diff --git a/docs/compiled/artplayer-proxy-mediabunny.js b/docs/compiled/artplayer-proxy-mediabunny.js
index 099dbcd87..87b7001d9 100644
--- a/docs/compiled/artplayer-proxy-mediabunny.js
+++ b/docs/compiled/artplayer-proxy-mediabunny.js
@@ -4,4 +4,4 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
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a=0;t+3<e.length&&0===e[t+1]&&0===e[t+2]&&1===e[t+3]?a=4:0===e[t+1]&&1===e[t+2]&&(a=3),0!==a?(-1!==i&&t>i&&(yield{offset:i,length:t-i}),i=t+a,t=i):t++}-1!==i&&i<e.length&&(yield{offset:i,length:e.length-i})},It=function*(e,t){let i=0;const r=new DataView(e.buffer,e.byteOffset,e.byteLength);for(;i+t<=e.length;){let e;1===t?e=r.getUint8(i):2===t?e=r.getUint16(i,!1):3===t?e=Se(r,i,!1):(j(4===t),e=r.getUint32(i,!1)),i+=t,yield{offset:i,length:e},i+=e}},xt=(e,t)=>{if(t.description){const i=3&Y(t.description)[4];return It(e,i+1)}return Pt(e)},Ct=e=>31&e,Bt=e=>{const t=[],i=e.length;for(let r=0;r<i;r++)r+2<i&&0===e[r]&&0===e[r+1]&&3===e[r+2]?(t.push(0,0),r+=2):t.push(e[r]);return new Uint8Array(t)},Et=new Uint8Array([0,0,0,1]),_t=e=>{const t=e.reduce((e,t)=>e+Et.byteLength+t.byteLength,0),i=new Uint8Array(t);let r=0;for(const a of e)i.set(Et,r),r+=Et.byteLength,i.set(a,r),r+=a.byteLength;return i},Rt=(e,t)=>{const i=e.reduce((e,i)=>e+t+i.byteLength,0),r=new Uint8Array(i);let a=0;for(const s of e){const e=new DataView(r.buffer,r.byteOffset,r.byteLength);switch(t){case 1:e.setUint8(a,s.byteLength);break;case 2:e.setUint16(a,s.byteLength,!1);break;case 3:ve(e,a,s.byteLength);break;case 4:e.setUint32(a,s.byteLength,!1)}a+=t,r.set(s,a),a+=s.byteLength}return r},Ft=e=>{try{const t=[],i=[],r=[];for(const o of Pt(e)){const a=e.subarray(o.offset,o.offset+o.length),s=Ct(a[0]);s===wt.SPS?t.push(a):s===wt.PPS?i.push(a):s===wt.SPS_EXT&&r.push(a)}if(0===t.length)return null;if(0===i.length)return null;const a=t[0],s=Nt(a);j(null!==s);const n=100===s.profileIdc||110===s.profileIdc||122===s.profileIdc||144===s.profileIdc;return{configurationVersion:1,avcProfileIndication:s.profileIdc,profileCompatibility:s.constraintFlags,avcLevelIndication:s.levelIdc,lengthSizeMinusOne:3,sequenceParameterSets:t,pictureParameterSets:i,chromaFormat:n?s.chromaFormatIdc:null,bitDepthLumaMinus8:n?s.bitDepthLumaMinus8:null,bitDepthChromaMinus8:n?s.bitDepthChromaMinus8:null,sequenceParameterSetExt:n?r:null}}catch(t){return ct._error("Error building AVC Decoder Configuration Record:",t),null}},At=e=>{const t=[];t.push(e.configurationVersion),t.push(e.avcProfileIndication),t.push(e.profileCompatibility),t.push(e.avcLevelIndication),t.push(252|3&e.lengthSizeMinusOne),t.push(224|31&e.sequenceParameterSets.length);for(const i of e.sequenceParameterSets){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r<e;r++)t.push(i[r])}t.push(e.pictureParameterSets.length);for(const i of e.pictureParameterSets){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r<e;r++)t.push(i[r])}if((100===e.avcProfileIndication||110===e.avcProfileIndication||122===e.avcProfileIndication||144===e.avcProfileIndication)&&null!==e.chromaFormat){j(null!==e.bitDepthLumaMinus8),j(null!==e.bitDepthChromaMinus8),j(null!==e.sequenceParameterSetExt),t.push(252|3&e.chromaFormat),t.push(248|7&e.bitDepthLumaMinus8),t.push(248|7&e.bitDepthChromaMinus8),t.push(e.sequenceParameterSetExt.length);for(const i of e.sequenceParameterSetExt){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r<e;r++)t.push(i[r])}}return new Uint8Array(t)},Mt=e=>{try{const t=J(e);let i=0;const r=t.getUint8(i++),a=t.getUint8(i++),s=t.getUint8(i++),n=t.getUint8(i++),o=3&t.getUint8(i++),c=31&t.getUint8(i++),l=[];for(let f=0;f<c;f++){const r=t.getUint16(i,!1);i+=2,l.push(e.subarray(i,i+r)),i+=r}const u=t.getUint8(i++),h=[];for(let f=0;f<u;f++){const r=t.getUint16(i,!1);i+=2,h.push(e.subarray(i,i+r)),i+=r}const d={configurationVersion:r,avcProfileIndication:a,profileCompatibility:s,avcLevelIndication:n,lengthSizeMinusOne:o,sequenceParameterSets:l,pictureParameterSets:h,chromaFormat:null,bitDepthLumaMinus8:null,bitDepthChromaMinus8:null,sequenceParameterSetExt:null};if((100===a||110===a||122===a||144===a)&&i+4<=e.length){const r=3&t.getUint8(i++),a=7&t.getUint8(i++),s=7&t.getUint8(i++),n=t.getUint8(i++);d.chromaFormat=r,d.bitDepthLumaMinus8=a,d.bitDepthChromaMinus8=s;const o=[];for(let c=0;c<n;c++){const r=t.getUint16(i,!1);i+=2,o.push(e.subarray(i,i+r)),i+=r}d.sequenceParameterSetExt=o}return d}catch(t){return ct._error("Error deserializing AVC Decoder Configuration Record:",t),null}},Dt={1:{num:1,den:1},2:{num:12,den:11},3:{num:10,den:11},4:{num:16,den:11},5:{num:40,den:33},6:{num:24,den:11},7:{num:20,den:11},8:{num:32,den:11},9:{num:80,den:33},10:{num:18,den:11},11:{num:15,den:11},12:{num:64,den:33},13:{num:160,den:99},14:{num:4,den:3},15:{num:3,den:2},16:{num:2,den:1}},Nt=e=>{try{const t=Bt(e),i=new dt(t);i.skipBits(1),i.skipBits(2);if(7!==i.readBits(5))return null;const r=i.readAlignedByte(),a=i.readAlignedByte(),s=i.readAlignedByte();$(i);let n=1,o=0,c=0,l=0;if(100===r||110===r||122===r||244===r||44===r||83===r||86===r||118===r||128===r){n=$(i),3===n&&(l=i.readBits(1)),o=$(i),c=$(i),i.skipBits(1);if(i.readBits(1))for(let e=0;e<(3!==n?8:12);e++){if(i.readBits(1)){const t=e<6?16:64;let r=8,a=8;for(let e=0;e<t;e++){if(0!==a){a=(r+Q(i)+256)%256}r=0===a?r:a}}}}$(i);const u=$(i);if(0===u)$(i);else if(1===u){i.skipBits(1),Q(i),Q(i);const e=$(i);for(let t=0;t<e;t++)Q(i)}$(i),i.skipBits(1);const h=$(i),d=$(i),f=16*(h+1),m=16*(d+1);let p=f,g=m;const k=i.readBits(1);k||i.skipBits(1),i.skipBits(1);if(i.readBits(1)){const e=$(i),t=$(i),r=$(i),a=$(i);let s,o;if(0===(0===l?n:0))s=1,o=2-k;else{s=3===n?1:2,o=(1===n?2:1)*(2-k)}p-=s*(e+t),g-=o*(r+a)}let y=2,b=2,w=2,T=0,S={num:1,den:1},v=null,P=null,I=null,x=null;const C=i.pos;if(i.readBits(1)){if(i.readBits(1)){const e=i.readBits(8);if(255===e)S={num:i.readBits(16),den:i.readBits(16)};else{const t=Dt[e];t&&(S=t)}}i.readBits(1)&&i.skipBits(1);if(i.readBits(1)){i.skipBits(3),T=i.readBits(1);i.readBits(1)&&(y=i.readBits(8),b=i.readBits(8),w=i.readBits(8))}i.readBits(1)&&($(i),$(i));i.readBits(1)&&(i.skipBits(32),i.skipBits(32),i.skipBits(1));const e=i.readBits(1);e&&Ot(i);const t=i.readBits(1);t&&Ot(i),(e||t)&&i.skipBits(1),i.skipBits(1),I=i.pos,x=i.readBits(1),x&&(i.skipBits(1),$(i),$(i),$(i),$(i),v=$(i),P=$(i))}if(null===v){j(null===P);if(44!==r&&86!==r&&100!==r&&110!==r&&122!==r&&244!==r||!(16&a)){const e=h+1,t=(2-k)*(d+1),i=Ai.find(e=>e.level>=s)??X(Ai),r=Math.min(Math.floor(i.maxDpbMbs/(e*t)),16);v=r,P=r}else v=0,P=0}return j(null!==P),{emulationUnpreventedBytes:t,profileIdc:r,constraintFlags:a,levelIdc:s,frameMbsOnlyFlag:k,chromaFormatIdc:n,bitDepthLumaMinus8:o,bitDepthChromaMinus8:c,codedWidth:f,codedHeight:m,displayWidth:p,displayHeight:g,pixelAspectRatio:S,colourPrimaries:y,matrixCoefficients:w,transferCharacteristics:b,fullRangeFlag:T,numReorderFrames:v,maxDecFrameBuffering:P,vuiParametersFlagBitOffset:C,bitstreamRestrictionFlagBitOffset:I,bitstreamRestrictionFlag:x}}catch(t){return ct._error("Error parsing AVC SPS:",t),null}},Ot=e=>{const t=$(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)$(e),$(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},Lt=e=>{j(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new dt(e.emulationUnpreventedBytes),r=new dt(t);null===e.bitstreamRestrictionFlag?(r.copyBits(e.vuiParametersFlagBitOffset,i),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(j(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),G(r,2),G(r,1),G(r,16),G(r,16),G(r,e.numReorderFrames),G(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const a=r.pos/8;return j(Number.isInteger(a)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,a))},zt=(e,t)=>{if(t.description){const i=3&Y(t.description)[21];return It(e,i+1)}return Pt(e)},Ut=e=>e>>1&63,qt=e=>{try{const t=new dt(Bt(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:a,general_tier_flag:s,general_profile_idc:n,general_profile_compatibility_flags:o,general_constraint_indicator_flags:c,general_level_idc:l}=Ht(t,i);$(t);const u=$(t);let h=0;3===u&&(h=t.readBits(1));const d=$(t),f=$(t);let m=d,p=f;if(t.readBits(1)){const e=$(t),i=$(t),r=$(t),a=$(t);let s=1,n=1;const o=0===h?u:0;1===o?(s=2,n=2):2===o&&(s=2,n=1),m-=(e+i)*s,p-=(r+a)*n}const g=$(t),k=$(t);$(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)$(t),b=$(t),$(t);$(t),$(t),$(t),$(t),$(t),$(t),t.readBits(1)&&t.readBits(1)&&Vt(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),$(t),$(t),t.skipBits(1));const w=$(t);if(jt(t,w),t.readBits(1)){const e=$(t);for(let i=0;i<e;i++)$(t),t.skipBits(1)}t.skipBits(1),t.skipBits(1);let T=2,S=2,v=2,P=0,I=0,x={num:1,den:1};if(t.readBits(1)){const e=Xt(t,i);x=e.pixelAspectRatio,T=e.colourPrimaries,S=e.transferCharacteristics,v=e.matrixCoefficients,P=e.fullRangeFlag,I=e.minSpatialSegmentationIdc}return{displayWidth:m,displayHeight:p,pixelAspectRatio:x,colourPrimaries:T,transferCharacteristics:S,matrixCoefficients:v,fullRangeFlag:P,maxDecFrameBuffering:b+1,spsMaxSubLayersMinus1:i,spsTemporalIdNestingFlag:r,generalProfileSpace:a,generalTierFlag:s,generalProfileIdc:n,generalProfileCompatibilityFlags:o,generalConstraintIndicatorFlags:c,generalLevelIdc:l,chromaFormatIdc:u,bitDepthLumaMinus8:g,bitDepthChromaMinus8:k,minSpatialSegmentationIdc:I}}catch(t){return ct._error("Error parsing HEVC SPS:",t),null}},Wt=e=>{try{const t=[],i=[],r=[],a=[];for(const c of Pt(e)){const s=e.subarray(c.offset,c.offset+c.length),n=Ut(s[0]);n===St.VPS_NUT?t.push(s):n===St.SPS_NUT?i.push(s):n===St.PPS_NUT?r.push(s):n!==St.PREFIX_SEI_NUT&&n!==St.SUFFIX_SEI_NUT||a.push(s)}if(0===i.length||0===r.length)return null;const s=qt(i[0]);if(!s)return null;let n=0;if(r.length>0){const e=r[0],t=new dt(Bt(e));t.skipBits(16),$(t),$(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),$(t),$(t),Q(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&$(t),Q(t),Q(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),a=t.readBits(1);n=i||a?i&&!a?2:!i&&a?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:St.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:St.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:St.PPS_NUT,nalUnits:r}]:[],...a.length?[{arrayCompleteness:1,nalUnitType:Ut(a[0][0]),nalUnits:a}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:n,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return ct._error("Error building HEVC Decoder Configuration Record:",t),null}},Ht=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),a=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const n=new Uint8Array(6);for(let u=0;u<6;u++)n[u]=e.readBits(8);const o=e.readBits(8),c=[],l=[];for(let u=0;u<t;u++)c.push(e.readBits(1)),l.push(e.readBits(1));if(t>0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u<t;u++)c[u]&&e.skipBits(88),l[u]&&e.skipBits(8);return{general_profile_space:i,general_tier_flag:r,general_profile_idc:a,general_profile_compatibility_flags:s,general_constraint_indicator_flags:n,general_level_idc:o}},Vt=e=>{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&Q(e);for(let t=0;t<i;t++)Q(e)}else $(e)}},jt=(e,t)=>{const i=[];for(let r=0;r<t;r++)i[r]=Kt(e,r,t,i)},Kt=(e,t,i,r)=>{let a=0,s=0,n=0;if(0!==t&&(s=e.readBits(1)),s){if(t===i){n=t-($(e)+1)}else n=t-1;e.readBits(1),$(e);const s=r[n]??0;for(let 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g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,w=1,T=1,S=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,w=0,T=0):(b=e.readBits(1),0===r?(w=1,T=1):1===r?(w=0,T=0):12===m?(w=e.readBits(1),T=w?e.readBits(1):0):(w=1,T=0),w&&T&&(S=e.readBits(2))),{profile:r,level:s,tier:n,bitDepth:m,monochrome:p,chromaSubsamplingX:w,chromaSubsamplingY:T,chromaSamplePosition:S,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},ri=e=>{if(e.length<36)return null;const t=J(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},ai=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],si=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in 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e=Number.parseInt(l,10);Number.isInteger(e)&&e>0&&(t.discsTotal??(t.discsTotal=e))}break;case"DATE":{const e=new Date(l);Number.isNaN(e.getTime())||(t.date??(t.date=e))}break;case"GENRE":t.genre??(t.genre=l);break;case"METADATA_BLOCK_PICTURE":{const e=Qe(l),i=J(e),r=i.getUint32(0,!1),a=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+a)),n=i.getUint32(8+a,!1),o=Z.decode(e.subarray(12+a,12+a+n)),c=i.getUint32(a+n+28),u=e.subarray(a+n+32,a+n+32+c);t.images??(t.images=[]),t.images.push({data:u,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},ui=[2,1,2,3,3,4,4,5],hi=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new dt(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),a=t.readBits(5);if(a>8)return null;const 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o=t.readBits(3),c=t.readBits(1),l=t.readBits(5);if(l<11||l>16)return null;const u=fi[s];let h;h=a<3?yt[a]/1e3:bt[n]/1e3;return{dataRate:Math.round((r+1)*h/(16*u)),substreams:[{fscod:a,fscod2:n,bsid:l,bsmod:0,acmod:o,lfeon:c,numDepSub:0,chanLoc:0}]}},pi=e=>{const t=e.substreams[0];return j(t),t.fscod<3?yt[t.fscod]:null!==t.fscod2&&t.fscod2<3?bt[t.fscod2]:null},gi=e=>{const t=e.substreams[0];j(t);let i=ui[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let r=0;r<9;r++)t.chanLoc&1<<8-r&&(i+=e[r])}return i},ki=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],yi=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],bi=[16,16,20,20,0,24,24,0],wi=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],Ti=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],Si=[32e3,44100,48e3,0],vi=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],Pi=[512,1024,2048,4096],Ii=e=>{const t=Ci(e),i=J(e);let r=t?4*Math.ceil(t.frameSize/4):0,a=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=Bi(e.subarray(r));if(!t)break;a??(a=t),r+=t.frameSize}if(t)return{frameSize:a?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==a};if(!a?.asset)return null;const{asset:s}=a;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},xi=e=>{const t=Ii(e);return t?.core?t.hasExtensions?"dtsh":"dtsc":null},Ci=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new dt(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const a=t.readBits(14)+1;if(a<96)return null;const s=t.readBits(6);if(s>=wi.length)return null;const n=ki[t.readBits(4)];if(0===n)return null;const o=yi[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const c=t.readBits(2);if(3===c)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const l=bi[t.readBits(3)];if(0===l)return null;const 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t=o.profile,i=o.level.toString().padStart(2,"0"),a=o.tier?"H":"M",s=o.bitDepth.toString().padStart(2,"0"),n=o.monochrome?"1":"0",c=100*o.chromaSubsamplingX+10*o.chromaSubsamplingY+1*(o.chromaSubsamplingX&&o.chromaSubsamplingY?o.chromaSamplePosition:0),l=r?.primaries?te[r.primaries]:1,u=r?.transfer?re[r.transfer]:1,h=r?.matrix?se[r.matrix]:1,d=r?.fullRange?1:0;let f=`av01.${t}.${i}${a}.${s}`;return f+=`.${n}.${c.toString().padStart(3,"0")}`,f+=`.${l.toString().padStart(2,"0")}`,f+=`.${u.toString().padStart(2,"0")}`,f+=`.${h.toString().padStart(2,"0")}`,f+=`.${d}`,f.endsWith(Ni)&&(f=f.slice(0,-17)),f}if("prores"===t)return c??"apch";throw null!==t&&Te(t),new TypeError(`Unhandled codec '${t}'.`)},Ui=e=>{switch(e.codec){case"avc":{let t=e.avcCodecInfo?.sequenceParameterSets[0];if(!t&&e.codecDescription&&(t=Mt(e.codecDescription)?.sequenceParameterSets[0]),t){const 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i=0;i<e.length;i++)if(e[i]!==t[i])return!1;return!0})(e.data,t.data),or=e=>{let t=uc(e);const i=bc(e,4);let r=8;1===t&&(t=mc(e),r=16);const a=t-r;return a<0?null:{name:i,totalSize:t,headerSize:r,contentSize:a}},cr=e=>dc(e)/65536,lr=e=>dc(e)/1073741824,ur=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=ac(e);if(t|=127&i,0===(128&i))break}return t},hr=e=>{let t=nc(e);return e.skip(2),t=Math.min(t,e.remainingLength),Z.decode(rc(e,t))},dr=e=>{const t=or(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=uc(e);e.skip(4);const r=rc(e,t.contentSize-8);switch(i){case 1:return Z.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new lt(r,"image/jpeg");case 14:return new lt(r,"image/png");case 27:return new lt(r,"image/bmp");default:return r}},fr=16,mr=new Uint32Array(256),pr=new Uint32Array(256),gr=new Uint32Array(256),kr=new Uint32Array(256),yr=new Uint32Array(256),br=new Uint32Array(256),wr=new Uint32Array(10);let Tr=!1;class Sr{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(fr/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(fr),this.out=new Uint8Array(fr),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){j(16===e.byteLength),j(16===t.byteLength),Tr||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,n=1;s<256;s++)i[s]=n,t[n]=s,n=n^n<<1^(128&n?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let a=r^r<<1^r<<2^r<<3^r<<4;a=a>>>8^255&a^99,e[s]=a}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);mr[s]=t<<24|t<<16|t<<8|t,br[s]=i<<24|i<<16|i<<8|i;const a=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);pr[s]=a,gr[s]=a>>>8|a<<24,kr[s]=a>>>16|a<<16,yr[s]=a>>>24|a<<8}let a=1;for(let s=0;s<10;s++)wr[s]=a<<24,a=a<<1^(128&a?283:0);Tr=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let a=4;a<44;a+=4){const e=this.roundkey[a-1];this.roundkey[a]=this.roundkey[a-4]^4278190080&mr[e>>>16&255]^16711680&mr[e>>>8&255]^65280&mr[e>>>0&255]^255&mr[e>>>24&255]^wr[a/4-1],this.roundkey[a+1]=this.roundkey[a-3]^this.roundkey[a],this.roundkey[a+2]=this.roundkey[a-2]^this.roundkey[a+1],this.roundkey[a+3]=this.roundkey[a-1]^this.roundkey[a+2]}for(let a=0,s=40;a<s;a+=4,s-=4)for(let e=0;e<4;e++){const t=this.roundkey[a+e];this.roundkey[a+e]=this.roundkey[s+e],this.roundkey[s+e]=t}for(let a=4;a<40;a+=4)for(let e=0;e<4;e++){const t=this.roundkey[a+e];this.roundkey[a+e]=pr[255&mr[t>>>24&255]]^gr[255&mr[t>>>16&255]]^kr[255&mr[t>>>8&255]]^yr[255&mr[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const a=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),n=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let c,l,u,h;for(let g=1;g<10;g++){const a=4*g;c=pr[e>>>24]^gr[r>>>16&255]^kr[i>>>8&255]^yr[255&t]^this.roundkey[a],l=pr[t>>>24]^gr[e>>>16&255]^kr[r>>>8&255]^yr[255&i]^this.roundkey[a+1],u=pr[i>>>24]^gr[t>>>16&255]^kr[e>>>8&255]^yr[255&r]^this.roundkey[a+2],h=pr[r>>>24]^gr[i>>>16&255]^kr[t>>>8&255]^yr[255&e]^this.roundkey[a+3],e=c,t=l,i=u,r=h}const d=4278190080&br[e>>>24&255]^16711680&br[r>>>16&255]^65280&br[i>>>8&255]^255&br[t>>>0&255]^this.roundkey[40],f=4278190080&br[t>>>24&255]^16711680&br[e>>>16&255]^65280&br[r>>>8&255]^255&br[i>>>0&255]^this.roundkey[41],m=4278190080&br[i>>>24&255]^16711680&br[t>>>16&255]^65280&br[e>>>8&255]^255&br[r>>>0&255]^this.roundkey[42],p=4278190080&br[r>>>24&255]^16711680&br[i>>>16&255]^65280&br[t>>>8&255]^255&br[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,d^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=a,this.iv[1]=s,this.iv[2]=n,this.iv[3]=o}}class vr extends ir{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.tracks.map(e=>e.trackBacking)}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>"video"===e.info?.type),hasAudio:this.tracks.some(e=>"audio"===e.info?.type),codecStrings:t.filter(Boolean)})}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(Xe(r)&&(r=await r),!r)break;const a=e,s=or(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=bc(r,4);this.isQuickTime="qt  "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(Xe(e)&&(e=await e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>a+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');await this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=a+s.totalSize}if(!i&&this.input._initInput&&await this.copyMetadataFromInitInput(this.input._initInput),t){j(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);Xe(e)&&(e=await e),j(e);const t=uc(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(Xe(e)&&(e=await e),e){const t=or(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);Xe(i)&&(i=await i),i&&this.readContiguousBoxes(i)}}}}})())}async copyMetadataFromInitInput(e){const t=await e._getDemuxer();if(t.constructor!==vr)throw new Error("Init input must match the input's format.");await t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const i of t.tracks){const e={id:i.id,demuxer:this,trackBacking:null,disposition:i.disposition,timescale:i.timescale,durationInMediaTimescale:i.durationInMediaTimescale,durationInMovieTimescale:i.durationInMovieTimescale,rotation:i.rotation,internalCodecId:i.internalCodecId,name:i.name,languageCode:i.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:i.editListPreviousSegmentDurations,editListOffset:i.editListOffset,encryptionInfo:i.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:i.info};if(i.trackBacking)if(j(e.info),"video"===e.info.type&&-1!==e.info.width){const t=e;e.trackBacking=new Ir(t),this.tracks.push(e)}else if("audio"===e.info.type&&-1!==e.info.numberOfChannels){const t=e;e.trackBacking=new xr(t),this.tracks.push(e)}}}getSampleTableForTrack(e){if(e.sampleTable)return e.sampleTable;const t={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=t,null===e.sampleTableByteOffset)return t;j(this.moovSlice);const i=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(i),this.currentTrack=null;if("audio"===e.info?.type&&e.info.codec&&Ri.includes(e.info.codec)&&0===t.sampleCompositionTimeOffsets.length){j("audio"===e.info?.type);const i=Vi(e.info.codec),r=[],a=[];for(let s=0;s<t.sampleToChunk.length;s++){const n=t.sampleToChunk[s],o=t.sampleToChunk[s+1],c=(o?o.startChunkIndex:t.chunkOffsets.length)-n.startChunkIndex;for(let s=0;s<c;s++){const o=n.startSampleIndex+s*n.samplesPerChunk,c=o+n.samplesPerChunk,l=pe(t.sampleTimingEntries,o,e=>e.startIndex),u=t.sampleTimingEntries[l],h=pe(t.sampleTimingEntries,c,e=>e.startIndex),d=t.sampleTimingEntries[h],f=u.startDecodeTimestamp+(o-u.startIndex)*u.delta,m=d.startDecodeTimestamp+(c-d.startIndex)*d.delta-f,p=X(r);p&&p.delta===m?p.count++:r.push({startIndex:n.startChunkIndex+s,startDecodeTimestamp:f,count:1,delta:m});const g=n.samplesPerChunk*i.sampleSize*e.info.numberOfChannels;a.push(g)}n.startSampleIndex=n.startChunkIndex,n.samplesPerChunk=1}t.sampleTimingEntries=r,t.sampleSizes=a}if(t.sampleCompositionTimeOffsets.length>0){t.presentationTimestamps=[];for(const e of t.sampleTimingEntries)for(let i=0;i<e.count;i++)t.presentationTimestamps.push({presentationTimestamp:e.startDecodeTimestamp+i*e.delta,sampleIndex:e.startIndex+i});for(const e of t.sampleCompositionTimeOffsets)for(let i=0;i<e.count;i++){const r=e.startIndex+i,a=t.presentationTimestamps[r];a&&(a.presentationTimestamp+=e.offset)}t.presentationTimestamps.sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp),t.presentationTimestampIndexMap=Array(t.presentationTimestamps.length).fill(-1);for(let e=0;e<t.presentationTimestamps.length;e++)t.presentationTimestampIndexMap[t.presentationTimestamps[e].sampleIndex]=e}return t}async readFragment(e){if(this.lastReadFragment?.moofOffset===e)return this.lastReadFragment;let t=this.reader.requestSliceRange(e,8,16);Xe(t)&&(t=await t),j(t);const i=or(t);j("moof"===i?.name);let r=this.reader.requestSlice(e,i.totalSize);Xe(r)&&(r=await r),j(r),this.traverseBox(r);const a=this.lastReadFragment;j(a&&a.moofOffset===e);for(const[,s]of a.trackData){const e=s.track,{fragmentPositionCache:t}=e;if(!s.startTimestampIsFinal){const i=e.fragmentLookupTable.find(e=>e.moofOffset===a.moofOffset);if(i)Rr(s,i.timestamp);else{const e=pe(t,a.moofOffset-1,e=>e.moofOffset);if(-1!==e){const i=t[e];Rr(s,i.endTimestamp)}}s.startTimestampIsFinal=!0}const i=pe(t,s.startTimestamp,e=>e.startTimestamp);if(-1!==i&&t[i].moofOffset===a.moofOffset||t.splice(i+1,0,{moofOffset:a.moofOffset,startTimestamp:s.startTimestamp,endTimestamp:s.endTimestamp}),s.encryptionAuxInfo&&e.encryptionInfo){const t=await Dr(this.reader,e.encryptionInfo,s.encryptionAuxInfo);for(let e=0;e<Math.min(s.samples.length,t.length);e++){const i=t[e];s.samples[e].encryption=i}}}return a}readContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){if(!this.traverseBox(e))break}}*iterateContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){const t=e.filePos,i=or(e);if(!i)break;yield{boxInfo:i,slice:e},e.filePos=t+i.totalSize}}traverseBox(e){var t,i,r,a,s,n,o,c,l,u,h,d,f,m,p,g,k,y,b,w,T,S,v,P,I,x,C,B,E,_,R,F,A;const M=e.filePos,D=or(e);if(!D)return!1;const N=e.filePos,O=M+D.totalSize;switch(D.name){case"mdia":case"minf":case"dinf":case"mfra":case"edts":case"sinf":case"schi":case"wave":this.readContiguousBoxes(e.slice(N,D.contentSize));break;case"mvhd":{const t=ac(e);e.skip(3),1===t?(e.skip(16),this.movieTimescale=uc(e),this.movieDurationInTimescale=mc(e)):(e.skip(8),this.movieTimescale=uc(e),this.movieDurationInTimescale=uc(e))}break;case"trak":{const t={id:-1,demuxer:this,trackBacking:null,disposition:{...ht,primary:!1},info:null,timescale:-1,durationInMovieTimescale:-1,durationInMediaTimescale:-1,rotation:0,internalCodecId:null,name:null,languageCode:xe,sampleTableByteOffset:-1,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:0,editListOffset:0,encryptionInfo:null,encryptionAuxInfo:null,frmaCodecString:null};if(this.currentTrack=t,this.readContiguousBoxes(e.slice(N,D.contentSize)),-1!==t.id&&-1!==t.timescale&&null!==t.info)if("video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new Ir(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new xr(e),this.tracks.push(t)}this.currentTrack=null}break;case"tkhd":{const t=this.currentTrack;if(!t)break;const i=ac(e),r=!!(1&oc(e));if(t.disposition.default=r,0===i)e.skip(8),t.id=uc(e),e.skip(4),t.durationInMovieTimescale=uc(e);else{if(1!==i)throw new Error(`Incorrect track header version ${i}.`);e.skip(16),t.id=uc(e),e.skip(4),t.durationInMovieTimescale=mc(e)}e.skip(16);const a=[cr(e),cr(e),lr(e),cr(e),cr(e),lr(e),cr(e),cr(e),lr(e)],s=K(Be(Fr(a),90));j(0===s||90===s||180===s||270===s),t.rotation=s}break;case"elst":{const t=this.currentTrack;if(!t)break;const i=ac(e);e.skip(3);let r=!1,a=0;const s=uc(e);for(let n=0;n<s;n++){const s=1===i?mc(e):uc(e),n=1===i?pc(e):dc(e),o=cr(e);if(r){ct._warn("Unsupported edit list: multiple edits are not currently supported. Only using first edit.");break}if(-1!==n){if(1!==o){ct._warn("Unsupported edit list entry: media rate must be 1.");break}t.editListPreviousSegmentDurations=a,t.editListOffset=n,r=!0}else a+=s}}break;case"mdhd":{const t=this.currentTrack;if(!t)break;const i=ac(e);e.skip(3),0===i?(e.skip(8),t.timescale=uc(e),t.durationInMediaTimescale=uc(e)):1===i&&(e.skip(16),t.timescale=uc(e),t.durationInMediaTimescale=mc(e));let r=nc(e);if(r>0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;Ae(t.languageCode)||(t.languageCode=xe)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=bc(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:{...ce},avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=M,this.readContiguousBoxes(e.slice(N,D.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=ac(e);e.skip(3);const r=uc(e);for(let a=0;a<r;a++){const r=e.filePos,a=or(e);if(!a)break;t.internalCodecId=a.name;const s=a.name.toLowerCase();if("video"===t.info.type){e.skip(24),t.info.width=nc(e),t.info.height=nc(e),t.info.squarePixelWidth=t.info.width,t.info.squarePixelHeight=t.info.height,e.skip(50),t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+a.totalSize-e.filePos));const i="encv"===s?t.frmaCodecString:s;t.frmaCodecString=null,"avc1"===i||"avc3"===i?(t.info.codec="avc",t.info.avcType="avc1"===i?1:3):"hvc1"===i||"hev1"===i?t.info.codec="hevc":"vp08"===i?t.info.codec="vp8":"vp09"===i?t.info.codec="vp9":"av01"===i?t.info.codec="av1":Oi.includes(s)?(t.info.codec="prores",t.info.proresFormat=s):null===i?ct._warn("Unknown encrypted video codec due to missing frma box."):ct._warn(`Unsupported video codec (sample entry type '${a.name}').`)}else{e.skip(8);const n=nc(e);e.skip(6);let o=nc(e),c=nc(e);e.skip(4);let l=uc(e)/65536,u=null;0===i&&n>0&&(1===n?(e.skip(4),c=8*uc(e),e.skip(8)):2===n&&(e.skip(4),l=yc(e),o=uc(e),e.skip(4),c=uc(e),u=uc(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=l,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+a.totalSize-e.filePos));const h="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===h);else if("opus"===h)t.info.codec="opus",t.info.sampleRate=Wi;else if("flac"===h)t.info.codec="flac";else if("ulaw"===h)t.info.codec="ulaw";else if("alaw"===h)t.info.codec="alaw";else if("ac-3"===h)t.info.codec="ac3";else if("ec-3"===h)t.info.codec="eac3";else if(Li.includes(h))t.info.codec="dts",t.info.dtsFormat=h;else if("twos"===h)8===c?t.info.codec="pcm-s8":16===c?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(ct._warn(`Unsupported sample size ${c} for codec 'twos'.`),t.info.codec=null);else if("sowt"===h)8===c?t.info.codec="pcm-s8":16===c?t.info.codec="pcm-s16":(ct._warn(`Unsupported sample size ${c} for codec 'sowt'.`),t.info.codec=null);else if("raw "===h)t.info.codec="pcm-u8";else if("in24"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===h){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(ct._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(ct._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===h){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(ct._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(ct._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===h&&null!==u){const e=c+7>>3,i=Boolean(1&u),r=Boolean(2&u),a=4&u?-1:0;c>0&&c<=64&&(i?32===c&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):a&1<<e-1?1===e?t.info.codec="pcm-s8":2===e?t.info.codec=r?"pcm-s16be":"pcm-s16":3===e?t.info.codec=r?"pcm-s24be":"pcm-s24":4===e&&(t.info.codec=r?"pcm-s32be":"pcm-s32"):1===e&&(t.info.codec="pcm-u8")),null===t.info.codec&&ct._warn("Unsupported PCM format.")}else null===h?ct._warn("Unknown encrypted audio codec due to missing frma box."):ct._warn(`Unsupported audio codec (sample entry type '${a.name}').`)}e.filePos=r+a.totalSize}}break;case"frma":{const t=this.currentTrack;if(!t)break;const i=bc(e,4).toLowerCase();t.frmaCodecString=i}break;case"schm":{const t=this.currentTrack;if(!t)break;e.skip(4);const i=bc(e,4);"cenc"===i||"cens"===i||"cbcs"===i?t.encryptionInfo={scheme:i,defaultKid:null,defaultIsProtected:null,defaultPerSampleIvSize:null,defaultConstantIv:null,defaultCryptByteBlock:null,defaultSkipByteBlock:null}:ct._warn(`Unsupported encryption scheme '${i}'.`)}break;case"tenc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=ac(e);e.skip(3),e.skip(1);const r=ac(e);if(i>0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==ac(e),t.encryptionInfo.defaultPerSampleIvSize=ac(e),t.encryptionInfo.defaultKid=de(rc(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=ac(e),r=new Uint8Array(16);r.set(rc(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(j(t.info),0===D.contentSize)break;t.info.codecDescription=rc(e,D.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(j(t.info),0===D.contentSize)break;t.info.codecDescription=rc(e,D.contentSize)}break;case"vpcC":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type),e.skip(4);const i=ac(e),r=ac(e),a=ac(e),s=a>>4,n=a>>1&7,o=1&a,c=ac(e),l=ac(e),u=ac(e);t.info.vp9CodecInfo={profile:i,level:r,bitDepth:s,chromaSubsampling:n,videoFullRangeFlag:o,colourPrimaries:c,transferCharacteristics:l,matrixCoefficients:u}}break;case"av1C":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type),e.skip(1);const i=ac(e),r=i>>5,a=31&i,s=ac(e),n=s>>7,o=s>>6&1,c=s>>4&1,l=s>>3&1,u=s>>2&1,h=3&s,d=2===r&&o?s>>5&1?12:10:o?10:8;e.skip(1);const f=rc(e,D.contentSize-4),m=ii(f);t.info.av1CodecInfo={profile:r,level:a,tier:n,bitDepth:d,monochrome:c,chromaSubsamplingX:l,chromaSubsamplingY:u,chromaSamplePosition:h,videoFullRangeFlag:m?.videoFullRangeFlag??0,colourPrimaries:m?.colourPrimaries??2,transferCharacteristics:m?.transferCharacteristics??2,matrixCoefficients:m?.matrixCoefficients??2}}break;case"colr":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type);const i=bc(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=nc(e),a=nc(e),s=nc(e);let n;"nclx"===i&&(n=Boolean(128&ac(e))),t.info.colorSpace={primaries:ie[r],transfer:ae[a],matrix:ne[s],fullRange:n}}break;case"pasp":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type);const i=uc(e),r=uc(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==t.info?.type)break;e.skip(4);j(3===ac(e)),ur(e),e.skip(2);const i=ac(e),r=0!==(64&i),a=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=ac(e);e.skip(t)}a&&e.skip(2);j(4===ac(e));const s=ur(e),n=e.filePos,o=ac(e);if(64===o||103===o?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===o,objectType:null}):105===o||107===o?t.info.codec="mp3":221===o?t.info.codec="vorbis":169===o?t.info.codec="dts":ct._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-n){j(5===ac(e));const i=ur(e);if(t.info.codecDescription=rc(e,i),"aac"===t.info.codec){const e=pt(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),t.info.pcmLittleEndian=!!(255&nc(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),e.skip(4);const i=ac(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=ac(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),e.skip(1);const i=ac(e),r=nc(e),a=uc(e),s=cc(e),n=ac(e);let o;o=0!==n?rc(e,2+i):new Uint8Array(0);const c=new Uint8Array(19+o.byteLength),l=new DataView(c.buffer);l.setUint32(0,1332770163,!1),l.setUint32(4,1214603620,!1),l.setUint8(8,1),l.setUint8(9,i),l.setUint16(10,r,!0),l.setUint32(12,a,!0),l.setInt16(16,s,!0),l.setUint8(18,n),c.set(o,19),t.info.codecDescription=c,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),e.skip(4);const i=127,r=128,a=e.filePos;for(;e.filePos<O;){const a=ac(e),s=oc(e);if((a&i)===oi.STREAMINFO){e.skip(10);const i=uc(e),r=i>>>12,a=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=a,e.skip(20)}else e.skip(s);if(a&r)break}const s=e.filePos;e.filePos=a;const n=rc(e,s-a),o=new Uint8Array(4+n.byteLength);new DataView(o.buffer).setUint32(0,1716281667,!1),o.set(n,4),t.info.codecDescription=o}break;case"dac3":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type);const i=rc(e,3),r=new dt(i),a=r.readBits(2);r.skipBits(8);const s=r.readBits(3),n=r.readBits(1);a<3&&(t.info.sampleRate=yt[a]),t.info.numberOfChannels=ui[s]+n}break;case"dec3":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type);const i=(e=>{if(e.length<2)return null;const t=new dt(e),i=t.readBits(13),r=t.readBits(3),a=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),n=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let c=0;o>0?c=t.readBits(9):t.skipBits(1),a.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:n,numDepSub:o,chanLoc:c})}return 0===a.length?null:{dataRate:i,substreams:a}})(rc(e,D.contentSize));if(!i){ct._warn("Invalid dec3 box contents, ignoring.");break}const r=pi(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=gi(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type);const i=(e=>{if(e.length<20)return null;const t=J(e),i=t.getUint32(0);if(0===i)return null;const r=new dt(e);r.seekToByte(13);const a=r.readBits(2);r.skipBits(5);const s=r.readBits(1),n=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let c=null;return 0!==o?c=Ei(o):n<wi.length&&(c=wi[n]+s),{sampleRate:i,maxBitrate:t.getUint32(4),avgBitrate:t.getUint32(8),pcmSampleDepth:e[12],sampleCount:Pi[a],channelLayout:o,numberOfChannels:c}})(rc(e,Math.min(D.contentSize,20)));if(!i){ct._warn("Invalid ddts box contents, ignoring.");break}t.info.sampleRate=i.sampleRate,null!==i.numberOfChannels&&(t.info.numberOfChannels=i.numberOfChannels)}break;case"stts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);let r=0,a=0;for(let s=0;s<i;s++){const i=uc(e),s=uc(e);t.sampleTable.sampleTimingEntries.push({startIndex:r,startDecodeTimestamp:a,count:i,delta:s}),r+=i,a+=i*s}}break;case"ctts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);let r=0;for(let a=0;a<i;a++){const i=uc(e),a=dc(e);t.sampleTable.sampleCompositionTimeOffsets.push({startIndex:r,count:i,offset:a}),r+=i}}break;case"stsz":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e),r=uc(e);if(0===i)for(let a=0;a<r;a++){const i=uc(e);t.sampleTable.sampleSizes.push(i)}else t.sampleTable.sampleSizes.push(i)}break;case"stz2":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),e.skip(3);const i=ac(e),r=uc(e),a=rc(e,Math.ceil(r*i/8)),s=new dt(a);for(let e=0;e<r;e++){const e=s.readBits(i);t.sampleTable.sampleSizes.push(e)}}break;case"stss":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),t.sampleTable.keySampleIndices=[];const i=uc(e);for(let r=0;r<i;r++){const i=uc(e)-1;t.sampleTable.keySampleIndices.push(i)}0!==t.sampleTable.keySampleIndices[0]&&t.sampleTable.keySampleIndices.unshift(0)}break;case"stsc":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);for(let a=0;a<i;a++){const i=uc(e)-1,r=uc(e),a=uc(e);t.sampleTable.sampleToChunk.push({startSampleIndex:-1,startChunkIndex:i,samplesPerChunk:r,sampleDescriptionIndex:a})}let r=0;for(let e=0;e<t.sampleTable.sampleToChunk.length;e++)if(t.sampleTable.sampleToChunk[e].startSampleIndex=r,e<t.sampleTable.sampleToChunk.length-1){r+=(t.sampleTable.sampleToChunk[e+1].startChunkIndex-t.sampleTable.sampleToChunk[e].startChunkIndex)*t.sampleTable.sampleToChunk[e].samplesPerChunk}}break;case"stco":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);for(let r=0;r<i;r++){const i=uc(e);t.sampleTable.chunkOffsets.push(i)}}break;case"co64":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);for(let r=0;r<i;r++){const i=mc(e);t.sampleTable.chunkOffsets.push(i)}}break;case"mvex":this.isFragmented=!0,this.readContiguousBoxes(e.slice(N,D.contentSize));break;case"mehd":{const t=ac(e);e.skip(3);const i=1===t?mc(e):uc(e);this.movieDurationInTimescale=i}break;case"trex":{e.skip(4);const t=uc(e),i=uc(e),r=uc(e),a=uc(e),s=uc(e);this.fragmentTrackDefaults.push({trackId:t,defaultSampleDescriptionIndex:i,defaultSampleDuration:r,defaultSampleSize:a,defaultSampleFlags:s})}break;case"tfra":{const t=ac(e);e.skip(3);const i=uc(e),r=this.tracks.find(e=>e.id===i);if(!r)break;const a=uc(e),s=(12&a)>>2,n=3&a,o=[ac,nc,oc,uc],c=o[(48&a)>>4],l=o[s],u=o[n],h=uc(e);for(let d=0;d<h;d++){const i=1===t?mc(e):uc(e),a=1===t?mc(e):uc(e);c(e),l(e),u(e),r.fragmentLookupTable.push({timestamp:i,moofOffset:a})}r.fragmentLookupTable.sort((e,t)=>e.timestamp-t.timestamp);for(let e=0;e<r.fragmentLookupTable.length-1;e++){const t=r.fragmentLookupTable[e],i=r.fragmentLookupTable[e+1];t.timestamp===i.timestamp&&(r.fragmentLookupTable.splice(e+1,1),e--)}}break;case"moof":this.currentFragment={moofOffset:M,moofSize:D.totalSize,implicitBaseDataOffset:M,trackData:new Map,psshBoxes:[]},this.readContiguousBoxes(e.slice(N,D.contentSize)),this.lastReadFragment=this.currentFragment,this.currentFragment=null;break;case"traf":if(j(this.currentFragment),this.readContiguousBoxes(e.slice(N,D.contentSize)),this.currentTrack){const e=this.currentFragment.trackData.get(this.currentTrack.id);e:if(e){if(0===e.samples.length){this.currentFragment.trackData.delete(this.currentTrack.id);break e}e.presentationTimestamps=e.samples.map((e,t)=>({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let a=0;a<e.presentationTimestamps.length;a++){const t=e.presentationTimestamps[a],i=e.samples[t.sampleIndex];if(null===e.firstKeyFrameTimestamp&&i.isKeyFrame&&(e.firstKeyFrameTimestamp=i.presentationTimestamp),a<e.presentationTimestamps.length-1){const r=e.presentationTimestamps[a+1].presentationTimestamp-t.presentationTimestamp;i.duration=r}}const t=e.samples[e.presentationTimestamps[0].sampleIndex],i=e.samples[X(e.presentationTimestamps).sampleIndex];e.startTimestamp=t.presentationTimestamp,e.endTimestamp=i.presentationTimestamp+i.duration;const{currentFragmentState:r}=this.currentTrack;j(r),null!==r.startTimestamp&&(Rr(e,r.startTimestamp),e.startTimestampIsFinal=!0),r.encryptionAuxInfo&&!e.samples[0].encryption&&(e.encryptionAuxInfo=r.encryptionAuxInfo)}this.currentTrack.currentFragmentState=null,this.currentTrack=null}break;case"pssh":{if(this.input._formatOptions.isobmff?._suppressPsshParsing)break;const t=sr(rc(e,D.contentSize));this.currentFragment?this.currentFragment.psshBoxes.push(t):this.currentTrack||this.psshBoxes.push(t)}break;case"tfhd":{j(this.currentFragment),e.skip(1);const t=oc(e),i=Boolean(1&t),r=Boolean(2&t),a=Boolean(8&t),s=Boolean(16&t),n=Boolean(32&t),o=Boolean(65536&t),c=Boolean(131072&t),l=uc(e),u=this.tracks.find(e=>e.id===l);if(!u)break;const h=this.fragmentTrackDefaults.find(e=>e.trackId===l);this.currentTrack=u,u.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:h?.defaultSampleDescriptionIndex??null,defaultSampleDuration:h?.defaultSampleDuration??null,defaultSampleSize:h?.defaultSampleSize??null,defaultSampleFlags:h?.defaultSampleFlags??null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=mc(e):c&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=uc(e)),a&&(u.currentFragmentState.defaultSampleDuration=uc(e)),s&&(u.currentFragmentState.defaultSampleSize=uc(e)),n&&(u.currentFragmentState.defaultSampleFlags=uc(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;j(t.currentFragmentState);const i=ac(e);e.skip(3);const r=0===i?uc(e):mc(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;j(this.currentFragment),j(t.currentFragmentState);const i=ac(e),r=oc(e),a=Boolean(1&r),s=Boolean(4&r),n=Boolean(256&r),o=Boolean(512&r),c=Boolean(1024&r),l=Boolean(2048&r),u=uc(e);let h=null;a&&(h=dc(e));let d,f=null;s&&(f=uc(e)),this.currentFragment.trackData.has(t.id)?(d=this.currentFragment.trackData.get(t.id),null!==h&&(d.currentOffset=t.currentFragmentState.baseDataOffset+h)):(d={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(h??0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,d));for(let m=0;m<u;m++){let r,a,s;n?r=uc(e):(j(null!==t.currentFragmentState.defaultSampleDuration),r=t.currentFragmentState.defaultSampleDuration),o?a=uc(e):(j(null!==t.currentFragmentState.defaultSampleSize),a=t.currentFragmentState.defaultSampleSize),c?s=uc(e):(j(null!==t.currentFragmentState.defaultSampleFlags),s=t.currentFragmentState.defaultSampleFlags),0===m&&null!==f&&(s=f);let u=0;l&&(u=0===i?uc(e):dc(e));const h=!(65536&s);d.samples.push({presentationTimestamp:d.currentTimestamp+u,duration:r,byteOffset:d.currentOffset,byteSize:a,isKeyFrame:h,encryption:null}),d.currentOffset+=a,d.currentTimestamp+=r}this.currentFragment.implicitBaseDataOffset=d.currentOffset}break;case"saiz":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;e.skip(1);if(1&oc(e)){const i=bc(e,4),r=uc(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const i=ac(e),r=uc(e);let a=null;0===i&&r>0&&(a=rc(e,r));const s=Mr(t);s.defaultSampleInfoSize=i,s.sampleSizes=a,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=ac(e);if(1&oc(e)){const i=bc(e,4),r=uc(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=uc(e);if(0===r)break;r>1&&ct._warn("Multiple saio entries are not supported; using the first offset only.");let a=0===i?uc(e):Number(mc(e));this.currentFragment&&(a+=this.currentFragment.moofOffset);Mr(t).offset=a}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;j(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=oc(e),a=Boolean(2&r),s=uc(e),n=t.encryptionInfo.defaultPerSampleIvSize;j(null!==n);for(let o=0;o<Math.min(s,i.samples.length);o++){const r=new Uint8Array(16);n>0?r.set(rc(e,n),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(a){const t=nc(e);s=[];for(let i=0;i<t;i++){const t=nc(e),i=uc(e);s.push({clearLen:t,protectedLen:i})}}i.samples[o].encryption={iv:r,subsamples:s}}}break;case"udta":{const p=this.iterateContiguousBoxes(e.slice(N,D.contentSize));for(const{boxInfo:e,slice:g}of p){if("meta"!==e.name&&!this.currentTrack){const n=g.filePos;(t=this.metadataTags).raw??(t.raw={}),"\xa9"===e.name[0]?(i=this.metadataTags.raw)[r=e.name]??(i[r]=hr(g)):(a=this.metadataTags.raw)[s=e.name]??(a[s]=rc(g,e.contentSize)),g.filePos=n}switch(e.name){case"meta":g.skip(-e.headerSize),this.traverseBox(g);break;case"\xa9nam":case"name":this.currentTrack?this.currentTrack.name=Z.decode(rc(g,e.contentSize)):(n=this.metadataTags).title??(n.title=hr(g));break;case"\xa9des":this.currentTrack||((o=this.metadataTags).description??(o.description=hr(g)));break;case"\xa9ART":this.currentTrack||((c=this.metadataTags).artist??(c.artist=hr(g)));break;case"\xa9alb":this.currentTrack||((l=this.metadataTags).album??(l.album=hr(g)));break;case"albr":this.currentTrack||((u=this.metadataTags).albumArtist??(u.albumArtist=hr(g)));break;case"\xa9gen":this.currentTrack||((h=this.metadataTags).genre??(h.genre=hr(g)));break;case"\xa9day":if(!this.currentTrack){const e=new Date(hr(g));Number.isNaN(e.getTime())||((d=this.metadataTags).date??(d.date=e))}break;case"\xa9cmt":this.currentTrack||((f=this.metadataTags).comment??(f.comment=hr(g)));break;case"\xa9lyr":this.currentTrack||((m=this.metadataTags).lyrics??(m.lyrics=hr(g)))}}}break;case"meta":{if(this.currentTrack)break;const t=0!==uc(e);this.currentMetadataKeys=new Map,t?this.readContiguousBoxes(e.slice(N,D.contentSize)):this.readContiguousBoxes(e.slice(N+4,D.contentSize-4)),this.currentMetadataKeys=null}break;case"keys":{if(!this.currentMetadataKeys)break;e.skip(4);const t=uc(e);for(let i=0;i<t;i++){const t=uc(e);e.skip(4);const r=Z.decode(rc(e,t-8));this.currentMetadataKeys.set(i+1,r)}}break;case"ilst":{if(!this.currentMetadataKeys)break;const t=this.iterateContiguousBoxes(e.slice(N,D.contentSize));for(const{boxInfo:e,slice:i}of t){let t=e.name;const r=(t.charCodeAt(0)<<24)+(t.charCodeAt(1)<<16)+(t.charCodeAt(2)<<8)+t.charCodeAt(3);this.currentMetadataKeys.has(r)&&(t=this.currentMetadataKeys.get(r));const a=dr(i);switch((p=this.metadataTags).raw??(p.raw={}),(g=this.metadataTags.raw)[t]??(g[t]=a),t){case"\xa9nam":case"titl":case"com.apple.quicktime.title":case"title":"string"===typeof a&&((k=this.metadataTags).title??(k.title=a));break;case"\xa9des":case"desc":case"dscp":case"com.apple.quicktime.description":case"description":"string"===typeof a&&((y=this.metadataTags).description??(y.description=a));break;case"\xa9ART":case"com.apple.quicktime.artist":case"artist":"string"===typeof a&&((b=this.metadataTags).artist??(b.artist=a));break;case"\xa9alb":case"albm":case"com.apple.quicktime.album":case"album":"string"===typeof a&&((w=this.metadataTags).album??(w.album=a));break;case"aART":case"album_artist":"string"===typeof a&&((T=this.metadataTags).albumArtist??(T.albumArtist=a));break;case"\xa9cmt":case"com.apple.quicktime.comment":case"comment":"string"===typeof a&&((S=this.metadataTags).comment??(S.comment=a));break;case"\xa9gen":case"gnre":case"com.apple.quicktime.genre":case"genre":"string"===typeof a&&((v=this.metadataTags).genre??(v.genre=a));break;case"\xa9lyr":case"lyrics":"string"===typeof a&&((P=this.metadataTags).lyrics??(P.lyrics=a));break;case"\xa9day":case"rldt":case"com.apple.quicktime.creationdate":case"date":if("string"===typeof a){const e=new Date(a);Number.isNaN(e.getTime())||((I=this.metadataTags).date??(I.date=e))}break;case"covr":case"com.apple.quicktime.artwork":a instanceof lt?((x=this.metadataTags).images??(x.images=[]),this.metadataTags.images.push({data:a.data,kind:"coverFront",mimeType:a.mimeType})):a instanceof Uint8Array&&((C=this.metadataTags).images??(C.images=[]),this.metadataTags.images.push({data:a,kind:"coverFront",mimeType:"image/*"}));break;case"track":if("string"===typeof a){const e=a.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&((B=this.metadataTags).trackNumber??(B.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((E=this.metadataTags).tracksTotal??(E.tracksTotal=i))}break;case"trkn":if(a instanceof Uint8Array&&a.length>=6){const e=J(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((_=this.metadataTags).trackNumber??(_.trackNumber=t)),i>0&&((R=this.metadataTags).tracksTotal??(R.tracksTotal=i))}break;case"disc":case"disk":if(a instanceof Uint8Array&&a.length>=6){const e=J(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((F=this.metadataTags).discNumber??(F.discNumber=t)),i>0&&((A=this.metadataTags).discsTotal??(A.discsTotal=i))}}}}}return e.filePos=O,!0}}class Pr{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.internalTrack;if(e.durationInMediaTimescale<=0)return null;j(e.trackBacking);const t=await e.trackBacking.getFirstPacket({metadataOnly:!0});return(t?.timestamp??0)+e.durationInMediaTimescale/e.timescale}async getLiveRefreshInterval(){return null}async getFirstPacket(e){const t=await this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)}mapTimestampIntoTimescale(e){return Ce(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}async getPacket(e,t){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a=Cr(r,i),s=await this.fetchPacketForSampleIndex(a,t);return Ar(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=pe(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s}async getNextPacket(e,t){const i=this.packetToSampleIndex.get(e);if(void 0!==i)return this.fetchPacketForSampleIndex(i+1,t);const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1<t.samples.length)return{sampleIndex:r.sampleIndex+1,correctSampleFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{sampleIndex:0,correctSampleFound:!0}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)}async getKeyPacket(e,t){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a=Br(r,i),s=await this.fetchPacketForSampleIndex(a,t);return Ar(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=we(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s}async getNextKeyPacket(e,t){const i=this.packetToSampleIndex.get(e);if(void 0!==i){const e=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=_r(e,i);return this.fetchPacketForSampleIndex(r,t)}const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return j(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)}async fetchPacketForSampleIndex(e,t){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=Er(i,e);if(!r)return null;let a;if(t.metadataOnly)a=rr;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(Xe(t)&&(t=await t),!t)return null;if(a=rc(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=await Dr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);e<i.length&&(t=i[e])}t??(t=Nr(this.internalTrack.encryptionInfo)),t&&(a=await Or(this.internalTrack,t,a,null))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,n=r.duration/this.internalTrack.timescale,o=new ar(a,r.isKeyFrame?"key":"delta",s,n,e,r.sampleSize);return this.packetToSampleIndex.set(o,e),o}async fetchPacketInFragment(e,t,i){if(-1===t)return null;const r=e.trackData.get(this.internalTrack.id).samples[t];let a;if(j(r),i.metadataOnly)a=rr;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.byteOffset,r.byteSize);if(Xe(t)&&(t=await t),!t)return null;if(a=rc(t,r.byteSize),this.internalTrack.encryptionInfo){const t=r.encryption??Nr(this.internalTrack.encryptionInfo);t&&(a=await Or(this.internalTrack,t,a,e))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,n=r.duration/this.internalTrack.timescale,o=new ar(a,r.isKeyFrame?"key":"delta",s,n,e.moofOffset+t,r.byteSize);return this.packetToFragmentLocation.set(o,{fragment:e,sampleIndex:t}),o}async performFragmentedLookup(e,t,i,r,a){const s=this.internalTrack.demuxer;let n=null,o=null,c=-1;if(e){const{sampleIndex:i,correctSampleFound:r}=t(e);if(r)return this.fetchPacketInFragment(e,i,a);-1!==i&&(o=e,c=i)}const l=pe(this.internalTrack.fragmentLookupTable,i,e=>e.timestamp),u=-1!==l?this.internalTrack.fragmentLookupTable[l]:null,h=pe(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),d=-1!==h?this.internalTrack.fragmentPositionCache[h]:null,f=Math.max(u?.moofOffset??0,d?.moofOffset??0)||null;let m;for(e?null===f||e.moofOffset>=f?(m=e.moofOffset+e.moofSize,n=e):m=f:m=f??0;;){if(n){const e=n.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=s.reader.requestSliceRange(m,8,16);if(Xe(e)&&(e=await e),!e)break;const i=m,l=or(e);if(!l)break;if("moof"===l.name){n=await s.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(n);if(r)return this.fetchPacketInFragment(n,e,a);-1!==e&&(o=n,c=e)}m=i+l.totalSize}if(u&&(!o||o.moofOffset<u.moofOffset)){const e=this.internalTrack.fragmentLookupTable[l-1];j(!e||e.timestamp<u.timestamp);const i=e?.timestamp??-1/0;return this.performFragmentedLookup(null,t,i,r,a)}return o?this.fetchPacketInFragment(o,c,a):null}}class Ir extends Pr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.rotation}async getColorSpace(){const e=await this.getDecoderConfig();return e?{primaries:e.colorSpace?.primaries,transfer:e.colorSpace?.transfer,matrix:e.colorSpace?.matrix,fullRange:e.colorSpace?.fullRange}:this.internalTrack.info.colorSpace}async canBeTransparent(){return"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{var e,t,i,r,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=await this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&ri(e.data)}}else{const e=await this.getFirstPacket({}),t=e&&ii(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const e=await this.getFirstPacket({}),t=e&&ei(e.data);t&&(this.internalTrack.info.vp9CodecInfo={...this.internalTrack.info.vp9CodecInfo??t,videoFullRangeFlag:t.videoFullRangeFlag,colourPrimaries:t.colourPrimaries,transferCharacteristics:t.transferCharacteristics,matrixCoefficients:t.matrixCoefficients})}else{const e=await this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&Wt(e.data)}else{const e=await this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&Ft(e.data)}if(!oe(this.internalTrack.info.colorSpace)){const a=Ui(this.internalTrack.info);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const s={codec:zi(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(s.displayAspectWidth=this.internalTrack.info.squarePixelWidth,s.displayAspectHeight=this.internalTrack.info.squarePixelHeight),s})()):null}}class xr extends Pr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&xi(e.data)}return{codec:qi(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Cr=(e,t)=>{if(e.presentationTimestamps){const i=pe(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=pe(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},Br=(e,t)=>{if(!e.keySampleIndices)return Cr(e,t);if(e.presentationTimestamps){const i=pe(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==me(e.keySampleIndices,i,e=>e))return i}return-1}{const i=Cr(e,t),r=pe(e.keySampleIndices,i,e=>e);return e.keySampleIndices[r]??-1}},Er=(e,t)=>{const i=pe(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let a=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=pe(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),n=e.sampleCompositionTimeOffsets[s];n&&t-n.startIndex<n.count&&(a+=n.offset);const o=e.sampleSizes[Math.min(t,e.sampleSizes.length-1)],c=pe(e.sampleToChunk,t,e=>e.startSampleIndex),l=e.sampleToChunk[c];j(l);const u=l.startChunkIndex+Math.floor((t-l.startSampleIndex)/l.samplesPerChunk),h=e.chunkOffsets[u],d=l.startSampleIndex+(u-l.startChunkIndex)*l.samplesPerChunk;let f=0,m=h;if(1===e.sampleSizes.length)m+=o*(t-d),f+=o*l.samplesPerChunk;else for(let g=d;g<d+l.samplesPerChunk;g++){const i=e.sampleSizes[g];g<t&&(m+=i),f+=i}let p=r.delta;if(e.presentationTimestamps){const i=e.presentationTimestampIndexMap[t];if(j(void 0!==i),i<e.presentationTimestamps.length-1){p=e.presentationTimestamps[i+1].presentationTimestamp-a}}return{presentationTimestamp:a,duration:p,sampleOffset:m,sampleSize:o,chunkOffset:h,chunkSize:f,isKeyFrame:!e.keySampleIndices||-1!==me(e.keySampleIndices,t,e=>e)}},_r=(e,t)=>{if(!e.keySampleIndices)return t+1;const i=pe(e.keySampleIndices,t,e=>e);return e.keySampleIndices[i+1]??-1},Rr=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},Fr=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},Ar=e=>0===e.sampleSizes.length,Mr=e=>{var t;return e.currentFragmentState?(t=e.currentFragmentState).encryptionAuxInfo??(t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}):e.encryptionAuxInfo??(e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null})},Dr=async(e,t,i)=>{if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{j(i.sampleSizes);for(let e=0;e<i.sampleCount;e++)r+=i.sampleSizes[e]}let a=e.requestSlice(i.offset,r);if(Xe(a)&&(a=await a),!a)throw new Error("Failed to read auxiliary encryption info.");const s=t.defaultPerSampleIvSize;j(null!==s);const n=[];for(let o=0;o<i.sampleCount;o++){const e=i.defaultSampleInfoSize>0?i.defaultSampleInfoSize:i.sampleSizes[o],r=new Uint8Array(16);s>0?r.set(rc(a,s),0):r.set(t.defaultConstantIv,0);let c=null;if(e>s){const e=nc(a);c=[];for(let t=0;t<e;t++){const e=nc(a),t=uc(a);c.push({clearLen:e,protectedLen:t})}}n.push({iv:r,subsamples:c})}return i.resolved=n,n},Nr=e=>e.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,Or=async(e,t,i,r)=>{j(e.encryptionInfo);const a=e.encryptionInfo;j(null!==a.defaultKid);const s=a.defaultKid;let n;const o=e.demuxer.decryptionKeyCache.get(s);if(o)n=await o;else{if(!e.demuxer.input._formatOptions.isobmff?.resolveKeyId)throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=(async()=>{let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(s));for(let e=0;e<t.length-1;e++)for(let i=e+1;i<t.length;i++)nr(t[e],t[i])&&(t.splice(i,1),i--)}const i=await e.demuxer.input._formatOptions.isobmff.resolveKeyId({keyId:s,psshBoxes:t});if(!("string"===typeof i&&32===i.length&&he.test(i)||i instanceof Uint8Array&&16===i.byteLength))throw new TypeError("resolveKeyId must return a 32-character hex string or a 16-byte Uint8Array containing the decryption key.");return i instanceof Uint8Array?i:(e=>{j(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;i<e.length;i+=2)t[i/2]=parseInt(e.slice(i,i+2),16);return t})(i)})();e.demuxer.decryptionKeyCache.set(s,t),n=await t}return"cenc"===a.scheme||"cens"===a.scheme?Lr(n,a,t,i):zr(n,a,t,i)},Lr=async(e,t,i,r)=>{const a=new Uint8Array(16);a.set(i.iv,0);const s=await crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),n=async e=>{const t=await crypto.subtle.decrypt({name:"AES-CTR",counter:a,length:64},s,e);return new Uint8Array(t)};if(!i.subsamples)return n(r);j(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=Ur(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let c=0;for(const m of o)for(const e of m.perSubsample)c+=e.length;const l=new Uint8Array(c);let u=0;for(const m of o)for(const e of m.perSubsample)l.set(r.subarray(e.offset,e.offset+e.length),u),u+=e.length;const h=await n(l),d=new Uint8Array(r);let f=0;for(const m of o)for(const e of m.perSubsample)d.set(h.subarray(f,f+e.length),e.offset),f+=e.length;return d},zr=(e,t,i,r)=>{const a=new Sr;a.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,n=t.defaultSkipByteBlock;if(j(null!==s&&null!==n),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i<t;i++){const t=16*i;a.in.set(r.subarray(t,t+16)),a.decrypt(),e.set(a.out,t)}return e}if(0===s&&0===n)throw new Error("cbcs with subsamples requires pattern encryption.");const o=new Uint8Array(r),c=Ur(i.subsamples,s,n),l=new DataView(i.iv.buffer,i.iv.byteOffset,16);for(const u of c){a.iv[0]=l.getUint32(0,!1),a.iv[1]=l.getUint32(4,!1),a.iv[2]=l.getUint32(8,!1),a.iv[3]=l.getUint32(12,!1);for(const e of u.perSubsample){const t=e.length/16;for(let i=0;i<t;i++){const t=e.offset+16*i;a.in.set(r.subarray(t,t+16)),a.decrypt(),o.set(a.out,t)}}}return o},Ur=(e,t,i)=>{const r=[],a=0!==t||0!==i;let s=0;for(const n of e){s+=n.clearLen;const e=[];if(a){let r=n.protectedLen,a=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:a,length:s}),a+=s,r-=s;const n=Math.min(16*i,r);a+=n,r-=n}s+=n.protectedLen}else n.protectedLen>0&&e.push({offset:s,length:n.protectedLen}),s+=n.protectedLen;r.push({perSubsample:e})}return r};var qr,Wr;(Wr=qr||(qr={}))[Wr.EBML=440786851]="EBML",Wr[Wr.EBMLVersion=17030]="EBMLVersion",Wr[Wr.EBMLReadVersion=17143]="EBMLReadVersion",Wr[Wr.EBMLMaxIDLength=17138]="EBMLMaxIDLength",Wr[Wr.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",Wr[Wr.DocType=17026]="DocType",Wr[Wr.DocTypeVersion=17031]="DocTypeVersion",Wr[Wr.DocTypeReadVersion=17029]="DocTypeReadVersion",Wr[Wr.Void=236]="Void",Wr[Wr.Segment=408125543]="Segment",Wr[Wr.SeekHead=290298740]="SeekHead",Wr[Wr.Seek=19899]="Seek",Wr[Wr.SeekID=21419]="SeekID",Wr[Wr.SeekPosition=21420]="SeekPosition",Wr[Wr.Duration=17545]="Duration",Wr[Wr.Info=357149030]="Info",Wr[Wr.TimestampScale=2807729]="TimestampScale",Wr[Wr.MuxingApp=19840]="MuxingApp",Wr[Wr.WritingApp=22337]="WritingApp",Wr[Wr.Tracks=374648427]="Tracks",Wr[Wr.TrackEntry=174]="TrackEntry",Wr[Wr.TrackNumber=215]="TrackNumber",Wr[Wr.TrackUID=29637]="TrackUID",Wr[Wr.TrackType=131]="TrackType",Wr[Wr.FlagEnabled=185]="FlagEnabled",Wr[Wr.FlagDefault=136]="FlagDefault",Wr[Wr.FlagForced=21930]="FlagForced",Wr[Wr.FlagOriginal=21934]="FlagOriginal",Wr[Wr.FlagHearingImpaired=21931]="FlagHearingImpaired",Wr[Wr.FlagVisualImpaired=21932]="FlagVisualImpaired",Wr[Wr.FlagCommentary=21935]="FlagCommentary",Wr[Wr.FlagLacing=156]="FlagLacing",Wr[Wr.Name=21358]="Name",Wr[Wr.Language=2274716]="Language",Wr[Wr.LanguageBCP47=2274717]="LanguageBCP47",Wr[Wr.CodecID=134]="CodecID",Wr[Wr.CodecPrivate=25506]="CodecPrivate",Wr[Wr.CodecDelay=22186]="CodecDelay",Wr[Wr.SeekPreRoll=22203]="SeekPreRoll",Wr[Wr.DefaultDuration=2352003]="DefaultDuration",Wr[Wr.Video=224]="Video",Wr[Wr.PixelWidth=176]="PixelWidth",Wr[Wr.PixelHeight=186]="PixelHeight",Wr[Wr.DisplayWidth=21680]="DisplayWidth",Wr[Wr.DisplayHeight=21690]="DisplayHeight",Wr[Wr.DisplayUnit=21682]="DisplayUnit",Wr[Wr.AlphaMode=21440]="AlphaMode",Wr[Wr.Audio=225]="Audio",Wr[Wr.SamplingFrequency=181]="SamplingFrequency",Wr[Wr.Channels=159]="Channels",Wr[Wr.BitDepth=25188]="BitDepth",Wr[Wr.SimpleBlock=163]="SimpleBlock",Wr[Wr.BlockGroup=160]="BlockGroup",Wr[Wr.Block=161]="Block",Wr[Wr.BlockAdditions=30113]="BlockAdditions",Wr[Wr.BlockMore=166]="BlockMore",Wr[Wr.BlockAdditional=165]="BlockAdditional",Wr[Wr.BlockAddID=238]="BlockAddID",Wr[Wr.BlockDuration=155]="BlockDuration",Wr[Wr.ReferenceBlock=251]="ReferenceBlock",Wr[Wr.Cluster=524531317]="Cluster",Wr[Wr.Timestamp=231]="Timestamp",Wr[Wr.Cues=475249515]="Cues",Wr[Wr.CuePoint=187]="CuePoint",Wr[Wr.CueTime=179]="CueTime",Wr[Wr.CueTrackPositions=183]="CueTrackPositions",Wr[Wr.CueTrack=247]="CueTrack",Wr[Wr.CueClusterPosition=241]="CueClusterPosition",Wr[Wr.Colour=21936]="Colour",Wr[Wr.MatrixCoefficients=21937]="MatrixCoefficients",Wr[Wr.TransferCharacteristics=21946]="TransferCharacteristics",Wr[Wr.Primaries=21947]="Primaries",Wr[Wr.Range=21945]="Range",Wr[Wr.Projection=30320]="Projection",Wr[Wr.ProjectionType=30321]="ProjectionType",Wr[Wr.ProjectionPoseRoll=30325]="ProjectionPoseRoll",Wr[Wr.Attachments=423732329]="Attachments",Wr[Wr.AttachedFile=24999]="AttachedFile",Wr[Wr.FileDescription=18046]="FileDescription",Wr[Wr.FileName=18030]="FileName",Wr[Wr.FileMediaType=18016]="FileMediaType",Wr[Wr.FileData=18012]="FileData",Wr[Wr.FileUID=18094]="FileUID",Wr[Wr.Chapters=272869232]="Chapters",Wr[Wr.Tags=307544935]="Tags",Wr[Wr.Tag=29555]="Tag",Wr[Wr.Targets=25536]="Targets",Wr[Wr.TargetTypeValue=26826]="TargetTypeValue",Wr[Wr.TargetType=25546]="TargetType",Wr[Wr.TagTrackUID=25541]="TagTrackUID",Wr[Wr.TagEditionUID=25545]="TagEditionUID",Wr[Wr.TagChapterUID=25540]="TagChapterUID",Wr[Wr.TagAttachmentUID=25542]="TagAttachmentUID",Wr[Wr.SimpleTag=26568]="SimpleTag",Wr[Wr.TagName=17827]="TagName",Wr[Wr.TagLanguage=17530]="TagLanguage",Wr[Wr.TagString=17543]="TagString",Wr[Wr.TagBinary=17541]="TagBinary",Wr[Wr.ContentEncodings=28032]="ContentEncodings",Wr[Wr.ContentEncoding=25152]="ContentEncoding",Wr[Wr.ContentEncodingOrder=20529]="ContentEncodingOrder",Wr[Wr.ContentEncodingScope=20530]="ContentEncodingScope",Wr[Wr.ContentCompression=20532]="ContentCompression",Wr[Wr.ContentCompAlgo=16980]="ContentCompAlgo",Wr[Wr.ContentCompSettings=16981]="ContentCompSettings",Wr[Wr.ContentEncryption=20533]="ContentEncryption";const Hr=[qr.EBML,qr.Segment],Vr=[qr.SeekHead,qr.Info,qr.Cluster,qr.Tracks,qr.Cues,qr.Attachments,qr.Chapters,qr.Tags],jr=[...Hr,...Vr],Kr=16,Xr=e=>{if(e.remainingLength<1)return null;const t=ac(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength<i?null:i},$r=e=>{if(e.remainingLength<1)return null;const t=ac(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength<i-1)return null;let a=t&r-1;for(let s=1;s<i;s++)a*=256,a+=ac(e);return a},Gr=(e,t)=>{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r<t;r++)i*=256,i+=ac(e);return i},Qr=e=>{const t=Xr(e);if(null===t)return null;if(e.remainingLength<t)return null;return Gr(e,t)},Yr=e=>{if(e.remainingLength<1)return null;if(255===ac(e))return;e.skip(-1);const t=$r(e);return null===t?null:72057594037927940!==t?t:void 0},Jr=e=>{j(e.remainingLength>=2);const t=Qr(e);if(null===t)return null;const i=Yr(e);return null===i?null:{id:t,size:i}},Zr=(e,t)=>{const i=rc(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return String.fromCharCode(...i.subarray(0,r))},ea=(e,t)=>{const i=rc(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return Z.decode(i.subarray(0,r))},ta=(e,t)=>{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?kc(e):yc(e)},ia=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;null===r||s<r;){let t=e.requestSliceRange(s,2,Kr);if(Xe(t)&&(t=await t),!t)break;const i=Jr(t);if(!i)break;if(a.has(i.id))return{pos:s,found:!0};ya(i.size),s=t.filePos+i.size}return{pos:null!==r&&r>s?r:s,found:!1}},ra=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;s<r;){let t=e.requestSliceRange(s,0,Math.min(65536,r-s));if(Xe(t)&&(t=await t),!t)break;if(t.length<8)break;for(let e=0;e<t.length-8;e++){t.filePos=s;const e=Qr(t);if(null!==e&&a.has(e))return s;s++}}return null},aa="V_MPEG4/ISO/AVC",sa="V_MPEGH/ISO/HEVC",na="V_VP8",oa="V_VP9",ca="V_AV1",la="V_PRORES",ua="A_AAC",ha="A_MPEG/L3",da="A_OPUS",fa="A_VORBIS",ma="A_FLAC",pa="A_AC3",ga="A_EAC3",ka="A_DTS";function ya(e){if(void 0===e)throw new Error("Undefined element size is used in a place where it is not supported.")}var ba,wa,Ta,Sa,va,Pa;(wa=ba||(ba={}))[wa.None=0]="None",wa[wa.Xiph=1]="Xiph",wa[wa.FixedSize=2]="FixedSize",wa[wa.Ebml=3]="Ebml",(Sa=Ta||(Ta={}))[Sa.Block=1]="Block",Sa[Sa.Private=2]="Private",Sa[Sa.Next=4]="Next",(Pa=va||(va={}))[Pa.Zlib=0]="Zlib",Pa[Pa.Bzlib=1]="Bzlib",Pa[Pa.lzo1x=2]="lzo1x",Pa[Pa.HeaderStripping=3]="HeaderStripping";const Ia=[{id:qr.SeekHead,flag:"seekHeadSeen"},{id:qr.Info,flag:"infoSeen"},{id:qr.Tracks,flag:"tracksSeen"},{id:qr.Cues,flag:"cuesSeen"}],xa=10485760;class Ca extends ir{constructor(e){super(e),this.readMetadataPromise=null,this.segments=[],this.currentSegment=null,this.currentTrack=null,this.currentCluster=null,this.currentBlock=null,this.currentBlockAdditional=null,this.currentCueTime=null,this.currentDecodingInstruction=null,this.currentTagTargetIsMovie=!0,this.currentSimpleTagName=null,this.currentAttachedFile=null,this.isWebM=!1,this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.segments.flatMap(e=>e.tracks.map(e=>e.trackBacking))}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>"video"===e.info?.type)),hasAudio:this.segments.some(e=>e.tracks.some(e=>"audio"===e.info?.type)),codecStrings:t.filter(Boolean)})}async getMetadataTags(){await this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&await this.loadSegmentMetadata(t),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e={...e,...t.metadataTags};return e}readMetadata(){return this.readMetadataPromise??(this.readMetadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,Kr);if(Xe(t)&&(t=await t),!t)break;const i=Jr(t);if(!i)break;const r=i.id;let a=i.size;const s=t.filePos;if(r===qr.EBML){ya(a);let e=this.reader.requestSlice(s,a);if(Xe(e)&&(e=await e),!e)break;this.readContiguousElements(e)}else if(r===qr.Segment){if(await this.readSegment(s,a),void 0===a)break;if(null===this.reader.fileSize)break}else if(r===qr.Cluster){if(null===this.reader.fileSize)break;if(void 0===a){a=(await ia(this.reader,s,jr,this.reader.fileSize)).pos-s}const e=X(this.segments);e&&(e.elementEndPos=s+a)}ya(a),e=s+a}})())}async readSegment(e,t){this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let i=e;for(;null===this.currentSegment.elementEndPos||i<this.currentSegment.elementEndPos;){let e=this.reader.requestSliceRange(i,2,Kr);if(Xe(e)&&(e=await e),!e)break;const t=i,r=Jr(e);if(!r||!Vr.includes(r.id)&&r.id!==qr.Void){const e=await ra(this.reader,t,Vr,Math.min(this.currentSegment.elementEndPos??1/0,t+xa));if(e){i=e;continue}break}const{id:a,size:s}=r,n=e.filePos,o=Ia.findIndex(e=>e.id===a);if(-1!==o){const e=Ia[o].flag;this.currentSegment[e]=!0,ya(s);let t=this.reader.requestSlice(n,s);Xe(t)&&(t=await t),t&&this.readContiguousElements(t)}else if(a===qr.Tags||a===qr.Attachments){a===qr.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,ya(s);let e=this.reader.requestSlice(n,s);Xe(e)&&(e=await e),e&&this.readContiguousElements(e)}else if(a===qr.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===s)break;i=n+s}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const n of this.currentSegment.seekEntries){const t=Ia.find(e=>e.id===n.id);if(!t)continue;if(this.currentSegment[t.flag])continue;let i=this.reader.requestSliceRange(e+n.segmentPosition,2,Kr);if(Xe(i)&&(i=await i),!i)continue;const r=Jr(i);if(!r)continue;const{id:a,size:s}=r;if(a!==t.id)continue;ya(s),this.currentSegment[t.flag]=!0;let o=this.reader.requestSlice(i.filePos,s);Xe(o)&&(o=await o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const n of this.currentSegment.tracks)null!==n.defaultDurationNs&&(n.defaultDuration=this.currentSegment.timestampFactor*n.defaultDurationNs/1e9);const r=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const n of this.currentSegment.cuePoints){const e=r.get(n.trackId);e&&e.cuePoints.push(n)}for(const n of this.currentSegment.tracks){n.cuePoints.sort((e,t)=>e.time-t.time);for(let e=0;e<n.cuePoints.length-1;e++){const t=n.cuePoints[e],i=n.cuePoints[e+1];t.time===i.time&&(n.cuePoints.splice(e+1,1),e--)}}let a=null,s=-1/0;for(const n of this.currentSegment.tracks)n.cuePoints.length>s&&(s=n.cuePoints.length,a=n);for(const n of this.currentSegment.tracks)0===n.cuePoints.length&&(n.cuePoints=a.cuePoints);this.currentSegment=null}async readCluster(e,t){if(t.lastReadCluster?.elementStartPos===e)return t.lastReadCluster;let i=this.reader.requestSliceRange(e,2,Kr);Xe(i)&&(i=await i),j(i);const r=e,a=Jr(i);j(a);j(a.id===qr.Cluster);let s=a.size;const n=i.filePos;if(void 0===s){s=(await ia(this.reader,n,jr,t.elementEndPos)).pos-n}let o=this.reader.requestSlice(n,s);Xe(o)&&(o=await o);const c={segment:t,elementStartPos:r,elementEndPos:n+s,dataStartPos:n,timestamp:-1,trackData:new Map};if(this.currentCluster=c,o){const e=this.readContiguousElements(o,jr);c.elementEndPos=e}for(const[,l]of c.trackData){const e=l.track;j(l.blocks.length>0);let t=!1;for(let r=0;r<l.blocks.length;r++){const e=l.blocks[r];e.timestamp+=c.timestamp,t||(t=e.lacing!==ba.None)}l.presentationTimestamps=l.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let r=0;r<l.presentationTimestamps.length;r++){const t=l.presentationTimestamps[r],i=l.blocks[t.blockIndex];if(null===l.firstKeyFrameTimestamp&&i.isKeyFrame&&(l.firstKeyFrameTimestamp=i.timestamp),r<l.presentationTimestamps.length-1){const e=l.presentationTimestamps[r+1];i.duration=e.timestamp-i.timestamp}else 0===i.duration&&null!=e.defaultDuration&&i.lacing===ba.None&&(i.duration=e.defaultDuration)}t&&(this.expandLacedBlocks(l.blocks,e),l.presentationTimestamps=l.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const i=l.blocks[l.presentationTimestamps[0].blockIndex],a=l.blocks[X(l.presentationTimestamps).blockIndex];l.startTimestamp=i.timestamp,l.endTimestamp=a.timestamp+a.duration;const s=pe(e.clusterPositionCache,l.startTimestamp,e=>e.startTimestamp);-1!==s&&e.clusterPositionCache[s].elementStartPos===r||e.clusterPositionCache.splice(s+1,0,{elementStartPos:c.elementStartPos,startTimestamp:l.startTimestamp})}return t.lastReadCluster=c,c}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){for(let i=0;i<e.length;i++){const r=e[i];if(r.lacing===ba.None)continue;r.decoded||(r.data=this.decodeBlockData(t,r.data),r.decoded=!0);const a=tc.tempFromBytes(r.data),s=[],n=ac(a)+1;switch(r.lacing){case ba.Xiph:{let e=0;for(let t=0;t<n-1;t++){let t=0;for(;a.bufferPos<a.length;){const i=ac(a);if(t+=i,i<255){s.push(t),e+=t;break}}}s.push(a.length-(a.bufferPos+e))}break;case ba.FixedSize:{const e=a.length-1,t=Math.floor(e/n);for(let i=0;i<n;i++)s.push(t)}break;case ba.Ebml:{const e=$r(a);j(null!==e);let t=e;s.push(t);let i=t;for(let r=1;r<n-1;r++){const e=a.bufferPos,r=$r(a);j(null!==r);t+=r-((1<<7*(a.bufferPos-e)-1)-1),s.push(t),i+=t}s.push(a.length-(a.bufferPos+i))}break;default:j(!1)}j(s.length===n),e.splice(i,1);const o=r.duration||n*(t.defaultDuration??0);for(let t=0;t<n;t++){const c=s[t],l=rc(a,c),u=r.timestamp+o*t/n,h=o/n;e.splice(i+t,0,{timestamp:u,duration:h,isKeyFrame:r.isKeyFrame,data:l,lacing:ba.None,decoded:!0,postProcessed:!1,mainAdditional:r.mainAdditional})}i+=n,i--}}async loadSegmentMetadata(e){for(const t of e.seekEntries){if(t.id!==qr.Tags||e.tagsSeen){if(t.id!==qr.Attachments||e.attachmentsSeen)continue}else;let i=this.reader.requestSliceRange(e.dataStartPos+t.segmentPosition,2,Kr);if(Xe(i)&&(i=await i),!i)continue;const r=Jr(i);if(!r||r.id!==t.id)continue;const{size:a}=r;ya(a),j(!this.currentSegment),this.currentSegment=e;let s=this.reader.requestSlice(i.filePos,a);Xe(s)&&(s=await s),s&&this.readContiguousElements(s),this.currentSegment=null,t.id===qr.Tags?e.tagsSeen=!0:t.id===qr.Attachments&&(e.attachmentsSeen=!0)}}readContiguousElements(e,t){for(;e.remainingLength>=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){const i=Jr(e);if(!i)return!1;if(t&&t.includes(i.id))return!1;const{id:r,size:a}=i,s=e.filePos;switch(ya(a),r){case qr.DocType:this.isWebM="webm"===Zr(e,a);break;case qr.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(s,a)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case qr.SeekID:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=Gr(e,a)}break;case qr.SeekPosition:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=Gr(e,a)}break;case qr.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=Gr(e,a),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case qr.Duration:if(!this.currentSegment)break;this.currentSegment.duration=ta(e,a);break;case qr.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:{...ht,primary:!1},trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(s,a)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>"decompress"!==e.data?.type||e.scope!==Ta.Block||e.data.algorithm!==va.HeaderStripping)&&(ct._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===aa)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===sa)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===na)this.currentTrack.info.codec="vp8";else if(t===oa)this.currentTrack.info.codec="vp9";else if(t===ca)this.currentTrack.info.codec="av1";else if(t===la){const e=this.currentTrack.codecPrivate?Z.decode(this.currentTrack.codecPrivate):"";Oi.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new Ea(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===ua?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===ha?this.currentTrack.info.codec="mp3":t===da?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=Wi):t===fa?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===ma?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===pa?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===ga?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===ka?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new _a(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case qr.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=Gr(e,a);break;case qr.TrackType:{if(!this.currentTrack)break;const t=Gr(e,a);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:{...ce},alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case qr.FlagEnabled:if(!this.currentTrack)break;Gr(e,a)||(this.currentTrack=null);break;case qr.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!Gr(e,a);break;case qr.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!Gr(e,a);break;case qr.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!Gr(e,a);break;case qr.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!Gr(e,a);break;case qr.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!Gr(e,a);break;case qr.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!Gr(e,a);break;case qr.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=Zr(e,a);break;case qr.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=rc(e,a);break;case qr.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=Gr(e,a);break;case qr.Name:if(!this.currentTrack)break;this.currentTrack.name=ea(e,a);break;case qr.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=Zr(e,a),Ae(this.currentTrack.languageCode)||(this.currentTrack.languageCode=xe);break;case qr.LanguageBCP47:{if(!this.currentTrack)break;const t=Zr(e,a).split("-")[0];this.currentTrack.languageCode=t||xe,this.currentTrack.hasLanguageBcp47=!0}break;case qr.Video:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.PixelWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.width=Gr(e,a);break;case qr.PixelHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.height=Gr(e,a);break;case qr.DisplayWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayWidth=Gr(e,a);break;case qr.DisplayHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayHeight=Gr(e,a);break;case qr.DisplayUnit:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayUnit=Gr(e,a);break;case qr.AlphaMode:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.alphaMode=1===Gr(e,a);break;case qr.Colour:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.MatrixCoefficients:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a),i=ne[t];this.currentTrack.info.colorSpace.matrix=i}break;case qr.Range:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case qr.TransferCharacteristics:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a),i=ae[t];this.currentTrack.info.colorSpace.transfer=i}break;case qr.Primaries:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a),i=ie[t];this.currentTrack.info.colorSpace.primaries=i}break;case qr.Projection:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.ProjectionPoseRoll:{if("video"!==this.currentTrack?.info?.type)break;const t=-ta(e,a);try{this.currentTrack.info.rotation=K(t)}catch{}}break;case qr.Audio:if("audio"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.SamplingFrequency:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.sampleRate=ta(e,a);break;case qr.Channels:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.numberOfChannels=Gr(e,a);break;case qr.BitDepth:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.bitDepth=Gr(e,a);break;case qr.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(s,a)),this.currentCueTime=null;break;case qr.CueTime:this.currentCueTime=Gr(e,a);break;case qr.CueTrackPositions:{if(null===this.currentCueTime)break;j(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(s,a)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case qr.CueTrack:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=Gr(e,a)}break;case qr.CueClusterPosition:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;j(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+Gr(e,a)}break;case qr.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=Gr(e,a);break;case qr.SimpleBlock:{if(!this.currentCluster)break;const t=$r(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=cc(e),n=ac(e),o=n>>1&3;let c=!!(128&n);"audio"===i.track.info?.type&&i.track.info.codec&&(c=!0);const l=rc(e,a-(e.filePos-s)),u=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:c,data:l,lacing:o,decoded:!u,postProcessed:!1,mainAdditional:null})}break;case qr.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(s,a)),this.currentBlock=null;break;case qr.Block:{if(!this.currentCluster)break;const t=$r(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=cc(e),n=ac(e)>>1&3,o=rc(e,a-(e.filePos-s)),c=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:o,lacing:n,decoded:!c,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case qr.BlockAdditions:this.readContiguousElements(e.slice(s,a));break;case qr.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(s,a)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case qr.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=rc(e,a);break;case qr.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=Gr(e,a);break;case qr.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=Gr(e,a);break;case qr.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case qr.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(s,a));break;case qr.Targets:this.readContiguousElements(e.slice(s,a));break;case qr.TargetTypeValue:50!==Gr(e,a)&&(this.currentTagTargetIsMovie=!1);break;case qr.TagTrackUID:case qr.TagEditionUID:case qr.TagChapterUID:case qr.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case qr.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(s,a));break;case qr.TagName:this.currentSimpleTagName=ea(e,a);break;case qr.TagString:{if(!this.currentSimpleTagName)break;const t=ea(e,a);this.processTagValue(this.currentSimpleTagName,t)}break;case qr.TagBinary:{if(!this.currentSimpleTagName)break;const t=rc(e,a);this.processTagValue(this.currentSimpleTagName,t)}break;case qr.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(s,a));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(t.raw??(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new ut(this.currentAttachedFile.fileData,this.currentAttachedFile.fileMediaType??void 0,this.currentAttachedFile.fileName??void 0,this.currentAttachedFile.fileDescription??void 0)),this.currentAttachedFile.fileMediaType?.startsWith("image/")&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}t.images??(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:this.currentAttachedFile.fileName??void 0,description:this.currentAttachedFile.fileDescription??void 0})}this.currentAttachedFile=null}break;case qr.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=0n;for(let r=0;r<t;r++)i<<=8n,i+=BigInt(ac(e));return i})(e,a);break;case qr.FileName:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=ea(e,a);break;case qr.FileMediaType:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=Zr(e,a);break;case qr.FileData:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=rc(e,a);break;case qr.FileDescription:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=ea(e,a);break;case qr.ContentEncodings:if(!this.currentTrack)break;this.readContiguousElements(e.slice(s,a)),this.currentTrack.decodingInstructions.sort((e,t)=>t.order-e.order);break;case qr.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Ta.Block,data:null},this.readContiguousElements(e.slice(s,a)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case qr.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=Gr(e,a);break;case qr.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=Gr(e,a);break;case qr.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:va.Zlib,settings:null},this.readContiguousElements(e.slice(s,a));break;case qr.ContentCompAlgo:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.algorithm=Gr(e,a);break;case qr.ContentCompSettings:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.settings=rc(e,a);break;case qr.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=s+a,!0}decodeBlockData(e,t){j(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(j(r.data),"decompress"===r.data.type)if(r.data.algorithm===va.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i;if(!this.currentSegment?.metadataTags)return;const r=this.currentSegment.metadataTags;if(r.raw??(r.raw={}),(i=r.raw)[e]??(i[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":r.title??(r.title=t);break;case"description":r.description??(r.description=t);break;case"artist":r.artist??(r.artist=t);break;case"album":r.album??(r.album=t);break;case"album_artist":r.albumArtist??(r.albumArtist=t);break;case"genre":r.genre??(r.genre=t);break;case"comment":r.comment??(r.comment=t);break;case"lyrics":r.lyrics??(r.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||(r.date??(r.date=e))}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.trackNumber??(r.trackNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.tracksTotal??(r.tracksTotal=a))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.discNumber??(r.discNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.discsTotal??(r.discsTotal=a))}}}async getDurationFromMetadata(e){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){j(r.trackBacking);const e=await r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(t??1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=t??0,i}}class Ba{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)}async getLiveRefreshInterval(){return null}async getFirstPacket(e){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)}intoTimescale(e){return Ce(e*this.internalTrack.segment.timestampFactor)}async getPacket(e,t){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=pe(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)}async getNextPacket(e,t){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1<t.blocks.length)return{blockIndex:i.blockIndex+1,correctBlockFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{blockIndex:0,correctBlockFound:!0}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)}async getKeyPacket(e,t){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=we(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)}async getNextKeyPacket(e,t){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return j(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)}async fetchPacketInCluster(e,t,i){if(-1===t)return null;const r=e.trackData.get(this.internalTrack.id).blocks[t];if(j(r),r.decoded||(r.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,r.data),r.decoded=!0),!r.postProcessed){if("prores"===this.internalTrack.info?.codec){if(!(r.data.length>=8&&105===r.data[4]&&99===r.data[5]&&112===r.data[6]&&102===r.data[7])){const e=new Uint8Array(r.data.length+8);J(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(r.data,8),r.data=e}}r.postProcessed=!0}const a=i.metadataOnly?rr:r.data,s=r.timestamp/this.internalTrack.segment.timestampFactor,n=r.duration/this.internalTrack.segment.timestampFactor,o={};r.mainAdditional&&"video"===this.internalTrack.info?.type&&this.internalTrack.info.alphaMode&&(o.alpha=i.metadataOnly?rr:r.mainAdditional,o.alphaByteLength=r.mainAdditional.byteLength);const c=new ar(a,r.isKeyFrame?"key":"delta",s,n,e.dataStartPos+t,r.data.byteLength,o);return this.packetToClusterLocation.set(c,{cluster:e,blockIndex:t}),c}async performClusterLookup(e,t,i,r,a){const{demuxer:s,segment:n}=this.internalTrack;let o=null,c=null,l=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,a);-1!==i&&(c=e,l=i)}const u=pe(this.internalTrack.cuePoints,i,e=>e.time),h=-1!==u?this.internalTrack.cuePoints[u]:null,d=pe(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),f=-1!==d?this.internalTrack.clusterPositionCache[d]:null,m=Math.max(h?.clusterPosition??0,f?.elementStartPos??0)||null;let p;for(e?null===m||e.elementStartPos>=m?(p=e.elementEndPos,o=e):p=m:p=m??n.clusterSeekStartPos;null===n.elementEndPos||p<=n.elementEndPos-2;){if(o){const e=o.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=s.reader.requestSliceRange(p,2,Kr);if(Xe(e)&&(e=await e),!e)break;const i=p,u=Jr(e);if(!u||!Vr.includes(u.id)&&u.id!==qr.Void){const e=await ra(s.reader,i,Vr,Math.min(n.elementEndPos??1/0,i+xa));if(e){p=e;continue}break}const h=u.id;let d=u.size;const f=e.filePos;if(h===qr.Cluster){o=await s.readCluster(i,n),d=o.elementEndPos-f;const{blockIndex:e,correctBlockFound:r}=t(o);if(r)return this.fetchPacketInCluster(o,e,a);-1!==e&&(c=o,l=e)}if(void 0===d){j(h!==qr.Cluster);d=(await ia(s.reader,f,jr,n.elementEndPos)).pos-f}const m=f+d;if(null===n.elementEndPos){let e=s.reader.requestSliceRange(m,2,Kr);if(Xe(e)&&(e=await e),!e)break;if(Qr(e)===qr.Segment){n.elementEndPos=m;break}}p=m}if(h&&(!c||c.elementStartPos<h.clusterPosition)){const e=this.internalTrack.cuePoints[u-1];j(!e||e.time<h.time);const i=e?.time??-1/0;return this.performClusterLookup(null,t,i,r,a)}return c?this.fetchPacketInCluster(c,l,a):null}}class Ea extends Ba{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.info.rotation}async getColorSpace(){const e=await this.getDecoderConfig();return e?{primaries:e.colorSpace?.primaries,transfer:e.colorSpace?.transfer,matrix:e.colorSpace?.matrix,fullRange:e.colorSpace?.fullRange}:this.internalTrack.info.colorSpace}async canBeTransparent(){return this.internalTrack.info.alphaMode||"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{var e,t,i,r;let a=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(a=await this.getFirstPacket({}));const s={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&a?Ft(a.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&a?Wt(a.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&a?ei(a.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&a?ii(a.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&a?ri(a.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!oe(this.internalTrack.info.colorSpace)){const a=Ui(s);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const n={codec:zi(s),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(n.displayAspectWidth=this.internalTrack.info.squarePixelWidth,n.displayAspectHeight=this.internalTrack.info.squarePixelHeight),n})()):null}}class _a extends Ba{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&xi(e.data)}return{codec:qi({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Ra=async(e,t,i,r=null)=>{let a=t;for(;null===i||a<i;){const t=null!==i?Math.min(65536,i-a):65536;let s=e.requestSliceRange(a,4,t);if(Xe(s)&&(s=await s),!s||s.length<4)break;for(;s.remainingLength>=4;){const t=s.filePos,i=uc(s),n=null!==e.fileSize?e.fileSize-a:null,o=Yi(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&tr(o.header.channel)===tr(r.channel)))return{header:o.header,startPos:a};s.filePos=t+o.bytesAdvanced,a=s.filePos}}return null};class Fa extends ir{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new ue,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new Aa(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,xc);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=_c(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=await Ra(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=Qi(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(Xe(r)&&(r=await r),r){const a=uc(r);if(a===$i||a===Gi){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(Xe(t)&&(t=await t),t){const e=rc(t,12),i=J(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&Zi.FrameCount?i.getUint32(4,!1):null,fileSize:r&Zi.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const a=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:a,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame}async getMimeType(){return"audio/mpeg"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=!0;let a=this.reader.requestSlice(i.filePos,r.size);if(Xe(a)&&(a=await a),!a)break;Rc(a,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=Ic){let e=this.reader.requestSlice(this.reader.fileSize-Ic,Ic);Xe(e)&&(e=await e),j(e);"TAG"===bc(e,3)&&Bc(e,this.metadataTags)}return this.metadataTags}finally{e()}}}class Aa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return j(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.demuxer;if(j(null!==e.firstFrameHeader),j(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,a=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(a<<t):2===i?144*r/a:12*r/a*4),n=(e.reader.fileSize-e.firstFrameHeaderPos)/s;return Math.round(n)*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}var t,i,r,a;return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return xe}getCodec(){return"mp3"}getInternalCodecId(){return null}getNumberOfChannels(){return j(this.demuxer.firstFrameHeader),tr(this.demuxer.firstFrameHeader.channel)}getSampleRate(){return j(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}getDisposition(){return{...ht}}async getDecoderConfig(){return j(this.demuxer.firstFrameHeader),{codec:"mp3",numberOfChannels:tr(this.demuxer.firstFrameHeader.channel),sampleRate:this.demuxer.firstFrameHeader.sampleRate}}async getPacketAtIndex(e,t){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=rr;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Xe(e)&&(e=await e),!e)return null;r=rc(e,i.dataSize)}return new ar(r,"key",i.timestamp,i.duration,e,i.dataSize)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=me(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=pe(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);await this.demuxer.advanceReader()}}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Ma=1399285583,Da=new Uint32Array(256);for(let ul=0;ul<256;ul++){let e=ul<<24;for(let t=0;t<8;t++)e=2147483648&e?e<<1^79764919:e<<1;Da[ul]=e>>>0&4294967295}const Na=e=>{const t=J(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let a=0;a<e.length;a++){const t=e[a];r=(r<<8^Da[r>>>24^t])>>>0}return t.setUint32(22,i,!0),r},Oa=(e,t,i)=>{let r=0,a=null;if(e.length>0)if("vorbis"===t.codec){j(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,n=(e[0]&s)>>1;if(n>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let o=i;const c=t.vorbisInfo.modeBlockflags[n];if(a=t.vorbisInfo.blocksizes[c],1===c){const i=1+(1|s),r=e[0]&i?1:0;o=t.vorbisInfo.blocksizes[r]}r=null!==o?o+a>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:ai[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:a}},La=27,za=282,Ua=e=>{const t=e.filePos;if(hc(e)!==Ma)return null;e.skip(1);const i=ac(e),r=gc(e),a=hc(e),s=hc(e),n=hc(e),o=ac(e),c=new Uint8Array(o);for(let h=0;h<o;h++)c[h]=ac(e);const l=27+o,u=c.reduce((e,t)=>e+t,0);return{headerStartPos:t,totalSize:l+u,dataStartPos:t+l,dataSize:u,headerType:i,granulePosition:r,serialNumber:a,sequenceNumber:s,checksum:n,lacingValues:c}},qa=(e,t)=>{for(;e.filePos<t-3;){const t=hc(e),i=79;if((255&t)===i||(t>>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===Ma)return!0;e.skip(1)}}return!1};class Wa extends ir{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,La,za);if(Xe(t)&&(t=await t),!t)break;const i=Ua(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=await this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?await this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&await this.readOpusMetadata(e,t),null!==t.codecInfo.codec&&this.trackBackings.push(new Ha(t,this)))}})())}async readVorbisMetadata(e,t){let i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=await this.findNextPacketStart(r),!i)return;const a=await this.readPacket(i.startPage,i.startSegmentIndex);if(!a)return;if(3!==r.data[0]||5!==a.data[0])return;const s=[],n=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};n(e.data.length),n(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+a.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(a.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=a;const c=J(e.data);t.numberOfChannels=c.getUint8(11),t.sampleRate=c.getUint32(12,!0);const l=c.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&l),1<<(l>>4)],modeBlockflags:si(a.data).modeBlockflags},li(r.data.subarray(7),this.metadataTags)}async readOpusMetadata(e,t){const i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const a=(e=>{const t=J(e),i=t.getUint8(9),r=t.getUint16(10,!0),a=t.getUint32(12,!0),s=t.getInt16(16,!0),n=t.getUint8(18);let o=null;return n&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:a,outputGain:s,channelMappingFamily:n,channelMappingTable:o}})(e.data);t.numberOfChannels=a.outputChannelCount,t.sampleRate=Wi,t.codecInfo.opusInfo={preSkip:a.preSkip},li(r.data.subarray(8),this.metadataTags)}async readPacket(e,t){j(t<e.lacingValues.length);let i=0;for(let u=0;u<t;u++)i+=e.lacingValues[u];let r=e,a=i,s=t;const n=[];e:for(;;){let t=this.reader.requestSlice(r.dataStartPos,r.dataSize);Xe(t)&&(t=await t),j(t);const o=rc(t,r.dataSize);for(;;){if(s===r.lacingValues.length){n.push(o.subarray(i,a));break}const e=r.lacingValues[s];if(a+=e,e<255){n.push(o.subarray(i,a));break e}s++}let c=r.headerStartPos+r.totalSize;for(;;){let t=this.reader.requestSliceRange(c,La,za);if(Xe(t)&&(t=await t),!t)return null;const i=Ua(t);if(!i)return null;if(r=i,r.serialNumber===e.serialNumber)break;c=r.headerStartPos+r.totalSize}i=0,a=0,s=0}const o=n.reduce((e,t)=>e+t.length,0);if(0===o)return null;const c=new Uint8Array(o);let l=0;for(let u=0;u<n.length;u++){const e=n[u];c.set(e,l),l+=e.length}return{data:c,endPage:r,endSegmentIndex:s}}async findNextPacketStart(e){if(e.endSegmentIndex<e.endPage.lacingValues.length-1)return{startPage:e.endPage,startSegmentIndex:e.endSegmentIndex+1};if(!!(4&e.endPage.headerType))return null;let t=e.endPage.headerStartPos+e.endPage.totalSize;for(;;){let i=this.reader.requestSliceRange(t,La,za);if(Xe(i)&&(i=await i),!i)return null;const r=Ua(i);if(!r)return null;if(r.serialNumber===e.endPage.serialNumber)return{startPage:r,startSegmentIndex:0};t=r.headerStartPos+r.totalSize}}async getMimeType(){await this.readMetadata();return(e=>{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(await Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)))).filter(Boolean)})}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}class Ha{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new ue,this.internalSampleRate="opus"===e.codecInfo.codec?Wi:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return j(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}async getDecoderConfig(){return j(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:this.bitstream.description??void 0}}getName(){return null}getLanguageCode(){return xe}getDisposition(){return{...ht,primary:!1}}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(j(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:a}=Oa(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new ar(i.metadataOnly?rr:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:a}),s}async getFirstPacket(e){j(this.bitstream.lastMetadataPacket);const t=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(j(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=await this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)}async getNextPacket(e,t){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=await this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const a=i.timestampInSamples+i.durationInSamples,s=await this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:a,vorbisLastBlocksize:i.vorbisBlockSize},t)}async getPacket(e,t){if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const i=Ce(e*this.internalSampleRate);if(0===i)return this.getFirstPacket(t);if(i<0)return null;j(this.bitstream.lastMetadataPacket);const r=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!r)return null;let a=r.startPage,s=this.demuxer.reader.fileSize;const n=[a];e:for(;a.headerStartPos+a.totalSize<s;){const e=a.headerStartPos,t=Math.floor((e+s)/2);let r=t;for(;;){const e=Math.min(r+65307,s-La);let o=this.demuxer.reader.requestSlice(r,e-r);Xe(o)&&(o=await o),j(o);if(!qa(o,e)){s=t+La;continue e}let c=this.demuxer.reader.requestSliceRange(o.filePos,La,za);Xe(c)&&(c=await c),j(c);const l=Ua(c);j(l);let u=!1;if(l.serialNumber===this.bitstream.serialNumber)u=!0;else{let e=this.demuxer.reader.requestSlice(l.headerStartPos,l.totalSize);Xe(e)&&(e=await e),j(e);const t=rc(e,l.totalSize);u=Na(t)===l.checksum}if(!u){r=l.headerStartPos+4;continue}if(u&&l.serialNumber!==this.bitstream.serialNumber){r=l.headerStartPos+l.totalSize;continue}if(!(-1===l.granulePosition)){this.granulePositionToTimestampInSamples(l.granulePosition)>i?s=l.headerStartPos:(a=l,n.push(l));continue e}r=l.headerStartPos+l.totalSize}}let o=r.startPage;for(const k of n){if(k.granulePosition===a.granulePosition)break;(!o||k.headerStartPos>o.headerStartPos)&&(o=k)}let c=o;const l=[c];for(;c.serialNumber!==this.bitstream.serialNumber||c.granulePosition!==a.granulePosition;){const e=c.headerStartPos+c.totalSize;let t=this.demuxer.reader.requestSliceRange(e,La,za);Xe(t)&&(t=await t),j(t);const i=Ua(t);j(i),c=i,c.serialNumber===this.bitstream.serialNumber&&l.push(c)}j(-1!==c.granulePosition);let u,h,d=null,f=c,m=0;if(c.headerStartPos===r.startPage.headerStartPos)u=this.granulePositionToTimestampInSamples(0),h=!0,d=0;else{u=0,h=!1;for(let t=c.lacingValues.length-1;t>=0;t--){if(c.lacingValues[t]<255){d=t+1;break}}if(null===d)throw new Error("Invalid page with granule position: no packets end on this page.");m=d-1;const e={data:rr,endPage:f,endSegmentIndex:m};if(await this.demuxer.findNextPacketStart(e)){const e=ja(l,c,d);j(e);const t=Va(l,e.page,e.segmentIndex);t&&(c=t.page,d=t.segmentIndex)}else for(;;){const e=ja(l,c,d);if(!e)break;const t=Va(l,e.page,e.segmentIndex);if(!t)break;if(c=t.page,d=t.segmentIndex,e.page.headerStartPos!==f.headerStartPos){f=e.page,m=e.segmentIndex;break}}}let p=null,g=null;for(;null!==c;){j(null!==d);const e=await this.demuxer.readPacket(c,d);if(!e)break;if(!(c.headerStartPos===r.startPage.headerStartPos&&d<r.startSegmentIndex)){let r=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:u,vorbisLastBlocksize:g?.vorbisBlockSize??null},t);j(r);let a=this.encodedPacketToMetadata.get(r);if(j(a),h||e.endPage.headerStartPos!==f.headerStartPos||e.endSegmentIndex!==m?u+=a.durationInSamples:(u=this.granulePositionToTimestampInSamples(c.granulePosition),h=!0,r=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:u-a.durationInSamples,vorbisLastBlocksize:g?.vorbisBlockSize??null},t),j(r),a=this.encodedPacketToMetadata.get(r),j(a)),p=r,g=a,h&&(Math.max(u,0)>i||Math.max(a.timestampInSamples,0)===i))break}const a=await this.demuxer.findNextPacketStart(e);if(!a)break;c=a.startPage,d=a.startSegmentIndex}return p}async getPacketSequential(e,t){const i=await this.sequentialScanMutex.acquire();try{const i=Ce(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=pe(this.sequentialScanCache,i,e=>e.timestampInSamples);let a;if(-1!==r){const e=this.sequentialScanCache[r];a=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else a=await this.getFirstPacket(t);let s=0;for(;a&&a.timestamp<e;){const i=await this.getNextPacket(a,t);if(!i||i.timestamp>e)break;if(a=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(a);j(e),this.sequentialScanCache.length>0&&j(X(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return a}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Va=(e,t,i)=>{let r=t,a=i;e:for(;;){for(a--;a>=0;a--){if(r.lacingValues[a]<255){a++;break e}}j(-1===a);if(!(1&r.headerType)){a=0;break}const t=be(e,e=>e.headerStartPos<r.headerStartPos);if(!t)return null;r=t,a=r.lacingValues.length}if(j(-1!==a),a===r.lacingValues.length){const t=e[e.indexOf(r)+1];j(t),r=t,a=0}return{page:r,segmentIndex:a}},ja=(e,t,i)=>{if(i>0)return{page:t,segmentIndex:i-1};const r=be(e,e=>e.headerStartPos<t.headerStartPos);return r?{page:r,segmentIndex:r.lacingValues.length-1}:null};var Ka,Xa;(Xa=Ka||(Ka={}))[Xa.PCM=1]="PCM",Xa[Xa.IEEE_FLOAT=3]="IEEE_FLOAT",Xa[Xa.ALAW=6]="ALAW",Xa[Xa.MULAW=7]="MULAW",Xa[Xa.EXTENSIBLE=65534]="EXTENSIBLE";class $a extends ir{constructor(e){super(e),this.metadataPromise=null,this.dataStart=-1,this.dataSize=-1,this.audioInfo=null,this.trackBackings=[],this.lastKnownPacketIndex=0,this.metadataTags={},this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=this.reader.requestSlice(0,12);Xe(e)&&(e=await e),j(e);const t=bc(e,4),i="RIFX"!==t,r="RF64"===t,a=lc(e,i);let s=r?this.reader.fileSize:Math.min(a+8,this.reader.fileSize??1/0);if("WAVE"!==bc(e,4))throw new Error("Invalid WAVE file - wrong format");let n=0,o=null,c=e.filePos;for(;null===s||c<s;){let e=this.reader.requestSlice(c,8);if(Xe(e)&&(e=await e),!e)break;const t=bc(e,4),a=lc(e,i),l=e.filePos;if(r&&0===n&&"ds64"!==t)throw new Error('Invalid RF64 file: First chunk must be "ds64".');if("fmt "===t)await this.parseFmtChunk(l,a,i);else if("data"===t){if(o??(o=a),this.dataStart=e.filePos,this.dataSize=Math.min(o,(s??1/0)-this.dataStart),null===this.reader.fileSize)break}else if("ds64"===t){let e=this.reader.requestSlice(l,a);if(Xe(e)&&(e=await e),!e)break;const t=fc(e,i);o=fc(e,i),s=Math.min(t+8,this.reader.fileSize??1/0)}else"LIST"===t?await this.parseListChunk(l,a,i):"ID3 "!==t&&"id3 "!==t||await this.parseId3Chunk(l,a);c=l+a+(1&a),n++}if(!this.audioInfo)throw new Error('Invalid WAVE file - missing "fmt " chunk');if(-1===this.dataStart)throw new Error('Invalid WAVE file - missing "data" chunk');const l=this.audioInfo.blockSizeInBytes;this.dataSize=Math.floor(this.dataSize/l)*l,this.trackBackings.push(new Qa(this))})())}async parseFmtChunk(e,t,i){let r=this.reader.requestSlice(e,t);if(Xe(r)&&(r=await r),!r)return;let a=sc(r,i);const s=sc(r,i),n=lc(r,i);r.skip(4);const o=sc(r,i);let c;if(c=14===t?8:sc(r,i),t>=18&&357!==a){const e=sc(r,i),s=t-18;if(Math.min(s,e)>=22&&a===Ka.EXTENSIBLE){r.skip(6);const e=rc(r,16);a=e[0]|e[1]<<8}}if(a!==Ka.MULAW&&a!==Ka.ALAW||(c=8),a!==Ka.PCM&&a!==Ka.IEEE_FLOAT&&a!==Ka.ALAW&&a!==Ka.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${a}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(a===Ka.PCM&&![8,16,24,32].includes(c))throw new Error(`Unsupported WAVE PCM bit depth (${c}). Only 8, 16, 24, and 32 bits are supported.`);if(a===Ka.IEEE_FLOAT&&![32,64].includes(c))throw new Error(`Unsupported WAVE float bit depth (${c}). Only 32 and 64 bits are supported.`);this.audioInfo={format:a,numberOfChannels:s,sampleRate:n,sampleSizeInBytes:Math.ceil(c/8),blockSizeInBytes:o}}async parseListChunk(e,t,i){var r,a,s,n,o,c,l,u,h,d,f;let m=this.reader.requestSlice(e,t);if(Xe(m)&&(m=await m),!m)return;const p=bc(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=bc(m,4),t=lc(m,i),p=rc(m,t);let k=0;for(let i=0;i<p.length&&0!==p[i];i++)k++;const y=String.fromCharCode(...p.subarray(0,k));switch((r=this.metadataTags).raw??(r.raw={}),this.metadataTags.raw[e]=y,e){case"INAM":case"TITL":(a=this.metadataTags).title??(a.title=y);break;case"TIT3":(s=this.metadataTags).description??(s.description=y);break;case"IART":(n=this.metadataTags).artist??(n.artist=y);break;case"IPRD":(o=this.metadataTags).album??(o.album=y);break;case"IPRT":case"ITRK":case"TRCK":{const e=y.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&((c=this.metadataTags).trackNumber??(c.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((l=this.metadataTags).tracksTotal??(l.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||((u=this.metadataTags).date??(u.date=e))}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&((h=this.metadataTags).date??(h.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":(d=this.metadataTags).genre??(d.genre=y);break;case"ICMT":case"CMNT":case"COMM":(f=this.metadataTags).comment??(f.comment=y)}g+=8+t+(1&t)}}async parseId3Chunk(e,t){let i=this.reader.requestSlice(e,t);if(Xe(i)&&(i=await i),!i)return;const r=_c(i);if(r){const a=t-xc;if(r.size=Math.min(r.size,a),r.size>0){const t=i.slice(e+xc,r.size);Rc(t,r,this.metadataTags)}}}getCodec(){if(j(this.audioInfo),this.audioInfo.format===Ka.MULAW)return"ulaw";if(this.audioInfo.format===Ka.ALAW)return"alaw";if(this.audioInfo.format===Ka.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===Ka.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}j(!1)}async getMimeType(){return"audio/wav"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}const Ga=2048;class Qa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.format}async getDecoderConfig(){const e=this.demuxer.getCodec();return e?(j(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null}getNumberOfChannels(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return j(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return xe}getDisposition(){return{...ht}}async getPacketAtIndex(e,t){j(e>=0),j(this.demuxer.audioInfo);const i=e*Ga*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(Ga*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(Xe(e)&&(e=await e),!e)return null}let a;if(t.metadataOnly)a=rr;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);Xe(e)&&(e=await e),j(e),a=rc(e,r)}const s=e*Ga/this.demuxer.audioInfo.sampleRate,n=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new ar(a,"key",s,n,e,r)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getPacket(e,t){j(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/Ga,(this.demuxer.dataSize-1)/(Ga*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=await this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;j(null===this.demuxer.reader.fileSize);let a=await this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;a;){const e=await this.getNextPacket(a,t);if(!e)break;a=e}return a}getNextPacket(e,t){j(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/Ga);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Ya=e=>{const t=e.filePos,i=rc(e,9),r=new dt(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const a=r.readBits(1),s=r.readBits(2)+1,n=r.readBits(4);if(15===n)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const c=r.readBits(13);r.skipBits(11);const l=r.readBits(2)+1;if(1!==l)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===a?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:n,channelConfiguration:o,frameLength:c,numberOfAacFrames:l,crcCheck:u,startPos:t}},Ja=1024;class Za extends ir{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new ue,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();j(this.firstFrameHeader),this.trackBackings=[new es(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,xc);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=_c(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=Ya(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=ft[t.samplingFrequencyIndex];j(void 0!==i);const r=Ja/i,a={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(a),this.nextTimestampInSamples+=Ja,this.lastLoadedPos=t.startPos+t.frameLength}async getMimeType(){return"audio/aac"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,xc);if(Xe(t)&&(t=await t),!t)break;const i=_c(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(Xe(r)&&(r=await r),!r)break;Rc(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}}}class es{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/Ja}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return xe}getCodec(){return"aac"}getInternalCodecId(){return j(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){j(this.demuxer.firstFrameHeader);const e=mt[this.demuxer.firstFrameHeader.channelConfiguration];return j(void 0!==e),e}getSampleRate(){j(this.demuxer.firstFrameHeader);const e=ft[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return j(void 0!==e),e}getDisposition(){return{...ht}}async getDecoderConfig(){return j(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}}async getPacketAtIndex(e,t){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=rr;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Xe(e)&&(e=await e),!e)return null;r=rc(e,i.dataSize)}return new ar(r,"key",i.timestamp,i.duration,e,i.dataSize)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=me(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=pe(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);await this.demuxer.advanceReader()}}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}class ts extends ir{constructor(e){super(e),this.loadedSamples=[],this.metadataPromise=null,this.trackBacking=null,this.metadataTags={},this.audioInfo=null,this.lastLoadedPos=null,this.blockingBit=null,this.readingMutex=new ue,this.lastSampleLoaded=!1,this.reader=e._reader}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}async getTrackBackings(){return await this.readMetadata(),j(this.trackBacking),[this.trackBacking]}async getMimeType(){return"audio/flac"}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{var e;let t=0;for(;;){let e=this.reader.requestSlice(t,xc);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const i=_c(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);Xe(r)&&(r=await r),j(r),Rc(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||t<this.reader.fileSize;){let i=this.reader.requestSlice(t,4);if(Xe(i)&&(i=await i),t+=4,null===i)throw new Error(`Metadata block at position ${t} is too small! Corrupted file.`);j(i);const r=ac(i),a=oc(i),s=0!==(128&r);switch(127&r){case oi.STREAMINFO:{let e=this.reader.requestSlice(t,a);if(Xe(e)&&(e=await e),j(e),null===e)throw new Error(`StreamInfo block at position ${t} is too small! Corrupted file.`);const i=rc(e,34),r=new dt(i),s=r.readBits(16),n=r.readBits(16),o=r.readBits(24),c=r.readBits(24),l=r.readBits(20),u=r.readBits(3)+1;r.readBits(5);const h=r.readBits(36);r.skipBits(128);const d=new Uint8Array(42);d.set(new Uint8Array([102,76,97,67]),0),d.set(new Uint8Array([128,0,0,34]),4),d.set(i,8),this.audioInfo={numberOfChannels:u,sampleRate:l,totalSamples:h,minimumBlockSize:s,maximumBlockSize:n,minimumFrameSize:o,maximumFrameSize:c,description:d},this.trackBacking=new is(this);break}case oi.VORBIS_COMMENT:{let e=this.reader.requestSlice(t,a);Xe(e)&&(e=await e),j(e),li(rc(e,a),this.metadataTags);break}case oi.PICTURE:{let i=this.reader.requestSlice(t,a);Xe(i)&&(i=await i),j(i);const r=uc(i),s=uc(i),n=Z.decode(rc(i,s)),o=uc(i),c=Z.decode(rc(i,o));i.skip(16);const l=uc(i),u=rc(i,l);(e=this.metadataTags).images??(e.images=[]),this.metadataTags.images.push({data:u,mimeType:n,kind:3===r?"coverFront":4===r?"coverBack":"unknown",description:c});break}}if(t+=a,s){this.lastLoadedPos=t;break}}if(!this.audioInfo)throw new Error("Missing STREAMINFO metadata block! Corrupted FLAC file.")})())}async readNextFlacFrame({startPos:e,isFirstPacket:t}){j(this.audioInfo);const i=this.audioInfo.maximumBlockSize*this.audioInfo.numberOfChannels*4+16+2,r=this.audioInfo.minimumFrameSize||10,a=(this.audioInfo.maximumFrameSize||i)+16,s=await this.reader.requestSliceRange(e,16,a);if(!s)return null;const n=this.readFlacFrameHeader({slice:s,isFirstPacket:t});if(!n)return null;for(s.filePos=e+r;;){if(s.filePos>s.end-6)return{num:n.num,blockSize:n.blockSize,sampleRate:n.sampleRate,size:s.end-e,isLastFrame:!0};if(255===ac(s)){const t=s.filePos;if(ac(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-n.num!==1){s.filePos=t;continue}}else if(r.num-n.num!==n.blockSize){s.filePos=t;continue}return{num:n.num,blockSize:n.blockSize,sampleRate:n.sampleRate,size:i,isLastFrame:!1}}}}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=rc(e,4),a=new dt(r);if(32764!==a.readBits(15))return null;if(null===this.blockingBit){j(t);const e=a.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){j(!t);if(1!==a.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");j(!t);if(0!==a.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*2**e:6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?2**e:null)(a.readBits(4));if(!s)return null;j(this.audioInfo);const n=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(a.readBits(4),this.audioInfo.sampleRate);if(!n)return null;a.readBits(4),a.readBits(3);if(0!==a.readBits(1))return null;const o=(e=>{let t=0;const i=new dt(rc(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],a=t-1,s=new dt(rc(e,a)),n=8-t-1;for(let o=0;o<n;o++)r.unshift(i.readBits(1));for(let o=0;o<a;o++)for(let e=0;e<8;e++){const t=s.readBits(1);e<2||r.unshift(t)}return r.reduce((e,t,i)=>e|t<<i,0)})(e),c=((e,t)=>"uncommon-u16"===t?nc(e)+1:"uncommon-u8"===t?ac(e)+1:"number"===typeof t?t:(Te(t),void j(!1)))(e,s),l=((e,t)=>"uncommon-u16"===t?nc(e):"uncommon-u16-10"===t?10*nc(e):"uncommon-u8"===t?ac(e):"number"===typeof t?t:null)(e,n);if(null===l)return null;if(l!==this.audioInfo.sampleRate)return null;const u=e.filePos-i,h=ac(e);e.skip(-u),e.skip(-1);const d=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(rc(e,u));return h!==d?null:{num:o,blockSize:c,sampleRate:l}}async advanceReader(){await this.readMetadata(),j(null!==this.lastLoadedPos),j(this.audioInfo);const e=this.lastLoadedPos,t=await this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)}}class is{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return xe}getTimeResolution(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return j(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getDisposition(){return{...ht}}async getDecoderConfig(){return j(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}}async getPacket(e,t){if(j(this.demuxer.audioInfo),e<0)return null;const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=pe(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){await this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],a=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(a+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);await this.demuxer.advanceReader()}}finally{i()}}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}async getPacketAtIndex(e,t){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=rr;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(Xe(e)&&(e=await e),!e)return null;r=rc(e,i.byteSize)}j(this.demuxer.audioInfo);const a=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new ar(r,"key",a,s,e,i.byteSize)}async getFirstPacket(e){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)}}const rs=9e4,as=2**33,ss=188,ns="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",os=new Set([133,134,162]),cs=new Set;class ls extends ir{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=this.reader.requestSlice(0,205);Xe(e)&&(e=await e),j(e);const t=rc(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=ss;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,a=!1,s=!1;for(;;){const e=await this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=await this.readSection(i,!0,!s);if(!t)break;const n=3,o=32;let c=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new dt(t.payload),i=e.readAlignedByte();e.skipBits(8*i);c=2===e.readBits(8)}}if(0!==t.pid||a)if(t.pid!==r&&!c||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=hs(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(await this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new gs(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,await r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=Ft(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];j(t);const i=Nt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const a=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;a>0&&s>0&&(a>s?(e.info.squarePixelWidth=Math.round(e.info.width*a/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/a))),e.info.colorSpace={primaries:ie[i.colourPrimaries],transfer:ae[i.transferCharacteristics],matrix:ne[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=Wt(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===St.SPS_NUT).nalUnits[0];j(t);const i=qt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:ie[i.colourPrimaries],transfer:ae[i.transferCharacteristics],matrix:ne[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:zi({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(await r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=tc.tempFromBytes(r.suppliedPacket.data),i=Ya(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=mt[i.channelConfiguration],e.info.sampleRate=ft[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=uc(tc.tempFromBytes(r.suppliedPacket.data)),i=Yi(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=tr(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=hi(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=ui[t.acmod]+t.lfeon,e.info.sampleRate=yt[t.fscod]}else if("eac3"===e.info.codec){const t=mi(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=pi(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=gi(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=Ii(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:qi({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new dt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const a=e.readBits(10),c=e.pos+8*a;let l=!1;for(;e.pos<c;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(5===t&&i>=4){const t=e.readBits(32);l||(l=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=c;8*(r+n)-e.pos>o;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),a=e.pos+8*r;let s=!1,n=!1,o=!1;for(;e.pos<a;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(106===t)s=!0;else if(122===t||204===t)n=!0;else if(123===t)o=!0;else if(5===t&&i>=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let c=null;const u=l&&os.has(t)?130:t;switch(u){case 27:case 36:c={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",c={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:n?c={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?c={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(c={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:cs.has(t)||(ct._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),cs.add(t))}c&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:c,referencePesPackets:[]})}s=!0}else{const e=new dt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+n)-e.pos>o;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");a=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!a)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const n of this.elementaryStreams)n.initialized&&("video"===n.info.type?this.trackBackingEntries.push(new fs(n)):this.trackBackingEntries.push(new ms(n)))})())}async getTrackBackings(){return await this.readMetadata(),this.trackBackingEntries}async getMetadataTags(){return{}}async getMimeType(){await this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(await Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>e?.codec??null))))}async readSection(e,t,i=!1){let r=e,a=e;const s=[];let n,o=0,c=null,l=!0,u=0;for(;;){const e=await this.readPacket(a);if(a+=this.packetStride,!e)break;if(c){if(e.pid!==c.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;c=e}const n=!!(2&e.adaptationFieldControl),h=!!(1&e.adaptationFieldControl);let d=0;if(n&&(d=1+e.body[0],e===c&&d>1&&(u=e.body[1]>>6&1)),h&&(0===d?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(d)),o+=e.body.byteLength-d)),r=a,!t&&o>=64){l=!1;break}if(-1!==me(this.sectionEndPositions,r,e=>e)){l=!1;break}}if(l){const e=pe(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!c)return null;if(1===s.length)n=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);n=new Uint8Array(e);let t=0;for(const i of s)n.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:c.pid,payload:n,randomAccessIndicator:u}}async readPacketHeader(e){let t=this.reader.requestSlice(e,4);if(Xe(t)&&(t=await t),!t)return null;if(71!==ac(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=nc(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:ac(t)>>4&3}}async readPacket(e){let t=this.reader.requestSlice(e,ss);if(Xe(t)&&(t=await t),!t)return null;const i=rc(t,ss);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=as-t?-8589934592:as}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e<t?e+i:e}}const us=(e,t,i)=>{if(t.payload.byteLength<3)return null;const r=new dt(t.payload);if(1!==r.readBits(24))return null;const a=r.readBits(8);if(r.skipBits(16),188===a||190===a||191===a||240===a||241===a||255===a||242===a||248===a)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let n=null;if(2===s||3===s)n=0,r.skipBits(4),n+=r.readBits(3)*(1<<30),r.skipBits(1),n+=32768*r.readBits(15),r.skipBits(1),n+=r.readBits(15),n=e.normalizeTimestamp(n);else if(i)throw new Error(ns);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:n,randomAccessIndicator:t.randomAccessIndicator}},hs=(e,t,i)=>{j(null!==t.endPos);const r=us(e,t,i);if(!r)return null;const a=new dt(t.payload);a.skipBits(32);const s=a.readBits(16);a.skipBits(16);const n=a.readBits(8),o=a.pos+8*n;a.pos=o;const c=o/8;j(Number.isInteger(c));const l=t.payload.subarray(c,s>0?6+s:t.payload.byteLength);return{...r,data:l}};class ds{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,j(r instanceof ds),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return xe}getDisposition(){return{...ht,primary:!1}}getTimeResolution(){return rs}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new ar(i.metadataOnly?rr:e.data,r,e.pts/rs,Math.max(t/rs,0),e.sequenceNumber,e.data.byteLength)}async getFirstPacket(e){const t=this.elementaryStream.firstSection;j(t);const i=hs(this.elementaryStream.demuxer,t,!0);j(i);const r=new gs(this.elementaryStream,i),a=new ks(this,r),s=await a.readNext();if(!s)return null;const n=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(n,a),this.packetSectionStarts.set(n,s.packet.sectionStartPos),n}async getNextPacket(e,t){let i=this.packetBuffers.get(e);if(i){const r=await i.readNext();if(!r)return null;this.packetBuffers.delete(e);const a=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(a,i),this.packetSectionStarts.set(a,r.packet.sectionStartPos),a}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const a=this.elementaryStream.demuxer,s=await a.readSection(r,!0);j(s);const n=hs(a,s,!0);j(n);const o=new gs(this.elementaryStream,n);i=new ks(this,o);const c=e.sequenceNumber;for(;;){const e=await i.readNext();if(!e)return null;if(e.packet.sequenceNumber>c){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}}async getNextKeyPacket(e,t){let i=e;for(;;){if(i=await this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}async doPacketLookup(e,t,i){const r=Ce(e*rs),a=this.elementaryStream.demuxer,{reader:s,seekChunkSize:n}=a,o=this.elementaryStream.pid,c=async(e,t,i)=>{let r=e;for(;r<t;){const e=await a.readPacketHeader(r);if(!e)return null;if(e.pid===o&&1===e.payloadUnitStartIndicator){const e=await a.readSection(r,i);if(!e)return null;const t=us(a,e,!1);if(t&&null!==t.pts)return{pesPacketHeader:t,section:e}}r+=a.packetStride}return null},l=this.elementaryStream.firstSection;j(l);const u=us(a,l,!0);if(j(u),r<u.pts)return null;let h;const d=this.elementaryStream.referencePesPackets,f=pe(d,r,e=>e.pts),m=-1!==f?d[f]:null;if(m&&r-m.pts<45e3)h=m.sectionStartPos;else{let e=0;if(null!==s.fileSize){const t=Math.ceil(s.fileSize/n);if(t>1){let i=0,s=t-1;for(e=i;i<=s;){const t=Math.floor((i+s)/2),o=_e(t*n,a.packetStride)+u.sectionStartPos,l=o+n,h=await c(o,l,!1);h?h.pesPacketHeader.pts<=r?(e=t,i=t+1):s=t-1:s=t-1}}}h=_e(e*n,a.packetStride)+u.sectionStartPos}const p=await c(h,s.fileSize??1/0,!1);let g=p?.pesPacketHeader??null;g||(g=u);const k=this.getReorderSize(),y=async(e,t)=>{const s=await a.readSection(e,!0);j(s);const n=hs(a,s,!0);j(n);const o=new gs(this.elementaryStream,n),c=new ks(this,o);for(;;){if((X(c.presentationOrderPackets)?.pts??-1/0)>=r)break;if(!(await c.readNextPacket()))break}const l=we(c.presentationOrderPackets,t);if(-1===l)return null;const u=c.presentationOrderPackets[l],h=0===l?0:u.pts-c.presentationOrderPackets[l-1].pts;for(;c.decodeOrderPackets[0]!==u;)c.decodeOrderPackets.shift();c.lastDuration=h;const d=await c.readNext();j(d);const f=this.createEncodedPacket(d.packet,d.duration,i);return this.packetBuffers.set(f,c),this.packetSectionStarts.set(f,d.packet.sectionStartPos),f};if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=g.sectionStartPos+a.packetStride;for(;;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===o&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,!1);if(t){const e=us(a,t,!1);if(e&&null!==e.pts){if(e.pts>r)break e;g=e,ps(this.elementaryStream,g);break}}}e+=a.packetStride}}e:for(let e=0;e<k+1;e++){let e=g.sectionStartPos-a.packetStride;for(;e>=a.packetOffset;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===o&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,!1);if(t){const e=us(a,t,!1);if(e&&null!==e.pts){g=e;break}}}e-=a.packetStride}}return y(g.sectionStartPos,e=>e.pts<=r)}{let e=h,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let h=null;const d=e<=u.sectionStartPos;let f,m=null;if(d)f=u,m=l;else{const t=await c(e,s.fileSize??1/0,i);f=t?.pesPacketHeader??null,m=t?.section??null}let p=!1,g=0;e:for(;f&&!(null!==t&&f.sectionStartPos>=t);){if(f.pts<=r){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===f.randomAccessIndicator;else{j(m);const t=hs(a,m,!0);j(t);const i=new gs(this.elementaryStream,t);await i.markNextPacket(),e=1===i.suppliedPacket?.randomAccessIndicator}e&&(h=f)}if(f.pts>r&&(p=!0),p&&(g++,g>k))break;let e=f.sectionStartPos+a.packetStride;for(;;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===o&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,i);if(t){const e=us(a,t,!1);if(e&&null!==e.pts){f=e,m=t,ps(this.elementaryStream,f);break}}}e+=a.packetStride}}if(h){let e=h;if(0===g)e:for(let r=0;r<k;r++){let t=e.sectionStartPos-a.packetStride;for(;t>=a.packetOffset;){const r=await a.readPacketHeader(t);if(!r)break e;if(r.pid===o&&1===r.payloadUnitStartIndicator){const r=await a.readSection(t,i);if(r){const t=us(a,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=a.packetStride}}const t=await y(e.sectionStartPos,e=>e.pts<=r&&1===e.randomAccessIndicator);return j(t),t}if(d)return null;t=e,e=Math.max(_e(e-u.sectionStartPos-n,a.packetStride)+u.sectionStartPos,u.sectionStartPos)}}}}class fs extends ds{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}async getColorSpace(){return this.elementaryStream.info.colorSpace}async canBeTransparent(){return!1}async getDecoderConfig(){return j(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class ms extends ds{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}async getDecoderConfig(){return j(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const ps=(e,t)=>{const i=e.referencePesPackets,r=pe(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const a=i[r];if(t.pts<=a.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-a.sectionStartPos<s)return!1;if(r<i.length-1){const e=i[r+1];if(e.pts<t.pts)return!1;if(e.sectionStartPos-t.sectionStartPos<s)return!1}}return i.splice(r+1,0,t),!0};class gs{constructor(e,t){this.currentPos=0,this.pesPackets=[],this.currentPesPacketIndex=0,this.currentPesPacketPos=0,this.endPos=0,this.lastSuppliedPesPacket=null,this.nextPts=null,this.suppliedPacket=null,this.elementaryStream=e,this.pid=e.pid,this.demuxer=e.demuxer,this.startingPesPacket=t}ensureBuffered(e){const t=this.endPos-this.currentPos;return t>=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return j(e),e}async bufferData(e){const t=this.endPos+e;for(;this.endPos<t;){let e;if(0===this.pesPackets.length)e=this.startingPesPacket;else{let t=X(this.pesPackets).sectionEndPos;for(j(null!==t);;){const i=await this.demuxer.readPacketHeader(t);if(!i)return;if(i.pid===this.pid){const i=await this.demuxer.readSection(t,!0);if(!i)return;const r=hs(this.demuxer,i,!1);if(r){e=r;break}}t+=this.demuxer.packetStride}}this.pesPackets.push(e),this.endPos+=e.data.byteLength}}readBytes(e){const t=this.getCurrentPesPacket(),i=this.currentPos-this.currentPesPacketPos,r=i+e;if(this.currentPos+=e,r<=t.data.byteLength)return t.data.subarray(i,r);const a=new Uint8Array(e);a.set(t.data.subarray(i));let s=t.data.byteLength-i;for(;;){this.advanceCurrentPacket();const t=this.getCurrentPesPacket(),i=e-s;if(i<=t.data.byteLength){a.set(t.data.subarray(0,i),s);break}a.set(t.data,s),s+=t.data.byteLength}return a}readU8(){let e=this.getCurrentPesPacket();const t=this.currentPos-this.currentPesPacketPos;return this.currentPos++,t<e.data.byteLength?e.data[t]:(this.advanceCurrentPacket(),e=this.getCurrentPesPacket(),e.data[0])}seekTo(e){if(e!==this.currentPos){if(e<this.currentPos)for(;e<this.currentPesPacketPos;){this.currentPesPacketIndex--;const e=this.getCurrentPesPacket();this.currentPesPacketPos-=e.data.byteLength}else for(;;){const t=this.getCurrentPesPacket();if(e<this.currentPesPacketPos+t.data.byteLength)break;this.currentPesPacketPos+=t.data.byteLength,this.currentPesPacketIndex++}this.currentPos=e}}skip(e){this.seekTo(this.currentPos+e)}advanceCurrentPacket(){this.currentPesPacketPos+=this.getCurrentPesPacket().data.byteLength,this.currentPesPacketIndex++}async markNextPacket(){j(!this.suppliedPacket);const e=this.elementaryStream;if("video"===e.info.type){const t=e.info.codec,i=1024;if("avc"!==t&&"hevc"!==t)throw new Error("Unhandled.");const r="avc"===t?1:2;let a=null,s=!1,n=0;for(;;){let e=this.ensureBuffered(i);if(Xe(e)&&(e=await e),0===e)break;const o=this.currentPos,c=this.readBytes(e),l=c.byteLength;let u=0;for(;u<l;){const e=c.indexOf(0,u);if(-1===e||e>=l)break;u=e;const i=o+u;if(u+3>=l){this.seekTo(i);break}const h=c[u+1],d=c[u+2],f=c[u+3];let m=0;if(0===h&&0===d&&1===f?m=4:0===h&&1===d&&(m=3),0===m){u++;continue}const p=i;a??(a=p);const g=u+m,k=g+r,y=6;if(k+("avc"===t?y:1)>l){this.seekTo(i);break}const b=c[g];let w,T,S;if("avc"===t)w=Ct(b),T=w===wt.NON_IDR_SLICE||w===wt.SLICE_DPA||w===wt.IDR,S=w===wt.SEI||w===wt.SPS||w===wt.PPS||w===wt.AUD;else{w=Ut(b);if(((1&b)<<5|c[g+1]>>3)>0){u+=m;continue}T=w<=St.RASL_R||w>=St.BLA_W_LP&&w<=21,S=w>=St.VPS_NUT&&w<=37||w===St.PREFIX_SEI_NUT||w>=41&&w<=44||w>=48&&w<=55}let v=!1;if(T){let e;if("avc"===t){const t=c.subarray(k,k+y),i=$(new dt(t));e=!s||i<=n,n=i}else e=c[k]>>7===1;e&&(s?v=!0:s=!0)}else S&&s&&(v=!0);if(v){const e=p-a;return this.seekTo(a),this.supplyPacket(e,0)}u+=m}if(e<i)break}if(null!==a&&this.endPos>a){const e=this.endPos-a;return this.seekTo(a),this.supplyPacket(e,0)}}else{const t=e.info.codec,i=128;for(;;){let r=this.ensureBuffered(i);Xe(r)&&(r=await r);const a=this.currentPos;for(;this.currentPos-a<r;){const i=this.readU8();if("aac"===t){if(255!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(9);if(Xe(r)&&(r=await r),r<9)return;const a=this.readBytes(9),s=Ya(tc.tempFromBytes(a));if(s){this.seekTo(t);let i=this.ensureBuffered(s.frameLength);return Xe(i)&&(i=await i),this.supplyPacket(i,Math.round(9216e4/e.info.sampleRate))}this.seekTo(t+1)}else{if("mp3"!==t){if("ac3"===t){if(11!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(5);if(Xe(r)&&(r=await r),r<5)return;const a=this.readBytes(5);if(11!==a[0]||119!==a[1]){this.seekTo(t+1);continue}const s=a[4]>>6,n=63&a[4];if(3===s||n>37){this.seekTo(t+1);continue}const o=di[3*n+s];j(void 0!==o),this.seekTo(t),r=this.ensureBuffered(o),Xe(r)&&(r=await r);const c=Math.round(13824e4/e.info.sampleRate);return this.supplyPacket(r,c)}if("eac3"===t){if(11!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(5);if(Xe(r)&&(r=await r),r<5)return;const a=this.readBytes(5);if(11!==a[0]||119!==a[1]){this.seekTo(t+1);continue}const s=2*(((7&a[2])<<8|a[3])+1),n=3===a[4]>>6?3:a[4]>>4&3,o=fi[n];this.seekTo(t),r=this.ensureBuffered(s),Xe(r)&&(r=await r);const c=256*o,l=Math.round(c*rs/e.info.sampleRate);return this.supplyPacket(r,l)}if("dts"===t){if(127!==i&&100!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(18);if(Xe(r)&&(r=await r),r<18)return;const a=this.readBytes(18),s=Ci(a);let n=s?null:Bi(a);if(!s&&!n){this.seekTo(t+1);continue}if(n&&!n.asset){this.seekTo(t);const e=Math.min(n.frameSize,4096);let i=this.ensureBuffered(e);Xe(i)&&(i=await i),n=Bi(this.readBytes(i))??n}let o=s?s.frameSize:n.frameSize;if(s){let e=4*Math.ceil(s.frameSize/4);for(;;){this.seekTo(t);const i=e+10;let r=this.ensureBuffered(i);if(Xe(r)&&(r=await r),r<i)break;this.seekTo(t+e);const a=Bi(this.readBytes(10));if(!a)break;e+=a.frameSize,o=e}}const c=s?.sampleCount??n.asset?.sampleCount;if(void 0===c){this.seekTo(t+1);continue}this.seekTo(t),r=this.ensureBuffered(o),Xe(r)&&(r=await r);const l=Math.round(c*rs/e.info.sampleRate);return this.supplyPacket(r,l)}throw new Error("Unhandled.")}{if(255!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(4);if(Xe(r)&&(r=await r),r<4)return;const a=this.readBytes(4),s=J(a).getUint32(0),n=Yi(s,null);if(n.header){this.seekTo(t);let i=this.ensureBuffered(n.header.totalSize);Xe(i)&&(i=await i);const r=n.header.audioSamplesInFrame*rs/e.info.sampleRate;return this.supplyPacket(i,Math.round(r))}this.seekTo(t+1)}}}if(r<i)break}}}supplyPacket(e,t){const i=this.getCurrentPesPacket();let r;if(this.lastSuppliedPesPacket===i)j(null!==this.nextPts),r=this.nextPts;else{if(null===i.pts)throw new Error(ns);r=i.pts,ps(this.elementaryStream,i)}this.lastSuppliedPesPacket=i,this.nextPts=r+t;const a=i.sectionStartPos,s=a+(this.currentPos-this.currentPesPacketPos),n=this.readBytes(e);let o=i.randomAccessIndicator;if(0===o&&!this.elementaryStream.canBeTrustedWithKeyPackets)if("audio"===this.elementaryStream.info.type)o=1;else if(this.elementaryStream.info.decoderConfig){const e="key"===ni(this.elementaryStream.info.codec,this.elementaryStream.info.decoderConfig,n);o=Number(e)}this.suppliedPacket={pts:r,data:n,sequenceNumber:s,sectionStartPos:a,randomAccessIndicator:o},this.pesPackets.splice(0,this.currentPesPacketIndex),this.currentPesPacketIndex=0}}class ks{constructor(e,t){this.decodeOrderPackets=[],this.reorderBuffer=[],this.presentationOrderPackets=[],this.reachedEnd=!1,this.lastDuration=0,this.backing=e,this.context=t,this.reorderSize=e.getReorderSize(),j(this.reorderSize>=0)}async readNext(){if(0===this.decodeOrderPackets.length){if(!(await this.readNextPacket()))return null}await this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(j(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}}async readNextPacket(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||await this.context.markNextPacket(),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)}async ensureCurrentPacketHasNext(){const e=this.decodeOrderPackets[0];for(j(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(await this.readNextPacket()))break}}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;i<this.reorderBuffer.length;i++)this.reorderBuffer[i].pts<this.reorderBuffer[e].pts&&(e=i);const t=this.reorderBuffer[e];this.presentationOrderPackets.push(t),this.reorderBuffer.splice(e,1)}}flushReorderBuffer(){this.reorderBuffer.sort((e,t)=>e.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const ys="application/vnd.apple.mpegurl",bs="#EXT-X-STREAM-INF:",ws="#EXT-X-I-FRAME-STREAM-INF:",Ts="#EXT-X-MEDIA:",Ss="#EXTINF:",vs="#EXT-X-MAP:",Ps="#EXT-X-KEY:",Is="#EXT-X-MEDIA-SEQUENCE:",xs="#EXT-X-BYTERANGE:",Cs="#EXT-X-PROGRAM-DATE-TIME:",Bs="#EXT-X-TARGETDURATION:",Es="#EXT-X-PLAYLIST-TYPE:",_s=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class Rs{constructor(e){this._attributes={};let t="",i="",r=!1,a=!1;for(let s=0;s<e.length;s++){const n=e[s];'"'===n?a=!a:"="!==n||r||a?","!==n||a?r?i+=n:t+=n:(t&&(this._attributes[t.trim().toLowerCase()]=i),t="",i="",r=!1):r=!0}t&&(this._attributes[t.trim().toLowerCase()]=i)}get(e){return this._attributes[e.toLowerCase()]??null}getAsNumber(e){const t=this.get(e);if(null===t)return null;const i=Number(t);return Number.isFinite(i)?i:null}merge(e){Object.assign(this._attributes,e._attributes)}}class Fs{constructor(e,t,i){this.nextInputCacheAge=0,this.inputCache=[],this.trackBackingsPromise=null,this.firstSegment=null,this.firstSegmentFirstTimestamps=new WeakMap,this.firstTimestampCache=new WeakMap,this.input=e,this.path=t,this.trackDeclarations=i}async getDurationFromMetadata(e){const t=await this.getSegmentAt(1/0,{skipLiveWait:e.skipLiveWait});return t?t.timestamp+t.duration:null}async getUnixTimeForTimestamp(e){let t=await this.getSegmentAt(e,{});if(t??(t=await this.getFirstSegment({})),!t||null===t.unixEpochTimestamp)return null;const i=e-t.timestamp;return t.unixEpochTimestamp+i}async getTrackBackings(){return this.trackBackingsPromise??(this.trackBackingsPromise=(async()=>{const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=et(e,e=>"video"===e.getType())+1;e.push(new Ms(this,t,i))}else if("audio"===t.type){const i=et(e,e=>"audio"===e.getType())+1;e.push(new Ds(this,t,i))}}else{if(this.firstSegment=await this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=await t.getTracks();for(const r of i)if("video"===r.type){const t=et(e,e=>"video"===e.getType())+1;e.push(new Ms(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=et(e,e=>"audio"===e.getType())+1;e.push(new Ds(this,{id:e.length+1,type:"audio"},t))}}return e})())}async getFirstTimestampForInput(e){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=await e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i}async getMediaOffset(e,t){const i=e.firstSegment??e;let r;if(this.firstSegmentFirstTimestamps.has(i))r=this.firstSegmentFirstTimestamps.get(i);else{const e=this.getInputForSegment(i);r=await this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(i,r)}if(i===e)return i.timestamp-r;const a=await this.getFirstTimestampForInput(t),s=e.timestamp-i.timestamp,n=a-r-s;return Math.abs(n)<=Math.min(.25,s)?i.timestamp-r:e.timestamp-a}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class As{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{var e;if((e=this.segmentedInput).firstSegment??(e.firstSegment=await this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let t=this.segmentedInput.firstSegment,i=null;for(;t;){const e=this.segmentedInput.getInputForSegment(t);if(i=(await e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number)??null,i)break;t=await this.segmentedInput.getNextSegment(t,{})}if(!i)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=i,this.firstSegment=t})())}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}getHasOnlyKeyPackets(){return this.delegate(()=>this.firstInputTrack._backing.getHasOnlyKeyPackets?.()??null)}getPairingMask(){return 1n}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}async isRelativeToUnixEpoch(){return await this.hydrate(),j(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}async createAdjustedPacket(e,t,i){j(e.sequenceNumber>=0),j(this.segmentedInput.firstSegment);const r=await this.segmentedInput.getMediaOffset(t,i.input),a=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:Ee(e.timestamp+r,await i.getTimeResolution()),sequenceNumber:Math.floor(1e8*a)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s}async getFirstPacket(e){await this.hydrate(),j(this.firstInputTrack),j(this.firstSegment);let t=this.firstInputTrack,i=this.firstSegment;for(;;){if(t){const r=await t._backing.getFirstPacket(e);if(r)return this.createAdjustedPacket(r,i,t)}if(i=await this.segmentedInput.getNextSegment(i,{skipLiveWait:e.skipLiveWait}),!i)break;const r=this.segmentedInput.getInputForSegment(i);t=(await r.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number)??null}return null}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}async _getNextInternal(e,t,i){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const a=i?await r.track._backing.getNextKeyPacket(r.sourcePacket,t):await r.track._backing.getNextPacket(r.sourcePacket,t);if(a)return this.createAdjustedPacket(a,r.segment,r.track);let s=r.segment;for(;;){const e=await this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),a=(await i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!a){s=e;continue}const n=await a._backing.getFirstPacket(t);return n?this.createAdjustedPacket(n,e,a):null}}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}async _getPacketInternal(e,t,i){let r=await this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(await this.hydrate();r;){const a=this.segmentedInput.getInputForSegment(r),s=(await a.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const n=e-await this.segmentedInput.getMediaOffset(r,a),o=i?await s._backing.getKeyPacket(n,t):await s._backing.getPacket(n,t);if(o)return this.createAdjustedPacket(o,r,s);r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null}}class Ms extends As{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}async getColorSpace(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())}async canBeTransparent(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}class Ds extends As{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}Ye();const Ns=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class Os extends st{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}async getSizeOrNull(){if(this._disposed)throw new Zo;return this._sizePromise??(this._sizePromise=(async()=>{let e=this._getFileSize();return void 0!==e||(await this._read(0,1,0,Ns),e=this._getFileSize(),j(void 0!==e)),e})())}async getSize(){if(this._disposed)throw new Zo;const e=await this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new Js(this,e,t)}_dispatchRead(e,t){this.onread?.(e,t),this._emit("read",{start:e,end:t})}ref(){return new Ls(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class Ls{constructor(e){if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),e._refFinalizationRegistry?.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const e=this.source;j(e._refCount>0),e._decrementRefCount(),e._refFinalizationRegistry?.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class zs extends Os{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof Os||e instanceof Ls))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof Os?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return Xe(t)?t.then(i):i(t)}}const Us=(e,t)=>e.path===t.path;class qs extends zs{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof Os?e.ref():e;return this._root=t,this._rootRequest=null,t};Xe(e)?this._rootRequest=e.then(t):(t(e),j(this._root))}if(this._rootRequest)return this._rootRequest.then(a=>a.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const Ws="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class Hs extends Os{constructor(e,t={}){if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!Je(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new Ys({maxCacheSize:t.maxCacheSize??8388608,maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),Ws?.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:Qs.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}async _runWorker(e){j(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!Ue()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),Ws?.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos<e.targetPos&&!e.aborted;)if(t){const{done:i,value:r}=await t.read();if(i)throw this._orchestrator.onWorkerFinished(e),new Error("Blob reader stopped unexpectedly before all requested data was read.");if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+r.length),this._orchestrator.supplyWorkerData(e,r)}else{const t=await this._blob.slice(e.currentPos,e.targetPos).arrayBuffer();if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+t.byteLength),this._orchestrator.supplyWorkerData(e,new Uint8Array(t))}this._orchestrator.signalWorkerStoppedRunning(e),e.aborted&&await(t?.cancel())}_dispose(){this._orchestrator.dispose()}}const Vs=(e,t,i)=>{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch{}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return ct._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(2**(e-2),16)},js=new Set;class Ks extends zs{constructor(e,t={}){if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!Je(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new Ks(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=t.getRetryDelay??Vs,this._requestInit={...t.requestInit};let i=null;if(t.requestInit?.headers){const e={...Ne(t.requestInit.headers)},r=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==r&&(i=e[r],delete e[r],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){i??(i=t);const r=new Request(e);r.headers.delete("Range"),this._url=r}}if(null!==i){const e=$s(i);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new Ys({maxCacheSize:t.maxCacheSize??67108864,maxWorkerCount:t.parallelism??2,runWorker:this._runWorker.bind(this),prefetchProfile:Qs.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const e=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===e?null!==this._length?this._length:null:Ie(e-this._offset,0,this._length??1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const a=this._offset,s=this._sequentialBacking?this._sequentialBacking._read(a+e,a+t):this._orchestrator.read(a+e,a+t,Math.max(a+i,a),a+Math.min(r,this._length??1/0)),n=e=>e?(e.offset-=this._offset,e):null;return Xe(s)?s.then(n):n(s)}async _runWorker(e){for(;;){const i=new AbortController,r=await Oe(this._options.fetchFn??fetch,this._url,De(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:i.signal}),this._getRetryDelay,()=>this._disposed);if(!r.ok)throw new Error(`Error fetching ${String(this._url)}: ${r.status} ${r.statusText}`);r.redirected&&(this.rootPath=r.url);e:if(null===this._orchestrator.fileSize&&(206===r.status||"basic"===r.type&&!r.headers.has("Content-Encoding"))){const t=r.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=r.headers.get("Content-Length");if(i){const t=206===r.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!r.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==r.status){if(this._sequentialBacking)return void r.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||js.has(e.origin)||(ct._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),js.add(e.origin))}return void this._transitionToSequentialMode(r.body)}const a=r.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return i.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let r;try{r=await a.read()}catch(t){if(this._disposed)throw t;const e=this._getRetryDelay(1,t,this._url);if(null!==e){ct._error("Error while reading response stream. Attempting to resume.",t),await at(1e3*e);break}throw t}if(e.aborted)continue;const{done:s,value:n}=r;if(s){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+n.length),this._orchestrator.supplyWorkerData(e,n)}}}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const a=new ReadableStream({pull:async e=>{for(;;){let s;try{s=await t.read()}catch(a){if(this._disposed)throw a;const e=this._getRetryDelay(1,a,this._url);if(null===e)throw a;ct._error("Error while reading response stream. Attempting to resume.",a),await at(1e3*e);const s=await Oe(this._options.fetchFn??fetch,this._url,De(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!s.ok)throw new Error(`Error fetching ${String(this._url)}: ${s.status} ${s.statusText}`);if(!s.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=s.body.getReader(),r=206===s.status?0:i;continue}if(s.done)return void e.close();let n=s.value;if(r>0){const e=Math.min(r,n.length);r-=e,n=n.subarray(e)}if(0!==n.length)return i+=n.length,void e.enqueue(n)}},cancel:()=>t.cancel()}),s=new Gs(a,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const n=new Set;for(const o of this._orchestrator.workers){for(const e of o.pendingSlices)n.add(e);o.aborted=!0,o.pendingSlices.length=0}for(const o of this._orchestrator.queuedReads)for(const e of o.pendingSlices)n.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const o of n){const e=s._read(o.start,o.start+o.bytes.length);Xe(e)?e.then(e=>{e?(j(e.offset===o.start),o.resolve(e.bytes)):o.resolve(null)},e=>o.reject(e)):(j(null===e),o.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const Xs=/^bytes=(\d+)-(\d*)$/,$s=e=>{const t=Xs.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&r<i?null:{offset:i,length:null!==r?r-i+1:null}};class Gs extends Os{constructor(e,t={}){if(!(e instanceof ReadableStream))throw new TypeError("stream must be a ReadableStream.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!Je(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");super(),this._reader=null,this._cache=[],this._pendingSlices=[],this._currentIndex=0,this._targetIndex=0,this._maxRequestedIndex=0,this._endIndex=null,this._pulling=!1,this._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. With ReadableStreamSource, you must access the data more sequentially or increase the size of its cache.",this._stream=e,this._maxCacheSize=t.maxCacheSize??33554432,this._handleUnhandledError=t.handleUnhandledError}_getFileSize(){return this._endIndex}_read(e,t){if(null!==this._endIndex&&t>this._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=pe(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let a=e;const s=new Uint8Array(t-e);if(-1!==i)for(let l=i;l<this._cache.length;l++){const i=this._cache[l];if(i.start>=t)break;const r=Math.max(e,i.start);r>a&&this._throwDueToCacheMiss();const n=Math.min(t,i.end);r<n&&(s.set(i.bytes.subarray(r-i.start,n-i.start),r-e),a=n)}if(a===t)return{bytes:s,view:J(s),offset:e};this._currentIndex>a&&this._throwDueToCacheMiss();const{promise:n,resolve:o,reject:c}=ke();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:c}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),n}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}async _pull(){for(this._reader??(this._reader=this._stream.getReader());this._currentIndex<this._targetIndex&&!this._disposed;){const{done:e,value:t}=await this._reader.read();if(e){for(const e of this._pendingSlices)e.resolve(null);this._pendingSlices.length=0,this._endIndex=this._currentIndex;break}const i=this._currentIndex,r=this._currentIndex+t.byteLength;this._dispatchRead(i,r);for(let a=0;a<this._pendingSlices.length;a++){const e=this._pendingSlices[a],s=Math.max(i,e.start),n=Math.min(r,e.end);s<n&&(e.bytes.set(t.subarray(s-i,n-i),s-e.start),n===e.end&&(e.resolve({bytes:e.bytes,view:J(e.bytes),offset:e.start}),this._pendingSlices.splice(a,1),a--))}for(this._cache.push({start:i,end:r,bytes:t,view:J(t),age:0});this._cache.length>0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1}_dispose(){for(const e of this._pendingSlices)e.reject(new Zo);this._pendingSlices.length=0,this._cache.length=0,this._reader?.cancel()}}const Qs={fileSystem:(e,t)=>{const i=65536;return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=65536;e=Math.max(0,Math.floor((e-r)/r)*r);for(const a of i){const i=8388608,r=Math.max((a.startPos+a.targetPos)/2,a.targetPos-i);if(Ge(e,t,r,a.targetPos)){const e=a.targetPos-a.startPos,r=Math.ceil((e+1)/i)*i,s=2**Math.ceil(Math.log2(e+1)),n=Math.min(s,r);t=Math.max(t,a.startPos+n)}}return{start:e,end:t=Math.max(t,e+524288)}}};class Ys{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){j(!this.disposed);const a=this.options.prefetchProfile(e,t,this.workers),s=Math.max(a.start,i),n=Math.min(a.end,this.fileSize??1/0,r);j(s<=e&&t<=n);let o=null;const c=pe(this.cache,e,e=>e.start),l=-1!==c?this.cache[c]:null;l&&l.start<=e&&t<=l.end&&(l.age=this.nextAge++,o={bytes:l.bytes,view:l.view,offset:l.start});const u=pe(this.cache,s,e=>e.start),h=o?null:new Uint8Array(t-e);let d=0,f=s;const m=[];if(-1!==u){for(let i=u;i<this.cache.length;i++){const r=this.cache[i];if(r.start>=n)break;if(r.end<=s)continue;const a=Math.max(s,r.start),o=Math.min(n,r.end);if(j(a<=o),f<a&&m.push({start:f,end:a}),f=o,h){const i=Math.max(e,r.start),a=Math.min(t,r.end);if(i<a){const t=i-e;h.set(r.bytes.subarray(i-r.start,a-r.start),t),t===d&&(d=a-e)}}r.age=this.nextAge++}f<n&&m.push({start:f,end:n})}else m.push({start:s,end:n});if(h&&d>=h.length&&(o={bytes:h,view:J(h),offset:e}),0===m.length)return j(o),o;const{promise:p,resolve:g,reject:k}=ke(),y=[];for(const w of m){const i=Math.max(e,w.start),r=Math.min(t,w.end);i===w.start&&r===w.end?y.push(w):i<r&&y.push({start:i,end:r})}const b=h&&{start:e,bytes:h,holes:y,resolve:g,reject:k};e:for(const w of m){for(const i of this.workers){if(this.checkHoleAgainstWorker(i,w,b?[b]:[])){this.checkQueuedReadsAgainstWorker(i);continue e}}const e=w.end<n||null!==this.fileSize,t=this.createWorker(w.start,w.end,e);if(t)b&&(t.pendingSlices=[b]),this.runWorker(t);else{let t=pe(this.queuedReads,w.start,e=>e.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&w.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,w.end),i.strictTarget&&(i.strictTarget=e),b&&i.pendingSlices.push(b)):(t++,i={hole:{start:w.start,end:w.end},strictTarget:e,pendingSlices:b?[b]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1<this.queuedReads.length;){const e=this.queuedReads[t+1];if(e.hole.start>i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return o?p.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(j(h),o=p.then(t=>t&&{bytes:t,view:J(t),offset:e})),o}checkHoleAgainstWorker(e,t,i){if(Ge(t.start-2**17,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t<i.length;t++){const r=i[t];e.pendingSlices.includes(r)||e.pendingSlices.push(r)}return e.running||this.runWorker(e),!0}return!1}checkQueuedReadsAgainstWorker(e){let t=!1;for(let i=0;i<this.queuedReads.length;i++){const r=this.queuedReads[i];if(this.checkHoleAgainstWorker(e,r.hole,r.pendingSlices))this.queuedReads.splice(i,1),i--,t=!0;else if(t)break}}createWorker(e,t,i){if(this.workers.length>=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i<this.workers.length;i++){const r=this.workers[i];r.running||0!==r.pendingSlices.length||e&&!(r.age<e.age)||(t=i,e=r)}if(!e)return null;j(null!==t),j(0===e.pendingSlices.length),this.workers.splice(t,1),this.options.onIdleWorkerRemoved?.(e)}const r={startPos:e,currentPos:e,targetPos:t,strictTarget:i,running:!1,aborted:this.disposed,pendingSlices:[],age:this.nextAge++};return this.workers.push(r),r}runWorker(e){j(!e.running),j(e.currentPos<e.targetPos),e.running=!0,e.age=this.nextAge++,this.options.runWorker(e).catch(t=>{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;r<this.queuedReads.length;r++){this.queuedReads[r].age<this.queuedReads[e].age&&(e=r)}const t=this.queuedReads[e],i=this.createWorker(t.hole.start,t.hole.end,t.strictTarget);if(!i)return;this.queuedReads.splice(e,1),i.pendingSlices=t.pendingSlices,this.runWorker(i)}})}supplyWorkerData(e,t){j(!e.aborted);const i=e.currentPos,r=i+t.length;this.insertIntoCache({start:i,end:r,bytes:t,view:J(t),age:this.nextAge++}),e.currentPos+=t.length,e.currentPos>e.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;a<e.pendingSlices.length;a++){const s=e.pendingSlices[a],n=Math.max(i,s.start),o=Math.min(r,s.start+s.bytes.length);n<o&&s.bytes.set(t.subarray(n-i,o-i),n-s.start);for(let e=0;e<s.holes.length;e++){const t=s.holes[e];i<=t.start&&r>t.start&&(t.start=r),t.end<=t.start&&(s.holes.splice(e,1),e--)}0===s.holes.length&&(s.resolve(s.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;a<this.workers.length;a++){const t=this.workers[a];e===t||t.running||Ge(i,r,t.currentPos,t.targetPos)&&(this.workers.splice(a,1),this.options.onIdleWorkerRemoved?.(t),a--)}}supplyFileSize(e){j(null===this.fileSize),this.fileSize=e;for(const t of this.workers){t.targetPos=Math.min(t.targetPos,e),t.strictTarget=!0;for(let i=0;i<t.pendingSlices.length;i++){const r=t.pendingSlices[i];for(const a of r.holes)if(a.end>e){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t<this.queuedReads.length;t++){const i=this.queuedReads[t];if(i.hole.start>=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t<i.pendingSlices.length;t++){const r=i.pendingSlices[t];r.start>=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){const t=this.workers.indexOf(e);j(-1!==t),e.running=!1,this.workers.splice(t,1),this.options.onIdleWorkerRemoved?.(e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const i of e.pendingSlices)i.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=pe(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=J(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i<this.cache.length;i++){const t=this.cache[i];if(e.end<=t.start)break;if(e.end>=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=J(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;i<this.cache.length;i++){const r=this.cache[i];r.age<t.age&&(e=i,t=r)}if(this.currentCacheSize-t.bytes.length<=this.options.maxCacheSize)break;this.cache.splice(e,1),this.currentCacheSize-=t.bytes.length}}dispose(){for(const e of this.workers){for(const t of e.pendingSlices)t.reject(new Zo);e.pendingSlices.length=0,e.aborted=!0,e.running||this.options.onIdleWorkerRemoved?.(e)}for(const e of this.queuedReads)for(const t of e.pendingSlices)t.reject(new Zo);this.workers.length=0,this.cache.length=0,this.queuedReads.length=0,this.disposed=!0}}class Js extends Os{constructor(e,t,i){if(super(),this._ref=null,e._disposed)throw new Error("Cannot create a slice of a disposed source.");this._baseSource=e,this._offset=t,this._length=i??null}_getFileSize(){const e=this._baseSource._getFileSize();return void 0===e?null!==this._length?this._length:void 0:null===e?null!==this._length?this._length:null:Ie(e-this._offset,0,this._length??1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const a=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return Xe(a)?a.then(s):s(a)}_dispose(){this._ref?.free()}ref(){return this._ref??(this._ref=this._baseSource.ref()),super.ref()}}var Zs=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},en=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const tn=/^0[xX][0-9a-fA-F]+$/,rn=/^data:.*;base64,/i;class an extends Fs{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){return this.currentUpdateSegmentsPromise??(this.currentUpdateSegmentsPromise=(async()=>{try{const e=this.getRemainingWaitTimeMs();e>0&&await at(e),this.lastSegmentUpdateTime=performance.now(),await this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}})())}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}async updateSegments(){let e=this.nextLines;if(this.nextLines=null,!e){const t={stack:[],error:void 0,hasError:!1};try{const i=Zs(t,await this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),r=new ec(i.source),a=await r.requestEntireFile();j(a),e=wc(a,a.length,{ignore:_s}),i.source instanceof zs&&(this.rootPath=i.source.rootPath)}catch(y){t.error=y,t.hasError=!0}finally{en(t)}}const t=!1!==this.input._formatOptions.hls?.offsetTimestampsByDateTime;let i=!1,r=0,a=null,s=null,n=null,o=0,c=null,l=null,u=null,h=null,d=null,f=null,m=!1,p=X(this.segments)??null;const g=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},k=e=>{o=e,p&&(j(null!==p.sequenceNumber),p.sequenceNumber<e&&(r=p.timestamp+p.duration,c=p.firstSegment,l=p.initSegment,d=p.lastProgramDateTimeSeconds,a=null!==p.unixEpochTimestamp?p.unixEpochTimestamp+p.duration:null,p=null))};for(let b=0;b<e.length;b++){const y=e[b];if(i){if(!y.startsWith("#")){if(!p){if(null===s)throw new Error("Invalid M3U8 file; a segment must be preceded by an #EXTINF tag.");let e=n;if(e&&"AES-128"===e.method&&!e.iv){const t=new Uint8Array(fr),i=J(t);i.setUint32(8,Math.floor(o/2**32)),i.setUint32(12,o),e={...e,iv:t}}const t=Ze(this.rootPath,y),i={timestamp:r,unixEpochTimestamp:a,firstSegment:c,sequenceNumber:o,location:{path:t,offset:h?.offset??0,length:h?.length??null},duration:s,encryption:e,initSegment:l,lastProgramDateTimeSeconds:d};c??(c=i),r+=s,null!==a&&(a+=s),this.segments.push(i)}s=null,null===h?u=null:h=null,k(o+1)}if(y.startsWith(Ss)){if(p){m=!0;continue}m||(null===d&&o>0&&null!==f&&(r=o*f),m=!0);const e=y.slice(8),t=e.indexOf(","),i=-1===t?e:e.slice(0,t),a=Number(i);if(!Number.isFinite(a)||a<0)throw new Error(`Invalid #EXTINF tag duration '${i}'.`);s=a}else if(y.startsWith(vs)){const e=new Rs(y.slice(11)),t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const i=e.get("byterange");let o=null;if(null!==i&&(o=g(i)),o&&null===o.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!p){const e={path:Ze(this.rootPath,t),offset:o?.offset??0,length:o?.length??null};if("AES-128"===n?.method&&!n.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");l={timestamp:r,unixEpochTimestamp:a,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:n,initSegment:null,lastProgramDateTimeSeconds:d}}s=null,null===h?u=null:h=null}else if(y.startsWith(Ps)){const e=new Rs(y.slice(11)),t=e.get("method");if("NONE"===t)n=null;else if("AES-128"===t){const t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=e.get("iv");if(r){if(!tn.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(fr);for(let t=0;t<fr;t++){const r=-32+t;i[t]=parseInt(e.slice(r,r+2),16)}}const a=e.get("keyformat")??"identity";if("identity"!==a)throw new Error("For AES-128 encryption, only the 'identity' KEYFORMAT is currently supported. If you think other formats should be supported, please raise an issue.");n={method:"AES-128",keyUri:Ze(this.rootPath,t),iv:i,keyFormat:a}}else{if("SAMPLE-AES"!==t&&"SAMPLE-AES-CTR"!==t)throw new Error(`Unsupported encryption method '${t}'. If you think this method should be supported, please raise an issue.`);{const i=e.get("uri");if(!i)throw new Error(`Invalid #EXT-X-KEY: ${t} requires a URI attribute.`);if("identity"===(e.get("keyformat")??"identity"))throw new Error("For SAMPLE-AES and SAMPLE-AES-CTR encryption, the 'identity' KEYFORMAT is not supported. If you think this format should be supported, please raise an issue.");let r=null;if(rn.test(i)){const e=i.indexOf(","),t=Qe(i.slice(e+1));if(t.length>=8&&112===t[4]&&115===t[5]&&115===t[6]&&104===t[7]){const e=J(t).getUint32(0);r=sr(t.subarray(8,Math.min(e,t.length)))}}n={method:t,psshBox:r}}}}else if(y.startsWith(Is)){const e=y.slice(22),t=Number(e);if(!Number.isInteger(t)||t<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${e}'.`);k(t)}else if(y.startsWith(xs)){const e=g(y.slice(17));if(null===e.offset){if(null===u)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");e.offset=u}h=e,u=e.offset+e.length}else if(y.startsWith(Cs)){if(p)continue;const e=y.slice(25),i=Date.parse(e);if(!Number.isFinite(i))continue;const s=i/1e3;if(d===s)continue;if(null===d&&this.segments.length>0){const e=X(this.segments),i=s-(e.timestamp+e.duration);for(const r of this.segments)r.unixEpochTimestamp=r.timestamp+i,t&&(r.timestamp=r.unixEpochTimestamp)}d=s,a=s,t&&(r=s)}else if("#EXT-X-DISCONTINUITY"===y)c=null;else if(y.startsWith(Bs)){const e=y.slice(22),t=Number(e);if(!Number.isFinite(t)||t<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${e}'.`);this.refreshInterval=t,f=t}else{if("#EXT-X-ENDLIST"===y){this.streamHasEnded=!0;break}if(y.startsWith(Es)){"vod"===y.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==y)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");i=!0}}if(!i)throw new Error("Invalid M3U8 file; no #EXTM3U header.")}async getFirstSegment(){return 0===this.segments.length&&await this.runUpdateSegments(),this.segments[0]??null}async getSegmentAt(e,t){0===this.segments.length&&await this.runUpdateSegments();let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=pe(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r<this.segments.length-1||this.streamHasEnded||i)return this.segments[r];const a=this.segments[r];if(e<a.timestamp+a.duration)return a;await this.runUpdateSegments(),t.skipLiveWait&&(i=!0)}}async getNextSegment(e,t){const i=this.segments.indexOf(e);j(-1!==i);const r=i+1;let a=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){if(r<this.segments.length)return this.segments[r];if(this.streamHasEnded||a)return null;await this.runUpdateSegments(),t.skipLiveWait&&(a=!0)}}async getPreviousSegment(e){const t=this.segments.indexOf(e);return j(-1!==t),this.segments[t-1]??null}getInputForSegment(e){const t=e,i=this.inputCache.find(e=>e.segment===t);if(i)return i.age=this.nextInputCacheAge++,i.input;let r=null;(t.initSegment||t.firstSegment)&&(r=this.getInputForSegment(t.initSegment??t.firstSegment));const a={...this.input._formatOptions,isobmff:{...this.input._formatOptions.isobmff,resolveKeyId:this.input._formatOptions.isobmff?.resolveKeyId&&(e=>{if(!t.encryption||"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method||!t.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let i=e.psshBoxes;const{psshBox:r}=t.encryption;return null!==r.keyIds&&!r.keyIds.includes(e.keyId)||i.some(e=>nr(e,r))||(i=[...i,r]),this.input._formatOptions.isobmff.resolveKeyId({...e,psshBoxes:i})})}},s=new Yo({source:new qs(t.location.path,async e=>{j(e.isRoot);const i={...e,isRoot:!1};let r;const a=t.location.offset>0||null!==t.location.length;if(t.encryption&&"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method)if("AES-128"===t.encryption.method){const e=t.encryption;j(e.iv);let s=await this.input._getSourceCached(i);if(a){const e=s.source.slice(t.location.offset,t.location.length??void 0).ref();s.free(),s=e}const n=((e,t,i)=>{let r=!1,a=0;const s=new Sr;return new ReadableStream({pull:async n=>{r||(s.init(await t()),r=!0);let o=e.requestSliceRange(a,0,65552);if(Xe(o)&&(o=await o),!o||0===o.length)throw new Error("Invalid ciphertext.");const c=o.length;if(c%16!==0)throw new Error("Invalid ciphertext.");const l=65552===c?c-16:c,u=rc(o,l),h=new Uint8Array(l);for(let e=0;e<l;e+=16)s.in.set(u.subarray(e,e+16)),s.decrypt(),h.set(s.out,e);if(l<c)n.enqueue(h),a+=l;else{const e=h[l-1];if(0===e||e>16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=h.subarray(0,l-e);n.enqueue(t),n.close(),i()}},cancel:()=>{i()}})})(new ec(s.source),async()=>{const t={stack:[],error:void 0,hasError:!1};try{const i=Zs(t,await this.input._getSourceCached({path:e.keyUri,isRoot:!1},Qo),!1),r=new ec(i.source),a=await r.requestSlice(0,fr);if(!a)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:rc(a,fr),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{en(t)}},()=>{s.free()});r=new Gs(n).ref()}else j(!1);else if(r=await this.input._getSourceCached(i),a){const e=r.source.slice(t.location.offset,t.location.length??void 0).ref();r.free(),r=e}return r}),formats:this.input._formats.filter(e=>!(e instanceof Pn)),initInput:r??void 0,formatOptions:a});s._onFormatDetermined=e=>{if(("SAMPLE-AES"===t.encryption?.method||"SAMPLE-AES-CTR"===t.encryption?.method)&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:t,input:s,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=tt(this.inputCache,e=>e.age);j(-1!==e),this.inputCache.splice(e,1)}return s}async getLiveRefreshInterval(){return 0===this.getRemainingWaitTimeMs()&&await this.runUpdateSegments(),this.streamHasEnded?null:this.refreshInterval}}class sn extends ir{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{j(this.input._rootSource instanceof zs);const e=await this.input._reader.requestEntireFile();j(e);const t=wc(e,e.length,{ignore:_s}),{rootPath:i}=this.input._rootSource,r=[],a=[];for(let u=1;u<t.length;u++){const e=t[u];if(e.startsWith(bs)){const a=u,s=t[++u];if(void 0===s)throw new Error("Incorrect M3U8 file; a line must follow the #EXT-X-STREAM-INF tag.");const n=Ze(i,s),o=new Rs(e.slice(18));if(null===o.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");r.push({fullPath:n,attributes:o,lineNumber:a,hasOnlyKeyPackets:!1})}else if(e.startsWith(ws)){const t=new Rs(e.slice(26)),a=t.get("uri");if(null===a)throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a URI attribute.");if(null===t.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");const s=Ze(i,a);r.push({fullPath:s,attributes:t,lineNumber:u,hasOnlyKeyPackets:!0})}else if(e.startsWith(Ts)){const t=new Rs(e.slice(13));if(null===t.get("type"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a TYPE attribute.");if(null===t.get("group-id"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a GROUP-ID attribute.");let r=null;const s=t.get("uri");null!==s&&(r=Ze(i,s)),a.push({fullPath:r,attributes:t,lineNumber:u})}else if("#EXT-X-I-FRAMES-ONLY"===e);else if(e.startsWith(Ss)){const e=new an(this,i,null,t);return this.segmentedInputs=[e],this.hasMasterPlaylist=!1,void(this.trackBackings=await e.getTrackBackings())}}const s=[...new Set(a.filter(e=>"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],n=[...new Set(a.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=await Promise.all(r.map(async(e,t)=>{const r=[],o=e.attributes.get("codecs");let c;if(o)c=o.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=await t.getTrackBackings(),r=await Promise.all(i.map(async e=>({track:e,codec:await e.getCodec()})));c=await Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const l=e.attributes.get("video"),u=e.attributes.get("audio"),h=c.some(e=>_i.includes(ji(e))),d=c.some(e=>Fi.includes(ji(e)));if(null!==l&&!h){if(!s.includes(l))throw new Error(`Invalid M3U8 file; variant stream references video group "${l}" which is not defined in any #EXT-X-MEDIA tags.`);const e=a.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===l&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=Ze(i,t),a=this.getSegmentedInputForPath(r),s=(await a.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===await s.getCodec())break e;const n=await s.getDecoderConfig().then(e=>e?.codec??null);j(null!==n),c.push(n)}}if(null!==u&&!d){if(!n.includes(u))throw new Error(`Invalid M3U8 file; variant stream references audio group "${u}" which is not defined in any #EXT-X-MEDIA tags.`);const e=a.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===u&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=Ze(i,t),a=this.getSegmentedInputForPath(r),s=(await a.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===await s.getCodec())break e;const n=await s.getDecoderConfig().then(e=>e?.codec??null);j(null!==n),c.push(n)}}c=[...new Set(c)];let f=null,m=null;const p=e.attributes.getAsNumber("bandwidth");j(null!==p);const g=e.attributes.getAsNumber("average-bandwidth"),k=e.attributes.get("name");for(const i of c){const o=ji(i);if(null!==o)if(_i.includes(o)){if(null!==f)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");f=i;const n=e.attributes.get("video");if(null===n){const i=e.attributes.get("resolution");let a=null,s=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(a=Number(e[1]),s=Number(e[2]))}r.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:xe,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:f,pairingMask:1n<<BigInt(t),peakBitrate:p,averageBitrate:g,name:k,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:a,height:s}})}else{if(!s.includes(n))throw new Error(`Invalid M3U8 file; variant stream references video group "${n}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of a){const a=i.attributes.get("group-id"),s=i.attributes.get("type");if(a!==n||"video"!==s.toLowerCase())continue;const o=i.attributes.get("resolution")??e.attributes.get("resolution");let c=null,l=null;if(o){const e=o.match(/^(\d+)x(\d+)$/);e&&(c=Number(e[1]),l=Number(e[2]))}r.push({id:-1,demuxer:this,backingTrack:null,default:ln(i.attributes),autoselect:ln(i.attributes)||un(i.attributes),languageCode:hn(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:i.fullPath??e.fullPath,fullCodecString:f,pairingMask:1n<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:c,height:l}})}}}else if(Fi.includes(o)){if(null!==m)throw new Error("Unsupported M3U8 file; multiple audio codecs found in the CODECS attribute of a variant stream.");m=i;const s=e.attributes.get("audio");if(null===s){const i=e.attributes.get("channels"),a=null!==i?Number(i.split("/")[0]):null;r.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:xe,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:m,pairingMask:1n<<BigInt(t),peakBitrate:p,averageBitrate:g,name:k,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==a&&Number.isInteger(a)&&a>0?a:null}})}else{if(!n.includes(s))throw new Error(`Invalid M3U8 file; variant stream references audio group "${s}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of a){const a=i.attributes.get("group-id"),n=i.attributes.get("type");if(a!==s||"audio"!==n.toLowerCase())continue;const o=i.attributes.get("channels")??e.attributes.get("channels"),c=null!==o?Number(o.split("/")[0]):null;r.push({id:-1,demuxer:this,backingTrack:null,default:ln(i.attributes),autoselect:ln(i.attributes)||un(i.attributes),languageCode:hn(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:i.fullPath??e.fullPath,fullCodecString:m,pairingMask:1n<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==c&&Number.isInteger(c)&&c>0?c:null}})}}}}return r})),c=[],l=e=>{const t=c.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);t?(t.pairingMask|=e.pairingMask,t.default||(t.default=e.default),t.autoselect||(t.autoselect=e.autoselect),t.lineNumber=Math.min(t.lineNumber,e.lineNumber),null!==e.peakBitrate&&(t.peakBitrate=Math.max(t.peakBitrate??-1/0,e.peakBitrate)),null!==e.averageBitrate&&(t.averageBitrate=Math.max(t.averageBitrate??-1/0,e.averageBitrate)),t.languageCode===xe&&(t.languageCode=e.languageCode)):(e.id=c.length+1,c.push(e))};for(const u of o)for(const e of u)l(e);c.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const u of c)"video"===u.info.type?this.trackBackings.push(new on(u)):this.trackBackings.push(new cn(u));this.internalTracks=c})())}async getTrackBackings(){return await this.readMetadata(),j(this.trackBackings),this.trackBackings}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new an(this,e,i,null),this.segmentedInputs.push(t),t}async getMetadataTags(){return{}}async getMimeType(){return ys}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class nn{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(await e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof on){for(const r of i)if(await r.getCodec()===this.getCodec()){t=r;break}}else{j(this instanceof cn);for(const e of i)if(await e.getCodec()===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t})())}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return{...ht,default:this.internalTrack.autoselect,primary:this.internalTrack.default}}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){j(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}async getDurationFromMetadata(e){return await this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)}async getLiveRefreshInterval(){return await this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}async getFirstPacket(e){return await this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)}async getPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)}async getKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)}async getNextPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)}async getNextKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)}}class on extends nn{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return ji(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}async getColorSpace(){return await this.hydrate(),this.backingVideoTrack.getColorSpace()}async canBeTransparent(){return await this.hydrate(),this.backingVideoTrack.canBeTransparent()}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingVideoTrack.getDecoderConfig()}}class cn extends nn{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return ji(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingAudioTrack.getDecoderConfig()}}const ln=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},un=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},hn=e=>{if(null===e)return xe;const t=e.split("-")[0];return t||xe};class dn{constructor(){this._isIsobmff=!1}}class fn extends dn{constructor(){super(...arguments),this._isIsobmff=!0}async _getMajorBrand(e){let t=e._reader.requestSlice(0,12);if(Xe(t)&&(t=await t),!t)return null;t.skip(4);const i=bc(t,4);return"ftyp"!==i&&"styp"!==i?null:bc(t,4)}_createDemuxer(e){return new vr(e)}}class mn extends fn{async _canReadInput(e){const t=await this._getMajorBrand(e);if(null!==t)return"qt  "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(Xe(t)&&(t=await t),!t)return!1;let r=uc(t),a=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(Xe(t)&&(t=await t),!t)return!1;r=mc(t),a=16}if(r<a)return!1;const s=bc(t,4);if("moof"===s||"sidx"===s)return!0;if("emsg"!==s&&"prft"!==s&&"free"!==s)return!1;i+=r}return!1}get name(){return"MP4"}get mimeType(){return"video/mp4"}}class pn extends fn{async _canReadInput(e){return"qt  "===await this._getMajorBrand(e)}get name(){return"QuickTime File Format"}get mimeType(){return"video/quicktime"}}class gn extends dn{async isSupportedEBMLOfDocType(e,t){let i=e._reader.requestSlice(0,Kr);if(Xe(i)&&(i=await i),!i)return!1;const r=Xr(i);if(null===r)return!1;if(r<1||r>8)return!1;if(Gr(i,r)!==qr.EBML)return!1;const a=Yr(i);if("number"!==typeof a)return!1;let s=e._reader.requestSlice(i.filePos,a);if(Xe(s)&&(s=await s),!s)return!1;const n=i.filePos;for(;s.filePos<=n+a-2;){const e=Jr(s);if(!e)break;const{id:i,size:r}=e,a=s.filePos;if(void 0===r)return!1;switch(i){case qr.EBMLVersion:if(1!==Gr(s,r))return!1;break;case qr.EBMLReadVersion:if(1!==Gr(s,r))return!1;break;case qr.DocType:if(Zr(s,r)!==t)return!1;break;case qr.DocTypeVersion:if(Gr(s,r)>4)return!1}s.filePos=a+r}return!0}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new Ca(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class kn extends gn{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class yn extends dn{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=i.filePos+r.size}const i=await Ra(e._reader,t,t+4096);if(!i)return!1;const r=i.header,a=Qi(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+a,4);if(Xe(s)&&(s=await s),!s)return!1;const n=uc(s);if(n===$i||n===Gi)return!0;t=i.startPos+i.header.totalSize;const o=await Ra(e._reader,t,t+4);if(!o)return!1;const c=o.header;return r.channel===c.channel&&r.sampleRate===c.sampleRate}_createDemuxer(e){return new Fa(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class bn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,12);if(Xe(t)&&(t=await t),!t)return!1;const i=bc(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===bc(t,4)}_createDemuxer(e){return new $a(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class wn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,4);return Xe(t)&&(t=await t),!!t&&"OggS"===bc(t,4)}_createDemuxer(e){return new Wa(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class Tn extends dn{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return Xe(i)&&(i=await i),!!i&&"fLaC"===bc(i,4)}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new ts(e)}}class Sn extends dn{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(Xe(i)&&(i=await i),!i)return!1;const r=Ya(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),Xe(i)&&(i=await i),!i)return!1;const a=Ya(i);return!!a&&(r.objectType===a.objectType&&r.samplingFrequencyIndex===a.samplingFrequencyIndex&&r.channelConfiguration===a.channelConfiguration)}_createDemuxer(e){return new Za(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class vn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,205);if(Xe(t)&&(t=await t),!t)return!1;const i=rc(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])}_createDemuxer(e){return new ls(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class Pn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,7);if(Xe(t)&&(t=await t),!t)return!1;if(!("#EXTM3U"===bc(t,7)))return!1;if(!(e._rootSource instanceof zs))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0}_createDemuxer(e){return new sn(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return ys}}const In=new mn,xn=new pn,Cn=new gn,Bn=new kn,En=new yn,_n=new bn,Rn=new wn,Fn=new Sn,An=new Tn,Mn=new vn,Dn=new Pn,Nn=[Dn,In,xn,Cn,Bn,_n,Rn,An,En,Fn,Mn],On=[Dn,In,xn,En,Fn,Mn];var Ln=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});Ye();let zn=-1/0,Un=-1/0,qn=null;"undefined"!==typeof FinalizationRegistry&&(qn=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-zn>=1e3&&(ct._error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),zn=t),"undefined"!==typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(t-Un>=1e3&&(ct._error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),Un=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class Wn{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const Hn=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],Vn=new Set(Hn);class jn{get codedWidth(){return this.visibleRect.width}get codedHeight(){return this.visibleRect.height}get displayWidth(){return this.rotation%180===0?this.squarePixelWidth:this.squarePixelHeight}get displayHeight(){return this.rotation%180===0?this.squarePixelHeight:this.squarePixelWidth}get microsecondTimestamp(){return Math.trunc(Me*this.timestamp)}get microsecondDuration(){return Math.trunc(Me*this.duration)}get hasAlpha(){return this.format&&this.format.includes("A")}constructor(e,t){if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!Vn.has(t.format))throw new TypeError("init.format must be one of: "+Hn.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&rt(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0;const i=t.layout??to(t.format,t.codedWidth,t.codedHeight);let r=t.colorSpace??null;null===r&&(r="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:t.visibleRect?.left??0,top:t.visibleRect?.top??0,width:t.visibleRect?.width??t.codedWidth,height:t.visibleRect?.height??t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?Y(e):Y(e).slice(),this._layout=i,this.colorSpace=new Qn(r)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==t?.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==t?.timestamp&&!Number.isFinite(t?.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==t?.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==t?.visibleRect&&rt(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:e.visibleRect?.x??0,top:e.visibleRect?.y??0,width:e.visibleRect?.width??e.codedWidth,height:e.visibleRect?.height??e.codedHeight},this.rotation=t?.rotation??0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=t?.timestamp??e.timestamp/1e6,this.duration=t?.duration??(e.duration??0)/1e6,this.colorSpace=new Qn(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&rt(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new jn(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*Me),duration:Math.trunc((t.duration??0)*Me)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const a=t.visibleRect??{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(a.width,a.height),n=s.getContext("2d",{alpha:We(),willReadFrequently:!0});if(!n)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");n.drawImage(e,-a.left,-a.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:a.width,height:a.height},this.squarePixelWidth=a.width,this.squarePixelHeight=a.height,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=new Qn({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof Wn))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!Hn.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=e.getColorSpace()}this.encodeOptions=t?.encodeOptions??{},this.pixelAspectRatio=it({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),qn?.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return j(null!==this._data),this._data instanceof Wn?new jn(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):Yn(this._data)?new jn(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(j(this._layout),new jn(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new jn(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(qn?.unregister(this),this._data instanceof Wn?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Yn(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){if(eo(e),this._closed)throw new Error("VideoSample is closed.");if(null==(e.format??this.format))throw new Error("Cannot get allocation size when format is null.");if(Yn(this._data))return this._data.allocationSize(e);return ro(this,e).allocationSize}async copyTo(e,t={}){if(!le(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(eo(t),this._closed)throw new Error("VideoSample is closed.");if(null==(t.format??this.format))throw new Error("Cannot copy video sample data when format is null.");if(j(null!==this._data),Yn(this._data))return this._data.copyTo(e,t);if(t.format&&!["RGBA","RGBX","BGRA","BGRX"].includes(this.format)&&["RGBA","RGBX","BGRA","BGRX"].includes(t.format)){if(!(this._data instanceof Wn)){if("undefined"===typeof VideoFrame)throw new Error("For this sample, converting from a non-RGB to an RGB format requires VideoFrame to be defined.");const i=this.toVideoFrame(),r=await i.copyTo(e,t);return i.close(),r}{const i={stack:[],error:void 0,hasError:!1};try{const r=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,await this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},t.colorSpace??"srgb"),!1);if(!(r instanceof jn))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(r.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${r.format}' instead.`);return await r.copyTo(e,t)}catch(c){i.error=c,i.hasError=!0}finally{Ln(i)}}}const i=ro(this,t);j(this.format);const r=Y(e);if(r.byteLength<i.allocationSize)throw new TypeError(`Destination buffer too small. Required: ${i.allocationSize}, Available: ${r.byteLength}`);const a=io(this.format);let s;if(this._data instanceof Wn){let e=this._data.getDataPlanes();if(Xe(e)&&(e=await e),!Array.isArray(e)||e.some(e=>!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');s=e}else if(this._data instanceof Uint8Array)j(this._layout),j(this._layout.length===a.length),s=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");j(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);s=[{data:Y(t.data),stride:4*this.codedWidth}]}const n=[],o=a.length;for(let l=0;l<o;l++){const e=i.computedLayouts[l],t=s[l].stride,a=s[l].data;let o=e.sourceTop*t;o+=e.sourceLeftBytes;let c=e.destinationOffset;const u=e.sourceWidthBytes,h={offset:c,stride:e.destinationStride};for(let i=0;i<e.sourceHeight;i++){if(o+u>a.byteLength)throw new Error("Source buffer OOB read.");if(c+u>r.byteLength)throw new Error("Destination buffer OOB write.");const i=a.subarray(o,o+u);r.set(i,c),o+=t,c+=e.destinationStride}n.push(h)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),a=this.format.includes("X")&&t.format.includes("A");if(e||a)for(let t=0;t<i.allocationSize;t+=4){if(e){const e=r[t],i=r[t+2];r[t]=i,r[t+2]=e}a&&(r[t+3]=255)}}return n}toVideoFrame(){if(this._closed)throw new Error("VideoSample is closed.");if(j(null!==this._data),this._data instanceof Wn){if(null===this.format)throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if format is null.");const e=this._data.getDataPlanes();if(Xe(e))throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if getDataPlanes() returns a promise.");const t=e.reduce((e,t)=>e+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const a=[];for(const s of e)i.set(s.data,r),a.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:a[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return Yn(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(j(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,a,s,n,o,c){let l=0,u=0,h=this.displayWidth,d=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(l=t,u=i,h=r,d=a,f=s,m=n,void 0!==o?(p=o,g=c):(p=h,g=d)):(f=t,m=i,void 0!==r&&(p=r,g=a)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(l))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:l,sy:u,sWidth:h,sHeight:d}=this._rotateSourceRegion(l,u,h,d,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const w=this.rotation%180===0?1:p/g;e.scale(1/w,w),e.drawImage(k,l,u,h,d,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&Zn(t.crop,"options.");const i=e.canvas.width,r=e.canvas.height,a=t.rotation??this.rotation,[s,n]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let o,c,l,u,h=t.crop;h&&(h=Jn(h,s,n));const{sx:d,sy:f,sWidth:m,sHeight:p}=this._rotateSourceRegion(t.crop?.left??0,t.crop?.top??0,t.crop?.width??s,t.crop?.height??n,a);if("fill"===t.fit)o=0,c=0,l=i,u=r;else{const[e,a]=t.crop?[t.crop.width,t.crop.height]:[s,n],h="contain"===t.fit?Math.min(i/e,r/a):Math.max(i/e,r/a);l=e*h,u=a*h,o=(i-l)/2,c=(r-u)/2}e.save();const g=a%180===0?1:l/u;e.translate(i/2,r/2),e.rotate(a*Math.PI/180),e.scale(1/g,g),e.translate(-i/2,-r/2),e.drawImage(this.toCanvasImageSource(),d,f,m,p,o,c,l,u),e.restore()}_rotateSourceRegion(e,t,i,r,a){return 90===a?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===a?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===a&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,a=e.height,[s,n]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,c=i.crop?i.crop.height:n;let l=0;2*r<o&&2*a<c&&(l=Math.floor(Math.log2(Math.min(o/r,c/a))));const u=r*2**l,h=a*2**l,{canvas:d,context:f,isNew:m}=l>0?Gn(u,h):{canvas:e,context:t,isNew:i.targetIsFresh};f.imageSmoothingQuality="high",i.fillBlack?(f.fillStyle="black",f.fillRect(0,0,u,h)):m||f.clearRect(0,0,u,h),this.drawWithFit(f,{fit:i.fit,rotation:i.rotation,crop:i.crop}),f.globalCompositeOperation="copy";for(let p=l;p>1;p--){const e=r*2**p,t=a*2**p;f.drawImage(d,0,0,e,t,0,0,e/2,t/2)}f.globalCompositeOperation="source-over",l>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(d,0,0,2*r,2*a,0,0,r,a),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(j(null!==this._data),this._data instanceof Wn||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}async transform(e){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&Zn(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const t=K(this.rotation+(e.rotate??0)),[i,r]=t%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let a=e.crop;a&&(a=Jn(a,i,r));const s=a?a.width:i,n=a?a.height:r,o=s/n;let c,l;void 0!==e.width&&void 0===e.height?(c=e.width,l=c/o):void 0===e.width&&void 0!==e.height?(l=e.height,c=l*o):void 0!==e.width&&void 0!==e.height?(c=e.width,l=e.height):(c=s,l=n),c=Be(c,e.roundDimensionsTo??1),l=Be(l,e.roundDimensionsTo??1);const u={width:c,height:l,fit:e.fit??"fill",rotation:t,crop:a??{left:0,top:0,width:i,height:r},alpha:e.alpha??"keep"};for(const m of Kn){let e=m(this,u);if(Xe(e)&&(e=await e),null!==e)return e}const{canvas:h,context:d,isNew:f}=Gn(u.width,u.height);return this._drawWithFitAndMipmapping(h,d,{fit:u.fit,rotation:u.rotation,crop:u.crop,targetIsFresh:f,fillBlack:"discard"===u.alpha}),new jn(h,{timestamp:this.timestamp,duration:this.duration,rotation:0})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const Kn=[],Xn=[];let $n=0;const Gn=(e,t)=>{for(const a of Xn)if(a.canvas.width===e&&a.canvas.height===t)return a.age=$n++,{canvas:a.canvas,context:a.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return Xn.length>=3&&Xn.splice(tt(Xn,e=>e.age),1),Xn.push({canvas:i,context:r,age:$n++}),{canvas:i,context:r,isNew:!0}};class Qn{constructor(e){if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(te);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(re);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(se);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=e?.primaries??null,this.transfer=e?.transfer??null,this.matrix=e?.matrix??null,this.fullRange=e?.fullRange??null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const Yn=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,Jn=(e,t,i)=>{const r=Math.min(e.left,t),a=Math.min(e.top,i),s=Math.min(e.width,t-r),n=Math.min(e.height,i-a);return j(s>=0),j(n>=0),{left:r,top:a,width:s,height:n}},Zn=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},eo=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},to=(e,t,i)=>{const r=io(e),a=[];let s=0;for(const n of r){const e=Math.ceil(t/n.widthDivisor),r=Math.ceil(i/n.heightDivisor),o=e*n.sampleBytes,c=o*r;a.push({offset:s,stride:o}),s+=c}return a},io=e=>{const t=(e,t,i,r,a)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return a&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:Te(e),j(!1)}},ro=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,a=ao(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let n;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");n=t.format}else n=e.format;return no(a,n,s)},ao=(e,t,i,r,a)=>{const s={...e};if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!so(a,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},so=(e,t)=>{if(null===e)return!0;const i=io(e);for(let r=0;r<i.length;r++){const e=i[r],a=e.widthDivisor,s=e.heightDivisor;if((t.x||0)%a!==0)return!1;if((t.y||0)%s!==0)return!1}return!0},no=(e,t,i)=>{const r=io(t),a=r.length;if(void 0!==i&&i.length!==a)throw new TypeError(`Layout must have ${a} planes.`);let s=0;const n=[],o=[];for(let c=0;c<a;c++){const t=r[c],a=t.sampleBytes,l=t.widthDivisor,u=t.heightDivisor,h={destinationOffset:0,destinationStride:0,sourceTop:0,sourceHeight:0,sourceLeftBytes:0,sourceWidthBytes:0};if(h.sourceTop=Math.ceil(Math.trunc(e.y||0)/u),h.sourceHeight=Math.ceil(Math.trunc(e.height||0)/u),h.sourceLeftBytes=Math.floor(Math.trunc(e.x||0)/l)*a,h.sourceWidthBytes=Math.floor(Math.trunc(e.width||0)/l)*a,void 0!==i){const e=i[c];if(e.stride<h.sourceWidthBytes)throw new TypeError(`Stride for plane ${c} is too small.`);h.destinationOffset=e.offset,h.destinationStride=e.stride}else h.destinationOffset=s,h.destinationStride=h.sourceWidthBytes;const d=h.destinationStride*h.sourceHeight+h.destinationOffset;if(d>4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(d),s=Math.max(s,d);for(let e=0;e<c;e++){const t=n[e];if(!(o[c]<=t.destinationOffset||o[e]<=h.destinationOffset))throw new TypeError("Planes overlap.")}n.push(h)}return{allocationSize:s,computedLayouts:n}},oo=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]);class co{constructor(){this._referenceCount=0}}class lo{get microsecondTimestamp(){return Math.trunc(Me*this.timestamp)}get microsecondDuration(){return Math.trunc(Me*this.duration)}constructor(e){if(this._closed=!1,po(e)){if(null===e.format)throw new TypeError("AudioData with null format is not supported.");this._data=e,this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=e.numberOfFrames,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp/1e6,this.duration=e.numberOfFrames/e.sampleRate}else if(e instanceof co){if(this._data=e,e._referenceCount++,this.format=e.getFormat(),!oo.has(this.format))throw new TypeError("getFormat() must return an AudioSampleFormat.");if(this.sampleRate=e.getSampleRate(),!Number.isInteger(this.sampleRate)||this.sampleRate<=0)throw new TypeError("getSampleRate() must return a positive integer.");if(this.numberOfFrames=e.getNumberOfFrames(),!Number.isInteger(this.numberOfFrames)||this.numberOfFrames<0)throw new TypeError("getNumberOfFrames() must return a non-negative integer.");if(this.numberOfChannels=e.getNumberOfChannels(),!Number.isInteger(this.numberOfChannels)||this.numberOfChannels<=0)throw new TypeError("getNumberOfChannels() must return a positive integer.");if(this.timestamp=e.getTimestamp(),!Number.isFinite(this.timestamp))throw new TypeError("getTimestamp() must return a finite number.");this.duration=this.numberOfFrames/this.sampleRate}else{if(!e||"object"!==typeof e)throw new TypeError("Invalid AudioDataInit: must be an object.");if(!oo.has(e.format))throw new TypeError("Invalid AudioDataInit: invalid format.");if(!Number.isFinite(e.sampleRate)||e.sampleRate<=0)throw new TypeError("Invalid AudioDataInit: sampleRate must be > 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(e?.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(uo(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*uo(this.format);if(i.byteLength<r)throw new TypeError("Invalid AudioDataInit: insufficient data size.");this._data=i}qn?.register(this,{type:"audio",data:this._data},this)}allocationSize(e){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(!Number.isInteger(e.planeIndex)||e.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==e.format&&!oo.has(e.format))throw new TypeError("Invalid format.");if(void 0!==e.frameOffset&&(!Number.isInteger(e.frameOffset)||e.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==e.frameCount&&(!Number.isInteger(e.frameCount)||e.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const t=e.format??this.format,i=e.frameOffset??0;if(i>=this.numberOfFrames)throw new RangeError("frameOffset out of range");const r=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-i;if(r>this.numberOfFrames-i)throw new RangeError("frameCount out of range");const a=uo(t),s=ho(t);if(s&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!s&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(s?r:r*this.numberOfChannels)*a}copyTo(e,t){if(!le(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!oo.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:a}=t;let{planeIndex:s}=t,n=this.format;const o=i??this.format;if(!o)throw new Error("Destination format not determined");const c=this.numberOfFrames,l=this.numberOfChannels,u=a??0;if(u>=c)throw new RangeError("frameOffset out of range");const h=void 0!==r?r:c-u;if(h>c-u)throw new RangeError("frameCount out of range");const d=uo(o),f=ho(o);if(f&&s>=l)throw new RangeError("planeIndex out of range");if(!f&&0!==s)throw new RangeError("planeIndex out of range");const m=(f?h:h*l)*d;if(e.byteLength<m)throw new RangeError("Destination buffer is too small");const p=J(e),g=mo(o);if(po(this._data)){if(Ue()&&l>2&&o!==n)return void go(this._data,p,n,o,l,s,u,h);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:u,frameCount:h,format:o})}catch(S){if("f32-planar"===o)throw S;n="f32-planar"}}const k=fo(n),y=uo(n),b=ho(n);let w;if(this._data instanceof co){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=c*y*(b?1:l);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(b)if(f)w=e(s),s=0;else{w=new Uint8Array(c*y*l);for(let t=0;t<l;t++){const i=e(t);w.set(i,t*c*y)}}else w=e(0)}else if(this._data instanceof Uint8Array)w=this._data;else if(j("f32-planar"===n),f)w=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:s})),this._data.copyTo(w,{format:"f32-planar",planeIndex:s}),s=0;else{w=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:0})*l);for(let e=0;e<l;e++)this._data.copyTo(w.subarray(e*c*y,(e+1)*c*y),{format:"f32-planar",planeIndex:e})}const T=J(w);for(let v=0;v<h;v++)if(f){let e;e=b?(s*c+(v+u))*y:((v+u)*l+s)*y;g(p,v*d,k(T,e))}else for(let e=0;e<l;e++){let t;t=b?(e*c+(v+u))*y:((v+u)*l+e)*y;g(p,(v*l+e)*d,k(T,t))}}clone(){if(this._closed)throw new Error("AudioSample is closed.");if(this._data instanceof co){const e=new lo(this._data);return e.setTimestamp(this.timestamp),e}if(po(this._data)){const e=new lo(this._data.clone());return e.setTimestamp(this.timestamp),e}return new lo({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp,data:this._data})}trim(e,t=this.numberOfFrames){if(!Number.isInteger(e)||e<0)throw new TypeError("startFrame must be a non-negative integer.");if(!Number.isInteger(t)||t<0)throw new TypeError("endFrame must be a non-negative integer.");if(e>this.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t<e)throw new RangeError("endFrame must not be less than startFrame.");if(this._closed)throw new Error("AudioSample is closed.");const i=t-e,r=uo(this.format);let a;if(ho(this.format)){const t=i*r;if(a=new Uint8Array(t*this.numberOfChannels),i>0)for(let r=0;r<this.numberOfChannels;r++)this.copyTo(a.subarray(r*t,(r+1)*t),{planeIndex:r,format:this.format,frameOffset:e,frameCount:i})}else a=new Uint8Array(i*this.numberOfChannels*r),i>0&&this.copyTo(a,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new lo({data:a,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(qn?.unregister(this),this._data instanceof co?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):po(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof co?this._createAudioDataFromData():po(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(ho(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(new Uint8Array(t,i*e,e),{planeIndex:i,format:this.format});return new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:t})}{const e=new ArrayBuffer(this.allocationSize({planeIndex:0,format:this.format}));return this.copyTo(e,{planeIndex:0,format:this.format}),new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:e})}}toAudioBuffer(){if(this._closed)throw new Error("AudioSample is closed.");const e=new AudioBuffer({numberOfChannels:this.numberOfChannels,length:this.numberOfFrames,sampleRate:this.sampleRate}),t=new Float32Array(this.allocationSize({planeIndex:0,format:"f32-planar"})/4);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(t,{planeIndex:i,format:"f32-planar"}),e.copyToChannel(t,i);return e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}[Symbol.dispose](){this.close()}static*_fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,a=e.length,s=Math.floor(24e4/i);let n=0,o=a;for(;o>0;){const a=Math.min(s,o),c=new Float32Array(i*a);for(let t=0;t<i;t++)e.copyFromChannel(c.subarray(t*a,(t+1)*a),t,n);yield new lo({format:"f32-planar",sampleRate:r,numberOfFrames:a,numberOfChannels:i,timestamp:t+n/r,data:c}),n+=a,o-=a}}static fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,a=e.length,s=Math.floor(24e4/i);let n=0,o=a;const c=[];for(;o>0;){const a=Math.min(s,o),l=new Float32Array(i*a);for(let t=0;t<i;t++)e.copyFromChannel(l.subarray(t*a,(t+1)*a),t,n);const u=new lo({format:"f32-planar",sampleRate:r,numberOfFrames:a,numberOfChannels:i,timestamp:t+n/r,data:l});c.push(u),n+=a,o-=a}return c}}const uo=e=>{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},ho=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},fo=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},mo=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,Ie(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,Ie(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,Ie(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},po=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,go=(e,t,i,r,a,s,n,o)=>{const c=fo(i),l=mo(r),u=uo(i),h=uo(r),d=ho(i);if(ho(r))if(d){const r=new ArrayBuffer(o*u),a=J(r);e.copyTo(r,{planeIndex:s,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++){l(t,e*h,c(a,e*u))}}else{const r=new ArrayBuffer(o*a*u),d=J(r);e.copyTo(r,{planeIndex:0,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++){l(t,e*h,c(d,(e*a+s)*u))}}else if(d){const r=new ArrayBuffer(o*u),s=J(r);for(let d=0;d<a;d++){e.copyTo(r,{planeIndex:d,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++){l(t,(e*a+d)*h,c(s,e*u))}}}else{const r=new ArrayBuffer(o*a*u),s=J(r);e.copyTo(r,{planeIndex:0,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++)for(let i=0;i<a;i++){const r=e*a+i;l(t,r*h,c(s,r*u))}}},ko=[],yo=[],bo=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},wo=e=>{if(!Je(e))throw new TypeError("timestamp must be a number.")},To=(e,t,i)=>i.verifyKeyPackets?t.then(async t=>{if(!t||"delta"===t.type)return t;const i=await e.determinePacketType(t);return i&&(t.type=i),t}):t;class So{constructor(e){if(!(e instanceof Oo))throw new TypeError("track must be an InputTrack.");this._track=e}async getFirstPacket(e={}){if(bo(e),this._track.input._disposed)throw new Zo;return To(this._track,this._track._backing.getFirstPacket(e),e)}async getFirstKeyPacket(e={}){bo(e);const t=await this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null}async getPacket(e,t={}){if(wo(e),bo(t),this._track.input._disposed)throw new Zo;return To(this._track,this._track._backing.getPacket(e,t),t)}async getNextPacket(e,t={}){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");if(bo(t),this._track.input._disposed)throw new Zo;return To(this._track,this._track._backing.getNextPacket(e,t),t)}async getKeyPacket(e,t={}){if(wo(e),bo(t),this._track.input._disposed)throw new Zo;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=await this._track._backing.getKeyPacket(e,t);if(!i)return i;j("key"===i.type);return"delta"===await this._track.determinePacketType(i)?this.getKeyPacket(i.timestamp-1/await this._track.getTimeResolution(),t):i}async getNextKeyPacket(e,t={}){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");if(bo(t),this._track.input._disposed)throw new Zo;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=await this._track._backing.getNextKeyPacket(e,t);if(!i)return i;j("key"===i.type);return"delta"===await this._track.determinePacketType(i)?this.getNextKeyPacket(i,t):i}packets(e,t,i={}){if(void 0!==e&&!(e instanceof ar))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!i?.metadataOnly)throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof ar))throw new TypeError("endPacket must be an EncodedPacket.");if(bo(i),this._track.input._disposed)throw new Zo;const r=[];let{promise:a,resolve:s}=ke(),{promise:n,resolve:o}=ke(),c=!1,l=!1,u=null,h=!1;const d=[],f=()=>Math.max(2,d.length);(async()=>{let u=e??await this.getFirstPacket(i);for(;u&&!l&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=t?.sequenceNumber);)r.length>f()?(({promise:n,resolve:o}=ke()),await n):(r.push(u),s(),({promise:a,resolve:s}=ke()),u=await this.getNextPacket(u,i));c=!0,s()})().catch(e=>{h||(u=e,h=!0,s())});const m=this._track;return{async next(){for(;;){if(m.input._disposed)throw new Zo;if(l)return{value:void 0,done:!0};if(h)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(d.push(t);d.length>0&&t-d[0]>=1e3;)d.shift();return o(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};await a}},return:async()=>(l=!0,o(),s(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}class vo{constructor(e,t){this.onSample=e,this.onError=t}}class Po{mediaSamplesInRange(e=-1/0,t=1/0,i){wo(e),wo(t);const r=[];let a=!1,s=null,{promise:n,resolve:o}=ke(),{promise:c,resolve:l}=ke(),u=!1,h=!1,d=!1,f=null,m=null,p=!1;const g={...i,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{f=await this._createDecoder(i=>{l(),i.timestamp>=t&&(h=!0),h?i.close():(s&&(i.timestamp>e?(r.push(s),a=!0):s.close()),i.timestamp>=e&&(r.push(i),a=!0),s=a?null:i,r.length>0&&(o(),({promise:n,resolve:o}=ke())))},e=>{p||(m=e,p=!0,o())});const i=this._createPacketSink(),k=await i.getKeyPacket(e,g)??await i.getFirstKeyPacket(g);let y=k;const b=i.packets(k??void 0,void 0,g);for(await b.next();y&&!h&&!this._track.input._disposed;){const e=Io(r.length);if(r.length+f.getDecodeQueueSize()>e){({promise:c,resolve:l}=ke()),await c;continue}f.decode(y);const t=await b.next();if(t.done)break;y=t.value}await b.return(),d||this._track.input._disposed||await f.flush(),!a&&s&&r.push(s),u=!0,o()})().catch(e=>{p||(m=e,p=!0,o())}).finally(()=>{f?.close()});const k=this._track,y=()=>{s?.close();for(const e of r)e.close()};return{async next(){for(;;){if(k.input._disposed)throw d=!0,h=!0,y(),new Zo;if(d)return{value:void 0,done:!0};if(p)throw d=!0,h=!0,y(),m;if(r.length>0){const e=r.shift();return l(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};await n}},return:async()=>(d=!0,h=!0,l(),o(),y(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=async function*(e){Symbol.iterator in e?yield*e[Symbol.iterator]():yield*e[Symbol.asyncIterator]()}(e),r=[],a=[];let{promise:s,resolve:n}=ke(),{promise:o,resolve:c}=ke(),l=!1,u=!1,h=null,d=null,f=!1;const m=e=>{a.push(e),n(),({promise:s,resolve:n}=ke())},p={...t,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{h=await this._createDecoder(e=>{if(c(),u)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i<t;i++)m(i<t-1?e.clone():e);else e.close()},e=>{f||(d=e,f=!0,n())});const e=this._createPacketSink();let t=null,s=null,g=-1;const k=async()=>{j(s),j(h);let t=s;for(h.decode(t);t.sequenceNumber<g;){const i=Io(a.length);for(;a.length+h.getDecodeQueueSize()>i&&!u;)({promise:o,resolve:c}=ke()),await o;if(u)break;const r=await e.getNextPacket(t,p);j(r),h.decode(r),t=r}g=-1},y=async()=>{j(h),await h.flush();for(let e=0;e<r.length;e++)m(null);r.length=0};for await(const a of i){if(wo(a),u||this._track.input._disposed)break;const i=await e.getPacket(a,p),n=i&&await e.getKeyPacket(a,p);n?(t&&(n.sequenceNumber!==s.sequenceNumber||i.timestamp<t.timestamp)&&(await k(),await y()),r.push(i.timestamp),g=Math.max(i.sequenceNumber,g),t=i,s=n):(-1!==g&&(await k(),await y()),m(null),t=null)}u||this._track.input._disposed||(-1!==g&&await k(),await y()),l=!0,n()})().catch(e=>{f||(d=e,f=!0,n())}).finally(()=>{h?.close()});const g=this._track,k=()=>{for(const e of a)e?.close()};return{async next(){for(;;){if(g.input._disposed)throw u=!0,k(),new Zo;if(u)return{value:void 0,done:!0};if(f)throw u=!0,k(),d;if(a.length>0){const e=a.shift();return j(void 0!==e),c(),{value:e,done:!1}}if(l)return{value:void 0,done:!0};await s}},return:async()=>(u=!0,c(),n(),k(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}const Io=e=>0===e?40:8;class xo extends vo{constructor(e,t,i,r,a,s){super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=a,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new Le,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const n=ko.find(e=>e.supports(i,r));if(n)this.customDecoder=new n,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof jn))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();j(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(Ve()){if("avc"===i&&this.decoderConfig.description){const e=Mt(Y(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=Nt(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig={...this.decoderConfig,hardwareAcceleration:"prefer-software"}),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=Lt(t),this.decoderConfig={...this.decoderConfig,description:At(e)}))}}oe(this.decoderConfig.colorSpace)||(this.decoderConfig={...this.decoderConfig,colorSpace:{primaries:this.decoderConfig.colorSpace?.primaries??"bt709",matrix:this.decoderConfig.colorSpace?.matrix??"bt709",transfer:this.decoderConfig.colorSpace?.transfer??"bt709",fullRange:this.decoderConfig.colorSpace?.fullRange??!1}})}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(j(this.decoder),Math.max(this.decoder.decodeQueueSize,this.alphaDecoder?.decodeQueueSize??0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(j(this.decoder),Ue()||ge(this.inputTimestamps,e.timestamp,e=>e),Ve()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const a of xt(e.data,this.decoderConfig)){const r=Ct(e.data[a.offset]);if(i||(i=r>=1&&r<=5),r===wt.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(a.offset,a.offset+a.length))}if(!this.decoderConfig.description)for(let e=0;e<t.length;e++){const i=t[e];if(Ct(i[0])!==wt.SPS)continue;const r=Nt(i);r&&0!==r.maxDecFrameBuffering&&1!==r.bitstreamRestrictionFlag&&(t[e]=Lt(r));break}const r=((e,t)=>{if(t.description){const i=3&Y(t.description)[4];return Rt(e,i+1)}return _t(e)})(t,this.decoderConfig);e=new ar(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=Jt(e.data,this.decoderConfig);t&&(e=new ar(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new Bo),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();j(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();j(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=ni(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(t??e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of zt(e,this.decoderConfig)){const i=Ut(e[t.offset]);if(i===St.RASL_N||i===St.RASL_R)return!0}return!1}sampleHandler(e){if(Ue()){if(this.sampleQueue.length>0&&e.timestamp>=X(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}ge(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();j(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}async mergeAlpha(e,t){const i=ke();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){j(this.merger);const i=await this.merger.merge(e,t);r.sample=new jn(i)}else r.sample=new jn(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(a){ye(this.finalSamples,r),this.onError(a)}finally{ye(this.mergeAlphaPromises,i.promise),i.resolve()}}async flush(){if(this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(j(this.decoder),await Promise.all([this.decoder.flush(),this.alphaDecoder?.flush()]),await Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),Ue()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(j(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.merger?.close());for(const e of this.sampleQueue)e.close();this.sampleQueue.length=0}}let Co=null;class Bo{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!Co){const e=new Blob([`(${Eo.toString()})()`],{type:"application/javascript"});Co=URL.createObjectURL(e)}const e=Ie(navigator.hardwareConcurrency,1,4);for(let t=0;t<e;t++){const e=new Worker(Co);e.addEventListener("message",e=>{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=ke();this.pendingRequests.set(i,r);const a=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,a.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const Eo=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:a,alpha:s}=e.data;i=i.then(async()=>{try{const e=await r(a,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{a.close(),s.close()}})});const r=async(e,t)=>{const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),c=i.includes("P12"),l=r.includes("P10"),u=r.includes("P12");if(l!==o||u!==c)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return await a(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return await s(e,t,i);if("NV12"===i)return await n(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)},a=async(e,t,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=new Uint8Array(4*s);await e.copyTo(n);const c=await o(t,r,a,1);for(let o=0,u=3;o<s;o++,u+=4)n[u]=c[o];const l={format:"RGBX"===i||"RGBA"===i?"RGBA":"BGRA",codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[n.buffer]};return new VideoFrame(n,l)},s=async(e,t,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=i.includes("P10"),n=i.includes("P12"),c=s||n?2:1;let l,u;i.startsWith("I420")?(l=Math.ceil(r/2),u=Math.ceil(a/2)):i.startsWith("I422")?(l=Math.ceil(r/2),u=a):(l=r,u=a);const h=r*a,d=h*c,f=l*u*c,m=new Uint8Array(d+2*f+h*c);await e.copyTo(m);const p=await o(t,r,a,c),g=d+2*f;m.set(p,g);const k={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[m.buffer]};return new VideoFrame(m,k)},n=async(e,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=Math.ceil(r/2)*Math.ceil(a/2),c=e.allocationSize();t&&t.byteLength===c||(t=new Uint8Array(c)),await e.copyTo(t);const l=new Uint8Array(s+2*n+s);l.set(t.subarray(0,s),0);const u=s,h=s+n,d=s;for(let o=0;o<n;o++)l[u+o]=t[d+2*o],l[h+o]=t[d+2*o+1];const f=await o(i,r,a,1);l.set(f,s+2*n);const m={format:"I420A",codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[l.buffer]};return new VideoFrame(l,m)},o=async(t,i,r,a)=>{const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),await t.copyTo(e);const n=t.format;if("RGBA"===n||"BGRA"===n||"RGBX"===n||"BGRX"===n){const t="RGBA"===n||"RGBX"===n?0:2,a=i*r;for(let i=0;i<a;i++)e[i]=e[4*i+t];return e.subarray(0,a)}return e.subarray(0,i*r*a)}},_o=e=>{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class Ro extends Po{constructor(e,t={}){if(!(e instanceof Uo))throw new TypeError("videoTrack must be an InputVideoTrack.");_o(t),super(),this._track=e,this._decoderOptions=t}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(je("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=await this._track.getCodec(),r=await this._track.getRotation();let a=await this._track.getDecoderConfig();const s=await this._track.getTimeResolution();return j(i&&a),a={...a,hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency},new xo(e,t,i,a,r,s)}_createPacketSink(){return new So(this._track)}async getSample(e,t={}){wo(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Fo{constructor(e,t={}){if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof Uo))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&Zn(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&_o(t.decoderOptions),this._videoTrack=e,this._alpha=t.alpha??!1,this._options=t,this._fit=t.fit??"fill",this._videoSampleSink=new Ro(e,t.decoderOptions),this._canvasPool=Array.from({length:t.poolSize??0},()=>null)}_ensureInit(){return this._initPromise??(this._initPromise=(async()=>{const e=this._options,t=this._videoTrack,i=e.rotation??await t.getRotation(),r=await t.getSquarePixelWidth(),a=await t.getSquarePixelHeight(),[s,n]=i%180===0?[r,a]:[a,r];let o=e.crop;o&&(o=Jn(o,s,n));let[c,l]=o?[o.width,o.height]:[s,n];const u=c/l;void 0!==e.width&&void 0===e.height?(c=e.width,l=Math.round(c/u)):void 0===e.width&&void 0!==e.height?(l=e.height,c=Math.round(l*u)):void 0!==e.width&&void 0!==e.height&&(c=e.width,l=e.height),this._width=c,this._height=l,this._rotation=i,this._crop=o})())}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],a=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),a=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||We()});j(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:a,fillBlack:!this._alpha&&We()});const n={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),n}async getCanvas(e,t){wo(e),await this._ensureInit();const i=await this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)}async*canvases(e,t,i){await this._ensureInit(),yield*Pe(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e))}async*canvasesAtTimestamps(e,t){await this._ensureInit(),yield*Pe(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e))}}class Ao extends vo{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new Le,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const a=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const a=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(a*s)/s),e(t)},s=yo.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof lo))throw new TypeError("The argument passed to onSample must be an AudioSample.");a(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{a(new lo(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(j(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(j(this.decoder),this.expectedFirstTimestamp??(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}async flush(){this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(j(this.decoder),await this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(j(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class Mo extends vo{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,j(Ri.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:a,littleEndian:s}=Vi(this.codec);switch(this.inputSampleSize=a,a){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-128:"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const a=(1<<i|(15&r)<<i-4|1<<i-5)-33;return 0===t?a:-a})(e.getUint8(t)):"alaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let a=0;return a=4!==i?1<<i|(15&r)<<i-4|1<<i-5:r<<1|1,0===t?a:-a})(e.getUint8(t)):j(!1);break;case 2:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint16(t,s)-32768:"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):j(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>Se(e,t,s)-2**23:"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>Se(e,t,i)<<8>>8)(e,t,s):j(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-2**31:"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):j(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):j(!1);break;default:Te(a),j(!1)}switch(a){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+128));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:Te(a),j(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=J(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,a=new ArrayBuffer(r),s=new DataView(a);for(let l=0;l<i*this.decoderConfig.numberOfChannels;l++){const e=l*this.inputSampleSize,i=l*this.outputSampleSize,r=this.readInputValue(t,e);this.writeOutputValue(s,i,r)}const n=i/this.decoderConfig.sampleRate;(null===this.currentTimestamp||Math.abs(e.timestamp-this.currentTimestamp)>=n)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=n;const c=new lo({format:this.outputFormat,data:a,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(c)}async flush(){}close(){}}class Do extends Po{constructor(e){if(!(e instanceof qo))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(je("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=await this._track.getCodec(),r=await this._track.getDecoderConfig();return j(i&&r),Ri.includes(r.codec)?new Mo(e,t,r):new Ao(e,t,i,r)}_createPacketSink(){return new So(this._track)}async getSample(e,t={}){wo(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class No{constructor(e){if(!(e instanceof qo))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new Do(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}async getBuffer(e,t){wo(e);const i=await this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)}buffers(e,t,i){return Pe(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return Pe(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class Oo{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof Uo}isAudioTrack(){return this instanceof qo}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}async getInternalCodecId(){return this._backing.getInternalCodecId()}get internalCodecId(){return Lo(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}async getLanguageCode(){return this._backing.getLanguageCode()}get languageCode(){return Lo(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}async getName(){return this._backing.getName()}get name(){return Lo(this._backing.getName(),"name","getName")}async getTimeResolution(){return this._backing.getTimeResolution()}get timeResolution(){return Lo(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}async isRelativeToUnixEpoch(){return this._backing.isRelativeToUnixEpoch()}async getUnixTimeForTimestamp(e){return this._backing.getUnixTimeForTimestamp(e)}async hasUnixTimeMapping(){return null!==await this._backing.getUnixTimeForTimestamp(await this.getFirstTimestamp())}async getDisposition(){return this._backing.getDisposition()}get disposition(){return Lo(this._backing.getDisposition(),"disposition","getDisposition")}async getBitrate(){return this._backing.getBitrate()}async getAverageBitrate(){return this._backing.getAverageBitrate()}async getFirstTimestamp(){const e=await this._backing.getFirstPacket({metadataOnly:!0});return e?.timestamp??0}async computeDuration(e){const t=await this._backing.getPacket(1/0,{metadataOnly:!0,...e});return Ee((t?.timestamp??0)+(t?.duration??0),await this.getTimeResolution())}async getDurationFromMetadata(e={}){return this._backing.getDurationFromMetadata(e)}async computePacketStats(e=1/0,t){const i=new So(this);let r=1/0,a=-1/0,s=0,n=0;for await(const o of i.packets(void 0,void 0,{metadataOnly:!0,...t})){if(s>=e&&o.timestamp>=a)break;r=Math.min(r,o.timestamp),a=Math.max(a,o.timestamp+o.duration),s++,n+=o.byteLength}return{packetCount:s,averagePacketRate:s?Number((s/(a-r)).toPrecision(16)):0,averageBitrate:s?Number((8*n/(a-r)).toPrecision(16)):0}}async isLive(){return null!==await this._backing.getLiveRefreshInterval()}async getLiveRefreshInterval(){return this._backing.getLiveRefreshInterval()}canBePairedWith(e){if(!(e instanceof Oo))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&0n!==(this._backing.getPairingMask()&e._backing.getPairingMask())}async getPairableTracks(e){return this.input.getTracks(jo({filter:e=>e.canBePairedWith(this)},e))}async getPairableVideoTracks(e){return this.input.getVideoTracks(jo({filter:e=>e.canBePairedWith(this)},e))}async getPairableAudioTracks(e){return this.input.getAudioTracks(jo({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableVideoTrack(e){return this.input.getPrimaryVideoTrack(jo({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableAudioTrack(e){return this.input.getPrimaryAudioTrack(jo({filter:e=>e.canBePairedWith(this)},e))}async hasPairableTrack(e){e&&(e=zo(e));const t=await this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||await e(i)))return!0;return!1}hasPairableVideoTrack(e){return e&&(e=zo(e)),this.hasPairableTrack(async t=>t.isVideoTrack()&&(!e||await e(t)))}hasPairableAudioTrack(e){return e&&(e=zo(e)),this.hasPairableTrack(async t=>t.isAudioTrack()&&(!e||await e(t)))}}const Lo=(e,t,i)=>{if(Xe(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},zo=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return Xe(r)?r.then(i):i(r)}:void 0};class Uo extends Oo{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}async getCodec(){return this._backing.getCodec()}get codec(){return Lo(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??"prores"===await this._backing.getCodec()}async getCodedWidth(){return this._backing.getCodedWidth()}get codedWidth(){return Lo(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}async getCodedHeight(){return this._backing.getCodedHeight()}get codedHeight(){return Lo(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}async getRotation(){return this._backing.getRotation()}get rotation(){return Lo(this._backing.getRotation(),"rotation","getRotation")}async getSquarePixelWidth(){return this._backing.getSquarePixelWidth()}get squarePixelWidth(){return Lo(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}async getSquarePixelHeight(){return this._backing.getSquarePixelHeight()}get squarePixelHeight(){return Lo(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}async getPixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=it({num:await this.getSquarePixelWidth()*await this.getCodedHeight(),den:await this.getSquarePixelHeight()*await this.getCodedWidth()}))}get pixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=it({num:Lo(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*Lo(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:Lo(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*Lo(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")}))}async getDisplayWidth(){const e=await(this._backing.getMetadataDisplayWidth?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()}get displayWidth(){const e=this._backing.getMetadataDisplayWidth?.();if(void 0!==e){const t=Lo(e,"displayWidth","getDisplayWidth");if(null!==t)return t}const t=Lo(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return Lo(t,"displayWidth","getDisplayWidth")}async getDisplayHeight(){const e=await(this._backing.getMetadataDisplayHeight?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()}get displayHeight(){const e=this._backing.getMetadataDisplayHeight?.();if(void 0!==e){const t=Lo(e,"displayHeight","getDisplayHeight");if(null!==t)return t}const t=Lo(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return Lo(t,"displayHeight","getDisplayHeight")}async getColorSpace(){return this._backing.getColorSpace()}async hasHighDynamicRange(){const e=await this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix}async canBeTransparent(){return this._backing.canBeTransparent()}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(j(null!==t),ko.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(await VideoDecoder.isConfigSupported(e)).supported}catch(e){return ct._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=await this.getCodec();if(null===t)return null;const i=await this.getDecoderConfig();return j(i),ni(t,i,e.data)}async computeFrameRateMetrics(e={}){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!Je(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const t=await this.getTimeResolution(),i=e.targetPacketCount??256,r=new So(this),a=[];let s=-1/0,n=0;for await(const I of r.packets(void 0,void 0,{metadataOnly:!0})){if(a.length>=i&&I.timestamp>=s)break;a.push(I.timestamp),s=Math.max(s,I.timestamp),n++}const o=new Float64Array(a.length);for(let I=0;I<a.length;I++)o[I]=Math.round(a[I]*t);o.sort();let c=1;for(let I=1;I<o.length;I++)o[I]!==o[c-1]&&(o[c++]=o[I]);if(c<2)return{underlyingFrameRate:null,bestGuessFrameRate:t,minFrameRate:t,maxFrameRate:t,averageFrameRate:t,medianFrameRate:t,frameRateIsConstant:!0,probedPacketCount:n};const l=o.subarray(0,c),u=Xo(l,t),h=u??t,d=null!==u?t/u:null,f=new Map;let m=1/0,p=-1/0,g=0;for(let I=1;I<c;I++){const e=l[I]-l[I-1],t=null!==d?Math.max(1,Math.round(e/d)):e;f.set(t,(f.get(t)??0)+1),m=Math.min(m,t),p=Math.max(p,t),g+=t}const k=c-1,y=[...f.keys()].sort((e,t)=>e-t),b=k-1>>1,w=k>>1;let T=0,S=0,v=0;for(const I of y)if(v+=f.get(I),0===T&&v>b&&(T=I),v>w){S=I;break}const P=(h/T+h/S)/2;return{underlyingFrameRate:u,bestGuessFrameRate:null!==u?u:Go(P),minFrameRate:h/p,maxFrameRate:h/m,averageFrameRate:h*k/g,medianFrameRate:P,frameRateIsConstant:null!==u&&1===m&&1===p,probedPacketCount:n}}}class qo extends Oo{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}async getCodec(){return this._backing.getCodec()}get codec(){return Lo(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??!0}async getNumberOfChannels(){return this._backing.getNumberOfChannels()}get numberOfChannels(){return Lo(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}async getSampleRate(){return this._backing.getSampleRate()}get sampleRate(){return Lo(this._backing.getSampleRate(),"sampleRate","getSampleRate")}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(j(null!==t),yo.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(await AudioDecoder.isConfigSupported(e)).supported}catch(e){return ct._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");return null===await this.getCodec()?null:"key"}}const Wo=e=>-(e??-1/0),Ho=e=>-e,Vo=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when 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i=e;if(t?.filter){const r=e.map(e=>t.filter(e));if(r.some(e=>Xe(e))){const t=await Promise.all(r);i=e.filter((e,i)=>t[i])}else i=e.filter((e,t)=>r[t])}if(!t?.sortBy)return i;const r=i.map(e=>t.sortBy(e)),a=r.some(e=>Xe(e))?await Promise.all(r):r;return i.map((e,t)=>({track:e,sortValue:a[t]})).sort((e,t)=>{const i=Array.isArray(e.sortValue)?e.sortValue:[e.sortValue],r=Array.isArray(t.sortValue)?t.sortValue:[t.sortValue],a=Math.max(i.length,r.length);for(let s=0;s<a;s++){const e=i[s]??0,t=r[s]??0;if(e!==t)return e-t}return 0}).map(e=>e.track)},Xo=(e,t)=>{const i=1e6,r=1+1e-9,a=[12,15,20,24e3/1001,24,25,3e4/1001,30,48,50,6e4/1001,60,100,12e4/1001,120,144,240];if(e.length<2)return null;const s=new Float64Array(e.length-1);for(let T=1;T<e.length;T++){const t=e[T]-e[T-1];if(!(t>0))return null;s[T-1]=t}const n=s.slice();n.sort();let o=n[Math.floor(.05*n.length)];for(let T=0;T<6;T++){let e=0,t=0;for(const a of s){const i=Math.max(1,Math.round(a/o));Math.abs(a-i*o)>=r||(e+=a,t+=i)}if(0===t)return null;const i=e/t;if(Math.abs(i-o)<=1e-12*Math.max(1,o)){o=i;break}o=i}let c=0,l=0,u=0;for(const T of s){const e=Math.max(1,Math.round(T/o));Math.abs(T-e*o)>=r||(c++,l+=T,u+=e)}if(c/s.length<.98)return null;o=l/u;const h=1/Math.min(u,1e3),d=Math.max(Number.EPSILON,o-h),f=o+h,m=t/f,p=t/d,g=t/o;let k=null,y=1/0;for(const T of a){if(T<m||T>p)continue;const e=Math.abs(T/g-1);e<y&&(k=T,y=e)}if(null===k){const e=$o(d,f,i),r=$o(m,p,i);if(r&&(!e||r.den<e.den||r.den===e.den&&r.num<=e.num))k=r.num/r.den;else{if(!e)return null;k=t*e.den/e.num}}const b=t/k;let w=0;for(const T of s){const e=Math.max(1,Math.round(T/b));Math.abs(T-e*b)<r&&w++}return w/s.length<.98?null:k},$o=(e,t,i)=>{for(let r=1;r<=i;r++){const i=Math.floor(e*r)+1;if(i/r<t)return it({num:i,den:r})}return null},Go=e=>{const t=[24/1.001,30/1.001,60/1.001,120/1.001],i=[12,15,20,24,25,30,48,50,60,100,120,144,240];for(const s of t)if(Math.abs(s/e-1)<=5e-4)return s;let r=e,a=1/0;for(const s of i){const t=Math.abs(s/e-1);t<=.025&&t<a&&(r=s,a=t)}return r};Ye();const Qo=2;class Yo extends st{get disposed(){return this._disposed}constructor(e){if(super(),this._demuxerPromise=null,this._format=null,this._trackBackingsCache=null,this._backingToTrack=new Map,this._disposed=!1,this._nextSourceCacheAge=0,this._sourceRefs=[],this._sourceCache=[],this._sourceCachePromises=[],this._onFormatDetermined=null,!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(!Array.isArray(e.formats)||e.formats.some(e=>!(e instanceof dn)))throw new TypeError("options.formats must be an array of InputFormat.");if(!(e.source instanceof Os||e.source instanceof Ls))throw new TypeError("options.source must be a Source or SourceRef.");if(e.source instanceof Os&&e.source._disposed)throw new TypeError("options.source must not be a disposed Source.");if(void 0!==e.initInput&&!(e.initInput instanceof Yo))throw new TypeError("options.initInput, when provided, must be an Input.");void 0!==e.formatOptions&&((e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(`${t}, when provided, must be an object.`);if(void 0!==e.isobmff){if(!e.isobmff||"object"!==typeof e.isobmff)throw new TypeError(`${t}.isobmff, when provided, must be an object.`);if(void 0!==e.isobmff.resolveKeyId&&"function"!==typeof e.isobmff.resolveKeyId)throw new TypeError(`${t}.isobmff.resolveKeyId, when provided, must be a function.`)}if(void 0!==e.hls){if(!e.hls||"object"!==typeof e.hls)throw new TypeError(`${t}.hls, when provided, must be an object.`);if(void 0!==e.hls.offsetTimestampsByDateTime&&"boolean"!==typeof e.hls.offsetTimestampsByDateTime)throw new TypeError(`${t}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}})(e.formatOptions,"formatOptions"),this._formats=e.formats,this._initInput=e.initInput??null,this._formatOptions=e.formatOptions??{},e.source instanceof Os?this._rootRef=e.source.ref():this._rootRef=e.source,this._sourceRefs.push(this._rootRef)}get _rootSource(){return this._rootRef.source}async _getSourceUncached(e){j(this._rootSource instanceof zs);const t=await this._rootSource._resolveRequest(e);return this._emit("source",{source:t.source,request:e,isRoot:e.isRoot}),t}_getSourceCached(e,t=1){const i=this._sourceCache.find(i=>i.cacheGroup===t&&Us(i.request,e));if(i)return i.age++,Promise.resolve(i.sourceRef.source.ref());const r=this._sourceCachePromises.find(i=>i.cacheGroup===t&&Us(i.request,e));if(r)return r.promise.then(e=>e.sourceRef.source.ref());const a=(async()=>{const i=await this._getSourceUncached(e);if(et(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount)>=4){const e=tt(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount?e.age:1/0);j(-1!==e);const i=this._sourceCache[e];this._sourceCache.splice(e,1),i.sourceRef.free(),ye(this._sourceRefs,i.sourceRef)}this._sourceRefs.push(i);const r=this._sourceCachePromises.findIndex(t=>t.request===e);j(-1!==r),this._sourceCachePromises.splice(r,1);return{request:e,sourceRef:i,age:this._nextSourceCacheAge++,cacheGroup:t}})();return this._sourceCachePromises.push({request:e,cacheGroup:t,promise:a}),a.then(e=>{const t=e.sourceRef.source.ref();return this._sourceCache.push(e),t})}_getDemuxer(){return this._demuxerPromise??(this._demuxerPromise=(async()=>{this._reader=new ec(this._rootSource),this._emit("source",{source:this._rootSource,request:null,isRoot:!0});for(const e of this._formats){if(await e._canReadInput(this))return this._format=e,this._onFormatDetermined?.(e),e._createDemuxer(this)}throw new Jo})())}get source(){return this._rootSource}async getFormat(){return await this._getDemuxer(),j(this._format),this._format}async canRead(){try{return await this._getDemuxer(),!0}catch(e){if(e instanceof Jo)return!1;throw e}}async getFirstTimestamp(e){e??(e=await this.getTracks());const t=e.filter(e=>null!==e);if(0===t.length)return 0;const i=await Promise.all(t.map(e=>e._backing.getFirstPacket({metadataOnly:!0}))),r=Math.min(...i.map(e=>e?.timestamp??1/0));return r===1/0?0:r}async computeDuration(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e);if(0===i.length)return 0;const r=await Promise.all(i.map(e=>e.computeDuration(t)));return Math.max(...r)}async getDurationFromMetadata(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e),r=(await Promise.all(i.map(e=>e.getDurationFromMetadata(t)))).filter(e=>null!==e);return 0===r.length?null:Math.max(...r)}async getTracks(e){e&&(e=Vo(e));const t=(await this._getTrackBackings()).map(e=>this._wrapBackingAsTrack(e));return Ko(t,e)}async getVideoTracks(e){e&&(e=Vo(e));const t=(await this.getTracks()).filter(e=>e.isVideoTrack());return Ko(t,e)}async getAudioTracks(e){e&&(e=Vo(e));const t=(await this.getTracks()).filter(e=>e.isAudioTrack());return Ko(t,e)}async getPrimaryVideoTrack(e){e&&(e=Vo(e));const t=jo(e,{sortBy:async e=>[Ho((await e.getDisposition()).default),Ho(await e.hasPairableAudioTrack()),Ho(!(await e.hasOnlyKeyPackets())),Wo(await e.getBitrate())]});return(await this.getVideoTracks(t))[0]??null}async getPrimaryAudioTrack(e){e&&(e=Vo(e));const t=await this.getPrimaryVideoTrack(),i=jo(e,{sortBy:async e=>[Ho(!t||e.canBePairedWith(t)),Ho((await e.getDisposition()).default),Wo(await e.getBitrate())]});return(await this.getAudioTracks(i))[0]??null}async _getTrackBackings(){const e=await this._getDemuxer();return this._trackBackingsCache??(this._trackBackingsCache=await e.getTrackBackings())}_wrapBackingAsTrack(e){const t=this._backingToTrack.get(e);if(t)return t;const i="video"===e.getType()?new Uo(this,e):new qo(this,e);return this._backingToTrack.set(e,i),i}async getMimeType(){return(await this._getDemuxer()).getMimeType()}async getMetadataTags(){return(await this._getDemuxer()).getMetadataTags()}dispose(){if(!this._disposed){this._disposed=!0;for(const e of 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tc(r.bytes,r.view,r.offset,e,i):null}requestSliceRange(e,t,i){if(this.source._disposed)throw new Zo;if(e<0)return null;if(null!==this.fileSizeNonStrict)return this.requestSlice(e,Ie(this.fileSizeNonStrict-e,t,i));{const r=this.requestSlice(e,i),a=r=>r||(j(null!==this.fileSizeNonStrict),this.requestSlice(e,Ie(this.fileSizeNonStrict-e,t,i)));return Xe(r)?r.then(a):a(r)}}requestEntireFile(){if(null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);return(async()=>{const e=[];let t=0;for(;;){if(1===e.length&&null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);let i=this.requestSliceRange(t,0,1024);if(Xe(i)&&(i=await i),!i||0===i.length)break;const r=rc(i,i.length);e.push(r),t+=i.length}const i=new Uint8Array(t);let r=0;for(const a of e)i.set(a,r),r+=a.length;return new tc(i,J(i),0,0,t)})()}}class tc{constructor(e,t,i,r,a){this.bytes=e,this.view=t,this.offset=i,this.start=r,this.end=a,this.bufferPos=r-i}static tempFromBytes(e){return new tc(e,J(e),0,0,e.length)}get length(){return this.end-this.start}get filePos(){return this.offset+this.bufferPos}set filePos(e){this.bufferPos=e-this.offset}get remainingLength(){return Math.max(this.end-this.filePos,0)}skip(e){this.bufferPos+=e}slice(e,t=this.end-e){if(e<this.start||e+t>this.end)throw new RangeError("Slicing outside of original slice.");return new tc(this.bytes,this.view,this.offset,e,e+t)}}const ic=(e,t)=>{if(e.filePos<e.start||e.filePos+t>e.end)throw new RangeError(`Tried reading [${e.filePos}, ${e.filePos+t}), but slice is [${e.start}, ${e.end}). This is likely an internal error, please report it alongside the file that caused it.`)},rc=(e,t)=>{ic(e,t);const i=e.bytes.subarray(e.bufferPos,e.bufferPos+t);return e.bufferPos+=t,i},ac=e=>(ic(e,1),e.view.getUint8(e.bufferPos++)),sc=(e,t)=>{ic(e,2);const i=e.view.getUint16(e.bufferPos,t);return e.bufferPos+=2,i},nc=e=>{ic(e,2);const t=e.view.getUint16(e.bufferPos,!1);return e.bufferPos+=2,t},oc=e=>{ic(e,3);const t=Se(e.view,e.bufferPos,!1);return e.bufferPos+=3,t},cc=e=>{ic(e,2);const t=e.view.getInt16(e.bufferPos,!1);return e.bufferPos+=2,t},lc=(e,t)=>{ic(e,4);const i=e.view.getUint32(e.bufferPos,t);return e.bufferPos+=4,i},uc=e=>{ic(e,4);const t=e.view.getUint32(e.bufferPos,!1);return e.bufferPos+=4,t},hc=e=>{ic(e,4);const t=e.view.getUint32(e.bufferPos,!0);return e.bufferPos+=4,t},dc=e=>{ic(e,4);const t=e.view.getInt32(e.bufferPos,!1);return e.bufferPos+=4,t},fc=(e,t)=>{let i,r;return t?(i=lc(e,!0),r=lc(e,!0)):(r=lc(e,!1),i=lc(e,!1)),4294967296*r+i},mc=e=>4294967296*uc(e)+uc(e),pc=e=>4294967296*dc(e)+uc(e),gc=e=>{const t=hc(e),i=(e=>{ic(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},kc=e=>{ic(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},yc=e=>{ic(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},bc=(e,t)=>{ic(e,t);let i="";for(let r=0;r<t;r++)i+=String.fromCharCode(e.bytes[e.bufferPos++]);return i},wc=(e,t,i)=>Z.decode(rc(e,t)).split("\n").map(e=>e.trim()).filter(e=>e.length>0&&!i?.ignore?.(e));var Tc,Sc,vc,Pc;(Sc=Tc||(Tc={}))[Sc.Unsynchronisation=128]="Unsynchronisation",Sc[Sc.ExtendedHeader=64]="ExtendedHeader",Sc[Sc.ExperimentalIndicator=32]="ExperimentalIndicator",Sc[Sc.Footer=16]="Footer",(Pc=vc||(vc={}))[Pc.ISO_8859_1=0]="ISO_8859_1",Pc[Pc.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",Pc[Pc.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",Pc[Pc.UTF_8=3]="UTF_8";const Ic=128,xc=10,Cc=["Blues","Classic rock","Country","Dance","Disco","Funk","Grunge","Hip-hop","Jazz","Metal","New age","Oldies","Other","Pop","Rhythm and blues","Rap","Reggae","Rock","Techno","Industrial","Alternative","Ska","Death metal","Pranks","Soundtrack","Euro-techno","Ambient","Trip-hop","Vocal","Jazz & funk","Fusion","Trance","Classical","Instrumental","Acid","House","Game","Sound clip","Gospel","Noise","Alternative rock","Bass","Soul","Punk","Space","Meditative","Instrumental pop","Instrumental rock","Ethnic","Gothic","Darkwave","Techno-industrial","Electronic","Pop-folk","Eurodance","Dream","Southern rock","Comedy","Cult","Gangsta","Top 40","Christian rap","Pop/funk","Jungle music","Native US","Cabaret","New wave","Psychedelic","Rave","Showtunes","Trailer","Lo-fi","Tribal","Acid punk","Acid jazz","Polka","Retro","Musical","Rock 'n' roll","Hard rock","Folk","Folk rock","National folk","Swing","Fast fusion","Bebop","Latin","Revival","Celtic","Bluegrass","Avantgarde","Gothic rock","Progressive rock","Psychedelic rock","Symphonic rock","Slow rock","Big band","Chorus","Easy listening","Acoustic","Humour","Speech","Chanson","Opera","Chamber music","Sonata","Symphony","Booty bass","Primus","Porn groove","Satire","Slow jam","Club","Tango","Samba","Folklore","Ballad","Power ballad","Rhythmic Soul","Freestyle","Duet","Punk rock","Drum solo","A cappella","Euro-house","Dance hall","Goa music","Drum & bass","Club-house","Hardcore techno","Terror","Indie","Britpop","Negerpunk","Polsk punk","Beat","Christian gangsta rap","Heavy metal","Black metal","Crossover","Contemporary Christian","Christian rock","Merengue","Salsa","Thrash metal","Anime","Jpop","Synthpop","Christmas","Art rock","Baroque","Bhangra","Big beat","Breakbeat","Chillout","Downtempo","Dub","EBM","Eclectic","Electro","Electroclash","Emo","Experimental","Garage","Global","IDM","Illbient","Industro-Goth","Jam Band","Krautrock","Leftfield","Lounge","Math rock","New romantic","Nu-breakz","Post-punk","Post-rock","Psytrance","Shoegaze","Space rock","Trop rock","World music","Neoclassical","Audiobook","Audio theatre","Neue Deutsche Welle","Podcast","Indie rock","G-Funk","Dubstep","Garage rock","Psybient"],Bc=(e,t)=>{var i;const r=e.filePos;t.raw??(t.raw={}),(i=t.raw).TAG??(i.TAG=rc(e,Ic-3)),e.filePos=r;const a=Ec(e,30);a&&(t.title??(t.title=a));const s=Ec(e,30);s&&(t.artist??(t.artist=s));const n=Ec(e,30);n&&(t.album??(t.album=n));const o=Ec(e,4),c=Number.parseInt(o,10);Number.isInteger(c)&&c>0&&(t.date??(t.date=new Date(String(c))));const l=rc(e,30);let u;if(0===l[28]&&0!==l[29]){const i=l[29];i>0&&(t.trackNumber??(t.trackNumber=i)),e.skip(-30),u=Ec(e,28),e.skip(2)}else e.skip(-30),u=Ec(e,30);u&&(t.comment??(t.comment=u));const h=ac(e);h<Cc.length&&(t.genre??(t.genre=Cc[h]))},Ec=(e,t)=>{const i=rc(e,t),r=$e(i.indexOf(0),i.length),a=i.subarray(0,r);let s="";for(let n=0;n<a.length;n++)s+=String.fromCharCode(a[n]);return s.trimEnd()},_c=e=>{const t=e.filePos,i=bc(e,3),r=ac(e),a=ac(e),s=ac(e),n=uc(e);if("ID3"!==i||255===r||255===a||0!==(2155905152&n))return e.filePos=t,null;let o=Ji(n);return s&Tc.Footer&&(o+=xc),{majorVersion:r,revision:a,flags:s,size:o}},Rc=(e,t,i)=>{var r,a,s,n,o;if(![2,3,4].includes(t.majorVersion))return void ct._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Tc.Footer?t.size-xc:t.size,l=rc(e,c),u=new Fc(t,l);if(t.flags&Tc.Unsynchronisation&&3===t.majorVersion&&u.ununsynchronizeAll(),t.flags&Tc.ExtendedHeader){const e=u.readU32();3===t.majorVersion?u.pos+=e:u.pos+=e-4}for(;u.pos<=u.bytes.length-u.frameHeaderSize();){const e=u.readId3V2Frame();if(!e)break;const c=u.pos,l=u.pos+e.size;let h=!1,d=!1,f=!1;if(3===t.majorVersion?(h=!!(64&e.flags),d=!!(128&e.flags)):4===t.majorVersion&&(h=!!(4&e.flags),d=!!(8&e.flags),f=!!(2&e.flags)||!!(t.flags&Tc.Unsynchronisation)),h)ct._warn(`Skipping encrypted ID3v2 frame ${e.id}`),u.pos=l;else if(d)ct._warn(`Skipping compressed ID3v2 frame ${e.id}`),u.pos=l;else{if(f&&u.ununsynchronizeRegion(u.pos,l),i.raw??(i.raw={}),"TXXX"===e.id){const e=(r=i.raw).TXXX??(r.TXXX={}),t=u.readId3V2TextEncoding(),a=u.readId3V2Text(t,l),s=u.readId3V2Text(t,l);e[a]??(e[a]=s)}else"T"===e.id[0]?(a=i.raw)[s=e.id]??(a[s]=u.readId3V2EncodingAndText(l)):(n=i.raw)[o=e.id]??(n[o]=u.readBytes(e.size));switch(u.pos=c,e.id){case"TIT2":case"TT2":i.title??(i.title=u.readId3V2EncodingAndText(l));break;case"TIT3":case"TT3":i.description??(i.description=u.readId3V2EncodingAndText(l));break;case"TPE1":case"TP1":i.artist??(i.artist=u.readId3V2EncodingAndText(l));break;case"TALB":case"TAL":i.album??(i.album=u.readId3V2EncodingAndText(l));break;case"TPE2":case"TP2":i.albumArtist??(i.albumArtist=u.readId3V2EncodingAndText(l));break;case"TRCK":case"TRK":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.trackNumber??(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.tracksTotal??(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.discNumber??(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.discsTotal??(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=u.readId3V2EncodingAndText(l);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==Cc[e]){i.genre??(i.genre=Cc[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==Cc[e]){i.genre??(i.genre=Cc[e]);break}}i.genre??(i.genre=e)}break;case"TDRC":case"TDAT":{const e=u.readId3V2EncodingAndText(l),t=new Date(e);Number.isNaN(t.getTime())||(i.date??(i.date=t))}break;case"TYER":case"TYE":{const e=u.readId3V2EncodingAndText(l),t=Number.parseInt(e,10);Number.isInteger(t)&&(i.date??(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.lyrics??(i.lyrics=u.readId3V2Text(e,l))}break;case"COMM":case"COM":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.comment??(i.comment=u.readId3V2Text(e,l))}break;case"APIC":case"PIC":{const e=u.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=u.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=u.readId3V2Text(e,l);const a=u.readU8(),s=u.readId3V2Text(e,l).trimEnd(),n=l-u.pos;if(n>=0){const e=u.readBytes(n);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===a?"coverFront":4===a?"coverBack":"unknown",description:s})}}break;default:u.pos+=e.size}u.pos=l}}};class Fc{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 2===this.header.majorVersion?6:10}ununsynchronizeAll(){const e=[];for(let t=0;t<this.bytes.length;t++){const i=this.bytes[t];if(e.push(i),255===i&&t!==this.bytes.length-1){0===this.bytes[t]&&t++}}this.bytes=new Uint8Array(e),this.view=new DataView(this.bytes.buffer)}ununsynchronizeRegion(e,t){const i=[];for(let s=e;s<t;s++){const e=this.bytes[s];if(i.push(e),255===e&&s!==t-1){0===this.bytes[s+1]&&s++}}const r=this.bytes.subarray(0,e),a=this.bytes.subarray(t);this.bytes=new Uint8Array(r.length+i.length+a.length),this.bytes.set(r,0),this.bytes.set(i,r.length),this.bytes.set(a,r.length+i.length),this.view=new DataView(this.bytes.buffer)}readBytes(e){const t=this.bytes.subarray(this.pos,this.pos+e);return this.pos+=e,t}readU8(){const e=this.view.getUint8(this.pos);return this.pos+=1,e}readU16(){const e=this.view.getUint16(this.pos,!1);return this.pos+=2,e}readU24(){const e=this.view.getUint16(this.pos,!1),t=this.view.getUint8(this.pos+2);return this.pos+=3,256*e+t}readU32(){const e=this.view.getUint32(this.pos,!1);return this.pos+=4,e}readAscii(e){let t="";for(let i=0;i<e;i++)t+=String.fromCharCode(this.view.getUint8(this.pos+i));return this.pos+=e,t}readId3V2Frame(){if(2===this.header.majorVersion){const e=this.readAscii(3);if("\0\0\0"===e)return null;return{id:e,size:this.readU24(),flags:0}}{const e=this.readAscii(4);if("\0\0\0\0"===e)return null;const t=this.readU32();let i=4===this.header.majorVersion?Ji(t):t;const r=this.readU16(),a=this.pos,s=e=>{const t=this.pos+e;if(t>this.bytes.length)return!1;if(t<=this.bytes.length-this.frameHeaderSize()){this.pos+=e;const t=this.readAscii(4);if("\0\0\0\0"!==t&&!/[0-9A-Z]{4}/.test(t))return!1}return!0};if(!s(i)){const e=4===this.header.majorVersion?t:Ji(t);s(e)&&(i=e)}return this.pos=a,{id:e,size:i,flags:r}}}readId3V2TextEncoding(){const e=this.readU8();if(e>3)throw new Error(`Unsupported text encoding: ${e}`);return e}readId3V2Text(e,t){const i=this.pos,r=this.readBytes(t-this.pos);switch(e){case vc.ISO_8859_1:{let e="";for(let t=0;t<r.length;t++){const a=r[t];if(0===a){this.pos=i+t+1;break}e+=String.fromCharCode(a)}return e}case vc.UTF_16_WITH_BOM:if(255===r[0]&&254===r[1]){const e=new TextDecoder("utf-16le"),t=$e(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}if(254===r[0]&&255===r[1]){const e=new TextDecoder("utf-16be"),t=$e(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}{const e=$e(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),Z.decode(r.subarray(0,e))}case vc.UTF_16_BE_NO_BOM:{const e=new TextDecoder("utf-16be"),t=$e(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(0,t))}case vc.UTF_8:{const e=$e(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),Z.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class Ac{constructor(e){this.host=e,this.closed=!1,this.resumes=new WeakMap}ensure(e){if(this.closed)return null;if(this.host.audioContext)return this.host.audioContext;const t=window.AudioContext||window.webkitAudioContext;let i;try{i=new t({sampleRate:e})}catch{i=new t}if(this.closed)return i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null;let r=null;try{r=i.createGain(),r.connect(i.destination);const e=this.host.muted?0:this.host.volume;return r.gain.value=e*e,this.closed?(r.disconnect(),i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null):(this.host.audioContext=i,this.host.gainNode=r,i)}catch(a){try{r?.disconnect()}catch(s){console.warn("MediaBunny gain setup cleanup:",s)}throw i.close().catch(e=>console.warn("MediaBunny context setup cleanup:",e)),a}}updateGain(){if(!this.host.gainNode)return;const e=this.host.muted?0:this.host.volume;this.host.gainNode.gain.value=e*e}resume(e){const t=this.resumes.get(e);if(t)return t;const i=e.resume();this.resumes.set(e,i);const r=()=>{this.resumes.get(e)===i&&this.resumes.delete(e)};return i.then(r,r),i}destroy(){if(this.closed)return;this.closed=!0;const{audioContext:e,gainNode:t}=this.host;this.host.audioContext=null,this.host.gainNode=null;try{t?.disconnect()}finally{e&&e.close().catch(e=>console.warn("MediaBunny context close error:",e))}}}class Mc{constructor(e){this.host=e}release(e,t){this.host.queuedNodes.delete(e),e.onended=null;let i,r=!1;try{t&&e.stop()}catch(a){r=!0,i=a}try{e.disconnect()}catch(a){r||(r=!0,i=a)}if(r)throw i}stop(){const e=[];for(const i of[...this.host.queuedNodes])try{this.release(i,!0)}catch(t){e.push(t)}if(e.length)throw e[0]}schedule({buffer:e,timestamp:t}){const i=this.host.audioContext,r=this.host.gainNode;if(!i||!r)return;const a=function(e,t,i,r){const a=e.audioContextStartTime+(t-e.playbackTimeAtStart)/e.playbackRate,s=(a+i/e.playbackRate-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;return{startAt:Math.max(a,r),offset:a<r?(r-a)*e.playbackRate:null,endMediaTime:s}}(this.host,t,e.duration,i.currentTime);if(null!==a.offset&&a.offset>=e.duration)return;const s=i.createBufferSource();this.host.queuedNodes.add(s);try{s.buffer=e,s.connect(r),s.playbackRate.value=this.host.playbackRate,s.onended=()=>{if(this.host.queuedNodes.has(s))try{this.release(s,!1)}catch(e){console.warn("MediaBunny ended node cleanup:",e)}},null===a.offset?s.start(a.startAt):s.start(a.startAt,a.offset),this.host.latestScheduledEndTime=Math.max(this.host.latestScheduledEndTime,a.endMediaTime)}catch(n){try{this.release(s,!0)}catch(o){console.warn("MediaBunny audio node cleanup:",o)}throw n}}}const Dc=Symbol("cancelled");class Nc{constructor(){this.cancelled=!1,this.waits=new Set,this.timers=new Map}wait(e){return new Promise((t,i)=>{const r=()=>t(Dc);this.cancelled?r():this.waits.add(r),e.then(e=>{this.waits.delete(r),t(e)},e=>{this.waits.delete(r),i(e)})})}delay(e){return this.cancelled?Promise.resolve(!1):new Promise(t=>{const i=setTimeout(()=>{this.timers.delete(i),t(!this.cancelled)},e);this.timers.set(i,t)})}cancel(){if(!this.cancelled){this.cancelled=!0;for(const e of this.waits)e();this.waits.clear();for(const[e,t]of this.timers)clearTimeout(e),t(!1);this.timers.clear()}}}function Oc(e,t,i){for(const r of i){if(!t())return;e.emit(r)}}class Lc{constructor(e,t,i){this.host=e,this.contexts=t,this.nodes=i,this.task=null,this.closing=new WeakMap}async stopIterator(){const e=this.host.audioIterator;if(this.host.audioIterator=null,!e)return;let t=this.closing.get(e);t||(t=Promise.resolve().then(()=>e.return()).then(()=>{}),this.closing.set(e,t)),await t}cancel(){this.task?.cancel(),this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e))}async run(e){if(this.host.asyncId!==e)return;this.cancel();const t=this.host.audioSink,i=this.host.audioContext;if(!t||!i||this.host.paused||this.host.asyncId!==e)return;const r=new Nc;this.task=r;let a=null;const s=()=>!r.cancelled&&this.task===r&&this.host.asyncId===e&&!this.host.paused&&this.host.audioContext===i&&(!a||this.host.audioIterator===a);try{for(a=t.buffers(this.host.currentTime),this.host.audioIterator=a;s();){const e=[];let t=!1;for(let i=0;i<16;i++){const i=await r.wait(a.next());if(i===Dc||!s())return;if(i.done){t=!0;break}e.push(i.value)}if(e.length&&"suspended"===i.state){if(await r.wait(this.contexts.resume(i))===Dc||!s())return;Oc(this.host.events,s,["canplay","playing"])}for(const i of e){if(!s())return;this.nodes.schedule(i)}if(t)return;if(!(await r.delay(0))||!s())return;for(;this.host.latestScheduledEndTime-this.host.currentTime>1;)if(!(await r.delay(50))||!s())return}}catch(n){if(s())throw n}finally{r.cancel(),this.task===r&&(this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e)))}}}class zc{constructor(e,h){N(this,u),N(this,t,!1),N(this,i,0),N(this,r),N(this,a),N(this,s),N(this,n,null),N(this,o,null),N(this,c,null),N(this,l),this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set,O(this,r,new Ac(this)),O(this,a,new Mc(this)),O(this,s,new Lc(this,D(this,r),D(this,a))),O(this,l,h)}get currentTime(){return(e=this).paused||!e.audioContext?e.playbackTimeAtStart:(e.audioContext.currentTime-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;var e}ensureAudioContext(e){D(this,r).ensure(e)}updateGain(){D(this,r).updateGain()}stopQueuedNodes(){D(this,a).stop()}async stopIterator(){await D(this,s).stopIterator()}handleNoAudioTrack(){D(this,t)||(this.audioSink=null,this.ensureAudioContext())}cancelPending(){z(this,i)._++;try{this.pause()}finally{O(this,c,null),this.input=null,this.audioSink=null}}async load(e,r){if(D(this,t))return;this.cancelPending();const a=D(this,i);this.playbackTimeAtStart=0,this.audioContextStartTime=0,this.latestScheduledEndTime=0;const s=Promise.resolve().then(()=>L(this,u,h).call(this,e,a,r));O(this,c,s);try{await s}finally{D(this,c)===s&&O(this,c,null)}}async runIterator(e){D(this,t)||await D(this,s).run(e)}async play(){if(D(this,t))return;if(D(this,o))return D(this,o);if(!this.paused)return;const e=new Nc;O(this,n,e);const r=D(this,i),a=L(this,u,f).call(this,e,r);O(this,o,a);try{await a}finally{D(this,n)===e&&(O(this,n,null),O(this,o,null))}}pause(){this.paused||(this.playbackTimeAtStart=this.currentTime),this.paused=!0,this.asyncId++,D(this,n)?.cancel(),O(this,n,null),O(this,o,null),D(this,s).cancel(),this.stopQueuedNodes()}async seek(e){if(D(this,t))return;const i=!this.paused;D(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=this.audioContext?.currentTime??0,this.latestScheduledEndTime=this.playbackTimeAtStart;const r=++this.asyncId;i&&L(this,u,d).call(this,r)}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){if(D(this,t)||e===this.playbackRate)return;const i=this.currentTime;D(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=i,this.audioContextStartTime=this.audioContext?.currentTime??0,this.playbackRate=e,this.latestScheduledEndTime=i;const r=++this.asyncId;this.paused||L(this,u,d).call(this,r)}destroy(){if(D(this,t))return;O(this,t,!0),z(this,i)._++;const e=[];for(const t of[()=>this.pause(),()=>D(this,r).destroy()])try{t()}catch(a){e.push(a)}if(this.input=null,this.audioSink=null,O(this,c,null),e.length)throw e[0]}}t=new WeakMap,i=new WeakMap,r=new WeakMap,a=new WeakMap,s=new WeakMap,n=new WeakMap,o=new WeakMap,c=new WeakMap,l=new WeakMap,u=new WeakSet,h=async function({input:e,audioTrack:r,duration:a},s,n){const o=()=>!D(this,t)&&D(this,i)===s;if(o()){this.input=e,this.duration=a;try{const e=r&&null!==r.codec&&await r.canDecode();if(!o())return;if(e){if(this.ensureAudioContext(r.sampleRate),!o())return;this.audioSink=new No(r)}else this.handleNoAudioTrack();o()&&n?.()}catch(c){if(o())throw c}}},d=function(e){this.runIterator(e).catch(i=>{if(!D(this,t)&&e===this.asyncId){try{this.pause()}catch(r){console.warn("MediaBunny audio failure cleanup:",r)}try{D(this,l)?D(this,l).call(this,i):this.events.emit("error",i)}catch(r){console.warn("MediaBunny audio error listener:",r)}}})},f=async function(e,a){const s=()=>!D(this,t)&&!e.cancelled&&D(this,i)===a;try{const t=D(this,r).ensure();if(!t||!s())return;if("suspended"===t.state){if(await e.wait(D(this,r).resume(t))===Dc||!s())return}if(D(this,c)){if(await e.wait(D(this,c))===Dc||!s())return}this.audioContextStartTime=t.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1,L(this,u,d).call(this,++this.asyncId)}catch(n){if(s())throw n}};const Uc=new WeakMap;async function qc(e,t,i){const{input:r,loadSeq:a}=e;if(!e.media?.isHls||!r||e.destroyed)return;const s={};Uc.set(e,s);const n=()=>!e.destroyed&&e.loadSeq===a&&e.input===r&&Uc.get(e)===s;for(;n();){const a=e.media;if(!a?.isHls)return;let s;try{s=await i(r,a,t,n)}catch(o){if(!n())return;if(e.media===a)throw o;continue}if(!n())return;if(e.media===a){if(s)try{await e.replaceTracks(s)}catch(o){if(n())throw o}return}}}async function Wc(e,t,i,r){const a=await e.getVideoTracks();if(!r())return null;const s="auto"===i?await e.getPrimaryVideoTrack():a.find(e=>e.id===i)??t.videoTrack;if(!r()||!s)return null;let n=t.audioTrack,o=t.audioMode;return n&&s.canBePairedWith(n)||(n=await s.getPrimaryPairableAudioTrack(),o="auto"),{videoTrack:s,audioTrack:n,videoMode:"auto"===i?"auto":"manual",audioMode:o}}async function Hc(e,t,i,r){const a=await e.getAudioTracks();if(!r())return null;const s="auto"===i?t.videoTrack?await t.videoTrack.getPrimaryPairableAudioTrack():await e.getPrimaryAudioTrack():a.find(e=>e.id===i)??t.audioTrack;if(!r()||!s)return null;let n=t.videoTrack,o=t.videoMode;return n&&s.canBePairedWith(n)||(n=await s.getPrimaryPairableVideoTrack(),o="auto"),{videoTrack:n,audioTrack:s,videoMode:o,audioMode:"auto"===i?"auto":"manual"}}async function Vc(e){return await e.getAverageBitrate()??await e.getBitrate()??0}const jc=/\.m3u8(?:$|[?#])/i;function Kc(e){return"string"===typeof e&&jc.test(e)}function Xc(e){const t=function(e){return"string"===typeof e?new Ks(e):e instanceof Blob?new Hs(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new Gs(e):e??null}(e);return t?new Yo({source:t,formats:Kc(e)?On:Nn}):null}class $c{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){return this.controller?.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}async wait(e,t){try{await Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,e?.dispose()}cancel(){if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),this.controller?.abort(),this.disposeInput()}}}async function Gc({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),a=t||i,s=Boolean(a&&await a.isLive());let n=Number.NaN;return r.length>0&&(n=await e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==n||s||(n=await e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:n??Number.NaN}function Qc(){let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}}class Yc{constructor(e){this.host=e,this.wanted=!1,this.playing=null,this.seeking=null}operation(){return{...Qc(),source:this.host.loadSeq,complete:Qc()}}current(e,t){return!this.host.destroyed&&e.source===this.host.loadSeq&&this[t]===e}cancelPlay(){const e=this.playing;this.playing=null,e?.resolve()}invalidate(){this.cancelPlay(),this.wanted=!1;const e=this.seeking;this.seeking=null,e?.complete.resolve(),e?.resolve(),this.host.seeking=!1}ended(){this.wanted=!1,this.cancelPlay()}stop(){this.host.paused||(this.host.paused=!0,this.stopEngines(),this.host.events.emit("pause"))}stopEngines(){const e=[];for(const i of[()=>this.host.audio.pause(),()=>this.host.video.stop()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}pause(){this.wanted=!1,this.cancelPlay(),this.stop()}play(){if(this.host.destroyed)return Promise.resolve();if(this.wanted=!0,this.playing)return this.playing.promise;if(this.host.ended)return this.seek(0,!0);if(!this.host.paused&&!this.seeking)return Promise.resolve();const e=this.operation();return this.playing=e,this.runPlay(e).then(e.resolve,e.reject),e.promise}async runPlay(e){const t=()=>this.current(e,"playing")&&this.wanted;try{for(;this.seeking;)if(await this.seeking.complete.promise,!t())return;if(!t())return;if(this.host.paused=!1,await this.host.audio.play(),!t())return void(this.wanted&&!this.host.destroyed||this.host.audio.pause());this.host.video.start(this.host.audio),Oc(this.host.events,t,["play","playing"])}catch(i){if(!t())return;this.wanted=!1,this.host.paused=!0;try{this.stopEngines()}catch(r){console.warn("MediaBunny play cleanup error:",r)}throw i}finally{this.playing===e&&(this.playing=null)}}seek(e,t){return this.position(async t=>{const i=this.host.audio.seek(e),r=t()?this.host.video.seek(e):Promise.resolve();await Promise.all([i,r])},["seeked"],!1,t)}replace(e,t){return this.position(async i=>{e.duration=await Gc(e),i()&&(this.host.media=e,await Promise.all([this.host.video.load(e),this.host.audio.load(e)]),i()&&(await Promise.all([this.host.video.seek(t),this.host.audio.seek(t)]),i()&&(this.host.readyState=4,this.host.networkState=1)))},["loadedmetadata","durationchange","progress","loadeddata","canplay","canplaythrough","seeked"],!0)}position(e,t,i,r){if(this.host.destroyed)return Promise.resolve();this.wanted=r??(this.seeking?this.wanted:!this.host.paused),this.cancelPlay();const a=this.seeking,s=this.operation();return this.seeking=s,a?.complete.resolve(),a?.resolve(),this.runPosition(s,e,t,i).then(s.resolve,s.reject),s.promise}async runPosition(e,t,i,r){const a=()=>this.current(e,"seeking");let s=!1;try{if(r&&this.stop(),!a())return;if(this.host.ended=!1,this.host.seeking=!0,Oc(this.host.events,a,["seeking","waiting"]),!a())return;if(r||this.stop(),!a())return;if(await t(a),!a())return;if(this.host.seeking=!1,e.complete.resolve(),Oc(this.host.events,a,i),!a())return;this.seeking=null,s=this.wanted}catch(n){if(!a())return;throw this.host.seeking=!1,this.wanted=!1,this.cancelPlay(),this.host.reportError(n),n}finally{e.complete.resolve(),this.seeking===e&&(this.seeking=null)}s&&await this.play()}}const Jc=new WeakMap,Zc=new WeakMap;function el(e){const t=Zc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.next()).then(e=>e.value??null);Zc.set(e,i);const r=()=>{Zc.get(e)===i&&Zc.delete(e)};return i.then(r,r),i}function tl(e,t,i,r,a){const s=i?Math.max(.06,r/Math.max(1,a)):0;return i&&e<t-s?"skip":e<=t+s?"draw":"queue"}class il{constructor(){this.image=null}cancel(){this.image&&(this.image.onload=null,this.image.onerror=null,this.image=null)}draw(e,t,i,r){this.cancel();const a=new Image;this.image=a,a.onload=()=>{if(this.image===a&&t()){this.cancel();try{i(a)}catch(e){r(e)}}},a.onerror=()=>{this.image===a&&this.cancel()},a.src=e}}class rl{constructor(e,t,i,r){this.host=e,this.ready=t,this.draw=i,this.failure=r,this.stopped=!1,this.closed=!1,this.scheduled=null,this.fetching=null}current(e){return!this.closed&&!this.stopped&&this.host.asyncId===e}async update(e){const t=this.host.videoIterator;if(!t||!this.ready()||!this.current(e)||this.host.isFetching)return;const i={};this.fetching=i,this.host.isFetching=!0;const r=()=>this.current(e)&&this.host.videoIterator===t;try{for(;r();){const e=await el(t);if(!r()||!e)return;const i=this.host.audioClock?.currentTime;if(void 0===i)return;const a=tl(e.timestamp,i,this.host.dropLateFrames,this.host.avSyncTolerance,this.host.playbackRate);if("skip"!==a){if("draw"!==a)return void(this.host.nextFrame=e);this.draw(e)}}}catch(a){if(r())throw a}finally{this.fetching===i&&(this.fetching=null,this.host.isFetching=!1)}}request(e){this.update(e).catch(t=>{this.current(e)&&(this.stop(),this.report(t))})}report(e){try{this.failure(e)}catch(t){console.warn("MediaBunny video error listener:",t)}}cancelFrame(){null!==this.scheduled&&(cancelAnimationFrame(this.scheduled),this.scheduled=null)}schedule(e){if(!this.current(e))return;this.cancelFrame();const t=requestAnimationFrame(()=>{if(this.scheduled===t&&this.current(e)){this.scheduled=null;try{this.render()}catch(i){this.stop(),this.report(i)}}});this.scheduled=t,this.host.rafId=t}render(){const e=this.host.asyncId,t=()=>this.current(e);if(!t()||!this.host.audioClock)return;const i=this.host.audioClock.currentTime,r=Date.now();if(r-this.host.lastTimeUpdate>=this.host.timeupdateInterval){if(this.host.events.emit("timeupdate"),!t())return;this.host.lastTimeUpdate=r}if(this.ready()){if(Number.isFinite(this.host.duration)&&i>=this.host.duration){this.stop(),this.host.stalled=!1;const e=this.host.asyncId;return void Oc(this.host.events,()=>!this.closed&&this.host.asyncId===e,["ended","pause","canplay"])}if(this.host.nextFrame&&this.host.nextFrame.timestamp<=i){if(this.draw(this.host.nextFrame),this.host.nextFrame=null,this.request(e),this.host.stalled){if(Oc(this.host.events,t,["canplay","playing"]),!t())return;this.host.stalled=!1}}else this.host.nextFrame||(this.request(e),Number.isFinite(this.host.duration)&&i<this.host.duration&&!this.host.stalled&&(this.host.stalled=!0,this.host.events.emit("waiting")));this.schedule(e)}else this.schedule(e)}start(e){this.closed||(this.stop(),this.stopped=!1,this.host.audioClock=e,this.host.stalled=!1,this.host.nextFrame||this.request(this.host.asyncId),this.schedule(this.host.asyncId))}stop(){this.stopped=!0,this.host.asyncId++,this.cancelFrame(),this.fetching=null,this.host.isFetching=!1}destroy(){this.closed||(this.stop(),this.closed=!0)}}class al{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:a=.12,dropLateFrames:s=!1,poster:n="",preflightRange:o=!1,onError:c}){N(this,P),N(this,m,0),N(this,p,0),N(this,g,null),N(this,k,null),N(this,y,null),N(this,b,!1),N(this,w,!1),N(this,T,new il),N(this,S),N(this,v),this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=a,this.dropLateFrames=s,this.poster=n,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1,O(this,v,c),O(this,S,new rl(this,()=>!D(this,w),e=>L(this,P,E).call(this,e,!0),e=>L(this,P,C).call(this,e)))}async preflight(e,t,i){return async function(e,t,i,r,a=()=>!0){if(r?.aborted||!a())return!1;if(!t||"string"!==typeof e||Kc(e))return!0;try{const t=await fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if(r?.aborted||!a())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!(r?.aborted||!a())&&(console.warn("Preflight check failed:",s),!0)}}(e,this.preflightRange,this.events,t,i)}drawPoster(){if(D(this,b)||!this.poster||this.posterDrawn)return;const e=D(this,m);D(this,T).draw(this.poster,()=>L(this,P,I).call(this,e),e=>{this.clear(),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,L(this,P,x).call(this).drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e=>L(this,P,C).call(this,e))}async stopIterator(){const e=this.videoIterator;this.videoIterator=null,this.nextFrame=null,await function(e){if(!e)return Promise.resolve();const t=Jc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.return()).then(()=>{});return Jc.set(e,i),i}(e)}clear(){L(this,P,x).call(this).clearRect(0,0,this.canvas.width,this.canvas.height)}cancelPending(){z(this,m)._++,z(this,p)._++,this.stop(),L(this,P,B).call(this),D(this,T).cancel(),O(this,w,!1),O(this,g,null),O(this,k,null),O(this,y,null),this.videoSink=null,this.input=null}async load(e,t){if(D(this,b))return;this.cancelPending();const i=D(this,m),r=D(this,p);O(this,w,!0);const a=Promise.resolve().then(()=>L(this,P,_).call(this,e,i,r,t));O(this,g,a);try{await a}finally{D(this,g)===a&&O(this,g,null)}}handleNoVideoTrack(){D(this,b)||(this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster())}async resetIterator(e){if(D(this,b))return;const t=D(this,m),i=++z(this,p)._,r=D(this,g);this.stop(),D(this,T).cancel(),O(this,w,!0);try{r&&await r,await L(this,P,R).call(this,e,t,i)}catch(a){if(L(this,P,I).call(this,t)&&D(this,p)===i)throw L(this,P,B).call(this),a}finally{L(this,P,I).call(this,t)&&D(this,p)===i&&O(this,w,!1)}}async updateNextFrame(e){await D(this,S).update(e)}render(){D(this,S).render()}start(e){D(this,S).start(e)}stop(){D(this,S).stop()}async seek(e){await this.resetIterator(e)}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){D(this,b)||(O(this,b,!0),z(this,m)._++,D(this,S).destroy(),D(this,T).cancel(),L(this,P,B).call(this),this.posterDrawn=!1,O(this,k,null),O(this,y,null),this.videoSink=null,this.input=null,this.audioClock=null)}}m=new WeakMap,p=new WeakMap,g=new WeakMap,k=new WeakMap,y=new WeakMap,b=new WeakMap,w=new WeakMap,T=new WeakMap,S=new WeakMap,v=new WeakMap,P=new WeakSet,I=function(e){return!D(this,b)&&D(this,m)===e},x=function(){if(!this.ctx)throw new Error("Canvas 2D context is unavailable.");return this.ctx},C=function(e){D(this,b)||(L(this,P,B).call(this),D(this,v)?D(this,v).call(this,e):this.events.emit("error",e))},B=function(){this.stopIterator().catch(e=>console.warn("MediaBunny iterator cleanup error:",e))},E=function(e,t){D(this,T).cancel(),t&&this.clear(),L(this,P,x).call(this).drawImage(e.canvas,0,0)},_=async function(e,t,i,r){if(L(this,P,I).call(this,t))try{this.clear(),this.posterDrawn=!1;const{input:a,videoTrack:s,duration:n}=e;if(this.input=a,this.duration=n,!s)return this.handleNoVideoTrack(),void r?.();const o=null!==s.codec&&await s.canDecode();if(!L(this,P,I).call(this,t))return;if(!o)return this.handleNoVideoTrack(),void r?.();const c=await s.canBeTransparent();if(!L(this,P,I).call(this,t))return;O(this,k,()=>new Fo(s,{poolSize:2,fit:"contain",alpha:c})),this.videoSink=D(this,k).call(this),this.width=s.displayWidth,this.height=s.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,r?.(),L(this,P,I).call(this,t)&&await L(this,P,R).call(this,0,t,i)}catch(a){if(L(this,P,I).call(this,t))throw L(this,P,B).call(this),a}finally{L(this,P,I).call(this,t)&&D(this,p)===i&&O(this,w,!1)}},R=async function(e,t,i){if(!L(this,P,I).call(this,t)||D(this,p)!==i)return;L(this,P,B).call(this),D(this,k)&&this.videoSink===D(this,y)&&(this.videoSink=D(this,k).call(this));const r=this.videoSink;if(!r||!L(this,P,I).call(this,t))return;O(this,y,r);const a=r.canvases(e);this.videoIterator=a;const s=()=>L(this,P,I).call(this,t)&&D(this,p)===i&&this.videoIterator===a,n=await el(a);if(!s())return;const o=await el(a);s()&&(this.nextFrame=o,n?L(this,P,E).call(this,n,!1):this.drawPoster())};class sl{constructor({canvas:e,ctx:t,events:i,option:r={}}){N(this,F),this.events=i,this.option=r,this.audio=new zc(i,e=>{try{this.pause()}catch(t){console.warn("MediaBunny audio coordinator cleanup:",t)}this.reportError(e)}),this.video=new al({canvas:e,ctx:t,events:i,timeupdateInterval:r.timeupdateInterval??250,avSyncTolerance:r.avSyncTolerance??.12,dropLateFrames:r.dropLateFrames??!1,poster:r.poster??"",preflightRange:r.preflightRange??!1,onError:e=>{try{this.pause()}catch(t){console.warn("MediaBunny video failure cleanup:",t)}this.reportError(e)}}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,O(this,F,new Yc(this)),i.addEventListener("ended",()=>{this.destroyed||(this.ended=!0,this.paused=!0,D(this,F).ended(),this.audio.pause())})}async load(e){if(this.destroyed)return;const t=++this.loadSeq;if(D(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),this.loadSession?.cancel(),t!==this.loadSeq||this.destroyed)return;if(this.pause(),t!==this.loadSeq||this.destroyed)return;this.disposeInput();const i=new $c;this.loadSession=i,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,i.defer(()=>this.events.emit("waiting")),i.defer(()=>this.events.emit("loadstart"));const r=Number.isFinite(this.option.loadTimeout)?this.option.loadTimeout??0:0;try{await i.wait(this.performLoad(e,t,i),r)}catch(a){if(t!==this.loadSeq)return;const e=++this.loadSeq;if(D(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),i.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.reportError(a)}}async performLoad(e,t,i=this.loadSession){const r=()=>!this.destroyed&&t===this.loadSeq;if(!i||!(await this.video.preflight(e,i.signal,r))||!r())return;const a=Xc(e);if(!a)return this.video.handleNoVideoTrack(),void(r()&&this.audio.handleNoAudioTrack());i.own(a);const s=await async function(e,t){const i=await e.getPrimaryVideoTrack(),r=i?await i.getPrimaryPairableAudioTrack():await e.getPrimaryAudioTrack(),a=await Gc({input:e,videoTrack:i,audioTrack:r}),s=i||r,n=Kc(t);return{input:e,videoTrack:i,audioTrack:r,duration:a,isLive:!Number.isFinite(a)&&Boolean(s&&await s.isLive()),isHls:n,videoMode:n?"auto":"manual",audioMode:n?"auto":"manual"}}(a,e);if(!r())return;if(!s.videoTrack&&!s.audioTrack)throw this.video.handleNoVideoTrack(),this.video.duration=Number.NaN,this.audio.duration=Number.NaN,new Error("Input has no audio or video tracks.");this.input=a,this.media=s;const n=function(e,t){let i=!1,r=!1,a=!1;function s(s){t()&&!a&&("video"===s?i=!0:r=!0,i&&r&&(a=!0,e()))}return{video:()=>s("video"),audio:()=>s("audio")}}(()=>{this.readyState=1,Oc(this.events,r,["loadedmetadata","durationchange","progress"])},r);try{const e=this.video.load(s,n.video),t=r()?this.audio.load(s,n.audio):Promise.resolve();if(await Promise.all([e,t]),!r())return;this.readyState=4,this.networkState=1,Oc(this.events,r,["loadeddata","canplay","canplaythrough","progress"])}catch(o){if(!r())return;throw console.error("MediaBunny load error:",o),o}}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){this.loadSession?.disposeInput(),this.input=null,this.media=null}async replaceTracks(e){if(this.media&&!this.destroyed)return D(this,F).replace({...this.media,...e},this.currentTime)}async selectHlsQuality(e){return function(e,t){return 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i=t.readBits(3),r=t.readBits(1),{general_profile_space:a,general_tier_flag:s,general_profile_idc:n,general_profile_compatibility_flags:o,general_constraint_indicator_flags:c,general_level_idc:l}=Ht(t,i);$(t);const u=$(t);let h=0;3===u&&(h=t.readBits(1));const d=$(t),f=$(t);let m=d,p=f;if(t.readBits(1)){const e=$(t),i=$(t),r=$(t),a=$(t);let s=1,n=1;const o=0===h?u:0;1===o?(s=2,n=2):2===o&&(s=2,n=1),m-=(e+i)*s,p-=(r+a)*n}const g=$(t),k=$(t);$(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)$(t),b=$(t),$(t);$(t),$(t),$(t),$(t),$(t),$(t),t.readBits(1)&&t.readBits(1)&&Vt(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),$(t),$(t),t.skipBits(1));const w=$(t);if(jt(t,w),t.readBits(1)){const e=$(t);for(let i=0;i<e;i++)$(t),t.skipBits(1)}t.skipBits(1),t.skipBits(1);let T=2,S=2,v=2,P=0,I=0,x={num:1,den:1};if(t.readBits(1)){const e=Xt(t,i);x=e.pixelAspectRatio,T=e.colourPrimaries,S=e.transferCharacteristics,v=e.matrixCoefficients,P=e.fullRangeFlag,I=e.minSpatialSegmentationIdc}return{displayWidth:m,displayHeight:p,pixelAspectRatio:x,colourPrimaries:T,transferCharacteristics:S,matrixCoefficients:v,fullRangeFlag:P,maxDecFrameBuffering:b+1,spsMaxSubLayersMinus1:i,spsTemporalIdNestingFlag:r,generalProfileSpace:a,generalTierFlag:s,generalProfileIdc:n,generalProfileCompatibilityFlags:o,generalConstraintIndicatorFlags:c,generalLevelIdc:l,chromaFormatIdc:u,bitDepthLumaMinus8:g,bitDepthChromaMinus8:k,minSpatialSegmentationIdc:I}}catch(t){return ct._error("Error parsing HEVC SPS:",t),null}},Wt=e=>{try{const t=[],i=[],r=[],a=[];for(const c of Pt(e)){const s=e.subarray(c.offset,c.offset+c.length),n=Ut(s[0]);n===St.VPS_NUT?t.push(s):n===St.SPS_NUT?i.push(s):n===St.PPS_NUT?r.push(s):n!==St.PREFIX_SEI_NUT&&n!==St.SUFFIX_SEI_NUT||a.push(s)}if(0===i.length||0===r.length)return null;const s=qt(i[0]);if(!s)return null;let n=0;if(r.length>0){const e=r[0],t=new dt(Bt(e));t.skipBits(16),$(t),$(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),$(t),$(t),Q(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&$(t),Q(t),Q(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),a=t.readBits(1);n=i||a?i&&!a?2:!i&&a?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:St.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:St.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:St.PPS_NUT,nalUnits:r}]:[],...a.length?[{arrayCompleteness:1,nalUnitType:Ut(a[0][0]),nalUnits:a}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:n,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return ct._error("Error building HEVC Decoder Configuration Record:",t),null}},Ht=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),a=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const n=new Uint8Array(6);for(let u=0;u<6;u++)n[u]=e.readBits(8);const o=e.readBits(8),c=[],l=[];for(let u=0;u<t;u++)c.push(e.readBits(1)),l.push(e.readBits(1));if(t>0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u<t;u++)c[u]&&e.skipBits(88),l[u]&&e.skipBits(8);return{general_profile_space:i,general_tier_flag:r,general_profile_idc:a,general_profile_compatibility_flags:s,general_constraint_indicator_flags:n,general_level_idc:o}},Vt=e=>{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&Q(e);for(let t=0;t<i;t++)Q(e)}else $(e)}},jt=(e,t)=>{const i=[];for(let r=0;r<t;r++)i[r]=Kt(e,r,t,i)},Kt=(e,t,i,r)=>{let a=0,s=0,n=0;if(0!==t&&(s=e.readBits(1)),s){if(t===i){n=t-($(e)+1)}else n=t-1;e.readBits(1),$(e);const s=r[n]??0;for(let 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Mi)if(c<=h.maxPictureSize){l=h.level;break}const u=Zt[s];return{profile:r,level:l,bitDepth:a,chromaSubsampling:n,videoFullRangeFlag:o,colourPrimaries:u?.colourPrimaries??2,transferCharacteristics:u?.transferCharacteristics??2,matrixCoefficients:u?.matrixCoefficients??2}},ti=function*(e){const t=new dt(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*2**(7*i),!(128&r))break;if(7===i&&128&r)return null}return e>2**32-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const r=t.readBits(4),a=t.readBits(1),s=t.readBits(1);let n;if(t.skipBits(1),a&&t.skipBits(8),s){const e=i();if(null===e)return;n=e}else n=Math.floor(t.getBitsLeft()/8);j(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+n)},t.skipBits(8*n)}},ii=e=>{for(const{type:t,data:i}of ti(e)){if(1!==t)continue;const e=new dt(i),r=e.readBits(3);e.readBits(1);const a=e.readBits(1);let s=0,n=0,o=0;if(a)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let 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g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,w=1,T=1,S=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,w=0,T=0):(b=e.readBits(1),0===r?(w=1,T=1):1===r?(w=0,T=0):12===m?(w=e.readBits(1),T=w?e.readBits(1):0):(w=1,T=0),w&&T&&(S=e.readBits(2))),{profile:r,level:s,tier:n,bitDepth:m,monochrome:p,chromaSubsamplingX:w,chromaSubsamplingY:T,chromaSamplePosition:S,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},ri=e=>{if(e.length<36)return null;const t=J(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},ai=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],si=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in 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0}},qi=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:a}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=pt(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return a??"dtsc";if(t&&Ri.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},Wi=48e3,Hi=/^pcm-([usf])(\d+)(be)?$/,Vi=e=>{if(j(Ri.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=Hi.exec(e);let i;j(t),i="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:i,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?128:0}},ji=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":Oi.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":Li.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":Hi.test(e)?e:"webvtt"===e?"webvtt":null,Ki=[44100,48e3,32e3],Xi=[-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,32,40,48,56,64,80,96,112,128,160,192,224,256,320,-1,-1,32,48,56,64,80,96,112,128,160,192,224,256,320,384,-1,-1,32,64,96,128,160,192,224,256,288,320,352,384,416,448,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,32,48,56,64,80,96,112,128,144,160,176,192,224,256,-1],$i=1483304551,Gi=1231971951,Qi=(e,t)=>3===e?3===t?21:36:3===t?13:21,Yi=(e,t)=>{const i=e>>>24,r=e>>>16&255,a=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==a&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let n=0,o=0;16&r?n=8&r?0:1:(n=1,o=1);const c=r>>3&3,l=r>>1&3,u=(a>>2&3)%3,h=s>>6&3,d=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=Xi[16*n*4+16*l+(a>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=Ki[u]>>n+o,b=((e,t,i,r,a)=>0===t?0:1===t?Math.floor(144*i/(r<<e))+a:2===t?Math.floor(144*i/r)+a:4*(Math.floor(12*i/r)+a))(n,l,k,y,a>>1&1);if(null!==t&&t<b)return{header:null,bytesAdvanced:1};let w;return w=3===c?3===l?384:1152:3===l?384:2===l?1152:576,{header:{totalSize:b,mpegVersionId:c,lowSamplingFrequency:n,layer:l,bitrate:k,frequencyIndex:u,sampleRate:y,channel:h,modeExtension:d,copyright:f,original:m,emphasis:p,audioSamplesInFrame:w},bytesAdvanced:1}},Ji=e=>{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var Zi,er;(er=Zi||(Zi={}))[er.FrameCount=1]="FrameCount",er[er.FileSize=2]="FileSize",er[er.Toc=4]="Toc";const tr=e=>3===e?1:2;class ir{constructor(e){this.input=e}dispose(){}}const rr=new Uint8Array(0);class ar{constructor(e,t,i,r,a=-1,s,n){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=a,e===rr&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(a))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==n&&("object"!==typeof n||!n))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==n?.alpha&&!(n.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==n?.alphaByteLength&&(!Number.isInteger(n.alphaByteLength)||n.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=n??{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===rr}get microsecondTimestamp(){return Math.trunc(Me*this.timestamp)}get microsecondDuration(){return Math.trunc(Me*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const i=new Uint8Array(e.byteLength);return e.copyTo(i),new ar(i,e.type,e.timestamp/1e6,(e.duration??0)/1e6,void 0,void 0,t)}clone(e){if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==e?.data&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==e?.type&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==e?.timestamp&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==e?.duration&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==e?.sequenceNumber&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==e?.sideData&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new ar(e?.data??this.data,e?.type??this.type,e?.timestamp??this.timestamp,e?.duration??this.duration,e?.sequenceNumber??this.sequenceNumber,this.byteLength,e?.sideData??this.sideData)}}const sr=e=>{const t=J(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const a=de(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;t<r;t++)s.push(de(e.subarray(i,i+16))),i+=16}}const n=t.getUint32(i);return i+=4,{systemId:a,keyIds:s,data:e.slice(i,i+n)}},nr=(e,t)=>e.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i<e.length;i++)if(e[i]!==t[i])return!1;return!0})(e.data,t.data),or=e=>{let t=uc(e);const i=bc(e,4);let r=8;1===t&&(t=mc(e),r=16);const a=t-r;return a<0?null:{name:i,totalSize:t,headerSize:r,contentSize:a}},cr=e=>dc(e)/65536,lr=e=>dc(e)/1073741824,ur=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=ac(e);if(t|=127&i,0===(128&i))break}return t},hr=e=>{let t=nc(e);return e.skip(2),t=Math.min(t,e.remainingLength),Z.decode(rc(e,t))},dr=e=>{const t=or(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=uc(e);e.skip(4);const r=rc(e,t.contentSize-8);switch(i){case 1:return Z.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new lt(r,"image/jpeg");case 14:return new lt(r,"image/png");case 27:return new lt(r,"image/bmp");default:return r}},fr=16,mr=new Uint32Array(256),pr=new Uint32Array(256),gr=new Uint32Array(256),kr=new Uint32Array(256),yr=new Uint32Array(256),br=new Uint32Array(256),wr=new Uint32Array(10);let Tr=!1;class Sr{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(fr/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(fr),this.out=new Uint8Array(fr),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){j(16===e.byteLength),j(16===t.byteLength),Tr||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,n=1;s<256;s++)i[s]=n,t[n]=s,n=n^n<<1^(128&n?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let a=r^r<<1^r<<2^r<<3^r<<4;a=a>>>8^255&a^99,e[s]=a}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);mr[s]=t<<24|t<<16|t<<8|t,br[s]=i<<24|i<<16|i<<8|i;const a=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);pr[s]=a,gr[s]=a>>>8|a<<24,kr[s]=a>>>16|a<<16,yr[s]=a>>>24|a<<8}let a=1;for(let s=0;s<10;s++)wr[s]=a<<24,a=a<<1^(128&a?283:0);Tr=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let a=4;a<44;a+=4){const e=this.roundkey[a-1];this.roundkey[a]=this.roundkey[a-4]^4278190080&mr[e>>>16&255]^16711680&mr[e>>>8&255]^65280&mr[e>>>0&255]^255&mr[e>>>24&255]^wr[a/4-1],this.roundkey[a+1]=this.roundkey[a-3]^this.roundkey[a],this.roundkey[a+2]=this.roundkey[a-2]^this.roundkey[a+1],this.roundkey[a+3]=this.roundkey[a-1]^this.roundkey[a+2]}for(let a=0,s=40;a<s;a+=4,s-=4)for(let e=0;e<4;e++){const t=this.roundkey[a+e];this.roundkey[a+e]=this.roundkey[s+e],this.roundkey[s+e]=t}for(let a=4;a<40;a+=4)for(let e=0;e<4;e++){const t=this.roundkey[a+e];this.roundkey[a+e]=pr[255&mr[t>>>24&255]]^gr[255&mr[t>>>16&255]]^kr[255&mr[t>>>8&255]]^yr[255&mr[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const a=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),n=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let c,l,u,h;for(let g=1;g<10;g++){const a=4*g;c=pr[e>>>24]^gr[r>>>16&255]^kr[i>>>8&255]^yr[255&t]^this.roundkey[a],l=pr[t>>>24]^gr[e>>>16&255]^kr[r>>>8&255]^yr[255&i]^this.roundkey[a+1],u=pr[i>>>24]^gr[t>>>16&255]^kr[e>>>8&255]^yr[255&r]^this.roundkey[a+2],h=pr[r>>>24]^gr[i>>>16&255]^kr[t>>>8&255]^yr[255&e]^this.roundkey[a+3],e=c,t=l,i=u,r=h}const d=4278190080&br[e>>>24&255]^16711680&br[r>>>16&255]^65280&br[i>>>8&255]^255&br[t>>>0&255]^this.roundkey[40],f=4278190080&br[t>>>24&255]^16711680&br[e>>>16&255]^65280&br[r>>>8&255]^255&br[i>>>0&255]^this.roundkey[41],m=4278190080&br[i>>>24&255]^16711680&br[t>>>16&255]^65280&br[e>>>8&255]^255&br[r>>>0&255]^this.roundkey[42],p=4278190080&br[r>>>24&255]^16711680&br[i>>>16&255]^65280&br[t>>>8&255]^255&br[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,d^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=a,this.iv[1]=s,this.iv[2]=n,this.iv[3]=o}}class vr extends ir{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.tracks.map(e=>e.trackBacking)}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>"video"===e.info?.type),hasAudio:this.tracks.some(e=>"audio"===e.info?.type),codecStrings:t.filter(Boolean)})}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(Xe(r)&&(r=await r),!r)break;const a=e,s=or(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=bc(r,4);this.isQuickTime="qt  "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(Xe(e)&&(e=await e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>a+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');await this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=a+s.totalSize}if(!i&&this.input._initInput&&await this.copyMetadataFromInitInput(this.input._initInput),t){j(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);Xe(e)&&(e=await e),j(e);const t=uc(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(Xe(e)&&(e=await e),e){const t=or(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);Xe(i)&&(i=await i),i&&this.readContiguousBoxes(i)}}}}})())}async copyMetadataFromInitInput(e){const t=await e._getDemuxer();if(t.constructor!==vr)throw new Error("Init input must match the input's format.");await t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const i of t.tracks){const e={id:i.id,demuxer:this,trackBacking:null,disposition:i.disposition,timescale:i.timescale,durationInMediaTimescale:i.durationInMediaTimescale,durationInMovieTimescale:i.durationInMovieTimescale,rotation:i.rotation,internalCodecId:i.internalCodecId,name:i.name,languageCode:i.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:i.editListPreviousSegmentDurations,editListOffset:i.editListOffset,encryptionInfo:i.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:i.info};if(i.trackBacking)if(j(e.info),"video"===e.info.type&&-1!==e.info.width){const t=e;e.trackBacking=new Ir(t),this.tracks.push(e)}else if("audio"===e.info.type&&-1!==e.info.numberOfChannels){const t=e;e.trackBacking=new xr(t),this.tracks.push(e)}}}getSampleTableForTrack(e){if(e.sampleTable)return e.sampleTable;const t={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=t,null===e.sampleTableByteOffset)return t;j(this.moovSlice);const i=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(i),this.currentTrack=null;if("audio"===e.info?.type&&e.info.codec&&Ri.includes(e.info.codec)&&0===t.sampleCompositionTimeOffsets.length){j("audio"===e.info?.type);const i=Vi(e.info.codec),r=[],a=[];for(let s=0;s<t.sampleToChunk.length;s++){const n=t.sampleToChunk[s],o=t.sampleToChunk[s+1],c=(o?o.startChunkIndex:t.chunkOffsets.length)-n.startChunkIndex;for(let s=0;s<c;s++){const o=n.startSampleIndex+s*n.samplesPerChunk,c=o+n.samplesPerChunk,l=pe(t.sampleTimingEntries,o,e=>e.startIndex),u=t.sampleTimingEntries[l],h=pe(t.sampleTimingEntries,c,e=>e.startIndex),d=t.sampleTimingEntries[h],f=u.startDecodeTimestamp+(o-u.startIndex)*u.delta,m=d.startDecodeTimestamp+(c-d.startIndex)*d.delta-f,p=X(r);p&&p.delta===m?p.count++:r.push({startIndex:n.startChunkIndex+s,startDecodeTimestamp:f,count:1,delta:m});const g=n.samplesPerChunk*i.sampleSize*e.info.numberOfChannels;a.push(g)}n.startSampleIndex=n.startChunkIndex,n.samplesPerChunk=1}t.sampleTimingEntries=r,t.sampleSizes=a}if(t.sampleCompositionTimeOffsets.length>0){t.presentationTimestamps=[];for(const e of t.sampleTimingEntries)for(let i=0;i<e.count;i++)t.presentationTimestamps.push({presentationTimestamp:e.startDecodeTimestamp+i*e.delta,sampleIndex:e.startIndex+i});for(const e of t.sampleCompositionTimeOffsets)for(let i=0;i<e.count;i++){const r=e.startIndex+i,a=t.presentationTimestamps[r];a&&(a.presentationTimestamp+=e.offset)}t.presentationTimestamps.sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp),t.presentationTimestampIndexMap=Array(t.presentationTimestamps.length).fill(-1);for(let e=0;e<t.presentationTimestamps.length;e++)t.presentationTimestampIndexMap[t.presentationTimestamps[e].sampleIndex]=e}return t}async readFragment(e){if(this.lastReadFragment?.moofOffset===e)return this.lastReadFragment;let t=this.reader.requestSliceRange(e,8,16);Xe(t)&&(t=await t),j(t);const i=or(t);j("moof"===i?.name);let r=this.reader.requestSlice(e,i.totalSize);Xe(r)&&(r=await r),j(r),this.traverseBox(r);const a=this.lastReadFragment;j(a&&a.moofOffset===e);for(const[,s]of a.trackData){const e=s.track,{fragmentPositionCache:t}=e;if(!s.startTimestampIsFinal){const i=e.fragmentLookupTable.find(e=>e.moofOffset===a.moofOffset);if(i)Rr(s,i.timestamp);else{const e=pe(t,a.moofOffset-1,e=>e.moofOffset);if(-1!==e){const i=t[e];Rr(s,i.endTimestamp)}}s.startTimestampIsFinal=!0}const i=pe(t,s.startTimestamp,e=>e.startTimestamp);if(-1!==i&&t[i].moofOffset===a.moofOffset||t.splice(i+1,0,{moofOffset:a.moofOffset,startTimestamp:s.startTimestamp,endTimestamp:s.endTimestamp}),s.encryptionAuxInfo&&e.encryptionInfo){const t=await Dr(this.reader,e.encryptionInfo,s.encryptionAuxInfo);for(let e=0;e<Math.min(s.samples.length,t.length);e++){const i=t[e];s.samples[e].encryption=i}}}return a}readContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){if(!this.traverseBox(e))break}}*iterateContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){const t=e.filePos,i=or(e);if(!i)break;yield{boxInfo:i,slice:e},e.filePos=t+i.totalSize}}traverseBox(e){var t,i,r,a,s,n,o,c,l,u,h,d,f,m,p,g,k,y,b,w,T,S,v,P,I,x,C,B,E,_,R,F,A;const M=e.filePos,D=or(e);if(!D)return!1;const N=e.filePos,O=M+D.totalSize;switch(D.name){case"mdia":case"minf":case"dinf":case"mfra":case"edts":case"sinf":case"schi":case"wave":this.readContiguousBoxes(e.slice(N,D.contentSize));break;case"mvhd":{const t=ac(e);e.skip(3),1===t?(e.skip(16),this.movieTimescale=uc(e),this.movieDurationInTimescale=mc(e)):(e.skip(8),this.movieTimescale=uc(e),this.movieDurationInTimescale=uc(e))}break;case"trak":{const t={id:-1,demuxer:this,trackBacking:null,disposition:{...ht,primary:!1},info:null,timescale:-1,durationInMovieTimescale:-1,durationInMediaTimescale:-1,rotation:0,internalCodecId:null,name:null,languageCode:xe,sampleTableByteOffset:-1,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:0,editListOffset:0,encryptionInfo:null,encryptionAuxInfo:null,frmaCodecString:null};if(this.currentTrack=t,this.readContiguousBoxes(e.slice(N,D.contentSize)),-1!==t.id&&-1!==t.timescale&&null!==t.info)if("video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new Ir(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new xr(e),this.tracks.push(t)}this.currentTrack=null}break;case"tkhd":{const t=this.currentTrack;if(!t)break;const i=ac(e),r=!!(1&oc(e));if(t.disposition.default=r,0===i)e.skip(8),t.id=uc(e),e.skip(4),t.durationInMovieTimescale=uc(e);else{if(1!==i)throw new Error(`Incorrect track header version ${i}.`);e.skip(16),t.id=uc(e),e.skip(4),t.durationInMovieTimescale=mc(e)}e.skip(16);const a=[cr(e),cr(e),lr(e),cr(e),cr(e),lr(e),cr(e),cr(e),lr(e)],s=K(Be(Fr(a),90));j(0===s||90===s||180===s||270===s),t.rotation=s}break;case"elst":{const t=this.currentTrack;if(!t)break;const i=ac(e);e.skip(3);let r=!1,a=0;const s=uc(e);for(let n=0;n<s;n++){const s=1===i?mc(e):uc(e),n=1===i?pc(e):dc(e),o=cr(e);if(r){ct._warn("Unsupported edit list: multiple edits are not currently supported. Only using first edit.");break}if(-1!==n){if(1!==o){ct._warn("Unsupported edit list entry: media rate must be 1.");break}t.editListPreviousSegmentDurations=a,t.editListOffset=n,r=!0}else a+=s}}break;case"mdhd":{const t=this.currentTrack;if(!t)break;const i=ac(e);e.skip(3),0===i?(e.skip(8),t.timescale=uc(e),t.durationInMediaTimescale=uc(e)):1===i&&(e.skip(16),t.timescale=uc(e),t.durationInMediaTimescale=mc(e));let r=nc(e);if(r>0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;Ae(t.languageCode)||(t.languageCode=xe)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=bc(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:{...ce},avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=M,this.readContiguousBoxes(e.slice(N,D.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=ac(e);e.skip(3);const r=uc(e);for(let a=0;a<r;a++){const r=e.filePos,a=or(e);if(!a)break;t.internalCodecId=a.name;const s=a.name.toLowerCase();if("video"===t.info.type){e.skip(24),t.info.width=nc(e),t.info.height=nc(e),t.info.squarePixelWidth=t.info.width,t.info.squarePixelHeight=t.info.height,e.skip(50),t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+a.totalSize-e.filePos));const i="encv"===s?t.frmaCodecString:s;t.frmaCodecString=null,"avc1"===i||"avc3"===i?(t.info.codec="avc",t.info.avcType="avc1"===i?1:3):"hvc1"===i||"hev1"===i?t.info.codec="hevc":"vp08"===i?t.info.codec="vp8":"vp09"===i?t.info.codec="vp9":"av01"===i?t.info.codec="av1":Oi.includes(s)?(t.info.codec="prores",t.info.proresFormat=s):null===i?ct._warn("Unknown encrypted video codec due to missing frma box."):ct._warn(`Unsupported video codec (sample entry type '${a.name}').`)}else{e.skip(8);const n=nc(e);e.skip(6);let o=nc(e),c=nc(e);e.skip(4);let l=uc(e)/65536,u=null;0===i&&n>0&&(1===n?(e.skip(4),c=8*uc(e),e.skip(8)):2===n&&(e.skip(4),l=yc(e),o=uc(e),e.skip(4),c=uc(e),u=uc(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=l,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+a.totalSize-e.filePos));const h="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===h);else if("opus"===h)t.info.codec="opus",t.info.sampleRate=Wi;else if("flac"===h)t.info.codec="flac";else if("ulaw"===h)t.info.codec="ulaw";else if("alaw"===h)t.info.codec="alaw";else if("ac-3"===h)t.info.codec="ac3";else if("ec-3"===h)t.info.codec="eac3";else if(Li.includes(h))t.info.codec="dts",t.info.dtsFormat=h;else if("twos"===h)8===c?t.info.codec="pcm-s8":16===c?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(ct._warn(`Unsupported sample size ${c} for codec 'twos'.`),t.info.codec=null);else if("sowt"===h)8===c?t.info.codec="pcm-s8":16===c?t.info.codec="pcm-s16":(ct._warn(`Unsupported sample size ${c} for codec 'sowt'.`),t.info.codec=null);else if("raw "===h)t.info.codec="pcm-u8";else if("in24"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===h){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(ct._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(ct._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===h){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(ct._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(ct._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===h&&null!==u){const e=c+7>>3,i=Boolean(1&u),r=Boolean(2&u),a=4&u?-1:0;c>0&&c<=64&&(i?32===c&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):a&1<<e-1?1===e?t.info.codec="pcm-s8":2===e?t.info.codec=r?"pcm-s16be":"pcm-s16":3===e?t.info.codec=r?"pcm-s24be":"pcm-s24":4===e&&(t.info.codec=r?"pcm-s32be":"pcm-s32"):1===e&&(t.info.codec="pcm-u8")),null===t.info.codec&&ct._warn("Unsupported PCM format.")}else null===h?ct._warn("Unknown encrypted audio codec due to missing frma box."):ct._warn(`Unsupported audio codec (sample entry type '${a.name}').`)}e.filePos=r+a.totalSize}}break;case"frma":{const t=this.currentTrack;if(!t)break;const i=bc(e,4).toLowerCase();t.frmaCodecString=i}break;case"schm":{const t=this.currentTrack;if(!t)break;e.skip(4);const i=bc(e,4);"cenc"===i||"cens"===i||"cbcs"===i?t.encryptionInfo={scheme:i,defaultKid:null,defaultIsProtected:null,defaultPerSampleIvSize:null,defaultConstantIv:null,defaultCryptByteBlock:null,defaultSkipByteBlock:null}:ct._warn(`Unsupported encryption scheme '${i}'.`)}break;case"tenc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=ac(e);e.skip(3),e.skip(1);const r=ac(e);if(i>0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==ac(e),t.encryptionInfo.defaultPerSampleIvSize=ac(e),t.encryptionInfo.defaultKid=de(rc(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=ac(e),r=new Uint8Array(16);r.set(rc(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(j(t.info),0===D.contentSize)break;t.info.codecDescription=rc(e,D.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(j(t.info),0===D.contentSize)break;t.info.codecDescription=rc(e,D.contentSize)}break;case"vpcC":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type),e.skip(4);const i=ac(e),r=ac(e),a=ac(e),s=a>>4,n=a>>1&7,o=1&a,c=ac(e),l=ac(e),u=ac(e);t.info.vp9CodecInfo={profile:i,level:r,bitDepth:s,chromaSubsampling:n,videoFullRangeFlag:o,colourPrimaries:c,transferCharacteristics:l,matrixCoefficients:u}}break;case"av1C":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type),e.skip(1);const i=ac(e),r=i>>5,a=31&i,s=ac(e),n=s>>7,o=s>>6&1,c=s>>4&1,l=s>>3&1,u=s>>2&1,h=3&s,d=2===r&&o?s>>5&1?12:10:o?10:8;e.skip(1);const f=rc(e,D.contentSize-4),m=ii(f);t.info.av1CodecInfo={profile:r,level:a,tier:n,bitDepth:d,monochrome:c,chromaSubsamplingX:l,chromaSubsamplingY:u,chromaSamplePosition:h,videoFullRangeFlag:m?.videoFullRangeFlag??0,colourPrimaries:m?.colourPrimaries??2,transferCharacteristics:m?.transferCharacteristics??2,matrixCoefficients:m?.matrixCoefficients??2}}break;case"colr":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type);const i=bc(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=nc(e),a=nc(e),s=nc(e);let n;"nclx"===i&&(n=Boolean(128&ac(e))),t.info.colorSpace={primaries:ie[r],transfer:ae[a],matrix:ne[s],fullRange:n}}break;case"pasp":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type);const i=uc(e),r=uc(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==t.info?.type)break;e.skip(4);j(3===ac(e)),ur(e),e.skip(2);const i=ac(e),r=0!==(64&i),a=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=ac(e);e.skip(t)}a&&e.skip(2);j(4===ac(e));const s=ur(e),n=e.filePos,o=ac(e);if(64===o||103===o?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===o,objectType:null}):105===o||107===o?t.info.codec="mp3":221===o?t.info.codec="vorbis":169===o?t.info.codec="dts":ct._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-n){j(5===ac(e));const i=ur(e);if(t.info.codecDescription=rc(e,i),"aac"===t.info.codec){const e=pt(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),t.info.pcmLittleEndian=!!(255&nc(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),e.skip(4);const i=ac(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=ac(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),e.skip(1);const i=ac(e),r=nc(e),a=uc(e),s=cc(e),n=ac(e);let o;o=0!==n?rc(e,2+i):new Uint8Array(0);const c=new Uint8Array(19+o.byteLength),l=new DataView(c.buffer);l.setUint32(0,1332770163,!1),l.setUint32(4,1214603620,!1),l.setUint8(8,1),l.setUint8(9,i),l.setUint16(10,r,!0),l.setUint32(12,a,!0),l.setInt16(16,s,!0),l.setUint8(18,n),c.set(o,19),t.info.codecDescription=c,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),e.skip(4);const i=127,r=128,a=e.filePos;for(;e.filePos<O;){const a=ac(e),s=oc(e);if((a&i)===oi.STREAMINFO){e.skip(10);const i=uc(e),r=i>>>12,a=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=a,e.skip(20)}else e.skip(s);if(a&r)break}const s=e.filePos;e.filePos=a;const n=rc(e,s-a),o=new Uint8Array(4+n.byteLength);new DataView(o.buffer).setUint32(0,1716281667,!1),o.set(n,4),t.info.codecDescription=o}break;case"dac3":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type);const i=rc(e,3),r=new dt(i),a=r.readBits(2);r.skipBits(8);const s=r.readBits(3),n=r.readBits(1);a<3&&(t.info.sampleRate=yt[a]),t.info.numberOfChannels=ui[s]+n}break;case"dec3":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type);const i=(e=>{if(e.length<2)return null;const t=new dt(e),i=t.readBits(13),r=t.readBits(3),a=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),n=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let c=0;o>0?c=t.readBits(9):t.skipBits(1),a.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:n,numDepSub:o,chanLoc:c})}return 0===a.length?null:{dataRate:i,substreams:a}})(rc(e,D.contentSize));if(!i){ct._warn("Invalid dec3 box contents, ignoring.");break}const r=pi(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=gi(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type);const i=(e=>{if(e.length<20)return null;const t=J(e),i=t.getUint32(0);if(0===i)return null;const r=new dt(e);r.seekToByte(13);const a=r.readBits(2);r.skipBits(5);const s=r.readBits(1),n=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let c=null;return 0!==o?c=Ei(o):n<wi.length&&(c=wi[n]+s),{sampleRate:i,maxBitrate:t.getUint32(4),avgBitrate:t.getUint32(8),pcmSampleDepth:e[12],sampleCount:Pi[a],channelLayout:o,numberOfChannels:c}})(rc(e,Math.min(D.contentSize,20)));if(!i){ct._warn("Invalid ddts box contents, ignoring.");break}t.info.sampleRate=i.sampleRate,null!==i.numberOfChannels&&(t.info.numberOfChannels=i.numberOfChannels)}break;case"stts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);let r=0,a=0;for(let s=0;s<i;s++){const i=uc(e),s=uc(e);t.sampleTable.sampleTimingEntries.push({startIndex:r,startDecodeTimestamp:a,count:i,delta:s}),r+=i,a+=i*s}}break;case"ctts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);let r=0;for(let a=0;a<i;a++){const i=uc(e),a=dc(e);t.sampleTable.sampleCompositionTimeOffsets.push({startIndex:r,count:i,offset:a}),r+=i}}break;case"stsz":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e),r=uc(e);if(0===i)for(let a=0;a<r;a++){const i=uc(e);t.sampleTable.sampleSizes.push(i)}else t.sampleTable.sampleSizes.push(i)}break;case"stz2":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),e.skip(3);const i=ac(e),r=uc(e),a=rc(e,Math.ceil(r*i/8)),s=new dt(a);for(let e=0;e<r;e++){const e=s.readBits(i);t.sampleTable.sampleSizes.push(e)}}break;case"stss":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),t.sampleTable.keySampleIndices=[];const i=uc(e);for(let r=0;r<i;r++){const i=uc(e)-1;t.sampleTable.keySampleIndices.push(i)}0!==t.sampleTable.keySampleIndices[0]&&t.sampleTable.keySampleIndices.unshift(0)}break;case"stsc":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);for(let a=0;a<i;a++){const i=uc(e)-1,r=uc(e),a=uc(e);t.sampleTable.sampleToChunk.push({startSampleIndex:-1,startChunkIndex:i,samplesPerChunk:r,sampleDescriptionIndex:a})}let r=0;for(let e=0;e<t.sampleTable.sampleToChunk.length;e++)if(t.sampleTable.sampleToChunk[e].startSampleIndex=r,e<t.sampleTable.sampleToChunk.length-1){r+=(t.sampleTable.sampleToChunk[e+1].startChunkIndex-t.sampleTable.sampleToChunk[e].startChunkIndex)*t.sampleTable.sampleToChunk[e].samplesPerChunk}}break;case"stco":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);for(let r=0;r<i;r++){const i=uc(e);t.sampleTable.chunkOffsets.push(i)}}break;case"co64":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);for(let r=0;r<i;r++){const i=mc(e);t.sampleTable.chunkOffsets.push(i)}}break;case"mvex":this.isFragmented=!0,this.readContiguousBoxes(e.slice(N,D.contentSize));break;case"mehd":{const t=ac(e);e.skip(3);const i=1===t?mc(e):uc(e);this.movieDurationInTimescale=i}break;case"trex":{e.skip(4);const t=uc(e),i=uc(e),r=uc(e),a=uc(e),s=uc(e);this.fragmentTrackDefaults.push({trackId:t,defaultSampleDescriptionIndex:i,defaultSampleDuration:r,defaultSampleSize:a,defaultSampleFlags:s})}break;case"tfra":{const t=ac(e);e.skip(3);const i=uc(e),r=this.tracks.find(e=>e.id===i);if(!r)break;const a=uc(e),s=(12&a)>>2,n=3&a,o=[ac,nc,oc,uc],c=o[(48&a)>>4],l=o[s],u=o[n],h=uc(e);for(let d=0;d<h;d++){const i=1===t?mc(e):uc(e),a=1===t?mc(e):uc(e);c(e),l(e),u(e),r.fragmentLookupTable.push({timestamp:i,moofOffset:a})}r.fragmentLookupTable.sort((e,t)=>e.timestamp-t.timestamp);for(let e=0;e<r.fragmentLookupTable.length-1;e++){const t=r.fragmentLookupTable[e],i=r.fragmentLookupTable[e+1];t.timestamp===i.timestamp&&(r.fragmentLookupTable.splice(e+1,1),e--)}}break;case"moof":this.currentFragment={moofOffset:M,moofSize:D.totalSize,implicitBaseDataOffset:M,trackData:new Map,psshBoxes:[]},this.readContiguousBoxes(e.slice(N,D.contentSize)),this.lastReadFragment=this.currentFragment,this.currentFragment=null;break;case"traf":if(j(this.currentFragment),this.readContiguousBoxes(e.slice(N,D.contentSize)),this.currentTrack){const e=this.currentFragment.trackData.get(this.currentTrack.id);e:if(e){if(0===e.samples.length){this.currentFragment.trackData.delete(this.currentTrack.id);break e}e.presentationTimestamps=e.samples.map((e,t)=>({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let a=0;a<e.presentationTimestamps.length;a++){const t=e.presentationTimestamps[a],i=e.samples[t.sampleIndex];if(null===e.firstKeyFrameTimestamp&&i.isKeyFrame&&(e.firstKeyFrameTimestamp=i.presentationTimestamp),a<e.presentationTimestamps.length-1){const r=e.presentationTimestamps[a+1].presentationTimestamp-t.presentationTimestamp;i.duration=r}}const t=e.samples[e.presentationTimestamps[0].sampleIndex],i=e.samples[X(e.presentationTimestamps).sampleIndex];e.startTimestamp=t.presentationTimestamp,e.endTimestamp=i.presentationTimestamp+i.duration;const{currentFragmentState:r}=this.currentTrack;j(r),null!==r.startTimestamp&&(Rr(e,r.startTimestamp),e.startTimestampIsFinal=!0),r.encryptionAuxInfo&&!e.samples[0].encryption&&(e.encryptionAuxInfo=r.encryptionAuxInfo)}this.currentTrack.currentFragmentState=null,this.currentTrack=null}break;case"pssh":{if(this.input._formatOptions.isobmff?._suppressPsshParsing)break;const t=sr(rc(e,D.contentSize));this.currentFragment?this.currentFragment.psshBoxes.push(t):this.currentTrack||this.psshBoxes.push(t)}break;case"tfhd":{j(this.currentFragment),e.skip(1);const t=oc(e),i=Boolean(1&t),r=Boolean(2&t),a=Boolean(8&t),s=Boolean(16&t),n=Boolean(32&t),o=Boolean(65536&t),c=Boolean(131072&t),l=uc(e),u=this.tracks.find(e=>e.id===l);if(!u)break;const h=this.fragmentTrackDefaults.find(e=>e.trackId===l);this.currentTrack=u,u.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:h?.defaultSampleDescriptionIndex??null,defaultSampleDuration:h?.defaultSampleDuration??null,defaultSampleSize:h?.defaultSampleSize??null,defaultSampleFlags:h?.defaultSampleFlags??null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=mc(e):c&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=uc(e)),a&&(u.currentFragmentState.defaultSampleDuration=uc(e)),s&&(u.currentFragmentState.defaultSampleSize=uc(e)),n&&(u.currentFragmentState.defaultSampleFlags=uc(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;j(t.currentFragmentState);const i=ac(e);e.skip(3);const r=0===i?uc(e):mc(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;j(this.currentFragment),j(t.currentFragmentState);const i=ac(e),r=oc(e),a=Boolean(1&r),s=Boolean(4&r),n=Boolean(256&r),o=Boolean(512&r),c=Boolean(1024&r),l=Boolean(2048&r),u=uc(e);let h=null;a&&(h=dc(e));let d,f=null;s&&(f=uc(e)),this.currentFragment.trackData.has(t.id)?(d=this.currentFragment.trackData.get(t.id),null!==h&&(d.currentOffset=t.currentFragmentState.baseDataOffset+h)):(d={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(h??0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,d));for(let m=0;m<u;m++){let r,a,s;n?r=uc(e):(j(null!==t.currentFragmentState.defaultSampleDuration),r=t.currentFragmentState.defaultSampleDuration),o?a=uc(e):(j(null!==t.currentFragmentState.defaultSampleSize),a=t.currentFragmentState.defaultSampleSize),c?s=uc(e):(j(null!==t.currentFragmentState.defaultSampleFlags),s=t.currentFragmentState.defaultSampleFlags),0===m&&null!==f&&(s=f);let u=0;l&&(u=0===i?uc(e):dc(e));const h=!(65536&s);d.samples.push({presentationTimestamp:d.currentTimestamp+u,duration:r,byteOffset:d.currentOffset,byteSize:a,isKeyFrame:h,encryption:null}),d.currentOffset+=a,d.currentTimestamp+=r}this.currentFragment.implicitBaseDataOffset=d.currentOffset}break;case"saiz":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;e.skip(1);if(1&oc(e)){const i=bc(e,4),r=uc(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const i=ac(e),r=uc(e);let a=null;0===i&&r>0&&(a=rc(e,r));const s=Mr(t);s.defaultSampleInfoSize=i,s.sampleSizes=a,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=ac(e);if(1&oc(e)){const i=bc(e,4),r=uc(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=uc(e);if(0===r)break;r>1&&ct._warn("Multiple saio entries are not supported; using the first offset only.");let a=0===i?uc(e):Number(mc(e));this.currentFragment&&(a+=this.currentFragment.moofOffset);Mr(t).offset=a}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;j(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=oc(e),a=Boolean(2&r),s=uc(e),n=t.encryptionInfo.defaultPerSampleIvSize;j(null!==n);for(let o=0;o<Math.min(s,i.samples.length);o++){const r=new Uint8Array(16);n>0?r.set(rc(e,n),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(a){const t=nc(e);s=[];for(let i=0;i<t;i++){const t=nc(e),i=uc(e);s.push({clearLen:t,protectedLen:i})}}i.samples[o].encryption={iv:r,subsamples:s}}}break;case"udta":{const p=this.iterateContiguousBoxes(e.slice(N,D.contentSize));for(const{boxInfo:e,slice:g}of p){if("meta"!==e.name&&!this.currentTrack){const n=g.filePos;(t=this.metadataTags).raw??(t.raw={}),"\xa9"===e.name[0]?(i=this.metadataTags.raw)[r=e.name]??(i[r]=hr(g)):(a=this.metadataTags.raw)[s=e.name]??(a[s]=rc(g,e.contentSize)),g.filePos=n}switch(e.name){case"meta":g.skip(-e.headerSize),this.traverseBox(g);break;case"\xa9nam":case"name":this.currentTrack?this.currentTrack.name=Z.decode(rc(g,e.contentSize)):(n=this.metadataTags).title??(n.title=hr(g));break;case"\xa9des":this.currentTrack||((o=this.metadataTags).description??(o.description=hr(g)));break;case"\xa9ART":this.currentTrack||((c=this.metadataTags).artist??(c.artist=hr(g)));break;case"\xa9alb":this.currentTrack||((l=this.metadataTags).album??(l.album=hr(g)));break;case"albr":this.currentTrack||((u=this.metadataTags).albumArtist??(u.albumArtist=hr(g)));break;case"\xa9gen":this.currentTrack||((h=this.metadataTags).genre??(h.genre=hr(g)));break;case"\xa9day":if(!this.currentTrack){const e=new Date(hr(g));Number.isNaN(e.getTime())||((d=this.metadataTags).date??(d.date=e))}break;case"\xa9cmt":this.currentTrack||((f=this.metadataTags).comment??(f.comment=hr(g)));break;case"\xa9lyr":this.currentTrack||((m=this.metadataTags).lyrics??(m.lyrics=hr(g)))}}}break;case"meta":{if(this.currentTrack)break;const t=0!==uc(e);this.currentMetadataKeys=new Map,t?this.readContiguousBoxes(e.slice(N,D.contentSize)):this.readContiguousBoxes(e.slice(N+4,D.contentSize-4)),this.currentMetadataKeys=null}break;case"keys":{if(!this.currentMetadataKeys)break;e.skip(4);const t=uc(e);for(let i=0;i<t;i++){const t=uc(e);e.skip(4);const r=Z.decode(rc(e,t-8));this.currentMetadataKeys.set(i+1,r)}}break;case"ilst":{if(!this.currentMetadataKeys)break;const t=this.iterateContiguousBoxes(e.slice(N,D.contentSize));for(const{boxInfo:e,slice:i}of t){let t=e.name;const r=(t.charCodeAt(0)<<24)+(t.charCodeAt(1)<<16)+(t.charCodeAt(2)<<8)+t.charCodeAt(3);this.currentMetadataKeys.has(r)&&(t=this.currentMetadataKeys.get(r));const a=dr(i);switch((p=this.metadataTags).raw??(p.raw={}),(g=this.metadataTags.raw)[t]??(g[t]=a),t){case"\xa9nam":case"titl":case"com.apple.quicktime.title":case"title":"string"===typeof a&&((k=this.metadataTags).title??(k.title=a));break;case"\xa9des":case"desc":case"dscp":case"com.apple.quicktime.description":case"description":"string"===typeof a&&((y=this.metadataTags).description??(y.description=a));break;case"\xa9ART":case"com.apple.quicktime.artist":case"artist":"string"===typeof a&&((b=this.metadataTags).artist??(b.artist=a));break;case"\xa9alb":case"albm":case"com.apple.quicktime.album":case"album":"string"===typeof a&&((w=this.metadataTags).album??(w.album=a));break;case"aART":case"album_artist":"string"===typeof a&&((T=this.metadataTags).albumArtist??(T.albumArtist=a));break;case"\xa9cmt":case"com.apple.quicktime.comment":case"comment":"string"===typeof a&&((S=this.metadataTags).comment??(S.comment=a));break;case"\xa9gen":case"gnre":case"com.apple.quicktime.genre":case"genre":"string"===typeof a&&((v=this.metadataTags).genre??(v.genre=a));break;case"\xa9lyr":case"lyrics":"string"===typeof a&&((P=this.metadataTags).lyrics??(P.lyrics=a));break;case"\xa9day":case"rldt":case"com.apple.quicktime.creationdate":case"date":if("string"===typeof a){const e=new Date(a);Number.isNaN(e.getTime())||((I=this.metadataTags).date??(I.date=e))}break;case"covr":case"com.apple.quicktime.artwork":a instanceof lt?((x=this.metadataTags).images??(x.images=[]),this.metadataTags.images.push({data:a.data,kind:"coverFront",mimeType:a.mimeType})):a instanceof Uint8Array&&((C=this.metadataTags).images??(C.images=[]),this.metadataTags.images.push({data:a,kind:"coverFront",mimeType:"image/*"}));break;case"track":if("string"===typeof a){const e=a.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&((B=this.metadataTags).trackNumber??(B.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((E=this.metadataTags).tracksTotal??(E.tracksTotal=i))}break;case"trkn":if(a instanceof Uint8Array&&a.length>=6){const e=J(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((_=this.metadataTags).trackNumber??(_.trackNumber=t)),i>0&&((R=this.metadataTags).tracksTotal??(R.tracksTotal=i))}break;case"disc":case"disk":if(a instanceof Uint8Array&&a.length>=6){const e=J(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((F=this.metadataTags).discNumber??(F.discNumber=t)),i>0&&((A=this.metadataTags).discsTotal??(A.discsTotal=i))}}}}}return e.filePos=O,!0}}class Pr{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.internalTrack;if(e.durationInMediaTimescale<=0)return null;j(e.trackBacking);const t=await e.trackBacking.getFirstPacket({metadataOnly:!0});return(t?.timestamp??0)+e.durationInMediaTimescale/e.timescale}async getLiveRefreshInterval(){return null}async getFirstPacket(e){const t=await this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)}mapTimestampIntoTimescale(e){return Ce(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}async getPacket(e,t){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a=Cr(r,i),s=await this.fetchPacketForSampleIndex(a,t);return Ar(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=pe(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s}async getNextPacket(e,t){const i=this.packetToSampleIndex.get(e);if(void 0!==i)return this.fetchPacketForSampleIndex(i+1,t);const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1<t.samples.length)return{sampleIndex:r.sampleIndex+1,correctSampleFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{sampleIndex:0,correctSampleFound:!0}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)}async getKeyPacket(e,t){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a=Br(r,i),s=await this.fetchPacketForSampleIndex(a,t);return Ar(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=we(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s}async getNextKeyPacket(e,t){const i=this.packetToSampleIndex.get(e);if(void 0!==i){const e=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=_r(e,i);return this.fetchPacketForSampleIndex(r,t)}const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return j(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)}async fetchPacketForSampleIndex(e,t){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=Er(i,e);if(!r)return null;let a;if(t.metadataOnly)a=rr;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(Xe(t)&&(t=await t),!t)return null;if(a=rc(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=await Dr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);e<i.length&&(t=i[e])}t??(t=Nr(this.internalTrack.encryptionInfo)),t&&(a=await Or(this.internalTrack,t,a,null))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,n=r.duration/this.internalTrack.timescale,o=new ar(a,r.isKeyFrame?"key":"delta",s,n,e,r.sampleSize);return this.packetToSampleIndex.set(o,e),o}async fetchPacketInFragment(e,t,i){if(-1===t)return null;const r=e.trackData.get(this.internalTrack.id).samples[t];let a;if(j(r),i.metadataOnly)a=rr;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.byteOffset,r.byteSize);if(Xe(t)&&(t=await t),!t)return null;if(a=rc(t,r.byteSize),this.internalTrack.encryptionInfo){const t=r.encryption??Nr(this.internalTrack.encryptionInfo);t&&(a=await Or(this.internalTrack,t,a,e))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,n=r.duration/this.internalTrack.timescale,o=new ar(a,r.isKeyFrame?"key":"delta",s,n,e.moofOffset+t,r.byteSize);return this.packetToFragmentLocation.set(o,{fragment:e,sampleIndex:t}),o}async performFragmentedLookup(e,t,i,r,a){const s=this.internalTrack.demuxer;let n=null,o=null,c=-1;if(e){const{sampleIndex:i,correctSampleFound:r}=t(e);if(r)return this.fetchPacketInFragment(e,i,a);-1!==i&&(o=e,c=i)}const l=pe(this.internalTrack.fragmentLookupTable,i,e=>e.timestamp),u=-1!==l?this.internalTrack.fragmentLookupTable[l]:null,h=pe(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),d=-1!==h?this.internalTrack.fragmentPositionCache[h]:null,f=Math.max(u?.moofOffset??0,d?.moofOffset??0)||null;let m;for(e?null===f||e.moofOffset>=f?(m=e.moofOffset+e.moofSize,n=e):m=f:m=f??0;;){if(n){const e=n.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=s.reader.requestSliceRange(m,8,16);if(Xe(e)&&(e=await e),!e)break;const i=m,l=or(e);if(!l)break;if("moof"===l.name){n=await s.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(n);if(r)return this.fetchPacketInFragment(n,e,a);-1!==e&&(o=n,c=e)}m=i+l.totalSize}if(u&&(!o||o.moofOffset<u.moofOffset)){const e=this.internalTrack.fragmentLookupTable[l-1];j(!e||e.timestamp<u.timestamp);const i=e?.timestamp??-1/0;return this.performFragmentedLookup(null,t,i,r,a)}return o?this.fetchPacketInFragment(o,c,a):null}}class Ir extends Pr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.rotation}async getColorSpace(){const e=await this.getDecoderConfig();return e?{primaries:e.colorSpace?.primaries,transfer:e.colorSpace?.transfer,matrix:e.colorSpace?.matrix,fullRange:e.colorSpace?.fullRange}:this.internalTrack.info.colorSpace}async canBeTransparent(){return"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{var e,t,i,r,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=await this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&ri(e.data)}}else{const e=await this.getFirstPacket({}),t=e&&ii(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const e=await this.getFirstPacket({}),t=e&&ei(e.data);t&&(this.internalTrack.info.vp9CodecInfo={...this.internalTrack.info.vp9CodecInfo??t,videoFullRangeFlag:t.videoFullRangeFlag,colourPrimaries:t.colourPrimaries,transferCharacteristics:t.transferCharacteristics,matrixCoefficients:t.matrixCoefficients})}else{const e=await this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&Wt(e.data)}else{const e=await this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&Ft(e.data)}if(!oe(this.internalTrack.info.colorSpace)){const a=Ui(this.internalTrack.info);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const s={codec:zi(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(s.displayAspectWidth=this.internalTrack.info.squarePixelWidth,s.displayAspectHeight=this.internalTrack.info.squarePixelHeight),s})()):null}}class xr extends Pr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&xi(e.data)}return{codec:qi(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Cr=(e,t)=>{if(e.presentationTimestamps){const i=pe(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=pe(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},Br=(e,t)=>{if(!e.keySampleIndices)return Cr(e,t);if(e.presentationTimestamps){const i=pe(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==me(e.keySampleIndices,i,e=>e))return i}return-1}{const i=Cr(e,t),r=pe(e.keySampleIndices,i,e=>e);return e.keySampleIndices[r]??-1}},Er=(e,t)=>{const i=pe(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let a=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=pe(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),n=e.sampleCompositionTimeOffsets[s];n&&t-n.startIndex<n.count&&(a+=n.offset);const o=e.sampleSizes[Math.min(t,e.sampleSizes.length-1)],c=pe(e.sampleToChunk,t,e=>e.startSampleIndex),l=e.sampleToChunk[c];j(l);const u=l.startChunkIndex+Math.floor((t-l.startSampleIndex)/l.samplesPerChunk),h=e.chunkOffsets[u],d=l.startSampleIndex+(u-l.startChunkIndex)*l.samplesPerChunk;let f=0,m=h;if(1===e.sampleSizes.length)m+=o*(t-d),f+=o*l.samplesPerChunk;else for(let g=d;g<d+l.samplesPerChunk;g++){const i=e.sampleSizes[g];g<t&&(m+=i),f+=i}let p=r.delta;if(e.presentationTimestamps){const i=e.presentationTimestampIndexMap[t];if(j(void 0!==i),i<e.presentationTimestamps.length-1){p=e.presentationTimestamps[i+1].presentationTimestamp-a}}return{presentationTimestamp:a,duration:p,sampleOffset:m,sampleSize:o,chunkOffset:h,chunkSize:f,isKeyFrame:!e.keySampleIndices||-1!==me(e.keySampleIndices,t,e=>e)}},_r=(e,t)=>{if(!e.keySampleIndices)return t+1;const i=pe(e.keySampleIndices,t,e=>e);return e.keySampleIndices[i+1]??-1},Rr=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},Fr=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},Ar=e=>0===e.sampleSizes.length,Mr=e=>{var t;return e.currentFragmentState?(t=e.currentFragmentState).encryptionAuxInfo??(t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}):e.encryptionAuxInfo??(e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null})},Dr=async(e,t,i)=>{if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{j(i.sampleSizes);for(let e=0;e<i.sampleCount;e++)r+=i.sampleSizes[e]}let a=e.requestSlice(i.offset,r);if(Xe(a)&&(a=await a),!a)throw new Error("Failed to read auxiliary encryption info.");const s=t.defaultPerSampleIvSize;j(null!==s);const n=[];for(let o=0;o<i.sampleCount;o++){const e=i.defaultSampleInfoSize>0?i.defaultSampleInfoSize:i.sampleSizes[o],r=new Uint8Array(16);s>0?r.set(rc(a,s),0):r.set(t.defaultConstantIv,0);let c=null;if(e>s){const e=nc(a);c=[];for(let t=0;t<e;t++){const e=nc(a),t=uc(a);c.push({clearLen:e,protectedLen:t})}}n.push({iv:r,subsamples:c})}return i.resolved=n,n},Nr=e=>e.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,Or=async(e,t,i,r)=>{j(e.encryptionInfo);const a=e.encryptionInfo;j(null!==a.defaultKid);const s=a.defaultKid;let n;const o=e.demuxer.decryptionKeyCache.get(s);if(o)n=await o;else{if(!e.demuxer.input._formatOptions.isobmff?.resolveKeyId)throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=(async()=>{let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(s));for(let e=0;e<t.length-1;e++)for(let i=e+1;i<t.length;i++)nr(t[e],t[i])&&(t.splice(i,1),i--)}const i=await e.demuxer.input._formatOptions.isobmff.resolveKeyId({keyId:s,psshBoxes:t});if(!("string"===typeof i&&32===i.length&&he.test(i)||i instanceof Uint8Array&&16===i.byteLength))throw new TypeError("resolveKeyId must return a 32-character hex string or a 16-byte Uint8Array containing the decryption key.");return i instanceof Uint8Array?i:(e=>{j(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;i<e.length;i+=2)t[i/2]=parseInt(e.slice(i,i+2),16);return t})(i)})();e.demuxer.decryptionKeyCache.set(s,t),n=await t}return"cenc"===a.scheme||"cens"===a.scheme?Lr(n,a,t,i):zr(n,a,t,i)},Lr=async(e,t,i,r)=>{const a=new Uint8Array(16);a.set(i.iv,0);const s=await crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),n=async e=>{const t=await crypto.subtle.decrypt({name:"AES-CTR",counter:a,length:64},s,e);return new Uint8Array(t)};if(!i.subsamples)return n(r);j(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=Ur(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let c=0;for(const m of o)for(const e of m.perSubsample)c+=e.length;const l=new Uint8Array(c);let u=0;for(const m of o)for(const e of m.perSubsample)l.set(r.subarray(e.offset,e.offset+e.length),u),u+=e.length;const h=await n(l),d=new Uint8Array(r);let f=0;for(const m of o)for(const e of m.perSubsample)d.set(h.subarray(f,f+e.length),e.offset),f+=e.length;return d},zr=(e,t,i,r)=>{const a=new Sr;a.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,n=t.defaultSkipByteBlock;if(j(null!==s&&null!==n),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i<t;i++){const t=16*i;a.in.set(r.subarray(t,t+16)),a.decrypt(),e.set(a.out,t)}return e}if(0===s&&0===n)throw new Error("cbcs with subsamples requires pattern encryption.");const o=new Uint8Array(r),c=Ur(i.subsamples,s,n),l=new DataView(i.iv.buffer,i.iv.byteOffset,16);for(const u of c){a.iv[0]=l.getUint32(0,!1),a.iv[1]=l.getUint32(4,!1),a.iv[2]=l.getUint32(8,!1),a.iv[3]=l.getUint32(12,!1);for(const e of u.perSubsample){const t=e.length/16;for(let i=0;i<t;i++){const t=e.offset+16*i;a.in.set(r.subarray(t,t+16)),a.decrypt(),o.set(a.out,t)}}}return o},Ur=(e,t,i)=>{const r=[],a=0!==t||0!==i;let s=0;for(const n of e){s+=n.clearLen;const e=[];if(a){let r=n.protectedLen,a=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:a,length:s}),a+=s,r-=s;const n=Math.min(16*i,r);a+=n,r-=n}s+=n.protectedLen}else n.protectedLen>0&&e.push({offset:s,length:n.protectedLen}),s+=n.protectedLen;r.push({perSubsample:e})}return r};var qr,Wr;(Wr=qr||(qr={}))[Wr.EBML=440786851]="EBML",Wr[Wr.EBMLVersion=17030]="EBMLVersion",Wr[Wr.EBMLReadVersion=17143]="EBMLReadVersion",Wr[Wr.EBMLMaxIDLength=17138]="EBMLMaxIDLength",Wr[Wr.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",Wr[Wr.DocType=17026]="DocType",Wr[Wr.DocTypeVersion=17031]="DocTypeVersion",Wr[Wr.DocTypeReadVersion=17029]="DocTypeReadVersion",Wr[Wr.Void=236]="Void",Wr[Wr.Segment=408125543]="Segment",Wr[Wr.SeekHead=290298740]="SeekHead",Wr[Wr.Seek=19899]="Seek",Wr[Wr.SeekID=21419]="SeekID",Wr[Wr.SeekPosition=21420]="SeekPosition",Wr[Wr.Duration=17545]="Duration",Wr[Wr.Info=357149030]="Info",Wr[Wr.TimestampScale=2807729]="TimestampScale",Wr[Wr.MuxingApp=19840]="MuxingApp",Wr[Wr.WritingApp=22337]="WritingApp",Wr[Wr.Tracks=374648427]="Tracks",Wr[Wr.TrackEntry=174]="TrackEntry",Wr[Wr.TrackNumber=215]="TrackNumber",Wr[Wr.TrackUID=29637]="TrackUID",Wr[Wr.TrackType=131]="TrackType",Wr[Wr.FlagEnabled=185]="FlagEnabled",Wr[Wr.FlagDefault=136]="FlagDefault",Wr[Wr.FlagForced=21930]="FlagForced",Wr[Wr.FlagOriginal=21934]="FlagOriginal",Wr[Wr.FlagHearingImpaired=21931]="FlagHearingImpaired",Wr[Wr.FlagVisualImpaired=21932]="FlagVisualImpaired",Wr[Wr.FlagCommentary=21935]="FlagCommentary",Wr[Wr.FlagLacing=156]="FlagLacing",Wr[Wr.Name=21358]="Name",Wr[Wr.Language=2274716]="Language",Wr[Wr.LanguageBCP47=2274717]="LanguageBCP47",Wr[Wr.CodecID=134]="CodecID",Wr[Wr.CodecPrivate=25506]="CodecPrivate",Wr[Wr.CodecDelay=22186]="CodecDelay",Wr[Wr.SeekPreRoll=22203]="SeekPreRoll",Wr[Wr.DefaultDuration=2352003]="DefaultDuration",Wr[Wr.Video=224]="Video",Wr[Wr.PixelWidth=176]="PixelWidth",Wr[Wr.PixelHeight=186]="PixelHeight",Wr[Wr.DisplayWidth=21680]="DisplayWidth",Wr[Wr.DisplayHeight=21690]="DisplayHeight",Wr[Wr.DisplayUnit=21682]="DisplayUnit",Wr[Wr.AlphaMode=21440]="AlphaMode",Wr[Wr.Audio=225]="Audio",Wr[Wr.SamplingFrequency=181]="SamplingFrequency",Wr[Wr.Channels=159]="Channels",Wr[Wr.BitDepth=25188]="BitDepth",Wr[Wr.SimpleBlock=163]="SimpleBlock",Wr[Wr.BlockGroup=160]="BlockGroup",Wr[Wr.Block=161]="Block",Wr[Wr.BlockAdditions=30113]="BlockAdditions",Wr[Wr.BlockMore=166]="BlockMore",Wr[Wr.BlockAdditional=165]="BlockAdditional",Wr[Wr.BlockAddID=238]="BlockAddID",Wr[Wr.BlockDuration=155]="BlockDuration",Wr[Wr.ReferenceBlock=251]="ReferenceBlock",Wr[Wr.Cluster=524531317]="Cluster",Wr[Wr.Timestamp=231]="Timestamp",Wr[Wr.Cues=475249515]="Cues",Wr[Wr.CuePoint=187]="CuePoint",Wr[Wr.CueTime=179]="CueTime",Wr[Wr.CueTrackPositions=183]="CueTrackPositions",Wr[Wr.CueTrack=247]="CueTrack",Wr[Wr.CueClusterPosition=241]="CueClusterPosition",Wr[Wr.Colour=21936]="Colour",Wr[Wr.MatrixCoefficients=21937]="MatrixCoefficients",Wr[Wr.TransferCharacteristics=21946]="TransferCharacteristics",Wr[Wr.Primaries=21947]="Primaries",Wr[Wr.Range=21945]="Range",Wr[Wr.Projection=30320]="Projection",Wr[Wr.ProjectionType=30321]="ProjectionType",Wr[Wr.ProjectionPoseRoll=30325]="ProjectionPoseRoll",Wr[Wr.Attachments=423732329]="Attachments",Wr[Wr.AttachedFile=24999]="AttachedFile",Wr[Wr.FileDescription=18046]="FileDescription",Wr[Wr.FileName=18030]="FileName",Wr[Wr.FileMediaType=18016]="FileMediaType",Wr[Wr.FileData=18012]="FileData",Wr[Wr.FileUID=18094]="FileUID",Wr[Wr.Chapters=272869232]="Chapters",Wr[Wr.Tags=307544935]="Tags",Wr[Wr.Tag=29555]="Tag",Wr[Wr.Targets=25536]="Targets",Wr[Wr.TargetTypeValue=26826]="TargetTypeValue",Wr[Wr.TargetType=25546]="TargetType",Wr[Wr.TagTrackUID=25541]="TagTrackUID",Wr[Wr.TagEditionUID=25545]="TagEditionUID",Wr[Wr.TagChapterUID=25540]="TagChapterUID",Wr[Wr.TagAttachmentUID=25542]="TagAttachmentUID",Wr[Wr.SimpleTag=26568]="SimpleTag",Wr[Wr.TagName=17827]="TagName",Wr[Wr.TagLanguage=17530]="TagLanguage",Wr[Wr.TagString=17543]="TagString",Wr[Wr.TagBinary=17541]="TagBinary",Wr[Wr.ContentEncodings=28032]="ContentEncodings",Wr[Wr.ContentEncoding=25152]="ContentEncoding",Wr[Wr.ContentEncodingOrder=20529]="ContentEncodingOrder",Wr[Wr.ContentEncodingScope=20530]="ContentEncodingScope",Wr[Wr.ContentCompression=20532]="ContentCompression",Wr[Wr.ContentCompAlgo=16980]="ContentCompAlgo",Wr[Wr.ContentCompSettings=16981]="ContentCompSettings",Wr[Wr.ContentEncryption=20533]="ContentEncryption";const Hr=[qr.EBML,qr.Segment],Vr=[qr.SeekHead,qr.Info,qr.Cluster,qr.Tracks,qr.Cues,qr.Attachments,qr.Chapters,qr.Tags],jr=[...Hr,...Vr],Kr=16,Xr=e=>{if(e.remainingLength<1)return null;const t=ac(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength<i?null:i},$r=e=>{if(e.remainingLength<1)return null;const t=ac(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength<i-1)return null;let a=t&r-1;for(let s=1;s<i;s++)a*=256,a+=ac(e);return a},Gr=(e,t)=>{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r<t;r++)i*=256,i+=ac(e);return i},Qr=e=>{const t=Xr(e);if(null===t)return null;if(e.remainingLength<t)return null;return Gr(e,t)},Yr=e=>{if(e.remainingLength<1)return null;if(255===ac(e))return;e.skip(-1);const t=$r(e);return null===t?null:72057594037927940!==t?t:void 0},Jr=e=>{j(e.remainingLength>=2);const t=Qr(e);if(null===t)return null;const i=Yr(e);return null===i?null:{id:t,size:i}},Zr=(e,t)=>{const i=rc(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return String.fromCharCode(...i.subarray(0,r))},ea=(e,t)=>{const i=rc(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return Z.decode(i.subarray(0,r))},ta=(e,t)=>{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?kc(e):yc(e)},ia=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;null===r||s<r;){let t=e.requestSliceRange(s,2,Kr);if(Xe(t)&&(t=await t),!t)break;const i=Jr(t);if(!i)break;if(a.has(i.id))return{pos:s,found:!0};ya(i.size),s=t.filePos+i.size}return{pos:null!==r&&r>s?r:s,found:!1}},ra=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;s<r;){let t=e.requestSliceRange(s,0,Math.min(65536,r-s));if(Xe(t)&&(t=await t),!t)break;if(t.length<8)break;for(let e=0;e<t.length-8;e++){t.filePos=s;const e=Qr(t);if(null!==e&&a.has(e))return s;s++}}return null},aa="V_MPEG4/ISO/AVC",sa="V_MPEGH/ISO/HEVC",na="V_VP8",oa="V_VP9",ca="V_AV1",la="V_PRORES",ua="A_AAC",ha="A_MPEG/L3",da="A_OPUS",fa="A_VORBIS",ma="A_FLAC",pa="A_AC3",ga="A_EAC3",ka="A_DTS";function ya(e){if(void 0===e)throw new Error("Undefined element size is used in a place where it is not supported.")}var ba,wa,Ta,Sa,va,Pa;(wa=ba||(ba={}))[wa.None=0]="None",wa[wa.Xiph=1]="Xiph",wa[wa.FixedSize=2]="FixedSize",wa[wa.Ebml=3]="Ebml",(Sa=Ta||(Ta={}))[Sa.Block=1]="Block",Sa[Sa.Private=2]="Private",Sa[Sa.Next=4]="Next",(Pa=va||(va={}))[Pa.Zlib=0]="Zlib",Pa[Pa.Bzlib=1]="Bzlib",Pa[Pa.lzo1x=2]="lzo1x",Pa[Pa.HeaderStripping=3]="HeaderStripping";const Ia=[{id:qr.SeekHead,flag:"seekHeadSeen"},{id:qr.Info,flag:"infoSeen"},{id:qr.Tracks,flag:"tracksSeen"},{id:qr.Cues,flag:"cuesSeen"}],xa=10485760;class Ca extends ir{constructor(e){super(e),this.readMetadataPromise=null,this.segments=[],this.currentSegment=null,this.currentTrack=null,this.currentCluster=null,this.currentBlock=null,this.currentBlockAdditional=null,this.currentCueTime=null,this.currentDecodingInstruction=null,this.currentTagTargetIsMovie=!0,this.currentSimpleTagName=null,this.currentAttachedFile=null,this.isWebM=!1,this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.segments.flatMap(e=>e.tracks.map(e=>e.trackBacking))}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>"video"===e.info?.type)),hasAudio:this.segments.some(e=>e.tracks.some(e=>"audio"===e.info?.type)),codecStrings:t.filter(Boolean)})}async getMetadataTags(){await this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&await this.loadSegmentMetadata(t),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e={...e,...t.metadataTags};return e}readMetadata(){return this.readMetadataPromise??(this.readMetadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,Kr);if(Xe(t)&&(t=await t),!t)break;const i=Jr(t);if(!i)break;const r=i.id;let a=i.size;const s=t.filePos;if(r===qr.EBML){ya(a);let e=this.reader.requestSlice(s,a);if(Xe(e)&&(e=await e),!e)break;this.readContiguousElements(e)}else if(r===qr.Segment){if(await this.readSegment(s,a),void 0===a)break;if(null===this.reader.fileSize)break}else if(r===qr.Cluster){if(null===this.reader.fileSize)break;if(void 0===a){a=(await ia(this.reader,s,jr,this.reader.fileSize)).pos-s}const e=X(this.segments);e&&(e.elementEndPos=s+a)}ya(a),e=s+a}})())}async readSegment(e,t){this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let i=e;for(;null===this.currentSegment.elementEndPos||i<this.currentSegment.elementEndPos;){let e=this.reader.requestSliceRange(i,2,Kr);if(Xe(e)&&(e=await e),!e)break;const t=i,r=Jr(e);if(!r||!Vr.includes(r.id)&&r.id!==qr.Void){const e=await ra(this.reader,t,Vr,Math.min(this.currentSegment.elementEndPos??1/0,t+xa));if(e){i=e;continue}break}const{id:a,size:s}=r,n=e.filePos,o=Ia.findIndex(e=>e.id===a);if(-1!==o){const e=Ia[o].flag;this.currentSegment[e]=!0,ya(s);let t=this.reader.requestSlice(n,s);Xe(t)&&(t=await t),t&&this.readContiguousElements(t)}else if(a===qr.Tags||a===qr.Attachments){a===qr.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,ya(s);let e=this.reader.requestSlice(n,s);Xe(e)&&(e=await e),e&&this.readContiguousElements(e)}else if(a===qr.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===s)break;i=n+s}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const n of this.currentSegment.seekEntries){const t=Ia.find(e=>e.id===n.id);if(!t)continue;if(this.currentSegment[t.flag])continue;let i=this.reader.requestSliceRange(e+n.segmentPosition,2,Kr);if(Xe(i)&&(i=await i),!i)continue;const r=Jr(i);if(!r)continue;const{id:a,size:s}=r;if(a!==t.id)continue;ya(s),this.currentSegment[t.flag]=!0;let o=this.reader.requestSlice(i.filePos,s);Xe(o)&&(o=await o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const n of this.currentSegment.tracks)null!==n.defaultDurationNs&&(n.defaultDuration=this.currentSegment.timestampFactor*n.defaultDurationNs/1e9);const r=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const n of this.currentSegment.cuePoints){const e=r.get(n.trackId);e&&e.cuePoints.push(n)}for(const n of this.currentSegment.tracks){n.cuePoints.sort((e,t)=>e.time-t.time);for(let e=0;e<n.cuePoints.length-1;e++){const t=n.cuePoints[e],i=n.cuePoints[e+1];t.time===i.time&&(n.cuePoints.splice(e+1,1),e--)}}let a=null,s=-1/0;for(const n of this.currentSegment.tracks)n.cuePoints.length>s&&(s=n.cuePoints.length,a=n);for(const n of this.currentSegment.tracks)0===n.cuePoints.length&&(n.cuePoints=a.cuePoints);this.currentSegment=null}async readCluster(e,t){if(t.lastReadCluster?.elementStartPos===e)return t.lastReadCluster;let i=this.reader.requestSliceRange(e,2,Kr);Xe(i)&&(i=await i),j(i);const r=e,a=Jr(i);j(a);j(a.id===qr.Cluster);let s=a.size;const n=i.filePos;if(void 0===s){s=(await ia(this.reader,n,jr,t.elementEndPos)).pos-n}let o=this.reader.requestSlice(n,s);Xe(o)&&(o=await o);const c={segment:t,elementStartPos:r,elementEndPos:n+s,dataStartPos:n,timestamp:-1,trackData:new Map};if(this.currentCluster=c,o){const e=this.readContiguousElements(o,jr);c.elementEndPos=e}for(const[,l]of c.trackData){const e=l.track;j(l.blocks.length>0);let t=!1;for(let r=0;r<l.blocks.length;r++){const e=l.blocks[r];e.timestamp+=c.timestamp,t||(t=e.lacing!==ba.None)}l.presentationTimestamps=l.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let r=0;r<l.presentationTimestamps.length;r++){const t=l.presentationTimestamps[r],i=l.blocks[t.blockIndex];if(null===l.firstKeyFrameTimestamp&&i.isKeyFrame&&(l.firstKeyFrameTimestamp=i.timestamp),r<l.presentationTimestamps.length-1){const e=l.presentationTimestamps[r+1];i.duration=e.timestamp-i.timestamp}else 0===i.duration&&null!=e.defaultDuration&&i.lacing===ba.None&&(i.duration=e.defaultDuration)}t&&(this.expandLacedBlocks(l.blocks,e),l.presentationTimestamps=l.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const i=l.blocks[l.presentationTimestamps[0].blockIndex],a=l.blocks[X(l.presentationTimestamps).blockIndex];l.startTimestamp=i.timestamp,l.endTimestamp=a.timestamp+a.duration;const s=pe(e.clusterPositionCache,l.startTimestamp,e=>e.startTimestamp);-1!==s&&e.clusterPositionCache[s].elementStartPos===r||e.clusterPositionCache.splice(s+1,0,{elementStartPos:c.elementStartPos,startTimestamp:l.startTimestamp})}return t.lastReadCluster=c,c}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){for(let i=0;i<e.length;i++){const r=e[i];if(r.lacing===ba.None)continue;r.decoded||(r.data=this.decodeBlockData(t,r.data),r.decoded=!0);const a=tc.tempFromBytes(r.data),s=[],n=ac(a)+1;switch(r.lacing){case ba.Xiph:{let e=0;for(let t=0;t<n-1;t++){let t=0;for(;a.bufferPos<a.length;){const i=ac(a);if(t+=i,i<255){s.push(t),e+=t;break}}}s.push(a.length-(a.bufferPos+e))}break;case ba.FixedSize:{const e=a.length-1,t=Math.floor(e/n);for(let i=0;i<n;i++)s.push(t)}break;case ba.Ebml:{const e=$r(a);j(null!==e);let t=e;s.push(t);let i=t;for(let r=1;r<n-1;r++){const e=a.bufferPos,r=$r(a);j(null!==r);t+=r-((1<<7*(a.bufferPos-e)-1)-1),s.push(t),i+=t}s.push(a.length-(a.bufferPos+i))}break;default:j(!1)}j(s.length===n),e.splice(i,1);const o=r.duration||n*(t.defaultDuration??0);for(let t=0;t<n;t++){const c=s[t],l=rc(a,c),u=r.timestamp+o*t/n,h=o/n;e.splice(i+t,0,{timestamp:u,duration:h,isKeyFrame:r.isKeyFrame,data:l,lacing:ba.None,decoded:!0,postProcessed:!1,mainAdditional:r.mainAdditional})}i+=n,i--}}async loadSegmentMetadata(e){for(const t of e.seekEntries){if(t.id!==qr.Tags||e.tagsSeen){if(t.id!==qr.Attachments||e.attachmentsSeen)continue}else;let i=this.reader.requestSliceRange(e.dataStartPos+t.segmentPosition,2,Kr);if(Xe(i)&&(i=await i),!i)continue;const r=Jr(i);if(!r||r.id!==t.id)continue;const{size:a}=r;ya(a),j(!this.currentSegment),this.currentSegment=e;let s=this.reader.requestSlice(i.filePos,a);Xe(s)&&(s=await s),s&&this.readContiguousElements(s),this.currentSegment=null,t.id===qr.Tags?e.tagsSeen=!0:t.id===qr.Attachments&&(e.attachmentsSeen=!0)}}readContiguousElements(e,t){for(;e.remainingLength>=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){const i=Jr(e);if(!i)return!1;if(t&&t.includes(i.id))return!1;const{id:r,size:a}=i,s=e.filePos;switch(ya(a),r){case qr.DocType:this.isWebM="webm"===Zr(e,a);break;case qr.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(s,a)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case qr.SeekID:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=Gr(e,a)}break;case qr.SeekPosition:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=Gr(e,a)}break;case qr.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=Gr(e,a),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case qr.Duration:if(!this.currentSegment)break;this.currentSegment.duration=ta(e,a);break;case qr.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:{...ht,primary:!1},trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(s,a)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>"decompress"!==e.data?.type||e.scope!==Ta.Block||e.data.algorithm!==va.HeaderStripping)&&(ct._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===aa)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===sa)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===na)this.currentTrack.info.codec="vp8";else if(t===oa)this.currentTrack.info.codec="vp9";else if(t===ca)this.currentTrack.info.codec="av1";else if(t===la){const e=this.currentTrack.codecPrivate?Z.decode(this.currentTrack.codecPrivate):"";Oi.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new Ea(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===ua?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===ha?this.currentTrack.info.codec="mp3":t===da?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=Wi):t===fa?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===ma?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===pa?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===ga?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===ka?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new _a(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case qr.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=Gr(e,a);break;case qr.TrackType:{if(!this.currentTrack)break;const t=Gr(e,a);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:{...ce},alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case qr.FlagEnabled:if(!this.currentTrack)break;Gr(e,a)||(this.currentTrack=null);break;case qr.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!Gr(e,a);break;case qr.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!Gr(e,a);break;case qr.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!Gr(e,a);break;case qr.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!Gr(e,a);break;case qr.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!Gr(e,a);break;case qr.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!Gr(e,a);break;case qr.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=Zr(e,a);break;case qr.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=rc(e,a);break;case qr.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=Gr(e,a);break;case qr.Name:if(!this.currentTrack)break;this.currentTrack.name=ea(e,a);break;case qr.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=Zr(e,a),Ae(this.currentTrack.languageCode)||(this.currentTrack.languageCode=xe);break;case qr.LanguageBCP47:{if(!this.currentTrack)break;const t=Zr(e,a).split("-")[0];this.currentTrack.languageCode=t||xe,this.currentTrack.hasLanguageBcp47=!0}break;case qr.Video:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.PixelWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.width=Gr(e,a);break;case qr.PixelHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.height=Gr(e,a);break;case qr.DisplayWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayWidth=Gr(e,a);break;case qr.DisplayHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayHeight=Gr(e,a);break;case qr.DisplayUnit:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayUnit=Gr(e,a);break;case qr.AlphaMode:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.alphaMode=1===Gr(e,a);break;case qr.Colour:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.MatrixCoefficients:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a),i=ne[t];this.currentTrack.info.colorSpace.matrix=i}break;case qr.Range:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case qr.TransferCharacteristics:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a),i=ae[t];this.currentTrack.info.colorSpace.transfer=i}break;case qr.Primaries:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a),i=ie[t];this.currentTrack.info.colorSpace.primaries=i}break;case qr.Projection:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.ProjectionPoseRoll:{if("video"!==this.currentTrack?.info?.type)break;const t=-ta(e,a);try{this.currentTrack.info.rotation=K(t)}catch{}}break;case qr.Audio:if("audio"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.SamplingFrequency:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.sampleRate=ta(e,a);break;case qr.Channels:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.numberOfChannels=Gr(e,a);break;case qr.BitDepth:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.bitDepth=Gr(e,a);break;case qr.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(s,a)),this.currentCueTime=null;break;case qr.CueTime:this.currentCueTime=Gr(e,a);break;case qr.CueTrackPositions:{if(null===this.currentCueTime)break;j(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(s,a)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case qr.CueTrack:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=Gr(e,a)}break;case qr.CueClusterPosition:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;j(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+Gr(e,a)}break;case qr.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=Gr(e,a);break;case qr.SimpleBlock:{if(!this.currentCluster)break;const t=$r(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=cc(e),n=ac(e),o=n>>1&3;let c=!!(128&n);"audio"===i.track.info?.type&&i.track.info.codec&&(c=!0);const l=rc(e,a-(e.filePos-s)),u=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:c,data:l,lacing:o,decoded:!u,postProcessed:!1,mainAdditional:null})}break;case qr.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(s,a)),this.currentBlock=null;break;case qr.Block:{if(!this.currentCluster)break;const t=$r(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=cc(e),n=ac(e)>>1&3,o=rc(e,a-(e.filePos-s)),c=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:o,lacing:n,decoded:!c,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case qr.BlockAdditions:this.readContiguousElements(e.slice(s,a));break;case qr.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(s,a)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case qr.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=rc(e,a);break;case qr.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=Gr(e,a);break;case qr.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=Gr(e,a);break;case qr.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case qr.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(s,a));break;case qr.Targets:this.readContiguousElements(e.slice(s,a));break;case qr.TargetTypeValue:50!==Gr(e,a)&&(this.currentTagTargetIsMovie=!1);break;case qr.TagTrackUID:case qr.TagEditionUID:case qr.TagChapterUID:case qr.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case qr.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(s,a));break;case qr.TagName:this.currentSimpleTagName=ea(e,a);break;case qr.TagString:{if(!this.currentSimpleTagName)break;const t=ea(e,a);this.processTagValue(this.currentSimpleTagName,t)}break;case qr.TagBinary:{if(!this.currentSimpleTagName)break;const t=rc(e,a);this.processTagValue(this.currentSimpleTagName,t)}break;case qr.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(s,a));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(t.raw??(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new ut(this.currentAttachedFile.fileData,this.currentAttachedFile.fileMediaType??void 0,this.currentAttachedFile.fileName??void 0,this.currentAttachedFile.fileDescription??void 0)),this.currentAttachedFile.fileMediaType?.startsWith("image/")&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}t.images??(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:this.currentAttachedFile.fileName??void 0,description:this.currentAttachedFile.fileDescription??void 0})}this.currentAttachedFile=null}break;case qr.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=0n;for(let r=0;r<t;r++)i<<=8n,i+=BigInt(ac(e));return i})(e,a);break;case qr.FileName:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=ea(e,a);break;case qr.FileMediaType:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=Zr(e,a);break;case qr.FileData:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=rc(e,a);break;case qr.FileDescription:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=ea(e,a);break;case qr.ContentEncodings:if(!this.currentTrack)break;this.readContiguousElements(e.slice(s,a)),this.currentTrack.decodingInstructions.sort((e,t)=>t.order-e.order);break;case qr.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Ta.Block,data:null},this.readContiguousElements(e.slice(s,a)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case qr.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=Gr(e,a);break;case qr.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=Gr(e,a);break;case qr.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:va.Zlib,settings:null},this.readContiguousElements(e.slice(s,a));break;case qr.ContentCompAlgo:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.algorithm=Gr(e,a);break;case qr.ContentCompSettings:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.settings=rc(e,a);break;case qr.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=s+a,!0}decodeBlockData(e,t){j(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(j(r.data),"decompress"===r.data.type)if(r.data.algorithm===va.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i;if(!this.currentSegment?.metadataTags)return;const r=this.currentSegment.metadataTags;if(r.raw??(r.raw={}),(i=r.raw)[e]??(i[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":r.title??(r.title=t);break;case"description":r.description??(r.description=t);break;case"artist":r.artist??(r.artist=t);break;case"album":r.album??(r.album=t);break;case"album_artist":r.albumArtist??(r.albumArtist=t);break;case"genre":r.genre??(r.genre=t);break;case"comment":r.comment??(r.comment=t);break;case"lyrics":r.lyrics??(r.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||(r.date??(r.date=e))}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.trackNumber??(r.trackNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.tracksTotal??(r.tracksTotal=a))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.discNumber??(r.discNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.discsTotal??(r.discsTotal=a))}}}async getDurationFromMetadata(e){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){j(r.trackBacking);const e=await r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(t??1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=t??0,i}}class Ba{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)}async getLiveRefreshInterval(){return null}async getFirstPacket(e){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)}intoTimescale(e){return Ce(e*this.internalTrack.segment.timestampFactor)}async getPacket(e,t){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=pe(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)}async getNextPacket(e,t){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1<t.blocks.length)return{blockIndex:i.blockIndex+1,correctBlockFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{blockIndex:0,correctBlockFound:!0}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)}async getKeyPacket(e,t){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=we(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)}async getNextKeyPacket(e,t){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return j(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)}async fetchPacketInCluster(e,t,i){if(-1===t)return null;const r=e.trackData.get(this.internalTrack.id).blocks[t];if(j(r),r.decoded||(r.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,r.data),r.decoded=!0),!r.postProcessed){if("prores"===this.internalTrack.info?.codec){if(!(r.data.length>=8&&105===r.data[4]&&99===r.data[5]&&112===r.data[6]&&102===r.data[7])){const e=new Uint8Array(r.data.length+8);J(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(r.data,8),r.data=e}}r.postProcessed=!0}const a=i.metadataOnly?rr:r.data,s=r.timestamp/this.internalTrack.segment.timestampFactor,n=r.duration/this.internalTrack.segment.timestampFactor,o={};r.mainAdditional&&"video"===this.internalTrack.info?.type&&this.internalTrack.info.alphaMode&&(o.alpha=i.metadataOnly?rr:r.mainAdditional,o.alphaByteLength=r.mainAdditional.byteLength);const c=new ar(a,r.isKeyFrame?"key":"delta",s,n,e.dataStartPos+t,r.data.byteLength,o);return this.packetToClusterLocation.set(c,{cluster:e,blockIndex:t}),c}async performClusterLookup(e,t,i,r,a){const{demuxer:s,segment:n}=this.internalTrack;let o=null,c=null,l=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,a);-1!==i&&(c=e,l=i)}const u=pe(this.internalTrack.cuePoints,i,e=>e.time),h=-1!==u?this.internalTrack.cuePoints[u]:null,d=pe(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),f=-1!==d?this.internalTrack.clusterPositionCache[d]:null,m=Math.max(h?.clusterPosition??0,f?.elementStartPos??0)||null;let p;for(e?null===m||e.elementStartPos>=m?(p=e.elementEndPos,o=e):p=m:p=m??n.clusterSeekStartPos;null===n.elementEndPos||p<=n.elementEndPos-2;){if(o){const e=o.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=s.reader.requestSliceRange(p,2,Kr);if(Xe(e)&&(e=await e),!e)break;const i=p,u=Jr(e);if(!u||!Vr.includes(u.id)&&u.id!==qr.Void){const e=await ra(s.reader,i,Vr,Math.min(n.elementEndPos??1/0,i+xa));if(e){p=e;continue}break}const h=u.id;let d=u.size;const f=e.filePos;if(h===qr.Cluster){o=await s.readCluster(i,n),d=o.elementEndPos-f;const{blockIndex:e,correctBlockFound:r}=t(o);if(r)return this.fetchPacketInCluster(o,e,a);-1!==e&&(c=o,l=e)}if(void 0===d){j(h!==qr.Cluster);d=(await ia(s.reader,f,jr,n.elementEndPos)).pos-f}const m=f+d;if(null===n.elementEndPos){let e=s.reader.requestSliceRange(m,2,Kr);if(Xe(e)&&(e=await e),!e)break;if(Qr(e)===qr.Segment){n.elementEndPos=m;break}}p=m}if(h&&(!c||c.elementStartPos<h.clusterPosition)){const e=this.internalTrack.cuePoints[u-1];j(!e||e.time<h.time);const i=e?.time??-1/0;return this.performClusterLookup(null,t,i,r,a)}return c?this.fetchPacketInCluster(c,l,a):null}}class Ea extends Ba{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.info.rotation}async getColorSpace(){const e=await this.getDecoderConfig();return e?{primaries:e.colorSpace?.primaries,transfer:e.colorSpace?.transfer,matrix:e.colorSpace?.matrix,fullRange:e.colorSpace?.fullRange}:this.internalTrack.info.colorSpace}async canBeTransparent(){return this.internalTrack.info.alphaMode||"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{var e,t,i,r;let a=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(a=await this.getFirstPacket({}));const s={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&a?Ft(a.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&a?Wt(a.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&a?ei(a.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&a?ii(a.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&a?ri(a.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!oe(this.internalTrack.info.colorSpace)){const a=Ui(s);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const n={codec:zi(s),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(n.displayAspectWidth=this.internalTrack.info.squarePixelWidth,n.displayAspectHeight=this.internalTrack.info.squarePixelHeight),n})()):null}}class _a extends Ba{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&xi(e.data)}return{codec:qi({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Ra=async(e,t,i,r=null)=>{let a=t;for(;null===i||a<i;){const t=null!==i?Math.min(65536,i-a):65536;let s=e.requestSliceRange(a,4,t);if(Xe(s)&&(s=await s),!s||s.length<4)break;for(;s.remainingLength>=4;){const t=s.filePos,i=uc(s),n=null!==e.fileSize?e.fileSize-a:null,o=Yi(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&tr(o.header.channel)===tr(r.channel)))return{header:o.header,startPos:a};s.filePos=t+o.bytesAdvanced,a=s.filePos}}return null};class Fa extends ir{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new ue,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new Aa(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,xc);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=_c(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=await Ra(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=Qi(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(Xe(r)&&(r=await r),r){const a=uc(r);if(a===$i||a===Gi){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(Xe(t)&&(t=await t),t){const e=rc(t,12),i=J(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&Zi.FrameCount?i.getUint32(4,!1):null,fileSize:r&Zi.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const a=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:a,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame}async getMimeType(){return"audio/mpeg"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=!0;let a=this.reader.requestSlice(i.filePos,r.size);if(Xe(a)&&(a=await a),!a)break;Rc(a,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=Ic){let e=this.reader.requestSlice(this.reader.fileSize-Ic,Ic);Xe(e)&&(e=await e),j(e);"TAG"===bc(e,3)&&Bc(e,this.metadataTags)}return this.metadataTags}finally{e()}}}class Aa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return j(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.demuxer;if(j(null!==e.firstFrameHeader),j(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,a=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(a<<t):2===i?144*r/a:12*r/a*4),n=(e.reader.fileSize-e.firstFrameHeaderPos)/s;return Math.round(n)*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}var t,i,r,a;return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return xe}getCodec(){return"mp3"}getInternalCodecId(){return null}getNumberOfChannels(){return j(this.demuxer.firstFrameHeader),tr(this.demuxer.firstFrameHeader.channel)}getSampleRate(){return j(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}getDisposition(){return{...ht}}async getDecoderConfig(){return j(this.demuxer.firstFrameHeader),{codec:"mp3",numberOfChannels:tr(this.demuxer.firstFrameHeader.channel),sampleRate:this.demuxer.firstFrameHeader.sampleRate}}async getPacketAtIndex(e,t){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=rr;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Xe(e)&&(e=await e),!e)return null;r=rc(e,i.dataSize)}return new ar(r,"key",i.timestamp,i.duration,e,i.dataSize)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=me(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=pe(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);await this.demuxer.advanceReader()}}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Ma=1399285583,Da=new Uint32Array(256);for(let hl=0;hl<256;hl++){let e=hl<<24;for(let t=0;t<8;t++)e=2147483648&e?e<<1^79764919:e<<1;Da[hl]=e>>>0&4294967295}const Na=e=>{const t=J(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let a=0;a<e.length;a++){const t=e[a];r=(r<<8^Da[r>>>24^t])>>>0}return t.setUint32(22,i,!0),r},Oa=(e,t,i)=>{let r=0,a=null;if(e.length>0)if("vorbis"===t.codec){j(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,n=(e[0]&s)>>1;if(n>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let o=i;const c=t.vorbisInfo.modeBlockflags[n];if(a=t.vorbisInfo.blocksizes[c],1===c){const i=1+(1|s),r=e[0]&i?1:0;o=t.vorbisInfo.blocksizes[r]}r=null!==o?o+a>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:ai[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:a}},La=27,za=282,Ua=e=>{const t=e.filePos;if(hc(e)!==Ma)return null;e.skip(1);const i=ac(e),r=gc(e),a=hc(e),s=hc(e),n=hc(e),o=ac(e),c=new Uint8Array(o);for(let h=0;h<o;h++)c[h]=ac(e);const l=27+o,u=c.reduce((e,t)=>e+t,0);return{headerStartPos:t,totalSize:l+u,dataStartPos:t+l,dataSize:u,headerType:i,granulePosition:r,serialNumber:a,sequenceNumber:s,checksum:n,lacingValues:c}},qa=(e,t)=>{for(;e.filePos<t-3;){const t=hc(e),i=79;if((255&t)===i||(t>>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===Ma)return!0;e.skip(1)}}return!1};class Wa extends ir{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,La,za);if(Xe(t)&&(t=await t),!t)break;const i=Ua(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=await this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?await this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&await this.readOpusMetadata(e,t),null!==t.codecInfo.codec&&this.trackBackings.push(new Ha(t,this)))}})())}async readVorbisMetadata(e,t){let i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=await this.findNextPacketStart(r),!i)return;const a=await this.readPacket(i.startPage,i.startSegmentIndex);if(!a)return;if(3!==r.data[0]||5!==a.data[0])return;const s=[],n=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};n(e.data.length),n(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+a.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(a.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=a;const c=J(e.data);t.numberOfChannels=c.getUint8(11),t.sampleRate=c.getUint32(12,!0);const l=c.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&l),1<<(l>>4)],modeBlockflags:si(a.data).modeBlockflags},li(r.data.subarray(7),this.metadataTags)}async readOpusMetadata(e,t){const i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const a=(e=>{const t=J(e),i=t.getUint8(9),r=t.getUint16(10,!0),a=t.getUint32(12,!0),s=t.getInt16(16,!0),n=t.getUint8(18);let o=null;return n&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:a,outputGain:s,channelMappingFamily:n,channelMappingTable:o}})(e.data);t.numberOfChannels=a.outputChannelCount,t.sampleRate=Wi,t.codecInfo.opusInfo={preSkip:a.preSkip},li(r.data.subarray(8),this.metadataTags)}async readPacket(e,t){j(t<e.lacingValues.length);let i=0;for(let u=0;u<t;u++)i+=e.lacingValues[u];let r=e,a=i,s=t;const n=[];e:for(;;){let t=this.reader.requestSlice(r.dataStartPos,r.dataSize);Xe(t)&&(t=await t),j(t);const o=rc(t,r.dataSize);for(;;){if(s===r.lacingValues.length){n.push(o.subarray(i,a));break}const e=r.lacingValues[s];if(a+=e,e<255){n.push(o.subarray(i,a));break e}s++}let c=r.headerStartPos+r.totalSize;for(;;){let t=this.reader.requestSliceRange(c,La,za);if(Xe(t)&&(t=await t),!t)return null;const i=Ua(t);if(!i)return null;if(r=i,r.serialNumber===e.serialNumber)break;c=r.headerStartPos+r.totalSize}i=0,a=0,s=0}const o=n.reduce((e,t)=>e+t.length,0);if(0===o)return null;const c=new Uint8Array(o);let l=0;for(let u=0;u<n.length;u++){const e=n[u];c.set(e,l),l+=e.length}return{data:c,endPage:r,endSegmentIndex:s}}async findNextPacketStart(e){if(e.endSegmentIndex<e.endPage.lacingValues.length-1)return{startPage:e.endPage,startSegmentIndex:e.endSegmentIndex+1};if(!!(4&e.endPage.headerType))return null;let t=e.endPage.headerStartPos+e.endPage.totalSize;for(;;){let i=this.reader.requestSliceRange(t,La,za);if(Xe(i)&&(i=await i),!i)return null;const r=Ua(i);if(!r)return null;if(r.serialNumber===e.endPage.serialNumber)return{startPage:r,startSegmentIndex:0};t=r.headerStartPos+r.totalSize}}async getMimeType(){await this.readMetadata();return(e=>{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(await Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)))).filter(Boolean)})}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}class Ha{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new ue,this.internalSampleRate="opus"===e.codecInfo.codec?Wi:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return j(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}async getDecoderConfig(){return j(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:this.bitstream.description??void 0}}getName(){return null}getLanguageCode(){return xe}getDisposition(){return{...ht,primary:!1}}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(j(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:a}=Oa(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new ar(i.metadataOnly?rr:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:a}),s}async getFirstPacket(e){j(this.bitstream.lastMetadataPacket);const t=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(j(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=await this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)}async getNextPacket(e,t){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=await this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const a=i.timestampInSamples+i.durationInSamples,s=await this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:a,vorbisLastBlocksize:i.vorbisBlockSize},t)}async getPacket(e,t){if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const i=Ce(e*this.internalSampleRate);if(0===i)return this.getFirstPacket(t);if(i<0)return null;j(this.bitstream.lastMetadataPacket);const r=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!r)return null;let a=r.startPage,s=this.demuxer.reader.fileSize;const n=[a];e:for(;a.headerStartPos+a.totalSize<s;){const e=a.headerStartPos,t=Math.floor((e+s)/2);let r=t;for(;;){const e=Math.min(r+65307,s-La);let o=this.demuxer.reader.requestSlice(r,e-r);Xe(o)&&(o=await o),j(o);if(!qa(o,e)){s=t+La;continue e}let c=this.demuxer.reader.requestSliceRange(o.filePos,La,za);Xe(c)&&(c=await c),j(c);const l=Ua(c);j(l);let u=!1;if(l.serialNumber===this.bitstream.serialNumber)u=!0;else{let e=this.demuxer.reader.requestSlice(l.headerStartPos,l.totalSize);Xe(e)&&(e=await e),j(e);const t=rc(e,l.totalSize);u=Na(t)===l.checksum}if(!u){r=l.headerStartPos+4;continue}if(u&&l.serialNumber!==this.bitstream.serialNumber){r=l.headerStartPos+l.totalSize;continue}if(!(-1===l.granulePosition)){this.granulePositionToTimestampInSamples(l.granulePosition)>i?s=l.headerStartPos:(a=l,n.push(l));continue e}r=l.headerStartPos+l.totalSize}}let o=r.startPage;for(const k of n){if(k.granulePosition===a.granulePosition)break;(!o||k.headerStartPos>o.headerStartPos)&&(o=k)}let c=o;const l=[c];for(;c.serialNumber!==this.bitstream.serialNumber||c.granulePosition!==a.granulePosition;){const e=c.headerStartPos+c.totalSize;let t=this.demuxer.reader.requestSliceRange(e,La,za);Xe(t)&&(t=await t),j(t);const i=Ua(t);j(i),c=i,c.serialNumber===this.bitstream.serialNumber&&l.push(c)}j(-1!==c.granulePosition);let u,h,d=null,f=c,m=0;if(c.headerStartPos===r.startPage.headerStartPos)u=this.granulePositionToTimestampInSamples(0),h=!0,d=0;else{u=0,h=!1;for(let t=c.lacingValues.length-1;t>=0;t--){if(c.lacingValues[t]<255){d=t+1;break}}if(null===d)throw new Error("Invalid page with granule position: no packets end on this page.");m=d-1;const e={data:rr,endPage:f,endSegmentIndex:m};if(await this.demuxer.findNextPacketStart(e)){const e=ja(l,c,d);j(e);const t=Va(l,e.page,e.segmentIndex);t&&(c=t.page,d=t.segmentIndex)}else for(;;){const e=ja(l,c,d);if(!e)break;const t=Va(l,e.page,e.segmentIndex);if(!t)break;if(c=t.page,d=t.segmentIndex,e.page.headerStartPos!==f.headerStartPos){f=e.page,m=e.segmentIndex;break}}}let p=null,g=null;for(;null!==c;){j(null!==d);const e=await this.demuxer.readPacket(c,d);if(!e)break;if(!(c.headerStartPos===r.startPage.headerStartPos&&d<r.startSegmentIndex)){let r=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:u,vorbisLastBlocksize:g?.vorbisBlockSize??null},t);j(r);let a=this.encodedPacketToMetadata.get(r);if(j(a),h||e.endPage.headerStartPos!==f.headerStartPos||e.endSegmentIndex!==m?u+=a.durationInSamples:(u=this.granulePositionToTimestampInSamples(c.granulePosition),h=!0,r=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:u-a.durationInSamples,vorbisLastBlocksize:g?.vorbisBlockSize??null},t),j(r),a=this.encodedPacketToMetadata.get(r),j(a)),p=r,g=a,h&&(Math.max(u,0)>i||Math.max(a.timestampInSamples,0)===i))break}const a=await this.demuxer.findNextPacketStart(e);if(!a)break;c=a.startPage,d=a.startSegmentIndex}return p}async getPacketSequential(e,t){const i=await this.sequentialScanMutex.acquire();try{const i=Ce(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=pe(this.sequentialScanCache,i,e=>e.timestampInSamples);let a;if(-1!==r){const e=this.sequentialScanCache[r];a=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else a=await this.getFirstPacket(t);let s=0;for(;a&&a.timestamp<e;){const i=await this.getNextPacket(a,t);if(!i||i.timestamp>e)break;if(a=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(a);j(e),this.sequentialScanCache.length>0&&j(X(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return a}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Va=(e,t,i)=>{let r=t,a=i;e:for(;;){for(a--;a>=0;a--){if(r.lacingValues[a]<255){a++;break e}}j(-1===a);if(!(1&r.headerType)){a=0;break}const t=be(e,e=>e.headerStartPos<r.headerStartPos);if(!t)return null;r=t,a=r.lacingValues.length}if(j(-1!==a),a===r.lacingValues.length){const t=e[e.indexOf(r)+1];j(t),r=t,a=0}return{page:r,segmentIndex:a}},ja=(e,t,i)=>{if(i>0)return{page:t,segmentIndex:i-1};const r=be(e,e=>e.headerStartPos<t.headerStartPos);return r?{page:r,segmentIndex:r.lacingValues.length-1}:null};var Ka,Xa;(Xa=Ka||(Ka={}))[Xa.PCM=1]="PCM",Xa[Xa.IEEE_FLOAT=3]="IEEE_FLOAT",Xa[Xa.ALAW=6]="ALAW",Xa[Xa.MULAW=7]="MULAW",Xa[Xa.EXTENSIBLE=65534]="EXTENSIBLE";class $a extends ir{constructor(e){super(e),this.metadataPromise=null,this.dataStart=-1,this.dataSize=-1,this.audioInfo=null,this.trackBackings=[],this.lastKnownPacketIndex=0,this.metadataTags={},this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=this.reader.requestSlice(0,12);Xe(e)&&(e=await e),j(e);const t=bc(e,4),i="RIFX"!==t,r="RF64"===t,a=lc(e,i);let s=r?this.reader.fileSize:Math.min(a+8,this.reader.fileSize??1/0);if("WAVE"!==bc(e,4))throw new Error("Invalid WAVE file - wrong format");let n=0,o=null,c=e.filePos;for(;null===s||c<s;){let e=this.reader.requestSlice(c,8);if(Xe(e)&&(e=await e),!e)break;const t=bc(e,4),a=lc(e,i),l=e.filePos;if(r&&0===n&&"ds64"!==t)throw new Error('Invalid RF64 file: First chunk must be "ds64".');if("fmt "===t)await this.parseFmtChunk(l,a,i);else if("data"===t){if(o??(o=a),this.dataStart=e.filePos,this.dataSize=Math.min(o,(s??1/0)-this.dataStart),null===this.reader.fileSize)break}else if("ds64"===t){let e=this.reader.requestSlice(l,a);if(Xe(e)&&(e=await e),!e)break;const t=fc(e,i);o=fc(e,i),s=Math.min(t+8,this.reader.fileSize??1/0)}else"LIST"===t?await this.parseListChunk(l,a,i):"ID3 "!==t&&"id3 "!==t||await this.parseId3Chunk(l,a);c=l+a+(1&a),n++}if(!this.audioInfo)throw new Error('Invalid WAVE file - missing "fmt " chunk');if(-1===this.dataStart)throw new Error('Invalid WAVE file - missing "data" chunk');const l=this.audioInfo.blockSizeInBytes;this.dataSize=Math.floor(this.dataSize/l)*l,this.trackBackings.push(new Qa(this))})())}async parseFmtChunk(e,t,i){let r=this.reader.requestSlice(e,t);if(Xe(r)&&(r=await r),!r)return;let a=sc(r,i);const s=sc(r,i),n=lc(r,i);r.skip(4);const o=sc(r,i);let c;if(c=14===t?8:sc(r,i),t>=18&&357!==a){const e=sc(r,i),s=t-18;if(Math.min(s,e)>=22&&a===Ka.EXTENSIBLE){r.skip(6);const e=rc(r,16);a=e[0]|e[1]<<8}}if(a!==Ka.MULAW&&a!==Ka.ALAW||(c=8),a!==Ka.PCM&&a!==Ka.IEEE_FLOAT&&a!==Ka.ALAW&&a!==Ka.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${a}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(a===Ka.PCM&&![8,16,24,32].includes(c))throw new Error(`Unsupported WAVE PCM bit depth (${c}). Only 8, 16, 24, and 32 bits are supported.`);if(a===Ka.IEEE_FLOAT&&![32,64].includes(c))throw new Error(`Unsupported WAVE float bit depth (${c}). Only 32 and 64 bits are supported.`);this.audioInfo={format:a,numberOfChannels:s,sampleRate:n,sampleSizeInBytes:Math.ceil(c/8),blockSizeInBytes:o}}async parseListChunk(e,t,i){var r,a,s,n,o,c,l,u,h,d,f;let m=this.reader.requestSlice(e,t);if(Xe(m)&&(m=await m),!m)return;const p=bc(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=bc(m,4),t=lc(m,i),p=rc(m,t);let k=0;for(let i=0;i<p.length&&0!==p[i];i++)k++;const y=String.fromCharCode(...p.subarray(0,k));switch((r=this.metadataTags).raw??(r.raw={}),this.metadataTags.raw[e]=y,e){case"INAM":case"TITL":(a=this.metadataTags).title??(a.title=y);break;case"TIT3":(s=this.metadataTags).description??(s.description=y);break;case"IART":(n=this.metadataTags).artist??(n.artist=y);break;case"IPRD":(o=this.metadataTags).album??(o.album=y);break;case"IPRT":case"ITRK":case"TRCK":{const e=y.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&((c=this.metadataTags).trackNumber??(c.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((l=this.metadataTags).tracksTotal??(l.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||((u=this.metadataTags).date??(u.date=e))}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&((h=this.metadataTags).date??(h.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":(d=this.metadataTags).genre??(d.genre=y);break;case"ICMT":case"CMNT":case"COMM":(f=this.metadataTags).comment??(f.comment=y)}g+=8+t+(1&t)}}async parseId3Chunk(e,t){let i=this.reader.requestSlice(e,t);if(Xe(i)&&(i=await i),!i)return;const r=_c(i);if(r){const a=t-xc;if(r.size=Math.min(r.size,a),r.size>0){const t=i.slice(e+xc,r.size);Rc(t,r,this.metadataTags)}}}getCodec(){if(j(this.audioInfo),this.audioInfo.format===Ka.MULAW)return"ulaw";if(this.audioInfo.format===Ka.ALAW)return"alaw";if(this.audioInfo.format===Ka.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===Ka.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}j(!1)}async getMimeType(){return"audio/wav"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}const Ga=2048;class Qa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.format}async getDecoderConfig(){const e=this.demuxer.getCodec();return e?(j(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null}getNumberOfChannels(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return j(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return xe}getDisposition(){return{...ht}}async getPacketAtIndex(e,t){j(e>=0),j(this.demuxer.audioInfo);const i=e*Ga*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(Ga*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(Xe(e)&&(e=await e),!e)return null}let a;if(t.metadataOnly)a=rr;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);Xe(e)&&(e=await e),j(e),a=rc(e,r)}const s=e*Ga/this.demuxer.audioInfo.sampleRate,n=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new ar(a,"key",s,n,e,r)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getPacket(e,t){j(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/Ga,(this.demuxer.dataSize-1)/(Ga*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=await this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;j(null===this.demuxer.reader.fileSize);let a=await this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;a;){const e=await this.getNextPacket(a,t);if(!e)break;a=e}return a}getNextPacket(e,t){j(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/Ga);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Ya=e=>{const t=e.filePos,i=rc(e,9),r=new dt(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const a=r.readBits(1),s=r.readBits(2)+1,n=r.readBits(4);if(15===n)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const c=r.readBits(13);r.skipBits(11);const l=r.readBits(2)+1;if(1!==l)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===a?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:n,channelConfiguration:o,frameLength:c,numberOfAacFrames:l,crcCheck:u,startPos:t}},Ja=1024;class Za extends ir{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new ue,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();j(this.firstFrameHeader),this.trackBackings=[new es(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,xc);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=_c(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=Ya(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=ft[t.samplingFrequencyIndex];j(void 0!==i);const r=Ja/i,a={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(a),this.nextTimestampInSamples+=Ja,this.lastLoadedPos=t.startPos+t.frameLength}async getMimeType(){return"audio/aac"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,xc);if(Xe(t)&&(t=await t),!t)break;const i=_c(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(Xe(r)&&(r=await r),!r)break;Rc(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}}}class es{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/Ja}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return xe}getCodec(){return"aac"}getInternalCodecId(){return j(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){j(this.demuxer.firstFrameHeader);const e=mt[this.demuxer.firstFrameHeader.channelConfiguration];return j(void 0!==e),e}getSampleRate(){j(this.demuxer.firstFrameHeader);const e=ft[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return j(void 0!==e),e}getDisposition(){return{...ht}}async getDecoderConfig(){return j(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}}async getPacketAtIndex(e,t){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=rr;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Xe(e)&&(e=await e),!e)return null;r=rc(e,i.dataSize)}return new ar(r,"key",i.timestamp,i.duration,e,i.dataSize)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=me(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=pe(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);await this.demuxer.advanceReader()}}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}class ts extends ir{constructor(e){super(e),this.loadedSamples=[],this.metadataPromise=null,this.trackBacking=null,this.metadataTags={},this.audioInfo=null,this.lastLoadedPos=null,this.blockingBit=null,this.readingMutex=new ue,this.lastSampleLoaded=!1,this.reader=e._reader}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}async getTrackBackings(){return await this.readMetadata(),j(this.trackBacking),[this.trackBacking]}async getMimeType(){return"audio/flac"}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{var e;let t=0;for(;;){let e=this.reader.requestSlice(t,xc);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const i=_c(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);Xe(r)&&(r=await r),j(r),Rc(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||t<this.reader.fileSize;){let i=this.reader.requestSlice(t,4);if(Xe(i)&&(i=await i),t+=4,null===i)throw new Error(`Metadata block at position ${t} is too small! Corrupted file.`);j(i);const r=ac(i),a=oc(i),s=0!==(128&r);switch(127&r){case oi.STREAMINFO:{let e=this.reader.requestSlice(t,a);if(Xe(e)&&(e=await e),j(e),null===e)throw new Error(`StreamInfo block at position ${t} is too small! Corrupted file.`);const i=rc(e,34),r=new dt(i),s=r.readBits(16),n=r.readBits(16),o=r.readBits(24),c=r.readBits(24),l=r.readBits(20),u=r.readBits(3)+1;r.readBits(5);const h=r.readBits(36);r.skipBits(128);const d=new Uint8Array(42);d.set(new Uint8Array([102,76,97,67]),0),d.set(new Uint8Array([128,0,0,34]),4),d.set(i,8),this.audioInfo={numberOfChannels:u,sampleRate:l,totalSamples:h,minimumBlockSize:s,maximumBlockSize:n,minimumFrameSize:o,maximumFrameSize:c,description:d},this.trackBacking=new is(this);break}case oi.VORBIS_COMMENT:{let e=this.reader.requestSlice(t,a);Xe(e)&&(e=await e),j(e),li(rc(e,a),this.metadataTags);break}case oi.PICTURE:{let i=this.reader.requestSlice(t,a);Xe(i)&&(i=await i),j(i);const r=uc(i),s=uc(i),n=Z.decode(rc(i,s)),o=uc(i),c=Z.decode(rc(i,o));i.skip(16);const l=uc(i),u=rc(i,l);(e=this.metadataTags).images??(e.images=[]),this.metadataTags.images.push({data:u,mimeType:n,kind:3===r?"coverFront":4===r?"coverBack":"unknown",description:c});break}}if(t+=a,s){this.lastLoadedPos=t;break}}if(!this.audioInfo)throw new Error("Missing STREAMINFO metadata block! Corrupted FLAC file.")})())}async readNextFlacFrame({startPos:e,isFirstPacket:t}){j(this.audioInfo);const i=this.audioInfo.maximumBlockSize*this.audioInfo.numberOfChannels*4+16+2,r=this.audioInfo.minimumFrameSize||10,a=(this.audioInfo.maximumFrameSize||i)+16,s=await this.reader.requestSliceRange(e,16,a);if(!s)return null;const n=this.readFlacFrameHeader({slice:s,isFirstPacket:t});if(!n)return null;for(s.filePos=e+r;;){if(s.filePos>s.end-6)return{num:n.num,blockSize:n.blockSize,sampleRate:n.sampleRate,size:s.end-e,isLastFrame:!0};if(255===ac(s)){const t=s.filePos;if(ac(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-n.num!==1){s.filePos=t;continue}}else if(r.num-n.num!==n.blockSize){s.filePos=t;continue}return{num:n.num,blockSize:n.blockSize,sampleRate:n.sampleRate,size:i,isLastFrame:!1}}}}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=rc(e,4),a=new dt(r);if(32764!==a.readBits(15))return null;if(null===this.blockingBit){j(t);const e=a.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){j(!t);if(1!==a.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");j(!t);if(0!==a.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*2**e:6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?2**e:null)(a.readBits(4));if(!s)return null;j(this.audioInfo);const n=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(a.readBits(4),this.audioInfo.sampleRate);if(!n)return null;a.readBits(4),a.readBits(3);if(0!==a.readBits(1))return null;const o=(e=>{let t=0;const i=new dt(rc(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],a=t-1,s=new dt(rc(e,a)),n=8-t-1;for(let o=0;o<n;o++)r.unshift(i.readBits(1));for(let o=0;o<a;o++)for(let e=0;e<8;e++){const t=s.readBits(1);e<2||r.unshift(t)}return r.reduce((e,t,i)=>e|t<<i,0)})(e),c=((e,t)=>"uncommon-u16"===t?nc(e)+1:"uncommon-u8"===t?ac(e)+1:"number"===typeof t?t:(Te(t),void j(!1)))(e,s),l=((e,t)=>"uncommon-u16"===t?nc(e):"uncommon-u16-10"===t?10*nc(e):"uncommon-u8"===t?ac(e):"number"===typeof t?t:null)(e,n);if(null===l)return null;if(l!==this.audioInfo.sampleRate)return null;const u=e.filePos-i,h=ac(e);e.skip(-u),e.skip(-1);const d=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(rc(e,u));return h!==d?null:{num:o,blockSize:c,sampleRate:l}}async advanceReader(){await this.readMetadata(),j(null!==this.lastLoadedPos),j(this.audioInfo);const e=this.lastLoadedPos,t=await this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)}}class is{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return xe}getTimeResolution(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return j(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getDisposition(){return{...ht}}async getDecoderConfig(){return j(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}}async getPacket(e,t){if(j(this.demuxer.audioInfo),e<0)return null;const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=pe(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){await this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],a=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(a+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);await this.demuxer.advanceReader()}}finally{i()}}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}async getPacketAtIndex(e,t){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=rr;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(Xe(e)&&(e=await e),!e)return null;r=rc(e,i.byteSize)}j(this.demuxer.audioInfo);const a=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new ar(r,"key",a,s,e,i.byteSize)}async getFirstPacket(e){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)}}const rs=9e4,as=2**33,ss=188,ns="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",os=new Set([133,134,162]),cs=new Set;class ls extends ir{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=this.reader.requestSlice(0,205);Xe(e)&&(e=await e),j(e);const t=rc(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=ss;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,a=!1,s=!1;for(;;){const e=await this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=await this.readSection(i,!0,!s);if(!t)break;const n=3,o=32;let c=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new dt(t.payload),i=e.readAlignedByte();e.skipBits(8*i);c=2===e.readBits(8)}}if(0!==t.pid||a)if(t.pid!==r&&!c||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=hs(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(await this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new gs(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,await r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=Ft(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];j(t);const i=Nt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const a=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;a>0&&s>0&&(a>s?(e.info.squarePixelWidth=Math.round(e.info.width*a/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/a))),e.info.colorSpace={primaries:ie[i.colourPrimaries],transfer:ae[i.transferCharacteristics],matrix:ne[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=Wt(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===St.SPS_NUT).nalUnits[0];j(t);const i=qt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:ie[i.colourPrimaries],transfer:ae[i.transferCharacteristics],matrix:ne[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:zi({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(await r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=tc.tempFromBytes(r.suppliedPacket.data),i=Ya(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=mt[i.channelConfiguration],e.info.sampleRate=ft[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=uc(tc.tempFromBytes(r.suppliedPacket.data)),i=Yi(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=tr(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=hi(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=ui[t.acmod]+t.lfeon,e.info.sampleRate=yt[t.fscod]}else if("eac3"===e.info.codec){const t=mi(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=pi(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=gi(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=Ii(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:qi({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new dt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const a=e.readBits(10),c=e.pos+8*a;let l=!1;for(;e.pos<c;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(5===t&&i>=4){const t=e.readBits(32);l||(l=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=c;8*(r+n)-e.pos>o;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),a=e.pos+8*r;let s=!1,n=!1,o=!1;for(;e.pos<a;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(106===t)s=!0;else if(122===t||204===t)n=!0;else if(123===t)o=!0;else if(5===t&&i>=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let c=null;const u=l&&os.has(t)?130:t;switch(u){case 27:case 36:c={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",c={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:n?c={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?c={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(c={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:cs.has(t)||(ct._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),cs.add(t))}c&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:c,referencePesPackets:[]})}s=!0}else{const e=new dt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+n)-e.pos>o;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");a=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!a)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const n of this.elementaryStreams)n.initialized&&("video"===n.info.type?this.trackBackingEntries.push(new fs(n)):this.trackBackingEntries.push(new ms(n)))})())}async getTrackBackings(){return await this.readMetadata(),this.trackBackingEntries}async getMetadataTags(){return{}}async getMimeType(){await this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(await Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>e?.codec??null))))}async readSection(e,t,i=!1){let r=e,a=e;const s=[];let n,o=0,c=null,l=!0,u=0;for(;;){const e=await this.readPacket(a);if(a+=this.packetStride,!e)break;if(c){if(e.pid!==c.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;c=e}const n=!!(2&e.adaptationFieldControl),h=!!(1&e.adaptationFieldControl);let d=0;if(n&&(d=1+e.body[0],e===c&&d>1&&(u=e.body[1]>>6&1)),h&&(0===d?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(d)),o+=e.body.byteLength-d)),r=a,!t&&o>=64){l=!1;break}if(-1!==me(this.sectionEndPositions,r,e=>e)){l=!1;break}}if(l){const e=pe(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!c)return null;if(1===s.length)n=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);n=new Uint8Array(e);let t=0;for(const i of s)n.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:c.pid,payload:n,randomAccessIndicator:u}}async readPacketHeader(e){let t=this.reader.requestSlice(e,4);if(Xe(t)&&(t=await t),!t)return null;if(71!==ac(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=nc(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:ac(t)>>4&3}}async readPacket(e){let t=this.reader.requestSlice(e,ss);if(Xe(t)&&(t=await t),!t)return null;const i=rc(t,ss);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=as-t?-8589934592:as}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e<t?e+i:e}}const us=(e,t,i)=>{if(t.payload.byteLength<3)return null;const r=new dt(t.payload);if(1!==r.readBits(24))return null;const a=r.readBits(8);if(r.skipBits(16),188===a||190===a||191===a||240===a||241===a||255===a||242===a||248===a)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let n=null;if(2===s||3===s)n=0,r.skipBits(4),n+=r.readBits(3)*(1<<30),r.skipBits(1),n+=32768*r.readBits(15),r.skipBits(1),n+=r.readBits(15),n=e.normalizeTimestamp(n);else if(i)throw new Error(ns);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:n,randomAccessIndicator:t.randomAccessIndicator}},hs=(e,t,i)=>{j(null!==t.endPos);const r=us(e,t,i);if(!r)return null;const a=new dt(t.payload);a.skipBits(32);const s=a.readBits(16);a.skipBits(16);const n=a.readBits(8),o=a.pos+8*n;a.pos=o;const c=o/8;j(Number.isInteger(c));const l=t.payload.subarray(c,s>0?6+s:t.payload.byteLength);return{...r,data:l}};class ds{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,j(r instanceof ds),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return xe}getDisposition(){return{...ht,primary:!1}}getTimeResolution(){return rs}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new ar(i.metadataOnly?rr:e.data,r,e.pts/rs,Math.max(t/rs,0),e.sequenceNumber,e.data.byteLength)}async getFirstPacket(e){const t=this.elementaryStream.firstSection;j(t);const i=hs(this.elementaryStream.demuxer,t,!0);j(i);const r=new gs(this.elementaryStream,i),a=new ks(this,r),s=await a.readNext();if(!s)return null;const n=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(n,a),this.packetSectionStarts.set(n,s.packet.sectionStartPos),n}async getNextPacket(e,t){let i=this.packetBuffers.get(e);if(i){const r=await i.readNext();if(!r)return null;this.packetBuffers.delete(e);const a=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(a,i),this.packetSectionStarts.set(a,r.packet.sectionStartPos),a}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const a=this.elementaryStream.demuxer,s=await a.readSection(r,!0);j(s);const n=hs(a,s,!0);j(n);const o=new gs(this.elementaryStream,n);i=new ks(this,o);const c=e.sequenceNumber;for(;;){const e=await i.readNext();if(!e)return null;if(e.packet.sequenceNumber>c){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}}async getNextKeyPacket(e,t){let i=e;for(;;){if(i=await this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}async doPacketLookup(e,t,i){const r=Ce(e*rs),a=this.elementaryStream.demuxer,{reader:s,seekChunkSize:n}=a,o=this.elementaryStream.pid,c=async(e,t,i)=>{let r=e;for(;r<t;){const e=await a.readPacketHeader(r);if(!e)return null;if(e.pid===o&&1===e.payloadUnitStartIndicator){const e=await a.readSection(r,i);if(!e)return null;const t=us(a,e,!1);if(t&&null!==t.pts)return{pesPacketHeader:t,section:e}}r+=a.packetStride}return null},l=this.elementaryStream.firstSection;j(l);const u=us(a,l,!0);if(j(u),r<u.pts)return null;let h;const d=this.elementaryStream.referencePesPackets,f=pe(d,r,e=>e.pts),m=-1!==f?d[f]:null;if(m&&r-m.pts<45e3)h=m.sectionStartPos;else{let e=0;if(null!==s.fileSize){const t=Math.ceil(s.fileSize/n);if(t>1){let i=0,s=t-1;for(e=i;i<=s;){const t=Math.floor((i+s)/2),o=_e(t*n,a.packetStride)+u.sectionStartPos,l=o+n,h=await c(o,l,!1);h?h.pesPacketHeader.pts<=r?(e=t,i=t+1):s=t-1:s=t-1}}}h=_e(e*n,a.packetStride)+u.sectionStartPos}const p=await c(h,s.fileSize??1/0,!1);let g=p?.pesPacketHeader??null;g||(g=u);const k=this.getReorderSize(),y=async(e,t)=>{const s=await a.readSection(e,!0);j(s);const n=hs(a,s,!0);j(n);const o=new gs(this.elementaryStream,n),c=new ks(this,o);for(;;){if((X(c.presentationOrderPackets)?.pts??-1/0)>=r)break;if(!(await c.readNextPacket()))break}const l=we(c.presentationOrderPackets,t);if(-1===l)return null;const u=c.presentationOrderPackets[l],h=0===l?0:u.pts-c.presentationOrderPackets[l-1].pts;for(;c.decodeOrderPackets[0]!==u;)c.decodeOrderPackets.shift();c.lastDuration=h;const d=await c.readNext();j(d);const f=this.createEncodedPacket(d.packet,d.duration,i);return this.packetBuffers.set(f,c),this.packetSectionStarts.set(f,d.packet.sectionStartPos),f};if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=g.sectionStartPos+a.packetStride;for(;;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===o&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,!1);if(t){const e=us(a,t,!1);if(e&&null!==e.pts){if(e.pts>r)break e;g=e,ps(this.elementaryStream,g);break}}}e+=a.packetStride}}e:for(let e=0;e<k+1;e++){let e=g.sectionStartPos-a.packetStride;for(;e>=a.packetOffset;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===o&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,!1);if(t){const e=us(a,t,!1);if(e&&null!==e.pts){g=e;break}}}e-=a.packetStride}}return y(g.sectionStartPos,e=>e.pts<=r)}{let e=h,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let h=null;const d=e<=u.sectionStartPos;let f,m=null;if(d)f=u,m=l;else{const t=await c(e,s.fileSize??1/0,i);f=t?.pesPacketHeader??null,m=t?.section??null}let p=!1,g=0;e:for(;f&&!(null!==t&&f.sectionStartPos>=t);){if(f.pts<=r){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===f.randomAccessIndicator;else{j(m);const t=hs(a,m,!0);j(t);const i=new gs(this.elementaryStream,t);await i.markNextPacket(),e=1===i.suppliedPacket?.randomAccessIndicator}e&&(h=f)}if(f.pts>r&&(p=!0),p&&(g++,g>k))break;let e=f.sectionStartPos+a.packetStride;for(;;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===o&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,i);if(t){const e=us(a,t,!1);if(e&&null!==e.pts){f=e,m=t,ps(this.elementaryStream,f);break}}}e+=a.packetStride}}if(h){let e=h;if(0===g)e:for(let r=0;r<k;r++){let t=e.sectionStartPos-a.packetStride;for(;t>=a.packetOffset;){const r=await a.readPacketHeader(t);if(!r)break e;if(r.pid===o&&1===r.payloadUnitStartIndicator){const r=await a.readSection(t,i);if(r){const t=us(a,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=a.packetStride}}const t=await y(e.sectionStartPos,e=>e.pts<=r&&1===e.randomAccessIndicator);return j(t),t}if(d)return null;t=e,e=Math.max(_e(e-u.sectionStartPos-n,a.packetStride)+u.sectionStartPos,u.sectionStartPos)}}}}class fs extends ds{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}async getColorSpace(){return this.elementaryStream.info.colorSpace}async canBeTransparent(){return!1}async getDecoderConfig(){return j(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class ms extends ds{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}async getDecoderConfig(){return j(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const ps=(e,t)=>{const i=e.referencePesPackets,r=pe(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const a=i[r];if(t.pts<=a.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-a.sectionStartPos<s)return!1;if(r<i.length-1){const e=i[r+1];if(e.pts<t.pts)return!1;if(e.sectionStartPos-t.sectionStartPos<s)return!1}}return i.splice(r+1,0,t),!0};class gs{constructor(e,t){this.currentPos=0,this.pesPackets=[],this.currentPesPacketIndex=0,this.currentPesPacketPos=0,this.endPos=0,this.lastSuppliedPesPacket=null,this.nextPts=null,this.suppliedPacket=null,this.elementaryStream=e,this.pid=e.pid,this.demuxer=e.demuxer,this.startingPesPacket=t}ensureBuffered(e){const t=this.endPos-this.currentPos;return t>=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return j(e),e}async bufferData(e){const t=this.endPos+e;for(;this.endPos<t;){let e;if(0===this.pesPackets.length)e=this.startingPesPacket;else{let t=X(this.pesPackets).sectionEndPos;for(j(null!==t);;){const i=await this.demuxer.readPacketHeader(t);if(!i)return;if(i.pid===this.pid){const i=await this.demuxer.readSection(t,!0);if(!i)return;const r=hs(this.demuxer,i,!1);if(r){e=r;break}}t+=this.demuxer.packetStride}}this.pesPackets.push(e),this.endPos+=e.data.byteLength}}readBytes(e){const t=this.getCurrentPesPacket(),i=this.currentPos-this.currentPesPacketPos,r=i+e;if(this.currentPos+=e,r<=t.data.byteLength)return t.data.subarray(i,r);const a=new Uint8Array(e);a.set(t.data.subarray(i));let s=t.data.byteLength-i;for(;;){this.advanceCurrentPacket();const t=this.getCurrentPesPacket(),i=e-s;if(i<=t.data.byteLength){a.set(t.data.subarray(0,i),s);break}a.set(t.data,s),s+=t.data.byteLength}return a}readU8(){let e=this.getCurrentPesPacket();const t=this.currentPos-this.currentPesPacketPos;return this.currentPos++,t<e.data.byteLength?e.data[t]:(this.advanceCurrentPacket(),e=this.getCurrentPesPacket(),e.data[0])}seekTo(e){if(e!==this.currentPos){if(e<this.currentPos)for(;e<this.currentPesPacketPos;){this.currentPesPacketIndex--;const e=this.getCurrentPesPacket();this.currentPesPacketPos-=e.data.byteLength}else for(;;){const t=this.getCurrentPesPacket();if(e<this.currentPesPacketPos+t.data.byteLength)break;this.currentPesPacketPos+=t.data.byteLength,this.currentPesPacketIndex++}this.currentPos=e}}skip(e){this.seekTo(this.currentPos+e)}advanceCurrentPacket(){this.currentPesPacketPos+=this.getCurrentPesPacket().data.byteLength,this.currentPesPacketIndex++}async markNextPacket(){j(!this.suppliedPacket);const e=this.elementaryStream;if("video"===e.info.type){const t=e.info.codec,i=1024;if("avc"!==t&&"hevc"!==t)throw new Error("Unhandled.");const r="avc"===t?1:2;let a=null,s=!1,n=0;for(;;){let e=this.ensureBuffered(i);if(Xe(e)&&(e=await e),0===e)break;const o=this.currentPos,c=this.readBytes(e),l=c.byteLength;let u=0;for(;u<l;){const e=c.indexOf(0,u);if(-1===e||e>=l)break;u=e;const i=o+u;if(u+3>=l){this.seekTo(i);break}const h=c[u+1],d=c[u+2],f=c[u+3];let m=0;if(0===h&&0===d&&1===f?m=4:0===h&&1===d&&(m=3),0===m){u++;continue}const p=i;a??(a=p);const g=u+m,k=g+r,y=6;if(k+("avc"===t?y:1)>l){this.seekTo(i);break}const b=c[g];let w,T,S;if("avc"===t)w=Ct(b),T=w===wt.NON_IDR_SLICE||w===wt.SLICE_DPA||w===wt.IDR,S=w===wt.SEI||w===wt.SPS||w===wt.PPS||w===wt.AUD;else{w=Ut(b);if(((1&b)<<5|c[g+1]>>3)>0){u+=m;continue}T=w<=St.RASL_R||w>=St.BLA_W_LP&&w<=21,S=w>=St.VPS_NUT&&w<=37||w===St.PREFIX_SEI_NUT||w>=41&&w<=44||w>=48&&w<=55}let v=!1;if(T){let e;if("avc"===t){const t=c.subarray(k,k+y),i=$(new dt(t));e=!s||i<=n,n=i}else e=c[k]>>7===1;e&&(s?v=!0:s=!0)}else S&&s&&(v=!0);if(v){const e=p-a;return this.seekTo(a),this.supplyPacket(e,0)}u+=m}if(e<i)break}if(null!==a&&this.endPos>a){const e=this.endPos-a;return this.seekTo(a),this.supplyPacket(e,0)}}else{const t=e.info.codec,i=128;for(;;){let r=this.ensureBuffered(i);Xe(r)&&(r=await r);const a=this.currentPos;for(;this.currentPos-a<r;){const i=this.readU8();if("aac"===t){if(255!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(9);if(Xe(r)&&(r=await r),r<9)return;const a=this.readBytes(9),s=Ya(tc.tempFromBytes(a));if(s){this.seekTo(t);let i=this.ensureBuffered(s.frameLength);return Xe(i)&&(i=await i),this.supplyPacket(i,Math.round(9216e4/e.info.sampleRate))}this.seekTo(t+1)}else{if("mp3"!==t){if("ac3"===t){if(11!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(5);if(Xe(r)&&(r=await r),r<5)return;const a=this.readBytes(5);if(11!==a[0]||119!==a[1]){this.seekTo(t+1);continue}const s=a[4]>>6,n=63&a[4];if(3===s||n>37){this.seekTo(t+1);continue}const o=di[3*n+s];j(void 0!==o),this.seekTo(t),r=this.ensureBuffered(o),Xe(r)&&(r=await r);const c=Math.round(13824e4/e.info.sampleRate);return this.supplyPacket(r,c)}if("eac3"===t){if(11!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(5);if(Xe(r)&&(r=await r),r<5)return;const a=this.readBytes(5);if(11!==a[0]||119!==a[1]){this.seekTo(t+1);continue}const s=2*(((7&a[2])<<8|a[3])+1),n=3===a[4]>>6?3:a[4]>>4&3,o=fi[n];this.seekTo(t),r=this.ensureBuffered(s),Xe(r)&&(r=await r);const c=256*o,l=Math.round(c*rs/e.info.sampleRate);return this.supplyPacket(r,l)}if("dts"===t){if(127!==i&&100!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(18);if(Xe(r)&&(r=await r),r<18)return;const a=this.readBytes(18),s=Ci(a);let n=s?null:Bi(a);if(!s&&!n){this.seekTo(t+1);continue}if(n&&!n.asset){this.seekTo(t);const e=Math.min(n.frameSize,4096);let i=this.ensureBuffered(e);Xe(i)&&(i=await i),n=Bi(this.readBytes(i))??n}let o=s?s.frameSize:n.frameSize;if(s){let e=4*Math.ceil(s.frameSize/4);for(;;){this.seekTo(t);const i=e+10;let r=this.ensureBuffered(i);if(Xe(r)&&(r=await r),r<i)break;this.seekTo(t+e);const a=Bi(this.readBytes(10));if(!a)break;e+=a.frameSize,o=e}}const c=s?.sampleCount??n.asset?.sampleCount;if(void 0===c){this.seekTo(t+1);continue}this.seekTo(t),r=this.ensureBuffered(o),Xe(r)&&(r=await r);const l=Math.round(c*rs/e.info.sampleRate);return this.supplyPacket(r,l)}throw new Error("Unhandled.")}{if(255!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(4);if(Xe(r)&&(r=await r),r<4)return;const a=this.readBytes(4),s=J(a).getUint32(0),n=Yi(s,null);if(n.header){this.seekTo(t);let i=this.ensureBuffered(n.header.totalSize);Xe(i)&&(i=await i);const r=n.header.audioSamplesInFrame*rs/e.info.sampleRate;return this.supplyPacket(i,Math.round(r))}this.seekTo(t+1)}}}if(r<i)break}}}supplyPacket(e,t){const i=this.getCurrentPesPacket();let r;if(this.lastSuppliedPesPacket===i)j(null!==this.nextPts),r=this.nextPts;else{if(null===i.pts)throw new Error(ns);r=i.pts,ps(this.elementaryStream,i)}this.lastSuppliedPesPacket=i,this.nextPts=r+t;const a=i.sectionStartPos,s=a+(this.currentPos-this.currentPesPacketPos),n=this.readBytes(e);let o=i.randomAccessIndicator;if(0===o&&!this.elementaryStream.canBeTrustedWithKeyPackets)if("audio"===this.elementaryStream.info.type)o=1;else if(this.elementaryStream.info.decoderConfig){const e="key"===ni(this.elementaryStream.info.codec,this.elementaryStream.info.decoderConfig,n);o=Number(e)}this.suppliedPacket={pts:r,data:n,sequenceNumber:s,sectionStartPos:a,randomAccessIndicator:o},this.pesPackets.splice(0,this.currentPesPacketIndex),this.currentPesPacketIndex=0}}class ks{constructor(e,t){this.decodeOrderPackets=[],this.reorderBuffer=[],this.presentationOrderPackets=[],this.reachedEnd=!1,this.lastDuration=0,this.backing=e,this.context=t,this.reorderSize=e.getReorderSize(),j(this.reorderSize>=0)}async readNext(){if(0===this.decodeOrderPackets.length){if(!(await this.readNextPacket()))return null}await this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(j(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}}async readNextPacket(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||await this.context.markNextPacket(),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)}async ensureCurrentPacketHasNext(){const e=this.decodeOrderPackets[0];for(j(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(await this.readNextPacket()))break}}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;i<this.reorderBuffer.length;i++)this.reorderBuffer[i].pts<this.reorderBuffer[e].pts&&(e=i);const t=this.reorderBuffer[e];this.presentationOrderPackets.push(t),this.reorderBuffer.splice(e,1)}}flushReorderBuffer(){this.reorderBuffer.sort((e,t)=>e.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const ys="application/vnd.apple.mpegurl",bs="#EXT-X-STREAM-INF:",ws="#EXT-X-I-FRAME-STREAM-INF:",Ts="#EXT-X-MEDIA:",Ss="#EXTINF:",vs="#EXT-X-MAP:",Ps="#EXT-X-KEY:",Is="#EXT-X-MEDIA-SEQUENCE:",xs="#EXT-X-BYTERANGE:",Cs="#EXT-X-PROGRAM-DATE-TIME:",Bs="#EXT-X-TARGETDURATION:",Es="#EXT-X-PLAYLIST-TYPE:",_s=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class Rs{constructor(e){this._attributes={};let t="",i="",r=!1,a=!1;for(let s=0;s<e.length;s++){const n=e[s];'"'===n?a=!a:"="!==n||r||a?","!==n||a?r?i+=n:t+=n:(t&&(this._attributes[t.trim().toLowerCase()]=i),t="",i="",r=!1):r=!0}t&&(this._attributes[t.trim().toLowerCase()]=i)}get(e){return this._attributes[e.toLowerCase()]??null}getAsNumber(e){const t=this.get(e);if(null===t)return null;const i=Number(t);return Number.isFinite(i)?i:null}merge(e){Object.assign(this._attributes,e._attributes)}}class Fs{constructor(e,t,i){this.nextInputCacheAge=0,this.inputCache=[],this.trackBackingsPromise=null,this.firstSegment=null,this.firstSegmentFirstTimestamps=new WeakMap,this.firstTimestampCache=new WeakMap,this.input=e,this.path=t,this.trackDeclarations=i}async getDurationFromMetadata(e){const t=await this.getSegmentAt(1/0,{skipLiveWait:e.skipLiveWait});return t?t.timestamp+t.duration:null}async getUnixTimeForTimestamp(e){let t=await this.getSegmentAt(e,{});if(t??(t=await this.getFirstSegment({})),!t||null===t.unixEpochTimestamp)return null;const i=e-t.timestamp;return t.unixEpochTimestamp+i}async getTrackBackings(){return this.trackBackingsPromise??(this.trackBackingsPromise=(async()=>{const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=et(e,e=>"video"===e.getType())+1;e.push(new Ms(this,t,i))}else if("audio"===t.type){const i=et(e,e=>"audio"===e.getType())+1;e.push(new Ds(this,t,i))}}else{if(this.firstSegment=await this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=await t.getTracks();for(const r of i)if("video"===r.type){const t=et(e,e=>"video"===e.getType())+1;e.push(new Ms(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=et(e,e=>"audio"===e.getType())+1;e.push(new Ds(this,{id:e.length+1,type:"audio"},t))}}return e})())}async getFirstTimestampForInput(e){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=await e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i}async getMediaOffset(e,t){const i=e.firstSegment??e;let r;if(this.firstSegmentFirstTimestamps.has(i))r=this.firstSegmentFirstTimestamps.get(i);else{const e=this.getInputForSegment(i);r=await this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(i,r)}if(i===e)return i.timestamp-r;const a=await this.getFirstTimestampForInput(t),s=e.timestamp-i.timestamp,n=a-r-s;return Math.abs(n)<=Math.min(.25,s)?i.timestamp-r:e.timestamp-a}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class As{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{var e;if((e=this.segmentedInput).firstSegment??(e.firstSegment=await this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let t=this.segmentedInput.firstSegment,i=null;for(;t;){const e=this.segmentedInput.getInputForSegment(t);if(i=(await e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number)??null,i)break;t=await this.segmentedInput.getNextSegment(t,{})}if(!i)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=i,this.firstSegment=t})())}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}getHasOnlyKeyPackets(){return this.delegate(()=>this.firstInputTrack._backing.getHasOnlyKeyPackets?.()??null)}getPairingMask(){return 1n}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}async isRelativeToUnixEpoch(){return await this.hydrate(),j(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}async createAdjustedPacket(e,t,i){j(e.sequenceNumber>=0),j(this.segmentedInput.firstSegment);const r=await this.segmentedInput.getMediaOffset(t,i.input),a=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:Ee(e.timestamp+r,await i.getTimeResolution()),sequenceNumber:Math.floor(1e8*a)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s}async getFirstPacket(e){await this.hydrate(),j(this.firstInputTrack),j(this.firstSegment);let t=this.firstInputTrack,i=this.firstSegment;for(;;){if(t){const r=await t._backing.getFirstPacket(e);if(r)return this.createAdjustedPacket(r,i,t)}if(i=await this.segmentedInput.getNextSegment(i,{skipLiveWait:e.skipLiveWait}),!i)break;const r=this.segmentedInput.getInputForSegment(i);t=(await r.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number)??null}return null}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}async _getNextInternal(e,t,i){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const a=i?await r.track._backing.getNextKeyPacket(r.sourcePacket,t):await r.track._backing.getNextPacket(r.sourcePacket,t);if(a)return this.createAdjustedPacket(a,r.segment,r.track);let s=r.segment;for(;;){const e=await this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),a=(await i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!a){s=e;continue}const n=await a._backing.getFirstPacket(t);return n?this.createAdjustedPacket(n,e,a):null}}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}async _getPacketInternal(e,t,i){let r=await this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(await this.hydrate();r;){const a=this.segmentedInput.getInputForSegment(r),s=(await a.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const n=e-await this.segmentedInput.getMediaOffset(r,a),o=i?await s._backing.getKeyPacket(n,t):await s._backing.getPacket(n,t);if(o)return this.createAdjustedPacket(o,r,s);r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null}}class Ms extends As{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}async getColorSpace(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())}async canBeTransparent(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}class Ds extends As{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}Ye();const Ns=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class Os extends st{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}async getSizeOrNull(){if(this._disposed)throw new Zo;return this._sizePromise??(this._sizePromise=(async()=>{let e=this._getFileSize();return void 0!==e||(await this._read(0,1,0,Ns),e=this._getFileSize(),j(void 0!==e)),e})())}async getSize(){if(this._disposed)throw new Zo;const e=await this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new Js(this,e,t)}_dispatchRead(e,t){this.onread?.(e,t),this._emit("read",{start:e,end:t})}ref(){return new Ls(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class Ls{constructor(e){if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),e._refFinalizationRegistry?.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const e=this.source;j(e._refCount>0),e._decrementRefCount(),e._refFinalizationRegistry?.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class zs extends Os{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof Os||e instanceof Ls))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof Os?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return Xe(t)?t.then(i):i(t)}}const Us=(e,t)=>e.path===t.path;class qs extends zs{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof Os?e.ref():e;return this._root=t,this._rootRequest=null,t};Xe(e)?this._rootRequest=e.then(t):(t(e),j(this._root))}if(this._rootRequest)return this._rootRequest.then(a=>a.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const Ws="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class Hs extends Os{constructor(e,t={}){if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!Je(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new Ys({maxCacheSize:t.maxCacheSize??8388608,maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),Ws?.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:Qs.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}async _runWorker(e){j(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!Ue()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),Ws?.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos<e.targetPos&&!e.aborted;)if(t){const{done:i,value:r}=await t.read();if(i)throw this._orchestrator.onWorkerFinished(e),new Error("Blob reader stopped unexpectedly before all requested data was read.");if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+r.length),this._orchestrator.supplyWorkerData(e,r)}else{const t=await this._blob.slice(e.currentPos,e.targetPos).arrayBuffer();if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+t.byteLength),this._orchestrator.supplyWorkerData(e,new Uint8Array(t))}this._orchestrator.signalWorkerStoppedRunning(e),e.aborted&&await(t?.cancel())}_dispose(){this._orchestrator.dispose()}}const Vs=(e,t,i)=>{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch{}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return ct._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(2**(e-2),16)},js=new Set;class Ks extends zs{constructor(e,t={}){if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!Je(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new Ks(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=t.getRetryDelay??Vs,this._requestInit={...t.requestInit};let i=null;if(t.requestInit?.headers){const e={...Ne(t.requestInit.headers)},r=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==r&&(i=e[r],delete e[r],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){i??(i=t);const r=new Request(e);r.headers.delete("Range"),this._url=r}}if(null!==i){const e=$s(i);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new Ys({maxCacheSize:t.maxCacheSize??67108864,maxWorkerCount:t.parallelism??2,runWorker:this._runWorker.bind(this),prefetchProfile:Qs.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const e=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===e?null!==this._length?this._length:null:Ie(e-this._offset,0,this._length??1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const a=this._offset,s=this._sequentialBacking?this._sequentialBacking._read(a+e,a+t):this._orchestrator.read(a+e,a+t,Math.max(a+i,a),a+Math.min(r,this._length??1/0)),n=e=>e?(e.offset-=this._offset,e):null;return Xe(s)?s.then(n):n(s)}async _runWorker(e){for(;;){const i=new AbortController,r=await Oe(this._options.fetchFn??fetch,this._url,De(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:i.signal}),this._getRetryDelay,()=>this._disposed);if(!r.ok)throw new Error(`Error fetching ${String(this._url)}: ${r.status} ${r.statusText}`);r.redirected&&(this.rootPath=r.url);e:if(null===this._orchestrator.fileSize&&(206===r.status||"basic"===r.type&&!r.headers.has("Content-Encoding"))){const t=r.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=r.headers.get("Content-Length");if(i){const t=206===r.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!r.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==r.status){if(this._sequentialBacking)return void r.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||js.has(e.origin)||(ct._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),js.add(e.origin))}return void this._transitionToSequentialMode(r.body)}const a=r.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return i.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let r;try{r=await a.read()}catch(t){if(this._disposed)throw t;const e=this._getRetryDelay(1,t,this._url);if(null!==e){ct._error("Error while reading response stream. Attempting to resume.",t),await at(1e3*e);break}throw t}if(e.aborted)continue;const{done:s,value:n}=r;if(s){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+n.length),this._orchestrator.supplyWorkerData(e,n)}}}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const a=new ReadableStream({pull:async e=>{for(;;){let s;try{s=await t.read()}catch(a){if(this._disposed)throw a;const e=this._getRetryDelay(1,a,this._url);if(null===e)throw a;ct._error("Error while reading response stream. Attempting to resume.",a),await at(1e3*e);const s=await Oe(this._options.fetchFn??fetch,this._url,De(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!s.ok)throw new Error(`Error fetching ${String(this._url)}: ${s.status} ${s.statusText}`);if(!s.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=s.body.getReader(),r=206===s.status?0:i;continue}if(s.done)return void e.close();let n=s.value;if(r>0){const e=Math.min(r,n.length);r-=e,n=n.subarray(e)}if(0!==n.length)return i+=n.length,void e.enqueue(n)}},cancel:()=>t.cancel()}),s=new Gs(a,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const n=new Set;for(const o of this._orchestrator.workers){for(const e of o.pendingSlices)n.add(e);o.aborted=!0,o.pendingSlices.length=0}for(const o of this._orchestrator.queuedReads)for(const e of o.pendingSlices)n.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const o of n){const e=s._read(o.start,o.start+o.bytes.length);Xe(e)?e.then(e=>{e?(j(e.offset===o.start),o.resolve(e.bytes)):o.resolve(null)},e=>o.reject(e)):(j(null===e),o.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const Xs=/^bytes=(\d+)-(\d*)$/,$s=e=>{const t=Xs.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&r<i?null:{offset:i,length:null!==r?r-i+1:null}};class Gs extends Os{constructor(e,t={}){if(!(e instanceof ReadableStream))throw new TypeError("stream must be a ReadableStream.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!Je(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");super(),this._reader=null,this._cache=[],this._pendingSlices=[],this._currentIndex=0,this._targetIndex=0,this._maxRequestedIndex=0,this._endIndex=null,this._pulling=!1,this._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. With ReadableStreamSource, you must access the data more sequentially or increase the size of its cache.",this._stream=e,this._maxCacheSize=t.maxCacheSize??33554432,this._handleUnhandledError=t.handleUnhandledError}_getFileSize(){return this._endIndex}_read(e,t){if(null!==this._endIndex&&t>this._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=pe(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let a=e;const s=new Uint8Array(t-e);if(-1!==i)for(let l=i;l<this._cache.length;l++){const i=this._cache[l];if(i.start>=t)break;const r=Math.max(e,i.start);r>a&&this._throwDueToCacheMiss();const n=Math.min(t,i.end);r<n&&(s.set(i.bytes.subarray(r-i.start,n-i.start),r-e),a=n)}if(a===t)return{bytes:s,view:J(s),offset:e};this._currentIndex>a&&this._throwDueToCacheMiss();const{promise:n,resolve:o,reject:c}=ke();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:c}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),n}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}async _pull(){for(this._reader??(this._reader=this._stream.getReader());this._currentIndex<this._targetIndex&&!this._disposed;){const{done:e,value:t}=await this._reader.read();if(e){for(const e of this._pendingSlices)e.resolve(null);this._pendingSlices.length=0,this._endIndex=this._currentIndex;break}const i=this._currentIndex,r=this._currentIndex+t.byteLength;this._dispatchRead(i,r);for(let a=0;a<this._pendingSlices.length;a++){const e=this._pendingSlices[a],s=Math.max(i,e.start),n=Math.min(r,e.end);s<n&&(e.bytes.set(t.subarray(s-i,n-i),s-e.start),n===e.end&&(e.resolve({bytes:e.bytes,view:J(e.bytes),offset:e.start}),this._pendingSlices.splice(a,1),a--))}for(this._cache.push({start:i,end:r,bytes:t,view:J(t),age:0});this._cache.length>0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1}_dispose(){for(const e of this._pendingSlices)e.reject(new Zo);this._pendingSlices.length=0,this._cache.length=0,this._reader?.cancel()}}const Qs={fileSystem:(e,t)=>{const i=65536;return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=65536;e=Math.max(0,Math.floor((e-r)/r)*r);for(const a of i){const i=8388608,r=Math.max((a.startPos+a.targetPos)/2,a.targetPos-i);if(Ge(e,t,r,a.targetPos)){const e=a.targetPos-a.startPos,r=Math.ceil((e+1)/i)*i,s=2**Math.ceil(Math.log2(e+1)),n=Math.min(s,r);t=Math.max(t,a.startPos+n)}}return{start:e,end:t=Math.max(t,e+524288)}}};class Ys{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){j(!this.disposed);const a=this.options.prefetchProfile(e,t,this.workers),s=Math.max(a.start,i),n=Math.min(a.end,this.fileSize??1/0,r);j(s<=e&&t<=n);let o=null;const c=pe(this.cache,e,e=>e.start),l=-1!==c?this.cache[c]:null;l&&l.start<=e&&t<=l.end&&(l.age=this.nextAge++,o={bytes:l.bytes,view:l.view,offset:l.start});const u=pe(this.cache,s,e=>e.start),h=o?null:new Uint8Array(t-e);let d=0,f=s;const m=[];if(-1!==u){for(let i=u;i<this.cache.length;i++){const r=this.cache[i];if(r.start>=n)break;if(r.end<=s)continue;const a=Math.max(s,r.start),o=Math.min(n,r.end);if(j(a<=o),f<a&&m.push({start:f,end:a}),f=o,h){const i=Math.max(e,r.start),a=Math.min(t,r.end);if(i<a){const t=i-e;h.set(r.bytes.subarray(i-r.start,a-r.start),t),t===d&&(d=a-e)}}r.age=this.nextAge++}f<n&&m.push({start:f,end:n})}else m.push({start:s,end:n});if(h&&d>=h.length&&(o={bytes:h,view:J(h),offset:e}),0===m.length)return j(o),o;const{promise:p,resolve:g,reject:k}=ke(),y=[];for(const w of m){const i=Math.max(e,w.start),r=Math.min(t,w.end);i===w.start&&r===w.end?y.push(w):i<r&&y.push({start:i,end:r})}const b=h&&{start:e,bytes:h,holes:y,resolve:g,reject:k};e:for(const w of m){for(const i of this.workers){if(this.checkHoleAgainstWorker(i,w,b?[b]:[])){this.checkQueuedReadsAgainstWorker(i);continue e}}const e=w.end<n||null!==this.fileSize,t=this.createWorker(w.start,w.end,e);if(t)b&&(t.pendingSlices=[b]),this.runWorker(t);else{let t=pe(this.queuedReads,w.start,e=>e.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&w.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,w.end),i.strictTarget&&(i.strictTarget=e),b&&i.pendingSlices.push(b)):(t++,i={hole:{start:w.start,end:w.end},strictTarget:e,pendingSlices:b?[b]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1<this.queuedReads.length;){const e=this.queuedReads[t+1];if(e.hole.start>i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return o?p.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(j(h),o=p.then(t=>t&&{bytes:t,view:J(t),offset:e})),o}checkHoleAgainstWorker(e,t,i){if(Ge(t.start-2**17,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t<i.length;t++){const r=i[t];e.pendingSlices.includes(r)||e.pendingSlices.push(r)}return e.running||this.runWorker(e),!0}return!1}checkQueuedReadsAgainstWorker(e){let t=!1;for(let i=0;i<this.queuedReads.length;i++){const r=this.queuedReads[i];if(this.checkHoleAgainstWorker(e,r.hole,r.pendingSlices))this.queuedReads.splice(i,1),i--,t=!0;else if(t)break}}createWorker(e,t,i){if(this.workers.length>=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i<this.workers.length;i++){const r=this.workers[i];r.running||0!==r.pendingSlices.length||e&&!(r.age<e.age)||(t=i,e=r)}if(!e)return null;j(null!==t),j(0===e.pendingSlices.length),this.workers.splice(t,1),this.options.onIdleWorkerRemoved?.(e)}const r={startPos:e,currentPos:e,targetPos:t,strictTarget:i,running:!1,aborted:this.disposed,pendingSlices:[],age:this.nextAge++};return this.workers.push(r),r}runWorker(e){j(!e.running),j(e.currentPos<e.targetPos),e.running=!0,e.age=this.nextAge++,this.options.runWorker(e).catch(t=>{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;r<this.queuedReads.length;r++){this.queuedReads[r].age<this.queuedReads[e].age&&(e=r)}const t=this.queuedReads[e],i=this.createWorker(t.hole.start,t.hole.end,t.strictTarget);if(!i)return;this.queuedReads.splice(e,1),i.pendingSlices=t.pendingSlices,this.runWorker(i)}})}supplyWorkerData(e,t){j(!e.aborted);const i=e.currentPos,r=i+t.length;this.insertIntoCache({start:i,end:r,bytes:t,view:J(t),age:this.nextAge++}),e.currentPos+=t.length,e.currentPos>e.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;a<e.pendingSlices.length;a++){const s=e.pendingSlices[a],n=Math.max(i,s.start),o=Math.min(r,s.start+s.bytes.length);n<o&&s.bytes.set(t.subarray(n-i,o-i),n-s.start);for(let e=0;e<s.holes.length;e++){const t=s.holes[e];i<=t.start&&r>t.start&&(t.start=r),t.end<=t.start&&(s.holes.splice(e,1),e--)}0===s.holes.length&&(s.resolve(s.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;a<this.workers.length;a++){const t=this.workers[a];e===t||t.running||Ge(i,r,t.currentPos,t.targetPos)&&(this.workers.splice(a,1),this.options.onIdleWorkerRemoved?.(t),a--)}}supplyFileSize(e){j(null===this.fileSize),this.fileSize=e;for(const t of this.workers){t.targetPos=Math.min(t.targetPos,e),t.strictTarget=!0;for(let i=0;i<t.pendingSlices.length;i++){const r=t.pendingSlices[i];for(const a of r.holes)if(a.end>e){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t<this.queuedReads.length;t++){const i=this.queuedReads[t];if(i.hole.start>=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t<i.pendingSlices.length;t++){const r=i.pendingSlices[t];r.start>=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){const t=this.workers.indexOf(e);j(-1!==t),e.running=!1,this.workers.splice(t,1),this.options.onIdleWorkerRemoved?.(e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const i of e.pendingSlices)i.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=pe(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=J(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i<this.cache.length;i++){const t=this.cache[i];if(e.end<=t.start)break;if(e.end>=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=J(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;i<this.cache.length;i++){const r=this.cache[i];r.age<t.age&&(e=i,t=r)}if(this.currentCacheSize-t.bytes.length<=this.options.maxCacheSize)break;this.cache.splice(e,1),this.currentCacheSize-=t.bytes.length}}dispose(){for(const e of this.workers){for(const t of e.pendingSlices)t.reject(new Zo);e.pendingSlices.length=0,e.aborted=!0,e.running||this.options.onIdleWorkerRemoved?.(e)}for(const e of this.queuedReads)for(const t of e.pendingSlices)t.reject(new Zo);this.workers.length=0,this.cache.length=0,this.queuedReads.length=0,this.disposed=!0}}class Js extends Os{constructor(e,t,i){if(super(),this._ref=null,e._disposed)throw new Error("Cannot create a slice of a disposed source.");this._baseSource=e,this._offset=t,this._length=i??null}_getFileSize(){const e=this._baseSource._getFileSize();return void 0===e?null!==this._length?this._length:void 0:null===e?null!==this._length?this._length:null:Ie(e-this._offset,0,this._length??1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const a=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return Xe(a)?a.then(s):s(a)}_dispose(){this._ref?.free()}ref(){return this._ref??(this._ref=this._baseSource.ref()),super.ref()}}var Zs=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},en=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const tn=/^0[xX][0-9a-fA-F]+$/,rn=/^data:.*;base64,/i;class an extends Fs{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){return this.currentUpdateSegmentsPromise??(this.currentUpdateSegmentsPromise=(async()=>{try{const e=this.getRemainingWaitTimeMs();e>0&&await at(e),this.lastSegmentUpdateTime=performance.now(),await this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}})())}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}async updateSegments(){let e=this.nextLines;if(this.nextLines=null,!e){const t={stack:[],error:void 0,hasError:!1};try{const i=Zs(t,await this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),r=new ec(i.source),a=await r.requestEntireFile();j(a),e=wc(a,a.length,{ignore:_s}),i.source instanceof zs&&(this.rootPath=i.source.rootPath)}catch(y){t.error=y,t.hasError=!0}finally{en(t)}}const t=!1!==this.input._formatOptions.hls?.offsetTimestampsByDateTime;let i=!1,r=0,a=null,s=null,n=null,o=0,c=null,l=null,u=null,h=null,d=null,f=null,m=!1,p=X(this.segments)??null;const g=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},k=e=>{o=e,p&&(j(null!==p.sequenceNumber),p.sequenceNumber<e&&(r=p.timestamp+p.duration,c=p.firstSegment,l=p.initSegment,d=p.lastProgramDateTimeSeconds,a=null!==p.unixEpochTimestamp?p.unixEpochTimestamp+p.duration:null,p=null))};for(let b=0;b<e.length;b++){const y=e[b];if(i){if(!y.startsWith("#")){if(!p){if(null===s)throw new Error("Invalid M3U8 file; a segment must be preceded by an #EXTINF tag.");let e=n;if(e&&"AES-128"===e.method&&!e.iv){const t=new Uint8Array(fr),i=J(t);i.setUint32(8,Math.floor(o/2**32)),i.setUint32(12,o),e={...e,iv:t}}const t=Ze(this.rootPath,y),i={timestamp:r,unixEpochTimestamp:a,firstSegment:c,sequenceNumber:o,location:{path:t,offset:h?.offset??0,length:h?.length??null},duration:s,encryption:e,initSegment:l,lastProgramDateTimeSeconds:d};c??(c=i),r+=s,null!==a&&(a+=s),this.segments.push(i)}s=null,null===h?u=null:h=null,k(o+1)}if(y.startsWith(Ss)){if(p){m=!0;continue}m||(null===d&&o>0&&null!==f&&(r=o*f),m=!0);const e=y.slice(8),t=e.indexOf(","),i=-1===t?e:e.slice(0,t),a=Number(i);if(!Number.isFinite(a)||a<0)throw new Error(`Invalid #EXTINF tag duration '${i}'.`);s=a}else if(y.startsWith(vs)){const e=new Rs(y.slice(11)),t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const i=e.get("byterange");let o=null;if(null!==i&&(o=g(i)),o&&null===o.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!p){const e={path:Ze(this.rootPath,t),offset:o?.offset??0,length:o?.length??null};if("AES-128"===n?.method&&!n.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");l={timestamp:r,unixEpochTimestamp:a,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:n,initSegment:null,lastProgramDateTimeSeconds:d}}s=null,null===h?u=null:h=null}else if(y.startsWith(Ps)){const e=new Rs(y.slice(11)),t=e.get("method");if("NONE"===t)n=null;else if("AES-128"===t){const t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=e.get("iv");if(r){if(!tn.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(fr);for(let t=0;t<fr;t++){const r=-32+t;i[t]=parseInt(e.slice(r,r+2),16)}}const a=e.get("keyformat")??"identity";if("identity"!==a)throw new Error("For AES-128 encryption, only the 'identity' KEYFORMAT is currently supported. If you think other formats should be supported, please raise an issue.");n={method:"AES-128",keyUri:Ze(this.rootPath,t),iv:i,keyFormat:a}}else{if("SAMPLE-AES"!==t&&"SAMPLE-AES-CTR"!==t)throw new Error(`Unsupported encryption method '${t}'. If you think this method should be supported, please raise an issue.`);{const i=e.get("uri");if(!i)throw new Error(`Invalid #EXT-X-KEY: ${t} requires a URI attribute.`);if("identity"===(e.get("keyformat")??"identity"))throw new Error("For SAMPLE-AES and SAMPLE-AES-CTR encryption, the 'identity' KEYFORMAT is not supported. If you think this format should be supported, please raise an issue.");let r=null;if(rn.test(i)){const e=i.indexOf(","),t=Qe(i.slice(e+1));if(t.length>=8&&112===t[4]&&115===t[5]&&115===t[6]&&104===t[7]){const e=J(t).getUint32(0);r=sr(t.subarray(8,Math.min(e,t.length)))}}n={method:t,psshBox:r}}}}else if(y.startsWith(Is)){const e=y.slice(22),t=Number(e);if(!Number.isInteger(t)||t<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${e}'.`);k(t)}else if(y.startsWith(xs)){const e=g(y.slice(17));if(null===e.offset){if(null===u)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");e.offset=u}h=e,u=e.offset+e.length}else if(y.startsWith(Cs)){if(p)continue;const e=y.slice(25),i=Date.parse(e);if(!Number.isFinite(i))continue;const s=i/1e3;if(d===s)continue;if(null===d&&this.segments.length>0){const e=X(this.segments),i=s-(e.timestamp+e.duration);for(const r of this.segments)r.unixEpochTimestamp=r.timestamp+i,t&&(r.timestamp=r.unixEpochTimestamp)}d=s,a=s,t&&(r=s)}else if("#EXT-X-DISCONTINUITY"===y)c=null;else if(y.startsWith(Bs)){const e=y.slice(22),t=Number(e);if(!Number.isFinite(t)||t<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${e}'.`);this.refreshInterval=t,f=t}else{if("#EXT-X-ENDLIST"===y){this.streamHasEnded=!0;break}if(y.startsWith(Es)){"vod"===y.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==y)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");i=!0}}if(!i)throw new Error("Invalid M3U8 file; no #EXTM3U header.")}async getFirstSegment(){return 0===this.segments.length&&await this.runUpdateSegments(),this.segments[0]??null}async getSegmentAt(e,t){0===this.segments.length&&await this.runUpdateSegments();let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=pe(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r<this.segments.length-1||this.streamHasEnded||i)return this.segments[r];const a=this.segments[r];if(e<a.timestamp+a.duration)return a;await this.runUpdateSegments(),t.skipLiveWait&&(i=!0)}}async getNextSegment(e,t){const i=this.segments.indexOf(e);j(-1!==i);const r=i+1;let a=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){if(r<this.segments.length)return this.segments[r];if(this.streamHasEnded||a)return null;await this.runUpdateSegments(),t.skipLiveWait&&(a=!0)}}async getPreviousSegment(e){const t=this.segments.indexOf(e);return j(-1!==t),this.segments[t-1]??null}getInputForSegment(e){const t=e,i=this.inputCache.find(e=>e.segment===t);if(i)return i.age=this.nextInputCacheAge++,i.input;let r=null;(t.initSegment||t.firstSegment)&&(r=this.getInputForSegment(t.initSegment??t.firstSegment));const a={...this.input._formatOptions,isobmff:{...this.input._formatOptions.isobmff,resolveKeyId:this.input._formatOptions.isobmff?.resolveKeyId&&(e=>{if(!t.encryption||"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method||!t.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let i=e.psshBoxes;const{psshBox:r}=t.encryption;return null!==r.keyIds&&!r.keyIds.includes(e.keyId)||i.some(e=>nr(e,r))||(i=[...i,r]),this.input._formatOptions.isobmff.resolveKeyId({...e,psshBoxes:i})})}},s=new Yo({source:new qs(t.location.path,async e=>{j(e.isRoot);const i={...e,isRoot:!1};let r;const a=t.location.offset>0||null!==t.location.length;if(t.encryption&&"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method)if("AES-128"===t.encryption.method){const e=t.encryption;j(e.iv);let s=await this.input._getSourceCached(i);if(a){const e=s.source.slice(t.location.offset,t.location.length??void 0).ref();s.free(),s=e}const n=((e,t,i)=>{let r=!1,a=0;const s=new Sr;return new ReadableStream({pull:async n=>{r||(s.init(await t()),r=!0);let o=e.requestSliceRange(a,0,65552);if(Xe(o)&&(o=await o),!o||0===o.length)throw new Error("Invalid ciphertext.");const c=o.length;if(c%16!==0)throw new Error("Invalid ciphertext.");const l=65552===c?c-16:c,u=rc(o,l),h=new Uint8Array(l);for(let e=0;e<l;e+=16)s.in.set(u.subarray(e,e+16)),s.decrypt(),h.set(s.out,e);if(l<c)n.enqueue(h),a+=l;else{const e=h[l-1];if(0===e||e>16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=h.subarray(0,l-e);n.enqueue(t),n.close(),i()}},cancel:()=>{i()}})})(new ec(s.source),async()=>{const t={stack:[],error:void 0,hasError:!1};try{const i=Zs(t,await this.input._getSourceCached({path:e.keyUri,isRoot:!1},Qo),!1),r=new ec(i.source),a=await r.requestSlice(0,fr);if(!a)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:rc(a,fr),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{en(t)}},()=>{s.free()});r=new Gs(n).ref()}else j(!1);else if(r=await this.input._getSourceCached(i),a){const e=r.source.slice(t.location.offset,t.location.length??void 0).ref();r.free(),r=e}return r}),formats:this.input._formats.filter(e=>!(e instanceof Pn)),initInput:r??void 0,formatOptions:a});s._onFormatDetermined=e=>{if(("SAMPLE-AES"===t.encryption?.method||"SAMPLE-AES-CTR"===t.encryption?.method)&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:t,input:s,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=tt(this.inputCache,e=>e.age);j(-1!==e),this.inputCache.splice(e,1)}return s}async getLiveRefreshInterval(){return 0===this.getRemainingWaitTimeMs()&&await this.runUpdateSegments(),this.streamHasEnded?null:this.refreshInterval}}class sn extends ir{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{j(this.input._rootSource instanceof zs);const e=await this.input._reader.requestEntireFile();j(e);const t=wc(e,e.length,{ignore:_s}),{rootPath:i}=this.input._rootSource,r=[],a=[];for(let u=1;u<t.length;u++){const e=t[u];if(e.startsWith(bs)){const a=u,s=t[++u];if(void 0===s)throw new Error("Incorrect M3U8 file; a line must follow the #EXT-X-STREAM-INF tag.");const n=Ze(i,s),o=new Rs(e.slice(18));if(null===o.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");r.push({fullPath:n,attributes:o,lineNumber:a,hasOnlyKeyPackets:!1})}else if(e.startsWith(ws)){const t=new Rs(e.slice(26)),a=t.get("uri");if(null===a)throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a URI attribute.");if(null===t.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");const s=Ze(i,a);r.push({fullPath:s,attributes:t,lineNumber:u,hasOnlyKeyPackets:!0})}else if(e.startsWith(Ts)){const t=new Rs(e.slice(13));if(null===t.get("type"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a TYPE attribute.");if(null===t.get("group-id"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a GROUP-ID attribute.");let r=null;const s=t.get("uri");null!==s&&(r=Ze(i,s)),a.push({fullPath:r,attributes:t,lineNumber:u})}else if("#EXT-X-I-FRAMES-ONLY"===e);else if(e.startsWith(Ss)){const e=new an(this,i,null,t);return this.segmentedInputs=[e],this.hasMasterPlaylist=!1,void(this.trackBackings=await e.getTrackBackings())}}const s=[...new Set(a.filter(e=>"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],n=[...new Set(a.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=await Promise.all(r.map(async(e,t)=>{const r=[],o=e.attributes.get("codecs");let c;if(o)c=o.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=await t.getTrackBackings(),r=await Promise.all(i.map(async e=>({track:e,codec:await e.getCodec()})));c=await Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const l=e.attributes.get("video"),u=e.attributes.get("audio"),h=c.some(e=>_i.includes(ji(e))),d=c.some(e=>Fi.includes(ji(e)));if(null!==l&&!h){if(!s.includes(l))throw new Error(`Invalid M3U8 file; variant stream references video group "${l}" which is not defined in any #EXT-X-MEDIA tags.`);const e=a.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===l&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=Ze(i,t),a=this.getSegmentedInputForPath(r),s=(await a.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===await s.getCodec())break e;const n=await s.getDecoderConfig().then(e=>e?.codec??null);j(null!==n),c.push(n)}}if(null!==u&&!d){if(!n.includes(u))throw new Error(`Invalid M3U8 file; variant stream references audio group "${u}" which is not defined in any #EXT-X-MEDIA tags.`);const e=a.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===u&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=Ze(i,t),a=this.getSegmentedInputForPath(r),s=(await a.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===await s.getCodec())break e;const n=await s.getDecoderConfig().then(e=>e?.codec??null);j(null!==n),c.push(n)}}c=[...new Set(c)];let f=null,m=null;const p=e.attributes.getAsNumber("bandwidth");j(null!==p);const g=e.attributes.getAsNumber("average-bandwidth"),k=e.attributes.get("name");for(const i of c){const o=ji(i);if(null!==o)if(_i.includes(o)){if(null!==f)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");f=i;const n=e.attributes.get("video");if(null===n){const i=e.attributes.get("resolution");let a=null,s=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(a=Number(e[1]),s=Number(e[2]))}r.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:xe,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:f,pairingMask:1n<<BigInt(t),peakBitrate:p,averageBitrate:g,name:k,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:a,height:s}})}else{if(!s.includes(n))throw new Error(`Invalid M3U8 file; variant stream references video group "${n}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of a){const a=i.attributes.get("group-id"),s=i.attributes.get("type");if(a!==n||"video"!==s.toLowerCase())continue;const o=i.attributes.get("resolution")??e.attributes.get("resolution");let c=null,l=null;if(o){const e=o.match(/^(\d+)x(\d+)$/);e&&(c=Number(e[1]),l=Number(e[2]))}r.push({id:-1,demuxer:this,backingTrack:null,default:ln(i.attributes),autoselect:ln(i.attributes)||un(i.attributes),languageCode:hn(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:i.fullPath??e.fullPath,fullCodecString:f,pairingMask:1n<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:c,height:l}})}}}else if(Fi.includes(o)){if(null!==m)throw new Error("Unsupported M3U8 file; multiple audio codecs found in the CODECS attribute of a variant stream.");m=i;const s=e.attributes.get("audio");if(null===s){const i=e.attributes.get("channels"),a=null!==i?Number(i.split("/")[0]):null;r.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:xe,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:m,pairingMask:1n<<BigInt(t),peakBitrate:p,averageBitrate:g,name:k,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==a&&Number.isInteger(a)&&a>0?a:null}})}else{if(!n.includes(s))throw new Error(`Invalid M3U8 file; variant stream references audio group "${s}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of a){const a=i.attributes.get("group-id"),n=i.attributes.get("type");if(a!==s||"audio"!==n.toLowerCase())continue;const o=i.attributes.get("channels")??e.attributes.get("channels"),c=null!==o?Number(o.split("/")[0]):null;r.push({id:-1,demuxer:this,backingTrack:null,default:ln(i.attributes),autoselect:ln(i.attributes)||un(i.attributes),languageCode:hn(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:i.fullPath??e.fullPath,fullCodecString:m,pairingMask:1n<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==c&&Number.isInteger(c)&&c>0?c:null}})}}}}return r})),c=[],l=e=>{const t=c.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);t?(t.pairingMask|=e.pairingMask,t.default||(t.default=e.default),t.autoselect||(t.autoselect=e.autoselect),t.lineNumber=Math.min(t.lineNumber,e.lineNumber),null!==e.peakBitrate&&(t.peakBitrate=Math.max(t.peakBitrate??-1/0,e.peakBitrate)),null!==e.averageBitrate&&(t.averageBitrate=Math.max(t.averageBitrate??-1/0,e.averageBitrate)),t.languageCode===xe&&(t.languageCode=e.languageCode)):(e.id=c.length+1,c.push(e))};for(const u of o)for(const e of u)l(e);c.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const u of c)"video"===u.info.type?this.trackBackings.push(new on(u)):this.trackBackings.push(new cn(u));this.internalTracks=c})())}async getTrackBackings(){return await this.readMetadata(),j(this.trackBackings),this.trackBackings}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new an(this,e,i,null),this.segmentedInputs.push(t),t}async getMetadataTags(){return{}}async getMimeType(){return ys}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class nn{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(await e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof on){for(const r of i)if(await r.getCodec()===this.getCodec()){t=r;break}}else{j(this instanceof cn);for(const e of i)if(await e.getCodec()===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t})())}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return{...ht,default:this.internalTrack.autoselect,primary:this.internalTrack.default}}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){j(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}async getDurationFromMetadata(e){return await this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)}async getLiveRefreshInterval(){return await this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}async getFirstPacket(e){return await this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)}async getPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)}async getKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)}async getNextPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)}async getNextKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)}}class on extends nn{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return ji(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}async getColorSpace(){return await this.hydrate(),this.backingVideoTrack.getColorSpace()}async canBeTransparent(){return await this.hydrate(),this.backingVideoTrack.canBeTransparent()}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingVideoTrack.getDecoderConfig()}}class cn extends nn{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return ji(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingAudioTrack.getDecoderConfig()}}const ln=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},un=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},hn=e=>{if(null===e)return xe;const t=e.split("-")[0];return t||xe};class dn{constructor(){this._isIsobmff=!1}}class fn extends dn{constructor(){super(...arguments),this._isIsobmff=!0}async _getMajorBrand(e){let t=e._reader.requestSlice(0,12);if(Xe(t)&&(t=await t),!t)return null;t.skip(4);const i=bc(t,4);return"ftyp"!==i&&"styp"!==i?null:bc(t,4)}_createDemuxer(e){return new vr(e)}}class mn extends fn{async _canReadInput(e){const t=await this._getMajorBrand(e);if(null!==t)return"qt  "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(Xe(t)&&(t=await t),!t)return!1;let r=uc(t),a=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(Xe(t)&&(t=await t),!t)return!1;r=mc(t),a=16}if(r<a)return!1;const s=bc(t,4);if("moof"===s||"sidx"===s)return!0;if("emsg"!==s&&"prft"!==s&&"free"!==s)return!1;i+=r}return!1}get name(){return"MP4"}get mimeType(){return"video/mp4"}}class pn extends fn{async _canReadInput(e){return"qt  "===await this._getMajorBrand(e)}get name(){return"QuickTime File Format"}get mimeType(){return"video/quicktime"}}class gn extends dn{async isSupportedEBMLOfDocType(e,t){let i=e._reader.requestSlice(0,Kr);if(Xe(i)&&(i=await i),!i)return!1;const r=Xr(i);if(null===r)return!1;if(r<1||r>8)return!1;if(Gr(i,r)!==qr.EBML)return!1;const a=Yr(i);if("number"!==typeof a)return!1;let s=e._reader.requestSlice(i.filePos,a);if(Xe(s)&&(s=await s),!s)return!1;const n=i.filePos;for(;s.filePos<=n+a-2;){const e=Jr(s);if(!e)break;const{id:i,size:r}=e,a=s.filePos;if(void 0===r)return!1;switch(i){case qr.EBMLVersion:if(1!==Gr(s,r))return!1;break;case qr.EBMLReadVersion:if(1!==Gr(s,r))return!1;break;case qr.DocType:if(Zr(s,r)!==t)return!1;break;case qr.DocTypeVersion:if(Gr(s,r)>4)return!1}s.filePos=a+r}return!0}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new Ca(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class kn extends gn{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class yn extends dn{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=i.filePos+r.size}const i=await Ra(e._reader,t,t+4096);if(!i)return!1;const r=i.header,a=Qi(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+a,4);if(Xe(s)&&(s=await s),!s)return!1;const n=uc(s);if(n===$i||n===Gi)return!0;t=i.startPos+i.header.totalSize;const o=await Ra(e._reader,t,t+4);if(!o)return!1;const c=o.header;return r.channel===c.channel&&r.sampleRate===c.sampleRate}_createDemuxer(e){return new Fa(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class bn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,12);if(Xe(t)&&(t=await t),!t)return!1;const i=bc(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===bc(t,4)}_createDemuxer(e){return new $a(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class wn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,4);return Xe(t)&&(t=await t),!!t&&"OggS"===bc(t,4)}_createDemuxer(e){return new Wa(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class Tn extends dn{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return Xe(i)&&(i=await i),!!i&&"fLaC"===bc(i,4)}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new ts(e)}}class Sn extends dn{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(Xe(i)&&(i=await i),!i)return!1;const r=Ya(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),Xe(i)&&(i=await i),!i)return!1;const a=Ya(i);return!!a&&(r.objectType===a.objectType&&r.samplingFrequencyIndex===a.samplingFrequencyIndex&&r.channelConfiguration===a.channelConfiguration)}_createDemuxer(e){return new Za(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class vn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,205);if(Xe(t)&&(t=await t),!t)return!1;const i=rc(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])}_createDemuxer(e){return new ls(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class Pn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,7);if(Xe(t)&&(t=await t),!t)return!1;if(!("#EXTM3U"===bc(t,7)))return!1;if(!(e._rootSource instanceof zs))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0}_createDemuxer(e){return new sn(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return ys}}const In=new mn,xn=new pn,Cn=new gn,Bn=new kn,En=new yn,_n=new bn,Rn=new wn,Fn=new Sn,An=new Tn,Mn=new vn,Dn=new Pn,Nn=[Dn,In,xn,Cn,Bn,_n,Rn,An,En,Fn,Mn],On=[Dn,In,xn,En,Fn,Mn];var Ln=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});Ye();let zn=-1/0,Un=-1/0,qn=null;"undefined"!==typeof FinalizationRegistry&&(qn=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-zn>=1e3&&(ct._error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),zn=t),"undefined"!==typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(t-Un>=1e3&&(ct._error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),Un=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class Wn{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const Hn=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],Vn=new Set(Hn);class jn{get codedWidth(){return this.visibleRect.width}get codedHeight(){return this.visibleRect.height}get displayWidth(){return this.rotation%180===0?this.squarePixelWidth:this.squarePixelHeight}get displayHeight(){return this.rotation%180===0?this.squarePixelHeight:this.squarePixelWidth}get microsecondTimestamp(){return Math.trunc(Me*this.timestamp)}get microsecondDuration(){return Math.trunc(Me*this.duration)}get hasAlpha(){return this.format&&this.format.includes("A")}constructor(e,t){if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!Vn.has(t.format))throw new TypeError("init.format must be one of: "+Hn.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&rt(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0;const i=t.layout??to(t.format,t.codedWidth,t.codedHeight);let r=t.colorSpace??null;null===r&&(r="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:t.visibleRect?.left??0,top:t.visibleRect?.top??0,width:t.visibleRect?.width??t.codedWidth,height:t.visibleRect?.height??t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?Y(e):Y(e).slice(),this._layout=i,this.colorSpace=new Qn(r)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==t?.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==t?.timestamp&&!Number.isFinite(t?.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==t?.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==t?.visibleRect&&rt(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:e.visibleRect?.x??0,top:e.visibleRect?.y??0,width:e.visibleRect?.width??e.codedWidth,height:e.visibleRect?.height??e.codedHeight},this.rotation=t?.rotation??0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=t?.timestamp??e.timestamp/1e6,this.duration=t?.duration??(e.duration??0)/1e6,this.colorSpace=new Qn(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&rt(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new jn(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*Me),duration:Math.trunc((t.duration??0)*Me)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const a=t.visibleRect??{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(a.width,a.height),n=s.getContext("2d",{alpha:We(),willReadFrequently:!0});if(!n)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");n.drawImage(e,-a.left,-a.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:a.width,height:a.height},this.squarePixelWidth=a.width,this.squarePixelHeight=a.height,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=new Qn({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof Wn))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!Hn.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=e.getColorSpace()}this.encodeOptions=t?.encodeOptions??{},this.pixelAspectRatio=it({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),qn?.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return j(null!==this._data),this._data instanceof Wn?new jn(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):Yn(this._data)?new jn(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(j(this._layout),new jn(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new jn(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(qn?.unregister(this),this._data instanceof Wn?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Yn(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){if(eo(e),this._closed)throw new Error("VideoSample is closed.");if(null==(e.format??this.format))throw new Error("Cannot get allocation size when format is null.");if(Yn(this._data))return this._data.allocationSize(e);return ro(this,e).allocationSize}async copyTo(e,t={}){if(!le(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(eo(t),this._closed)throw new Error("VideoSample is closed.");if(null==(t.format??this.format))throw new Error("Cannot copy video sample data when format is null.");if(j(null!==this._data),Yn(this._data))return this._data.copyTo(e,t);if(t.format&&!["RGBA","RGBX","BGRA","BGRX"].includes(this.format)&&["RGBA","RGBX","BGRA","BGRX"].includes(t.format)){if(!(this._data instanceof Wn)){if("undefined"===typeof VideoFrame)throw new Error("For this sample, converting from a non-RGB to an RGB format requires VideoFrame to be defined.");const i=this.toVideoFrame(),r=await i.copyTo(e,t);return i.close(),r}{const i={stack:[],error:void 0,hasError:!1};try{const r=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,await this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},t.colorSpace??"srgb"),!1);if(!(r instanceof jn))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(r.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${r.format}' instead.`);return await r.copyTo(e,t)}catch(c){i.error=c,i.hasError=!0}finally{Ln(i)}}}const i=ro(this,t);j(this.format);const r=Y(e);if(r.byteLength<i.allocationSize)throw new TypeError(`Destination buffer too small. Required: ${i.allocationSize}, Available: ${r.byteLength}`);const a=io(this.format);let s;if(this._data instanceof Wn){let e=this._data.getDataPlanes();if(Xe(e)&&(e=await e),!Array.isArray(e)||e.some(e=>!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');s=e}else if(this._data instanceof Uint8Array)j(this._layout),j(this._layout.length===a.length),s=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");j(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);s=[{data:Y(t.data),stride:4*this.codedWidth}]}const n=[],o=a.length;for(let l=0;l<o;l++){const e=i.computedLayouts[l],t=s[l].stride,a=s[l].data;let o=e.sourceTop*t;o+=e.sourceLeftBytes;let c=e.destinationOffset;const u=e.sourceWidthBytes,h={offset:c,stride:e.destinationStride};for(let i=0;i<e.sourceHeight;i++){if(o+u>a.byteLength)throw new Error("Source buffer OOB read.");if(c+u>r.byteLength)throw new Error("Destination buffer OOB write.");const i=a.subarray(o,o+u);r.set(i,c),o+=t,c+=e.destinationStride}n.push(h)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),a=this.format.includes("X")&&t.format.includes("A");if(e||a)for(let t=0;t<i.allocationSize;t+=4){if(e){const e=r[t],i=r[t+2];r[t]=i,r[t+2]=e}a&&(r[t+3]=255)}}return n}toVideoFrame(){if(this._closed)throw new Error("VideoSample is closed.");if(j(null!==this._data),this._data instanceof Wn){if(null===this.format)throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if format is null.");const e=this._data.getDataPlanes();if(Xe(e))throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if getDataPlanes() returns a promise.");const t=e.reduce((e,t)=>e+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const a=[];for(const s of e)i.set(s.data,r),a.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:a[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return Yn(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(j(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,a,s,n,o,c){let l=0,u=0,h=this.displayWidth,d=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(l=t,u=i,h=r,d=a,f=s,m=n,void 0!==o?(p=o,g=c):(p=h,g=d)):(f=t,m=i,void 0!==r&&(p=r,g=a)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(l))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:l,sy:u,sWidth:h,sHeight:d}=this._rotateSourceRegion(l,u,h,d,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const w=this.rotation%180===0?1:p/g;e.scale(1/w,w),e.drawImage(k,l,u,h,d,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&Zn(t.crop,"options.");const i=e.canvas.width,r=e.canvas.height,a=t.rotation??this.rotation,[s,n]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let o,c,l,u,h=t.crop;h&&(h=Jn(h,s,n));const{sx:d,sy:f,sWidth:m,sHeight:p}=this._rotateSourceRegion(t.crop?.left??0,t.crop?.top??0,t.crop?.width??s,t.crop?.height??n,a);if("fill"===t.fit)o=0,c=0,l=i,u=r;else{const[e,a]=t.crop?[t.crop.width,t.crop.height]:[s,n],h="contain"===t.fit?Math.min(i/e,r/a):Math.max(i/e,r/a);l=e*h,u=a*h,o=(i-l)/2,c=(r-u)/2}e.save();const g=a%180===0?1:l/u;e.translate(i/2,r/2),e.rotate(a*Math.PI/180),e.scale(1/g,g),e.translate(-i/2,-r/2),e.drawImage(this.toCanvasImageSource(),d,f,m,p,o,c,l,u),e.restore()}_rotateSourceRegion(e,t,i,r,a){return 90===a?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===a?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===a&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,a=e.height,[s,n]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,c=i.crop?i.crop.height:n;let l=0;2*r<o&&2*a<c&&(l=Math.floor(Math.log2(Math.min(o/r,c/a))));const u=r*2**l,h=a*2**l,{canvas:d,context:f,isNew:m}=l>0?Gn(u,h):{canvas:e,context:t,isNew:i.targetIsFresh};f.imageSmoothingQuality="high",i.fillBlack?(f.fillStyle="black",f.fillRect(0,0,u,h)):m||f.clearRect(0,0,u,h),this.drawWithFit(f,{fit:i.fit,rotation:i.rotation,crop:i.crop}),f.globalCompositeOperation="copy";for(let p=l;p>1;p--){const e=r*2**p,t=a*2**p;f.drawImage(d,0,0,e,t,0,0,e/2,t/2)}f.globalCompositeOperation="source-over",l>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(d,0,0,2*r,2*a,0,0,r,a),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(j(null!==this._data),this._data instanceof Wn||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}async transform(e){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&Zn(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const t=K(this.rotation+(e.rotate??0)),[i,r]=t%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let a=e.crop;a&&(a=Jn(a,i,r));const s=a?a.width:i,n=a?a.height:r,o=s/n;let c,l;void 0!==e.width&&void 0===e.height?(c=e.width,l=c/o):void 0===e.width&&void 0!==e.height?(l=e.height,c=l*o):void 0!==e.width&&void 0!==e.height?(c=e.width,l=e.height):(c=s,l=n),c=Be(c,e.roundDimensionsTo??1),l=Be(l,e.roundDimensionsTo??1);const u={width:c,height:l,fit:e.fit??"fill",rotation:t,crop:a??{left:0,top:0,width:i,height:r},alpha:e.alpha??"keep"};for(const m of Kn){let e=m(this,u);if(Xe(e)&&(e=await e),null!==e)return e}const{canvas:h,context:d,isNew:f}=Gn(u.width,u.height);return this._drawWithFitAndMipmapping(h,d,{fit:u.fit,rotation:u.rotation,crop:u.crop,targetIsFresh:f,fillBlack:"discard"===u.alpha}),new jn(h,{timestamp:this.timestamp,duration:this.duration,rotation:0})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const Kn=[],Xn=[];let $n=0;const Gn=(e,t)=>{for(const a of Xn)if(a.canvas.width===e&&a.canvas.height===t)return a.age=$n++,{canvas:a.canvas,context:a.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return Xn.length>=3&&Xn.splice(tt(Xn,e=>e.age),1),Xn.push({canvas:i,context:r,age:$n++}),{canvas:i,context:r,isNew:!0}};class Qn{constructor(e){if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(te);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(re);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(se);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=e?.primaries??null,this.transfer=e?.transfer??null,this.matrix=e?.matrix??null,this.fullRange=e?.fullRange??null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const Yn=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,Jn=(e,t,i)=>{const r=Math.min(e.left,t),a=Math.min(e.top,i),s=Math.min(e.width,t-r),n=Math.min(e.height,i-a);return j(s>=0),j(n>=0),{left:r,top:a,width:s,height:n}},Zn=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},eo=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},to=(e,t,i)=>{const r=io(e),a=[];let s=0;for(const n of r){const e=Math.ceil(t/n.widthDivisor),r=Math.ceil(i/n.heightDivisor),o=e*n.sampleBytes,c=o*r;a.push({offset:s,stride:o}),s+=c}return a},io=e=>{const t=(e,t,i,r,a)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return a&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:Te(e),j(!1)}},ro=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,a=ao(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let n;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");n=t.format}else n=e.format;return no(a,n,s)},ao=(e,t,i,r,a)=>{const s={...e};if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!so(a,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},so=(e,t)=>{if(null===e)return!0;const i=io(e);for(let r=0;r<i.length;r++){const e=i[r],a=e.widthDivisor,s=e.heightDivisor;if((t.x||0)%a!==0)return!1;if((t.y||0)%s!==0)return!1}return!0},no=(e,t,i)=>{const r=io(t),a=r.length;if(void 0!==i&&i.length!==a)throw new TypeError(`Layout must have ${a} planes.`);let s=0;const n=[],o=[];for(let c=0;c<a;c++){const t=r[c],a=t.sampleBytes,l=t.widthDivisor,u=t.heightDivisor,h={destinationOffset:0,destinationStride:0,sourceTop:0,sourceHeight:0,sourceLeftBytes:0,sourceWidthBytes:0};if(h.sourceTop=Math.ceil(Math.trunc(e.y||0)/u),h.sourceHeight=Math.ceil(Math.trunc(e.height||0)/u),h.sourceLeftBytes=Math.floor(Math.trunc(e.x||0)/l)*a,h.sourceWidthBytes=Math.floor(Math.trunc(e.width||0)/l)*a,void 0!==i){const e=i[c];if(e.stride<h.sourceWidthBytes)throw new TypeError(`Stride for plane ${c} is too small.`);h.destinationOffset=e.offset,h.destinationStride=e.stride}else h.destinationOffset=s,h.destinationStride=h.sourceWidthBytes;const d=h.destinationStride*h.sourceHeight+h.destinationOffset;if(d>4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(d),s=Math.max(s,d);for(let e=0;e<c;e++){const t=n[e];if(!(o[c]<=t.destinationOffset||o[e]<=h.destinationOffset))throw new TypeError("Planes overlap.")}n.push(h)}return{allocationSize:s,computedLayouts:n}},oo=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]);class co{constructor(){this._referenceCount=0}}class lo{get microsecondTimestamp(){return Math.trunc(Me*this.timestamp)}get microsecondDuration(){return Math.trunc(Me*this.duration)}constructor(e){if(this._closed=!1,po(e)){if(null===e.format)throw new TypeError("AudioData with null format is not supported.");this._data=e,this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=e.numberOfFrames,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp/1e6,this.duration=e.numberOfFrames/e.sampleRate}else if(e instanceof co){if(this._data=e,e._referenceCount++,this.format=e.getFormat(),!oo.has(this.format))throw new TypeError("getFormat() must return an AudioSampleFormat.");if(this.sampleRate=e.getSampleRate(),!Number.isInteger(this.sampleRate)||this.sampleRate<=0)throw new TypeError("getSampleRate() must return a positive integer.");if(this.numberOfFrames=e.getNumberOfFrames(),!Number.isInteger(this.numberOfFrames)||this.numberOfFrames<0)throw new TypeError("getNumberOfFrames() must return a non-negative integer.");if(this.numberOfChannels=e.getNumberOfChannels(),!Number.isInteger(this.numberOfChannels)||this.numberOfChannels<=0)throw new TypeError("getNumberOfChannels() must return a positive integer.");if(this.timestamp=e.getTimestamp(),!Number.isFinite(this.timestamp))throw new TypeError("getTimestamp() must return a finite number.");this.duration=this.numberOfFrames/this.sampleRate}else{if(!e||"object"!==typeof e)throw new TypeError("Invalid AudioDataInit: must be an object.");if(!oo.has(e.format))throw new TypeError("Invalid AudioDataInit: invalid format.");if(!Number.isFinite(e.sampleRate)||e.sampleRate<=0)throw new TypeError("Invalid AudioDataInit: sampleRate must be > 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(e?.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(uo(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*uo(this.format);if(i.byteLength<r)throw new TypeError("Invalid AudioDataInit: insufficient data size.");this._data=i}qn?.register(this,{type:"audio",data:this._data},this)}allocationSize(e){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(!Number.isInteger(e.planeIndex)||e.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==e.format&&!oo.has(e.format))throw new TypeError("Invalid format.");if(void 0!==e.frameOffset&&(!Number.isInteger(e.frameOffset)||e.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==e.frameCount&&(!Number.isInteger(e.frameCount)||e.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const t=e.format??this.format,i=e.frameOffset??0;if(i>=this.numberOfFrames)throw new RangeError("frameOffset out of range");const r=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-i;if(r>this.numberOfFrames-i)throw new RangeError("frameCount out of range");const a=uo(t),s=ho(t);if(s&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!s&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(s?r:r*this.numberOfChannels)*a}copyTo(e,t){if(!le(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!oo.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:a}=t;let{planeIndex:s}=t,n=this.format;const o=i??this.format;if(!o)throw new Error("Destination format not determined");const c=this.numberOfFrames,l=this.numberOfChannels,u=a??0;if(u>=c)throw new RangeError("frameOffset out of range");const h=void 0!==r?r:c-u;if(h>c-u)throw new RangeError("frameCount out of range");const d=uo(o),f=ho(o);if(f&&s>=l)throw new RangeError("planeIndex out of range");if(!f&&0!==s)throw new RangeError("planeIndex out of range");const m=(f?h:h*l)*d;if(e.byteLength<m)throw new RangeError("Destination buffer is too small");const p=J(e),g=mo(o);if(po(this._data)){if(Ue()&&l>2&&o!==n)return void go(this._data,p,n,o,l,s,u,h);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:u,frameCount:h,format:o})}catch(S){if("f32-planar"===o)throw S;n="f32-planar"}}const k=fo(n),y=uo(n),b=ho(n);let w;if(this._data instanceof co){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=c*y*(b?1:l);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(b)if(f)w=e(s),s=0;else{w=new Uint8Array(c*y*l);for(let t=0;t<l;t++){const i=e(t);w.set(i,t*c*y)}}else w=e(0)}else if(this._data instanceof Uint8Array)w=this._data;else if(j("f32-planar"===n),f)w=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:s})),this._data.copyTo(w,{format:"f32-planar",planeIndex:s}),s=0;else{w=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:0})*l);for(let e=0;e<l;e++)this._data.copyTo(w.subarray(e*c*y,(e+1)*c*y),{format:"f32-planar",planeIndex:e})}const T=J(w);for(let v=0;v<h;v++)if(f){let e;e=b?(s*c+(v+u))*y:((v+u)*l+s)*y;g(p,v*d,k(T,e))}else for(let e=0;e<l;e++){let t;t=b?(e*c+(v+u))*y:((v+u)*l+e)*y;g(p,(v*l+e)*d,k(T,t))}}clone(){if(this._closed)throw new Error("AudioSample is closed.");if(this._data instanceof co){const e=new lo(this._data);return e.setTimestamp(this.timestamp),e}if(po(this._data)){const e=new lo(this._data.clone());return e.setTimestamp(this.timestamp),e}return new lo({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp,data:this._data})}trim(e,t=this.numberOfFrames){if(!Number.isInteger(e)||e<0)throw new TypeError("startFrame must be a non-negative integer.");if(!Number.isInteger(t)||t<0)throw new TypeError("endFrame must be a non-negative integer.");if(e>this.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t<e)throw new RangeError("endFrame must not be less than startFrame.");if(this._closed)throw new Error("AudioSample is closed.");const i=t-e,r=uo(this.format);let a;if(ho(this.format)){const t=i*r;if(a=new Uint8Array(t*this.numberOfChannels),i>0)for(let r=0;r<this.numberOfChannels;r++)this.copyTo(a.subarray(r*t,(r+1)*t),{planeIndex:r,format:this.format,frameOffset:e,frameCount:i})}else a=new Uint8Array(i*this.numberOfChannels*r),i>0&&this.copyTo(a,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new lo({data:a,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(qn?.unregister(this),this._data instanceof co?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):po(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof co?this._createAudioDataFromData():po(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(ho(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(new Uint8Array(t,i*e,e),{planeIndex:i,format:this.format});return new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:t})}{const e=new ArrayBuffer(this.allocationSize({planeIndex:0,format:this.format}));return this.copyTo(e,{planeIndex:0,format:this.format}),new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:e})}}toAudioBuffer(){if(this._closed)throw new Error("AudioSample is closed.");const e=new AudioBuffer({numberOfChannels:this.numberOfChannels,length:this.numberOfFrames,sampleRate:this.sampleRate}),t=new Float32Array(this.allocationSize({planeIndex:0,format:"f32-planar"})/4);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(t,{planeIndex:i,format:"f32-planar"}),e.copyToChannel(t,i);return e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}[Symbol.dispose](){this.close()}static*_fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,a=e.length,s=Math.floor(24e4/i);let n=0,o=a;for(;o>0;){const a=Math.min(s,o),c=new Float32Array(i*a);for(let t=0;t<i;t++)e.copyFromChannel(c.subarray(t*a,(t+1)*a),t,n);yield new lo({format:"f32-planar",sampleRate:r,numberOfFrames:a,numberOfChannels:i,timestamp:t+n/r,data:c}),n+=a,o-=a}}static fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,a=e.length,s=Math.floor(24e4/i);let n=0,o=a;const c=[];for(;o>0;){const a=Math.min(s,o),l=new Float32Array(i*a);for(let t=0;t<i;t++)e.copyFromChannel(l.subarray(t*a,(t+1)*a),t,n);const u=new lo({format:"f32-planar",sampleRate:r,numberOfFrames:a,numberOfChannels:i,timestamp:t+n/r,data:l});c.push(u),n+=a,o-=a}return c}}const uo=e=>{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},ho=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},fo=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},mo=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,Ie(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,Ie(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,Ie(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},po=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,go=(e,t,i,r,a,s,n,o)=>{const c=fo(i),l=mo(r),u=uo(i),h=uo(r),d=ho(i);if(ho(r))if(d){const r=new ArrayBuffer(o*u),a=J(r);e.copyTo(r,{planeIndex:s,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++){l(t,e*h,c(a,e*u))}}else{const r=new ArrayBuffer(o*a*u),d=J(r);e.copyTo(r,{planeIndex:0,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++){l(t,e*h,c(d,(e*a+s)*u))}}else if(d){const r=new ArrayBuffer(o*u),s=J(r);for(let d=0;d<a;d++){e.copyTo(r,{planeIndex:d,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++){l(t,(e*a+d)*h,c(s,e*u))}}}else{const r=new ArrayBuffer(o*a*u),s=J(r);e.copyTo(r,{planeIndex:0,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++)for(let i=0;i<a;i++){const r=e*a+i;l(t,r*h,c(s,r*u))}}},ko=[],yo=[],bo=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},wo=e=>{if(!Je(e))throw new TypeError("timestamp must be a number.")},To=(e,t,i)=>i.verifyKeyPackets?t.then(async t=>{if(!t||"delta"===t.type)return t;const i=await e.determinePacketType(t);return i&&(t.type=i),t}):t;class So{constructor(e){if(!(e instanceof Oo))throw new TypeError("track must be an InputTrack.");this._track=e}async getFirstPacket(e={}){if(bo(e),this._track.input._disposed)throw new Zo;return To(this._track,this._track._backing.getFirstPacket(e),e)}async getFirstKeyPacket(e={}){bo(e);const t=await this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null}async getPacket(e,t={}){if(wo(e),bo(t),this._track.input._disposed)throw new Zo;return To(this._track,this._track._backing.getPacket(e,t),t)}async getNextPacket(e,t={}){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");if(bo(t),this._track.input._disposed)throw new Zo;return To(this._track,this._track._backing.getNextPacket(e,t),t)}async getKeyPacket(e,t={}){if(wo(e),bo(t),this._track.input._disposed)throw new Zo;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=await this._track._backing.getKeyPacket(e,t);if(!i)return i;j("key"===i.type);return"delta"===await this._track.determinePacketType(i)?this.getKeyPacket(i.timestamp-1/await this._track.getTimeResolution(),t):i}async getNextKeyPacket(e,t={}){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");if(bo(t),this._track.input._disposed)throw new Zo;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=await this._track._backing.getNextKeyPacket(e,t);if(!i)return i;j("key"===i.type);return"delta"===await this._track.determinePacketType(i)?this.getNextKeyPacket(i,t):i}packets(e,t,i={}){if(void 0!==e&&!(e instanceof ar))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!i?.metadataOnly)throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof ar))throw new TypeError("endPacket must be an EncodedPacket.");if(bo(i),this._track.input._disposed)throw new Zo;const r=[];let{promise:a,resolve:s}=ke(),{promise:n,resolve:o}=ke(),c=!1,l=!1,u=null,h=!1;const d=[],f=()=>Math.max(2,d.length);(async()=>{let u=e??await this.getFirstPacket(i);for(;u&&!l&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=t?.sequenceNumber);)r.length>f()?(({promise:n,resolve:o}=ke()),await n):(r.push(u),s(),({promise:a,resolve:s}=ke()),u=await this.getNextPacket(u,i));c=!0,s()})().catch(e=>{h||(u=e,h=!0,s())});const m=this._track;return{async next(){for(;;){if(m.input._disposed)throw new Zo;if(l)return{value:void 0,done:!0};if(h)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(d.push(t);d.length>0&&t-d[0]>=1e3;)d.shift();return o(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};await a}},return:async()=>(l=!0,o(),s(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}class vo{constructor(e,t){this.onSample=e,this.onError=t}}class Po{mediaSamplesInRange(e=-1/0,t=1/0,i){wo(e),wo(t);const r=[];let a=!1,s=null,{promise:n,resolve:o}=ke(),{promise:c,resolve:l}=ke(),u=!1,h=!1,d=!1,f=null,m=null,p=!1;const g={...i,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{f=await this._createDecoder(i=>{l(),i.timestamp>=t&&(h=!0),h?i.close():(s&&(i.timestamp>e?(r.push(s),a=!0):s.close()),i.timestamp>=e&&(r.push(i),a=!0),s=a?null:i,r.length>0&&(o(),({promise:n,resolve:o}=ke())))},e=>{p||(m=e,p=!0,o())});const i=this._createPacketSink(),k=await i.getKeyPacket(e,g)??await i.getFirstKeyPacket(g);let y=k;const b=i.packets(k??void 0,void 0,g);for(await b.next();y&&!h&&!this._track.input._disposed;){const e=Io(r.length);if(r.length+f.getDecodeQueueSize()>e){({promise:c,resolve:l}=ke()),await c;continue}f.decode(y);const t=await b.next();if(t.done)break;y=t.value}await b.return(),d||this._track.input._disposed||await f.flush(),!a&&s&&r.push(s),u=!0,o()})().catch(e=>{p||(m=e,p=!0,o())}).finally(()=>{f?.close()});const k=this._track,y=()=>{s?.close();for(const e of r)e.close()};return{async next(){for(;;){if(k.input._disposed)throw d=!0,h=!0,y(),new Zo;if(d)return{value:void 0,done:!0};if(p)throw d=!0,h=!0,y(),m;if(r.length>0){const e=r.shift();return l(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};await n}},return:async()=>(d=!0,h=!0,l(),o(),y(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=async function*(e){Symbol.iterator in e?yield*e[Symbol.iterator]():yield*e[Symbol.asyncIterator]()}(e),r=[],a=[];let{promise:s,resolve:n}=ke(),{promise:o,resolve:c}=ke(),l=!1,u=!1,h=null,d=null,f=!1;const m=e=>{a.push(e),n(),({promise:s,resolve:n}=ke())},p={...t,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{h=await this._createDecoder(e=>{if(c(),u)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i<t;i++)m(i<t-1?e.clone():e);else e.close()},e=>{f||(d=e,f=!0,n())});const e=this._createPacketSink();let t=null,s=null,g=-1;const k=async()=>{j(s),j(h);let t=s;for(h.decode(t);t.sequenceNumber<g;){const i=Io(a.length);for(;a.length+h.getDecodeQueueSize()>i&&!u;)({promise:o,resolve:c}=ke()),await o;if(u)break;const r=await e.getNextPacket(t,p);j(r),h.decode(r),t=r}g=-1},y=async()=>{j(h),await h.flush();for(let e=0;e<r.length;e++)m(null);r.length=0};for await(const a of i){if(wo(a),u||this._track.input._disposed)break;const i=await e.getPacket(a,p),n=i&&await e.getKeyPacket(a,p);n?(t&&(n.sequenceNumber!==s.sequenceNumber||i.timestamp<t.timestamp)&&(await k(),await y()),r.push(i.timestamp),g=Math.max(i.sequenceNumber,g),t=i,s=n):(-1!==g&&(await k(),await y()),m(null),t=null)}u||this._track.input._disposed||(-1!==g&&await k(),await y()),l=!0,n()})().catch(e=>{f||(d=e,f=!0,n())}).finally(()=>{h?.close()});const g=this._track,k=()=>{for(const e of a)e?.close()};return{async next(){for(;;){if(g.input._disposed)throw u=!0,k(),new Zo;if(u)return{value:void 0,done:!0};if(f)throw u=!0,k(),d;if(a.length>0){const e=a.shift();return j(void 0!==e),c(),{value:e,done:!1}}if(l)return{value:void 0,done:!0};await s}},return:async()=>(u=!0,c(),n(),k(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}const Io=e=>0===e?40:8;class xo extends vo{constructor(e,t,i,r,a,s){super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=a,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new Le,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const n=ko.find(e=>e.supports(i,r));if(n)this.customDecoder=new n,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof jn))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();j(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(Ve()){if("avc"===i&&this.decoderConfig.description){const e=Mt(Y(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=Nt(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig={...this.decoderConfig,hardwareAcceleration:"prefer-software"}),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=Lt(t),this.decoderConfig={...this.decoderConfig,description:At(e)}))}}oe(this.decoderConfig.colorSpace)||(this.decoderConfig={...this.decoderConfig,colorSpace:{primaries:this.decoderConfig.colorSpace?.primaries??"bt709",matrix:this.decoderConfig.colorSpace?.matrix??"bt709",transfer:this.decoderConfig.colorSpace?.transfer??"bt709",fullRange:this.decoderConfig.colorSpace?.fullRange??!1}})}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(j(this.decoder),Math.max(this.decoder.decodeQueueSize,this.alphaDecoder?.decodeQueueSize??0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(j(this.decoder),Ue()||ge(this.inputTimestamps,e.timestamp,e=>e),Ve()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const a of xt(e.data,this.decoderConfig)){const r=Ct(e.data[a.offset]);if(i||(i=r>=1&&r<=5),r===wt.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(a.offset,a.offset+a.length))}if(!this.decoderConfig.description)for(let e=0;e<t.length;e++){const i=t[e];if(Ct(i[0])!==wt.SPS)continue;const r=Nt(i);r&&0!==r.maxDecFrameBuffering&&1!==r.bitstreamRestrictionFlag&&(t[e]=Lt(r));break}const r=((e,t)=>{if(t.description){const i=3&Y(t.description)[4];return Rt(e,i+1)}return _t(e)})(t,this.decoderConfig);e=new ar(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=Jt(e.data,this.decoderConfig);t&&(e=new ar(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new Bo),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();j(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();j(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=ni(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(t??e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of zt(e,this.decoderConfig)){const i=Ut(e[t.offset]);if(i===St.RASL_N||i===St.RASL_R)return!0}return!1}sampleHandler(e){if(Ue()){if(this.sampleQueue.length>0&&e.timestamp>=X(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}ge(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();j(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}async mergeAlpha(e,t){const i=ke();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){j(this.merger);const i=await this.merger.merge(e,t);r.sample=new jn(i)}else r.sample=new jn(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(a){ye(this.finalSamples,r),this.onError(a)}finally{ye(this.mergeAlphaPromises,i.promise),i.resolve()}}async flush(){if(this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(j(this.decoder),await Promise.all([this.decoder.flush(),this.alphaDecoder?.flush()]),await Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),Ue()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(j(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.merger?.close());for(const e of this.sampleQueue)e.close();this.sampleQueue.length=0}}let Co=null;class Bo{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!Co){const e=new Blob([`(${Eo.toString()})()`],{type:"application/javascript"});Co=URL.createObjectURL(e)}const e=Ie(navigator.hardwareConcurrency,1,4);for(let t=0;t<e;t++){const e=new Worker(Co);e.addEventListener("message",e=>{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=ke();this.pendingRequests.set(i,r);const a=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,a.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const Eo=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:a,alpha:s}=e.data;i=i.then(async()=>{try{const e=await r(a,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{a.close(),s.close()}})});const r=async(e,t)=>{const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),c=i.includes("P12"),l=r.includes("P10"),u=r.includes("P12");if(l!==o||u!==c)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return await a(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return await s(e,t,i);if("NV12"===i)return await n(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)},a=async(e,t,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=new Uint8Array(4*s);await e.copyTo(n);const c=await o(t,r,a,1);for(let o=0,u=3;o<s;o++,u+=4)n[u]=c[o];const l={format:"RGBX"===i||"RGBA"===i?"RGBA":"BGRA",codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[n.buffer]};return new VideoFrame(n,l)},s=async(e,t,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=i.includes("P10"),n=i.includes("P12"),c=s||n?2:1;let l,u;i.startsWith("I420")?(l=Math.ceil(r/2),u=Math.ceil(a/2)):i.startsWith("I422")?(l=Math.ceil(r/2),u=a):(l=r,u=a);const h=r*a,d=h*c,f=l*u*c,m=new Uint8Array(d+2*f+h*c);await e.copyTo(m);const p=await o(t,r,a,c),g=d+2*f;m.set(p,g);const k={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[m.buffer]};return new VideoFrame(m,k)},n=async(e,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=Math.ceil(r/2)*Math.ceil(a/2),c=e.allocationSize();t&&t.byteLength===c||(t=new Uint8Array(c)),await e.copyTo(t);const l=new Uint8Array(s+2*n+s);l.set(t.subarray(0,s),0);const u=s,h=s+n,d=s;for(let o=0;o<n;o++)l[u+o]=t[d+2*o],l[h+o]=t[d+2*o+1];const f=await o(i,r,a,1);l.set(f,s+2*n);const m={format:"I420A",codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[l.buffer]};return new VideoFrame(l,m)},o=async(t,i,r,a)=>{const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),await t.copyTo(e);const n=t.format;if("RGBA"===n||"BGRA"===n||"RGBX"===n||"BGRX"===n){const t="RGBA"===n||"RGBX"===n?0:2,a=i*r;for(let i=0;i<a;i++)e[i]=e[4*i+t];return e.subarray(0,a)}return e.subarray(0,i*r*a)}},_o=e=>{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class Ro extends Po{constructor(e,t={}){if(!(e instanceof Uo))throw new TypeError("videoTrack must be an InputVideoTrack.");_o(t),super(),this._track=e,this._decoderOptions=t}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(je("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=await this._track.getCodec(),r=await this._track.getRotation();let a=await this._track.getDecoderConfig();const s=await this._track.getTimeResolution();return j(i&&a),a={...a,hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency},new xo(e,t,i,a,r,s)}_createPacketSink(){return new So(this._track)}async getSample(e,t={}){wo(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Fo{constructor(e,t={}){if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof Uo))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&Zn(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&_o(t.decoderOptions),this._videoTrack=e,this._alpha=t.alpha??!1,this._options=t,this._fit=t.fit??"fill",this._videoSampleSink=new Ro(e,t.decoderOptions),this._canvasPool=Array.from({length:t.poolSize??0},()=>null)}_ensureInit(){return this._initPromise??(this._initPromise=(async()=>{const e=this._options,t=this._videoTrack,i=e.rotation??await t.getRotation(),r=await t.getSquarePixelWidth(),a=await t.getSquarePixelHeight(),[s,n]=i%180===0?[r,a]:[a,r];let o=e.crop;o&&(o=Jn(o,s,n));let[c,l]=o?[o.width,o.height]:[s,n];const u=c/l;void 0!==e.width&&void 0===e.height?(c=e.width,l=Math.round(c/u)):void 0===e.width&&void 0!==e.height?(l=e.height,c=Math.round(l*u)):void 0!==e.width&&void 0!==e.height&&(c=e.width,l=e.height),this._width=c,this._height=l,this._rotation=i,this._crop=o})())}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],a=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),a=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||We()});j(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:a,fillBlack:!this._alpha&&We()});const n={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),n}async getCanvas(e,t){wo(e),await this._ensureInit();const i=await this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)}async*canvases(e,t,i){await this._ensureInit(),yield*Pe(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e))}async*canvasesAtTimestamps(e,t){await this._ensureInit(),yield*Pe(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e))}}class Ao extends vo{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new Le,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const a=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const a=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(a*s)/s),e(t)},s=yo.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof lo))throw new TypeError("The argument passed to onSample must be an AudioSample.");a(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{a(new lo(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(j(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(j(this.decoder),this.expectedFirstTimestamp??(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}async flush(){this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(j(this.decoder),await this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(j(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class Mo extends vo{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,j(Ri.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:a,littleEndian:s}=Vi(this.codec);switch(this.inputSampleSize=a,a){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-128:"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const a=(1<<i|(15&r)<<i-4|1<<i-5)-33;return 0===t?a:-a})(e.getUint8(t)):"alaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let a=0;return a=4!==i?1<<i|(15&r)<<i-4|1<<i-5:r<<1|1,0===t?a:-a})(e.getUint8(t)):j(!1);break;case 2:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint16(t,s)-32768:"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):j(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>Se(e,t,s)-2**23:"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>Se(e,t,i)<<8>>8)(e,t,s):j(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-2**31:"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):j(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):j(!1);break;default:Te(a),j(!1)}switch(a){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+128));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:Te(a),j(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=J(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,a=new ArrayBuffer(r),s=new DataView(a);for(let l=0;l<i*this.decoderConfig.numberOfChannels;l++){const e=l*this.inputSampleSize,i=l*this.outputSampleSize,r=this.readInputValue(t,e);this.writeOutputValue(s,i,r)}const n=i/this.decoderConfig.sampleRate;(null===this.currentTimestamp||Math.abs(e.timestamp-this.currentTimestamp)>=n)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=n;const c=new lo({format:this.outputFormat,data:a,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(c)}async flush(){}close(){}}class Do extends Po{constructor(e){if(!(e instanceof qo))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(je("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=await this._track.getCodec(),r=await this._track.getDecoderConfig();return j(i&&r),Ri.includes(r.codec)?new Mo(e,t,r):new Ao(e,t,i,r)}_createPacketSink(){return new So(this._track)}async getSample(e,t={}){wo(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class No{constructor(e){if(!(e instanceof qo))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new Do(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}async getBuffer(e,t){wo(e);const i=await this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)}buffers(e,t,i){return Pe(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return Pe(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class Oo{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof Uo}isAudioTrack(){return this instanceof qo}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}async getInternalCodecId(){return this._backing.getInternalCodecId()}get internalCodecId(){return Lo(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}async getLanguageCode(){return this._backing.getLanguageCode()}get languageCode(){return Lo(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}async getName(){return this._backing.getName()}get name(){return Lo(this._backing.getName(),"name","getName")}async getTimeResolution(){return this._backing.getTimeResolution()}get timeResolution(){return Lo(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}async isRelativeToUnixEpoch(){return this._backing.isRelativeToUnixEpoch()}async getUnixTimeForTimestamp(e){return this._backing.getUnixTimeForTimestamp(e)}async hasUnixTimeMapping(){return null!==await this._backing.getUnixTimeForTimestamp(await this.getFirstTimestamp())}async getDisposition(){return this._backing.getDisposition()}get disposition(){return Lo(this._backing.getDisposition(),"disposition","getDisposition")}async getBitrate(){return this._backing.getBitrate()}async getAverageBitrate(){return this._backing.getAverageBitrate()}async getFirstTimestamp(){const e=await this._backing.getFirstPacket({metadataOnly:!0});return e?.timestamp??0}async computeDuration(e){const t=await this._backing.getPacket(1/0,{metadataOnly:!0,...e});return Ee((t?.timestamp??0)+(t?.duration??0),await this.getTimeResolution())}async getDurationFromMetadata(e={}){return this._backing.getDurationFromMetadata(e)}async computePacketStats(e=1/0,t){const i=new So(this);let r=1/0,a=-1/0,s=0,n=0;for await(const o of i.packets(void 0,void 0,{metadataOnly:!0,...t})){if(s>=e&&o.timestamp>=a)break;r=Math.min(r,o.timestamp),a=Math.max(a,o.timestamp+o.duration),s++,n+=o.byteLength}return{packetCount:s,averagePacketRate:s?Number((s/(a-r)).toPrecision(16)):0,averageBitrate:s?Number((8*n/(a-r)).toPrecision(16)):0}}async isLive(){return null!==await this._backing.getLiveRefreshInterval()}async getLiveRefreshInterval(){return this._backing.getLiveRefreshInterval()}canBePairedWith(e){if(!(e instanceof Oo))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&0n!==(this._backing.getPairingMask()&e._backing.getPairingMask())}async getPairableTracks(e){return this.input.getTracks(jo({filter:e=>e.canBePairedWith(this)},e))}async getPairableVideoTracks(e){return this.input.getVideoTracks(jo({filter:e=>e.canBePairedWith(this)},e))}async getPairableAudioTracks(e){return this.input.getAudioTracks(jo({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableVideoTrack(e){return this.input.getPrimaryVideoTrack(jo({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableAudioTrack(e){return this.input.getPrimaryAudioTrack(jo({filter:e=>e.canBePairedWith(this)},e))}async hasPairableTrack(e){e&&(e=zo(e));const t=await this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||await e(i)))return!0;return!1}hasPairableVideoTrack(e){return e&&(e=zo(e)),this.hasPairableTrack(async t=>t.isVideoTrack()&&(!e||await e(t)))}hasPairableAudioTrack(e){return e&&(e=zo(e)),this.hasPairableTrack(async t=>t.isAudioTrack()&&(!e||await e(t)))}}const Lo=(e,t,i)=>{if(Xe(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},zo=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return Xe(r)?r.then(i):i(r)}:void 0};class Uo extends Oo{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}async getCodec(){return this._backing.getCodec()}get codec(){return Lo(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??"prores"===await this._backing.getCodec()}async getCodedWidth(){return this._backing.getCodedWidth()}get codedWidth(){return Lo(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}async getCodedHeight(){return this._backing.getCodedHeight()}get codedHeight(){return Lo(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}async getRotation(){return this._backing.getRotation()}get rotation(){return Lo(this._backing.getRotation(),"rotation","getRotation")}async getSquarePixelWidth(){return this._backing.getSquarePixelWidth()}get squarePixelWidth(){return Lo(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}async getSquarePixelHeight(){return this._backing.getSquarePixelHeight()}get squarePixelHeight(){return Lo(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}async getPixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=it({num:await this.getSquarePixelWidth()*await this.getCodedHeight(),den:await this.getSquarePixelHeight()*await this.getCodedWidth()}))}get pixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=it({num:Lo(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*Lo(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:Lo(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*Lo(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")}))}async getDisplayWidth(){const e=await(this._backing.getMetadataDisplayWidth?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()}get displayWidth(){const e=this._backing.getMetadataDisplayWidth?.();if(void 0!==e){const t=Lo(e,"displayWidth","getDisplayWidth");if(null!==t)return t}const t=Lo(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return Lo(t,"displayWidth","getDisplayWidth")}async getDisplayHeight(){const e=await(this._backing.getMetadataDisplayHeight?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()}get displayHeight(){const e=this._backing.getMetadataDisplayHeight?.();if(void 0!==e){const t=Lo(e,"displayHeight","getDisplayHeight");if(null!==t)return t}const t=Lo(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return Lo(t,"displayHeight","getDisplayHeight")}async getColorSpace(){return this._backing.getColorSpace()}async hasHighDynamicRange(){const e=await this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix}async canBeTransparent(){return this._backing.canBeTransparent()}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(j(null!==t),ko.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(await VideoDecoder.isConfigSupported(e)).supported}catch(e){return ct._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=await this.getCodec();if(null===t)return null;const i=await this.getDecoderConfig();return j(i),ni(t,i,e.data)}async computeFrameRateMetrics(e={}){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!Je(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const t=await this.getTimeResolution(),i=e.targetPacketCount??256,r=new So(this),a=[];let s=-1/0,n=0;for await(const I of r.packets(void 0,void 0,{metadataOnly:!0})){if(a.length>=i&&I.timestamp>=s)break;a.push(I.timestamp),s=Math.max(s,I.timestamp),n++}const o=new Float64Array(a.length);for(let I=0;I<a.length;I++)o[I]=Math.round(a[I]*t);o.sort();let c=1;for(let I=1;I<o.length;I++)o[I]!==o[c-1]&&(o[c++]=o[I]);if(c<2)return{underlyingFrameRate:null,bestGuessFrameRate:t,minFrameRate:t,maxFrameRate:t,averageFrameRate:t,medianFrameRate:t,frameRateIsConstant:!0,probedPacketCount:n};const l=o.subarray(0,c),u=Xo(l,t),h=u??t,d=null!==u?t/u:null,f=new Map;let m=1/0,p=-1/0,g=0;for(let I=1;I<c;I++){const e=l[I]-l[I-1],t=null!==d?Math.max(1,Math.round(e/d)):e;f.set(t,(f.get(t)??0)+1),m=Math.min(m,t),p=Math.max(p,t),g+=t}const k=c-1,y=[...f.keys()].sort((e,t)=>e-t),b=k-1>>1,w=k>>1;let T=0,S=0,v=0;for(const I of y)if(v+=f.get(I),0===T&&v>b&&(T=I),v>w){S=I;break}const P=(h/T+h/S)/2;return{underlyingFrameRate:u,bestGuessFrameRate:null!==u?u:Go(P),minFrameRate:h/p,maxFrameRate:h/m,averageFrameRate:h*k/g,medianFrameRate:P,frameRateIsConstant:null!==u&&1===m&&1===p,probedPacketCount:n}}}class qo extends Oo{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}async getCodec(){return this._backing.getCodec()}get codec(){return Lo(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??!0}async getNumberOfChannels(){return this._backing.getNumberOfChannels()}get numberOfChannels(){return Lo(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}async getSampleRate(){return this._backing.getSampleRate()}get sampleRate(){return Lo(this._backing.getSampleRate(),"sampleRate","getSampleRate")}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(j(null!==t),yo.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(await AudioDecoder.isConfigSupported(e)).supported}catch(e){return ct._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");return null===await this.getCodec()?null:"key"}}const Wo=e=>-(e??-1/0),Ho=e=>-e,Vo=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when 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i=e;if(t?.filter){const r=e.map(e=>t.filter(e));if(r.some(e=>Xe(e))){const t=await Promise.all(r);i=e.filter((e,i)=>t[i])}else i=e.filter((e,t)=>r[t])}if(!t?.sortBy)return i;const r=i.map(e=>t.sortBy(e)),a=r.some(e=>Xe(e))?await Promise.all(r):r;return i.map((e,t)=>({track:e,sortValue:a[t]})).sort((e,t)=>{const i=Array.isArray(e.sortValue)?e.sortValue:[e.sortValue],r=Array.isArray(t.sortValue)?t.sortValue:[t.sortValue],a=Math.max(i.length,r.length);for(let s=0;s<a;s++){const e=i[s]??0,t=r[s]??0;if(e!==t)return e-t}return 0}).map(e=>e.track)},Xo=(e,t)=>{const i=1e6,r=1+1e-9,a=[12,15,20,24e3/1001,24,25,3e4/1001,30,48,50,6e4/1001,60,100,12e4/1001,120,144,240];if(e.length<2)return null;const s=new Float64Array(e.length-1);for(let T=1;T<e.length;T++){const t=e[T]-e[T-1];if(!(t>0))return null;s[T-1]=t}const n=s.slice();n.sort();let o=n[Math.floor(.05*n.length)];for(let T=0;T<6;T++){let e=0,t=0;for(const a of s){const i=Math.max(1,Math.round(a/o));Math.abs(a-i*o)>=r||(e+=a,t+=i)}if(0===t)return null;const i=e/t;if(Math.abs(i-o)<=1e-12*Math.max(1,o)){o=i;break}o=i}let c=0,l=0,u=0;for(const T of s){const e=Math.max(1,Math.round(T/o));Math.abs(T-e*o)>=r||(c++,l+=T,u+=e)}if(c/s.length<.98)return null;o=l/u;const h=1/Math.min(u,1e3),d=Math.max(Number.EPSILON,o-h),f=o+h,m=t/f,p=t/d,g=t/o;let k=null,y=1/0;for(const T of a){if(T<m||T>p)continue;const e=Math.abs(T/g-1);e<y&&(k=T,y=e)}if(null===k){const e=$o(d,f,i),r=$o(m,p,i);if(r&&(!e||r.den<e.den||r.den===e.den&&r.num<=e.num))k=r.num/r.den;else{if(!e)return null;k=t*e.den/e.num}}const b=t/k;let w=0;for(const T of s){const e=Math.max(1,Math.round(T/b));Math.abs(T-e*b)<r&&w++}return w/s.length<.98?null:k},$o=(e,t,i)=>{for(let r=1;r<=i;r++){const i=Math.floor(e*r)+1;if(i/r<t)return it({num:i,den:r})}return null},Go=e=>{const t=[24/1.001,30/1.001,60/1.001,120/1.001],i=[12,15,20,24,25,30,48,50,60,100,120,144,240];for(const s of t)if(Math.abs(s/e-1)<=5e-4)return s;let r=e,a=1/0;for(const s of i){const t=Math.abs(s/e-1);t<=.025&&t<a&&(r=s,a=t)}return r};Ye();const Qo=2;class Yo extends st{get disposed(){return this._disposed}constructor(e){if(super(),this._demuxerPromise=null,this._format=null,this._trackBackingsCache=null,this._backingToTrack=new Map,this._disposed=!1,this._nextSourceCacheAge=0,this._sourceRefs=[],this._sourceCache=[],this._sourceCachePromises=[],this._onFormatDetermined=null,!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(!Array.isArray(e.formats)||e.formats.some(e=>!(e instanceof dn)))throw new TypeError("options.formats must be an array of InputFormat.");if(!(e.source instanceof Os||e.source instanceof Ls))throw new TypeError("options.source must be a Source or SourceRef.");if(e.source instanceof Os&&e.source._disposed)throw new TypeError("options.source must not be a disposed Source.");if(void 0!==e.initInput&&!(e.initInput instanceof Yo))throw new TypeError("options.initInput, when provided, must be an Input.");void 0!==e.formatOptions&&((e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(`${t}, when provided, must be an object.`);if(void 0!==e.isobmff){if(!e.isobmff||"object"!==typeof e.isobmff)throw new TypeError(`${t}.isobmff, when provided, must be an object.`);if(void 0!==e.isobmff.resolveKeyId&&"function"!==typeof e.isobmff.resolveKeyId)throw new TypeError(`${t}.isobmff.resolveKeyId, when provided, must be a function.`)}if(void 0!==e.hls){if(!e.hls||"object"!==typeof e.hls)throw new TypeError(`${t}.hls, when provided, must be an object.`);if(void 0!==e.hls.offsetTimestampsByDateTime&&"boolean"!==typeof e.hls.offsetTimestampsByDateTime)throw new TypeError(`${t}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}})(e.formatOptions,"formatOptions"),this._formats=e.formats,this._initInput=e.initInput??null,this._formatOptions=e.formatOptions??{},e.source instanceof Os?this._rootRef=e.source.ref():this._rootRef=e.source,this._sourceRefs.push(this._rootRef)}get _rootSource(){return this._rootRef.source}async _getSourceUncached(e){j(this._rootSource instanceof zs);const t=await this._rootSource._resolveRequest(e);return this._emit("source",{source:t.source,request:e,isRoot:e.isRoot}),t}_getSourceCached(e,t=1){const i=this._sourceCache.find(i=>i.cacheGroup===t&&Us(i.request,e));if(i)return i.age++,Promise.resolve(i.sourceRef.source.ref());const r=this._sourceCachePromises.find(i=>i.cacheGroup===t&&Us(i.request,e));if(r)return r.promise.then(e=>e.sourceRef.source.ref());const a=(async()=>{const i=await this._getSourceUncached(e);if(et(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount)>=4){const e=tt(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount?e.age:1/0);j(-1!==e);const i=this._sourceCache[e];this._sourceCache.splice(e,1),i.sourceRef.free(),ye(this._sourceRefs,i.sourceRef)}this._sourceRefs.push(i);const r=this._sourceCachePromises.findIndex(t=>t.request===e);j(-1!==r),this._sourceCachePromises.splice(r,1);return{request:e,sourceRef:i,age:this._nextSourceCacheAge++,cacheGroup:t}})();return this._sourceCachePromises.push({request:e,cacheGroup:t,promise:a}),a.then(e=>{const t=e.sourceRef.source.ref();return this._sourceCache.push(e),t})}_getDemuxer(){return this._demuxerPromise??(this._demuxerPromise=(async()=>{this._reader=new ec(this._rootSource),this._emit("source",{source:this._rootSource,request:null,isRoot:!0});for(const e of this._formats){if(await e._canReadInput(this))return this._format=e,this._onFormatDetermined?.(e),e._createDemuxer(this)}throw new Jo})())}get source(){return this._rootSource}async getFormat(){return await this._getDemuxer(),j(this._format),this._format}async canRead(){try{return await this._getDemuxer(),!0}catch(e){if(e instanceof Jo)return!1;throw e}}async getFirstTimestamp(e){e??(e=await this.getTracks());const t=e.filter(e=>null!==e);if(0===t.length)return 0;const i=await Promise.all(t.map(e=>e._backing.getFirstPacket({metadataOnly:!0}))),r=Math.min(...i.map(e=>e?.timestamp??1/0));return r===1/0?0:r}async computeDuration(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e);if(0===i.length)return 0;const r=await Promise.all(i.map(e=>e.computeDuration(t)));return Math.max(...r)}async getDurationFromMetadata(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e),r=(await Promise.all(i.map(e=>e.getDurationFromMetadata(t)))).filter(e=>null!==e);return 0===r.length?null:Math.max(...r)}async getTracks(e){e&&(e=Vo(e));const t=(await this._getTrackBackings()).map(e=>this._wrapBackingAsTrack(e));return Ko(t,e)}async getVideoTracks(e){e&&(e=Vo(e));const t=(await this.getTracks()).filter(e=>e.isVideoTrack());return Ko(t,e)}async getAudioTracks(e){e&&(e=Vo(e));const t=(await this.getTracks()).filter(e=>e.isAudioTrack());return Ko(t,e)}async getPrimaryVideoTrack(e){e&&(e=Vo(e));const t=jo(e,{sortBy:async e=>[Ho((await e.getDisposition()).default),Ho(await e.hasPairableAudioTrack()),Ho(!(await e.hasOnlyKeyPackets())),Wo(await e.getBitrate())]});return(await this.getVideoTracks(t))[0]??null}async getPrimaryAudioTrack(e){e&&(e=Vo(e));const t=await this.getPrimaryVideoTrack(),i=jo(e,{sortBy:async e=>[Ho(!t||e.canBePairedWith(t)),Ho((await e.getDisposition()).default),Wo(await e.getBitrate())]});return(await this.getAudioTracks(i))[0]??null}async _getTrackBackings(){const e=await this._getDemuxer();return this._trackBackingsCache??(this._trackBackingsCache=await e.getTrackBackings())}_wrapBackingAsTrack(e){const t=this._backingToTrack.get(e);if(t)return t;const i="video"===e.getType()?new Uo(this,e):new qo(this,e);return this._backingToTrack.set(e,i),i}async getMimeType(){return(await this._getDemuxer()).getMimeType()}async getMetadataTags(){return(await this._getDemuxer()).getMetadataTags()}dispose(){if(!this._disposed){this._disposed=!0;for(const e of 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tc(r.bytes,r.view,r.offset,e,i):null}requestSliceRange(e,t,i){if(this.source._disposed)throw new Zo;if(e<0)return null;if(null!==this.fileSizeNonStrict)return this.requestSlice(e,Ie(this.fileSizeNonStrict-e,t,i));{const r=this.requestSlice(e,i),a=r=>r||(j(null!==this.fileSizeNonStrict),this.requestSlice(e,Ie(this.fileSizeNonStrict-e,t,i)));return Xe(r)?r.then(a):a(r)}}requestEntireFile(){if(null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);return(async()=>{const e=[];let t=0;for(;;){if(1===e.length&&null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);let i=this.requestSliceRange(t,0,1024);if(Xe(i)&&(i=await i),!i||0===i.length)break;const r=rc(i,i.length);e.push(r),t+=i.length}const i=new Uint8Array(t);let r=0;for(const a of e)i.set(a,r),r+=a.length;return new tc(i,J(i),0,0,t)})()}}class tc{constructor(e,t,i,r,a){this.bytes=e,this.view=t,this.offset=i,this.start=r,this.end=a,this.bufferPos=r-i}static tempFromBytes(e){return new tc(e,J(e),0,0,e.length)}get length(){return this.end-this.start}get filePos(){return this.offset+this.bufferPos}set filePos(e){this.bufferPos=e-this.offset}get remainingLength(){return Math.max(this.end-this.filePos,0)}skip(e){this.bufferPos+=e}slice(e,t=this.end-e){if(e<this.start||e+t>this.end)throw new RangeError("Slicing outside of original slice.");return new tc(this.bytes,this.view,this.offset,e,e+t)}}const ic=(e,t)=>{if(e.filePos<e.start||e.filePos+t>e.end)throw new RangeError(`Tried reading [${e.filePos}, ${e.filePos+t}), but slice is [${e.start}, ${e.end}). This is likely an internal error, please report it alongside the file that caused it.`)},rc=(e,t)=>{ic(e,t);const i=e.bytes.subarray(e.bufferPos,e.bufferPos+t);return e.bufferPos+=t,i},ac=e=>(ic(e,1),e.view.getUint8(e.bufferPos++)),sc=(e,t)=>{ic(e,2);const i=e.view.getUint16(e.bufferPos,t);return e.bufferPos+=2,i},nc=e=>{ic(e,2);const t=e.view.getUint16(e.bufferPos,!1);return e.bufferPos+=2,t},oc=e=>{ic(e,3);const t=Se(e.view,e.bufferPos,!1);return e.bufferPos+=3,t},cc=e=>{ic(e,2);const t=e.view.getInt16(e.bufferPos,!1);return e.bufferPos+=2,t},lc=(e,t)=>{ic(e,4);const i=e.view.getUint32(e.bufferPos,t);return e.bufferPos+=4,i},uc=e=>{ic(e,4);const t=e.view.getUint32(e.bufferPos,!1);return e.bufferPos+=4,t},hc=e=>{ic(e,4);const t=e.view.getUint32(e.bufferPos,!0);return e.bufferPos+=4,t},dc=e=>{ic(e,4);const t=e.view.getInt32(e.bufferPos,!1);return e.bufferPos+=4,t},fc=(e,t)=>{let i,r;return t?(i=lc(e,!0),r=lc(e,!0)):(r=lc(e,!1),i=lc(e,!1)),4294967296*r+i},mc=e=>4294967296*uc(e)+uc(e),pc=e=>4294967296*dc(e)+uc(e),gc=e=>{const t=hc(e),i=(e=>{ic(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},kc=e=>{ic(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},yc=e=>{ic(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},bc=(e,t)=>{ic(e,t);let i="";for(let r=0;r<t;r++)i+=String.fromCharCode(e.bytes[e.bufferPos++]);return i},wc=(e,t,i)=>Z.decode(rc(e,t)).split("\n").map(e=>e.trim()).filter(e=>e.length>0&&!i?.ignore?.(e));var Tc,Sc,vc,Pc;(Sc=Tc||(Tc={}))[Sc.Unsynchronisation=128]="Unsynchronisation",Sc[Sc.ExtendedHeader=64]="ExtendedHeader",Sc[Sc.ExperimentalIndicator=32]="ExperimentalIndicator",Sc[Sc.Footer=16]="Footer",(Pc=vc||(vc={}))[Pc.ISO_8859_1=0]="ISO_8859_1",Pc[Pc.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",Pc[Pc.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",Pc[Pc.UTF_8=3]="UTF_8";const Ic=128,xc=10,Cc=["Blues","Classic rock","Country","Dance","Disco","Funk","Grunge","Hip-hop","Jazz","Metal","New age","Oldies","Other","Pop","Rhythm and blues","Rap","Reggae","Rock","Techno","Industrial","Alternative","Ska","Death metal","Pranks","Soundtrack","Euro-techno","Ambient","Trip-hop","Vocal","Jazz & funk","Fusion","Trance","Classical","Instrumental","Acid","House","Game","Sound clip","Gospel","Noise","Alternative rock","Bass","Soul","Punk","Space","Meditative","Instrumental pop","Instrumental rock","Ethnic","Gothic","Darkwave","Techno-industrial","Electronic","Pop-folk","Eurodance","Dream","Southern rock","Comedy","Cult","Gangsta","Top 40","Christian rap","Pop/funk","Jungle music","Native US","Cabaret","New wave","Psychedelic","Rave","Showtunes","Trailer","Lo-fi","Tribal","Acid punk","Acid jazz","Polka","Retro","Musical","Rock 'n' roll","Hard rock","Folk","Folk rock","National folk","Swing","Fast fusion","Bebop","Latin","Revival","Celtic","Bluegrass","Avantgarde","Gothic rock","Progressive rock","Psychedelic rock","Symphonic rock","Slow rock","Big band","Chorus","Easy listening","Acoustic","Humour","Speech","Chanson","Opera","Chamber music","Sonata","Symphony","Booty bass","Primus","Porn groove","Satire","Slow jam","Club","Tango","Samba","Folklore","Ballad","Power ballad","Rhythmic Soul","Freestyle","Duet","Punk rock","Drum solo","A cappella","Euro-house","Dance hall","Goa music","Drum & bass","Club-house","Hardcore techno","Terror","Indie","Britpop","Negerpunk","Polsk punk","Beat","Christian gangsta rap","Heavy metal","Black metal","Crossover","Contemporary Christian","Christian rock","Merengue","Salsa","Thrash metal","Anime","Jpop","Synthpop","Christmas","Art rock","Baroque","Bhangra","Big beat","Breakbeat","Chillout","Downtempo","Dub","EBM","Eclectic","Electro","Electroclash","Emo","Experimental","Garage","Global","IDM","Illbient","Industro-Goth","Jam Band","Krautrock","Leftfield","Lounge","Math rock","New romantic","Nu-breakz","Post-punk","Post-rock","Psytrance","Shoegaze","Space rock","Trop rock","World music","Neoclassical","Audiobook","Audio theatre","Neue Deutsche Welle","Podcast","Indie rock","G-Funk","Dubstep","Garage rock","Psybient"],Bc=(e,t)=>{var i;const r=e.filePos;t.raw??(t.raw={}),(i=t.raw).TAG??(i.TAG=rc(e,Ic-3)),e.filePos=r;const a=Ec(e,30);a&&(t.title??(t.title=a));const s=Ec(e,30);s&&(t.artist??(t.artist=s));const n=Ec(e,30);n&&(t.album??(t.album=n));const o=Ec(e,4),c=Number.parseInt(o,10);Number.isInteger(c)&&c>0&&(t.date??(t.date=new Date(String(c))));const l=rc(e,30);let u;if(0===l[28]&&0!==l[29]){const i=l[29];i>0&&(t.trackNumber??(t.trackNumber=i)),e.skip(-30),u=Ec(e,28),e.skip(2)}else e.skip(-30),u=Ec(e,30);u&&(t.comment??(t.comment=u));const h=ac(e);h<Cc.length&&(t.genre??(t.genre=Cc[h]))},Ec=(e,t)=>{const i=rc(e,t),r=$e(i.indexOf(0),i.length),a=i.subarray(0,r);let s="";for(let n=0;n<a.length;n++)s+=String.fromCharCode(a[n]);return s.trimEnd()},_c=e=>{const t=e.filePos,i=bc(e,3),r=ac(e),a=ac(e),s=ac(e),n=uc(e);if("ID3"!==i||255===r||255===a||0!==(2155905152&n))return e.filePos=t,null;let o=Ji(n);return s&Tc.Footer&&(o+=xc),{majorVersion:r,revision:a,flags:s,size:o}},Rc=(e,t,i)=>{var r,a,s,n,o;if(![2,3,4].includes(t.majorVersion))return void ct._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Tc.Footer?t.size-xc:t.size,l=rc(e,c),u=new Fc(t,l);if(t.flags&Tc.Unsynchronisation&&3===t.majorVersion&&u.ununsynchronizeAll(),t.flags&Tc.ExtendedHeader){const e=u.readU32();3===t.majorVersion?u.pos+=e:u.pos+=e-4}for(;u.pos<=u.bytes.length-u.frameHeaderSize();){const e=u.readId3V2Frame();if(!e)break;const c=u.pos,l=u.pos+e.size;let h=!1,d=!1,f=!1;if(3===t.majorVersion?(h=!!(64&e.flags),d=!!(128&e.flags)):4===t.majorVersion&&(h=!!(4&e.flags),d=!!(8&e.flags),f=!!(2&e.flags)||!!(t.flags&Tc.Unsynchronisation)),h)ct._warn(`Skipping encrypted ID3v2 frame ${e.id}`),u.pos=l;else if(d)ct._warn(`Skipping compressed ID3v2 frame ${e.id}`),u.pos=l;else{if(f&&u.ununsynchronizeRegion(u.pos,l),i.raw??(i.raw={}),"TXXX"===e.id){const e=(r=i.raw).TXXX??(r.TXXX={}),t=u.readId3V2TextEncoding(),a=u.readId3V2Text(t,l),s=u.readId3V2Text(t,l);e[a]??(e[a]=s)}else"T"===e.id[0]?(a=i.raw)[s=e.id]??(a[s]=u.readId3V2EncodingAndText(l)):(n=i.raw)[o=e.id]??(n[o]=u.readBytes(e.size));switch(u.pos=c,e.id){case"TIT2":case"TT2":i.title??(i.title=u.readId3V2EncodingAndText(l));break;case"TIT3":case"TT3":i.description??(i.description=u.readId3V2EncodingAndText(l));break;case"TPE1":case"TP1":i.artist??(i.artist=u.readId3V2EncodingAndText(l));break;case"TALB":case"TAL":i.album??(i.album=u.readId3V2EncodingAndText(l));break;case"TPE2":case"TP2":i.albumArtist??(i.albumArtist=u.readId3V2EncodingAndText(l));break;case"TRCK":case"TRK":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.trackNumber??(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.tracksTotal??(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.discNumber??(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.discsTotal??(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=u.readId3V2EncodingAndText(l);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==Cc[e]){i.genre??(i.genre=Cc[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==Cc[e]){i.genre??(i.genre=Cc[e]);break}}i.genre??(i.genre=e)}break;case"TDRC":case"TDAT":{const e=u.readId3V2EncodingAndText(l),t=new Date(e);Number.isNaN(t.getTime())||(i.date??(i.date=t))}break;case"TYER":case"TYE":{const e=u.readId3V2EncodingAndText(l),t=Number.parseInt(e,10);Number.isInteger(t)&&(i.date??(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.lyrics??(i.lyrics=u.readId3V2Text(e,l))}break;case"COMM":case"COM":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.comment??(i.comment=u.readId3V2Text(e,l))}break;case"APIC":case"PIC":{const e=u.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=u.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=u.readId3V2Text(e,l);const a=u.readU8(),s=u.readId3V2Text(e,l).trimEnd(),n=l-u.pos;if(n>=0){const e=u.readBytes(n);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===a?"coverFront":4===a?"coverBack":"unknown",description:s})}}break;default:u.pos+=e.size}u.pos=l}}};class Fc{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 2===this.header.majorVersion?6:10}ununsynchronizeAll(){const e=[];for(let t=0;t<this.bytes.length;t++){const i=this.bytes[t];if(e.push(i),255===i&&t!==this.bytes.length-1){0===this.bytes[t]&&t++}}this.bytes=new Uint8Array(e),this.view=new DataView(this.bytes.buffer)}ununsynchronizeRegion(e,t){const i=[];for(let s=e;s<t;s++){const e=this.bytes[s];if(i.push(e),255===e&&s!==t-1){0===this.bytes[s+1]&&s++}}const r=this.bytes.subarray(0,e),a=this.bytes.subarray(t);this.bytes=new Uint8Array(r.length+i.length+a.length),this.bytes.set(r,0),this.bytes.set(i,r.length),this.bytes.set(a,r.length+i.length),this.view=new DataView(this.bytes.buffer)}readBytes(e){const t=this.bytes.subarray(this.pos,this.pos+e);return this.pos+=e,t}readU8(){const e=this.view.getUint8(this.pos);return this.pos+=1,e}readU16(){const e=this.view.getUint16(this.pos,!1);return this.pos+=2,e}readU24(){const e=this.view.getUint16(this.pos,!1),t=this.view.getUint8(this.pos+2);return this.pos+=3,256*e+t}readU32(){const e=this.view.getUint32(this.pos,!1);return this.pos+=4,e}readAscii(e){let t="";for(let i=0;i<e;i++)t+=String.fromCharCode(this.view.getUint8(this.pos+i));return this.pos+=e,t}readId3V2Frame(){if(2===this.header.majorVersion){const e=this.readAscii(3);if("\0\0\0"===e)return null;return{id:e,size:this.readU24(),flags:0}}{const e=this.readAscii(4);if("\0\0\0\0"===e)return null;const t=this.readU32();let i=4===this.header.majorVersion?Ji(t):t;const r=this.readU16(),a=this.pos,s=e=>{const t=this.pos+e;if(t>this.bytes.length)return!1;if(t<=this.bytes.length-this.frameHeaderSize()){this.pos+=e;const t=this.readAscii(4);if("\0\0\0\0"!==t&&!/[0-9A-Z]{4}/.test(t))return!1}return!0};if(!s(i)){const e=4===this.header.majorVersion?t:Ji(t);s(e)&&(i=e)}return this.pos=a,{id:e,size:i,flags:r}}}readId3V2TextEncoding(){const e=this.readU8();if(e>3)throw new Error(`Unsupported text encoding: ${e}`);return e}readId3V2Text(e,t){const i=this.pos,r=this.readBytes(t-this.pos);switch(e){case vc.ISO_8859_1:{let e="";for(let t=0;t<r.length;t++){const a=r[t];if(0===a){this.pos=i+t+1;break}e+=String.fromCharCode(a)}return e}case vc.UTF_16_WITH_BOM:if(255===r[0]&&254===r[1]){const e=new TextDecoder("utf-16le"),t=$e(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}if(254===r[0]&&255===r[1]){const e=new TextDecoder("utf-16be"),t=$e(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}{const e=$e(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),Z.decode(r.subarray(0,e))}case vc.UTF_16_BE_NO_BOM:{const e=new TextDecoder("utf-16be"),t=$e(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(0,t))}case vc.UTF_8:{const e=$e(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),Z.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class Ac{constructor(e){this.host=e,this.closed=!1,this.resumes=new WeakMap}ensure(e){if(this.closed)return null;if(this.host.audioContext)return this.host.audioContext;const t=window.AudioContext||window.webkitAudioContext;let i;try{i=new t({sampleRate:e})}catch{i=new t}if(this.closed)return i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null;let r=null;try{r=i.createGain(),r.connect(i.destination);const e=this.host.muted?0:this.host.volume;return r.gain.value=e*e,this.closed?(r.disconnect(),i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null):(this.host.audioContext=i,this.host.gainNode=r,i)}catch(a){try{r?.disconnect()}catch(s){console.warn("MediaBunny gain setup cleanup:",s)}throw i.close().catch(e=>console.warn("MediaBunny context setup cleanup:",e)),a}}updateGain(){if(!this.host.gainNode)return;const e=this.host.muted?0:this.host.volume;this.host.gainNode.gain.value=e*e}resume(e){const t=this.resumes.get(e);if(t)return t;const i=e.resume();this.resumes.set(e,i);const r=()=>{this.resumes.get(e)===i&&this.resumes.delete(e)};return i.then(r,r),i}destroy(){if(this.closed)return;this.closed=!0;const{audioContext:e,gainNode:t}=this.host;this.host.audioContext=null,this.host.gainNode=null;try{t?.disconnect()}finally{e&&e.close().catch(e=>console.warn("MediaBunny context close error:",e))}}}class Mc{constructor(e){this.host=e}release(e,t){this.host.queuedNodes.delete(e),e.onended=null;let i,r=!1;try{t&&e.stop()}catch(a){r=!0,i=a}try{e.disconnect()}catch(a){r||(r=!0,i=a)}if(r)throw i}stop(){const e=[];for(const i of[...this.host.queuedNodes])try{this.release(i,!0)}catch(t){e.push(t)}if(e.length)throw e[0]}schedule({buffer:e,timestamp:t}){const i=this.host.audioContext,r=this.host.gainNode;if(!i||!r)return;const a=function(e,t,i,r){const a=e.audioContextStartTime+(t-e.playbackTimeAtStart)/e.playbackRate,s=(a+i/e.playbackRate-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;return{startAt:Math.max(a,r),offset:a<r?(r-a)*e.playbackRate:null,endMediaTime:s}}(this.host,t,e.duration,i.currentTime);if(null!==a.offset&&a.offset>=e.duration)return;const s=i.createBufferSource();this.host.queuedNodes.add(s);try{s.buffer=e,s.connect(r),s.playbackRate.value=this.host.playbackRate,s.onended=()=>{if(this.host.queuedNodes.has(s))try{this.release(s,!1)}catch(e){console.warn("MediaBunny ended node cleanup:",e)}},null===a.offset?s.start(a.startAt):s.start(a.startAt,a.offset),this.host.latestScheduledEndTime=Math.max(this.host.latestScheduledEndTime,a.endMediaTime)}catch(n){try{this.release(s,!0)}catch(o){console.warn("MediaBunny audio node cleanup:",o)}throw n}}}const Dc=Symbol("cancelled");class Nc{constructor(){this.cancelled=!1,this.waits=new Set,this.timers=new Map}wait(e){return new Promise((t,i)=>{const r=()=>t(Dc);this.cancelled?r():this.waits.add(r),e.then(e=>{this.waits.delete(r),t(e)},e=>{this.waits.delete(r),i(e)})})}delay(e){return this.cancelled?Promise.resolve(!1):new Promise(t=>{const i=setTimeout(()=>{this.timers.delete(i),t(!this.cancelled)},e);this.timers.set(i,t)})}cancel(){if(!this.cancelled){this.cancelled=!0;for(const e of this.waits)e();this.waits.clear();for(const[e,t]of this.timers)clearTimeout(e),t(!1);this.timers.clear()}}}function Oc(e){if(!e.audio.audioSink&&!e.video.videoSink)throw e.readyState=0,new Error("Input has no decodable audio or video tracks.")}function Lc(e,t,i){for(const r of i){if(!t())return;e.emit(r)}}class zc{constructor(e,t,i){this.host=e,this.contexts=t,this.nodes=i,this.task=null,this.closing=new WeakMap}async stopIterator(){const e=this.host.audioIterator;if(this.host.audioIterator=null,!e)return;let t=this.closing.get(e);t||(t=Promise.resolve().then(()=>e.return()).then(()=>{}),this.closing.set(e,t)),await t}cancel(){this.task?.cancel(),this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e))}async run(e){if(this.host.asyncId!==e)return;this.cancel();const t=this.host.audioSink,i=this.host.audioContext;if(!t||!i||this.host.paused||this.host.asyncId!==e)return;const r=new Nc;this.task=r;let a=null;const s=()=>!r.cancelled&&this.task===r&&this.host.asyncId===e&&!this.host.paused&&this.host.audioContext===i&&(!a||this.host.audioIterator===a);try{for(a=t.buffers(this.host.currentTime),this.host.audioIterator=a;s();){const e=[];let t=!1;for(let i=0;i<16;i++){const i=await r.wait(a.next());if(i===Dc||!s())return;if(i.done){t=!0;break}e.push(i.value)}if(e.length&&"suspended"===i.state){if(await r.wait(this.contexts.resume(i))===Dc||!s())return;Lc(this.host.events,s,["canplay","playing"])}for(const i of e){if(!s())return;this.nodes.schedule(i)}if(t)return;if(!(await r.delay(0))||!s())return;for(;this.host.latestScheduledEndTime-this.host.currentTime>1;)if(!(await r.delay(50))||!s())return}}catch(n){if(s())throw n}finally{r.cancel(),this.task===r&&(this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e)))}}}class Uc{constructor(e,h){N(this,u),N(this,t,!1),N(this,i,0),N(this,r),N(this,a),N(this,s),N(this,n,null),N(this,o,null),N(this,c,null),N(this,l),this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set,O(this,r,new Ac(this)),O(this,a,new Mc(this)),O(this,s,new zc(this,D(this,r),D(this,a))),O(this,l,h)}get currentTime(){return(e=this).paused||!e.audioContext?e.playbackTimeAtStart:(e.audioContext.currentTime-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;var e}ensureAudioContext(e){D(this,r).ensure(e)}updateGain(){D(this,r).updateGain()}stopQueuedNodes(){D(this,a).stop()}async stopIterator(){await D(this,s).stopIterator()}handleNoAudioTrack(){D(this,t)||(this.audioSink=null,this.ensureAudioContext())}cancelPending(){z(this,i)._++;try{this.pause()}finally{O(this,c,null),this.input=null,this.audioSink=null}}async load(e,r){if(D(this,t))return;this.cancelPending();const a=D(this,i);this.playbackTimeAtStart=0,this.audioContextStartTime=0,this.latestScheduledEndTime=0;const s=Promise.resolve().then(()=>L(this,u,h).call(this,e,a,r));O(this,c,s);try{await s}finally{D(this,c)===s&&O(this,c,null)}}async runIterator(e){D(this,t)||await D(this,s).run(e)}async play(){if(D(this,t))return;if(D(this,o))return D(this,o);if(!this.paused)return;const e=new Nc;O(this,n,e);const r=D(this,i),a=L(this,u,f).call(this,e,r);O(this,o,a);try{await a}finally{D(this,n)===e&&(O(this,n,null),O(this,o,null))}}pause(){this.paused||(this.playbackTimeAtStart=this.currentTime),this.paused=!0,this.asyncId++,D(this,n)?.cancel(),O(this,n,null),O(this,o,null),D(this,s).cancel(),this.stopQueuedNodes()}async seek(e){if(D(this,t))return;const i=!this.paused;D(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=this.audioContext?.currentTime??0,this.latestScheduledEndTime=this.playbackTimeAtStart;const r=++this.asyncId;i&&L(this,u,d).call(this,r)}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){if(D(this,t)||e===this.playbackRate)return;const i=this.currentTime;D(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=i,this.audioContextStartTime=this.audioContext?.currentTime??0,this.playbackRate=e,this.latestScheduledEndTime=i;const r=++this.asyncId;this.paused||L(this,u,d).call(this,r)}destroy(){if(D(this,t))return;O(this,t,!0),z(this,i)._++;const e=[];for(const t of[()=>this.pause(),()=>D(this,r).destroy()])try{t()}catch(a){e.push(a)}if(this.input=null,this.audioSink=null,O(this,c,null),e.length)throw e[0]}}t=new WeakMap,i=new WeakMap,r=new WeakMap,a=new WeakMap,s=new WeakMap,n=new WeakMap,o=new WeakMap,c=new WeakMap,l=new WeakMap,u=new WeakSet,h=async function({input:e,audioTrack:r,duration:a},s,n){const o=()=>!D(this,t)&&D(this,i)===s;if(o()){this.input=e,this.duration=a;try{const e=r&&null!==r.codec&&await r.canDecode();if(!o())return;if(e){if(this.ensureAudioContext(r.sampleRate),!o())return;this.audioSink=new No(r)}else this.handleNoAudioTrack();o()&&n?.()}catch(c){if(o())throw c}}},d=function(e){this.runIterator(e).catch(i=>{if(!D(this,t)&&e===this.asyncId){try{this.pause()}catch(r){console.warn("MediaBunny audio failure cleanup:",r)}try{D(this,l)?D(this,l).call(this,i):this.events.emit("error",i)}catch(r){console.warn("MediaBunny audio error listener:",r)}}})},f=async function(e,a){const s=()=>!D(this,t)&&!e.cancelled&&D(this,i)===a;try{const t=D(this,r).ensure();if(!t||!s())return;if("suspended"===t.state){if(await e.wait(D(this,r).resume(t))===Dc||!s())return}if(D(this,c)){if(await e.wait(D(this,c))===Dc||!s())return}this.audioContextStartTime=t.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1,L(this,u,d).call(this,++this.asyncId)}catch(n){if(s())throw n}};const qc=new WeakMap;async function Wc(e,t,i){const{input:r,loadSeq:a}=e;if(!e.media?.isHls||!r||e.destroyed)return;const s={};qc.set(e,s);const n=()=>!e.destroyed&&e.loadSeq===a&&e.input===r&&qc.get(e)===s;for(;n();){const a=e.media;if(!a?.isHls)return;let s;try{s=await i(r,a,t,n)}catch(o){if(!n())return;if(e.media===a)throw o;continue}if(!n())return;if(e.media===a){if(s)try{await e.replaceTracks(s)}catch(o){if(n())throw o}return}}}async function Hc(e,t,i,r){const a=await e.getVideoTracks();if(!r())return null;const s="auto"===i?await e.getPrimaryVideoTrack():a.find(e=>e.id===i)??t.videoTrack;if(!r()||!s)return null;let n=t.audioTrack,o=t.audioMode;return n&&s.canBePairedWith(n)||(n=await s.getPrimaryPairableAudioTrack(),o="auto"),{videoTrack:s,audioTrack:n,videoMode:"auto"===i?"auto":"manual",audioMode:o}}async function Vc(e,t,i,r){const a=await e.getAudioTracks();if(!r())return null;const s="auto"===i?t.videoTrack?await t.videoTrack.getPrimaryPairableAudioTrack():await e.getPrimaryAudioTrack():a.find(e=>e.id===i)??t.audioTrack;if(!r()||!s)return null;let n=t.videoTrack,o=t.videoMode;return n&&s.canBePairedWith(n)||(n=await s.getPrimaryPairableVideoTrack(),o="auto"),{videoTrack:n,audioTrack:s,videoMode:o,audioMode:"auto"===i?"auto":"manual"}}async function jc(e){return await e.getAverageBitrate()??await e.getBitrate()??0}const Kc=/\.m3u8(?:$|[?#])/i;function Xc(e){return"string"===typeof e&&Kc.test(e)}function $c(e){const t=function(e){return"string"===typeof e?new Ks(e):e instanceof Blob?new Hs(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new Gs(e):e??null}(e);return t?new Yo({source:t,formats:Xc(e)?On:Nn}):null}class Gc{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){return this.controller?.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}async wait(e,t){try{await Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,e?.dispose()}cancel(){if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),this.controller?.abort(),this.disposeInput()}}}async function Qc({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),a=t||i,s=Boolean(a&&await a.isLive());let n=Number.NaN;return r.length>0&&(n=await e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==n||s||(n=await e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:n??Number.NaN}function Yc(){let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}}class Jc{constructor(e){this.host=e,this.wanted=!1,this.playing=null,this.seeking=null}operation(){return{...Yc(),source:this.host.loadSeq,complete:Yc()}}current(e,t){return!this.host.destroyed&&e.source===this.host.loadSeq&&this[t]===e}cancelPlay(){const e=this.playing;this.playing=null,e?.resolve()}invalidate(){this.cancelPlay(),this.wanted=!1;const e=this.seeking;this.seeking=null,e?.complete.resolve(),e?.resolve(),this.host.seeking=!1}ended(){this.wanted=!1,this.cancelPlay()}stop(){this.host.paused||(this.host.paused=!0,this.stopEngines(),this.host.events.emit("pause"))}stopEngines(){const e=[];for(const i of[()=>this.host.audio.pause(),()=>this.host.video.stop()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}pause(){this.wanted=!1,this.cancelPlay(),this.stop()}play(){if(this.host.destroyed)return Promise.resolve();if(this.wanted=!0,this.playing)return this.playing.promise;if(this.host.ended)return this.seek(0,!0);if(!this.host.paused&&!this.seeking)return Promise.resolve();const e=this.operation();return this.playing=e,this.runPlay(e).then(e.resolve,e.reject),e.promise}async runPlay(e){const t=()=>this.current(e,"playing")&&this.wanted;try{for(;this.seeking;)if(await this.seeking.complete.promise,!t())return;if(!t())return;if(this.host.paused=!1,await this.host.audio.play(),!t())return void(this.wanted&&!this.host.destroyed||this.host.audio.pause());this.host.video.start(this.host.audio),Lc(this.host.events,t,["play","playing"])}catch(i){if(!t())return;this.wanted=!1,this.host.paused=!0;try{this.stopEngines()}catch(r){console.warn("MediaBunny play cleanup error:",r)}throw i}finally{this.playing===e&&(this.playing=null)}}seek(e,t){return this.position(async t=>{const i=this.host.audio.seek(e),r=t()?this.host.video.seek(e):Promise.resolve();await Promise.all([i,r])},["seeked"],!1,t)}replace(e,t){return this.position(async i=>{e.duration=await Qc(e),i()&&(this.host.media=e,await Promise.all([this.host.video.load(e),this.host.audio.load(e)]),i()&&(Oc(this.host),await Promise.all([this.host.video.seek(t),this.host.audio.seek(t)]),i()&&(this.host.readyState=4,this.host.networkState=1)))},["loadedmetadata","durationchange","progress","loadeddata","canplay","canplaythrough","seeked"],!0)}position(e,t,i,r){if(this.host.destroyed)return Promise.resolve();this.wanted=r??(this.seeking?this.wanted:!this.host.paused),this.cancelPlay();const a=this.seeking,s=this.operation();return this.seeking=s,a?.complete.resolve(),a?.resolve(),this.runPosition(s,e,t,i).then(s.resolve,s.reject),s.promise}async runPosition(e,t,i,r){const a=()=>this.current(e,"seeking");let s=!1;try{if(r&&this.stop(),!a())return;if(this.host.ended=!1,this.host.seeking=!0,Lc(this.host.events,a,["seeking","waiting"]),!a())return;if(r||this.stop(),!a())return;if(await t(a),!a())return;if(this.host.seeking=!1,e.complete.resolve(),Lc(this.host.events,a,i),!a())return;this.seeking=null,s=this.wanted}catch(n){if(!a())return;throw this.host.seeking=!1,this.wanted=!1,this.cancelPlay(),this.host.reportError(n),n}finally{e.complete.resolve(),this.seeking===e&&(this.seeking=null)}s&&await this.play()}}const Zc=new WeakMap,el=new WeakMap;function tl(e){const t=el.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.next()).then(e=>e.value??null);el.set(e,i);const r=()=>{el.get(e)===i&&el.delete(e)};return i.then(r,r),i}function il(e,t,i,r,a){const s=i?Math.max(.06,r/Math.max(1,a)):0;return i&&e<t-s?"skip":e<=t+s?"draw":"queue"}class rl{constructor(){this.image=null}cancel(){this.image&&(this.image.onload=null,this.image.onerror=null,this.image=null)}draw(e,t,i,r){this.cancel();const a=new Image;this.image=a,a.onload=()=>{if(this.image===a&&t()){this.cancel();try{i(a)}catch(e){r(e)}}},a.onerror=()=>{this.image===a&&this.cancel()},a.src=e}}class al{constructor(e,t,i,r){this.host=e,this.ready=t,this.draw=i,this.failure=r,this.stopped=!1,this.closed=!1,this.scheduled=null,this.fetching=null}current(e){return!this.closed&&!this.stopped&&this.host.asyncId===e}async update(e){const t=this.host.videoIterator;if(!t||!this.ready()||!this.current(e)||this.host.isFetching)return;const i={};this.fetching=i,this.host.isFetching=!0;const r=()=>this.current(e)&&this.host.videoIterator===t;try{for(;r();){const e=await tl(t);if(!r()||!e)return;const i=this.host.audioClock?.currentTime;if(void 0===i)return;const a=il(e.timestamp,i,this.host.dropLateFrames,this.host.avSyncTolerance,this.host.playbackRate);if("skip"!==a){if("draw"!==a)return void(this.host.nextFrame=e);this.draw(e)}}}catch(a){if(r())throw a}finally{this.fetching===i&&(this.fetching=null,this.host.isFetching=!1)}}request(e){this.update(e).catch(t=>{this.current(e)&&(this.stop(),this.report(t))})}report(e){try{this.failure(e)}catch(t){console.warn("MediaBunny video error listener:",t)}}cancelFrame(){null!==this.scheduled&&(cancelAnimationFrame(this.scheduled),this.scheduled=null)}schedule(e){if(!this.current(e))return;this.cancelFrame();const t=requestAnimationFrame(()=>{if(this.scheduled===t&&this.current(e)){this.scheduled=null;try{this.render()}catch(i){this.stop(),this.report(i)}}});this.scheduled=t,this.host.rafId=t}render(){const e=this.host.asyncId,t=()=>this.current(e);if(!t()||!this.host.audioClock)return;const i=this.host.audioClock.currentTime,r=Date.now();if(r-this.host.lastTimeUpdate>=this.host.timeupdateInterval){if(this.host.events.emit("timeupdate"),!t())return;this.host.lastTimeUpdate=r}if(this.ready()){if(Number.isFinite(this.host.duration)&&i>=this.host.duration){this.stop(),this.host.stalled=!1;const e=this.host.asyncId;return void Lc(this.host.events,()=>!this.closed&&this.host.asyncId===e,["ended","pause","canplay"])}if(this.host.nextFrame&&this.host.nextFrame.timestamp<=i){if(this.draw(this.host.nextFrame),this.host.nextFrame=null,this.request(e),this.host.stalled){if(Lc(this.host.events,t,["canplay","playing"]),!t())return;this.host.stalled=!1}}else this.host.nextFrame||(this.request(e),Number.isFinite(this.host.duration)&&i<this.host.duration&&!this.host.stalled&&(this.host.stalled=!0,this.host.events.emit("waiting")));this.schedule(e)}else this.schedule(e)}start(e){this.closed||(this.stop(),this.stopped=!1,this.host.audioClock=e,this.host.stalled=!1,this.host.nextFrame||this.request(this.host.asyncId),this.schedule(this.host.asyncId))}stop(){this.stopped=!0,this.host.asyncId++,this.cancelFrame(),this.fetching=null,this.host.isFetching=!1}destroy(){this.closed||(this.stop(),this.closed=!0)}}class sl{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:a=.12,dropLateFrames:s=!1,poster:n="",preflightRange:o=!1,onError:c}){N(this,P),N(this,m,0),N(this,p,0),N(this,g,null),N(this,k,null),N(this,y,null),N(this,b,!1),N(this,w,!1),N(this,T,new rl),N(this,S),N(this,v),this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=a,this.dropLateFrames=s,this.poster=n,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1,O(this,v,c),O(this,S,new al(this,()=>!D(this,w),e=>L(this,P,E).call(this,e,!0),e=>L(this,P,C).call(this,e)))}async preflight(e,t,i){return async function(e,t,i,r,a=()=>!0){if(r?.aborted||!a())return!1;if(!t||"string"!==typeof e||Xc(e))return!0;try{const t=await fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if(r?.aborted||!a())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!(r?.aborted||!a())&&(console.warn("Preflight check failed:",s),!0)}}(e,this.preflightRange,this.events,t,i)}drawPoster(){if(D(this,b)||!this.poster||this.posterDrawn)return;const e=D(this,m);D(this,T).draw(this.poster,()=>L(this,P,I).call(this,e),e=>{this.clear(),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,L(this,P,x).call(this).drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e=>L(this,P,C).call(this,e))}async stopIterator(){const e=this.videoIterator;this.videoIterator=null,this.nextFrame=null,await function(e){if(!e)return Promise.resolve();const t=Zc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.return()).then(()=>{});return Zc.set(e,i),i}(e)}clear(){L(this,P,x).call(this).clearRect(0,0,this.canvas.width,this.canvas.height)}cancelPending(){z(this,m)._++,z(this,p)._++,this.stop(),L(this,P,B).call(this),D(this,T).cancel(),O(this,w,!1),O(this,g,null),O(this,k,null),O(this,y,null),this.videoSink=null,this.input=null}async load(e,t){if(D(this,b))return;this.cancelPending();const i=D(this,m),r=D(this,p);O(this,w,!0);const a=Promise.resolve().then(()=>L(this,P,_).call(this,e,i,r,t));O(this,g,a);try{await a}finally{D(this,g)===a&&O(this,g,null)}}handleNoVideoTrack(){D(this,b)||(this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster())}async resetIterator(e){if(D(this,b))return;const t=D(this,m),i=++z(this,p)._,r=D(this,g);this.stop(),D(this,T).cancel(),O(this,w,!0);try{r&&await r,await L(this,P,R).call(this,e,t,i)}catch(a){if(L(this,P,I).call(this,t)&&D(this,p)===i)throw L(this,P,B).call(this),a}finally{L(this,P,I).call(this,t)&&D(this,p)===i&&O(this,w,!1)}}async updateNextFrame(e){await D(this,S).update(e)}render(){D(this,S).render()}start(e){D(this,S).start(e)}stop(){D(this,S).stop()}async seek(e){await this.resetIterator(e)}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){D(this,b)||(O(this,b,!0),z(this,m)._++,D(this,S).destroy(),D(this,T).cancel(),L(this,P,B).call(this),this.posterDrawn=!1,O(this,k,null),O(this,y,null),this.videoSink=null,this.input=null,this.audioClock=null)}}m=new WeakMap,p=new WeakMap,g=new WeakMap,k=new WeakMap,y=new WeakMap,b=new WeakMap,w=new WeakMap,T=new WeakMap,S=new WeakMap,v=new WeakMap,P=new WeakSet,I=function(e){return!D(this,b)&&D(this,m)===e},x=function(){if(!this.ctx)throw new Error("Canvas 2D context is unavailable.");return this.ctx},C=function(e){D(this,b)||(L(this,P,B).call(this),D(this,v)?D(this,v).call(this,e):this.events.emit("error",e))},B=function(){this.stopIterator().catch(e=>console.warn("MediaBunny iterator cleanup error:",e))},E=function(e,t){D(this,T).cancel(),t&&this.clear(),L(this,P,x).call(this).drawImage(e.canvas,0,0)},_=async function(e,t,i,r){if(L(this,P,I).call(this,t))try{this.clear(),this.posterDrawn=!1;const{input:a,videoTrack:s,duration:n}=e;if(this.input=a,this.duration=n,!s)return this.handleNoVideoTrack(),void r?.();const o=null!==s.codec&&await s.canDecode();if(!L(this,P,I).call(this,t))return;if(!o)return this.handleNoVideoTrack(),void r?.();const c=await s.canBeTransparent();if(!L(this,P,I).call(this,t))return;O(this,k,()=>new Fo(s,{poolSize:2,fit:"contain",alpha:c})),this.videoSink=D(this,k).call(this),this.width=s.displayWidth,this.height=s.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,r?.(),L(this,P,I).call(this,t)&&await L(this,P,R).call(this,0,t,i)}catch(a){if(L(this,P,I).call(this,t))throw L(this,P,B).call(this),a}finally{L(this,P,I).call(this,t)&&D(this,p)===i&&O(this,w,!1)}},R=async function(e,t,i){if(!L(this,P,I).call(this,t)||D(this,p)!==i)return;L(this,P,B).call(this),D(this,k)&&this.videoSink===D(this,y)&&(this.videoSink=D(this,k).call(this));const r=this.videoSink;if(!r||!L(this,P,I).call(this,t))return;O(this,y,r);const a=r.canvases(e);this.videoIterator=a;const s=()=>L(this,P,I).call(this,t)&&D(this,p)===i&&this.videoIterator===a,n=await tl(a);if(!s())return;const o=await tl(a);s()&&(this.nextFrame=o,n?L(this,P,E).call(this,n,!1):this.drawPoster())};class nl{constructor({canvas:e,ctx:t,events:i,option:r={}}){N(this,F),this.events=i,this.option=r,this.audio=new Uc(i,e=>{try{this.pause()}catch(t){console.warn("MediaBunny audio coordinator cleanup:",t)}this.reportError(e)}),this.video=new sl({canvas:e,ctx:t,events:i,timeupdateInterval:r.timeupdateInterval??250,avSyncTolerance:r.avSyncTolerance??.12,dropLateFrames:r.dropLateFrames??!1,poster:r.poster??"",preflightRange:r.preflightRange??!1,onError:e=>{try{this.pause()}catch(t){console.warn("MediaBunny video failure cleanup:",t)}this.reportError(e)}}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,O(this,F,new Jc(this)),i.addEventListener("ended",()=>{this.destroyed||(this.ended=!0,this.paused=!0,D(this,F).ended(),this.audio.pause())})}async load(e){if(this.destroyed)return;const t=++this.loadSeq;if(D(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),this.loadSession?.cancel(),t!==this.loadSeq||this.destroyed)return;if(this.pause(),t!==this.loadSeq||this.destroyed)return;this.disposeInput();const i=new Gc;this.loadSession=i,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,i.defer(()=>this.events.emit("waiting")),i.defer(()=>this.events.emit("loadstart"));const r=Number.isFinite(this.option.loadTimeout)?this.option.loadTimeout??0:0;try{await i.wait(this.performLoad(e,t,i),r)}catch(a){if(t!==this.loadSeq)return;const e=++this.loadSeq;if(D(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),i.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.reportError(a)}}async performLoad(e,t,i=this.loadSession){const r=()=>!this.destroyed&&t===this.loadSeq;if(!i||!(await this.video.preflight(e,i.signal,r))||!r())return;const a=$c(e);if(!a)return this.video.handleNoVideoTrack(),void(r()&&this.audio.handleNoAudioTrack());i.own(a);const s=await async function(e,t){const i=await e.getPrimaryVideoTrack(),r=i?await i.getPrimaryPairableAudioTrack():await e.getPrimaryAudioTrack(),a=await Qc({input:e,videoTrack:i,audioTrack:r}),s=i||r,n=Xc(t);return{input:e,videoTrack:i,audioTrack:r,duration:a,isLive:!Number.isFinite(a)&&Boolean(s&&await s.isLive()),isHls:n,videoMode:n?"auto":"manual",audioMode:n?"auto":"manual"}}(a,e);if(!r())return;if(!s.videoTrack&&!s.audioTrack)throw this.video.handleNoVideoTrack(),this.video.duration=Number.NaN,this.audio.duration=Number.NaN,new Error("Input has no audio or video tracks.");this.input=a,this.media=s;const n=function(e,t){let i=!1,r=!1,a=!1;function s(s){t()&&!a&&("video"===s?i=!0:r=!0,i&&r&&(a=!0,e()))}return{video:()=>s("video"),audio:()=>s("audio")}}(()=>{Oc(this),this.readyState=1,Lc(this.events,r,["loadedmetadata","durationchange","progress"])},r);try{const e=this.video.load(s,n.video),t=r()?this.audio.load(s,n.audio):Promise.resolve();if(await Promise.all([e,t]),!r())return;Oc(this),this.readyState=4,this.networkState=1,Lc(this.events,r,["loadeddata","canplay","canplaythrough","progress"])}catch(o){if(!r())return;throw console.error("MediaBunny load error:",o),o}}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){this.loadSession?.disposeInput(),this.input=null,this.media=null}async replaceTracks(e){if(this.media&&!this.destroyed)return D(this,F).replace({...this.media,...e},this.currentTime)}async selectHlsQuality(e){return function(e,t){return Wc(e,t,Hc)}(this,e)}async selectHlsAudio(e){return function(e,t){return Wc(e,t,Vc)}(this,e)}async getHlsState(){const e=this.media,t=this.loadSeq;if(this.destroyed)return null;try{const i=await async function(e){if(!e?.isHls||!e.input)return null;const[t,i]=await Promise.all([e.input.getVideoTracks(),e.videoTrack?e.videoTrack.getPairableAudioTracks():[]]),[r,a]=await Promise.all([Promise.all(t.map(async(e,t)=>({id:e.id,track:e,index:t,name:await e.getName(),height:await e.getDisplayHeight(),bitrate:await jc(e)}))),Promise.all(i.map(async(e,t)=>{const i=await e.getName(),r=await e.getLanguageCode();return{id:e.id,track:e,index:t,name:i,lang:r,language:r,bitrate:await jc(e)}}))]);return{levels:r,audios:a,currentLevel:e.videoTrack?r.find(t=>t.id===e.videoTrack?.id)??null:null,currentAudio:e.audioTrack?a.find(t=>t.id===e.audioTrack?.id)??null:null,videoMode:e.videoMode??"auto",audioMode:e.audioMode??"auto"}}(e);return this.destroyed||this.loadSeq!==t||this.media!==e?null:i}catch(i){if(this.destroyed||this.loadSeq!==t||this.media!==e)return null;throw i}}async play(){return D(this,F).play()}pause(){D(this,F).pause()}async seek(e){return D(this,F).seek(e)}setVolume(e,t){this.audio.setVolume(e,t)}setPlaybackRate(e){this.audio.setPlaybackRate(e),this.video.setPlaybackRate(e)}reportError(e){if(this.destroyed)return;const t=e&&"object"===typeof e?Reflect.get(e,"message"):void 0;this.error={code:4,message:"string"===typeof t?t:String(e)},this.networkState=3,this.events.emit("error")}destroy(){if(this.destroyed)return;this.destroyed=!0,this.loadSeq++,D(this,F).invalidate();const e=[];for(const i of[()=>this.loadSession?.cancel(),()=>this.pause(),()=>this.disposeInput(),()=>this.audio.destroy(),()=>this.video.destroy()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}get currentTime(){return this.audio.currentTime}get duration(){return this.media?.duration??this.audio.duration??this.video.duration}get videoWidth(){return this.video.width}get videoHeight(){return this.video.height}}F=new WeakMap;const ol=new WeakMap;function cl(e){let t=ol.get(e);return t||(t={closed:!1,frames:new Set},ol.set(e,t)),t}class ll{constructor({art:e,canvas:t,ctx:i,option:r}){this.art=e,this.canvas=t,this.option=r,this.events=new V,this.engine=new nl({canvas:t,ctx:i,events:this.events,option:r}),this._src=null,this._volume=r.volume??.7,this._muted=!!r.muted,this._playbackRate=1,this.engine.setVolume(this._volume,this._muted),this.setupEventForwarding(),r.source?this.src=r.source:e.option?.url&&(this.src=e.option.url)}setupEventForwarding(){const{events:e}=this.art.constructor.config;e.forEach(e=>{this.events.addEventListener(e,e=>{this.art.emit(`video:${e.type}`,e)})})}addEventListener(e,t){this.events.addEventListener(e,t)}removeEventListener(e,t){this.events.removeEventListener(e,t)}get src(){return this._src}set src(e){this._src=e,e&&this.engine.load(e)}get currentSrc(){return this._src}get currentTime(){return this.engine.currentTime}set currentTime(e){Promise.resolve(this.engine.seek(Number(e)||0)).catch(()=>{})}get duration(){return this.engine.duration}get buffered(){return this.createTimeRanges(0,this.engine.duration)}get played(){return this.createTimeRanges(0,this.engine.currentTime)}get seekable(){return this.createTimeRanges(0,this.engine.duration)}createTimeRanges(e,t){return function(e,t,i){return!e||Number.isNaN(e)||i<=0?{length:0,start:()=>0,end:()=>0}:{length:1,start:()=>t,end:()=>i}}(this.engine.duration,e,t)}get paused(){return this.engine.paused}get playing(){return!this.engine.paused&&!this.engine.ended}get ended(){return this.engine.ended}get seeking(){return this.engine.seeking}get readyState(){return this.engine.readyState}get networkState(){return this.engine.networkState}get error(){return this.engine.error}get playbackRate(){return this._playbackRate}set playbackRate(e){const t=Number(e);Number.isNaN(t)||t<=0||(this._playbackRate=t,this.engine.setPlaybackRate(t),this.events.emit("ratechange"))}get volume(){return this._volume}set volume(e){var t;this._volume=(t=e,Math.max(0,Math.min(1,Number(t)||0))),this._muted=!1,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}get muted(){return this._muted}set muted(e){this._muted=!!e,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}play(){return this.engine.play()}pause(){this.engine.pause()}load(){this._src&&this.engine.load(this._src)}getM3u8State(){return this.engine.getHlsState()}switchM3u8Quality(e){return this.engine.selectHlsQuality(e)}switchM3u8Audio(e){return this.engine.selectHlsAudio(e)}get videoWidth(){return this.engine.videoWidth}get videoHeight(){return this.engine.videoHeight}get poster(){return this.option.poster||""}set poster(e){this.option.poster=e}get autoplay(){return this.option.autoplay||!1}set autoplay(e){}get loop(){return this.option.loop||!1}set loop(e){}get controls(){return!1}set controls(e){}get playsInline(){return!0}set playsInline(e){}get crossOrigin(){return this.option.crossOrigin||""}set crossOrigin(e){}get preload(){return"auto"}set preload(e){}get defaultMuted(){return!1}set defaultMuted(e){}get defaultPlaybackRate(){return 1}set defaultPlaybackRate(e){}canPlayType(e){return"maybe"}getBoundingClientRect(){return this.canvas.getBoundingClientRect()}requestVideoFrameCallback(e){return function(e,t){const i=cl(e);if(i.closed)return 0;const r=requestAnimationFrame(a=>{i.frames.delete(r),i.closed||t(a,{presentationTime:e.engine.currentTime,expectedDisplayTime:a+16.6,width:e.engine.videoWidth,height:e.engine.videoHeight,mediaTime:e.engine.currentTime,presentedFrames:0,processingDuration:0,captureTime:a,receiveTime:a,rtpTimestamp:0})});return i.frames.add(r),r}(this,e)}cancelVideoFrameCallback(e){!function(e,t){cl(e).frames.delete(t),cancelAnimationFrame(t)}(this,e)}setAttribute(e,t){"src"===e?this.src=t:"autoplay"===e?this.autoplay=t:"loop"===e?this.loop=t:"muted"===e?this.muted=!0:Reflect.apply(this.canvas.setAttribute,this.canvas,[e,t])}destroy(){if(function(e){const t=cl(e);if(t.closed)return!1;t.closed=!0;for(const i of t.frames)cancelAnimationFrame(i);return t.frames.clear(),!0}(this))try{this.engine.destroy()}finally{this.events.destroy()}}}function ul(e={}){return t=>{const i=t,{createElement:r}=i.constructor.utils,a=r("canvas"),s=new ll({art:i,canvas:a,ctx:a.getContext("2d"),option:e}),n=function(e,t,i,r){let a,s=!1;function n(){s||!e.template?.$player||e.option.autoSize||Object.assign(t.style,{width:"100%",height:"100%",objectFit:"contain"})}function o(){s||(s=!0,U([()=>a?.destroy(),()=>{e.mediabunny===i&&delete e.mediabunny},()=>i.destroy(),()=>e.off?.("resize",n),()=>e.off?.("video:loadedmetadata",n),()=>e.off?.("destroy",o)]))}return{install:function(){e.on("resize",n),e.on("video:loadedmetadata",n),a=H({art:e,shim:i,option:r}),e.on("destroy",o)},destroy:o}}(i,a,s,e);try{i.mediabunny=s,function(e,t){const i=new Map,r=e,a=t;for(const n in e)if("function"===typeof r[n]){const t=r[n];i.set(n,t.bind(e))}const s=new Set([...Object.getOwnPropertyNames(t),...Object.getOwnPropertyNames(Object.getPrototypeOf(t))]);for(const n of s)"constructor"===n||n in e||Object.defineProperty(e,n,{get(){const e=a[n];return"function"===typeof e?e.bind(t):e},set(e){a[n]=e},configurable:!0,enumerable:!0});for(const[n,o]of i)r[n]=(...e)=>o(...e)}(a,s),n.install()}catch(o){try{n.destroy()}catch(c){console.warn("MediaBunny entry setup cleanup:",c)}throw o}return a}}return Object.defineProperty(ul,"default",{value:ul,writable:!0,configurable:!0}),ul});
diff --git a/docs/compiled/artplayer-proxy-mediabunny.legacy.js b/docs/compiled/artplayer-proxy-mediabunny.legacy.js
index d8f8db571..fda5de103 100644
--- a/docs/compiled/artplayer-proxy-mediabunny.legacy.js
+++ b/docs/compiled/artplayer-proxy-mediabunny.legacy.js
@@ -4,4 +4,4 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
-!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerProxyMediabunny=t(),define(function(){return e.artplayerProxyMediabunny})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerProxyMediabunny=t()}(this,function(){"use strict";var e,t,i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F,A=Object.defineProperty,M=Object.defineProperties,D=Object.getOwnPropertyDescriptors,N=Object.getOwnPropertySymbols,O=Object.prototype.hasOwnProperty,L=Object.prototype.propertyIsEnumerable,z=(e,t)=>(t=Symbol[e])?t:Symbol.for("Symbol."+e),U=e=>{throw TypeError(e)},q=Math.pow,W=(e,t,i)=>t in e?A(e,t,{enumerable:!0,configurable:!0,writable:!0,value:i}):e[t]=i,H=(e,t)=>{for(var i in t||(t={}))O.call(t,i)&&W(e,i,t[i]);if(N)for(var i of N(t))L.call(t,i)&&W(e,i,t[i]);return e},V=(e,t)=>M(e,D(t)),j=(e,t,i)=>t.has(e)||U("Cannot "+i),K=(e,t,i)=>(j(e,t,"read from private 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B=r.pos;if(r.readBits(1)){if(r.readBits(1)){const e=r.readBits(8);if(255===e)S={num:r.readBits(16),den:r.readBits(16)};else{const t=Yt[e];t&&(S=t)}}r.readBits(1)&&r.skipBits(1);if(r.readBits(1)){r.skipBits(3),w=r.readBits(1);r.readBits(1)&&(b=r.readBits(8),T=r.readBits(8),v=r.readBits(8))}r.readBits(1)&&(ue(r),ue(r));r.readBits(1)&&(r.skipBits(32),r.skipBits(32),r.skipBits(1));const e=r.readBits(1);e&&Zt(r);const t=r.readBits(1);t&&Zt(r),(e||t)&&r.skipBits(1),r.skipBits(1),x=r.pos,C=r.readBits(1),C&&(r.skipBits(1),ue(r),ue(r),ue(r),ue(r),P=ue(r),I=ue(r))}if(null===P){oe(null===I);if(44!==n&&86!==n&&100!==n&&110!==n&&122!==n&&244!==n||!(16&s)){const e=h+1,i=(2-y)*(f+1),r=null!=(t=Gi.find(e=>e.level>=a))?t:ce(Gi),n=Math.min(Math.floor(r.maxDpbMbs/(e*i)),16);P=n,I=n}else P=0,I=0}return oe(null!==I),{emulationUnpreventedBytes:i,profileIdc:n,constraintFlags:s,levelIdc:a,frameMbsOnlyFlag:y,chromaFormatIdc:o,bitDepthLumaMinus8:l,bitDepthChromaMinus8:c,codedWidth:m,codedHeight:p,displayWidth:g,displayHeight:k,pixelAspectRatio:S,colourPrimaries:b,matrixCoefficients:v,transferCharacteristics:T,fullRangeFlag:w,numReorderFrames:P,maxDecFrameBuffering:I,vuiParametersFlagBitOffset:B,bitstreamRestrictionFlagBitOffset:x,bitstreamRestrictionFlag:C}}catch(i){return Pt._error("Error parsing AVC SPS:",i),null}},Zt=e=>{const t=ue(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)ue(e),ue(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},ei=e=>{oe(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new Bt(e.emulationUnpreventedBytes),r=new Bt(t);null===e.bitstreamRestrictionFlag?(r.copyBits(e.vuiParametersFlagBitOffset,i),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(oe(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),de(r,2),de(r,1),de(r,16),de(r,16),de(r,e.numReorderFrames),de(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const n=r.pos/8;return oe(Number.isInteger(n)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,n))},ti=(e,t)=>{if(t.description){const i=3&fe(t.description)[21];return qt(e,i+1)}return Ut(e)},ii=e=>e>>1&63,ri=e=>{try{const t=new Bt(Vt(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:n,general_tier_flag:s,general_profile_idc:a,general_profile_compatibility_flags:o,general_constraint_indicator_flags:l,general_level_idc:c}=si(t,i);ue(t);const u=ue(t);let d=0;3===u&&(d=t.readBits(1));const h=ue(t),f=ue(t);let m=h,p=f;if(t.readBits(1)){const e=ue(t),i=ue(t),r=ue(t),n=ue(t);let s=1,a=1;const o=0===d?u:0;1===o?(s=2,a=2):2===o&&(s=2,a=1),m-=(e+i)*s,p-=(r+n)*a}const g=ue(t),k=ue(t);ue(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)ue(t),b=ue(t),ue(t);ue(t),ue(t),ue(t),ue(t),ue(t),ue(t),t.readBits(1)&&t.readBits(1)&&ai(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),ue(t),ue(t),t.skipBits(1));const T=ue(t);if(oi(t,T),t.readBits(1)){const e=ue(t);for(let i=0;i<e;i++)ue(t),t.skipBits(1)}t.skipBits(1),t.skipBits(1);let v=2,w=2,S=2,P=0,I=0,x={num:1,den:1};if(t.readBits(1)){const e=ci(t,i);x=e.pixelAspectRatio,v=e.colourPrimaries,w=e.transferCharacteristics,S=e.matrixCoefficients,P=e.fullRangeFlag,I=e.minSpatialSegmentationIdc}return{displayWidth:m,displayHeight:p,pixelAspectRatio:x,colourPrimaries:v,transferCharacteristics:w,matrixCoefficients:S,fullRangeFlag:P,maxDecFrameBuffering:b+1,spsMaxSubLayersMinus1:i,spsTemporalIdNestingFlag:r,generalProfileSpace:n,generalTierFlag:s,generalProfileIdc:a,generalProfileCompatibilityFlags:o,generalConstraintIndicatorFlags:l,generalLevelIdc:c,chromaFormatIdc:u,bitDepthLumaMinus8:g,bitDepthChromaMinus8:k,minSpatialSegmentationIdc:I}}catch(t){return Pt._error("Error parsing HEVC SPS:",t),null}},ni=e=>{try{const t=[],i=[],r=[],n=[];for(const l of Ut(e)){const s=e.subarray(l.offset,l.offset+l.length),a=ii(s[0]);a===Lt.VPS_NUT?t.push(s):a===Lt.SPS_NUT?i.push(s):a===Lt.PPS_NUT?r.push(s):a!==Lt.PREFIX_SEI_NUT&&a!==Lt.SUFFIX_SEI_NUT||n.push(s)}if(0===i.length||0===r.length)return null;const s=ri(i[0]);if(!s)return null;let a=0;if(r.length>0){const e=r[0],t=new Bt(Vt(e));t.skipBits(16),ue(t),ue(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),ue(t),ue(t),he(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&ue(t),he(t),he(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),n=t.readBits(1);a=i||n?i&&!n?2:!i&&n?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:Lt.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Lt.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Lt.PPS_NUT,nalUnits:r}]:[],...n.length?[{arrayCompleteness:1,nalUnitType:ii(n[0][0]),nalUnits:n}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:a,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return Pt._error("Error building HEVC Decoder Configuration Record:",t),null}},si=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),n=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const a=new Uint8Array(6);for(let u=0;u<6;u++)a[u]=e.readBits(8);const o=e.readBits(8),l=[],c=[];for(let u=0;u<t;u++)l.push(e.readBits(1)),c.push(e.readBits(1));if(t>0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u<t;u++)l[u]&&e.skipBits(88),c[u]&&e.skipBits(8);return{general_profile_space:i,general_tier_flag:r,general_profile_idc:n,general_profile_compatibility_flags:s,general_constraint_indicator_flags:a,general_level_idc:o}},ai=e=>{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&he(e);for(let t=0;t<i;t++)he(e)}else ue(e)}},oi=(e,t)=>{const i=[];for(let r=0;r<t;r++)i[r]=li(e,r,t,i)},li=(e,t,i,r)=>{var n;let s=0,a=0,o=0;if(0!==t&&(a=e.readBits(1)),a){if(t===i){o=t-(ue(e)+1)}else o=t-1;e.readBits(1),ue(e);const a=null!=(n=r[o])?n:0;for(let 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r=!1,n=!1,s=!1;r=1===e.readBits(1),n=1===e.readBits(1),(r||n)&&(s=1===e.readBits(1),s&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),s&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5));for(let a=0;a<=i;a++){let t=!0;1===e.readBits(1)||(t=1===e.readBits(1));let i=!1;t?ue(e):i=1===e.readBits(1);let a=1;if(!i){a=ue(e)+1}r&&di(e,a,s),n&&di(e,a,s)}},di=(e,t,i)=>{for(let r=0;r<t;r++)ue(e),ue(e),i&&(ue(e),ue(e)),e.readBits(1)};var hi,fi;(fi=hi||(hi={}))[fi.audAllowed=0]="audAllowed",fi[fi.beforeFirstVcl=1]="beforeFirstVcl",fi[fi.afterFirstVcl=2]="afterFirstVcl",fi[fi.eoBitstreamAllowed=3]="eoBitstreamAllowed",fi[fi.noMoreDataAllowed=4]="noMoreDataAllowed";const mi=(e,t)=>{const i=new Set;let r=hi.audAllowed;for(const s of ti(e,t)){if(r===hi.noMoreDataAllowed){i.add(s.offset);continue}const t=ii(e[s.offset]);if(r===hi.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let n=!1;35===t?r>hi.audAllowed?n=!0:r=hi.beforeFirstVcl:t<=31?r>hi.afterFirstVcl?n=!0:r=hi.afterFirstVcl:36===t?r!==hi.afterFirstVcl?n=!0:r=hi.eoBitstreamAllowed:37===t?r<hi.afterFirstVcl?n=!0:r=hi.noMoreDataAllowed:32===t||33===t||34===t||39===t||t>=41&&t<=44||t>=48&&t<=55?r>hi.beforeFirstVcl?n=!0:r=hi.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r<hi.afterFirstVcl&&(n=!0),n&&i.add(s.offset)}if(0===i.size)return null;const n=[];for(const s of ti(e,t))i.has(s.offset)||n.push(e.subarray(s.offset,s.offset+s.length));return((e,t)=>{if(t.description){const i=3&fe(t.description)[21];return Xt(e,i+1)}return Kt(e)})(n,t)},pi={1:{colourPrimaries:5,transferCharacteristics:6,matrixCoefficients:5},2:{colourPrimaries:1,transferCharacteristics:1,matrixCoefficients:1},3:{colourPrimaries:6,transferCharacteristics:6,matrixCoefficients:6},4:{colourPrimaries:7,transferCharacteristics:7,matrixCoefficients:7},5:{colourPrimaries:9,transferCharacteristics:14,matrixCoefficients:9},7:{colourPrimaries:1,transferCharacteristics:13,matrixCoefficients:0}},gi=e=>{var t,i,r;const n=new Bt(e);if(2!==n.readBits(2))return null;const s=n.readBits(1),a=(n.readBits(1)<<1)+s;3===a&&n.skipBits(1);if(1===n.readBits(1))return null;if(0!==n.readBits(1))return null;n.skipBits(2);if(4817730!==n.readBits(24))return null;let o=8;if(a>=2){o=n.readBits(1)?12:10}const l=n.readBits(3);let c=0,u=0;if(7!==l){if(u=n.readBits(1),1===a||3===a){const e=n.readBits(1),t=n.readBits(1);c=e||t?e&&!t?2:1:3,n.skipBits(1)}else c=1}else c=3,u=1;const d=(n.readBits(16)+1)*(n.readBits(16)+1);let h=ce(Qi).level;for(const m of Qi)if(d<=m.maxPictureSize){h=m.level;break}const f=pi[l];return{profile:a,level:h,bitDepth:o,chromaSubsampling:c,videoFullRangeFlag:u,colourPrimaries:null!=(t=null==f?void 0:f.colourPrimaries)?t:2,transferCharacteristics:null!=(i=null==f?void 0:f.transferCharacteristics)?i:2,matrixCoefficients:null!=(r=null==f?void 0:f.matrixCoefficients)?r:2}},ki=function*(e){const t=new Bt(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*q(2,7*i),!(128&r))break;if(7===i&&128&r)return null}return e>q(2,32)-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const r=t.readBits(4),n=t.readBits(1),s=t.readBits(1);let a;if(t.skipBits(1),n&&t.skipBits(8),s){const e=i();if(null===e)return;a=e}else a=Math.floor(t.getBitsLeft()/8);oe(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+a)},t.skipBits(8*a)}},yi=e=>{for(const{type:t,data:i}of ki(e)){if(1!==t)continue;const e=new Bt(i),r=e.readBits(3);e.readBits(1);const n=e.readBits(1);let s=0,a=0,o=0;if(n)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let t=0;for(;t<32&&!e.readBits(1);)t++;t<32&&e.skipBits(t)}t=e.readBits(1),t&&(o=e.readBits(5),e.skipBits(32),e.skipBits(5),e.skipBits(5))}const i=e.readBits(1),r=e.readBits(5);for(let n=0;n<=r;n++){e.skipBits(12);const r=e.readBits(5);if(0===n&&(s=r),r>7){const t=e.readBits(1);0===n&&(a=t)}if(t){if(e.readBits(1)){const t=o+1;e.skipBits(t),e.skipBits(t),e.skipBits(1)}}if(i){e.readBits(1)&&e.skipBits(4)}}}const l=e.readBits(4),c=e.readBits(4),u=l+1;e.skipBits(u);const d=c+1;e.skipBits(d);let h=0;if(h=n?0:e.readBits(1),h&&(e.skipBits(4),e.skipBits(3)),e.skipBits(1),e.skipBits(1),e.skipBits(1),!n){e.skipBits(1),e.skipBits(1),e.skipBits(1),e.skipBits(1);const t=e.readBits(1);t&&(e.skipBits(1),e.skipBits(1));let i=0;if(i=e.readBits(1)?2:e.readBits(1),i>0){e.readBits(1)||e.skipBits(1)}t&&e.skipBits(3)}e.skipBits(1),e.skipBits(1),e.skipBits(1);const f=e.readBits(1);let m=8;if(2===r&&f){m=e.readBits(1)?12:10}else r<=2&&(m=f?10:8);let p=0;1!==r&&(p=e.readBits(1));let g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,T=1,v=1,w=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,T=0,v=0):(b=e.readBits(1),0===r?(T=1,v=1):1===r?(T=0,v=0):12===m?(T=e.readBits(1),v=T?e.readBits(1):0):(T=1,v=0),T&&v&&(w=e.readBits(2))),{profile:r,level:s,tier:a,bitDepth:m,monochrome:p,chromaSubsamplingX:T,chromaSubsamplingY:v,chromaSamplePosition:w,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},bi=e=>{if(e.length<36)return null;const t=me(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},Ti=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],vi=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in Setup header.");if("vorbis"!==String.fromCharCode(...e.slice(1,7)))throw new Error("Invalid packet signature in Setup header.");const t=e.length,i=new Uint8Array(t);for(let u=0;u<t;u++)i[u]=e[t-1-u];const r=new Bt(i);let n=0;for(;r.getBitsLeft()>97;)if(1===r.readBits(1)){n=r.pos;break}if(0===n)throw new Error("Invalid Setup header: framing bit not found.");let s=0,a=!1,o=0;for(;r.getBitsLeft()>=97;){const e=r.pos,t=r.readBits(8),i=r.readBits(16),n=r.readBits(16);if(t>63||0!==i||0!==n){r.pos=e;break}if(r.skipBits(1),s++,s>64)break;r.clone().readBits(6)+1===s&&(a=!0,o=s)}if(!a)throw new Error("Invalid Setup header: mode header not found.");if(o>63)throw new Error(`Unsupported mode count: ${o}.`);const l=o;r.pos=0,r.skipBits(n);const c=Array(l).fill(0);for(let u=l-1;u>=0;u--)r.skipBits(40),c[u]=r.readBits(1);return{modeBlockflags:c}},wi=(e,t,i)=>{switch(e){case"avc":for(const e of Wt(i,t)){const t=i[e.offset],r=Ht(t);if(r>=Nt.NON_IDR_SLICE&&r<=Nt.SLICE_DPC)return"delta";if(r===Nt.IDR)return"key";if(r===Nt.SEI&&!at()){const t=i.subarray(e.offset,e.offset+e.length),r=Vt(t);let n=1;do{let e=0;for(;;){const t=r[n++];if(void 0===t)break;if(e+=t,t<255)break}let t=0;for(;;){const e=r[n++];if(void 0===e)break;if(t+=e,e<255)break}if(e===6){const e=new Bt(r);e.pos=8*n;const t=ue(e),i=e.readBits(1);if(0===t&&1===i)return"key"}n+=t}while(n<r.length-1)}}return"delta";case"hevc":for(const e of ti(i,t)){const t=ii(i[e.offset]);if(t<Lt.BLA_W_LP)return"delta";if(t<=Lt.RSV_IRAP_VCL23)return"key"}return"delta";case"vp8":return 0===(1&i[0])?"key":"delta";case"vp9":{const e=new Bt(i);if(2!==e.readBits(2))return null;const t=e.readBits(1);3===(e.readBits(1)<<1)+t&&e.skipBits(1);if(e.readBits(1))return null;return 0===e.readBits(1)?"key":"delta"}case"av1":{let e=!1;for(const{type:t,data:r}of ki(i))if(1===t){const t=new Bt(r);t.skipBits(4),e=!!t.readBits(1)}else if(3===t||6===t||7===t){if(e)return"key";const t=new Bt(r);if(t.readBits(1))return null;return 0===t.readBits(2)?"key":"delta"}return null}case"prores":return"key";default:Oe(e),oe(!1)}};var Si,Pi;(Pi=Si||(Si={}))[Pi.STREAMINFO=0]="STREAMINFO",Pi[Pi.VORBIS_COMMENT=4]="VORBIS_COMMENT",Pi[Pi.PICTURE=6]="PICTURE";const Ii=(e,t)=>{var i,r;const n=me(e);let s=0;const a=n.getUint32(s,!0);s+=4;const o=pe.decode(e.subarray(s,s+a));s+=a,a>0&&(null!=t.raw||(t.raw={}),null!=(i=t.raw).vendor||(i.vendor=o));const l=n.getUint32(s,!0);s+=4;for(let c=0;c<l;c++){const i=n.getUint32(s,!0);s+=4;const a=pe.decode(e.subarray(s,s+i));s+=i;const o=a.indexOf("=");if(-1===o)continue;const l=a.slice(0,o).toUpperCase(),c=a.slice(o+1);switch(null!=t.raw||(t.raw={}),Array.isArray(t.raw[l])?t.raw[l]=[...t.raw[l],c]:"string"===typeof t.raw[l]?t.raw[l]=[t.raw[l],c]:null!=(r=t.raw)[l]||(r[l]=c),l){case"TITLE":null!=t.title||(t.title=c);break;case"DESCRIPTION":null!=t.description||(t.description=c);break;case"ARTIST":null!=t.artist||(t.artist=c);break;case"ALBUM":null!=t.album||(t.album=c);break;case"ALBUMARTIST":null!=t.albumArtist||(t.albumArtist=c);break;case"COMMENT":null!=t.comment||(t.comment=c);break;case"LYRICS":null!=t.lyrics||(t.lyrics=c);break;case"TRACKNUMBER":{const e=c.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=t.trackNumber||(t.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.tracksTotal||(t.tracksTotal=r))}break;case"TRACKTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.tracksTotal||(t.tracksTotal=e))}break;case"DISCNUMBER":{const e=c.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=t.discNumber||(t.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.discsTotal||(t.discsTotal=r))}break;case"DISCTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.discsTotal||(t.discsTotal=e))}break;case"DATE":{const e=new Date(c);Number.isNaN(e.getTime())||null!=t.date||(t.date=e)}break;case"GENRE":null!=t.genre||(t.genre=c);break;case"METADATA_BLOCK_PICTURE":{const e=ht(c),i=me(e),r=i.getUint32(0,!1),n=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+n)),a=i.getUint32(8+n,!1),o=pe.decode(e.subarray(12+n,12+n+a)),l=i.getUint32(n+a+28),u=e.subarray(n+a+32,n+a+32+l);null!=t.images||(t.images=[]),t.images.push({data:u,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},xi=[2,1,2,3,3,4,4,5],Ci=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new Bt(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),n=t.readBits(5);if(n>8)return null;const s=t.readBits(3),a=t.readBits(3);0!==(1&a)&&1!==a&&t.skipBits(2),0!==(4&a)&&t.skipBits(2),2===a&&t.skipBits(2);return{fscod:i,bsid:n,bsmod:s,acmod:a,lfeon:t.readBits(1),bitRateCode:Math.floor(r/2)}},Bi=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,576,384,418,576,448,486,672,448,488,672,512,556,768,512,558,768,640,696,960,640,698,960,768,834,1152,768,836,1152,896,974,1344,896,976,1344,1024,1114,1536,1024,1116,1536,1280,1392,1920,1280,1394,1920,1536,1670,2304,1536,1672,2304,1792,1950,2688,1792,1952,2688,2048,2228,3072,2048,2230,3072,2304,2506,3456,2304,2508,3456,2560,2786,3840,2560,2788,3840],Ei=[1,2,3,6],_i=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new Bt(e);t.skipBits(16);const i=t.readBits(2);if(t.skipBits(3),0!==i&&2!==i)return null;const r=t.readBits(11),n=t.readBits(2);let s,a=0;3===n?(a=t.readBits(2),s=3):s=t.readBits(2);const o=t.readBits(3),l=t.readBits(1),c=t.readBits(5);if(c<11||c>16)return null;const u=Ei[s];let d;d=n<3?Mt[n]/1e3:Dt[a]/1e3;return{dataRate:Math.round((r+1)*d/(16*u)),substreams:[{fscod:n,fscod2:a,bsid:c,bsmod:0,acmod:o,lfeon:l,numDepSub:0,chanLoc:0}]}},Ri=e=>{const t=e.substreams[0];return oe(t),t.fscod<3?Mt[t.fscod]:null!==t.fscod2&&t.fscod2<3?Dt[t.fscod2]:null},Fi=e=>{const t=e.substreams[0];oe(t);let i=xi[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let r=0;r<9;r++)t.chanLoc&1<<8-r&&(i+=e[r])}return i},Ai=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],Mi=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],Di=[16,16,20,20,0,24,24,0],Ni=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],Oi=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],Li=[32e3,44100,48e3,0],zi=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],Ui=[512,1024,2048,4096],qi=e=>{const t=Hi(e),i=me(e);let r=t?4*Math.ceil(t.frameSize/4):0,n=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=Vi(e.subarray(r));if(!t)break;null!=n||(n=t),r+=t.frameSize}if(t)return{frameSize:n?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==n};if(!(null==n?void 0:n.asset))return null;const{asset:s}=n;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},Wi=e=>{const t=qi(e);return(null==t?void 0:t.core)?t.hasExtensions?"dtsh":"dtsc":null},Hi=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new Bt(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const n=t.readBits(14)+1;if(n<96)return null;const s=t.readBits(6);if(s>=Ni.length)return null;const a=Ai[t.readBits(4)];if(0===a)return null;const o=Mi[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const l=t.readBits(2);if(3===l)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const c=Di[t.readBits(3)];if(0===c)return null;const u=0!==l;return{frameSize:n,sampleRate:a,numberOfChannels:Ni[s]+(u?1:0),sampleCount:32*r,channelLayout:Oi[s]|(u?8:0),amode:s,lfePresent:u,bitRate:o,pcmResolution:c}},Vi=e=>{if(e.length<10)return null;if(100!==e[0]||88!==e[1]||32!==e[2]||37!==e[3])return null;const t=new Bt(e);t.skipBits(32),t.skipBits(8);const i=t.readBits(2),r=t.readBits(1),n=8+4*r,s=16+4*r;t.skipBits(n);const a=t.readBits(s)+1,o={frameSize:a,asset:null};if(!t.readBits(1))return o;const l=Li[t.readBits(2)],c=512*(t.readBits(3)+1);t.readBits(1)&&t.skipBits(36);const u=t.readBits(3)+1,d=t.readBits(3)+1,h=[];for(let k=0;k<u;k++)h.push(t.readBits(i+1));for(const k of h)t.skipBits(8*Xe(k));if(t.readBits(1)){t.skipBits(2);const e=t.readBits(2)+1<<2,i=t.readBits(2)+1;t.skipBits(i*e)}for(let k=0;k<d;k++)t.skipBits(s);t.skipBits(9),t.skipBits(3),t.readBits(1)&&t.skipBits(4),t.readBits(1)&&t.skipBits(24),t.readBits(1)&&t.skipBits(8*(t.readBits(10)+1));const f=t.readBits(5)+1,m=zi[t.readBits(4)],p=t.readBits(8)+1;let g=0;if(t.readBits(1)&&(p>2&&t.skipBits(1),p>6&&t.skipBits(1),t.readBits(1))){const e=t.readBits(2)+1<<2;g=t.readBits(e)}return 0===l||t.getBitsLeft()<0?o:{frameSize:a,asset:{sampleRate:m,numberOfChannels:p,sampleCount:Math.round(c*m/l),channelLayout:g,pcmResolution:f}}},ji=e=>Xe(e)+Xe(44646&e),Ki=["avc","hevc","vp9","av1","vp8","prores"],Xi=["pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be","pcm-u8","pcm-s8","ulaw","alaw"],$i=["aac","opus","mp3","vorbis","flac","ac3","eac3","dts",...Xi],Gi=[{maxMacroblocks:99,maxBitrate:64e3,maxDpbMbs:396,level:10},{maxMacroblocks:396,maxBitrate:192e3,maxDpbMbs:900,level:11},{maxMacroblocks:396,maxBitrate:384e3,maxDpbMbs:2376,level:12},{maxMacroblocks:396,maxBitrate:768e3,maxDpbMbs:2376,level:13},{maxMacroblocks:396,maxBitrate:2e6,maxDpbMbs:2376,level:20},{maxMacroblocks:792,maxBitrate:4e6,maxDpbMbs:4752,level:21},{maxMacroblocks:1620,maxBitrate:4e6,maxDpbMbs:8100,level:22},{maxMacroblocks:1620,maxBitrate:1e7,maxDpbMbs:8100,level:30},{maxMacroblocks:3600,maxBitrate:14e6,maxDpbMbs:18e3,level:31},{maxMacroblocks:5120,maxBitrate:2e7,maxDpbMbs:20480,level:32},{maxMacroblocks:8192,maxBitrate:2e7,maxDpbMbs:32768,level:40},{maxMacroblocks:8192,maxBitrate:5e7,maxDpbMbs:32768,level:41},{maxMacroblocks:8704,maxBitrate:5e7,maxDpbMbs:34816,level:42},{maxMacroblocks:22080,maxBitrate:135e6,maxDpbMbs:110400,level:50},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:51},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:52},{maxMacroblocks:139264,maxBitrate:24e7,maxDpbMbs:696320,level:60},{maxMacroblocks:139264,maxBitrate:48e7,maxDpbMbs:696320,level:61},{maxMacroblocks:139264,maxBitrate:8e8,maxDpbMbs:696320,level:62}],Qi=[{maxPictureSize:36864,maxBitrate:2e5,level:10},{maxPictureSize:73728,maxBitrate:8e5,level:11},{maxPictureSize:122880,maxBitrate:18e5,level:20},{maxPictureSize:245760,maxBitrate:36e5,level:21},{maxPictureSize:552960,maxBitrate:72e5,level:30},{maxPictureSize:983040,maxBitrate:12e6,level:31},{maxPictureSize:2228224,maxBitrate:18e6,level:40},{maxPictureSize:2228224,maxBitrate:3e7,level:41},{maxPictureSize:8912896,maxBitrate:6e7,level:50},{maxPictureSize:8912896,maxBitrate:12e7,level:51},{maxPictureSize:8912896,maxBitrate:18e7,level:52},{maxPictureSize:35651584,maxBitrate:18e7,level:60},{maxPictureSize:35651584,maxBitrate:24e7,level:61},{maxPictureSize:35651584,maxBitrate:48e7,level:62}],Yi=".01.01.01.01.00",Ji=".0.110.01.01.01.0",Zi=["ap4x","ap4h","apch","apcn","apcs","apco"],er=["dtsc","dtsh","dtsl","dtse"],tr=e=>{const{codec:t,codecDescription:i,colorSpace:r,avcCodecInfo:n,hevcCodecInfo:s,vp9CodecInfo:a,av1CodecInfo:o,proresFormat:l}=e;if("avc"===t){if(oe(null!==e.avcType),n){const t=new Uint8Array([n.avcProfileIndication,n.profileCompatibility,n.avcLevelIndication]);return`avc${e.avcType}.${Be(t)}`}if(!i||i.byteLength<4)throw new TypeError("AVC decoder description is not provided or is not at least 4 bytes long.");return`avc${e.avcType}.${Be(i.subarray(1,4))}`}if("hevc"===t){let e,t,r,n,a,o;if(s)e=s.generalProfileSpace,t=s.generalProfileIdc,r=Ee(s.generalProfileCompatibilityFlags),n=s.generalTierFlag,a=s.generalLevelIdc,o=[...s.generalConstraintIndicatorFlags];else{if(!i||i.byteLength<23)throw new TypeError("HEVC decoder description is not provided or is not at least 23 bytes long.");const s=me(i),l=s.getUint8(1);e=l>>6&3,t=31&l,r=Ee(s.getUint32(2)),n=l>>5&1,a=s.getUint8(12),o=[];for(let e=0;e<6;e++)o.push(s.getUint8(6+e))}let l="hev1.";for(l+=["","A","B","C"][e]+t,l+=".",l+=r.toString(16).toUpperCase(),l+=".",l+=0===n?"L":"H",l+=a;o.length>0&&0===o[o.length-1];)o.pop();return o.length>0&&(l+=".",l+=o.map(e=>e.toString(16).toUpperCase()).join(".")),l}if("vp8"===t)return"vp8";if("vp9"===t){if(!a){const t=e.width*e.height;let i=ce(Qi).level;for(const e of Qi)if(t<=e.maxPictureSize){i=e.level;break}return`vp09.00.${i.toString().padStart(2,"0")}.08`}let t=`vp09.${a.profile.toString().padStart(2,"0")}.${a.level.toString().padStart(2,"0")}.${a.bitDepth.toString().padStart(2,"0")}.${a.chromaSubsampling.toString().padStart(2,"0")}`;return t+=`.${a.colourPrimaries.toString().padStart(2,"0")}.${a.transferCharacteristics.toString().padStart(2,"0")}.${a.matrixCoefficients.toString().padStart(2,"0")}.${a.videoFullRangeFlag.toString().padStart(2,"0")}`,t.endsWith(Yi)&&(t=t.slice(0,-15)),t}if("av1"===t){if(!o){const t=e.width*e.height;let i=ce(Qi).level;for(const e of Qi)if(t<=e.maxPictureSize){i=e.level;break}return`av01.0.${i.toString().padStart(2,"0")}M.08`}const t=o.profile,i=o.level.toString().padStart(2,"0"),n=o.tier?"H":"M",s=o.bitDepth.toString().padStart(2,"0"),a=o.monochrome?"1":"0",l=100*o.chromaSubsamplingX+10*o.chromaSubsamplingY+1*(o.chromaSubsamplingX&&o.chromaSubsamplingY?o.chromaSamplePosition:0),c=(null==r?void 0:r.primaries)?ke[r.primaries]:1,u=(null==r?void 0:r.transfer)?be[r.transfer]:1,d=(null==r?void 0:r.matrix)?ve[r.matrix]:1,h=(null==r?void 0:r.fullRange)?1:0;let f=`av01.${t}.${i}${n}.${s}`;return f+=`.${a}.${l.toString().padStart(3,"0")}`,f+=`.${c.toString().padStart(2,"0")}`,f+=`.${u.toString().padStart(2,"0")}`,f+=`.${d.toString().padStart(2,"0")}`,f+=`.${h}`,f.endsWith(Ji)&&(f=f.slice(0,-17)),f}if("prores"===t)return null!=l?l:"apch";throw null!==t&&Oe(t),new TypeError(`Unhandled codec '${t}'.`)},ir=e=>{var t,i,r,n,s,a;switch(e.codec){case"avc":{let r=null==(t=e.avcCodecInfo)?void 0:t.sequenceParameterSets[0];if(!r&&e.codecDescription&&(r=null==(i=Qt(e.codecDescription))?void 0:i.sequenceParameterSets[0]),r){const e=Jt(r);if(e)return{primaries:ye[e.colourPrimaries],transfer:Te[e.transferCharacteristics],matrix:we[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"hevc":{let t=null==(n=null==(r=e.hevcCodecInfo)?void 0:r.arrays.find(e=>e.nalUnitType===Lt.SPS_NUT))?void 0:n.nalUnits[0];if(!t&&e.codecDescription&&(t=null==(a=null==(s=(e=>{try{const t=me(e);let i=0;const r=t.getUint8(i++),n=t.getUint8(i++),s=n>>6&3,a=n>>5&1,o=31&n,l=t.getUint32(i,!1);i+=4;const c=e.subarray(i,i+6);i+=6;const u=t.getUint8(i++),d=(15&t.getUint8(i++))<<8|t.getUint8(i++),h=3&t.getUint8(i++),f=3&t.getUint8(i++),m=7&t.getUint8(i++),p=7&t.getUint8(i++),g=t.getUint16(i,!1);i+=2;const k=t.getUint8(i++),y=k>>6&3,b=k>>3&7,T=k>>2&1,v=3&k,w=t.getUint8(i++),S=[];for(let P=0;P<w;P++){const r=t.getUint8(i++),n=r>>7&1,s=63&r,a=t.getUint16(i,!1);i+=2;const o=[];for(let l=0;l<a;l++){const r=t.getUint16(i,!1);i+=2,o.push(e.subarray(i,i+r)),i+=r}S.push({arrayCompleteness:n,nalUnitType:s,nalUnits:o})}return{configurationVersion:r,generalProfileSpace:s,generalTierFlag:a,generalProfileIdc:o,generalProfileCompatibilityFlags:l,generalConstraintIndicatorFlags:c,generalLevelIdc:u,minSpatialSegmentationIdc:d,parallelismType:h,chromaFormatIdc:f,bitDepthLumaMinus8:m,bitDepthChromaMinus8:p,avgFrameRate:g,constantFrameRate:y,numTemporalLayers:b,temporalIdNested:T,lengthSizeMinusOne:v,arrays:S}}catch(t){return Pt._error("Error deserializing HEVC Decoder Configuration Record:",t),null}})(e.codecDescription))?void 0:s.arrays.find(e=>e.nalUnitType===Lt.SPS_NUT))?void 0:a.nalUnits[0]),t){const e=ri(t);if(e)return{primaries:ye[e.colourPrimaries],transfer:Te[e.transferCharacteristics],matrix:we[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"vp8":break;case"vp9":if(e.vp9CodecInfo)return{primaries:ye[e.vp9CodecInfo.colourPrimaries],transfer:Te[e.vp9CodecInfo.transferCharacteristics],matrix:we[e.vp9CodecInfo.matrixCoefficients],fullRange:!!e.vp9CodecInfo.videoFullRangeFlag};break;case"av1":if(e.av1CodecInfo)return{primaries:ye[e.av1CodecInfo.colourPrimaries],transfer:Te[e.av1CodecInfo.transferCharacteristics],matrix:we[e.av1CodecInfo.matrixCoefficients],fullRange:!!e.av1CodecInfo.videoFullRangeFlag};break;case"prores":if(e.proresCodecInfo)return{primaries:ye[e.proresCodecInfo.colourPrimaries],transfer:Te[e.proresCodecInfo.transferCharacteristics],matrix:we[e.proresCodecInfo.matrixCoefficients],fullRange:e.proresCodecInfo.fullRange}}return{primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0}},rr=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:n}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=Rt(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return null!=n?n:"dtsc";if(t&&Xi.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},nr=48e3,sr=/^pcm-([usf])(\d+)(be)?$/,ar=e=>{if(oe(Xi.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=sr.exec(e);let i;oe(t),i="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:i,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?q(2,7):0}},or=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":Zi.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":er.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":sr.test(e)?e:"webvtt"===e?"webvtt":null,lr=[44100,48e3,32e3],cr=[-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,32,40,48,56,64,80,96,112,128,160,192,224,256,320,-1,-1,32,48,56,64,80,96,112,128,160,192,224,256,320,384,-1,-1,32,64,96,128,160,192,224,256,288,320,352,384,416,448,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,32,48,56,64,80,96,112,128,144,160,176,192,224,256,-1],ur=1483304551,dr=1231971951,hr=(e,t)=>3===e?3===t?21:36:3===t?13:21,fr=(e,t)=>{const i=e>>>24,r=e>>>16&255,n=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==n&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let a=0,o=0;16&r?a=8&r?0:1:(a=1,o=1);const l=r>>3&3,c=r>>1&3,u=(n>>2&3)%3,d=s>>6&3,h=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=cr[16*a*4+16*c+(n>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=lr[u]>>a+o,b=((e,t,i,r,n)=>0===t?0:1===t?Math.floor(144*i/(r<<e))+n:2===t?Math.floor(144*i/r)+n:4*(Math.floor(12*i/r)+n))(a,c,k,y,n>>1&1);if(null!==t&&t<b)return{header:null,bytesAdvanced:1};let T;return T=3===l?3===c?384:1152:3===c?384:2===c?1152:576,{header:{totalSize:b,mpegVersionId:l,lowSamplingFrequency:a,layer:c,bitrate:k,frequencyIndex:u,sampleRate:y,channel:d,modeExtension:h,copyright:f,original:m,emphasis:p,audioSamplesInFrame:T},bytesAdvanced:1}},mr=e=>{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var pr,gr;(gr=pr||(pr={}))[gr.FrameCount=1]="FrameCount",gr[gr.FileSize=2]="FileSize",gr[gr.Toc=4]="Toc";const kr=e=>3===e?1:2;class yr{constructor(e){this.input=e}dispose(){}}const br=new Uint8Array(0);class Tr{constructor(e,t,i,r,n=-1,s,a){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=n,e===br&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(n))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==a&&("object"!==typeof a||!a))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==(null==a?void 0:a.alpha)&&!(a.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==(null==a?void 0:a.alphaByteLength)&&(!Number.isInteger(a.alphaByteLength)||a.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=null!=a?a:{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===br}get microsecondTimestamp(){return Math.trunc(Qe*this.timestamp)}get microsecondDuration(){return Math.trunc(Qe*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){var i;if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const r=new Uint8Array(e.byteLength);return e.copyTo(r),new Tr(r,e.type,e.timestamp/1e6,(null!=(i=e.duration)?i:0)/1e6,void 0,void 0,t)}clone(e){var t,i,r,n,s,a;if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==(null==e?void 0:e.data)&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==(null==e?void 0:e.type)&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==(null==e?void 0:e.timestamp)&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==(null==e?void 0:e.duration)&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sequenceNumber)&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sideData)&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new Tr(null!=(t=null==e?void 0:e.data)?t:this.data,null!=(i=null==e?void 0:e.type)?i:this.type,null!=(r=null==e?void 0:e.timestamp)?r:this.timestamp,null!=(n=null==e?void 0:e.duration)?n:this.duration,null!=(s=null==e?void 0:e.sequenceNumber)?s:this.sequenceNumber,this.byteLength,null!=(a=null==e?void 0:e.sideData)?a:this.sideData)}}const vr=e=>{const t=me(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const n=Be(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;t<r;t++)s.push(Be(e.subarray(i,i+16))),i+=16}}const a=t.getUint32(i);return i+=4,{systemId:n,keyIds:s,data:e.slice(i,i+a)}},wr=(e,t)=>e.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i<e.length;i++)if(e[i]!==t[i])return!1;return!0})(e.data,t.data),Sr=e=>{let t=Cl(e);const i=Nl(e,4);let r=8;1===t&&(t=Rl(e),r=16);const n=t-r;return n<0?null:{name:i,totalSize:t,headerSize:r,contentSize:n}},Pr=e=>El(e)/65536,Ir=e=>El(e)/1073741824,xr=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=vl(e);if(t|=127&i,0===(128&i))break}return t},Cr=e=>{let t=Sl(e);return e.skip(2),t=Math.min(t,e.remainingLength),pe.decode(Tl(e,t))},Br=e=>{const t=Sr(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=Cl(e);e.skip(4);const r=Tl(e,t.contentSize-8);switch(i){case 1:return pe.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new It(r,"image/jpeg");case 14:return new It(r,"image/png");case 27:return new It(r,"image/bmp");default:return r}},Er=16,_r=new Uint32Array(256),Rr=new Uint32Array(256),Fr=new Uint32Array(256),Ar=new Uint32Array(256),Mr=new Uint32Array(256),Dr=new Uint32Array(256),Nr=new Uint32Array(10);let Or=!1;class Lr{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Er/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Er),this.out=new Uint8Array(Er),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){oe(16===e.byteLength),oe(16===t.byteLength),Or||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,a=1;s<256;s++)i[s]=a,t[a]=s,a=a^a<<1^(128&a?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let n=r^r<<1^r<<2^r<<3^r<<4;n=n>>>8^255&n^99,e[s]=n}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);_r[s]=t<<24|t<<16|t<<8|t,Dr[s]=i<<24|i<<16|i<<8|i;const n=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);Rr[s]=n,Fr[s]=n>>>8|n<<24,Ar[s]=n>>>16|n<<16,Mr[s]=n>>>24|n<<8}let n=1;for(let s=0;s<10;s++)Nr[s]=n<<24,n=n<<1^(128&n?283:0);Or=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let n=4;n<44;n+=4){const e=this.roundkey[n-1];this.roundkey[n]=this.roundkey[n-4]^4278190080&_r[e>>>16&255]^16711680&_r[e>>>8&255]^65280&_r[e>>>0&255]^255&_r[e>>>24&255]^Nr[n/4-1],this.roundkey[n+1]=this.roundkey[n-3]^this.roundkey[n],this.roundkey[n+2]=this.roundkey[n-2]^this.roundkey[n+1],this.roundkey[n+3]=this.roundkey[n-1]^this.roundkey[n+2]}for(let n=0,s=40;n<s;n+=4,s-=4)for(let e=0;e<4;e++){const t=this.roundkey[n+e];this.roundkey[n+e]=this.roundkey[s+e],this.roundkey[s+e]=t}for(let n=4;n<40;n+=4)for(let e=0;e<4;e++){const t=this.roundkey[n+e];this.roundkey[n+e]=Rr[255&_r[t>>>24&255]]^Fr[255&_r[t>>>16&255]]^Ar[255&_r[t>>>8&255]]^Mr[255&_r[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const n=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),a=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let l,c,u,d;for(let g=1;g<10;g++){const n=4*g;l=Rr[e>>>24]^Fr[r>>>16&255]^Ar[i>>>8&255]^Mr[255&t]^this.roundkey[n],c=Rr[t>>>24]^Fr[e>>>16&255]^Ar[r>>>8&255]^Mr[255&i]^this.roundkey[n+1],u=Rr[i>>>24]^Fr[t>>>16&255]^Ar[e>>>8&255]^Mr[255&r]^this.roundkey[n+2],d=Rr[r>>>24]^Fr[i>>>16&255]^Ar[t>>>8&255]^Mr[255&e]^this.roundkey[n+3],e=l,t=c,i=u,r=d}const h=4278190080&Dr[e>>>24&255]^16711680&Dr[r>>>16&255]^65280&Dr[i>>>8&255]^255&Dr[t>>>0&255]^this.roundkey[40],f=4278190080&Dr[t>>>24&255]^16711680&Dr[e>>>16&255]^65280&Dr[r>>>8&255]^255&Dr[i>>>0&255]^this.roundkey[41],m=4278190080&Dr[i>>>24&255]^16711680&Dr[t>>>16&255]^65280&Dr[e>>>8&255]^255&Dr[r>>>0&255]^this.roundkey[42],p=4278190080&Dr[r>>>24&255]^16711680&Dr[i>>>16&255]^65280&Dr[t>>>8&255]^255&Dr[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,h^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=n,this.iv[1]=s,this.iv[2]=a,this.iv[3]=o}}class zr extends yr{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.tracks.map(e=>e.trackBacking)})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)}),hasAudio:this.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)}),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(ct(r)&&(r=yield r),!r)break;const n=e,s=Sr(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=Nl(r,4);this.isQuickTime="qt  "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(ct(e)&&(e=yield e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>n+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');yield this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=n+s.totalSize}if(!i&&this.input._initInput&&(yield this.copyMetadataFromInitInput(this.input._initInput)),t){oe(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);ct(e)&&(e=yield e),oe(e);const t=Cl(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(ct(e)&&(e=yield e),e){const t=Sr(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);ct(i)&&(i=yield i),i&&this.readContiguousBoxes(i)}}}}}))()}copyMetadataFromInitInput(e){return Y(this,null,function*(){const t=yield e._getDemuxer();if(t.constructor!==zr)throw new Error("Init input must match the input's format.");yield t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const e of t.tracks){const t={id:e.id,demuxer:this,trackBacking:null,disposition:e.disposition,timescale:e.timescale,durationInMediaTimescale:e.durationInMediaTimescale,durationInMovieTimescale:e.durationInMovieTimescale,rotation:e.rotation,internalCodecId:e.internalCodecId,name:e.name,languageCode:e.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:e.editListPreviousSegmentDurations,editListOffset:e.editListOffset,encryptionInfo:e.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:e.info};if(e.trackBacking)if(oe(t.info),"video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new qr(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new Wr(e),this.tracks.push(t)}}})}getSampleTableForTrack(e){var t,i;if(e.sampleTable)return e.sampleTable;const r={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=r,null===e.sampleTableByteOffset)return r;oe(this.moovSlice);const n=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(n),this.currentTrack=null;if("audio"===(null==(t=e.info)?void 0:t.type)&&e.info.codec&&Xi.includes(e.info.codec)&&0===r.sampleCompositionTimeOffsets.length){oe("audio"===(null==(i=e.info)?void 0:i.type));const t=ar(e.info.codec),n=[],s=[];for(let i=0;i<r.sampleToChunk.length;i++){const a=r.sampleToChunk[i],o=r.sampleToChunk[i+1],l=(o?o.startChunkIndex:r.chunkOffsets.length)-a.startChunkIndex;for(let i=0;i<l;i++){const o=a.startSampleIndex+i*a.samplesPerChunk,l=o+a.samplesPerChunk,c=Re(r.sampleTimingEntries,o,e=>e.startIndex),u=r.sampleTimingEntries[c],d=Re(r.sampleTimingEntries,l,e=>e.startIndex),h=r.sampleTimingEntries[d],f=u.startDecodeTimestamp+(o-u.startIndex)*u.delta,m=h.startDecodeTimestamp+(l-h.startIndex)*h.delta-f,p=ce(n);p&&p.delta===m?p.count++:n.push({startIndex:a.startChunkIndex+i,startDecodeTimestamp:f,count:1,delta:m});const g=a.samplesPerChunk*t.sampleSize*e.info.numberOfChannels;s.push(g)}a.startSampleIndex=a.startChunkIndex,a.samplesPerChunk=1}r.sampleTimingEntries=n,r.sampleSizes=s}if(r.sampleCompositionTimeOffsets.length>0){r.presentationTimestamps=[];for(const e of r.sampleTimingEntries)for(let t=0;t<e.count;t++)r.presentationTimestamps.push({presentationTimestamp:e.startDecodeTimestamp+t*e.delta,sampleIndex:e.startIndex+t});for(const e of r.sampleCompositionTimeOffsets)for(let t=0;t<e.count;t++){const i=e.startIndex+t,n=r.presentationTimestamps[i];n&&(n.presentationTimestamp+=e.offset)}r.presentationTimestamps.sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp),r.presentationTimestampIndexMap=Array(r.presentationTimestamps.length).fill(-1);for(let e=0;e<r.presentationTimestamps.length;e++)r.presentationTimestampIndexMap[r.presentationTimestamps[e].sampleIndex]=e}return r}readFragment(e){return Y(this,null,function*(){var t;if((null==(t=this.lastReadFragment)?void 0:t.moofOffset)===e)return this.lastReadFragment;let i=this.reader.requestSliceRange(e,8,16);ct(i)&&(i=yield i),oe(i);const r=Sr(i);oe("moof"===(null==r?void 0:r.name));let n=this.reader.requestSlice(e,r.totalSize);ct(n)&&(n=yield n),oe(n),this.traverseBox(n);const s=this.lastReadFragment;oe(s&&s.moofOffset===e);for(const[,e]of s.trackData){const t=e.track,{fragmentPositionCache:i}=t;if(!e.startTimestampIsFinal){const r=t.fragmentLookupTable.find(e=>e.moofOffset===s.moofOffset);if(r)Xr(e,r.timestamp);else{const t=Re(i,s.moofOffset-1,e=>e.moofOffset);if(-1!==t){const r=i[t];Xr(e,r.endTimestamp)}}e.startTimestampIsFinal=!0}const r=Re(i,e.startTimestamp,e=>e.startTimestamp);if(-1!==r&&i[r].moofOffset===s.moofOffset||i.splice(r+1,0,{moofOffset:s.moofOffset,startTimestamp:e.startTimestamp,endTimestamp:e.endTimestamp}),e.encryptionAuxInfo&&t.encryptionInfo){const i=yield Yr(this.reader,t.encryptionInfo,e.encryptionAuxInfo);for(let t=0;t<Math.min(e.samples.length,i.length);t++){const r=i[t];e.samples[t].encryption=r}}}return s})}readContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){if(!this.traverseBox(e))break}}*iterateContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){const t=e.filePos,i=Sr(e);if(!i)break;yield{boxInfo:i,slice:e},e.filePos=t+i.totalSize}}traverseBox(e){var t,i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F,A,M,D,N,O,L,z,U,q,W,j,K,X,$,G,Q,Y,J,Z,ee,te,ie;const re=e.filePos,ne=Sr(e);if(!ne)return!1;const se=e.filePos,ae=re+ne.totalSize;switch(ne.name){case"mdia":case"minf":case"dinf":case"mfra":case"edts":case"sinf":case"schi":case"wave":this.readContiguousBoxes(e.slice(se,ne.contentSize));break;case"mvhd":{const t=vl(e);e.skip(3),1===t?(e.skip(16),this.movieTimescale=Cl(e),this.movieDurationInTimescale=Rl(e)):(e.skip(8),this.movieTimescale=Cl(e),this.movieDurationInTimescale=Cl(e))}break;case"trak":{const t={id:-1,demuxer:this,trackBacking:null,disposition:V(H({},Ct),{primary:!1}),info:null,timescale:-1,durationInMovieTimescale:-1,durationInMediaTimescale:-1,rotation:0,internalCodecId:null,name:null,languageCode:We,sampleTableByteOffset:-1,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:0,editListOffset:0,encryptionInfo:null,encryptionAuxInfo:null,frmaCodecString:null};if(this.currentTrack=t,this.readContiguousBoxes(e.slice(se,ne.contentSize)),-1!==t.id&&-1!==t.timescale&&null!==t.info)if("video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new qr(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new Wr(e),this.tracks.push(t)}this.currentTrack=null}break;case"tkhd":{const t=this.currentTrack;if(!t)break;const i=vl(e),r=!!(1&Pl(e));if(t.disposition.default=r,0===i)e.skip(8),t.id=Cl(e),e.skip(4),t.durationInMovieTimescale=Cl(e);else{if(1!==i)throw new Error(`Incorrect track header version ${i}.`);e.skip(16),t.id=Cl(e),e.skip(4),t.durationInMovieTimescale=Rl(e)}e.skip(16);const n=[Pr(e),Pr(e),Ir(e),Pr(e),Pr(e),Ir(e),Pr(e),Pr(e),Ir(e)],s=le(Ve($r(n),90));oe(0===s||90===s||180===s||270===s),t.rotation=s}break;case"elst":{const t=this.currentTrack;if(!t)break;const i=vl(e);e.skip(3);let r=!1,n=0;const s=Cl(e);for(let a=0;a<s;a++){const s=1===i?Rl(e):Cl(e),a=1===i?Fl(e):El(e),o=Pr(e);if(r){Pt._warn("Unsupported edit list: multiple edits are not currently supported. Only using first edit.");break}if(-1!==a){if(1!==o){Pt._warn("Unsupported edit list entry: media rate must be 1.");break}t.editListPreviousSegmentDurations=n,t.editListOffset=a,r=!0}else n+=s}}break;case"mdhd":{const t=this.currentTrack;if(!t)break;const i=vl(e);e.skip(3),0===i?(e.skip(8),t.timescale=Cl(e),t.durationInMediaTimescale=Cl(e)):1===i&&(e.skip(16),t.timescale=Cl(e),t.durationInMediaTimescale=Rl(e));let r=Sl(e);if(r>0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;Ge(t.languageCode)||(t.languageCode=We)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=Nl(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:H({},Pe),avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=re,this.readContiguousBoxes(e.slice(se,ne.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=vl(e);e.skip(3);const r=Cl(e);for(let n=0;n<r;n++){const r=e.filePos,n=Sr(e);if(!n)break;t.internalCodecId=n.name;const s=n.name.toLowerCase();if("video"===t.info.type){e.skip(24),t.info.width=Sl(e),t.info.height=Sl(e),t.info.squarePixelWidth=t.info.width,t.info.squarePixelHeight=t.info.height,e.skip(50),t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const i="encv"===s?t.frmaCodecString:s;t.frmaCodecString=null,"avc1"===i||"avc3"===i?(t.info.codec="avc",t.info.avcType="avc1"===i?1:3):"hvc1"===i||"hev1"===i?t.info.codec="hevc":"vp08"===i?t.info.codec="vp8":"vp09"===i?t.info.codec="vp9":"av01"===i?t.info.codec="av1":Zi.includes(s)?(t.info.codec="prores",t.info.proresFormat=s):null===i?Pt._warn("Unknown encrypted video codec due to missing frma box."):Pt._warn(`Unsupported video codec (sample entry type '${n.name}').`)}else{e.skip(8);const a=Sl(e);e.skip(6);let o=Sl(e),l=Sl(e);e.skip(4);let c=Cl(e)/65536,u=null;0===i&&a>0&&(1===a?(e.skip(4),l=8*Cl(e),e.skip(8)):2===a&&(e.skip(4),c=Dl(e),o=Cl(e),e.skip(4),l=Cl(e),u=Cl(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=c,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const d="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===d);else if("opus"===d)t.info.codec="opus",t.info.sampleRate=nr;else if("flac"===d)t.info.codec="flac";else if("ulaw"===d)t.info.codec="ulaw";else if("alaw"===d)t.info.codec="alaw";else if("ac-3"===d)t.info.codec="ac3";else if("ec-3"===d)t.info.codec="eac3";else if(er.includes(d))t.info.codec="dts",t.info.dtsFormat=d;else if("twos"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(Pt._warn(`Unsupported sample size ${l} for codec 'twos'.`),t.info.codec=null);else if("sowt"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec="pcm-s16":(Pt._warn(`Unsupported sample size ${l} for codec 'sowt'.`),t.info.codec=null);else if("raw "===d)t.info.codec="pcm-u8";else if("in24"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(Pt._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(Pt._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(Pt._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(Pt._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=l+7>>3,i=Boolean(1&u),r=Boolean(2&u),n=4&u?-1:0;l>0&&l<=64&&(i?32===l&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):n&1<<e-1?1===e?t.info.codec="pcm-s8":2===e?t.info.codec=r?"pcm-s16be":"pcm-s16":3===e?t.info.codec=r?"pcm-s24be":"pcm-s24":4===e&&(t.info.codec=r?"pcm-s32be":"pcm-s32"):1===e&&(t.info.codec="pcm-u8")),null===t.info.codec&&Pt._warn("Unsupported PCM format.")}else null===d?Pt._warn("Unknown encrypted audio codec due to missing frma box."):Pt._warn(`Unsupported audio codec (sample entry type '${n.name}').`)}e.filePos=r+n.totalSize}}break;case"frma":{const t=this.currentTrack;if(!t)break;const i=Nl(e,4).toLowerCase();t.frmaCodecString=i}break;case"schm":{const t=this.currentTrack;if(!t)break;e.skip(4);const i=Nl(e,4);"cenc"===i||"cens"===i||"cbcs"===i?t.encryptionInfo={scheme:i,defaultKid:null,defaultIsProtected:null,defaultPerSampleIvSize:null,defaultConstantIv:null,defaultCryptByteBlock:null,defaultSkipByteBlock:null}:Pt._warn(`Unsupported encryption scheme '${i}'.`)}break;case"tenc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=vl(e);e.skip(3),e.skip(1);const r=vl(e);if(i>0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==vl(e),t.encryptionInfo.defaultPerSampleIvSize=vl(e),t.encryptionInfo.defaultKid=Be(Tl(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=vl(e),r=new Uint8Array(16);r.set(Tl(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(oe(t.info),0===ne.contentSize)break;t.info.codecDescription=Tl(e,ne.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(oe(t.info),0===ne.contentSize)break;t.info.codecDescription=Tl(e,ne.contentSize)}break;case"vpcC":{const i=this.currentTrack;if(!i)break;oe("video"===(null==(t=i.info)?void 0:t.type)),e.skip(4);const r=vl(e),n=vl(e),s=vl(e),a=s>>4,o=s>>1&7,l=1&s,c=vl(e),u=vl(e),d=vl(e);i.info.vp9CodecInfo={profile:r,level:n,bitDepth:a,chromaSubsampling:o,videoFullRangeFlag:l,colourPrimaries:c,transferCharacteristics:u,matrixCoefficients:d}}break;case"av1C":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(i=t.info)?void 0:i.type)),e.skip(1);const o=vl(e),l=o>>5,c=31&o,u=vl(e),d=u>>7,h=u>>6&1,f=u>>4&1,m=u>>3&1,p=u>>2&1,g=3&u,k=2===l&&h?u>>5&1?12:10:h?10:8;e.skip(1);const y=Tl(e,ne.contentSize-4),b=yi(y);t.info.av1CodecInfo={profile:l,level:c,tier:d,bitDepth:k,monochrome:f,chromaSubsamplingX:m,chromaSubsamplingY:p,chromaSamplePosition:g,videoFullRangeFlag:null!=(r=null==b?void 0:b.videoFullRangeFlag)?r:0,colourPrimaries:null!=(n=null==b?void 0:b.colourPrimaries)?n:2,transferCharacteristics:null!=(s=null==b?void 0:b.transferCharacteristics)?s:2,matrixCoefficients:null!=(a=null==b?void 0:b.matrixCoefficients)?a:2}}break;case"colr":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(o=t.info)?void 0:o.type));const i=Nl(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=Sl(e),n=Sl(e),s=Sl(e);let a;"nclx"===i&&(a=Boolean(128&vl(e))),t.info.colorSpace={primaries:ye[r],transfer:Te[n],matrix:we[s],fullRange:a}}break;case"pasp":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(l=t.info)?void 0:l.type));const i=Cl(e),r=Cl(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==(null==(c=t.info)?void 0:c.type))break;e.skip(4);oe(3===vl(e)),xr(e),e.skip(2);const i=vl(e),r=0!==(64&i),n=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=vl(e);e.skip(t)}n&&e.skip(2);oe(4===vl(e));const s=xr(e),a=e.filePos,o=vl(e);if(64===o||103===o?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===o,objectType:null}):105===o||107===o?t.info.codec="mp3":221===o?t.info.codec="vorbis":169===o?t.info.codec="dts":Pt._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-a){oe(5===vl(e));const i=xr(e);if(t.info.codecDescription=Tl(e,i),"aac"===t.info.codec){const e=Rt(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(u=t.info)?void 0:u.type)),t.info.pcmLittleEndian=!!(255&Sl(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(d=t.info)?void 0:d.type)),e.skip(4);const i=vl(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=vl(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(h=t.info)?void 0:h.type)),e.skip(1);const i=vl(e),r=Sl(e),n=Cl(e),s=Il(e),a=vl(e);let o;o=0!==a?Tl(e,2+i):new Uint8Array(0);const l=new Uint8Array(19+o.byteLength),c=new DataView(l.buffer);c.setUint32(0,1332770163,!1),c.setUint32(4,1214603620,!1),c.setUint8(8,1),c.setUint8(9,i),c.setUint16(10,r,!0),c.setUint32(12,n,!0),c.setInt16(16,s,!0),c.setUint8(18,a),l.set(o,19),t.info.codecDescription=l,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(f=t.info)?void 0:f.type)),e.skip(4);const i=127,r=128,n=e.filePos;for(;e.filePos<ae;){const n=vl(e),s=Pl(e);if((n&i)===Si.STREAMINFO){e.skip(10);const i=Cl(e),r=i>>>12,n=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=n,e.skip(20)}else e.skip(s);if(n&r)break}const s=e.filePos;e.filePos=n;const a=Tl(e,s-n),o=new Uint8Array(4+a.byteLength);new DataView(o.buffer).setUint32(0,1716281667,!1),o.set(a,4),t.info.codecDescription=o}break;case"dac3":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(m=t.info)?void 0:m.type));const i=Tl(e,3),r=new Bt(i),n=r.readBits(2);r.skipBits(8);const s=r.readBits(3),a=r.readBits(1);n<3&&(t.info.sampleRate=Mt[n]),t.info.numberOfChannels=xi[s]+a}break;case"dec3":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(p=t.info)?void 0:p.type));const i=(e=>{if(e.length<2)return null;const t=new Bt(e),i=t.readBits(13),r=t.readBits(3),n=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),a=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let l=0;o>0?l=t.readBits(9):t.skipBits(1),n.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:a,numDepSub:o,chanLoc:l})}return 0===n.length?null:{dataRate:i,substreams:n}})(Tl(e,ne.contentSize));if(!i){Pt._warn("Invalid dec3 box contents, ignoring.");break}const r=Ri(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=Fi(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(g=t.info)?void 0:g.type));const i=(e=>{if(e.length<20)return null;const t=me(e),i=t.getUint32(0);if(0===i)return null;const r=new Bt(e);r.seekToByte(13);const n=r.readBits(2);r.skipBits(5);const s=r.readBits(1),a=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let l=null;return 0!==o?l=ji(o):a<Ni.length&&(l=Ni[a]+s),{sampleRate:i,maxBitrate:t.getUint32(4),avgBitrate:t.getUint32(8),pcmSampleDepth:e[12],sampleCount:Ui[n],channelLayout:o,numberOfChannels:l}})(Tl(e,Math.min(ne.contentSize,20)));if(!i){Pt._warn("Invalid ddts box contents, ignoring.");break}t.info.sampleRate=i.sampleRate,null!==i.numberOfChannels&&(t.info.numberOfChannels=i.numberOfChannels)}break;case"stts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);let r=0,n=0;for(let s=0;s<i;s++){const i=Cl(e),s=Cl(e);t.sampleTable.sampleTimingEntries.push({startIndex:r,startDecodeTimestamp:n,count:i,delta:s}),r+=i,n+=i*s}}break;case"ctts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);let r=0;for(let n=0;n<i;n++){const i=Cl(e),n=El(e);t.sampleTable.sampleCompositionTimeOffsets.push({startIndex:r,count:i,offset:n}),r+=i}}break;case"stsz":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e),r=Cl(e);if(0===i)for(let n=0;n<r;n++){const i=Cl(e);t.sampleTable.sampleSizes.push(i)}else t.sampleTable.sampleSizes.push(i)}break;case"stz2":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),e.skip(3);const i=vl(e),r=Cl(e),n=Tl(e,Math.ceil(r*i/8)),s=new Bt(n);for(let e=0;e<r;e++){const e=s.readBits(i);t.sampleTable.sampleSizes.push(e)}}break;case"stss":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),t.sampleTable.keySampleIndices=[];const i=Cl(e);for(let r=0;r<i;r++){const i=Cl(e)-1;t.sampleTable.keySampleIndices.push(i)}0!==t.sampleTable.keySampleIndices[0]&&t.sampleTable.keySampleIndices.unshift(0)}break;case"stsc":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let n=0;n<i;n++){const i=Cl(e)-1,r=Cl(e),n=Cl(e);t.sampleTable.sampleToChunk.push({startSampleIndex:-1,startChunkIndex:i,samplesPerChunk:r,sampleDescriptionIndex:n})}let r=0;for(let e=0;e<t.sampleTable.sampleToChunk.length;e++)if(t.sampleTable.sampleToChunk[e].startSampleIndex=r,e<t.sampleTable.sampleToChunk.length-1){r+=(t.sampleTable.sampleToChunk[e+1].startChunkIndex-t.sampleTable.sampleToChunk[e].startChunkIndex)*t.sampleTable.sampleToChunk[e].samplesPerChunk}}break;case"stco":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let r=0;r<i;r++){const i=Cl(e);t.sampleTable.chunkOffsets.push(i)}}break;case"co64":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let r=0;r<i;r++){const i=Rl(e);t.sampleTable.chunkOffsets.push(i)}}break;case"mvex":this.isFragmented=!0,this.readContiguousBoxes(e.slice(se,ne.contentSize));break;case"mehd":{const t=vl(e);e.skip(3);const i=1===t?Rl(e):Cl(e);this.movieDurationInTimescale=i}break;case"trex":{e.skip(4);const t=Cl(e),i=Cl(e),r=Cl(e),n=Cl(e),s=Cl(e);this.fragmentTrackDefaults.push({trackId:t,defaultSampleDescriptionIndex:i,defaultSampleDuration:r,defaultSampleSize:n,defaultSampleFlags:s})}break;case"tfra":{const t=vl(e);e.skip(3);const i=Cl(e),r=this.tracks.find(e=>e.id===i);if(!r)break;const n=Cl(e),s=(12&n)>>2,a=3&n,o=[vl,Sl,Pl,Cl],l=o[(48&n)>>4],c=o[s],u=o[a],d=Cl(e);for(let h=0;h<d;h++){const i=1===t?Rl(e):Cl(e),n=1===t?Rl(e):Cl(e);l(e),c(e),u(e),r.fragmentLookupTable.push({timestamp:i,moofOffset:n})}r.fragmentLookupTable.sort((e,t)=>e.timestamp-t.timestamp);for(let e=0;e<r.fragmentLookupTable.length-1;e++){const t=r.fragmentLookupTable[e],i=r.fragmentLookupTable[e+1];t.timestamp===i.timestamp&&(r.fragmentLookupTable.splice(e+1,1),e--)}}break;case"moof":this.currentFragment={moofOffset:re,moofSize:ne.totalSize,implicitBaseDataOffset:re,trackData:new Map,psshBoxes:[]},this.readContiguousBoxes(e.slice(se,ne.contentSize)),this.lastReadFragment=this.currentFragment,this.currentFragment=null;break;case"traf":if(oe(this.currentFragment),this.readContiguousBoxes(e.slice(se,ne.contentSize)),this.currentTrack){const e=this.currentFragment.trackData.get(this.currentTrack.id);e:if(e){if(0===e.samples.length){this.currentFragment.trackData.delete(this.currentTrack.id);break e}e.presentationTimestamps=e.samples.map((e,t)=>({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let n=0;n<e.presentationTimestamps.length;n++){const t=e.presentationTimestamps[n],i=e.samples[t.sampleIndex];if(null===e.firstKeyFrameTimestamp&&i.isKeyFrame&&(e.firstKeyFrameTimestamp=i.presentationTimestamp),n<e.presentationTimestamps.length-1){const r=e.presentationTimestamps[n+1].presentationTimestamp-t.presentationTimestamp;i.duration=r}}const t=e.samples[e.presentationTimestamps[0].sampleIndex],i=e.samples[ce(e.presentationTimestamps).sampleIndex];e.startTimestamp=t.presentationTimestamp,e.endTimestamp=i.presentationTimestamp+i.duration;const{currentFragmentState:r}=this.currentTrack;oe(r),null!==r.startTimestamp&&(Xr(e,r.startTimestamp),e.startTimestampIsFinal=!0),r.encryptionAuxInfo&&!e.samples[0].encryption&&(e.encryptionAuxInfo=r.encryptionAuxInfo)}this.currentTrack.currentFragmentState=null,this.currentTrack=null}break;case"pssh":{if(null==(k=this.input._formatOptions.isobmff)?void 0:k._suppressPsshParsing)break;const t=vr(Tl(e,ne.contentSize));this.currentFragment?this.currentFragment.psshBoxes.push(t):this.currentTrack||this.psshBoxes.push(t)}break;case"tfhd":{oe(this.currentFragment),e.skip(1);const t=Pl(e),i=Boolean(1&t),r=Boolean(2&t),n=Boolean(8&t),s=Boolean(16&t),a=Boolean(32&t),o=Boolean(65536&t),l=Boolean(131072&t),c=Cl(e),u=this.tracks.find(e=>e.id===c);if(!u)break;const d=this.fragmentTrackDefaults.find(e=>e.trackId===c);this.currentTrack=u,u.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:null!=(y=null==d?void 0:d.defaultSampleDescriptionIndex)?y:null,defaultSampleDuration:null!=(b=null==d?void 0:d.defaultSampleDuration)?b:null,defaultSampleSize:null!=(T=null==d?void 0:d.defaultSampleSize)?T:null,defaultSampleFlags:null!=(v=null==d?void 0:d.defaultSampleFlags)?v:null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=Rl(e):l&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=Cl(e)),n&&(u.currentFragmentState.defaultSampleDuration=Cl(e)),s&&(u.currentFragmentState.defaultSampleSize=Cl(e)),a&&(u.currentFragmentState.defaultSampleFlags=Cl(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;oe(t.currentFragmentState);const i=vl(e);e.skip(3);const r=0===i?Cl(e):Rl(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;oe(this.currentFragment),oe(t.currentFragmentState);const i=vl(e),r=Pl(e),n=Boolean(1&r),s=Boolean(4&r),a=Boolean(256&r),o=Boolean(512&r),l=Boolean(1024&r),c=Boolean(2048&r),u=Cl(e);let d=null;n&&(d=El(e));let h,f=null;s&&(f=Cl(e)),this.currentFragment.trackData.has(t.id)?(h=this.currentFragment.trackData.get(t.id),null!==d&&(h.currentOffset=t.currentFragmentState.baseDataOffset+d)):(h={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(null!=d?d:0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,h));for(let m=0;m<u;m++){let r,n,s;a?r=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleDuration),r=t.currentFragmentState.defaultSampleDuration),o?n=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleSize),n=t.currentFragmentState.defaultSampleSize),l?s=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleFlags),s=t.currentFragmentState.defaultSampleFlags),0===m&&null!==f&&(s=f);let u=0;c&&(u=0===i?Cl(e):El(e));const d=!(65536&s);h.samples.push({presentationTimestamp:h.currentTimestamp+u,duration:r,byteOffset:h.currentOffset,byteSize:n,isKeyFrame:d,encryption:null}),h.currentOffset+=n,h.currentTimestamp+=r}this.currentFragment.implicitBaseDataOffset=h.currentOffset}break;case"saiz":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;e.skip(1);if(1&Pl(e)){const i=Nl(e,4),r=Cl(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const i=vl(e),r=Cl(e);let n=null;0===i&&r>0&&(n=Tl(e,r));const s=Qr(t);s.defaultSampleInfoSize=i,s.sampleSizes=n,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=vl(e);if(1&Pl(e)){const i=Nl(e,4),r=Cl(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=Cl(e);if(0===r)break;r>1&&Pt._warn("Multiple saio entries are not supported; using the first offset only.");let n=0===i?Cl(e):Number(Rl(e));this.currentFragment&&(n+=this.currentFragment.moofOffset);Qr(t).offset=n}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;oe(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=Pl(e),n=Boolean(2&r),s=Cl(e),a=t.encryptionInfo.defaultPerSampleIvSize;oe(null!==a);for(let o=0;o<Math.min(s,i.samples.length);o++){const r=new Uint8Array(16);a>0?r.set(Tl(e,a),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(n){const t=Sl(e);s=[];for(let i=0;i<t;i++){const t=Sl(e),i=Cl(e);s.push({clearLen:t,protectedLen:i})}}i.samples[o].encryption={iv:r,subsamples:s}}}break;case"udta":{const t=this.iterateContiguousBoxes(e.slice(se,ne.contentSize));for(const{boxInfo:e,slice:i}of t){if("meta"!==e.name&&!this.currentTrack){const t=i.filePos;null!=(w=this.metadataTags).raw||(w.raw={}),"\xa9"===e.name[0]?null!=(S=this.metadataTags.raw)[P=e.name]||(S[P]=Cr(i)):null!=(I=this.metadataTags.raw)[x=e.name]||(I[x]=Tl(i,e.contentSize)),i.filePos=t}switch(e.name){case"meta":i.skip(-e.headerSize),this.traverseBox(i);break;case"\xa9nam":case"name":this.currentTrack?this.currentTrack.name=pe.decode(Tl(i,e.contentSize)):null!=(C=this.metadataTags).title||(C.title=Cr(i));break;case"\xa9des":this.currentTrack||null!=(B=this.metadataTags).description||(B.description=Cr(i));break;case"\xa9ART":this.currentTrack||null!=(E=this.metadataTags).artist||(E.artist=Cr(i));break;case"\xa9alb":this.currentTrack||null!=(_=this.metadataTags).album||(_.album=Cr(i));break;case"albr":this.currentTrack||null!=(R=this.metadataTags).albumArtist||(R.albumArtist=Cr(i));break;case"\xa9gen":this.currentTrack||null!=(F=this.metadataTags).genre||(F.genre=Cr(i));break;case"\xa9day":if(!this.currentTrack){const e=new Date(Cr(i));Number.isNaN(e.getTime())||null!=(A=this.metadataTags).date||(A.date=e)}break;case"\xa9cmt":this.currentTrack||null!=(M=this.metadataTags).comment||(M.comment=Cr(i));break;case"\xa9lyr":this.currentTrack||null!=(D=this.metadataTags).lyrics||(D.lyrics=Cr(i))}}}break;case"meta":{if(this.currentTrack)break;const t=0!==Cl(e);this.currentMetadataKeys=new Map,t?this.readContiguousBoxes(e.slice(se,ne.contentSize)):this.readContiguousBoxes(e.slice(se+4,ne.contentSize-4)),this.currentMetadataKeys=null}break;case"keys":{if(!this.currentMetadataKeys)break;e.skip(4);const t=Cl(e);for(let i=0;i<t;i++){const t=Cl(e);e.skip(4);const r=pe.decode(Tl(e,t-8));this.currentMetadataKeys.set(i+1,r)}}break;case"ilst":{if(!this.currentMetadataKeys)break;const t=this.iterateContiguousBoxes(e.slice(se,ne.contentSize));for(const{boxInfo:e,slice:i}of t){let t=e.name;const r=(t.charCodeAt(0)<<24)+(t.charCodeAt(1)<<16)+(t.charCodeAt(2)<<8)+t.charCodeAt(3);this.currentMetadataKeys.has(r)&&(t=this.currentMetadataKeys.get(r));const n=Br(i);switch(null!=(N=this.metadataTags).raw||(N.raw={}),null!=(O=this.metadataTags.raw)[t]||(O[t]=n),t){case"\xa9nam":case"titl":case"com.apple.quicktime.title":case"title":"string"===typeof n&&(null!=(L=this.metadataTags).title||(L.title=n));break;case"\xa9des":case"desc":case"dscp":case"com.apple.quicktime.description":case"description":"string"===typeof n&&(null!=(z=this.metadataTags).description||(z.description=n));break;case"\xa9ART":case"com.apple.quicktime.artist":case"artist":"string"===typeof n&&(null!=(U=this.metadataTags).artist||(U.artist=n));break;case"\xa9alb":case"albm":case"com.apple.quicktime.album":case"album":"string"===typeof n&&(null!=(q=this.metadataTags).album||(q.album=n));break;case"aART":case"album_artist":"string"===typeof n&&(null!=(W=this.metadataTags).albumArtist||(W.albumArtist=n));break;case"\xa9cmt":case"com.apple.quicktime.comment":case"comment":"string"===typeof n&&(null!=(j=this.metadataTags).comment||(j.comment=n));break;case"\xa9gen":case"gnre":case"com.apple.quicktime.genre":case"genre":"string"===typeof n&&(null!=(K=this.metadataTags).genre||(K.genre=n));break;case"\xa9lyr":case"lyrics":"string"===typeof n&&(null!=(X=this.metadataTags).lyrics||(X.lyrics=n));break;case"\xa9day":case"rldt":case"com.apple.quicktime.creationdate":case"date":if("string"===typeof n){const e=new Date(n);Number.isNaN(e.getTime())||null!=($=this.metadataTags).date||($.date=e)}break;case"covr":case"com.apple.quicktime.artwork":n instanceof It?(null!=(G=this.metadataTags).images||(G.images=[]),this.metadataTags.images.push({data:n.data,kind:"coverFront",mimeType:n.mimeType})):n instanceof Uint8Array&&(null!=(Q=this.metadataTags).images||(Q.images=[]),this.metadataTags.images.push({data:n,kind:"coverFront",mimeType:"image/*"}));break;case"track":if("string"===typeof n){const e=n.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=(Y=this.metadataTags).trackNumber||(Y.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(J=this.metadataTags).tracksTotal||(J.tracksTotal=i))}break;case"trkn":if(n instanceof Uint8Array&&n.length>=6){const e=me(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(Z=this.metadataTags).trackNumber||(Z.trackNumber=t)),i>0&&(null!=(ee=this.metadataTags).tracksTotal||(ee.tracksTotal=i))}break;case"disc":case"disk":if(n instanceof Uint8Array&&n.length>=6){const e=me(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(te=this.metadataTags).discNumber||(te.discNumber=t)),i>0&&(null!=(ie=this.metadataTags).discsTotal||(ie.discsTotal=i))}}}}}return e.filePos=ae,!0}}class Ur{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){var e;const t=this.internalTrack;if(t.durationInMediaTimescale<=0)return null;oe(t.trackBacking);const i=yield t.trackBacking.getFirstPacket({metadataOnly:!0});return(null!=(e=null==i?void 0:i.timestamp)?e:0)+t.durationInMediaTimescale/t.timescale})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getFirstPacket(e){return Y(this,null,function*(){const t=yield this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)})}mapTimestampIntoTimescale(e){return He(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}getPacket(e,t){return Y(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=Hr(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return Gr(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=Re(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.packetToSampleIndex.get(e);if(void 0!==i)return this.fetchPacketForSampleIndex(i+1,t);const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1<t.samples.length)return{sampleIndex:r.sampleIndex+1,correctSampleFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{sampleIndex:0,correctSampleFound:!0}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}getKeyPacket(e,t){return Y(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=Vr(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return Gr(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=Ne(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s})}getNextKeyPacket(e,t){return Y(this,null,function*(){const i=this.packetToSampleIndex.get(e);if(void 0!==i){const e=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=Kr(e,i);return this.fetchPacketForSampleIndex(r,t)}const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return oe(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}fetchPacketForSampleIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=jr(i,e);if(!r)return null;let n;if(t.metadataOnly)n=br;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(ct(t)&&(t=yield t),!t)return null;if(n=Tl(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=yield Yr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);e<i.length&&(t=i[e])}null!=t||(t=Jr(this.internalTrack.encryptionInfo)),t&&(n=yield Zr(this.internalTrack,t,n,null))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,a=r.duration/this.internalTrack.timescale,o=new Tr(n,r.isKeyFrame?"key":"delta",s,a,e,r.sampleSize);return this.packetToSampleIndex.set(o,e),o})}fetchPacketInFragment(e,t,i){return Y(this,null,function*(){var r;if(-1===t)return null;const n=e.trackData.get(this.internalTrack.id).samples[t];let s;if(oe(n),i.metadataOnly)s=br;else{let t=this.internalTrack.demuxer.reader.requestSlice(n.byteOffset,n.byteSize);if(ct(t)&&(t=yield t),!t)return null;if(s=Tl(t,n.byteSize),this.internalTrack.encryptionInfo){const t=null!=(r=n.encryption)?r:Jr(this.internalTrack.encryptionInfo);t&&(s=yield Zr(this.internalTrack,t,s,e))}}const a=(n.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,o=n.duration/this.internalTrack.timescale,l=new Tr(s,n.isKeyFrame?"key":"delta",a,o,e.moofOffset+t,n.byteSize);return this.packetToFragmentLocation.set(l,{fragment:e,sampleIndex:t}),l})}performFragmentedLookup(e,t,i,r,n){return Y(this,null,function*(){var s,a,o;const l=this.internalTrack.demuxer;let c=null,u=null,d=-1;if(e){const{sampleIndex:i,correctSampleFound:r}=t(e);if(r)return this.fetchPacketInFragment(e,i,n);-1!==i&&(u=e,d=i)}const h=Re(this.internalTrack.fragmentLookupTable,i,e=>e.timestamp),f=-1!==h?this.internalTrack.fragmentLookupTable[h]:null,m=Re(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),p=-1!==m?this.internalTrack.fragmentPositionCache[m]:null,g=Math.max(null!=(s=null==f?void 0:f.moofOffset)?s:0,null!=(a=null==p?void 0:p.moofOffset)?a:0)||null;let k;for(e?null===g||e.moofOffset>=g?(k=e.moofOffset+e.moofSize,c=e):k=g:k=null!=g?g:0;;){if(c){const e=c.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=l.reader.requestSliceRange(k,8,16);if(ct(e)&&(e=yield e),!e)break;const i=k,s=Sr(e);if(!s)break;if("moof"===s.name){c=yield l.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(c);if(r)return this.fetchPacketInFragment(c,e,n);-1!==e&&(u=c,d=e)}k=i+s.totalSize}if(f&&(!u||u.moofOffset<f.moofOffset)){const e=this.internalTrack.fragmentLookupTable[h-1];oe(!e||e.timestamp<f.timestamp);const i=null!=(o=null==e?void 0:e.timestamp)?o:-1/0;return this.performFragmentedLookup(null,t,i,r,n)}return u?this.fetchPacketInFragment(u,d,n):null})}}class qr extends Ur{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.rotation}getColorSpace(){return Y(this,null,function*(){var e,t,i,r;const n=yield this.getDecoderConfig();return n?{primaries:null==(e=n.colorSpace)?void 0:e.primaries,transfer:null==(t=n.colorSpace)?void 0:t.transfer,matrix:null==(i=n.colorSpace)?void 0:i.matrix,fullRange:null==(r=n.colorSpace)?void 0:r.fullRange}:this.internalTrack.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)})}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e,t,i,r,n,s,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=yield this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&bi(e.data)}}else{const e=yield this.getFirstPacket({}),t=e&&yi(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const t=yield this.getFirstPacket({}),i=t&&gi(t.data);i&&(this.internalTrack.info.vp9CodecInfo=V(H({},null!=(e=this.internalTrack.info.vp9CodecInfo)?e:i),{videoFullRangeFlag:i.videoFullRangeFlag,colourPrimaries:i.colourPrimaries,transferCharacteristics:i.transferCharacteristics,matrixCoefficients:i.matrixCoefficients}))}else{const e=yield this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&ni(e.data)}else{const e=yield this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&$t(e.data)}if(!Se(this.internalTrack.info.colorSpace)){const e=ir(this.internalTrack.info);null!=(t=this.internalTrack.info.colorSpace).primaries||(t.primaries=e.primaries),null!=(i=this.internalTrack.info.colorSpace).transfer||(i.transfer=e.transfer),null!=(r=this.internalTrack.info.colorSpace).matrix||(r.matrix=e.matrix),null!=(n=this.internalTrack.info.colorSpace).fullRange||(n.fullRange=e.fullRange)}const o={codec:tr(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(s=this.internalTrack.info.codecDescription)?s:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class Wr extends Ur{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Wi(e.data)}return{codec:rr(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const Hr=(e,t)=>{if(e.presentationTimestamps){const i=Re(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=Re(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},Vr=(e,t)=>{var i;if(!e.keySampleIndices)return Hr(e,t);if(e.presentationTimestamps){const i=Re(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==_e(e.keySampleIndices,i,e=>e))return i}return-1}{const r=Hr(e,t),n=Re(e.keySampleIndices,r,e=>e);return null!=(i=e.keySampleIndices[n])?i:-1}},jr=(e,t)=>{const i=Re(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let n=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=Re(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),a=e.sampleCompositionTimeOffsets[s];a&&t-a.startIndex<a.count&&(n+=a.offset);const o=e.sampleSizes[Math.min(t,e.sampleSizes.length-1)],l=Re(e.sampleToChunk,t,e=>e.startSampleIndex),c=e.sampleToChunk[l];oe(c);const u=c.startChunkIndex+Math.floor((t-c.startSampleIndex)/c.samplesPerChunk),d=e.chunkOffsets[u],h=c.startSampleIndex+(u-c.startChunkIndex)*c.samplesPerChunk;let f=0,m=d;if(1===e.sampleSizes.length)m+=o*(t-h),f+=o*c.samplesPerChunk;else for(let g=h;g<h+c.samplesPerChunk;g++){const i=e.sampleSizes[g];g<t&&(m+=i),f+=i}let p=r.delta;if(e.presentationTimestamps){const i=e.presentationTimestampIndexMap[t];if(oe(void 0!==i),i<e.presentationTimestamps.length-1){p=e.presentationTimestamps[i+1].presentationTimestamp-n}}return{presentationTimestamp:n,duration:p,sampleOffset:m,sampleSize:o,chunkOffset:d,chunkSize:f,isKeyFrame:!e.keySampleIndices||-1!==_e(e.keySampleIndices,t,e=>e)}},Kr=(e,t)=>{var i;if(!e.keySampleIndices)return t+1;const r=Re(e.keySampleIndices,t,e=>e);return null!=(i=e.keySampleIndices[r+1])?i:-1},Xr=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},$r=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},Gr=e=>0===e.sampleSizes.length,Qr=e=>{var t,i,r;return e.currentFragmentState?null!=(i=(t=e.currentFragmentState).encryptionAuxInfo)?i:t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}:null!=(r=e.encryptionAuxInfo)?r:e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}},Yr=(e,t,i)=>Y(null,null,function*(){if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{oe(i.sampleSizes);for(let e=0;e<i.sampleCount;e++)r+=i.sampleSizes[e]}let n=e.requestSlice(i.offset,r);if(ct(n)&&(n=yield n),!n)throw new Error("Failed to read auxiliary encryption info.");const s=t.defaultPerSampleIvSize;oe(null!==s);const a=[];for(let e=0;e<i.sampleCount;e++){const r=i.defaultSampleInfoSize>0?i.defaultSampleInfoSize:i.sampleSizes[e],o=new Uint8Array(16);s>0?o.set(Tl(n,s),0):o.set(t.defaultConstantIv,0);let l=null;if(r>s){const e=Sl(n);l=[];for(let t=0;t<e;t++){const e=Sl(n),t=Cl(n);l.push({clearLen:e,protectedLen:t})}}a.push({iv:o,subsamples:l})}return i.resolved=a,a}),Jr=e=>e.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,Zr=(e,t,i,r)=>Y(null,null,function*(){var n;oe(e.encryptionInfo);const s=e.encryptionInfo;oe(null!==s.defaultKid);const a=s.defaultKid;let o;const l=e.demuxer.decryptionKeyCache.get(a);if(l)o=yield l;else{if(!(null==(n=e.demuxer.input._formatOptions.isobmff)?void 0:n.resolveKeyId))throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=Y(null,null,function*(){let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(a));for(let e=0;e<t.length-1;e++)for(let i=e+1;i<t.length;i++)wr(t[e],t[i])&&(t.splice(i,1),i--)}const i=yield e.demuxer.input._formatOptions.isobmff.resolveKeyId({keyId:a,psshBoxes:t});if(!("string"===typeof i&&32===i.length&&Ce.test(i)||i instanceof Uint8Array&&16===i.byteLength))throw new TypeError("resolveKeyId must return a 32-character hex string or a 16-byte Uint8Array containing the decryption key.");return i instanceof Uint8Array?i:(e=>{oe(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;i<e.length;i+=2)t[i/2]=parseInt(e.slice(i,i+2),16);return t})(i)});e.demuxer.decryptionKeyCache.set(a,t),o=yield t}return"cenc"===s.scheme||"cens"===s.scheme?en(o,s,t,i):tn(o,s,t,i)}),en=(e,t,i,r)=>Y(null,null,function*(){const n=new Uint8Array(16);n.set(i.iv,0);const s=yield crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),a=e=>Y(null,null,function*(){const t=yield crypto.subtle.decrypt({name:"AES-CTR",counter:n,length:64},s,e);return new Uint8Array(t)});if(!i.subsamples)return a(r);oe(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=rn(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let l=0;for(const e of o)for(const t of e.perSubsample)l+=t.length;const c=new Uint8Array(l);let u=0;for(const e of o)for(const t of e.perSubsample)c.set(r.subarray(t.offset,t.offset+t.length),u),u+=t.length;const d=yield a(c),h=new Uint8Array(r);let f=0;for(const e of o)for(const t of e.perSubsample)h.set(d.subarray(f,f+t.length),t.offset),f+=t.length;return h}),tn=(e,t,i,r)=>{const n=new Lr;n.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,a=t.defaultSkipByteBlock;if(oe(null!==s&&null!==a),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i<t;i++){const t=16*i;n.in.set(r.subarray(t,t+16)),n.decrypt(),e.set(n.out,t)}return e}if(0===s&&0===a)throw new Error("cbcs with subsamples requires pattern encryption.");const o=new Uint8Array(r),l=rn(i.subsamples,s,a),c=new DataView(i.iv.buffer,i.iv.byteOffset,16);for(const u of l){n.iv[0]=c.getUint32(0,!1),n.iv[1]=c.getUint32(4,!1),n.iv[2]=c.getUint32(8,!1),n.iv[3]=c.getUint32(12,!1);for(const e of u.perSubsample){const t=e.length/16;for(let i=0;i<t;i++){const t=e.offset+16*i;n.in.set(r.subarray(t,t+16)),n.decrypt(),o.set(n.out,t)}}}return o},rn=(e,t,i)=>{const r=[],n=0!==t||0!==i;let s=0;for(const a of e){s+=a.clearLen;const e=[];if(n){let r=a.protectedLen,n=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:n,length:s}),n+=s,r-=s;const a=Math.min(16*i,r);n+=a,r-=a}s+=a.protectedLen}else a.protectedLen>0&&e.push({offset:s,length:a.protectedLen}),s+=a.protectedLen;r.push({perSubsample:e})}return r};var nn,sn;(sn=nn||(nn={}))[sn.EBML=440786851]="EBML",sn[sn.EBMLVersion=17030]="EBMLVersion",sn[sn.EBMLReadVersion=17143]="EBMLReadVersion",sn[sn.EBMLMaxIDLength=17138]="EBMLMaxIDLength",sn[sn.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",sn[sn.DocType=17026]="DocType",sn[sn.DocTypeVersion=17031]="DocTypeVersion",sn[sn.DocTypeReadVersion=17029]="DocTypeReadVersion",sn[sn.Void=236]="Void",sn[sn.Segment=408125543]="Segment",sn[sn.SeekHead=290298740]="SeekHead",sn[sn.Seek=19899]="Seek",sn[sn.SeekID=21419]="SeekID",sn[sn.SeekPosition=21420]="SeekPosition",sn[sn.Duration=17545]="Duration",sn[sn.Info=357149030]="Info",sn[sn.TimestampScale=2807729]="TimestampScale",sn[sn.MuxingApp=19840]="MuxingApp",sn[sn.WritingApp=22337]="WritingApp",sn[sn.Tracks=374648427]="Tracks",sn[sn.TrackEntry=174]="TrackEntry",sn[sn.TrackNumber=215]="TrackNumber",sn[sn.TrackUID=29637]="TrackUID",sn[sn.TrackType=131]="TrackType",sn[sn.FlagEnabled=185]="FlagEnabled",sn[sn.FlagDefault=136]="FlagDefault",sn[sn.FlagForced=21930]="FlagForced",sn[sn.FlagOriginal=21934]="FlagOriginal",sn[sn.FlagHearingImpaired=21931]="FlagHearingImpaired",sn[sn.FlagVisualImpaired=21932]="FlagVisualImpaired",sn[sn.FlagCommentary=21935]="FlagCommentary",sn[sn.FlagLacing=156]="FlagLacing",sn[sn.Name=21358]="Name",sn[sn.Language=2274716]="Language",sn[sn.LanguageBCP47=2274717]="LanguageBCP47",sn[sn.CodecID=134]="CodecID",sn[sn.CodecPrivate=25506]="CodecPrivate",sn[sn.CodecDelay=22186]="CodecDelay",sn[sn.SeekPreRoll=22203]="SeekPreRoll",sn[sn.DefaultDuration=2352003]="DefaultDuration",sn[sn.Video=224]="Video",sn[sn.PixelWidth=176]="PixelWidth",sn[sn.PixelHeight=186]="PixelHeight",sn[sn.DisplayWidth=21680]="DisplayWidth",sn[sn.DisplayHeight=21690]="DisplayHeight",sn[sn.DisplayUnit=21682]="DisplayUnit",sn[sn.AlphaMode=21440]="AlphaMode",sn[sn.Audio=225]="Audio",sn[sn.SamplingFrequency=181]="SamplingFrequency",sn[sn.Channels=159]="Channels",sn[sn.BitDepth=25188]="BitDepth",sn[sn.SimpleBlock=163]="SimpleBlock",sn[sn.BlockGroup=160]="BlockGroup",sn[sn.Block=161]="Block",sn[sn.BlockAdditions=30113]="BlockAdditions",sn[sn.BlockMore=166]="BlockMore",sn[sn.BlockAdditional=165]="BlockAdditional",sn[sn.BlockAddID=238]="BlockAddID",sn[sn.BlockDuration=155]="BlockDuration",sn[sn.ReferenceBlock=251]="ReferenceBlock",sn[sn.Cluster=524531317]="Cluster",sn[sn.Timestamp=231]="Timestamp",sn[sn.Cues=475249515]="Cues",sn[sn.CuePoint=187]="CuePoint",sn[sn.CueTime=179]="CueTime",sn[sn.CueTrackPositions=183]="CueTrackPositions",sn[sn.CueTrack=247]="CueTrack",sn[sn.CueClusterPosition=241]="CueClusterPosition",sn[sn.Colour=21936]="Colour",sn[sn.MatrixCoefficients=21937]="MatrixCoefficients",sn[sn.TransferCharacteristics=21946]="TransferCharacteristics",sn[sn.Primaries=21947]="Primaries",sn[sn.Range=21945]="Range",sn[sn.Projection=30320]="Projection",sn[sn.ProjectionType=30321]="ProjectionType",sn[sn.ProjectionPoseRoll=30325]="ProjectionPoseRoll",sn[sn.Attachments=423732329]="Attachments",sn[sn.AttachedFile=24999]="AttachedFile",sn[sn.FileDescription=18046]="FileDescription",sn[sn.FileName=18030]="FileName",sn[sn.FileMediaType=18016]="FileMediaType",sn[sn.FileData=18012]="FileData",sn[sn.FileUID=18094]="FileUID",sn[sn.Chapters=272869232]="Chapters",sn[sn.Tags=307544935]="Tags",sn[sn.Tag=29555]="Tag",sn[sn.Targets=25536]="Targets",sn[sn.TargetTypeValue=26826]="TargetTypeValue",sn[sn.TargetType=25546]="TargetType",sn[sn.TagTrackUID=25541]="TagTrackUID",sn[sn.TagEditionUID=25545]="TagEditionUID",sn[sn.TagChapterUID=25540]="TagChapterUID",sn[sn.TagAttachmentUID=25542]="TagAttachmentUID",sn[sn.SimpleTag=26568]="SimpleTag",sn[sn.TagName=17827]="TagName",sn[sn.TagLanguage=17530]="TagLanguage",sn[sn.TagString=17543]="TagString",sn[sn.TagBinary=17541]="TagBinary",sn[sn.ContentEncodings=28032]="ContentEncodings",sn[sn.ContentEncoding=25152]="ContentEncoding",sn[sn.ContentEncodingOrder=20529]="ContentEncodingOrder",sn[sn.ContentEncodingScope=20530]="ContentEncodingScope",sn[sn.ContentCompression=20532]="ContentCompression",sn[sn.ContentCompAlgo=16980]="ContentCompAlgo",sn[sn.ContentCompSettings=16981]="ContentCompSettings",sn[sn.ContentEncryption=20533]="ContentEncryption";const an=[nn.EBML,nn.Segment],on=[nn.SeekHead,nn.Info,nn.Cluster,nn.Tracks,nn.Cues,nn.Attachments,nn.Chapters,nn.Tags],ln=[...an,...on],cn=16,un=e=>{if(e.remainingLength<1)return null;const t=vl(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength<i?null:i},dn=e=>{if(e.remainingLength<1)return null;const t=vl(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength<i-1)return null;let n=t&r-1;for(let s=1;s<i;s++)n*=256,n+=vl(e);return n},hn=(e,t)=>{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r<t;r++)i*=256,i+=vl(e);return i},fn=e=>{const t=un(e);if(null===t)return null;if(e.remainingLength<t)return null;return hn(e,t)},mn=e=>{if(e.remainingLength<1)return null;if(255===vl(e))return;e.skip(-1);const t=dn(e);return null===t?null:72057594037927940!==t?t:void 0},pn=e=>{oe(e.remainingLength>=2);const t=fn(e);if(null===t)return null;const i=mn(e);return null===i?null:{id:t,size:i}},gn=(e,t)=>{const i=Tl(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return String.fromCharCode(...i.subarray(0,r))},kn=(e,t)=>{const i=Tl(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return pe.decode(i.subarray(0,r))},yn=(e,t)=>{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?Ml(e):Dl(e)},bn=(e,t,i,r)=>Y(null,null,function*(){const n=new Set(i);let s=t;for(;null===r||s<r;){let t=e.requestSliceRange(s,2,cn);if(ct(t)&&(t=yield t),!t)break;const i=pn(t);if(!i)break;if(n.has(i.id))return{pos:s,found:!0};Dn(i.size),s=t.filePos+i.size}return{pos:null!==r&&r>s?r:s,found:!1}}),Tn=(e,t,i,r)=>Y(null,null,function*(){const n=q(2,16),s=new Set(i);let a=t;for(;a<r;){let t=e.requestSliceRange(a,0,Math.min(n,r-a));if(ct(t)&&(t=yield t),!t)break;if(t.length<8)break;for(let e=0;e<t.length-8;e++){t.filePos=a;const e=fn(t);if(null!==e&&s.has(e))return a;a++}}return null}),vn="V_MPEG4/ISO/AVC",wn="V_MPEGH/ISO/HEVC",Sn="V_VP8",Pn="V_VP9",In="V_AV1",xn="V_PRORES",Cn="A_AAC",Bn="A_MPEG/L3",En="A_OPUS",_n="A_VORBIS",Rn="A_FLAC",Fn="A_AC3",An="A_EAC3",Mn="A_DTS";function Dn(e){if(void 0===e)throw new Error("Undefined element size is used in a place where it is not supported.")}var Nn,On,Ln,zn,Un,qn;(On=Nn||(Nn={}))[On.None=0]="None",On[On.Xiph=1]="Xiph",On[On.FixedSize=2]="FixedSize",On[On.Ebml=3]="Ebml",(zn=Ln||(Ln={}))[zn.Block=1]="Block",zn[zn.Private=2]="Private",zn[zn.Next=4]="Next",(qn=Un||(Un={}))[qn.Zlib=0]="Zlib",qn[qn.Bzlib=1]="Bzlib",qn[qn.lzo1x=2]="lzo1x",qn[qn.HeaderStripping=3]="HeaderStripping";const Wn=[{id:nn.SeekHead,flag:"seekHeadSeen"},{id:nn.Info,flag:"infoSeen"},{id:nn.Tracks,flag:"tracksSeen"},{id:nn.Cues,flag:"cuesSeen"}],Hn=10*q(2,20);class Vn extends yr{constructor(e){super(e),this.readMetadataPromise=null,this.segments=[],this.currentSegment=null,this.currentTrack=null,this.currentCluster=null,this.currentBlock=null,this.currentBlockAdditional=null,this.currentCueTime=null,this.currentDecodingInstruction=null,this.currentTagTargetIsMovie=!0,this.currentSimpleTagName=null,this.currentAttachedFile=null,this.isWebM=!1,this.reader=e._reader}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.segments.flatMap(e=>e.tracks.map(e=>e.trackBacking))})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)})),hasAudio:this.segments.some(e=>e.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)})),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return Y(this,null,function*(){yield this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&(yield this.loadSegmentMetadata(t)),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e=H(H({},e),t.metadataTags);return e})}readMetadata(){var e;return null!=(e=this.readMetadataPromise)?e:this.readMetadataPromise=(()=>Y(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,cn);if(ct(t)&&(t=yield t),!t)break;const i=pn(t);if(!i)break;const r=i.id;let n=i.size;const s=t.filePos;if(r===nn.EBML){Dn(n);let e=this.reader.requestSlice(s,n);if(ct(e)&&(e=yield e),!e)break;this.readContiguousElements(e)}else if(r===nn.Segment){if(yield this.readSegment(s,n),void 0===n)break;if(null===this.reader.fileSize)break}else if(r===nn.Cluster){if(null===this.reader.fileSize)break;if(void 0===n){n=(yield bn(this.reader,s,ln,this.reader.fileSize)).pos-s}const e=ce(this.segments);e&&(e.elementEndPos=s+n)}Dn(n),e=s+n}}))()}readSegment(e,t){return Y(this,null,function*(){var i;this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let r=e;for(;null===this.currentSegment.elementEndPos||r<this.currentSegment.elementEndPos;){let e=this.reader.requestSliceRange(r,2,cn);if(ct(e)&&(e=yield e),!e)break;const t=r,n=pn(e);if(!n||!on.includes(n.id)&&n.id!==nn.Void){const e=yield Tn(this.reader,t,on,Math.min(null!=(i=this.currentSegment.elementEndPos)?i:1/0,t+Hn));if(e){r=e;continue}break}const{id:s,size:a}=n,o=e.filePos,l=Wn.findIndex(e=>e.id===s);if(-1!==l){const e=Wn[l].flag;this.currentSegment[e]=!0,Dn(a);let t=this.reader.requestSlice(o,a);ct(t)&&(t=yield t),t&&this.readContiguousElements(t)}else if(s===nn.Tags||s===nn.Attachments){s===nn.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,Dn(a);let e=this.reader.requestSlice(o,a);ct(e)&&(e=yield e),e&&this.readContiguousElements(e)}else if(s===nn.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===a)break;r=o+a}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const t of this.currentSegment.seekEntries){const i=Wn.find(e=>e.id===t.id);if(!i)continue;if(this.currentSegment[i.flag])continue;let r=this.reader.requestSliceRange(e+t.segmentPosition,2,cn);if(ct(r)&&(r=yield r),!r)continue;const n=pn(r);if(!n)continue;const{id:s,size:a}=n;if(s!==i.id)continue;Dn(a),this.currentSegment[i.flag]=!0;let o=this.reader.requestSlice(r.filePos,a);ct(o)&&(o=yield o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const e of this.currentSegment.tracks)null!==e.defaultDurationNs&&(e.defaultDuration=this.currentSegment.timestampFactor*e.defaultDurationNs/1e9);const n=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const e of this.currentSegment.cuePoints){const t=n.get(e.trackId);t&&t.cuePoints.push(e)}for(const e of this.currentSegment.tracks){e.cuePoints.sort((e,t)=>e.time-t.time);for(let t=0;t<e.cuePoints.length-1;t++){const i=e.cuePoints[t],r=e.cuePoints[t+1];i.time===r.time&&(e.cuePoints.splice(t+1,1),t--)}}let s=null,a=-1/0;for(const e of this.currentSegment.tracks)e.cuePoints.length>a&&(a=e.cuePoints.length,s=e);for(const e of this.currentSegment.tracks)0===e.cuePoints.length&&(e.cuePoints=s.cuePoints);this.currentSegment=null})}readCluster(e,t){return Y(this,null,function*(){var i;if((null==(i=t.lastReadCluster)?void 0:i.elementStartPos)===e)return t.lastReadCluster;let r=this.reader.requestSliceRange(e,2,cn);ct(r)&&(r=yield r),oe(r);const n=e,s=pn(r);oe(s);oe(s.id===nn.Cluster);let a=s.size;const o=r.filePos;if(void 0===a){a=(yield bn(this.reader,o,ln,t.elementEndPos)).pos-o}let l=this.reader.requestSlice(o,a);ct(l)&&(l=yield l);const c={segment:t,elementStartPos:n,elementEndPos:o+a,dataStartPos:o,timestamp:-1,trackData:new Map};if(this.currentCluster=c,l){const e=this.readContiguousElements(l,ln);c.elementEndPos=e}for(const[,e]of c.trackData){const t=e.track;oe(e.blocks.length>0);let i=!1;for(let n=0;n<e.blocks.length;n++){const t=e.blocks[n];t.timestamp+=c.timestamp,i||(i=t.lacing!==Nn.None)}e.presentationTimestamps=e.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let n=0;n<e.presentationTimestamps.length;n++){const i=e.presentationTimestamps[n],r=e.blocks[i.blockIndex];if(null===e.firstKeyFrameTimestamp&&r.isKeyFrame&&(e.firstKeyFrameTimestamp=r.timestamp),n<e.presentationTimestamps.length-1){const t=e.presentationTimestamps[n+1];r.duration=t.timestamp-r.timestamp}else 0===r.duration&&null!=t.defaultDuration&&r.lacing===Nn.None&&(r.duration=t.defaultDuration)}i&&(this.expandLacedBlocks(e.blocks,t),e.presentationTimestamps=e.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const r=e.blocks[e.presentationTimestamps[0].blockIndex],s=e.blocks[ce(e.presentationTimestamps).blockIndex];e.startTimestamp=r.timestamp,e.endTimestamp=s.timestamp+s.duration;const a=Re(t.clusterPositionCache,e.startTimestamp,e=>e.startTimestamp);-1!==a&&t.clusterPositionCache[a].elementStartPos===n||t.clusterPositionCache.splice(a+1,0,{elementStartPos:c.elementStartPos,startTimestamp:e.startTimestamp})}return t.lastReadCluster=c,c})}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){var i;for(let r=0;r<e.length;r++){const n=e[r];if(n.lacing===Nn.None)continue;n.decoded||(n.data=this.decodeBlockData(t,n.data),n.decoded=!0);const s=yl.tempFromBytes(n.data),a=[],o=vl(s)+1;switch(n.lacing){case Nn.Xiph:{let e=0;for(let t=0;t<o-1;t++){let t=0;for(;s.bufferPos<s.length;){const i=vl(s);if(t+=i,i<255){a.push(t),e+=t;break}}}a.push(s.length-(s.bufferPos+e))}break;case Nn.FixedSize:{const e=s.length-1,t=Math.floor(e/o);for(let i=0;i<o;i++)a.push(t)}break;case Nn.Ebml:{const e=dn(s);oe(null!==e);let t=e;a.push(t);let i=t;for(let r=1;r<o-1;r++){const e=s.bufferPos,r=dn(s);oe(null!==r);t+=r-((1<<7*(s.bufferPos-e)-1)-1),a.push(t),i+=t}a.push(s.length-(s.bufferPos+i))}break;default:oe(!1)}oe(a.length===o),e.splice(r,1);const l=n.duration||o*(null!=(i=t.defaultDuration)?i:0);for(let t=0;t<o;t++){const i=a[t],c=Tl(s,i),u=n.timestamp+l*t/o,d=l/o;e.splice(r+t,0,{timestamp:u,duration:d,isKeyFrame:n.isKeyFrame,data:c,lacing:Nn.None,decoded:!0,postProcessed:!1,mainAdditional:n.mainAdditional})}r+=o,r--}}loadSegmentMetadata(e){return Y(this,null,function*(){for(const t of e.seekEntries){if(t.id!==nn.Tags||e.tagsSeen){if(t.id!==nn.Attachments||e.attachmentsSeen)continue}else;let i=this.reader.requestSliceRange(e.dataStartPos+t.segmentPosition,2,cn);if(ct(i)&&(i=yield i),!i)continue;const r=pn(i);if(!r||r.id!==t.id)continue;const{size:n}=r;Dn(n),oe(!this.currentSegment),this.currentSegment=e;let s=this.reader.requestSlice(i.filePos,n);ct(s)&&(s=yield s),s&&this.readContiguousElements(s),this.currentSegment=null,t.id===nn.Tags?e.tagsSeen=!0:t.id===nn.Attachments&&(e.attachmentsSeen=!0)}})}readContiguousElements(e,t){for(;e.remainingLength>=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F,A,M,D,N,O,L,z,U,q,W,j,K,X,$,G,Q,Y,J,Z,ee;const te=pn(e);if(!te)return!1;if(t&&t.includes(te.id))return!1;const{id:ie,size:re}=te,ne=e.filePos;switch(Dn(re),ie){case nn.DocType:this.isWebM="webm"===gn(e,re);break;case nn.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(ne,re)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case nn.SeekID:{const t=null==(i=this.currentSegment)?void 0:i.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=hn(e,re)}break;case nn.SeekPosition:{const t=null==(r=this.currentSegment)?void 0:r.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=hn(e,re)}break;case nn.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=hn(e,re),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case nn.Duration:if(!this.currentSegment)break;this.currentSegment.duration=yn(e,re);break;case nn.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:V(H({},Ct),{primary:!1}),trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(ne,re)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>{var t;return"decompress"!==(null==(t=e.data)?void 0:t.type)||e.scope!==Ln.Block||e.data.algorithm!==Un.HeaderStripping})&&(Pt._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===vn)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===wn)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===Sn)this.currentTrack.info.codec="vp8";else if(t===Pn)this.currentTrack.info.codec="vp9";else if(t===In)this.currentTrack.info.codec="av1";else if(t===xn){const e=this.currentTrack.codecPrivate?pe.decode(this.currentTrack.codecPrivate):"";Zi.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new Kn(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===Cn?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===Bn?this.currentTrack.info.codec="mp3":t===En?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=nr):t===_n?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Rn?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Fn?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===An?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Mn?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new Xn(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case nn.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=hn(e,re);break;case nn.TrackType:{if(!this.currentTrack)break;const t=hn(e,re);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:H({},Pe),alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case nn.FlagEnabled:if(!this.currentTrack)break;hn(e,re)||(this.currentTrack=null);break;case nn.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!hn(e,re);break;case nn.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!hn(e,re);break;case nn.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!hn(e,re);break;case nn.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!hn(e,re);break;case nn.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!hn(e,re);break;case nn.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!hn(e,re);break;case nn.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=gn(e,re);break;case nn.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=Tl(e,re);break;case nn.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=hn(e,re);break;case nn.Name:if(!this.currentTrack)break;this.currentTrack.name=kn(e,re);break;case nn.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=gn(e,re),Ge(this.currentTrack.languageCode)||(this.currentTrack.languageCode=We);break;case nn.LanguageBCP47:{if(!this.currentTrack)break;const t=gn(e,re).split("-")[0];this.currentTrack.languageCode=t||We,this.currentTrack.hasLanguageBcp47=!0}break;case nn.Video:if("video"!==(null==(s=null==(n=this.currentTrack)?void 0:n.info)?void 0:s.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.PixelWidth:if("video"!==(null==(o=null==(a=this.currentTrack)?void 0:a.info)?void 0:o.type))break;this.currentTrack.info.width=hn(e,re);break;case nn.PixelHeight:if("video"!==(null==(c=null==(l=this.currentTrack)?void 0:l.info)?void 0:c.type))break;this.currentTrack.info.height=hn(e,re);break;case nn.DisplayWidth:if("video"!==(null==(d=null==(u=this.currentTrack)?void 0:u.info)?void 0:d.type))break;this.currentTrack.info.displayWidth=hn(e,re);break;case nn.DisplayHeight:if("video"!==(null==(f=null==(h=this.currentTrack)?void 0:h.info)?void 0:f.type))break;this.currentTrack.info.displayHeight=hn(e,re);break;case nn.DisplayUnit:if("video"!==(null==(p=null==(m=this.currentTrack)?void 0:m.info)?void 0:p.type))break;this.currentTrack.info.displayUnit=hn(e,re);break;case nn.AlphaMode:if("video"!==(null==(k=null==(g=this.currentTrack)?void 0:g.info)?void 0:k.type))break;this.currentTrack.info.alphaMode=1===hn(e,re);break;case nn.Colour:if("video"!==(null==(b=null==(y=this.currentTrack)?void 0:y.info)?void 0:b.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.MatrixCoefficients:{if("video"!==(null==(v=null==(T=this.currentTrack)?void 0:T.info)?void 0:v.type))break;const t=hn(e,re),i=we[t];this.currentTrack.info.colorSpace.matrix=i}break;case nn.Range:{if("video"!==(null==(S=null==(w=this.currentTrack)?void 0:w.info)?void 0:S.type))break;const t=hn(e,re);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case nn.TransferCharacteristics:{if("video"!==(null==(I=null==(P=this.currentTrack)?void 0:P.info)?void 0:I.type))break;const t=hn(e,re),i=Te[t];this.currentTrack.info.colorSpace.transfer=i}break;case nn.Primaries:{if("video"!==(null==(C=null==(x=this.currentTrack)?void 0:x.info)?void 0:C.type))break;const t=hn(e,re),i=ye[t];this.currentTrack.info.colorSpace.primaries=i}break;case nn.Projection:if("video"!==(null==(E=null==(B=this.currentTrack)?void 0:B.info)?void 0:E.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.ProjectionPoseRoll:{if("video"!==(null==(R=null==(_=this.currentTrack)?void 0:_.info)?void 0:R.type))break;const t=-yn(e,re);try{this.currentTrack.info.rotation=le(t)}catch(se){}}break;case nn.Audio:if("audio"!==(null==(A=null==(F=this.currentTrack)?void 0:F.info)?void 0:A.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.SamplingFrequency:if("audio"!==(null==(D=null==(M=this.currentTrack)?void 0:M.info)?void 0:D.type))break;this.currentTrack.info.sampleRate=yn(e,re);break;case nn.Channels:if("audio"!==(null==(O=null==(N=this.currentTrack)?void 0:N.info)?void 0:O.type))break;this.currentTrack.info.numberOfChannels=hn(e,re);break;case nn.BitDepth:if("audio"!==(null==(z=null==(L=this.currentTrack)?void 0:L.info)?void 0:z.type))break;this.currentTrack.info.bitDepth=hn(e,re);break;case nn.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(ne,re)),this.currentCueTime=null;break;case nn.CueTime:this.currentCueTime=hn(e,re);break;case nn.CueTrackPositions:{if(null===this.currentCueTime)break;oe(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(ne,re)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case nn.CueTrack:{const t=null==(U=this.currentSegment)?void 0:U.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=hn(e,re)}break;case nn.CueClusterPosition:{const t=null==(q=this.currentSegment)?void 0:q.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;oe(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+hn(e,re)}break;case nn.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=hn(e,re);break;case nn.SimpleBlock:{if(!this.currentCluster)break;const t=dn(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Il(e),n=vl(e),s=n>>1&3;let a=!!(128&n);"audio"===(null==(W=i.track.info)?void 0:W.type)&&i.track.info.codec&&(a=!0);const o=Tl(e,re-(e.filePos-ne)),l=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:a,data:o,lacing:s,decoded:!l,postProcessed:!1,mainAdditional:null})}break;case nn.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(ne,re)),this.currentBlock=null;break;case nn.Block:{if(!this.currentCluster)break;const t=dn(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Il(e),n=vl(e)>>1&3,s=Tl(e,re-(e.filePos-ne)),a=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:s,lacing:n,decoded:!a,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case nn.BlockAdditions:this.readContiguousElements(e.slice(ne,re));break;case nn.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(ne,re)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case nn.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=Tl(e,re);break;case nn.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=hn(e,re);break;case nn.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=hn(e,re);break;case nn.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case nn.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(ne,re));break;case nn.Targets:this.readContiguousElements(e.slice(ne,re));break;case nn.TargetTypeValue:50!==hn(e,re)&&(this.currentTagTargetIsMovie=!1);break;case nn.TagTrackUID:case nn.TagEditionUID:case nn.TagChapterUID:case nn.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case nn.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(ne,re));break;case nn.TagName:this.currentSimpleTagName=kn(e,re);break;case nn.TagString:{if(!this.currentSimpleTagName)break;const t=kn(e,re);this.processTagValue(this.currentSimpleTagName,t)}break;case nn.TagBinary:{if(!this.currentSimpleTagName)break;const t=Tl(e,re);this.processTagValue(this.currentSimpleTagName,t)}break;case nn.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(ne,re));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(null!=t.raw||(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new xt(this.currentAttachedFile.fileData,null!=(j=this.currentAttachedFile.fileMediaType)?j:void 0,null!=(K=this.currentAttachedFile.fileName)?K:void 0,null!=(X=this.currentAttachedFile.fileDescription)?X:void 0)),(null==($=this.currentAttachedFile.fileMediaType)?void 0:$.startsWith("image/"))&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}null!=t.images||(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:null!=(G=this.currentAttachedFile.fileName)?G:void 0,description:null!=(Q=this.currentAttachedFile.fileDescription)?Q:void 0})}this.currentAttachedFile=null}break;case nn.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=BigInt("0");for(let r=0;r<t;r++)i<<=BigInt("8"),i+=BigInt(vl(e));return i})(e,re);break;case nn.FileName:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=kn(e,re);break;case nn.FileMediaType:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=gn(e,re);break;case nn.FileData:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=Tl(e,re);break;case nn.FileDescription:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=kn(e,re);break;case nn.ContentEncodings:if(!this.currentTrack)break;this.readContiguousElements(e.slice(ne,re)),this.currentTrack.decodingInstructions.sort((e,t)=>t.order-e.order);break;case nn.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Ln.Block,data:null},this.readContiguousElements(e.slice(ne,re)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case nn.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=hn(e,re);break;case nn.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=hn(e,re);break;case nn.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:Un.Zlib,settings:null},this.readContiguousElements(e.slice(ne,re));break;case nn.ContentCompAlgo:if("decompress"!==(null==(J=null==(Y=this.currentDecodingInstruction)?void 0:Y.data)?void 0:J.type))break;this.currentDecodingInstruction.data.algorithm=hn(e,re);break;case nn.ContentCompSettings:if("decompress"!==(null==(ee=null==(Z=this.currentDecodingInstruction)?void 0:Z.data)?void 0:ee.type))break;this.currentDecodingInstruction.data.settings=Tl(e,re);break;case nn.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=ne+re,!0}decodeBlockData(e,t){oe(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(oe(r.data),"decompress"===r.data.type)if(r.data.algorithm===Un.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i,r;if(!(null==(i=this.currentSegment)?void 0:i.metadataTags))return;const n=this.currentSegment.metadataTags;if(null!=n.raw||(n.raw={}),null!=(r=n.raw)[e]||(r[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":null!=n.title||(n.title=t);break;case"description":null!=n.description||(n.description=t);break;case"artist":null!=n.artist||(n.artist=t);break;case"album":null!=n.album||(n.album=t);break;case"album_artist":null!=n.albumArtist||(n.albumArtist=t);break;case"genre":null!=n.genre||(n.genre=t);break;case"comment":null!=n.comment||(n.comment=t);break;case"lyrics":null!=n.lyrics||(n.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||null!=n.date||(n.date=e)}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.trackNumber||(n.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.tracksTotal||(n.tracksTotal=r))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.discNumber||(n.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.discsTotal||(n.discsTotal=r))}}}getDurationFromMetadata(e){return Y(this,null,function*(){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){oe(r.trackBacking);const e=yield r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(null!=t?t:1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=null!=t?t:0,i})}}class jn{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getFirstPacket(e){return Y(this,null,function*(){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)})}intoTimescale(e){return He(e*this.internalTrack.segment.timestampFactor)}getPacket(e,t){return Y(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=Re(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1<t.blocks.length)return{blockIndex:i.blockIndex+1,correctBlockFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{blockIndex:0,correctBlockFound:!0}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}getKeyPacket(e,t){return Y(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=Ne(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)})}getNextKeyPacket(e,t){return Y(this,null,function*(){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return oe(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}fetchPacketInCluster(e,t,i){return Y(this,null,function*(){var r,n;if(-1===t)return null;const s=e.trackData.get(this.internalTrack.id).blocks[t];if(oe(s),s.decoded||(s.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,s.data),s.decoded=!0),!s.postProcessed){if("prores"===(null==(r=this.internalTrack.info)?void 0:r.codec)){if(!(s.data.length>=8&&105===s.data[4]&&99===s.data[5]&&112===s.data[6]&&102===s.data[7])){const e=new Uint8Array(s.data.length+8);me(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(s.data,8),s.data=e}}s.postProcessed=!0}const a=i.metadataOnly?br:s.data,o=s.timestamp/this.internalTrack.segment.timestampFactor,l=s.duration/this.internalTrack.segment.timestampFactor,c={};s.mainAdditional&&"video"===(null==(n=this.internalTrack.info)?void 0:n.type)&&this.internalTrack.info.alphaMode&&(c.alpha=i.metadataOnly?br:s.mainAdditional,c.alphaByteLength=s.mainAdditional.byteLength);const u=new Tr(a,s.isKeyFrame?"key":"delta",o,l,e.dataStartPos+t,s.data.byteLength,c);return this.packetToClusterLocation.set(u,{cluster:e,blockIndex:t}),u})}performClusterLookup(e,t,i,r,n){return Y(this,null,function*(){var s,a,o,l;const{demuxer:c,segment:u}=this.internalTrack;let d=null,h=null,f=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,n);-1!==i&&(h=e,f=i)}const m=Re(this.internalTrack.cuePoints,i,e=>e.time),p=-1!==m?this.internalTrack.cuePoints[m]:null,g=Re(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),k=-1!==g?this.internalTrack.clusterPositionCache[g]:null,y=Math.max(null!=(s=null==p?void 0:p.clusterPosition)?s:0,null!=(a=null==k?void 0:k.elementStartPos)?a:0)||null;let b;for(e?null===y||e.elementStartPos>=y?(b=e.elementEndPos,d=e):b=y:b=null!=y?y:u.clusterSeekStartPos;null===u.elementEndPos||b<=u.elementEndPos-2;){if(d){const e=d.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=c.reader.requestSliceRange(b,2,cn);if(ct(e)&&(e=yield e),!e)break;const i=b,s=pn(e);if(!s||!on.includes(s.id)&&s.id!==nn.Void){const e=yield Tn(c.reader,i,on,Math.min(null!=(o=u.elementEndPos)?o:1/0,i+Hn));if(e){b=e;continue}break}const a=s.id;let l=s.size;const m=e.filePos;if(a===nn.Cluster){d=yield c.readCluster(i,u),l=d.elementEndPos-m;const{blockIndex:e,correctBlockFound:r}=t(d);if(r)return this.fetchPacketInCluster(d,e,n);-1!==e&&(h=d,f=e)}if(void 0===l){oe(a!==nn.Cluster);l=(yield bn(c.reader,m,ln,u.elementEndPos)).pos-m}const p=m+l;if(null===u.elementEndPos){let e=c.reader.requestSliceRange(p,2,cn);if(ct(e)&&(e=yield e),!e)break;if(fn(e)===nn.Segment){u.elementEndPos=p;break}}b=p}if(p&&(!h||h.elementStartPos<p.clusterPosition)){const e=this.internalTrack.cuePoints[m-1];oe(!e||e.time<p.time);const i=null!=(l=null==e?void 0:e.time)?l:-1/0;return this.performClusterLookup(null,t,i,r,n)}return h?this.fetchPacketInCluster(h,f,n):null})}}class Kn extends jn{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.info.rotation}getColorSpace(){return Y(this,null,function*(){var e,t,i,r;const n=yield this.getDecoderConfig();return n?{primaries:null==(e=n.colorSpace)?void 0:e.primaries,transfer:null==(t=n.colorSpace)?void 0:t.transfer,matrix:null==(i=n.colorSpace)?void 0:i.matrix,fullRange:null==(r=n.colorSpace)?void 0:r.fullRange}:this.internalTrack.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return this.internalTrack.info.alphaMode||"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)})}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e,t,i,r,n;let s=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(s=yield this.getFirstPacket({}));const a={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&s?$t(s.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&s?ni(s.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&s?gi(s.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&s?yi(s.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&s?bi(s.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!Se(this.internalTrack.info.colorSpace)){const n=ir(a);null!=(e=this.internalTrack.info.colorSpace).primaries||(e.primaries=n.primaries),null!=(t=this.internalTrack.info.colorSpace).transfer||(t.transfer=n.transfer),null!=(i=this.internalTrack.info.colorSpace).matrix||(i.matrix=n.matrix),null!=(r=this.internalTrack.info.colorSpace).fullRange||(r.fullRange=n.fullRange)}const o={codec:tr(a),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(n=this.internalTrack.info.codecDescription)?n:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class Xn extends jn{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Wi(e.data)}return{codec:rr({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const $n=(e,t,i,r=null)=>Y(null,null,function*(){const n=q(2,16);let s=t;for(;null===i||s<i;){const t=null!==i?Math.min(n,i-s):n;let a=e.requestSliceRange(s,4,t);if(ct(a)&&(a=yield a),!a||a.length<4)break;for(;a.remainingLength>=4;){const t=a.filePos,i=Cl(a),n=null!==e.fileSize?e.fileSize-s:null,o=fr(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&kr(o.header.channel)===kr(r.channel)))return{header:o.header,startPos:s};a.filePos=t+o.bytesAdvanced,s=a.filePos}}return null});class Gn extends yr{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new xe,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new Qn(this)]}))()})}advanceReader(){return Y(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=Xl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=yield $n(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=hr(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(ct(r)&&(r=yield r),r){const n=Cl(r);if(n===ur||n===dr){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(ct(t)&&(t=yield t),t){const e=Tl(t,12),i=me(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&pr.FrameCount?i.getUint32(4,!1):null,fileSize:r&pr.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const n=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:n,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame})}getMimeType(){return Y(this,null,function*(){return"audio/mpeg"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=!0;let n=this.reader.requestSlice(i.filePos,r.size);if(ct(n)&&(n=yield n),!n)break;$l(n,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=Wl){let e=this.reader.requestSlice(this.reader.fileSize-Wl,Wl);ct(e)&&(e=yield e),oe(e);"TAG"===Nl(e,3)&&jl(e,this.metadataTags)}return this.metadataTags}finally{e()}})}}class Qn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){const e=this.demuxer;if(oe(null!==e.firstFrameHeader),oe(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,n=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(n<<t):2===i?144*r/n:12*r/n*4),a=(e.reader.fileSize-e.firstFrameHeaderPos)/s;return Math.round(a)*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}var t,i,r,n;return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getCodec(){return"mp3"}getInternalCodecId(){return null}getNumberOfChannels(){return oe(this.demuxer.firstFrameHeader),kr(this.demuxer.firstFrameHeader.channel)}getSampleRate(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.firstFrameHeader),{codec:"mp3",numberOfChannels:kr(this.demuxer.firstFrameHeader.channel),sampleRate:this.demuxer.firstFrameHeader.sampleRate}})}getPacketAtIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.dataSize)}return new Tr(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=_e(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);yield this.demuxer.advanceReader()}}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Yn=1399285583,Jn=new Uint32Array(256);for(let Cc=0;Cc<256;Cc++){let e=Cc<<24;for(let t=0;t<8;t++)e=2147483648&e?e<<1^79764919:e<<1;Jn[Cc]=e>>>0&4294967295}const Zn=e=>{const t=me(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let n=0;n<e.length;n++){const t=e[n];r=(r<<8^Jn[r>>>24^t])>>>0}return t.setUint32(22,i,!0),r},es=(e,t,i)=>{let r=0,n=null;if(e.length>0)if("vorbis"===t.codec){oe(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,a=(e[0]&s)>>1;if(a>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let o=i;const l=t.vorbisInfo.modeBlockflags[a];if(n=t.vorbisInfo.blocksizes[l],1===l){const i=1+(1|s),r=e[0]&i?1:0;o=t.vorbisInfo.blocksizes[r]}r=null!==o?o+n>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:Ti[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:n}},ts=27,is=282,rs=e=>{const t=e.filePos;if(Bl(e)!==Yn)return null;e.skip(1);const i=vl(e),r=Al(e),n=Bl(e),s=Bl(e),a=Bl(e),o=vl(e),l=new Uint8Array(o);for(let d=0;d<o;d++)l[d]=vl(e);const c=27+o,u=l.reduce((e,t)=>e+t,0);return{headerStartPos:t,totalSize:c+u,dataStartPos:t+c,dataSize:u,headerType:i,granulePosition:r,serialNumber:n,sequenceNumber:s,checksum:a,lacingValues:l}},ns=(e,t)=>{for(;e.filePos<t-3;){const t=Bl(e),i=79;if((255&t)===i||(t>>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===Yn)return!0;e.skip(1)}}return!1};class ss extends yr{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,ts,is);if(ct(t)&&(t=yield t),!t)break;const i=rs(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=yield this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?yield this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&(yield this.readOpusMetadata(e,t)),null!==t.codecInfo.codec&&this.trackBackings.push(new as(t,this)))}}))()})}readVorbisMetadata(e,t){return Y(this,null,function*(){let i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=yield this.findNextPacketStart(r),!i)return;const n=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!n)return;if(3!==r.data[0]||5!==n.data[0])return;const s=[],a=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};a(e.data.length),a(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+n.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(n.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=n;const l=me(e.data);t.numberOfChannels=l.getUint8(11),t.sampleRate=l.getUint32(12,!0);const c=l.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&c),1<<(c>>4)],modeBlockflags:vi(n.data).modeBlockflags},Ii(r.data.subarray(7),this.metadataTags)})}readOpusMetadata(e,t){return Y(this,null,function*(){const i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const n=(e=>{const t=me(e),i=t.getUint8(9),r=t.getUint16(10,!0),n=t.getUint32(12,!0),s=t.getInt16(16,!0),a=t.getUint8(18);let o=null;return a&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:n,outputGain:s,channelMappingFamily:a,channelMappingTable:o}})(e.data);t.numberOfChannels=n.outputChannelCount,t.sampleRate=nr,t.codecInfo.opusInfo={preSkip:n.preSkip},Ii(r.data.subarray(8),this.metadataTags)})}readPacket(e,t){return Y(this,null,function*(){oe(t<e.lacingValues.length);let i=0;for(let u=0;u<t;u++)i+=e.lacingValues[u];let r=e,n=i,s=t;const a=[];e:for(;;){let t=this.reader.requestSlice(r.dataStartPos,r.dataSize);ct(t)&&(t=yield t),oe(t);const o=Tl(t,r.dataSize);for(;;){if(s===r.lacingValues.length){a.push(o.subarray(i,n));break}const e=r.lacingValues[s];if(n+=e,e<255){a.push(o.subarray(i,n));break e}s++}let l=r.headerStartPos+r.totalSize;for(;;){let t=this.reader.requestSliceRange(l,ts,is);if(ct(t)&&(t=yield t),!t)return null;const i=rs(t);if(!i)return null;if(r=i,r.serialNumber===e.serialNumber)break;l=r.headerStartPos+r.totalSize}i=0,n=0,s=0}const o=a.reduce((e,t)=>e+t.length,0);if(0===o)return null;const l=new Uint8Array(o);let c=0;for(let e=0;e<a.length;e++){const t=a[e];l.set(t,c),c+=t.length}return{data:l,endPage:r,endSegmentIndex:s}})}findNextPacketStart(e){return Y(this,null,function*(){if(e.endSegmentIndex<e.endPage.lacingValues.length-1)return{startPage:e.endPage,startSegmentIndex:e.endSegmentIndex+1};if(!!(4&e.endPage.headerType))return null;let t=e.endPage.headerStartPos+e.endPage.totalSize;for(;;){let i=this.reader.requestSliceRange(t,ts,is);if(ct(i)&&(i=yield i),!i)return null;const r=rs(i);if(!r)return null;if(r.serialNumber===e.endPage.serialNumber)return{startPage:r,startSegmentIndex:0};t=r.headerStartPos+r.totalSize}})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();return(e=>{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(yield Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})))).filter(Boolean)})})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}class as{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new xe,this.internalSampleRate="opus"===e.codecInfo.codec?nr:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return oe(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}getDecoderConfig(){return Y(this,null,function*(){var e;return oe(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:null!=(e=this.bitstream.description)?e:void 0}})}getName(){return null}getLanguageCode(){return We}getDisposition(){return V(H({},Ct),{primary:!1})}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(oe(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:n}=es(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new Tr(i.metadataOnly?br:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:n}),s}getFirstPacket(e){return Y(this,null,function*(){oe(this.bitstream.lastMetadataPacket);const t=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(oe(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=yield this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=yield this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const n=i.timestampInSamples+i.durationInSamples,s=yield this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:n,vorbisLastBlocksize:i.vorbisBlockSize},t)})}getPacket(e,t){return Y(this,null,function*(){var i,r;if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const n=He(e*this.internalSampleRate);if(0===n)return this.getFirstPacket(t);if(n<0)return null;oe(this.bitstream.lastMetadataPacket);const s=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!s)return null;let a=s.startPage,o=this.demuxer.reader.fileSize;const l=[a];e:for(;a.headerStartPos+a.totalSize<o;){const e=a.headerStartPos,t=Math.floor((e+o)/2);let i=t;for(;;){const e=Math.min(i+65307,o-ts);let r=this.demuxer.reader.requestSlice(i,e-i);ct(r)&&(r=yield r),oe(r);if(!ns(r,e)){o=t+ts;continue e}let s=this.demuxer.reader.requestSliceRange(r.filePos,ts,is);ct(s)&&(s=yield s),oe(s);const c=rs(s);oe(c);let u=!1;if(c.serialNumber===this.bitstream.serialNumber)u=!0;else{let e=this.demuxer.reader.requestSlice(c.headerStartPos,c.totalSize);ct(e)&&(e=yield e),oe(e);const t=Tl(e,c.totalSize);u=Zn(t)===c.checksum}if(!u){i=c.headerStartPos+4;continue}if(u&&c.serialNumber!==this.bitstream.serialNumber){i=c.headerStartPos+c.totalSize;continue}if(!(-1===c.granulePosition)){this.granulePositionToTimestampInSamples(c.granulePosition)>n?o=c.headerStartPos:(a=c,l.push(c));continue e}i=c.headerStartPos+c.totalSize}}let c=s.startPage;for(const e of l){if(e.granulePosition===a.granulePosition)break;(!c||e.headerStartPos>c.headerStartPos)&&(c=e)}let u=c;const d=[u];for(;u.serialNumber!==this.bitstream.serialNumber||u.granulePosition!==a.granulePosition;){const e=u.headerStartPos+u.totalSize;let t=this.demuxer.reader.requestSliceRange(e,ts,is);ct(t)&&(t=yield t),oe(t);const i=rs(t);oe(i),u=i,u.serialNumber===this.bitstream.serialNumber&&d.push(u)}oe(-1!==u.granulePosition);let h,f,m=null,p=u,g=0;if(u.headerStartPos===s.startPage.headerStartPos)h=this.granulePositionToTimestampInSamples(0),f=!0,m=0;else{h=0,f=!1;for(let t=u.lacingValues.length-1;t>=0;t--){if(u.lacingValues[t]<255){m=t+1;break}}if(null===m)throw new Error("Invalid page with granule position: no packets end on this page.");g=m-1;const e={data:br,endPage:p,endSegmentIndex:g};if(yield this.demuxer.findNextPacketStart(e)){const e=ls(d,u,m);oe(e);const t=os(d,e.page,e.segmentIndex);t&&(u=t.page,m=t.segmentIndex)}else for(;;){const e=ls(d,u,m);if(!e)break;const t=os(d,e.page,e.segmentIndex);if(!t)break;if(u=t.page,m=t.segmentIndex,e.page.headerStartPos!==p.headerStartPos){p=e.page,g=e.segmentIndex;break}}}let k=null,y=null;for(;null!==u;){oe(null!==m);const e=yield this.demuxer.readPacket(u,m);if(!e)break;if(!(u.headerStartPos===s.startPage.headerStartPos&&m<s.startSegmentIndex)){let s=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:h,vorbisLastBlocksize:null!=(i=null==y?void 0:y.vorbisBlockSize)?i:null},t);oe(s);let a=this.encodedPacketToMetadata.get(s);if(oe(a),f||e.endPage.headerStartPos!==p.headerStartPos||e.endSegmentIndex!==g?h+=a.durationInSamples:(h=this.granulePositionToTimestampInSamples(u.granulePosition),f=!0,s=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:h-a.durationInSamples,vorbisLastBlocksize:null!=(r=null==y?void 0:y.vorbisBlockSize)?r:null},t),oe(s),a=this.encodedPacketToMetadata.get(s),oe(a)),k=s,y=a,f&&(Math.max(h,0)>n||Math.max(a.timestampInSamples,0)===n))break}const a=yield this.demuxer.findNextPacketStart(e);if(!a)break;u=a.startPage,m=a.startSegmentIndex}return k})}getPacketSequential(e,t){return Y(this,null,function*(){const i=yield this.sequentialScanMutex.acquire();try{const i=He(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=Re(this.sequentialScanCache,i,e=>e.timestampInSamples);let n;if(-1!==r){const e=this.sequentialScanCache[r];n=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else n=yield this.getFirstPacket(t);let s=0;for(;n&&n.timestamp<e;){const i=yield this.getNextPacket(n,t);if(!i||i.timestamp>e)break;if(n=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(n);oe(e),this.sequentialScanCache.length>0&&oe(ce(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return n}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const os=(e,t,i)=>{let r=t,n=i;e:for(;;){for(n--;n>=0;n--){if(r.lacingValues[n]<255){n++;break e}}oe(-1===n);if(!(1&r.headerType)){n=0;break}const t=De(e,e=>e.headerStartPos<r.headerStartPos);if(!t)return null;r=t,n=r.lacingValues.length}if(oe(-1!==n),n===r.lacingValues.length){const t=e[e.indexOf(r)+1];oe(t),r=t,n=0}return{page:r,segmentIndex:n}},ls=(e,t,i)=>{if(i>0)return{page:t,segmentIndex:i-1};const r=De(e,e=>e.headerStartPos<t.headerStartPos);return r?{page:r,segmentIndex:r.lacingValues.length-1}:null};var cs,us;(us=cs||(cs={}))[us.PCM=1]="PCM",us[us.IEEE_FLOAT=3]="IEEE_FLOAT",us[us.ALAW=6]="ALAW",us[us.MULAW=7]="MULAW",us[us.EXTENSIBLE=65534]="EXTENSIBLE";class ds extends yr{constructor(e){super(e),this.metadataPromise=null,this.dataStart=-1,this.dataSize=-1,this.audioInfo=null,this.trackBackings=[],this.lastKnownPacketIndex=0,this.metadataTags={},this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){var e,t;let i=this.reader.requestSlice(0,12);ct(i)&&(i=yield i),oe(i);const r=Nl(i,4),n="RIFX"!==r,s="RF64"===r,a=xl(i,n);let o=s?this.reader.fileSize:Math.min(a+8,null!=(e=this.reader.fileSize)?e:1/0);if("WAVE"!==Nl(i,4))throw new Error("Invalid WAVE file - wrong format");let l=0,c=null,u=i.filePos;for(;null===o||u<o;){let e=this.reader.requestSlice(u,8);if(ct(e)&&(e=yield e),!e)break;const i=Nl(e,4),r=xl(e,n),a=e.filePos;if(s&&0===l&&"ds64"!==i)throw new Error('Invalid RF64 file: First chunk must be "ds64".');if("fmt "===i)yield this.parseFmtChunk(a,r,n);else if("data"===i){if(null!=c||(c=r),this.dataStart=e.filePos,this.dataSize=Math.min(c,(null!=o?o:1/0)-this.dataStart),null===this.reader.fileSize)break}else if("ds64"===i){let e=this.reader.requestSlice(a,r);if(ct(e)&&(e=yield e),!e)break;const i=_l(e,n);c=_l(e,n),o=Math.min(i+8,null!=(t=this.reader.fileSize)?t:1/0)}else"LIST"===i?yield this.parseListChunk(a,r,n):"ID3 "!==i&&"id3 "!==i||(yield this.parseId3Chunk(a,r));u=a+r+(1&r),l++}if(!this.audioInfo)throw new Error('Invalid WAVE file - missing "fmt " chunk');if(-1===this.dataStart)throw new Error('Invalid WAVE file - missing "data" chunk');const d=this.audioInfo.blockSizeInBytes;this.dataSize=Math.floor(this.dataSize/d)*d,this.trackBackings.push(new fs(this))}))()})}parseFmtChunk(e,t,i){return Y(this,null,function*(){let r=this.reader.requestSlice(e,t);if(ct(r)&&(r=yield r),!r)return;let n=wl(r,i);const s=wl(r,i),a=xl(r,i);r.skip(4);const o=wl(r,i);let l;if(l=14===t?8:wl(r,i),t>=18&&357!==n){const e=wl(r,i),s=t-18;if(Math.min(s,e)>=22&&n===cs.EXTENSIBLE){r.skip(6);const e=Tl(r,16);n=e[0]|e[1]<<8}}if(n!==cs.MULAW&&n!==cs.ALAW||(l=8),n!==cs.PCM&&n!==cs.IEEE_FLOAT&&n!==cs.ALAW&&n!==cs.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${n}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(n===cs.PCM&&![8,16,24,32].includes(l))throw new Error(`Unsupported WAVE PCM bit depth (${l}). Only 8, 16, 24, and 32 bits are supported.`);if(n===cs.IEEE_FLOAT&&![32,64].includes(l))throw new Error(`Unsupported WAVE float bit depth (${l}). Only 32 and 64 bits are supported.`);this.audioInfo={format:n,numberOfChannels:s,sampleRate:a,sampleSizeInBytes:Math.ceil(l/8),blockSizeInBytes:o}})}parseListChunk(e,t,i){return Y(this,null,function*(){var r,n,s,a,o,l,c,u,d,h,f;let m=this.reader.requestSlice(e,t);if(ct(m)&&(m=yield m),!m)return;const p=Nl(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=Nl(m,4),t=xl(m,i),p=Tl(m,t);let k=0;for(let i=0;i<p.length&&0!==p[i];i++)k++;const y=String.fromCharCode(...p.subarray(0,k));switch(null!=(r=this.metadataTags).raw||(r.raw={}),this.metadataTags.raw[e]=y,e){case"INAM":case"TITL":null!=(n=this.metadataTags).title||(n.title=y);break;case"TIT3":null!=(s=this.metadataTags).description||(s.description=y);break;case"IART":null!=(a=this.metadataTags).artist||(a.artist=y);break;case"IPRD":null!=(o=this.metadataTags).album||(o.album=y);break;case"IPRT":case"ITRK":case"TRCK":{const e=y.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=(l=this.metadataTags).trackNumber||(l.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(c=this.metadataTags).tracksTotal||(c.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||null!=(u=this.metadataTags).date||(u.date=e)}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&(null!=(d=this.metadataTags).date||(d.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":null!=(h=this.metadataTags).genre||(h.genre=y);break;case"ICMT":case"CMNT":case"COMM":null!=(f=this.metadataTags).comment||(f.comment=y)}g+=8+t+(1&t)}})}parseId3Chunk(e,t){return Y(this,null,function*(){let i=this.reader.requestSlice(e,t);if(ct(i)&&(i=yield i),!i)return;const r=Xl(i);if(r){const n=t-Hl;if(r.size=Math.min(r.size,n),r.size>0){const t=i.slice(e+Hl,r.size);$l(t,r,this.metadataTags)}}})}getCodec(){if(oe(this.audioInfo),this.audioInfo.format===cs.MULAW)return"ulaw";if(this.audioInfo.format===cs.ALAW)return"alaw";if(this.audioInfo.format===cs.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===cs.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}oe(!1)}getMimeType(){return Y(this,null,function*(){return"audio/wav"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}const hs=2048;class fs{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.format}getDecoderConfig(){return Y(this,null,function*(){const e=this.demuxer.getCodec();return e?(oe(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null})}getNumberOfChannels(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return oe(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getDisposition(){return H({},Ct)}getPacketAtIndex(e,t){return Y(this,null,function*(){oe(e>=0),oe(this.demuxer.audioInfo);const i=e*hs*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(hs*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(ct(e)&&(e=yield e),!e)return null}let n;if(t.metadataOnly)n=br;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);ct(e)&&(e=yield e),oe(e),n=Tl(e,r)}const s=e*hs/this.demuxer.audioInfo.sampleRate,a=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new Tr(n,"key",s,a,e,r)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getPacket(e,t){return Y(this,null,function*(){oe(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/hs,(this.demuxer.dataSize-1)/(hs*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=yield this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;oe(null===this.demuxer.reader.fileSize);let n=yield this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;n;){const e=yield this.getNextPacket(n,t);if(!e)break;n=e}return n})}getNextPacket(e,t){oe(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/hs);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const ms=e=>{const t=e.filePos,i=Tl(e,9),r=new Bt(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const n=r.readBits(1),s=r.readBits(2)+1,a=r.readBits(4);if(15===a)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const l=r.readBits(13);r.skipBits(11);const c=r.readBits(2)+1;if(1!==c)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===n?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:a,channelConfiguration:o,frameLength:l,numberOfAacFrames:c,crcCheck:u,startPos:t}},ps=1024;class gs extends yr{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new xe,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();oe(this.firstFrameHeader),this.trackBackings=[new ks(this)]}))()})}advanceReader(){return Y(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=Xl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=ms(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=Et[t.samplingFrequencyIndex];oe(void 0!==i);const r=ps/i,n={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(n),this.nextTimestampInSamples+=ps,this.lastLoadedPos=t.startPos+t.frameLength})}getMimeType(){return Y(this,null,function*(){return"audio/aac"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,Hl);if(ct(t)&&(t=yield t),!t)break;const i=Xl(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(ct(r)&&(r=yield r),!r)break;$l(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}})}}class ks{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/ps}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getCodec(){return"aac"}getInternalCodecId(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){oe(this.demuxer.firstFrameHeader);const e=_t[this.demuxer.firstFrameHeader.channelConfiguration];return oe(void 0!==e),e}getSampleRate(){oe(this.demuxer.firstFrameHeader);const e=Et[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return oe(void 0!==e),e}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}})}getPacketAtIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.dataSize)}return new Tr(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=_e(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);yield this.demuxer.advanceReader()}}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}class ys extends yr{constructor(e){super(e),this.loadedSamples=[],this.metadataPromise=null,this.trackBacking=null,this.metadataTags={},this.audioInfo=null,this.lastLoadedPos=null,this.blockingBit=null,this.readingMutex=new xe,this.lastSampleLoaded=!1,this.reader=e._reader}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),oe(this.trackBacking),[this.trackBacking]})}getMimeType(){return Y(this,null,function*(){return"audio/flac"})}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){var e;let t=0;for(;;){let e=this.reader.requestSlice(t,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const i=Xl(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);ct(r)&&(r=yield r),oe(r),$l(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||t<this.reader.fileSize;){let i=this.reader.requestSlice(t,4);if(ct(i)&&(i=yield i),t+=4,null===i)throw new Error(`Metadata block at position ${t} is too small! Corrupted file.`);oe(i);const r=vl(i),n=Pl(i),s=0!==(128&r);switch(127&r){case Si.STREAMINFO:{let e=this.reader.requestSlice(t,n);if(ct(e)&&(e=yield e),oe(e),null===e)throw new Error(`StreamInfo block at position ${t} is too small! Corrupted file.`);const i=Tl(e,34),r=new Bt(i),s=r.readBits(16),a=r.readBits(16),o=r.readBits(24),l=r.readBits(24),c=r.readBits(20),u=r.readBits(3)+1;r.readBits(5);const d=r.readBits(36);r.skipBits(128);const h=new Uint8Array(42);h.set(new Uint8Array([102,76,97,67]),0),h.set(new Uint8Array([128,0,0,34]),4),h.set(i,8),this.audioInfo={numberOfChannels:u,sampleRate:c,totalSamples:d,minimumBlockSize:s,maximumBlockSize:a,minimumFrameSize:o,maximumFrameSize:l,description:h},this.trackBacking=new bs(this);break}case Si.VORBIS_COMMENT:{let e=this.reader.requestSlice(t,n);ct(e)&&(e=yield e),oe(e),Ii(Tl(e,n),this.metadataTags);break}case Si.PICTURE:{let i=this.reader.requestSlice(t,n);ct(i)&&(i=yield i),oe(i);const r=Cl(i),s=Cl(i),a=pe.decode(Tl(i,s)),o=Cl(i),l=pe.decode(Tl(i,o));i.skip(16);const c=Cl(i),u=Tl(i,c);null!=(e=this.metadataTags).images||(e.images=[]),this.metadataTags.images.push({data:u,mimeType:a,kind:3===r?"coverFront":4===r?"coverBack":"unknown",description:l});break}}if(t+=n,s){this.lastLoadedPos=t;break}}if(!this.audioInfo)throw new Error("Missing STREAMINFO metadata block! Corrupted FLAC file.")}))()})}readNextFlacFrame(e){return Y(this,arguments,function*({startPos:e,isFirstPacket:t}){oe(this.audioInfo);const i=this.audioInfo.maximumBlockSize*this.audioInfo.numberOfChannels*4+16+2,r=this.audioInfo.minimumFrameSize||10,n=(this.audioInfo.maximumFrameSize||i)+16,s=yield this.reader.requestSliceRange(e,16,n);if(!s)return null;const a=this.readFlacFrameHeader({slice:s,isFirstPacket:t});if(!a)return null;for(s.filePos=e+r;;){if(s.filePos>s.end-6)return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:s.end-e,isLastFrame:!0};if(255===vl(s)){const t=s.filePos;if(vl(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-a.num!==1){s.filePos=t;continue}}else if(r.num-a.num!==a.blockSize){s.filePos=t;continue}return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:i,isLastFrame:!1}}}})}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=Tl(e,4),n=new Bt(r);if(32764!==n.readBits(15))return null;if(null===this.blockingBit){oe(t);const e=n.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){oe(!t);if(1!==n.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");oe(!t);if(0!==n.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*q(2,e):6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?q(2,e):null)(n.readBits(4));if(!s)return null;oe(this.audioInfo);const a=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(n.readBits(4),this.audioInfo.sampleRate);if(!a)return null;n.readBits(4),n.readBits(3);if(0!==n.readBits(1))return null;const o=(e=>{let t=0;const i=new Bt(Tl(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],n=t-1,s=new Bt(Tl(e,n)),a=8-t-1;for(let o=0;o<a;o++)r.unshift(i.readBits(1));for(let o=0;o<n;o++)for(let e=0;e<8;e++){const t=s.readBits(1);e<2||r.unshift(t)}return r.reduce((e,t,i)=>e|t<<i,0)})(e),l=((e,t)=>"uncommon-u16"===t?Sl(e)+1:"uncommon-u8"===t?vl(e)+1:"number"===typeof t?t:(Oe(t),void oe(!1)))(e,s),c=((e,t)=>"uncommon-u16"===t?Sl(e):"uncommon-u16-10"===t?10*Sl(e):"uncommon-u8"===t?vl(e):"number"===typeof t?t:null)(e,a);if(null===c)return null;if(c!==this.audioInfo.sampleRate)return null;const u=e.filePos-i,d=vl(e);e.skip(-u),e.skip(-1);const h=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(Tl(e,u));return d!==h?null:{num:o,blockSize:l,sampleRate:c}}advanceReader(){return Y(this,null,function*(){yield this.readMetadata(),oe(null!==this.lastLoadedPos),oe(this.audioInfo);const e=this.lastLoadedPos,t=yield this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)})}}class bs{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return We}getTimeResolution(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return oe(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}})}getPacket(e,t){return Y(this,null,function*(){if(oe(this.demuxer.audioInfo),e<0)return null;const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){yield this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],n=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(n+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);yield this.demuxer.advanceReader()}}finally{i()}})}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}getPacketAtIndex(e,t){return Y(this,null,function*(){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.byteSize)}oe(this.demuxer.audioInfo);const n=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new Tr(r,"key",n,s,e,i.byteSize)})}getFirstPacket(e){return Y(this,null,function*(){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)})}}const Ts=9e4,vs=q(2,33),ws=188,Ss="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",Ps=new Set([133,134,162]),Is=new Set;class xs extends yr{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=this.reader.requestSlice(0,205);ct(e)&&(e=yield e),oe(e);const t=Tl(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=ws;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,n=!1,s=!1;for(;;){const e=yield this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=yield this.readSection(i,!0,!s);if(!t)break;const a=3,o=32;let l=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i);l=2===e.readBits(8)}}if(0!==t.pid||n)if(t.pid!==r&&!l||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=Bs(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(yield this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new As(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,yield r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=$t(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];oe(t);const i=Jt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const n=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;n>0&&s>0&&(n>s?(e.info.squarePixelWidth=Math.round(e.info.width*n/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/n))),e.info.colorSpace={primaries:ye[i.colourPrimaries],transfer:Te[i.transferCharacteristics],matrix:we[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=ni(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===Lt.SPS_NUT).nalUnits[0];oe(t);const i=ri(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:ye[i.colourPrimaries],transfer:Te[i.transferCharacteristics],matrix:we[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:tr({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(yield r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=yl.tempFromBytes(r.suppliedPacket.data),i=ms(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=_t[i.channelConfiguration],e.info.sampleRate=Et[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=Cl(yl.tempFromBytes(r.suppliedPacket.data)),i=fr(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=kr(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=Ci(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=xi[t.acmod]+t.lfeon,e.info.sampleRate=Mt[t.fscod]}else if("eac3"===e.info.codec){const t=_i(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=Ri(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Fi(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=qi(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:rr({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const n=e.readBits(10),l=e.pos+8*n;let c=!1;for(;e.pos<l;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(5===t&&i>=4){const t=e.readBits(32);c||(c=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=l;8*(r+a)-e.pos>o;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),n=e.pos+8*r;let s=!1,a=!1,o=!1;for(;e.pos<n;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(106===t)s=!0;else if(122===t||204===t)a=!0;else if(123===t)o=!0;else if(5===t&&i>=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let l=null;const u=c&&Ps.has(t)?130:t;switch(u){case 27:case 36:l={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",l={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:a?l={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?l={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(l={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:Is.has(t)||(Pt._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),Is.add(t))}l&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:l,referencePesPackets:[]})}s=!0}else{const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+a)-e.pos>o;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");n=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!n)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const a of this.elementaryStreams)a.initialized&&("video"===a.info.type?this.trackBackingEntries.push(new _s(a)):this.trackBackingEntries.push(new Rs(a)))}))()})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackingEntries})}getMetadataTags(){return Y(this,null,function*(){return{}})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(yield Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null}))))})}readSection(e,t,i=!1){return Y(this,null,function*(){let r=e,n=e;const s=[];let a,o=0,l=null,c=!0,u=0;for(;;){const e=yield this.readPacket(n);if(n+=this.packetStride,!e)break;if(l){if(e.pid!==l.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;l=e}const a=!!(2&e.adaptationFieldControl),d=!!(1&e.adaptationFieldControl);let h=0;if(a&&(h=1+e.body[0],e===l&&h>1&&(u=e.body[1]>>6&1)),d&&(0===h?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(h)),o+=e.body.byteLength-h)),r=n,!t&&o>=64){c=!1;break}if(-1!==_e(this.sectionEndPositions,r,e=>e)){c=!1;break}}if(c){const e=Re(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!l)return null;if(1===s.length)a=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);a=new Uint8Array(e);let t=0;for(const i of s)a.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:l.pid,payload:a,randomAccessIndicator:u}})}readPacketHeader(e){return Y(this,null,function*(){let t=this.reader.requestSlice(e,4);if(ct(t)&&(t=yield t),!t)return null;if(71!==vl(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=Sl(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:vl(t)>>4&3}})}readPacket(e){return Y(this,null,function*(){let t=this.reader.requestSlice(e,ws);if(ct(t)&&(t=yield t),!t)return null;const i=Tl(t,ws);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}})}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=vs-t?-vs:vs}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e<t?e+i:e}}const Cs=(e,t,i)=>{if(t.payload.byteLength<3)return null;const r=new Bt(t.payload);if(1!==r.readBits(24))return null;const n=r.readBits(8);if(r.skipBits(16),188===n||190===n||191===n||240===n||241===n||255===n||242===n||248===n)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let a=null;if(2===s||3===s)a=0,r.skipBits(4),a+=r.readBits(3)*(1<<30),r.skipBits(1),a+=32768*r.readBits(15),r.skipBits(1),a+=r.readBits(15),a=e.normalizeTimestamp(a);else if(i)throw new Error(Ss);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:a,randomAccessIndicator:t.randomAccessIndicator}},Bs=(e,t,i)=>{oe(null!==t.endPos);const r=Cs(e,t,i);if(!r)return null;const n=new Bt(t.payload);n.skipBits(32);const s=n.readBits(16);n.skipBits(16);const a=n.readBits(8),o=n.pos+8*a;n.pos=o;const l=o/8;oe(Number.isInteger(l));const c=t.payload.subarray(l,s>0?6+s:t.payload.byteLength);return V(H({},r),{data:c})};class Es{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,oe(r instanceof Es),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return We}getDisposition(){return V(H({},Ct),{primary:!1})}getTimeResolution(){return Ts}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new Tr(i.metadataOnly?br:e.data,r,e.pts/Ts,Math.max(t/Ts,0),e.sequenceNumber,e.data.byteLength)}getFirstPacket(e){return Y(this,null,function*(){const t=this.elementaryStream.firstSection;oe(t);const i=Bs(this.elementaryStream.demuxer,t,!0);oe(i);const r=new As(this.elementaryStream,i),n=new Ms(this,r),s=yield n.readNext();if(!s)return null;const a=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(a,n),this.packetSectionStarts.set(a,s.packet.sectionStartPos),a})}getNextPacket(e,t){return Y(this,null,function*(){let i=this.packetBuffers.get(e);if(i){const r=yield i.readNext();if(!r)return null;this.packetBuffers.delete(e);const n=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(n,i),this.packetSectionStarts.set(n,r.packet.sectionStartPos),n}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const n=this.elementaryStream.demuxer,s=yield n.readSection(r,!0);oe(s);const a=Bs(n,s,!0);oe(a);const o=new As(this.elementaryStream,a);i=new Ms(this,o);const l=e.sequenceNumber;for(;;){const e=yield i.readNext();if(!e)return null;if(e.packet.sequenceNumber>l){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}})}getNextKeyPacket(e,t){return Y(this,null,function*(){let i=e;for(;;){if(i=yield this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}})}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}doPacketLookup(e,t,i){return Y(this,null,function*(){var r,n,s,a,o,l;const c=He(e*Ts),u=this.elementaryStream.demuxer,{reader:d,seekChunkSize:h}=u,f=this.elementaryStream.pid,m=(e,t,i)=>Y(this,null,function*(){let r=e;for(;r<t;){const e=yield u.readPacketHeader(r);if(!e)return null;if(e.pid===f&&1===e.payloadUnitStartIndicator){const e=yield u.readSection(r,i);if(!e)return null;const t=Cs(u,e,!1);if(t&&null!==t.pts)return{pesPacketHeader:t,section:e}}r+=u.packetStride}return null}),p=this.elementaryStream.firstSection;oe(p);const g=Cs(u,p,!0);if(oe(g),c<g.pts)return null;let k;const y=this.elementaryStream.referencePesPackets,b=Re(y,c,e=>e.pts),T=-1!==b?y[b]:null;if(T&&c-T.pts<45e3)k=T.sectionStartPos;else{let e=0;if(null!==d.fileSize){const t=Math.ceil(d.fileSize/h);if(t>1){let i=0,r=t-1;for(e=i;i<=r;){const t=Math.floor((i+r)/2),n=Ke(t*h,u.packetStride)+g.sectionStartPos,s=n+h,a=yield m(n,s,!1);a?a.pesPacketHeader.pts<=c?(e=t,i=t+1):r=t-1:r=t-1}}}k=Ke(e*h,u.packetStride)+g.sectionStartPos}const v=yield m(k,null!=(r=d.fileSize)?r:1/0,!1);let w=null!=(n=null==v?void 0:v.pesPacketHeader)?n:null;w||(w=g);const S=this.getReorderSize(),P=(e,t)=>Y(this,null,function*(){var r,n;const s=yield u.readSection(e,!0);oe(s);const a=Bs(u,s,!0);oe(a);const o=new As(this.elementaryStream,a),l=new Ms(this,o);for(;;){if((null!=(n=null==(r=ce(l.presentationOrderPackets))?void 0:r.pts)?n:-1/0)>=c)break;if(!(yield l.readNextPacket()))break}const d=Ne(l.presentationOrderPackets,t);if(-1===d)return null;const h=l.presentationOrderPackets[d],f=0===d?0:h.pts-l.presentationOrderPackets[d-1].pts;for(;l.decodeOrderPackets[0]!==h;)l.decodeOrderPackets.shift();l.lastDuration=f;const m=yield l.readNext();oe(m);const p=this.createEncodedPacket(m.packet,m.duration,i);return this.packetBuffers.set(p,l),this.packetSectionStarts.set(p,m.packet.sectionStartPos),p});if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=w.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){if(e.pts>c)break e;w=e,Fs(this.elementaryStream,w);break}}}e+=u.packetStride}}e:for(let e=0;e<S+1;e++){let e=w.sectionStartPos-u.packetStride;for(;e>=u.packetOffset;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){w=e;break}}}e-=u.packetStride}}return P(w.sectionStartPos,e=>e.pts<=c)}{let e=k,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let r=null;const n=e<=g.sectionStartPos;let k,y=null;if(n)k=g,y=p;else{const t=yield m(e,null!=(s=d.fileSize)?s:1/0,i);k=null!=(a=null==t?void 0:t.pesPacketHeader)?a:null,y=null!=(o=null==t?void 0:t.section)?o:null}let b=!1,T=0;e:for(;k&&!(null!==t&&k.sectionStartPos>=t);){if(k.pts<=c){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===k.randomAccessIndicator;else{oe(y);const t=Bs(u,y,!0);oe(t);const i=new As(this.elementaryStream,t);yield i.markNextPacket(),e=1===(null==(l=i.suppliedPacket)?void 0:l.randomAccessIndicator)}e&&(r=k)}if(k.pts>c&&(b=!0),b&&(T++,T>S))break;let e=k.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,i);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){k=e,y=t,Fs(this.elementaryStream,k);break}}}e+=u.packetStride}}if(r){let e=r;if(0===T)e:for(let r=0;r<S;r++){let t=e.sectionStartPos-u.packetStride;for(;t>=u.packetOffset;){const r=yield u.readPacketHeader(t);if(!r)break e;if(r.pid===f&&1===r.payloadUnitStartIndicator){const r=yield u.readSection(t,i);if(r){const t=Cs(u,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=u.packetStride}}const t=yield P(e.sectionStartPos,e=>e.pts<=c&&1===e.randomAccessIndicator);return oe(t),t}if(n)return null;t=e,e=Math.max(Ke(e-g.sectionStartPos-h,u.packetStride)+g.sectionStartPos,g.sectionStartPos)}}})}}class _s extends Es{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}getColorSpace(){return Y(this,null,function*(){return this.elementaryStream.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return!1})}getDecoderConfig(){return Y(this,null,function*(){return oe(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Rs extends Es{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){return oe(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const Fs=(e,t)=>{const i=e.referencePesPackets,r=Re(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const n=i[r];if(t.pts<=n.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-n.sectionStartPos<s)return!1;if(r<i.length-1){const e=i[r+1];if(e.pts<t.pts)return!1;if(e.sectionStartPos-t.sectionStartPos<s)return!1}}return i.splice(r+1,0,t),!0};class As{constructor(e,t){this.currentPos=0,this.pesPackets=[],this.currentPesPacketIndex=0,this.currentPesPacketPos=0,this.endPos=0,this.lastSuppliedPesPacket=null,this.nextPts=null,this.suppliedPacket=null,this.elementaryStream=e,this.pid=e.pid,this.demuxer=e.demuxer,this.startingPesPacket=t}ensureBuffered(e){const t=this.endPos-this.currentPos;return t>=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return oe(e),e}bufferData(e){return Y(this,null,function*(){const t=this.endPos+e;for(;this.endPos<t;){let e;if(0===this.pesPackets.length)e=this.startingPesPacket;else{let t=ce(this.pesPackets).sectionEndPos;for(oe(null!==t);;){const i=yield this.demuxer.readPacketHeader(t);if(!i)return;if(i.pid===this.pid){const i=yield this.demuxer.readSection(t,!0);if(!i)return;const r=Bs(this.demuxer,i,!1);if(r){e=r;break}}t+=this.demuxer.packetStride}}this.pesPackets.push(e),this.endPos+=e.data.byteLength}})}readBytes(e){const t=this.getCurrentPesPacket(),i=this.currentPos-this.currentPesPacketPos,r=i+e;if(this.currentPos+=e,r<=t.data.byteLength)return t.data.subarray(i,r);const n=new Uint8Array(e);n.set(t.data.subarray(i));let s=t.data.byteLength-i;for(;;){this.advanceCurrentPacket();const t=this.getCurrentPesPacket(),i=e-s;if(i<=t.data.byteLength){n.set(t.data.subarray(0,i),s);break}n.set(t.data,s),s+=t.data.byteLength}return n}readU8(){let e=this.getCurrentPesPacket();const t=this.currentPos-this.currentPesPacketPos;return this.currentPos++,t<e.data.byteLength?e.data[t]:(this.advanceCurrentPacket(),e=this.getCurrentPesPacket(),e.data[0])}seekTo(e){if(e!==this.currentPos){if(e<this.currentPos)for(;e<this.currentPesPacketPos;){this.currentPesPacketIndex--;const e=this.getCurrentPesPacket();this.currentPesPacketPos-=e.data.byteLength}else for(;;){const t=this.getCurrentPesPacket();if(e<this.currentPesPacketPos+t.data.byteLength)break;this.currentPesPacketPos+=t.data.byteLength,this.currentPesPacketIndex++}this.currentPos=e}}skip(e){this.seekTo(this.currentPos+e)}advanceCurrentPacket(){this.currentPesPacketPos+=this.getCurrentPesPacket().data.byteLength,this.currentPesPacketIndex++}markNextPacket(){return Y(this,null,function*(){var e,t,i;oe(!this.suppliedPacket);const r=this.elementaryStream;if("video"===r.info.type){const e=r.info.codec,t=1024;if("avc"!==e&&"hevc"!==e)throw new Error("Unhandled.");const i="avc"===e?1:2;let n=null,s=!1,a=0;for(;;){let r=this.ensureBuffered(t);if(ct(r)&&(r=yield r),0===r)break;const o=this.currentPos,l=this.readBytes(r),c=l.byteLength;let u=0;for(;u<c;){const t=l.indexOf(0,u);if(-1===t||t>=c)break;u=t;const r=o+u;if(u+3>=c){this.seekTo(r);break}const d=l[u+1],h=l[u+2],f=l[u+3];let m=0;if(0===d&&0===h&&1===f?m=4:0===d&&1===h&&(m=3),0===m){u++;continue}const p=r;null!=n||(n=p);const g=u+m,k=g+i,y=6;if(k+("avc"===e?y:1)>c){this.seekTo(r);break}const b=l[g];let T,v,w;if("avc"===e)T=Ht(b),v=T===Nt.NON_IDR_SLICE||T===Nt.SLICE_DPA||T===Nt.IDR,w=T===Nt.SEI||T===Nt.SPS||T===Nt.PPS||T===Nt.AUD;else{T=ii(b);if(((1&b)<<5|l[g+1]>>3)>0){u+=m;continue}v=T<=Lt.RASL_R||T>=Lt.BLA_W_LP&&T<=21,w=T>=Lt.VPS_NUT&&T<=37||T===Lt.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let S=!1;if(v){let t;if("avc"===e){const e=l.subarray(k,k+y),i=ue(new Bt(e));t=!s||i<=a,a=i}else t=l[k]>>7===1;t&&(s?S=!0:s=!0)}else w&&s&&(S=!0);if(S){const e=p-n;return this.seekTo(n),this.supplyPacket(e,0)}u+=m}if(r<t)break}if(null!==n&&this.endPos>n){const e=this.endPos-n;return this.seekTo(n),this.supplyPacket(e,0)}}else{const n=r.info.codec,s=128;for(;;){let a=this.ensureBuffered(s);ct(a)&&(a=yield a);const o=this.currentPos;for(;this.currentPos-o<a;){const s=this.readU8();if("aac"===n){if(255!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(9);if(ct(t)&&(t=yield t),t<9)return;const i=this.readBytes(9),n=ms(yl.tempFromBytes(i));if(n){this.seekTo(e);let t=this.ensureBuffered(n.frameLength);return ct(t)&&(t=yield t),this.supplyPacket(t,Math.round(9216e4/r.info.sampleRate))}this.seekTo(e+1)}else{if("mp3"!==n){if("ac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(ct(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=i[4]>>6,a=63&i[4];if(3===n||a>37){this.seekTo(e+1);continue}const o=Bi[3*a+n];oe(void 0!==o),this.seekTo(e),t=this.ensureBuffered(o),ct(t)&&(t=yield t);const l=Math.round(13824e4/r.info.sampleRate);return this.supplyPacket(t,l)}if("eac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(ct(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=2*(((7&i[2])<<8|i[3])+1),a=3===i[4]>>6?3:i[4]>>4&3,o=Ei[a];this.seekTo(e),t=this.ensureBuffered(n),ct(t)&&(t=yield t);const l=256*o,c=Math.round(l*Ts/r.info.sampleRate);return this.supplyPacket(t,c)}if("dts"===n){if(127!==s&&100!==s)continue;this.skip(-1);const n=this.currentPos;let a=this.ensureBuffered(18);if(ct(a)&&(a=yield a),a<18)return;const o=this.readBytes(18),l=Hi(o);let c=l?null:Vi(o);if(!l&&!c){this.seekTo(n+1);continue}if(c&&!c.asset){this.seekTo(n);const t=Math.min(c.frameSize,4096);let i=this.ensureBuffered(t);ct(i)&&(i=yield i),c=null!=(e=Vi(this.readBytes(i)))?e:c}let u=l?l.frameSize:c.frameSize;if(l){let e=4*Math.ceil(l.frameSize/4);for(;;){this.seekTo(n);const t=e+10;let i=this.ensureBuffered(t);if(ct(i)&&(i=yield i),i<t)break;this.seekTo(n+e);const r=Vi(this.readBytes(10));if(!r)break;e+=r.frameSize,u=e}}const d=null!=(i=null==l?void 0:l.sampleCount)?i:null==(t=c.asset)?void 0:t.sampleCount;if(void 0===d){this.seekTo(n+1);continue}this.seekTo(n),a=this.ensureBuffered(u),ct(a)&&(a=yield a);const h=Math.round(d*Ts/r.info.sampleRate);return this.supplyPacket(a,h)}throw new Error("Unhandled.")}{if(255!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(4);if(ct(t)&&(t=yield t),t<4)return;const i=this.readBytes(4),n=me(i).getUint32(0),a=fr(n,null);if(a.header){this.seekTo(e);let t=this.ensureBuffered(a.header.totalSize);ct(t)&&(t=yield t);const i=a.header.audioSamplesInFrame*Ts/r.info.sampleRate;return this.supplyPacket(t,Math.round(i))}this.seekTo(e+1)}}}if(a<s)break}}})}supplyPacket(e,t){const i=this.getCurrentPesPacket();let r;if(this.lastSuppliedPesPacket===i)oe(null!==this.nextPts),r=this.nextPts;else{if(null===i.pts)throw new Error(Ss);r=i.pts,Fs(this.elementaryStream,i)}this.lastSuppliedPesPacket=i,this.nextPts=r+t;const n=i.sectionStartPos,s=n+(this.currentPos-this.currentPesPacketPos),a=this.readBytes(e);let o=i.randomAccessIndicator;if(0===o&&!this.elementaryStream.canBeTrustedWithKeyPackets)if("audio"===this.elementaryStream.info.type)o=1;else if(this.elementaryStream.info.decoderConfig){const e="key"===wi(this.elementaryStream.info.codec,this.elementaryStream.info.decoderConfig,a);o=Number(e)}this.suppliedPacket={pts:r,data:a,sequenceNumber:s,sectionStartPos:n,randomAccessIndicator:o},this.pesPackets.splice(0,this.currentPesPacketIndex),this.currentPesPacketIndex=0}}class Ms{constructor(e,t){this.decodeOrderPackets=[],this.reorderBuffer=[],this.presentationOrderPackets=[],this.reachedEnd=!1,this.lastDuration=0,this.backing=e,this.context=t,this.reorderSize=e.getReorderSize(),oe(this.reorderSize>=0)}readNext(){return Y(this,null,function*(){if(0===this.decodeOrderPackets.length){if(!(yield this.readNextPacket()))return null}yield this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(oe(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}})}readNextPacket(){return Y(this,null,function*(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||(yield this.context.markNextPacket()),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)})}ensureCurrentPacketHasNext(){return Y(this,null,function*(){const e=this.decodeOrderPackets[0];for(oe(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(yield this.readNextPacket()))break}})}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;i<this.reorderBuffer.length;i++)this.reorderBuffer[i].pts<this.reorderBuffer[e].pts&&(e=i);const t=this.reorderBuffer[e];this.presentationOrderPackets.push(t),this.reorderBuffer.splice(e,1)}}flushReorderBuffer(){this.reorderBuffer.sort((e,t)=>e.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const Ds="application/vnd.apple.mpegurl",Ns="#EXT-X-STREAM-INF:",Os="#EXT-X-I-FRAME-STREAM-INF:",Ls="#EXT-X-MEDIA:",zs="#EXTINF:",Us="#EXT-X-MAP:",qs="#EXT-X-KEY:",Ws="#EXT-X-MEDIA-SEQUENCE:",Hs="#EXT-X-BYTERANGE:",Vs="#EXT-X-PROGRAM-DATE-TIME:",js="#EXT-X-TARGETDURATION:",Ks="#EXT-X-PLAYLIST-TYPE:",Xs=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class $s{constructor(e){this._attributes={};let t="",i="",r=!1,n=!1;for(let s=0;s<e.length;s++){const a=e[s];'"'===a?n=!n:"="!==a||r||n?","!==a||n?r?i+=a:t+=a:(t&&(this._attributes[t.trim().toLowerCase()]=i),t="",i="",r=!1):r=!0}t&&(this._attributes[t.trim().toLowerCase()]=i)}get(e){var t;return null!=(t=this._attributes[e.toLowerCase()])?t:null}getAsNumber(e){const t=this.get(e);if(null===t)return null;const i=Number(t);return Number.isFinite(i)?i:null}merge(e){Object.assign(this._attributes,e._attributes)}}class Gs{constructor(e,t,i){this.nextInputCacheAge=0,this.inputCache=[],this.trackBackingsPromise=null,this.firstSegment=null,this.firstSegmentFirstTimestamps=new WeakMap,this.firstTimestampCache=new WeakMap,this.input=e,this.path=t,this.trackDeclarations=i}getDurationFromMetadata(e){return Y(this,null,function*(){const t=yield this.getSegmentAt(1/0,{skipLiveWait:e.skipLiveWait});return t?t.timestamp+t.duration:null})}getUnixTimeForTimestamp(e){return Y(this,null,function*(){let t=yield this.getSegmentAt(e,{});if(null!=t||(t=yield this.getFirstSegment({})),!t||null===t.unixEpochTimestamp)return null;const i=e-t.timestamp;return t.unixEpochTimestamp+i})}getTrackBackings(){return Y(this,null,function*(){var e;return null!=(e=this.trackBackingsPromise)?e:this.trackBackingsPromise=(()=>Y(this,null,function*(){const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=gt(e,e=>"video"===e.getType())+1;e.push(new Ys(this,t,i))}else if("audio"===t.type){const i=gt(e,e=>"audio"===e.getType())+1;e.push(new Js(this,t,i))}}else{if(this.firstSegment=yield this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=yield t.getTracks();for(const r of i)if("video"===r.type){const t=gt(e,e=>"video"===e.getType())+1;e.push(new Ys(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=gt(e,e=>"audio"===e.getType())+1;e.push(new Js(this,{id:e.length+1,type:"audio"},t))}}return e}))()})}getFirstTimestampForInput(e){return Y(this,null,function*(){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=yield e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i})}getMediaOffset(e,t){return Y(this,null,function*(){var i;const r=null!=(i=e.firstSegment)?i:e;let n;if(this.firstSegmentFirstTimestamps.has(r))n=this.firstSegmentFirstTimestamps.get(r);else{const e=this.getInputForSegment(r);n=yield this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(r,n)}if(r===e)return r.timestamp-n;const s=yield this.getFirstTimestampForInput(t),a=e.timestamp-r.timestamp,o=s-n-a;return Math.abs(o)<=Math.min(.25,a)?r.timestamp-n:e.timestamp-s})}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class Qs{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>Y(this,null,function*(){var e,t;if(null!=(e=this.segmentedInput).firstSegment||(e.firstSegment=yield this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let i=this.segmentedInput.firstSegment,r=null;for(;i;){const e=this.segmentedInput.getInputForSegment(i);if(r=null!=(t=(yield e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number))?t:null,r)break;i=yield this.segmentedInput.getNextSegment(i,{})}if(!r)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=r,this.firstSegment=i}))()}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}getHasOnlyKeyPackets(){return this.delegate(()=>{var e,t,i;return null!=(i=null==(t=(e=this.firstInputTrack._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:null})}getPairingMask(){return BigInt("1")}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}isRelativeToUnixEpoch(){return Y(this,null,function*(){return yield this.hydrate(),oe(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp})}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}createAdjustedPacket(e,t,i){return Y(this,null,function*(){oe(e.sequenceNumber>=0),oe(this.segmentedInput.firstSegment);const r=yield this.segmentedInput.getMediaOffset(t,i.input),n=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:je(e.timestamp+r,yield i.getTimeResolution()),sequenceNumber:Math.floor(1e8*n)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s})}getFirstPacket(e){return Y(this,null,function*(){var t;yield this.hydrate(),oe(this.firstInputTrack),oe(this.firstSegment);let i=this.firstInputTrack,r=this.firstSegment;for(;;){if(i){const t=yield i._backing.getFirstPacket(e);if(t)return this.createAdjustedPacket(t,r,i)}if(r=yield this.segmentedInput.getNextSegment(r,{skipLiveWait:e.skipLiveWait}),!r)break;const n=this.segmentedInput.getInputForSegment(r);i=null!=(t=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number))?t:null}return null})}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}_getNextInternal(e,t,i){return Y(this,null,function*(){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const n=i?yield r.track._backing.getNextKeyPacket(r.sourcePacket,t):yield r.track._backing.getNextPacket(r.sourcePacket,t);if(n)return this.createAdjustedPacket(n,r.segment,r.track);let s=r.segment;for(;;){const e=yield this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),n=(yield i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!n){s=e;continue}const a=yield n._backing.getFirstPacket(t);return a?this.createAdjustedPacket(a,e,n):null}})}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}_getPacketInternal(e,t,i){return Y(this,null,function*(){let r=yield this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(yield this.hydrate();r;){const n=this.segmentedInput.getInputForSegment(r),s=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const a=yield this.segmentedInput.getMediaOffset(r,n),o=e-a,l=i?yield s._backing.getKeyPacket(o,t):yield s._backing.getPacket(o,t);if(l)return this.createAdjustedPacket(l,r,s);r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null})}}class Ys extends Qs{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}getColorSpace(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())})}canBeTransparent(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())})}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}class Js extends Qs{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}ft();const Zs=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class ea extends vt{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}getSizeOrNull(){return Y(this,null,function*(){var e;if(this._disposed)throw new gl;return null!=(e=this._sizePromise)?e:this._sizePromise=(()=>Y(this,null,function*(){let e=this._getFileSize();return void 0!==e||(yield this._read(0,1,0,Zs),e=this._getFileSize(),oe(void 0!==e)),e}))()})}getSize(){return Y(this,null,function*(){if(this._disposed)throw new gl;const e=yield this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e})}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new ga(this,e,t)}_dispatchRead(e,t){var i;null==(i=this.onread)||i.call(this,e,t),this._emit("read",{start:e,end:t})}ref(){return new ta(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class ta{constructor(e){var t;if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),null==(t=e._refFinalizationRegistry)||t.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){var e;if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const t=this.source;oe(t._refCount>0),t._decrementRefCount(),null==(e=t._refFinalizationRegistry)||e.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class ia extends ea{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof ea||e instanceof ta))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof ea?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return ct(t)?t.then(i):i(t)}}const ra=(e,t)=>e.path===t.path;class na extends ia{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof ea?e.ref():e;return this._root=t,this._rootRequest=null,t};ct(e)?this._rootRequest=e.then(t):(t(e),oe(this._root))}if(this._rootRequest)return this._rootRequest.then(n=>n.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const sa="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class aa extends ea{constructor(e,t={}){var i;if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!mt(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new pa({maxCacheSize:null!=(i=t.maxCacheSize)?i:8*q(2,20),maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),null==sa||sa.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:ma.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}_runWorker(e){return Y(this,null,function*(){oe(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!it()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),null==sa||sa.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos<e.targetPos&&!e.aborted;)if(t){const{done:i,value:r}=yield t.read();if(i)throw this._orchestrator.onWorkerFinished(e),new Error("Blob reader stopped unexpectedly before all requested data was read.");if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+r.length),this._orchestrator.supplyWorkerData(e,r)}else{const t=yield this._blob.slice(e.currentPos,e.targetPos).arrayBuffer();if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+t.byteLength),this._orchestrator.supplyWorkerData(e,new Uint8Array(t))}this._orchestrator.signalWorkerStoppedRunning(e),e.aborted&&(yield null==t?void 0:t.cancel())})}_dispose(){this._orchestrator.dispose()}}const oa=.5*q(2,20),la=(e,t,i)=>{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch(r){}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return Pt._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(q(2,e-2),16)},ca=new Set;class ua extends ia{constructor(e,t={}){var i,r,n,s;if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!mt(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new ua(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=null!=(i=t.getRetryDelay)?i:la,this._requestInit=H({},t.requestInit);let a=null;if(null==(r=t.requestInit)?void 0:r.headers){const e=H({},Je(t.requestInit.headers)),i=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==i&&(a=e[i],delete e[i],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){null!=a||(a=t);const i=new Request(e);i.headers.delete("Range"),this._url=i}}if(null!==a){const e=ha(a);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new pa({maxCacheSize:null!=(n=t.maxCacheSize)?n:64*q(2,20),maxWorkerCount:null!=(s=t.parallelism)?s:2,runWorker:this._runWorker.bind(this),prefetchProfile:ma.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){var e;if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const t=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===t?null!==this._length?this._length:null:qe(t-this._offset,0,null!=(e=this._length)?e:1/0)}_read(e,t,i,r){var n;if(null!==this._length&&t>this._length)return null;const s=this._offset,a=this._sequentialBacking?this._sequentialBacking._read(s+e,s+t):this._orchestrator.read(s+e,s+t,Math.max(s+i,s),s+Math.min(r,null!=(n=this._length)?n:1/0)),o=e=>e?(e.offset-=this._offset,e):null;return ct(a)?a.then(o):o(a)}_runWorker(e){return Y(this,null,function*(){for(var t;;){const r=new AbortController,n=yield Ze(null!=(t=this._options.fetchFn)?t:fetch,this._url,Ye(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:r.signal}),this._getRetryDelay,()=>this._disposed);if(!n.ok)throw new Error(`Error fetching ${String(this._url)}: ${n.status} ${n.statusText}`);n.redirected&&(this.rootPath=n.url);e:if(null===this._orchestrator.fileSize&&(206===n.status||"basic"===n.type&&!n.headers.has("Content-Encoding"))){const t=n.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=n.headers.get("Content-Length");if(i){const t=206===n.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!n.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==n.status){if(this._sequentialBacking)return void n.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||ca.has(e.origin)||(Pt._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),ca.add(e.origin))}return void this._transitionToSequentialMode(n.body)}const s=n.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return r.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let t;try{t=yield s.read()}catch(i){if(this._disposed)throw i;const e=this._getRetryDelay(1,i,this._url);if(null!==e){Pt._error("Error while reading response stream. Attempting to resume.",i),yield Tt(1e3*e);break}throw i}if(e.aborted)continue;const{done:n,value:a}=t;if(n){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+a.length),this._orchestrator.supplyWorkerData(e,a)}}})}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const n=new ReadableStream({pull:e=>Y(this,null,function*(){for(var n;;){let a;try{a=yield t.read()}catch(s){if(this._disposed)throw s;const e=this._getRetryDelay(1,s,this._url);if(null===e)throw s;Pt._error("Error while reading response stream. Attempting to resume.",s),yield Tt(1e3*e);const a=yield Ze(null!=(n=this._options.fetchFn)?n:fetch,this._url,Ye(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!a.ok)throw new Error(`Error fetching ${String(this._url)}: ${a.status} ${a.statusText}`);if(!a.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=a.body.getReader(),r=206===a.status?0:i;continue}if(a.done)return void e.close();let o=a.value;if(r>0){const e=Math.min(r,o.length);r-=e,o=o.subarray(e)}if(0!==o.length)return i+=o.length,void e.enqueue(o)}}),cancel:()=>t.cancel()}),s=new fa(n,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const a=new Set;for(const o of this._orchestrator.workers){for(const e of o.pendingSlices)a.add(e);o.aborted=!0,o.pendingSlices.length=0}for(const o of this._orchestrator.queuedReads)for(const e of o.pendingSlices)a.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const o of a){const e=s._read(o.start,o.start+o.bytes.length);ct(e)?e.then(e=>{e?(oe(e.offset===o.start),o.resolve(e.bytes)):o.resolve(null)},e=>o.reject(e)):(oe(null===e),o.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const da=/^bytes=(\d+)-(\d*)$/,ha=e=>{const t=da.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&r<i?null:{offset:i,length:null!==r?r-i+1:null}};class fa extends ea{constructor(e,t={}){var i;if(!(e instanceof ReadableStream))throw new TypeError("stream must be a ReadableStream.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!mt(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");super(),this._reader=null,this._cache=[],this._pendingSlices=[],this._currentIndex=0,this._targetIndex=0,this._maxRequestedIndex=0,this._endIndex=null,this._pulling=!1,this._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. With ReadableStreamSource, you must access the data more sequentially or increase the size of its cache.",this._stream=e,this._maxCacheSize=null!=(i=t.maxCacheSize)?i:32*q(2,20),this._handleUnhandledError=t.handleUnhandledError}_getFileSize(){return this._endIndex}_read(e,t){if(null!==this._endIndex&&t>this._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=Re(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let n=e;const s=new Uint8Array(t-e);if(-1!==i)for(let c=i;c<this._cache.length;c++){const i=this._cache[c];if(i.start>=t)break;const r=Math.max(e,i.start);r>n&&this._throwDueToCacheMiss();const a=Math.min(t,i.end);r<a&&(s.set(i.bytes.subarray(r-i.start,a-i.start),r-e),n=a)}if(n===t)return{bytes:s,view:me(s),offset:e};this._currentIndex>n&&this._throwDueToCacheMiss();const{promise:a,resolve:o,reject:l}=Ae();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:l}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),a}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}_pull(){return Y(this,null,function*(){for(null!=this._reader||(this._reader=this._stream.getReader());this._currentIndex<this._targetIndex&&!this._disposed;){const{done:e,value:t}=yield this._reader.read();if(e){for(const e of this._pendingSlices)e.resolve(null);this._pendingSlices.length=0,this._endIndex=this._currentIndex;break}const i=this._currentIndex,r=this._currentIndex+t.byteLength;this._dispatchRead(i,r);for(let n=0;n<this._pendingSlices.length;n++){const e=this._pendingSlices[n],s=Math.max(i,e.start),a=Math.min(r,e.end);s<a&&(e.bytes.set(t.subarray(s-i,a-i),s-e.start),a===e.end&&(e.resolve({bytes:e.bytes,view:me(e.bytes),offset:e.start}),this._pendingSlices.splice(n,1),n--))}for(this._cache.push({start:i,end:r,bytes:t,view:me(t),age:0});this._cache.length>0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1})}_dispose(){var e;for(const t of this._pendingSlices)t.reject(new gl);this._pendingSlices.length=0,this._cache.length=0,null==(e=this._reader)||e.cancel()}}const ma={fileSystem:(e,t)=>{const i=q(2,16);return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=q(2,16);e=Math.max(0,Math.floor((e-r)/r)*r);for(const n of i){const i=8*q(2,20),r=Math.max((n.startPos+n.targetPos)/2,n.targetPos-i);if(dt(e,t,r,n.targetPos)){const e=n.targetPos-n.startPos,r=Math.ceil((e+1)/i)*i,s=q(2,Math.ceil(Math.log2(e+1))),a=Math.min(s,r);t=Math.max(t,n.startPos+a)}}return{start:e,end:t=Math.max(t,e+oa)}}};class pa{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){var n;oe(!this.disposed);const s=this.options.prefetchProfile(e,t,this.workers),a=Math.max(s.start,i),o=Math.min(s.end,null!=(n=this.fileSize)?n:1/0,r);oe(a<=e&&t<=o);let l=null;const c=Re(this.cache,e,e=>e.start),u=-1!==c?this.cache[c]:null;u&&u.start<=e&&t<=u.end&&(u.age=this.nextAge++,l={bytes:u.bytes,view:u.view,offset:u.start});const d=Re(this.cache,a,e=>e.start),h=l?null:new Uint8Array(t-e);let f=0,m=a;const p=[];if(-1!==d){for(let i=d;i<this.cache.length;i++){const r=this.cache[i];if(r.start>=o)break;if(r.end<=a)continue;const n=Math.max(a,r.start),s=Math.min(o,r.end);if(oe(n<=s),m<n&&p.push({start:m,end:n}),m=s,h){const i=Math.max(e,r.start),n=Math.min(t,r.end);if(i<n){const t=i-e;h.set(r.bytes.subarray(i-r.start,n-r.start),t),t===f&&(f=n-e)}}r.age=this.nextAge++}m<o&&p.push({start:m,end:o})}else p.push({start:a,end:o});if(h&&f>=h.length&&(l={bytes:h,view:me(h),offset:e}),0===p.length)return oe(l),l;const{promise:g,resolve:k,reject:y}=Ae(),b=[];for(const v of p){const i=Math.max(e,v.start),r=Math.min(t,v.end);i===v.start&&r===v.end?b.push(v):i<r&&b.push({start:i,end:r})}const T=h&&{start:e,bytes:h,holes:b,resolve:k,reject:y};e:for(const v of p){for(const i of this.workers){if(this.checkHoleAgainstWorker(i,v,T?[T]:[])){this.checkQueuedReadsAgainstWorker(i);continue e}}const e=v.end<o||null!==this.fileSize,t=this.createWorker(v.start,v.end,e);if(t)T&&(t.pendingSlices=[T]),this.runWorker(t);else{let t=Re(this.queuedReads,v.start,e=>e.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&v.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,v.end),i.strictTarget&&(i.strictTarget=e),T&&i.pendingSlices.push(T)):(t++,i={hole:{start:v.start,end:v.end},strictTarget:e,pendingSlices:T?[T]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1<this.queuedReads.length;){const e=this.queuedReads[t+1];if(e.hole.start>i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return l?g.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(oe(h),l=g.then(t=>t&&{bytes:t,view:me(t),offset:e})),l}checkHoleAgainstWorker(e,t,i){const r=q(2,17);if(dt(t.start-r,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t<i.length;t++){const r=i[t];e.pendingSlices.includes(r)||e.pendingSlices.push(r)}return e.running||this.runWorker(e),!0}return!1}checkQueuedReadsAgainstWorker(e){let t=!1;for(let i=0;i<this.queuedReads.length;i++){const r=this.queuedReads[i];if(this.checkHoleAgainstWorker(e,r.hole,r.pendingSlices))this.queuedReads.splice(i,1),i--,t=!0;else if(t)break}}createWorker(e,t,i){var r,n;if(this.workers.length>=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i<this.workers.length;i++){const r=this.workers[i];r.running||0!==r.pendingSlices.length||e&&!(r.age<e.age)||(t=i,e=r)}if(!e)return null;oe(null!==t),oe(0===e.pendingSlices.length),this.workers.splice(t,1),null==(n=(r=this.options).onIdleWorkerRemoved)||n.call(r,e)}const s={startPos:e,currentPos:e,targetPos:t,strictTarget:i,running:!1,aborted:this.disposed,pendingSlices:[],age:this.nextAge++};return this.workers.push(s),s}runWorker(e){oe(!e.running),oe(e.currentPos<e.targetPos),e.running=!0,e.age=this.nextAge++,this.options.runWorker(e).catch(t=>{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;r<this.queuedReads.length;r++){this.queuedReads[r].age<this.queuedReads[e].age&&(e=r)}const t=this.queuedReads[e],i=this.createWorker(t.hole.start,t.hole.end,t.strictTarget);if(!i)return;this.queuedReads.splice(e,1),i.pendingSlices=t.pendingSlices,this.runWorker(i)}})}supplyWorkerData(e,t){var i,r;oe(!e.aborted);const n=e.currentPos,s=n+t.length;this.insertIntoCache({start:n,end:s,bytes:t,view:me(t),age:this.nextAge++}),e.currentPos+=t.length,e.currentPos>e.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;a<e.pendingSlices.length;a++){const i=e.pendingSlices[a],r=Math.max(n,i.start),o=Math.min(s,i.start+i.bytes.length);r<o&&i.bytes.set(t.subarray(r-n,o-n),r-i.start);for(let e=0;e<i.holes.length;e++){const t=i.holes[e];n<=t.start&&s>t.start&&(t.start=s),t.end<=t.start&&(i.holes.splice(e,1),e--)}0===i.holes.length&&(i.resolve(i.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;a<this.workers.length;a++){const t=this.workers[a];e===t||t.running||dt(n,s,t.currentPos,t.targetPos)&&(this.workers.splice(a,1),null==(r=(i=this.options).onIdleWorkerRemoved)||r.call(i,t),a--)}}supplyFileSize(e){oe(null===this.fileSize),this.fileSize=e;for(const t of this.workers){t.targetPos=Math.min(t.targetPos,e),t.strictTarget=!0;for(let i=0;i<t.pendingSlices.length;i++){const r=t.pendingSlices[i];for(const n of r.holes)if(n.end>e){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t<this.queuedReads.length;t++){const i=this.queuedReads[t];if(i.hole.start>=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t<i.pendingSlices.length;t++){const r=i.pendingSlices[t];r.start>=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){var t,i;const r=this.workers.indexOf(e);oe(-1!==r),e.running=!1,this.workers.splice(r,1),null==(i=(t=this.options).onIdleWorkerRemoved)||i.call(t,e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const n of e.pendingSlices)n.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=Re(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=me(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i<this.cache.length;i++){const t=this.cache[i];if(e.end<=t.start)break;if(e.end>=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=me(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;i<this.cache.length;i++){const r=this.cache[i];r.age<t.age&&(e=i,t=r)}if(this.currentCacheSize-t.bytes.length<=this.options.maxCacheSize)break;this.cache.splice(e,1),this.currentCacheSize-=t.bytes.length}}dispose(){var e,t;for(const i of this.workers){for(const e of i.pendingSlices)e.reject(new gl);i.pendingSlices.length=0,i.aborted=!0,i.running||null==(t=(e=this.options).onIdleWorkerRemoved)||t.call(e,i)}for(const i of this.queuedReads)for(const e of i.pendingSlices)e.reject(new gl);this.workers.length=0,this.cache.length=0,this.queuedReads.length=0,this.disposed=!0}}class ga extends ea{constructor(e,t,i){if(super(),this._ref=null,e._disposed)throw new Error("Cannot create a slice of a disposed source.");this._baseSource=e,this._offset=t,this._length=null!=i?i:null}_getFileSize(){var e;const t=this._baseSource._getFileSize();return void 0===t?null!==this._length?this._length:void 0:null===t?null!==this._length?this._length:null:qe(t-this._offset,0,null!=(e=this._length)?e:1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const n=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return ct(n)?n.then(s):s(n)}_dispose(){var e;null==(e=this._ref)||e.free()}ref(){return null!=this._ref||(this._ref=this._baseSource.ref()),super.ref()}}var ka=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,n;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},ya=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const ba=/^0[xX][0-9a-fA-F]+$/,Ta=/^data:.*;base64,/i;class va extends Gs{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){var e;return null!=(e=this.currentUpdateSegmentsPromise)?e:this.currentUpdateSegmentsPromise=(()=>Y(this,null,function*(){try{const e=this.getRemainingWaitTimeMs();e>0&&(yield Tt(e)),this.lastSegmentUpdateTime=performance.now(),yield this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}}))()}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}updateSegments(){return Y(this,null,function*(){var e,t,i,r,n,s,a,o;let l=this.nextLines;if(this.nextLines=null,!l){const e={stack:[],error:void 0,hasError:!1};try{const t=ka(e,yield this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),i=new kl(t.source),r=yield i.requestEntireFile();oe(r),l=Ol(r,r.length,{ignore:Xs}),t.source instanceof ia&&(this.rootPath=t.source.rootPath)}catch(x){e.error=x,e.hasError=!0}finally{ya(e)}}const c=!1!==(null==(e=this.input._formatOptions.hls)?void 0:e.offsetTimestampsByDateTime);let u=!1,d=0,h=null,f=null,m=null,p=0,g=null,k=null,y=null,b=null,T=null,v=null,w=!1,S=null!=(t=ce(this.segments))?t:null;const P=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},I=e=>{p=e,S&&(oe(null!==S.sequenceNumber),S.sequenceNumber<e&&(d=S.timestamp+S.duration,g=S.firstSegment,k=S.initSegment,T=S.lastProgramDateTimeSeconds,h=null!==S.unixEpochTimestamp?S.unixEpochTimestamp+S.duration:null,S=null))};for(let C=0;C<l.length;C++){const e=l[C];if(u){if(!e.startsWith("#")){if(!S){if(null===f)throw new Error("Invalid M3U8 file; a segment must be preceded by an #EXTINF tag.");let t=m;if(t&&"AES-128"===t.method&&!t.iv){const e=new Uint8Array(Er),i=me(e);i.setUint32(8,Math.floor(p/q(2,32))),i.setUint32(12,p),t=V(H({},t),{iv:e})}const n={path:pt(this.rootPath,e),offset:null!=(i=null==b?void 0:b.offset)?i:0,length:null!=(r=null==b?void 0:b.length)?r:null},s={timestamp:d,unixEpochTimestamp:h,firstSegment:g,sequenceNumber:p,location:n,duration:f,encryption:t,initSegment:k,lastProgramDateTimeSeconds:T};null!=g||(g=s),d+=f,null!==h&&(h+=f),this.segments.push(s)}f=null,null===b?y=null:b=null,I(p+1)}if(e.startsWith(zs)){if(S){w=!0;continue}w||(null===T&&p>0&&null!==v&&(d=p*v),w=!0);const t=e.slice(8),i=t.indexOf(","),r=-1===i?t:t.slice(0,i),n=Number(r);if(!Number.isFinite(n)||n<0)throw new Error(`Invalid #EXTINF tag duration '${r}'.`);f=n}else if(e.startsWith(Us)){const t=new $s(e.slice(11)),i=t.get("uri");if(!i)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const r=t.get("byterange");let a=null;if(null!==r&&(a=P(r)),a&&null===a.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!S){const e={path:pt(this.rootPath,i),offset:null!=(n=null==a?void 0:a.offset)?n:0,length:null!=(s=null==a?void 0:a.length)?s:null};if("AES-128"===(null==m?void 0:m.method)&&!m.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");k={timestamp:d,unixEpochTimestamp:h,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:m,initSegment:null,lastProgramDateTimeSeconds:T}}f=null,null===b?y=null:b=null}else if(e.startsWith(qs)){const t=new $s(e.slice(11)),i=t.get("method");if("NONE"===i)m=null;else if("AES-128"===i){const e=t.get("uri");if(!e)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=t.get("iv");if(r){if(!ba.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Er);for(let t=0;t<Er;t++){const r=-32+t;i[t]=parseInt(e.slice(r,r+2),16)}}const n=null!=(a=t.get("keyformat"))?a:"identity";if("identity"!==n)throw new Error("For AES-128 encryption, only the 'identity' KEYFORMAT is currently supported. If you think other formats should be supported, please raise an issue.");m={method:"AES-128",keyUri:pt(this.rootPath,e),iv:i,keyFormat:n}}else{if("SAMPLE-AES"!==i&&"SAMPLE-AES-CTR"!==i)throw new Error(`Unsupported encryption method '${i}'. If you think this method should be supported, please raise an issue.`);{const e=t.get("uri");if(!e)throw new Error(`Invalid #EXT-X-KEY: ${i} requires a URI attribute.`);if("identity"===(null!=(o=t.get("keyformat"))?o:"identity"))throw new Error("For SAMPLE-AES and SAMPLE-AES-CTR encryption, the 'identity' KEYFORMAT is not supported. If you think this format should be supported, please raise an issue.");let r=null;if(Ta.test(e)){const t=e.indexOf(","),i=ht(e.slice(t+1));if(i.length>=8&&112===i[4]&&115===i[5]&&115===i[6]&&104===i[7]){const e=me(i).getUint32(0);r=vr(i.subarray(8,Math.min(e,i.length)))}}m={method:i,psshBox:r}}}}else if(e.startsWith(Ws)){const t=e.slice(22),i=Number(t);if(!Number.isInteger(i)||i<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${t}'.`);I(i)}else if(e.startsWith(Hs)){const t=P(e.slice(17));if(null===t.offset){if(null===y)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");t.offset=y}b=t,y=t.offset+t.length}else if(e.startsWith(Vs)){if(S)continue;const t=e.slice(25),i=Date.parse(t);if(!Number.isFinite(i))continue;const r=i/1e3;if(T===r)continue;if(null===T&&this.segments.length>0){const e=ce(this.segments),t=r-(e.timestamp+e.duration);for(const i of this.segments)i.unixEpochTimestamp=i.timestamp+t,c&&(i.timestamp=i.unixEpochTimestamp)}T=r,h=r,c&&(d=r)}else if("#EXT-X-DISCONTINUITY"===e)g=null;else if(e.startsWith(js)){const t=e.slice(22),i=Number(t);if(!Number.isFinite(i)||i<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${t}'.`);this.refreshInterval=i,v=i}else{if("#EXT-X-ENDLIST"===e){this.streamHasEnded=!0;break}if(e.startsWith(Ks)){"vod"===e.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==e)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");u=!0}}if(!u)throw new Error("Invalid M3U8 file; no #EXTM3U header.")})}getFirstSegment(){return Y(this,null,function*(){var e;return 0===this.segments.length&&(yield this.runUpdateSegments()),null!=(e=this.segments[0])?e:null})}getSegmentAt(e,t){return Y(this,null,function*(){0===this.segments.length&&(yield this.runUpdateSegments());let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=Re(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r<this.segments.length-1||this.streamHasEnded||i)return this.segments[r];const n=this.segments[r];if(e<n.timestamp+n.duration)return n;yield this.runUpdateSegments(),t.skipLiveWait&&(i=!0)}})}getNextSegment(e,t){return Y(this,null,function*(){const i=this.segments.indexOf(e);oe(-1!==i);const r=i+1;let n=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){if(r<this.segments.length)return this.segments[r];if(this.streamHasEnded||n)return null;yield this.runUpdateSegments(),t.skipLiveWait&&(n=!0)}})}getPreviousSegment(e){return Y(this,null,function*(){var t;const i=this.segments.indexOf(e);return oe(-1!==i),null!=(t=this.segments[i-1])?t:null})}getInputForSegment(e){var t,i;const r=e,n=this.inputCache.find(e=>e.segment===r);if(n)return n.age=this.nextInputCacheAge++,n.input;let s=null;(r.initSegment||r.firstSegment)&&(s=this.getInputForSegment(null!=(t=r.initSegment)?t:r.firstSegment));const a=V(H({},this.input._formatOptions),{isobmff:V(H({},this.input._formatOptions.isobmff),{resolveKeyId:(null==(i=this.input._formatOptions.isobmff)?void 0:i.resolveKeyId)&&(e=>{if(!r.encryption||"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method||!r.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let t=e.psshBoxes;const{psshBox:i}=r.encryption;return null!==i.keyIds&&!i.keyIds.includes(e.keyId)||t.some(e=>wr(e,i))||(t=[...t,i]),this.input._formatOptions.isobmff.resolveKeyId(V(H({},e),{psshBoxes:t}))})})}),o=new ml({source:new na(r.location.path,e=>Y(this,null,function*(){var t,i;oe(e.isRoot);const n=V(H({},e),{isRoot:!1});let s;const a=r.location.offset>0||null!==r.location.length;if(r.encryption&&"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method)if("AES-128"===r.encryption.method){const e=r.encryption;oe(e.iv);let t=yield this.input._getSourceCached(n);if(a){const e=t.source.slice(r.location.offset,null!=(i=r.location.length)?i:void 0).ref();t.free(),t=e}const o=((e,t,i)=>{let r=!1,n=0;const s=q(2,16),a=new Lr;return new ReadableStream({pull:o=>Y(null,null,function*(){r||(a.init(yield t()),r=!0);const l=s+16;let c=e.requestSliceRange(n,0,l);if(ct(c)&&(c=yield c),!c||0===c.length)throw new Error("Invalid ciphertext.");const u=c.length;if(u%16!==0)throw new Error("Invalid ciphertext.");const d=u===l?u-16:u,h=Tl(c,d),f=new Uint8Array(d);for(let e=0;e<d;e+=16)a.in.set(h.subarray(e,e+16)),a.decrypt(),f.set(a.out,e);if(d<u)o.enqueue(f),n+=d;else{const e=f[d-1];if(0===e||e>16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=f.subarray(0,d-e);o.enqueue(t),o.close(),i()}}),cancel:()=>{i()}})})(new kl(t.source),()=>Y(this,null,function*(){const t={stack:[],error:void 0,hasError:!1};try{const i=ka(t,yield this.input._getSourceCached({path:e.keyUri,isRoot:!1},fl),!1),r=new kl(i.source),n=yield r.requestSlice(0,Er);if(!n)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:Tl(n,Er),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{ya(t)}}),()=>{t.free()});s=new fa(o).ref()}else oe(!1);else if(s=yield this.input._getSourceCached(n),a){const e=s.source.slice(r.location.offset,null!=(t=r.location.length)?t:void 0).ref();s.free(),s=e}return s})),formats:this.input._formats.filter(e=>!(e instanceof qa)),initInput:null!=s?s:void 0,formatOptions:a});o._onFormatDetermined=e=>{var t,i;if(("SAMPLE-AES"===(null==(t=r.encryption)?void 0:t.method)||"SAMPLE-AES-CTR"===(null==(i=r.encryption)?void 0:i.method))&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:r,input:o,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=kt(this.inputCache,e=>e.age);oe(-1!==e),this.inputCache.splice(e,1)}return o}getLiveRefreshInterval(){return Y(this,null,function*(){return 0===this.getRemainingWaitTimeMs()&&(yield this.runUpdateSegments()),this.streamHasEnded?null:this.refreshInterval})}}class wa extends yr{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){oe(this.input._rootSource instanceof ia);const e=yield this.input._reader.requestEntireFile();oe(e);const t=Ol(e,e.length,{ignore:Xs}),{rootPath:i}=this.input._rootSource,r=[],n=[];for(let u=1;u<t.length;u++){const e=t[u];if(e.startsWith(Ns)){const n=u,s=t[++u];if(void 0===s)throw new Error("Incorrect M3U8 file; a line must follow the #EXT-X-STREAM-INF tag.");const a=pt(i,s),o=new $s(e.slice(18));if(null===o.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");r.push({fullPath:a,attributes:o,lineNumber:n,hasOnlyKeyPackets:!1})}else if(e.startsWith(Os)){const t=new $s(e.slice(26)),n=t.get("uri");if(null===n)throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a URI attribute.");if(null===t.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");const s=pt(i,n);r.push({fullPath:s,attributes:t,lineNumber:u,hasOnlyKeyPackets:!0})}else if(e.startsWith(Ls)){const t=new $s(e.slice(13));if(null===t.get("type"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a TYPE attribute.");if(null===t.get("group-id"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a GROUP-ID attribute.");let r=null;const s=t.get("uri");null!==s&&(r=pt(i,s)),n.push({fullPath:r,attributes:t,lineNumber:u})}else if("#EXT-X-I-FRAMES-ONLY"===e);else if(e.startsWith(zs)){const e=new va(this,i,null,t);return this.segmentedInputs=[e],this.hasMasterPlaylist=!1,void(this.trackBackings=yield e.getTrackBackings())}}const s=[...new Set(n.filter(e=>"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],a=[...new Set(n.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=yield Promise.all(r.map((e,t)=>Y(this,null,function*(){var r,o,l,c;const u=[],d=e.attributes.get("codecs");let h;if(d)h=d.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=yield t.getTrackBackings(),r=yield Promise.all(i.map(e=>Y(this,null,function*(){return{track:e,codec:yield e.getCodec()}})));h=yield Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const f=e.attributes.get("video"),m=e.attributes.get("audio"),p=h.some(e=>Ki.includes(or(e))),g=h.some(e=>$i.includes(or(e)));if(null!==f&&!p){if(!s.includes(f))throw new Error(`Invalid M3U8 file; variant stream references video group "${f}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===f&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=pt(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});oe(null!==a),h.push(a)}}if(null!==m&&!g){if(!a.includes(m))throw new Error(`Invalid M3U8 file; variant stream references audio group "${m}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===m&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=pt(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});oe(null!==a),h.push(a)}}h=[...new Set(h)];let k=null,y=null;const b=e.attributes.getAsNumber("bandwidth");oe(null!==b);const T=e.attributes.getAsNumber("average-bandwidth"),v=e.attributes.get("name");for(const i of h){const d=or(i);if(null!==d)if(Ki.includes(d)){if(null!==k)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");k=i;const a=e.attributes.get("video");if(null===a){const i=e.attributes.get("resolution");let r=null,n=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(r=Number(e[1]),n=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:We,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:k,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:b,averageBitrate:T,name:v,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:r,height:n}})}else{if(!s.includes(a))throw new Error(`Invalid M3U8 file; variant stream references video group "${a}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==a||"video"!==s.toLowerCase())continue;const l=null!=(r=i.attributes.get("resolution"))?r:e.attributes.get("resolution");let c=null,d=null;if(l){const e=l.match(/^(\d+)x(\d+)$/);e&&(c=Number(e[1]),d=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:xa(i.attributes),autoselect:xa(i.attributes)||Ca(i.attributes),languageCode:Ba(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(o=i.fullPath)?o:e.fullPath,fullCodecString:k,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:c,height:d}})}}}else if($i.includes(d)){if(null!==y)throw new Error("Unsupported M3U8 file; multiple audio codecs found in the CODECS attribute of a variant stream.");y=i;const r=e.attributes.get("audio");if(null===r){const i=e.attributes.get("channels"),r=null!==i?Number(i.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:We,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:y,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:b,averageBitrate:T,name:v,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==r&&Number.isInteger(r)&&r>0?r:null}})}else{if(!a.includes(r))throw new Error(`Invalid M3U8 file; variant stream references audio group "${r}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==r||"audio"!==s.toLowerCase())continue;const a=null!=(l=i.attributes.get("channels"))?l:e.attributes.get("channels"),o=null!==a?Number(a.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:xa(i.attributes),autoselect:xa(i.attributes)||Ca(i.attributes),languageCode:Ba(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(c=i.fullPath)?c:e.fullPath,fullCodecString:y,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==o&&Number.isInteger(o)&&o>0?o:null}})}}}}return u}))),l=[],c=e=>{var t,i;const r=l.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);r?(r.pairingMask|=e.pairingMask,r.default||(r.default=e.default),r.autoselect||(r.autoselect=e.autoselect),r.lineNumber=Math.min(r.lineNumber,e.lineNumber),null!==e.peakBitrate&&(r.peakBitrate=Math.max(null!=(t=r.peakBitrate)?t:-1/0,e.peakBitrate)),null!==e.averageBitrate&&(r.averageBitrate=Math.max(null!=(i=r.averageBitrate)?i:-1/0,e.averageBitrate)),r.languageCode===We&&(r.languageCode=e.languageCode)):(e.id=l.length+1,l.push(e))};for(const u of o)for(const e of u)c(e);l.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const u of l)"video"===u.info.type?this.trackBackings.push(new Pa(u)):this.trackBackings.push(new Ia(u));this.internalTracks=l}))()}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),oe(this.trackBackings),this.trackBackings})}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new va(this,e,i,null),this.segmentedInputs.push(t),t}getMetadataTags(){return Y(this,null,function*(){return{}})}getMimeType(){return Y(this,null,function*(){return Ds})}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class Sa{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>Y(this,null,function*(){const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(yield e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof Pa){for(const r of i)if((yield r.getCodec())===this.getCodec()){t=r;break}}else{oe(this instanceof Ia);for(const e of i)if((yield e.getCodec())===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t}))()}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return V(H({},Ct),{default:this.internalTrack.autoselect,primary:this.internalTrack.default})}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){oe(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}getDurationFromMetadata(e){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)})}getLiveRefreshInterval(){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()})}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}getFirstPacket(e){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)})}getPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)})}getKeyPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)})}getNextPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)})}getNextKeyPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)})}}class Pa extends Sa{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return or(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}getColorSpace(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getColorSpace()})}canBeTransparent(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.canBeTransparent()})}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getDecoderConfig()})}}class Ia extends Sa{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return or(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return Y(this,null,function*(){return yield this.hydrate(),this.backingAudioTrack.getDecoderConfig()})}}const xa=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},Ca=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},Ba=e=>{if(null===e)return We;const t=e.split("-")[0];return t||We};class Ea{constructor(){this._isIsobmff=!1}}class _a extends Ea{constructor(){super(...arguments),this._isIsobmff=!0}_getMajorBrand(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,12);if(ct(t)&&(t=yield t),!t)return null;t.skip(4);const i=Nl(t,4);return"ftyp"!==i&&"styp"!==i?null:Nl(t,4)})}_createDemuxer(e){return new zr(e)}}class Ra extends _a{_canReadInput(e){return Y(this,null,function*(){const t=yield this._getMajorBrand(e);if(null!==t)return"qt  "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(ct(t)&&(t=yield t),!t)return!1;let r=Cl(t),n=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(ct(t)&&(t=yield t),!t)return!1;r=Rl(t),n=16}if(r<n)return!1;const s=Nl(t,4);if("moof"===s||"sidx"===s)return!0;if("emsg"!==s&&"prft"!==s&&"free"!==s)return!1;i+=r}return!1})}get name(){return"MP4"}get mimeType(){return"video/mp4"}}class Fa extends _a{_canReadInput(e){return Y(this,null,function*(){return"qt  "===(yield this._getMajorBrand(e))})}get name(){return"QuickTime File Format"}get mimeType(){return"video/quicktime"}}class Aa extends Ea{isSupportedEBMLOfDocType(e,t){return Y(this,null,function*(){let i=e._reader.requestSlice(0,cn);if(ct(i)&&(i=yield i),!i)return!1;const r=un(i);if(null===r)return!1;if(r<1||r>8)return!1;if(hn(i,r)!==nn.EBML)return!1;const n=mn(i);if("number"!==typeof n)return!1;let s=e._reader.requestSlice(i.filePos,n);if(ct(s)&&(s=yield s),!s)return!1;const a=i.filePos;for(;s.filePos<=a+n-2;){const e=pn(s);if(!e)break;const{id:i,size:r}=e,n=s.filePos;if(void 0===r)return!1;switch(i){case nn.EBMLVersion:if(1!==hn(s,r))return!1;break;case nn.EBMLReadVersion:if(1!==hn(s,r))return!1;break;case nn.DocType:if(gn(s,r)!==t)return!1;break;case nn.DocTypeVersion:if(hn(s,r)>4)return!1}s.filePos=n+r}return!0})}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new Vn(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class Ma extends Aa{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Da extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}const i=yield $n(e._reader,t,t+4096);if(!i)return!1;const r=i.header,n=hr(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+n,4);if(ct(s)&&(s=yield s),!s)return!1;const a=Cl(s);if(a===ur||a===dr)return!0;t=i.startPos+i.header.totalSize;const o=yield $n(e._reader,t,t+4);if(!o)return!1;const l=o.header;return r.channel===l.channel&&r.sampleRate===l.sampleRate})}_createDemuxer(e){return new Gn(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class Na extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,12);if(ct(t)&&(t=yield t),!t)return!1;const i=Nl(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===Nl(t,4)})}_createDemuxer(e){return new ds(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class Oa extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,4);return ct(t)&&(t=yield t),!!t&&"OggS"===Nl(t,4)})}_createDemuxer(e){return new ss(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class La extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return ct(i)&&(i=yield i),!!i&&"fLaC"===Nl(i,4)})}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new ys(e)}}class za extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(ct(i)&&(i=yield i),!i)return!1;const r=ms(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),ct(i)&&(i=yield i),!i)return!1;const n=ms(i);return!!n&&(r.objectType===n.objectType&&r.samplingFrequencyIndex===n.samplingFrequencyIndex&&r.channelConfiguration===n.channelConfiguration)})}_createDemuxer(e){return new gs(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class Ua extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,205);if(ct(t)&&(t=yield t),!t)return!1;const i=Tl(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])})}_createDemuxer(e){return new xs(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class qa extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,7);if(ct(t)&&(t=yield t),!t)return!1;if(!("#EXTM3U"===Nl(t,7)))return!1;if(!(e._rootSource instanceof ia))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0})}_createDemuxer(e){return new wa(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Ds}}const Wa=new Ra,Ha=new Fa,Va=new Aa,ja=new Ma,Ka=new Da,Xa=new Na,$a=new Oa,Ga=new za,Qa=new La,Ya=new Ua,Ja=new qa,Za=[Ja,Wa,Ha,Va,ja,Xa,$a,Qa,Ka,Ga,Ya],eo=[Ja,Wa,Ha,Ka,Ga,Ya];var to=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});ft();let io=-1/0,ro=-1/0,no=null;"undefined"!==typeof FinalizationRegistry&&(no=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-io>=1e3&&(Pt._error("A VideoSample was garbage collected without first being closed. 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this.format&&this.format.includes("A")}constructor(e,t){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F;if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!oo.has(t.format))throw new TypeError("init.format must be one of: "+ao.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&bt(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=null!=(i=t.rotation)?i:0,this.timestamp=t.timestamp,this.duration=null!=(r=t.duration)?r:0;const m=null!=(n=t.layout)?n:bo(t.format,t.codedWidth,t.codedHeight);let p=null!=(s=t.colorSpace)?s:null;null===p&&(p="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:null!=(o=null==(a=t.visibleRect)?void 0:a.left)?o:0,top:null!=(c=null==(l=t.visibleRect)?void 0:l.top)?c:0,width:null!=(d=null==(u=t.visibleRect)?void 0:u.width)?d:t.codedWidth,height:null!=(f=null==(h=t.visibleRect)?void 0:h.height)?f:t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?fe(e):fe(e).slice(),this._layout=m,this.colorSpace=new mo(p)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==(null==t?void 0:t.rotation)&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==(null==t?void 0:t.timestamp)&&!Number.isFinite(null==t?void 0:t.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==(null==t?void 0:t.duration)&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==(null==t?void 0:t.visibleRect)&&bt(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:null!=(p=null==(m=e.visibleRect)?void 0:m.x)?p:0,top:null!=(k=null==(g=e.visibleRect)?void 0:g.y)?k:0,width:null!=(b=null==(y=e.visibleRect)?void 0:y.width)?b:e.codedWidth,height:null!=(v=null==(T=e.visibleRect)?void 0:T.height)?v:e.codedHeight},this.rotation=null!=(w=null==t?void 0:t.rotation)?w:0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=null!=(S=null==t?void 0:t.timestamp)?S:e.timestamp/1e6,this.duration=null!=(I=null==t?void 0:t.duration)?I:(null!=(P=e.duration)?P:0)/1e6,this.colorSpace=new mo(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&bt(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new lo(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*Qe),duration:Math.trunc((null!=(x=t.duration)?x:0)*Qe)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const n=null!=(C=t.visibleRect)?C:{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(n.width,n.height),a=s.getContext("2d",{alpha:nt(),willReadFrequently:!0});if(!a)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");a.drawImage(e,-n.left,-n.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:n.width,height:n.height},this.squarePixelWidth=n.width,this.squarePixelHeight=n.height,this.rotation=null!=(B=t.rotation)?B:0,this.timestamp=t.timestamp,this.duration=null!=(E=t.duration)?E:0,this.colorSpace=new mo({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof so))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!ao.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=null!=(_=t.rotation)?_:0,this.timestamp=t.timestamp,this.duration=null!=(R=t.duration)?R:0,this.colorSpace=e.getColorSpace()}this.encodeOptions=null!=(F=null==t?void 0:t.encodeOptions)?F:{},this.pixelAspectRatio=yt({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),null==no||no.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return oe(null!==this._data),this._data instanceof so?new lo(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):po(this._data)?new lo(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(oe(this._layout),new lo(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new lo(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(null==no||no.unregister(this),this._data instanceof so?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):po(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){var t;if(yo(e),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(t=e.format)?t:this.format))throw new Error("Cannot get allocation size when format is null.");if(po(this._data))return this._data.allocationSize(e);return vo(this,e).allocationSize}copyTo(e){return Y(this,arguments,function*(e,t={}){var i,r;if(!Ie(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer 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is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,yield this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},null!=(r=t.colorSpace)?r:"srgb"),!1);if(!(n instanceof lo))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(n.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${n.format}' instead.`);return yield n.copyTo(e,t)}catch(u){i.error=u,i.hasError=!0}finally{to(i)}}}const n=vo(this,t);oe(this.format);const s=fe(e);if(s.byteLength<n.allocationSize)throw new TypeError(`Destination buffer too small. Required: ${n.allocationSize}, Available: ${s.byteLength}`);const a=To(this.format);let o;if(this._data instanceof so){let e=this._data.getDataPlanes();if(ct(e)&&(e=yield e),!Array.isArray(e)||e.some(e=>!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');o=e}else if(this._data instanceof Uint8Array)oe(this._layout),oe(this._layout.length===a.length),o=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");oe(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);o=[{data:fe(t.data),stride:4*this.codedWidth}]}const l=[],c=a.length;for(let d=0;d<c;d++){const e=n.computedLayouts[d],t=o[d].stride,i=o[d].data;let r=e.sourceTop*t;r+=e.sourceLeftBytes;let a=e.destinationOffset;const c=e.sourceWidthBytes,u={offset:a,stride:e.destinationStride};for(let n=0;n<e.sourceHeight;n++){if(r+c>i.byteLength)throw new Error("Source buffer OOB read.");if(a+c>s.byteLength)throw new Error("Destination buffer OOB write.");const n=i.subarray(r,r+c);s.set(n,a),r+=t,a+=e.destinationStride}l.push(u)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),i=this.format.includes("X")&&t.format.includes("A");if(e||i)for(let t=0;t<n.allocationSize;t+=4){if(e){const e=s[t],i=s[t+2];s[t]=i,s[t+2]=e}i&&(s[t+3]=255)}}return l})}toVideoFrame(){if(this._closed)throw new Error("VideoSample is closed.");if(oe(null!==this._data),this._data instanceof so){if(null===this.format)throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if format is null.");const e=this._data.getDataPlanes();if(ct(e))throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if getDataPlanes() returns a promise.");const t=e.reduce((e,t)=>e+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const n=[];for(const s of e)i.set(s.data,r),n.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:n[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return po(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(oe(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,n,s,a,o,l){let c=0,u=0,d=this.displayWidth,h=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(c=t,u=i,d=r,h=n,f=s,m=a,void 0!==o?(p=o,g=l):(p=d,g=h)):(f=t,m=i,void 0!==r&&(p=r,g=n)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(c))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:c,sy:u,sWidth:d,sHeight:h}=this._rotateSourceRegion(c,u,d,h,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const T=this.rotation%180===0?1:p/g;e.scale(1/T,T),e.drawImage(k,c,u,d,h,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){var i,r,n,s,a,o,l,c,u;if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&ko(t.crop,"options.");const d=e.canvas.width,h=e.canvas.height,f=null!=(i=t.rotation)?i:this.rotation,[m,p]=f%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let g,k,y,b,T=t.crop;T&&(T=go(T,m,p));const{sx:v,sy:w,sWidth:S,sHeight:P}=this._rotateSourceRegion(null!=(n=null==(r=t.crop)?void 0:r.left)?n:0,null!=(a=null==(s=t.crop)?void 0:s.top)?a:0,null!=(l=null==(o=t.crop)?void 0:o.width)?l:m,null!=(u=null==(c=t.crop)?void 0:c.height)?u:p,f);if("fill"===t.fit)g=0,k=0,y=d,b=h;else{const[e,i]=t.crop?[t.crop.width,t.crop.height]:[m,p],r="contain"===t.fit?Math.min(d/e,h/i):Math.max(d/e,h/i);y=e*r,b=i*r,g=(d-y)/2,k=(h-b)/2}e.save();const I=f%180===0?1:y/b;e.translate(d/2,h/2),e.rotate(f*Math.PI/180),e.scale(1/I,I),e.translate(-d/2,-h/2),e.drawImage(this.toCanvasImageSource(),v,w,S,P,g,k,y,b),e.restore()}_rotateSourceRegion(e,t,i,r,n){return 90===n?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===n?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===n&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,n=e.height,[s,a]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,l=i.crop?i.crop.height:a;let c=0;2*r<o&&2*n<l&&(c=Math.floor(Math.log2(Math.min(o/r,l/n))));const u=r*q(2,c),d=n*q(2,c),{canvas:h,context:f,isNew:m}=c>0?fo(u,d):{canvas:e,context:t,isNew:i.targetIsFresh};f.imageSmoothingQuality="high",i.fillBlack?(f.fillStyle="black",f.fillRect(0,0,u,d)):m||f.clearRect(0,0,u,d),this.drawWithFit(f,{fit:i.fit,rotation:i.rotation,crop:i.crop}),f.globalCompositeOperation="copy";for(let p=c;p>1;p--){const e=r*q(2,p),t=n*q(2,p);f.drawImage(h,0,0,e,t,0,0,e/2,t/2)}f.globalCompositeOperation="source-over",c>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(h,0,0,2*r,2*n,0,0,r,n),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(oe(null!==this._data),this._data instanceof so||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}transform(e){return Y(this,null,function*(){var t,i,r,n,s;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&ko(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const a=le(this.rotation+(null!=(t=e.rotate)?t:0)),[o,l]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let c=e.crop;c&&(c=go(c,o,l));const u=c?c.width:o,d=c?c.height:l,h=u/d;let f,m;void 0!==e.width&&void 0===e.height?(f=e.width,m=f/h):void 0===e.width&&void 0!==e.height?(m=e.height,f=m*h):void 0!==e.width&&void 0!==e.height?(f=e.width,m=e.height):(f=u,m=d),f=Ve(f,null!=(i=e.roundDimensionsTo)?i:1),m=Ve(m,null!=(r=e.roundDimensionsTo)?r:1);const p={width:f,height:m,fit:null!=(n=e.fit)?n:"fill",rotation:a,crop:null!=c?c:{left:0,top:0,width:o,height:l},alpha:null!=(s=e.alpha)?s:"keep"};for(const e of co){let t=e(this,p);if(ct(t)&&(t=yield t),null!==t)return t}const{canvas:g,context:k,isNew:y}=fo(p.width,p.height);return this._drawWithFitAndMipmapping(g,k,{fit:p.fit,rotation:p.rotation,crop:p.crop,targetIsFresh:y,fillBlack:"discard"===p.alpha}),new lo(g,{timestamp:this.timestamp,duration:this.duration,rotation:0})})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const co=[],uo=[];let ho=0;const fo=(e,t)=>{for(const n of uo)if(n.canvas.width===e&&n.canvas.height===t)return n.age=ho++,{canvas:n.canvas,context:n.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return uo.length>=3&&uo.splice(kt(uo,e=>e.age),1),uo.push({canvas:i,context:r,age:ho++}),{canvas:i,context:r,isNew:!0}};class mo{constructor(e){var t,i,r,n;if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(ke);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(be);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(ve);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=null!=(t=null==e?void 0:e.primaries)?t:null,this.transfer=null!=(i=null==e?void 0:e.transfer)?i:null,this.matrix=null!=(r=null==e?void 0:e.matrix)?r:null,this.fullRange=null!=(n=null==e?void 0:e.fullRange)?n:null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const po=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,go=(e,t,i)=>{const r=Math.min(e.left,t),n=Math.min(e.top,i),s=Math.min(e.width,t-r),a=Math.min(e.height,i-n);return oe(s>=0),oe(a>=0),{left:r,top:n,width:s,height:a}},ko=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},yo=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},bo=(e,t,i)=>{const r=To(e),n=[];let s=0;for(const a of r){const e=Math.ceil(t/a.widthDivisor),r=Math.ceil(i/a.heightDivisor),o=e*a.sampleBytes,l=o*r;n.push({offset:s,stride:o}),s+=l}return n},To=e=>{const t=(e,t,i,r,n)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return n&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:Oe(e),oe(!1)}},vo=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,n=wo(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let a;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");a=t.format}else a=e.format;return Po(n,a,s)},wo=(e,t,i,r,n)=>{const s=H({},e);if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!So(n,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},So=(e,t)=>{if(null===e)return!0;const i=To(e);for(let r=0;r<i.length;r++){const e=i[r],n=e.widthDivisor,s=e.heightDivisor;if((t.x||0)%n!==0)return!1;if((t.y||0)%s!==0)return!1}return!0},Po=(e,t,i)=>{const r=To(t),n=r.length;if(void 0!==i&&i.length!==n)throw new TypeError(`Layout must have ${n} planes.`);let s=0;const a=[],o=[];for(let l=0;l<n;l++){const t=r[l],n=t.sampleBytes,c=t.widthDivisor,u=t.heightDivisor,d={destinationOffset:0,destinationStride:0,sourceTop:0,sourceHeight:0,sourceLeftBytes:0,sourceWidthBytes:0};if(d.sourceTop=Math.ceil(Math.trunc(e.y||0)/u),d.sourceHeight=Math.ceil(Math.trunc(e.height||0)/u),d.sourceLeftBytes=Math.floor(Math.trunc(e.x||0)/c)*n,d.sourceWidthBytes=Math.floor(Math.trunc(e.width||0)/c)*n,void 0!==i){const e=i[l];if(e.stride<d.sourceWidthBytes)throw new TypeError(`Stride for plane ${l} is too small.`);d.destinationOffset=e.offset,d.destinationStride=e.stride}else d.destinationOffset=s,d.destinationStride=d.sourceWidthBytes;const h=d.destinationStride*d.sourceHeight+d.destinationOffset;if(h>4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(h),s=Math.max(s,h);for(let e=0;e<l;e++){const t=a[e];if(!(o[l]<=t.destinationOffset||o[e]<=d.destinationOffset))throw new TypeError("Planes overlap.")}a.push(d)}return{allocationSize:s,computedLayouts:a}},Io=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]);class xo{constructor(){this._referenceCount=0}}class Co{get microsecondTimestamp(){return Math.trunc(Qe*this.timestamp)}get microsecondDuration(){return Math.trunc(Qe*this.duration)}constructor(e){if(this._closed=!1,Fo(e)){if(null===e.format)throw new TypeError("AudioData with null format is not supported.");this._data=e,this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=e.numberOfFrames,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp/1e6,this.duration=e.numberOfFrames/e.sampleRate}else if(e instanceof xo){if(this._data=e,e._referenceCount++,this.format=e.getFormat(),!Io.has(this.format))throw new TypeError("getFormat() must return an AudioSampleFormat.");if(this.sampleRate=e.getSampleRate(),!Number.isInteger(this.sampleRate)||this.sampleRate<=0)throw new TypeError("getSampleRate() must return a positive integer.");if(this.numberOfFrames=e.getNumberOfFrames(),!Number.isInteger(this.numberOfFrames)||this.numberOfFrames<0)throw new TypeError("getNumberOfFrames() must return a non-negative integer.");if(this.numberOfChannels=e.getNumberOfChannels(),!Number.isInteger(this.numberOfChannels)||this.numberOfChannels<=0)throw new TypeError("getNumberOfChannels() must return a positive integer.");if(this.timestamp=e.getTimestamp(),!Number.isFinite(this.timestamp))throw new TypeError("getTimestamp() must return a finite number.");this.duration=this.numberOfFrames/this.sampleRate}else{if(!e||"object"!==typeof e)throw new TypeError("Invalid AudioDataInit: must be an object.");if(!Io.has(e.format))throw new TypeError("Invalid AudioDataInit: invalid format.");if(!Number.isFinite(e.sampleRate)||e.sampleRate<=0)throw new TypeError("Invalid AudioDataInit: sampleRate must be > 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(null==e?void 0:e.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(Bo(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*Bo(this.format);if(i.byteLength<r)throw new TypeError("Invalid AudioDataInit: insufficient data size.");this._data=i}null==no||no.register(this,{type:"audio",data:this._data},this)}allocationSize(e){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(!Number.isInteger(e.planeIndex)||e.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==e.format&&!Io.has(e.format))throw new TypeError("Invalid format.");if(void 0!==e.frameOffset&&(!Number.isInteger(e.frameOffset)||e.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==e.frameCount&&(!Number.isInteger(e.frameCount)||e.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const r=null!=(t=e.format)?t:this.format,n=null!=(i=e.frameOffset)?i:0;if(n>=this.numberOfFrames)throw new RangeError("frameOffset out of range");const s=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-n;if(s>this.numberOfFrames-n)throw new RangeError("frameCount out of range");const a=Bo(r),o=Eo(r);if(o&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!o&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(o?s:s*this.numberOfChannels)*a}copyTo(e,t){if(!Ie(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!Io.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:n}=t;let{planeIndex:s}=t,a=this.format;const o=null!=i?i:this.format;if(!o)throw new Error("Destination format not determined");const l=this.numberOfFrames,c=this.numberOfChannels,u=null!=n?n:0;if(u>=l)throw new RangeError("frameOffset out of range");const d=void 0!==r?r:l-u;if(d>l-u)throw new RangeError("frameCount out of range");const h=Bo(o),f=Eo(o);if(f&&s>=c)throw new RangeError("planeIndex out of range");if(!f&&0!==s)throw new RangeError("planeIndex out of range");const m=(f?d:d*c)*h;if(e.byteLength<m)throw new RangeError("Destination buffer is too small");const p=me(e),g=Ro(o);if(Fo(this._data)){if(it()&&c>2&&o!==a)return void Ao(this._data,p,a,o,c,s,u,d);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:u,frameCount:d,format:o})}catch(w){if("f32-planar"===o)throw w;a="f32-planar"}}const k=_o(a),y=Bo(a),b=Eo(a);let T;if(this._data instanceof xo){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=l*y*(b?1:c);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(b)if(f)T=e(s),s=0;else{T=new Uint8Array(l*y*c);for(let t=0;t<c;t++){const i=e(t);T.set(i,t*l*y)}}else T=e(0)}else if(this._data instanceof Uint8Array)T=this._data;else if(oe("f32-planar"===a),f)T=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:s})),this._data.copyTo(T,{format:"f32-planar",planeIndex:s}),s=0;else{T=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:0})*c);for(let e=0;e<c;e++)this._data.copyTo(T.subarray(e*l*y,(e+1)*l*y),{format:"f32-planar",planeIndex:e})}const v=me(T);for(let S=0;S<d;S++)if(f){let e;e=b?(s*l+(S+u))*y:((S+u)*c+s)*y;g(p,S*h,k(v,e))}else for(let e=0;e<c;e++){let t;t=b?(e*l+(S+u))*y:((S+u)*c+e)*y;g(p,(S*c+e)*h,k(v,t))}}clone(){if(this._closed)throw new Error("AudioSample is closed.");if(this._data instanceof xo){const e=new Co(this._data);return e.setTimestamp(this.timestamp),e}if(Fo(this._data)){const e=new Co(this._data.clone());return e.setTimestamp(this.timestamp),e}return new Co({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp,data:this._data})}trim(e,t=this.numberOfFrames){if(!Number.isInteger(e)||e<0)throw new TypeError("startFrame must be a non-negative integer.");if(!Number.isInteger(t)||t<0)throw new TypeError("endFrame must be a non-negative integer.");if(e>this.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t<e)throw new RangeError("endFrame must not be less than startFrame.");if(this._closed)throw new Error("AudioSample is closed.");const i=t-e,r=Bo(this.format);let n;if(Eo(this.format)){const t=i*r;if(n=new Uint8Array(t*this.numberOfChannels),i>0)for(let r=0;r<this.numberOfChannels;r++)this.copyTo(n.subarray(r*t,(r+1)*t),{planeIndex:r,format:this.format,frameOffset:e,frameCount:i})}else n=new Uint8Array(i*this.numberOfChannels*r),i>0&&this.copyTo(n,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new Co({data:n,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(null==no||no.unregister(this),this._data instanceof xo?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Fo(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof xo?this._createAudioDataFromData():Fo(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(Eo(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(new Uint8Array(t,i*e,e),{planeIndex:i,format:this.format});return new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:t})}{const e=new ArrayBuffer(this.allocationSize({planeIndex:0,format:this.format}));return this.copyTo(e,{planeIndex:0,format:this.format}),new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:e})}}toAudioBuffer(){if(this._closed)throw new Error("AudioSample is closed.");const e=new AudioBuffer({numberOfChannels:this.numberOfChannels,length:this.numberOfFrames,sampleRate:this.sampleRate}),t=new Float32Array(this.allocationSize({planeIndex:0,format:"f32-planar"})/4);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(t,{planeIndex:i,format:"f32-planar"}),e.copyToChannel(t,i);return e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}[Symbol.dispose](){this.close()}static*_fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,n=e.length,s=Math.floor(24e4/i);let a=0,o=n;for(;o>0;){const n=Math.min(s,o),l=new Float32Array(i*n);for(let t=0;t<i;t++)e.copyFromChannel(l.subarray(t*n,(t+1)*n),t,a);yield new Co({format:"f32-planar",sampleRate:r,numberOfFrames:n,numberOfChannels:i,timestamp:t+a/r,data:l}),a+=n,o-=n}}static fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,n=e.length,s=Math.floor(24e4/i);let a=0,o=n;const l=[];for(;o>0;){const n=Math.min(s,o),c=new Float32Array(i*n);for(let t=0;t<i;t++)e.copyFromChannel(c.subarray(t*n,(t+1)*n),t,a);const u=new Co({format:"f32-planar",sampleRate:r,numberOfFrames:n,numberOfChannels:i,timestamp:t+a/r,data:c});l.push(u),a+=n,o-=n}return l}}const Bo=e=>{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},Eo=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},_o=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},Ro=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,qe(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,qe(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,qe(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},Fo=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,Ao=(e,t,i,r,n,s,a,o)=>{const l=_o(i),c=Ro(r),u=Bo(i),d=Bo(r),h=Eo(i);if(Eo(r))if(h){const r=new ArrayBuffer(o*u),n=me(r);e.copyTo(r,{planeIndex:s,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,e*d,l(n,e*u))}}else{const r=new ArrayBuffer(o*n*u),h=me(r);e.copyTo(r,{planeIndex:0,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,e*d,l(h,(e*n+s)*u))}}else if(h){const r=new ArrayBuffer(o*u),s=me(r);for(let h=0;h<n;h++){e.copyTo(r,{planeIndex:h,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,(e*n+h)*d,l(s,e*u))}}}else{const r=new ArrayBuffer(o*n*u),s=me(r);e.copyTo(r,{planeIndex:0,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++)for(let i=0;i<n;i++){const r=e*n+i;c(t,r*d,l(s,r*u))}}},Mo=[],Do=[],No=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},Oo=e=>{if(!mt(e))throw new TypeError("timestamp must be a number.")},Lo=(e,t,i)=>i.verifyKeyPackets?t.then(t=>Y(null,null,function*(){if(!t||"delta"===t.type)return t;const i=yield e.determinePacketType(t);return i&&(t.type=i),t})):t;class zo{constructor(e){if(!(e instanceof el))throw new TypeError("track must be an InputTrack.");this._track=e}getFirstPacket(){return Y(this,arguments,function*(e={}){if(No(e),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getFirstPacket(e),e)})}getFirstKeyPacket(){return Y(this,arguments,function*(e={}){No(e);const t=yield this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null})}getPacket(e){return Y(this,arguments,function*(e,t={}){if(Oo(e),No(t),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getPacket(e,t),t)})}getNextPacket(e){return Y(this,arguments,function*(e,t={}){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(No(t),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getNextPacket(e,t),t)})}getKeyPacket(e){return Y(this,arguments,function*(e,t={}){if(Oo(e),No(t),this._track.input._disposed)throw new gl;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=yield this._track._backing.getKeyPacket(e,t);if(!i)return i;oe("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getKeyPacket(i.timestamp-1/(yield this._track.getTimeResolution()),t):i})}getNextKeyPacket(e){return Y(this,arguments,function*(e,t={}){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(No(t),this._track.input._disposed)throw new gl;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=yield this._track._backing.getNextKeyPacket(e,t);if(!i)return i;oe("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getNextKeyPacket(i,t):i})}packets(e,t,i={}){if(void 0!==e&&!(e instanceof Tr))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!(null==i?void 0:i.metadataOnly))throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof Tr))throw new TypeError("endPacket must be an EncodedPacket.");if(No(i),this._track.input._disposed)throw new gl;const r=[];let{promise:n,resolve:s}=Ae(),{promise:a,resolve:o}=Ae(),l=!1,c=!1,u=null,d=!1;const h=[],f=()=>Math.max(2,h.length);(()=>Y(this,null,function*(){let u=null!=e?e:yield this.getFirstPacket(i);for(;u&&!c&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=(null==t?void 0:t.sequenceNumber));)r.length>f()?(({promise:a,resolve:o}=Ae()),yield a):(r.push(u),s(),({promise:n,resolve:s}=Ae()),u=yield this.getNextPacket(u,i));l=!0,s()}))().catch(e=>{d||(u=e,d=!0,s())});const m=this._track;return{next(){return Y(this,null,function*(){for(;;){if(m.input._disposed)throw new gl;if(c)return{value:void 0,done:!0};if(d)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(h.push(t);h.length>0&&t-h[0]>=1e3;)h.shift();return o(),{value:e,done:!1}}if(l)return{value:void 0,done:!0};yield n}})},return(){return Y(this,null,function*(){return c=!0,o(),s(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}class Uo{constructor(e,t){this.onSample=e,this.onError=t}}class qo{mediaSamplesInRange(e=-1/0,t=1/0,i){Oo(e),Oo(t);const r=[];let n=!1,s=null,{promise:a,resolve:o}=Ae(),{promise:l,resolve:c}=Ae(),u=!1,d=!1,h=!1,f=null,m=null,p=!1;const g=V(H({},i),{verifyKeyPackets:!0,metadataOnly:!1});(()=>Y(this,null,function*(){var i;f=yield this._createDecoder(i=>{c(),i.timestamp>=t&&(d=!0),d?i.close():(s&&(i.timestamp>e?(r.push(s),n=!0):s.close()),i.timestamp>=e&&(r.push(i),n=!0),s=n?null:i,r.length>0&&(o(),({promise:a,resolve:o}=Ae())))},e=>{p||(m=e,p=!0,o())});const k=this._createPacketSink(),y=null!=(i=yield k.getKeyPacket(e,g))?i:yield k.getFirstKeyPacket(g);let b=y;const T=k.packets(null!=y?y:void 0,void 0,g);for(yield T.next();b&&!d&&!this._track.input._disposed;){const e=Wo(r.length);if(r.length+f.getDecodeQueueSize()>e){({promise:l,resolve:c}=Ae()),yield l;continue}f.decode(b);const t=yield T.next();if(t.done)break;b=t.value}yield T.return(),h||this._track.input._disposed||(yield f.flush()),!n&&s&&r.push(s),u=!0,o()}))().catch(e=>{p||(m=e,p=!0,o())}).finally(()=>{null==f||f.close()});const k=this._track,y=()=>{null==s||s.close();for(const e of r)e.close()};return{next(){return Y(this,null,function*(){for(;;){if(k.input._disposed)throw h=!0,d=!0,y(),new gl;if(h)return{value:void 0,done:!0};if(p)throw h=!0,d=!0,y(),m;if(r.length>0){const e=r.shift();return c(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};yield a}})},return(){return Y(this,null,function*(){return h=!0,d=!0,c(),o(),y(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=function(e){return Z(this,null,function*(){Symbol.iterator in e?yield*ee(e[Symbol.iterator]()):yield*ee(e[Symbol.asyncIterator]())})}(e),r=[],n=[];let{promise:s,resolve:a}=Ae(),{promise:o,resolve:l}=Ae(),c=!1,u=!1,d=null,h=null,f=!1;const m=e=>{n.push(e),a(),({promise:s,resolve:a}=Ae())},p=V(H({},t),{verifyKeyPackets:!0,metadataOnly:!1});(()=>Y(this,null,function*(){d=yield this._createDecoder(e=>{if(l(),u)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i<t;i++)m(i<t-1?e.clone():e);else e.close()},e=>{f||(h=e,f=!0,a())});const e=this._createPacketSink();let t=null,s=null,g=-1;const k=()=>Y(this,null,function*(){oe(s),oe(d);let t=s;for(d.decode(t);t.sequenceNumber<g;){const i=Wo(n.length);for(;n.length+d.getDecodeQueueSize()>i&&!u;)({promise:o,resolve:l}=Ae()),yield o;if(u)break;const r=yield e.getNextPacket(t,p);oe(r),d.decode(r),t=r}g=-1}),y=()=>Y(this,null,function*(){oe(d),yield d.flush();for(let e=0;e<r.length;e++)m(null);r.length=0});try{for(var b,T,v,w=te(i);b=!(T=yield w.next()).done;b=!1){const i=T.value;if(Oo(i),u||this._track.input._disposed)break;const n=yield e.getPacket(i,p),a=n&&(yield e.getKeyPacket(i,p));a?(t&&(a.sequenceNumber!==s.sequenceNumber||n.timestamp<t.timestamp)&&(yield k(),yield y()),r.push(n.timestamp),g=Math.max(n.sequenceNumber,g),t=n,s=a):(-1!==g&&(yield k(),yield y()),m(null),t=null)}}catch(T){v=[T]}finally{try{b&&(T=w.return)&&(yield T.call(w))}finally{if(v)throw v[0]}}u||this._track.input._disposed||(-1!==g&&(yield k()),yield y()),c=!0,a()}))().catch(e=>{f||(h=e,f=!0,a())}).finally(()=>{null==d||d.close()});const g=this._track,k=()=>{for(const e of n)null==e||e.close()};return{next(){return Y(this,null,function*(){for(;;){if(g.input._disposed)throw u=!0,k(),new gl;if(u)return{value:void 0,done:!0};if(f)throw u=!0,k(),h;if(n.length>0){const e=n.shift();return oe(void 0!==e),l(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};yield s}})},return(){return Y(this,null,function*(){return u=!0,l(),a(),k(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}const Wo=e=>0===e?40:8;class Ho extends Uo{constructor(e,t,i,r,n,s){var a,o,l,c,u,d,h,f;super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=n,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new et,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const m=Mo.find(e=>e.supports(i,r));if(m)this.customDecoder=new m,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof lo))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();oe(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(at()){if("avc"===i&&this.decoderConfig.description){const e=Qt(fe(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=Jt(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig=V(H({},this.decoderConfig),{hardwareAcceleration:"prefer-software"})),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=ei(t),this.decoderConfig=V(H({},this.decoderConfig),{description:Gt(e)})))}}Se(this.decoderConfig.colorSpace)||(this.decoderConfig=V(H({},this.decoderConfig),{colorSpace:{primaries:null!=(o=null==(a=this.decoderConfig.colorSpace)?void 0:a.primaries)?o:"bt709",matrix:null!=(c=null==(l=this.decoderConfig.colorSpace)?void 0:l.matrix)?c:"bt709",transfer:null!=(d=null==(u=this.decoderConfig.colorSpace)?void 0:u.transfer)?d:"bt709",fullRange:null!=(f=null==(h=this.decoderConfig.colorSpace)?void 0:h.fullRange)&&f}}))}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){var e,t;return this.customDecoder?this.customDecoderQueueSize:(oe(this.decoder),Math.max(this.decoder.decodeQueueSize,null!=(t=null==(e=this.alphaDecoder)?void 0:e.decodeQueueSize)?t:0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(oe(this.decoder),it()||Fe(this.inputTimestamps,e.timestamp,e=>e),at()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const n of Wt(e.data,this.decoderConfig)){const r=Ht(e.data[n.offset]);if(i||(i=r>=1&&r<=5),r===Nt.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(n.offset,n.offset+n.length))}if(!this.decoderConfig.description)for(let e=0;e<t.length;e++){const i=t[e];if(Ht(i[0])!==Nt.SPS)continue;const r=Jt(i);r&&0!==r.maxDecFrameBuffering&&1!==r.bitstreamRestrictionFlag&&(t[e]=ei(r));break}const r=((e,t)=>{if(t.description){const i=3&fe(t.description)[4];return Xt(e,i+1)}return Kt(e)})(t,this.decoderConfig);e=new Tr(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=mi(e.data,this.decoderConfig);t&&(e=new Tr(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new jo),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();oe(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();oe(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=wi(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(null!=t?t:e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of ti(e,this.decoderConfig)){const i=ii(e[t.offset]);if(i===Lt.RASL_N||i===Lt.RASL_R)return!0}return!1}sampleHandler(e){if(it()){if(this.sampleQueue.length>0&&e.timestamp>=ce(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}Fe(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();oe(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}mergeAlpha(e,t){return Y(this,null,function*(){const i=Ae();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){oe(this.merger);const i=yield this.merger.merge(e,t);r.sample=new lo(i)}else r.sample=new lo(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(n){Me(this.finalSamples,r),this.onError(n)}finally{Me(this.mergeAlphaPromises,i.promise),i.resolve()}})}flush(){return Y(this,null,function*(){var e;if(this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(oe(this.decoder),yield Promise.all([this.decoder.flush(),null==(e=this.alphaDecoder)?void 0:e.flush()]),yield Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),it()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1})}close(){var e;this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(oe(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,null==(e=this.merger)||e.close());for(const t of this.sampleQueue)t.close();this.sampleQueue.length=0}}let Vo=null;class jo{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!Vo){const e=new Blob([`(${Ko.toString()})()`],{type:"application/javascript"});Vo=URL.createObjectURL(e)}const e=qe(navigator.hardwareConcurrency,1,4);for(let t=0;t<e;t++){const e=new Worker(Vo);e.addEventListener("message",e=>{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=Ae();this.pendingRequests.set(i,r);const n=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,n.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const Ko=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:n,alpha:s}=e.data;i=i.then(()=>Y(null,null,function*(){try{const e=yield r(n,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{n.close(),s.close()}}))});const r=(e,t)=>Y(null,null,function*(){const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),l=i.includes("P12"),c=r.includes("P10"),u=r.includes("P12");if(c!==o||u!==l)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return yield n(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return yield s(e,t,i);if("NV12"===i)return yield a(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)}),n=(e,t,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=new Uint8Array(4*d);yield e.copyTo(h);const f=yield o(t,c,u,1);for(let e=0,t=3;e<d;e++,t+=4)h[t]=f[e];const m={format:"RGBX"===i||"RGBA"===i?"RGBA":"BGRA",codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[h.buffer]};return new VideoFrame(h,m)}),s=(e,t,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=i.includes("P10"),h=i.includes("P12"),f=d||h?2:1;let m,p;i.startsWith("I420")?(m=Math.ceil(c/2),p=Math.ceil(u/2)):i.startsWith("I422")?(m=Math.ceil(c/2),p=u):(m=c,p=u);const g=c*u,k=g*f,y=m*p*f,b=new Uint8Array(k+2*y+g*f);yield e.copyTo(b);const T=yield o(t,c,u,f),v=k+2*y;b.set(T,v);const w={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[b.buffer]};return new VideoFrame(b,w)}),a=(e,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=Math.ceil(c/2)*Math.ceil(u/2),f=e.allocationSize();t&&t.byteLength===f||(t=new Uint8Array(f)),yield e.copyTo(t);const m=new Uint8Array(d+2*h+d);m.set(t.subarray(0,d),0);const p=d,g=d+h,k=d;for(let e=0;e<h;e++)m[p+e]=t[k+2*e],m[g+e]=t[k+2*e+1];const y=yield o(i,c,u,1);m.set(y,d+2*h);const b={format:"I420A",codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[m.buffer]};return new VideoFrame(m,b)}),o=(t,i,r,n)=>Y(null,null,function*(){const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),yield t.copyTo(e);const a=t.format;if("RGBA"===a||"BGRA"===a||"RGBX"===a||"BGRX"===a){const t="RGBA"===a||"RGBX"===a?0:2,n=i*r;for(let i=0;i<n;i++)e[i]=e[4*i+t];return e.subarray(0,n)}return e.subarray(0,i*r*n)})},Xo=e=>{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class $o extends qo{constructor(e,t={}){if(!(e instanceof rl))throw new TypeError("videoTrack must be an InputVideoTrack.");Xo(t),super(),this._track=e,this._decoderOptions=t}_createDecoder(e,t){return Y(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(ot("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getRotation();let n=yield this._track.getDecoderConfig();const s=yield this._track.getTimeResolution();return oe(i&&n),n=V(H({},n),{hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency}),new Ho(e,t,i,n,r,s)})}_createPacketSink(){return new zo(this._track)}getSample(e){return Y(this,arguments,function*(e,t={}){Oo(e);try{for(var i,r,n,s=te(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Go{constructor(e,t={}){var i,r,n;if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof rl))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&ko(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&Xo(t.decoderOptions),this._videoTrack=e,this._alpha=null!=(i=t.alpha)&&i,this._options=t,this._fit=null!=(r=t.fit)?r:"fill",this._videoSampleSink=new $o(e,t.decoderOptions),this._canvasPool=Array.from({length:null!=(n=t.poolSize)?n:0},()=>null)}_ensureInit(){var e;return null!=(e=this._initPromise)?e:this._initPromise=(()=>Y(this,null,function*(){var e;const t=this._options,i=this._videoTrack,r=null!=(e=t.rotation)?e:yield i.getRotation(),n=yield i.getSquarePixelWidth(),s=yield i.getSquarePixelHeight(),[a,o]=r%180===0?[n,s]:[s,n];let l=t.crop;l&&(l=go(l,a,o));let[c,u]=l?[l.width,l.height]:[a,o];const d=c/u;void 0!==t.width&&void 0===t.height?(c=t.width,u=Math.round(c/d)):void 0===t.width&&void 0!==t.height?(u=t.height,c=Math.round(u*d)):void 0!==t.width&&void 0!==t.height&&(c=t.width,u=t.height),this._width=c,this._height=u,this._rotation=r,this._crop=l}))()}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],n=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),n=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||nt()});oe(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:n,fillBlack:!this._alpha&&nt()});const a={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),a}getCanvas(e,t){return Y(this,null,function*(){Oo(e),yield this._ensureInit();const i=yield this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)})}canvases(e,t,i){return Z(this,null,function*(){yield new J(this._ensureInit()),yield*ee(Ue(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e)))})}canvasesAtTimestamps(e,t){return Z(this,null,function*(){yield new J(this._ensureInit()),yield*ee(Ue(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e)))})}}class Qo extends Uo{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new et,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const n=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const n=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(n*s)/s),e(t)},s=Do.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof Co))throw new TypeError("The argument passed to onSample must be an AudioSample.");n(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{n(new Co(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(oe(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(oe(this.decoder),null!=this.expectedFirstTimestamp||(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}flush(){return Y(this,null,function*(){this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(oe(this.decoder),yield this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0})}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(oe(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class Yo extends Uo{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,oe(Xi.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:n,littleEndian:s}=ar(this.codec);switch(this.inputSampleSize=n,n){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-q(2,7):"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const n=(1<<i|(15&r)<<i-4|1<<i-5)-33;return 0===t?n:-n})(e.getUint8(t)):"alaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let n=0;return n=4!==i?1<<i|(15&r)<<i-4|1<<i-5:r<<1|1,0===t?n:-n})(e.getUint8(t)):oe(!1);break;case 2:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint16(t,s)-q(2,15):"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):oe(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>Le(e,t,s)-q(2,23):"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>Le(e,t,i)<<8>>8)(e,t,s):oe(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-q(2,31):"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):oe(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):oe(!1);break;default:Oe(n),oe(!1)}switch(n){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+q(2,7)));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:Oe(n),oe(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=me(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,n=new ArrayBuffer(r),s=new DataView(n);for(let c=0;c<i*this.decoderConfig.numberOfChannels;c++){const e=c*this.inputSampleSize,i=c*this.outputSampleSize,r=this.readInputValue(t,e);this.writeOutputValue(s,i,r)}const a=i/this.decoderConfig.sampleRate;(null===this.currentTimestamp||Math.abs(e.timestamp-this.currentTimestamp)>=a)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=a;const l=new Co({format:this.outputFormat,data:n,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(l)}flush(){return Y(this,null,function*(){})}close(){}}class Jo extends qo{constructor(e){if(!(e instanceof nl))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}_createDecoder(e,t){return Y(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(ot("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getDecoderConfig();return oe(i&&r),Xi.includes(r.codec)?new Yo(e,t,r):new Qo(e,t,i,r)})}_createPacketSink(){return new zo(this._track)}getSample(e){return Y(this,arguments,function*(e,t={}){Oo(e);try{for(var i,r,n,s=te(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Zo{constructor(e){if(!(e instanceof nl))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new Jo(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}getBuffer(e,t){return Y(this,null,function*(){Oo(e);const i=yield this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)})}buffers(e,t,i){return Ue(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return Ue(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class el{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof rl}isAudioTrack(){return this instanceof nl}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}getInternalCodecId(){return Y(this,null,function*(){return this._backing.getInternalCodecId()})}get internalCodecId(){return tl(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}getLanguageCode(){return Y(this,null,function*(){return this._backing.getLanguageCode()})}get languageCode(){return tl(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}getName(){return Y(this,null,function*(){return this._backing.getName()})}get name(){return tl(this._backing.getName(),"name","getName")}getTimeResolution(){return Y(this,null,function*(){return this._backing.getTimeResolution()})}get timeResolution(){return tl(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}isRelativeToUnixEpoch(){return Y(this,null,function*(){return this._backing.isRelativeToUnixEpoch()})}getUnixTimeForTimestamp(e){return Y(this,null,function*(){return this._backing.getUnixTimeForTimestamp(e)})}hasUnixTimeMapping(){return Y(this,null,function*(){return null!==(yield this._backing.getUnixTimeForTimestamp(yield this.getFirstTimestamp()))})}getDisposition(){return Y(this,null,function*(){return this._backing.getDisposition()})}get disposition(){return tl(this._backing.getDisposition(),"disposition","getDisposition")}getBitrate(){return Y(this,null,function*(){return this._backing.getBitrate()})}getAverageBitrate(){return Y(this,null,function*(){return this._backing.getAverageBitrate()})}getFirstTimestamp(){return Y(this,null,function*(){var e;const t=yield this._backing.getFirstPacket({metadataOnly:!0});return null!=(e=null==t?void 0:t.timestamp)?e:0})}computeDuration(e){return Y(this,null,function*(){var t,i;const r=yield this._backing.getPacket(1/0,H({metadataOnly:!0},e)),n=(null!=(t=null==r?void 0:r.timestamp)?t:0)+(null!=(i=null==r?void 0:r.duration)?i:0);return je(n,yield this.getTimeResolution())})}getDurationFromMetadata(){return Y(this,arguments,function*(e={}){return this._backing.getDurationFromMetadata(e)})}computePacketStats(e=1/0,t){return Y(this,null,function*(){const i=new zo(this);let r=1/0,n=-1/0,s=0,a=0;try{for(var o,l,c,u=te(i.packets(void 0,void 0,H({metadataOnly:!0},t)));o=!(l=yield u.next()).done;o=!1){const t=l.value;if(s>=e&&t.timestamp>=n)break;r=Math.min(r,t.timestamp),n=Math.max(n,t.timestamp+t.duration),s++,a+=t.byteLength}}catch(l){c=[l]}finally{try{o&&(l=u.return)&&(yield l.call(u))}finally{if(c)throw c[0]}}return{packetCount:s,averagePacketRate:s?Number((s/(n-r)).toPrecision(16)):0,averageBitrate:s?Number((8*a/(n-r)).toPrecision(16)):0}})}isLive(){return Y(this,null,function*(){return null!==(yield this._backing.getLiveRefreshInterval())})}getLiveRefreshInterval(){return Y(this,null,function*(){return this._backing.getLiveRefreshInterval()})}canBePairedWith(e){if(!(e instanceof el))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&(this._backing.getPairingMask()&e._backing.getPairingMask())!==BigInt("0")}getPairableTracks(e){return Y(this,null,function*(){return this.input.getTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPairableVideoTracks(e){return Y(this,null,function*(){return this.input.getVideoTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPairableAudioTracks(e){return Y(this,null,function*(){return this.input.getAudioTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableVideoTrack(e){return Y(this,null,function*(){return this.input.getPrimaryVideoTrack(ll({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableAudioTrack(e){return Y(this,null,function*(){return this.input.getPrimaryAudioTrack(ll({filter:e=>e.canBePairedWith(this)},e))})}hasPairableTrack(e){return Y(this,null,function*(){e&&(e=il(e));const t=yield this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||(yield e(i))))return!0;return!1})}hasPairableVideoTrack(e){return e&&(e=il(e)),this.hasPairableTrack(t=>Y(this,null,function*(){return t.isVideoTrack()&&(!e||(yield e(t)))}))}hasPairableAudioTrack(e){return e&&(e=il(e)),this.hasPairableTrack(t=>Y(this,null,function*(){return t.isAudioTrack()&&(!e||(yield e(t)))}))}}const tl=(e,t,i)=>{if(ct(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},il=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return ct(r)?r.then(i):i(r)}:void 0};class rl extends el{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}getCodec(){return Y(this,null,function*(){return this._backing.getCodec()})}get codec(){return tl(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return Y(this,null,function*(){var e,t,i;return null!=(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:"prores"===(yield this._backing.getCodec())})}getCodedWidth(){return Y(this,null,function*(){return this._backing.getCodedWidth()})}get codedWidth(){return tl(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}getCodedHeight(){return Y(this,null,function*(){return this._backing.getCodedHeight()})}get codedHeight(){return tl(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}getRotation(){return Y(this,null,function*(){return this._backing.getRotation()})}get rotation(){return tl(this._backing.getRotation(),"rotation","getRotation")}getSquarePixelWidth(){return Y(this,null,function*(){return this._backing.getSquarePixelWidth()})}get squarePixelWidth(){return tl(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}getSquarePixelHeight(){return Y(this,null,function*(){return this._backing.getSquarePixelHeight()})}get squarePixelHeight(){return tl(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}getPixelAspectRatio(){return Y(this,null,function*(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=yt({num:(yield this.getSquarePixelWidth())*(yield this.getCodedHeight()),den:(yield this.getSquarePixelHeight())*(yield this.getCodedWidth())})})}get pixelAspectRatio(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=yt({num:tl(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*tl(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:tl(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*tl(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")})}getDisplayWidth(){return Y(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()})}get displayWidth(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(void 0!==i){const e=tl(i,"displayWidth","getDisplayWidth");if(null!==e)return e}const r=tl(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return tl(r,"displayWidth","getDisplayWidth")}getDisplayHeight(){return Y(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()})}get displayHeight(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(void 0!==i){const e=tl(i,"displayHeight","getDisplayHeight");if(null!==e)return e}const r=tl(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return tl(r,"displayHeight","getDisplayHeight")}getColorSpace(){return Y(this,null,function*(){return this._backing.getColorSpace()})}hasHighDynamicRange(){return Y(this,null,function*(){const e=yield this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix})}canBeTransparent(){return Y(this,null,function*(){return this._backing.canBeTransparent()})}getDecoderConfig(){return Y(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return Y(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return Y(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(oe(null!==t),Mo.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(yield VideoDecoder.isConfigSupported(e)).supported}catch(e){return Pt._error("Error during decodability check:",e),!1}})}determinePacketType(e){return Y(this,null,function*(){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=yield this.getCodec();if(null===t)return null;const i=yield this.getDecoderConfig();return oe(i),wi(t,i,e.data)})}computeFrameRateMetrics(){return Y(this,arguments,function*(e={}){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!mt(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const r=yield this.getTimeResolution(),n=null!=(t=e.targetPacketCount)?t:256,s=new zo(this),a=[];let o=-1/0,l=0;try{for(var c,u,d,h=te(s.packets(void 0,void 0,{metadataOnly:!0}));c=!(u=yield h.next()).done;c=!1){const e=u.value;if(a.length>=n&&e.timestamp>=o)break;a.push(e.timestamp),o=Math.max(o,e.timestamp),l++}}catch(u){d=[u]}finally{try{c&&(u=h.return)&&(yield u.call(h))}finally{if(d)throw d[0]}}const f=new Float64Array(a.length);for(let R=0;R<a.length;R++)f[R]=Math.round(a[R]*r);f.sort();let m=1;for(let R=1;R<f.length;R++)f[R]!==f[m-1]&&(f[m++]=f[R]);if(m<2)return{underlyingFrameRate:null,bestGuessFrameRate:r,minFrameRate:r,maxFrameRate:r,averageFrameRate:r,medianFrameRate:r,frameRateIsConstant:!0,probedPacketCount:l};const p=f.subarray(0,m),g=ul(p,r),k=null!=g?g:r,y=null!==g?r/g:null,b=new Map;let T=1/0,v=-1/0,w=0;for(let R=1;R<m;R++){const e=p[R]-p[R-1],t=null!==y?Math.max(1,Math.round(e/y)):e;b.set(t,(null!=(i=b.get(t))?i:0)+1),T=Math.min(T,t),v=Math.max(v,t),w+=t}const S=m-1,P=[...b.keys()].sort((e,t)=>e-t),I=S-1>>1,x=S>>1;let C=0,B=0,E=0;for(const R of P)if(E+=b.get(R),0===C&&E>I&&(C=R),E>x){B=R;break}const _=(k/C+k/B)/2;return{underlyingFrameRate:g,bestGuessFrameRate:null!==g?g:hl(_),minFrameRate:k/v,maxFrameRate:k/T,averageFrameRate:k*S/w,medianFrameRate:_,frameRateIsConstant:null!==g&&1===T&&1===v,probedPacketCount:l}})}}class nl extends el{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}getCodec(){return Y(this,null,function*(){return this._backing.getCodec()})}get codec(){return tl(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return Y(this,null,function*(){var e,t,i;return null==(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))||i})}getNumberOfChannels(){return Y(this,null,function*(){return this._backing.getNumberOfChannels()})}get numberOfChannels(){return tl(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}getSampleRate(){return Y(this,null,function*(){return this._backing.getSampleRate()})}get sampleRate(){return tl(this._backing.getSampleRate(),"sampleRate","getSampleRate")}getDecoderConfig(){return Y(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return Y(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return Y(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(oe(null!==t),Do.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(yield AudioDecoder.isConfigSupported(e)).supported}catch(e){return Pt._error("Error during decodability check:",e),!1}})}determinePacketType(e){return Y(this,null,function*(){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");return null===(yield this.getCodec())?null:"key"})}}const sl=e=>-(null!=e?e:-1/0),al=e=>-e,ol=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when provided, must be a function.");if(void 0!==e.sortBy&&"function"!==typeof e.sortBy)throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:e.filter?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("query.filter must return or resolve to a boolean.");return e},r=e.filter(t);return ct(r)?r.then(i):i(r)}:void 0,sortBy:e.sortBy?t=>{const i=e=>{if("number"!==typeof e&&(!Array.isArray(e)||!e.every(e=>"number"===typeof e)))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return e},r=e.sortBy(t);return ct(r)?r.then(i):i(r)}:void 0}},ll=(e,t)=>({filter:(null==e?void 0:e.filter)||(null==t?void 0:t.filter)?i=>{var r,n;const s=null==(n=null==(r=null==e?void 0:e.filter)?void 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t?(i=xl(e,!0),r=xl(e,!0)):(r=xl(e,!1),i=xl(e,!1)),4294967296*r+i},Rl=e=>4294967296*Cl(e)+Cl(e),Fl=e=>4294967296*El(e)+Cl(e),Al=e=>{const t=Bl(e),i=(e=>{bl(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},Ml=e=>{bl(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Dl=e=>{bl(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},Nl=(e,t)=>{bl(e,t);let i="";for(let r=0;r<t;r++)i+=String.fromCharCode(e.bytes[e.bufferPos++]);return i},Ol=(e,t,i)=>pe.decode(Tl(e,t)).split("\n").map(e=>e.trim()).filter(e=>{var t;return e.length>0&&!(null==(t=null==i?void 0:i.ignore)?void 0:t.call(i,e))});var Ll,zl,Ul,ql;(zl=Ll||(Ll={}))[zl.Unsynchronisation=128]="Unsynchronisation",zl[zl.ExtendedHeader=64]="ExtendedHeader",zl[zl.ExperimentalIndicator=32]="ExperimentalIndicator",zl[zl.Footer=16]="Footer",(ql=Ul||(Ul={}))[ql.ISO_8859_1=0]="ISO_8859_1",ql[ql.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",ql[ql.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",ql[ql.UTF_8=3]="UTF_8";const Wl=128,Hl=10,Vl=["Blues","Classic rock","Country","Dance","Disco","Funk","Grunge","Hip-hop","Jazz","Metal","New age","Oldies","Other","Pop","Rhythm and blues","Rap","Reggae","Rock","Techno","Industrial","Alternative","Ska","Death metal","Pranks","Soundtrack","Euro-techno","Ambient","Trip-hop","Vocal","Jazz & funk","Fusion","Trance","Classical","Instrumental","Acid","House","Game","Sound clip","Gospel","Noise","Alternative rock","Bass","Soul","Punk","Space","Meditative","Instrumental pop","Instrumental rock","Ethnic","Gothic","Darkwave","Techno-industrial","Electronic","Pop-folk","Eurodance","Dream","Southern 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u;if(0===c[28]&&0!==c[29]){const i=c[29];i>0&&(null!=t.trackNumber||(t.trackNumber=i)),e.skip(-30),u=Kl(e,28),e.skip(2)}else e.skip(-30),u=Kl(e,30);u&&(null!=t.comment||(t.comment=u));const d=vl(e);d<Vl.length&&(null!=t.genre||(t.genre=Vl[d]))},Kl=(e,t)=>{const i=Tl(e,t),r=ut(i.indexOf(0),i.length),n=i.subarray(0,r);let s="";for(let a=0;a<n.length;a++)s+=String.fromCharCode(n[a]);return s.trimEnd()},Xl=e=>{const t=e.filePos,i=Nl(e,3),r=vl(e),n=vl(e),s=vl(e),a=Cl(e);if("ID3"!==i||255===r||255===n||0!==(2155905152&a))return e.filePos=t,null;let o=mr(a);return s&Ll.Footer&&(o+=Hl),{majorVersion:r,revision:n,flags:s,size:o}},$l=(e,t,i)=>{var r,n,s,a,o,l;if(![2,3,4].includes(t.majorVersion))return void Pt._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Ll.Footer?t.size-Hl:t.size,u=Tl(e,c),d=new Gl(t,u);if(t.flags&Ll.Unsynchronisation&&3===t.majorVersion&&d.ununsynchronizeAll(),t.flags&Ll.ExtendedHeader){const e=d.readU32();3===t.majorVersion?d.pos+=e:d.pos+=e-4}for(;d.pos<=d.bytes.length-d.frameHeaderSize();){const e=d.readId3V2Frame();if(!e)break;const c=d.pos,u=d.pos+e.size;let h=!1,f=!1,m=!1;if(3===t.majorVersion?(h=!!(64&e.flags),f=!!(128&e.flags)):4===t.majorVersion&&(h=!!(4&e.flags),f=!!(8&e.flags),m=!!(2&e.flags)||!!(t.flags&Ll.Unsynchronisation)),h)Pt._warn(`Skipping encrypted ID3v2 frame ${e.id}`),d.pos=u;else if(f)Pt._warn(`Skipping compressed ID3v2 frame ${e.id}`),d.pos=u;else{if(m&&d.ununsynchronizeRegion(d.pos,u),null!=i.raw||(i.raw={}),"TXXX"===e.id){const e=null!=(n=(r=i.raw).TXXX)?n:r.TXXX={},t=d.readId3V2TextEncoding(),s=d.readId3V2Text(t,u),a=d.readId3V2Text(t,u);null!=e[s]||(e[s]=a)}else"T"===e.id[0]?null!=(s=i.raw)[a=e.id]||(s[a]=d.readId3V2EncodingAndText(u)):null!=(o=i.raw)[l=e.id]||(o[l]=d.readBytes(e.size));switch(d.pos=c,e.id){case"TIT2":case"TT2":null!=i.title||(i.title=d.readId3V2EncodingAndText(u));break;case"TIT3":case"TT3":null!=i.description||(i.description=d.readId3V2EncodingAndText(u));break;case"TPE1":case"TP1":null!=i.artist||(i.artist=d.readId3V2EncodingAndText(u));break;case"TALB":case"TAL":null!=i.album||(i.album=d.readId3V2EncodingAndText(u));break;case"TPE2":case"TP2":null!=i.albumArtist||(i.albumArtist=d.readId3V2EncodingAndText(u));break;case"TRCK":case"TRK":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.trackNumber||(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.tracksTotal||(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.discNumber||(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.discsTotal||(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=d.readId3V2EncodingAndText(u);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==Vl[e]){null!=i.genre||(i.genre=Vl[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==Vl[e]){null!=i.genre||(i.genre=Vl[e]);break}}null!=i.genre||(i.genre=e)}break;case"TDRC":case"TDAT":{const e=d.readId3V2EncodingAndText(u),t=new Date(e);Number.isNaN(t.getTime())||null!=i.date||(i.date=t)}break;case"TYER":case"TYE":{const e=d.readId3V2EncodingAndText(u),t=Number.parseInt(e,10);Number.isInteger(t)&&(null!=i.date||(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.lyrics||(i.lyrics=d.readId3V2Text(e,u))}break;case"COMM":case"COM":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.comment||(i.comment=d.readId3V2Text(e,u))}break;case"APIC":case"PIC":{const e=d.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=d.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=d.readId3V2Text(e,u);const n=d.readU8(),s=d.readId3V2Text(e,u).trimEnd(),a=u-d.pos;if(a>=0){const e=d.readBytes(a);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===n?"coverFront":4===n?"coverBack":"unknown",description:s})}}break;default:d.pos+=e.size}d.pos=u}}};class Gl{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 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this.pos=i+Math.min(e+1,r.length),pe.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class Ql{constructor(e){this.host=e,this.closed=!1,this.resumes=new WeakMap}ensure(e){if(this.closed)return null;if(this.host.audioContext)return this.host.audioContext;const t=window.AudioContext||window.webkitAudioContext;let i;try{i=new t({sampleRate:e})}catch(n){i=new t}if(this.closed)return i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null;let r=null;try{r=i.createGain(),r.connect(i.destination);const e=this.host.muted?0:this.host.volume;return r.gain.value=e*e,this.closed?(r.disconnect(),i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null):(this.host.audioContext=i,this.host.gainNode=r,i)}catch(s){try{null==r||r.disconnect()}catch(a){console.warn("MediaBunny gain setup cleanup:",a)}throw i.close().catch(e=>console.warn("MediaBunny context 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n=function(e,t,i,r){const n=e.audioContextStartTime+(t-e.playbackTimeAtStart)/e.playbackRate,s=(n+i/e.playbackRate-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;return{startAt:Math.max(n,r),offset:n<r?(r-n)*e.playbackRate:null,endMediaTime:s}}(this.host,t,e.duration,i.currentTime);if(null!==n.offset&&n.offset>=e.duration)return;const s=i.createBufferSource();this.host.queuedNodes.add(s);try{s.buffer=e,s.connect(r),s.playbackRate.value=this.host.playbackRate,s.onended=()=>{if(this.host.queuedNodes.has(s))try{this.release(s,!1)}catch(e){console.warn("MediaBunny ended node cleanup:",e)}},null===n.offset?s.start(n.startAt):s.start(n.startAt,n.offset),this.host.latestScheduledEndTime=Math.max(this.host.latestScheduledEndTime,n.endMediaTime)}catch(a){try{this.release(s,!0)}catch(o){console.warn("MediaBunny audio node cleanup:",o)}throw a}}}const Jl=Symbol("cancelled");class Zl{constructor(){this.cancelled=!1,this.waits=new Set,this.timers=new Map}wait(e){return new 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e}ensureAudioContext(e){K(this,r).ensure(e)}updateGain(){K(this,r).updateGain()}stopQueuedNodes(){K(this,n).stop()}stopIterator(){return Y(this,null,function*(){yield K(this,s).stopIterator()})}handleNoAudioTrack(){K(this,t)||(this.audioSink=null,this.ensureAudioContext())}cancelPending(){Q(this,i)._++;try{this.pause()}finally{$(this,l,null),this.input=null,this.audioSink=null}}load(e,r){return Y(this,null,function*(){if(K(this,t))return;this.cancelPending();const n=K(this,i);this.playbackTimeAtStart=0,this.audioContextStartTime=0,this.latestScheduledEndTime=0;const s=Promise.resolve().then(()=>G(this,u,d).call(this,e,n,r));$(this,l,s);try{yield s}finally{K(this,l)===s&&$(this,l,null)}})}runIterator(e){return Y(this,null,function*(){K(this,t)||(yield K(this,s).run(e))})}play(){return Y(this,null,function*(){if(K(this,t))return;if(K(this,o))return K(this,o);if(!this.paused)return;const e=new Zl;$(this,a,e);const r=K(this,i),n=G(this,u,f).call(this,e,r);$(this,o,n);try{yield n}finally{K(this,a)===e&&($(this,a,null),$(this,o,null))}})}pause(){var e;this.paused||(this.playbackTimeAtStart=this.currentTime),this.paused=!0,this.asyncId++,null==(e=K(this,a))||e.cancel(),$(this,a,null),$(this,o,null),K(this,s).cancel(),this.stopQueuedNodes()}seek(e){return Y(this,null,function*(){var i,r;if(K(this,t))return;const n=!this.paused;K(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=null!=(r=null==(i=this.audioContext)?void 0:i.currentTime)?r:0,this.latestScheduledEndTime=this.playbackTimeAtStart;const a=++this.asyncId;n&&G(this,u,h).call(this,a)})}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){var i,r;if(K(this,t)||e===this.playbackRate)return;const n=this.currentTime;K(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=n,this.audioContextStartTime=null!=(r=null==(i=this.audioContext)?void 0:i.currentTime)?r:0,this.playbackRate=e,this.latestScheduledEndTime=n;const a=++this.asyncId;this.paused||G(this,u,h).call(this,a)}destroy(){if(K(this,t))return;$(this,t,!0),Q(this,i)._++;const e=[];for(const t of[()=>this.pause(),()=>K(this,r).destroy()])try{t()}catch(n){e.push(n)}if(this.input=null,this.audioSink=null,$(this,l,null),e.length)throw e[0]}}t=new WeakMap,i=new WeakMap,r=new WeakMap,n=new WeakMap,s=new WeakMap,a=new WeakMap,o=new WeakMap,l=new WeakMap,c=new WeakMap,u=new WeakSet,d=function(e,r,n){return Y(this,arguments,function*({input:e,audioTrack:r,duration:n},s,a){const o=()=>!K(this,t)&&K(this,i)===s;if(o()){this.input=e,this.duration=n;try{const e=r&&null!==r.codec&&(yield r.canDecode());if(!o())return;if(e){if(this.ensureAudioContext(r.sampleRate),!o())return;this.audioSink=new Zo(r)}else this.handleNoAudioTrack();o()&&(null==a||a())}catch(l){if(o())throw l}}})},h=function(e){this.runIterator(e).catch(i=>{if(!K(this,t)&&e===this.asyncId){try{this.pause()}catch(r){console.warn("MediaBunny audio failure 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e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==a||s||(a=yield e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:null!=a?a:Number.NaN})}function fc(){let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}}class mc{constructor(e){this.host=e,this.wanted=!1,this.playing=null,this.seeking=null}operation(){return V(H({},fc()),{source:this.host.loadSeq,complete:fc()})}current(e,t){return!this.host.destroyed&&e.source===this.host.loadSeq&&this[t]===e}cancelPlay(){const e=this.playing;this.playing=null,null==e||e.resolve()}invalidate(){this.cancelPlay(),this.wanted=!1;const e=this.seeking;this.seeking=null,null==e||e.complete.resolve(),null==e||e.resolve(),this.host.seeking=!1}ended(){this.wanted=!1,this.cancelPlay()}stop(){this.host.paused||(this.host.paused=!0,this.stopEngines(),this.host.events.emit("pause"))}stopEngines(){const e=[];for(const i of[()=>this.host.audio.pause(),()=>this.host.video.stop()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}pause(){this.wanted=!1,this.cancelPlay(),this.stop()}play(){if(this.host.destroyed)return Promise.resolve();if(this.wanted=!0,this.playing)return this.playing.promise;if(this.host.ended)return this.seek(0,!0);if(!this.host.paused&&!this.seeking)return Promise.resolve();const e=this.operation();return this.playing=e,this.runPlay(e).then(e.resolve,e.reject),e.promise}runPlay(e){return Y(this,null,function*(){const t=()=>this.current(e,"playing")&&this.wanted;try{for(;this.seeking;)if(yield this.seeking.complete.promise,!t())return;if(!t())return;if(this.host.paused=!1,yield this.host.audio.play(),!t())return void(this.wanted&&!this.host.destroyed||this.host.audio.pause());this.host.video.start(this.host.audio),ec(this.host.events,t,["play","playing"])}catch(i){if(!t())return;this.wanted=!1,this.host.paused=!0;try{this.stopEngines()}catch(r){console.warn("MediaBunny play cleanup error:",r)}throw i}finally{this.playing===e&&(this.playing=null)}})}seek(e,t){return this.position(t=>Y(this,null,function*(){const i=this.host.audio.seek(e),r=t()?this.host.video.seek(e):Promise.resolve();yield Promise.all([i,r])}),["seeked"],!1,t)}replace(e,t){return this.position(i=>Y(this,null,function*(){e.duration=yield hc(e),i()&&(this.host.media=e,yield Promise.all([this.host.video.load(e),this.host.audio.load(e)]),i()&&(yield Promise.all([this.host.video.seek(t),this.host.audio.seek(t)]),i()&&(this.host.readyState=4,this.host.networkState=1)))}),["loadedmetadata","durationchange","progress","loadeddata","canplay","canplaythrough","seeked"],!0)}position(e,t,i,r){if(this.host.destroyed)return Promise.resolve();this.wanted=null!=r?r:this.seeking?this.wanted:!this.host.paused,this.cancelPlay();const n=this.seeking,s=this.operation();return this.seeking=s,null==n||n.complete.resolve(),null==n||n.resolve(),this.runPosition(s,e,t,i).then(s.resolve,s.reject),s.promise}runPosition(e,t,i,r){return Y(this,null,function*(){const n=()=>this.current(e,"seeking");let s=!1;try{if(r&&this.stop(),!n())return;if(this.host.ended=!1,this.host.seeking=!0,ec(this.host.events,n,["seeking","waiting"]),!n())return;if(r||this.stop(),!n())return;if(yield t(n),!n())return;if(this.host.seeking=!1,e.complete.resolve(),ec(this.host.events,n,i),!n())return;this.seeking=null,s=this.wanted}catch(a){if(!n())return;throw this.host.seeking=!1,this.wanted=!1,this.cancelPlay(),this.host.reportError(a),a}finally{e.complete.resolve(),this.seeking===e&&(this.seeking=null)}s&&(yield this.play())})}}const pc=new WeakMap,gc=new WeakMap;function kc(e){const t=gc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.next()).then(e=>{var t;return null!=(t=e.value)?t:null});gc.set(e,i);const r=()=>{gc.get(e)===i&&gc.delete(e)};return i.then(r,r),i}function yc(e,t,i,r,n){const s=i?Math.max(.06,r/Math.max(1,n)):0;return i&&e<t-s?"skip":e<=t+s?"draw":"queue"}class bc{constructor(){this.image=null}cancel(){this.image&&(this.image.onload=null,this.image.onerror=null,this.image=null)}draw(e,t,i,r){this.cancel();const n=new Image;this.image=n,n.onload=()=>{if(this.image===n&&t()){this.cancel();try{i(n)}catch(e){r(e)}}},n.onerror=()=>{this.image===n&&this.cancel()},n.src=e}}class Tc{constructor(e,t,i,r){this.host=e,this.ready=t,this.draw=i,this.failure=r,this.stopped=!1,this.closed=!1,this.scheduled=null,this.fetching=null}current(e){return!this.closed&&!this.stopped&&this.host.asyncId===e}update(e){return Y(this,null,function*(){var t;const i=this.host.videoIterator;if(!i||!this.ready()||!this.current(e)||this.host.isFetching)return;const r={};this.fetching=r,this.host.isFetching=!0;const n=()=>this.current(e)&&this.host.videoIterator===i;try{for(;n();){const e=yield kc(i);if(!n()||!e)return;const r=null==(t=this.host.audioClock)?void 0:t.currentTime;if(void 0===r)return;const s=yc(e.timestamp,r,this.host.dropLateFrames,this.host.avSyncTolerance,this.host.playbackRate);if("skip"!==s){if("draw"!==s)return void(this.host.nextFrame=e);this.draw(e)}}}catch(s){if(n())throw s}finally{this.fetching===r&&(this.fetching=null,this.host.isFetching=!1)}})}request(e){this.update(e).catch(t=>{this.current(e)&&(this.stop(),this.report(t))})}report(e){try{this.failure(e)}catch(t){console.warn("MediaBunny video error listener:",t)}}cancelFrame(){null!==this.scheduled&&(cancelAnimationFrame(this.scheduled),this.scheduled=null)}schedule(e){if(!this.current(e))return;this.cancelFrame();const t=requestAnimationFrame(()=>{if(this.scheduled===t&&this.current(e)){this.scheduled=null;try{this.render()}catch(i){this.stop(),this.report(i)}}});this.scheduled=t,this.host.rafId=t}render(){const e=this.host.asyncId,t=()=>this.current(e);if(!t()||!this.host.audioClock)return;const i=this.host.audioClock.currentTime,r=Date.now();if(r-this.host.lastTimeUpdate>=this.host.timeupdateInterval){if(this.host.events.emit("timeupdate"),!t())return;this.host.lastTimeUpdate=r}if(this.ready()){if(Number.isFinite(this.host.duration)&&i>=this.host.duration){this.stop(),this.host.stalled=!1;const e=this.host.asyncId;return void ec(this.host.events,()=>!this.closed&&this.host.asyncId===e,["ended","pause","canplay"])}if(this.host.nextFrame&&this.host.nextFrame.timestamp<=i){if(this.draw(this.host.nextFrame),this.host.nextFrame=null,this.request(e),this.host.stalled){if(ec(this.host.events,t,["canplay","playing"]),!t())return;this.host.stalled=!1}}else this.host.nextFrame||(this.request(e),Number.isFinite(this.host.duration)&&i<this.host.duration&&!this.host.stalled&&(this.host.stalled=!0,this.host.events.emit("waiting")));this.schedule(e)}else this.schedule(e)}start(e){this.closed||(this.stop(),this.stopped=!1,this.host.audioClock=e,this.host.stalled=!1,this.host.nextFrame||this.request(this.host.asyncId),this.schedule(this.host.asyncId))}stop(){this.stopped=!0,this.host.asyncId++,this.cancelFrame(),this.fetching=null,this.host.isFetching=!1}destroy(){this.closed||(this.stop(),this.closed=!0)}}class vc{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:n=.12,dropLateFrames:s=!1,poster:a="",preflightRange:o=!1,onError:l}){X(this,P),X(this,m,0),X(this,p,0),X(this,g,null),X(this,k,null),X(this,y,null),X(this,b,!1),X(this,T,!1),X(this,v,new bc),X(this,w),X(this,S),this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=n,this.dropLateFrames=s,this.poster=a,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1,$(this,S,l),$(this,w,new Tc(this,()=>!K(this,T),e=>G(this,P,E).call(this,e,!0),e=>G(this,P,C).call(this,e)))}preflight(e,t,i){return Y(this,null,function*(){return function(e,t,i,r,n=()=>!0){return Y(this,null,function*(){if((null==r?void 0:r.aborted)||!n())return!1;if(!t||"string"!==typeof e||cc(e))return!0;try{const t=yield fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if((null==r?void 0:r.aborted)||!n())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!((null==r?void 0:r.aborted)||!n())&&(console.warn("Preflight check failed:",s),!0)}})}(e,this.preflightRange,this.events,t,i)})}drawPoster(){if(K(this,b)||!this.poster||this.posterDrawn)return;const e=K(this,m);K(this,v).draw(this.poster,()=>G(this,P,I).call(this,e),e=>{this.clear(),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,G(this,P,x).call(this).drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e=>G(this,P,C).call(this,e))}stopIterator(){return Y(this,null,function*(){const e=this.videoIterator;this.videoIterator=null,this.nextFrame=null,yield function(e){if(!e)return Promise.resolve();const t=pc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.return()).then(()=>{});return pc.set(e,i),i}(e)})}clear(){G(this,P,x).call(this).clearRect(0,0,this.canvas.width,this.canvas.height)}cancelPending(){Q(this,m)._++,Q(this,p)._++,this.stop(),G(this,P,B).call(this),K(this,v).cancel(),$(this,T,!1),$(this,g,null),$(this,k,null),$(this,y,null),this.videoSink=null,this.input=null}load(e,t){return Y(this,null,function*(){if(K(this,b))return;this.cancelPending();const i=K(this,m),r=K(this,p);$(this,T,!0);const n=Promise.resolve().then(()=>G(this,P,_).call(this,e,i,r,t));$(this,g,n);try{yield n}finally{K(this,g)===n&&$(this,g,null)}})}handleNoVideoTrack(){K(this,b)||(this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster())}resetIterator(e){return Y(this,null,function*(){if(K(this,b))return;const t=K(this,m),i=++Q(this,p)._,r=K(this,g);this.stop(),K(this,v).cancel(),$(this,T,!0);try{r&&(yield r),yield G(this,P,R).call(this,e,t,i)}catch(n){if(G(this,P,I).call(this,t)&&K(this,p)===i)throw G(this,P,B).call(this),n}finally{G(this,P,I).call(this,t)&&K(this,p)===i&&$(this,T,!1)}})}updateNextFrame(e){return Y(this,null,function*(){yield K(this,w).update(e)})}render(){K(this,w).render()}start(e){K(this,w).start(e)}stop(){K(this,w).stop()}seek(e){return Y(this,null,function*(){yield this.resetIterator(e)})}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){K(this,b)||($(this,b,!0),Q(this,m)._++,K(this,w).destroy(),K(this,v).cancel(),G(this,P,B).call(this),this.posterDrawn=!1,$(this,k,null),$(this,y,null),this.videoSink=null,this.input=null,this.audioClock=null)}}m=new WeakMap,p=new WeakMap,g=new WeakMap,k=new WeakMap,y=new WeakMap,b=new WeakMap,T=new WeakMap,v=new WeakMap,w=new WeakMap,S=new WeakMap,P=new WeakSet,I=function(e){return!K(this,b)&&K(this,m)===e},x=function(){if(!this.ctx)throw new Error("Canvas 2D context is unavailable.");return this.ctx},C=function(e){K(this,b)||(G(this,P,B).call(this),K(this,S)?K(this,S).call(this,e):this.events.emit("error",e))},B=function(){this.stopIterator().catch(e=>console.warn("MediaBunny iterator cleanup error:",e))},E=function(e,t){K(this,v).cancel(),t&&this.clear(),G(this,P,x).call(this).drawImage(e.canvas,0,0)},_=function(e,t,i,r){return Y(this,null,function*(){if(G(this,P,I).call(this,t))try{this.clear(),this.posterDrawn=!1;const{input:n,videoTrack:s,duration:a}=e;if(this.input=n,this.duration=a,!s)return this.handleNoVideoTrack(),void(null==r||r());const o=null!==s.codec&&(yield s.canDecode());if(!G(this,P,I).call(this,t))return;if(!o)return this.handleNoVideoTrack(),void(null==r||r());const l=yield s.canBeTransparent();if(!G(this,P,I).call(this,t))return;$(this,k,()=>new Go(s,{poolSize:2,fit:"contain",alpha:l})),this.videoSink=K(this,k).call(this),this.width=s.displayWidth,this.height=s.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,null==r||r(),G(this,P,I).call(this,t)&&(yield G(this,P,R).call(this,0,t,i))}catch(n){if(G(this,P,I).call(this,t))throw G(this,P,B).call(this),n}finally{G(this,P,I).call(this,t)&&K(this,p)===i&&$(this,T,!1)}})},R=function(e,t,i){return Y(this,null,function*(){if(!G(this,P,I).call(this,t)||K(this,p)!==i)return;G(this,P,B).call(this),K(this,k)&&this.videoSink===K(this,y)&&(this.videoSink=K(this,k).call(this));const r=this.videoSink;if(!r||!G(this,P,I).call(this,t))return;$(this,y,r);const n=r.canvases(e);this.videoIterator=n;const s=()=>G(this,P,I).call(this,t)&&K(this,p)===i&&this.videoIterator===n,a=yield kc(n);if(!s())return;const o=yield kc(n);s()&&(this.nextFrame=o,a?G(this,P,E).call(this,a,!1):this.drawPoster())})};class wc{constructor({canvas:e,ctx:t,events:i,option:r={}}){var n,s,a,o,l;X(this,F),this.events=i,this.option=r,this.audio=new ic(i,e=>{try{this.pause()}catch(t){console.warn("MediaBunny audio coordinator cleanup:",t)}this.reportError(e)}),this.video=new vc({canvas:e,ctx:t,events:i,timeupdateInterval:null!=(n=r.timeupdateInterval)?n:250,avSyncTolerance:null!=(s=r.avSyncTolerance)?s:.12,dropLateFrames:null!=(a=r.dropLateFrames)&&a,poster:null!=(o=r.poster)?o:"",preflightRange:null!=(l=r.preflightRange)&&l,onError:e=>{try{this.pause()}catch(t){console.warn("MediaBunny video failure cleanup:",t)}this.reportError(e)}}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,$(this,F,new mc(this)),i.addEventListener("ended",()=>{this.destroyed||(this.ended=!0,this.paused=!0,K(this,F).ended(),this.audio.pause())})}load(e){return Y(this,null,function*(){var t,i;if(this.destroyed)return;const r=++this.loadSeq;if(K(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),null==(t=this.loadSession)||t.cancel(),r!==this.loadSeq||this.destroyed)return;if(this.pause(),r!==this.loadSeq||this.destroyed)return;this.disposeInput();const n=new dc;this.loadSession=n,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,n.defer(()=>this.events.emit("waiting")),n.defer(()=>this.events.emit("loadstart"));const s=Number.isFinite(this.option.loadTimeout)&&null!=(i=this.option.loadTimeout)?i:0;try{yield n.wait(this.performLoad(e,r,n),s)}catch(a){if(r!==this.loadSeq)return;const e=++this.loadSeq;if(K(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),n.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.reportError(a)}})}performLoad(e,t){return Y(this,arguments,function*(e,t,i=this.loadSession){const r=()=>!this.destroyed&&t===this.loadSeq;if(!i||!(yield this.video.preflight(e,i.signal,r))||!r())return;const n=uc(e);if(!n)return this.video.handleNoVideoTrack(),void(r()&&this.audio.handleNoAudioTrack());i.own(n);const s=yield function(e,t){return Y(this,null,function*(){const i=yield e.getPrimaryVideoTrack(),r=i?yield i.getPrimaryPairableAudioTrack():yield e.getPrimaryAudioTrack(),n=yield hc({input:e,videoTrack:i,audioTrack:r}),s=i||r,a=cc(t);return{input:e,videoTrack:i,audioTrack:r,duration:n,isLive:!Number.isFinite(n)&&Boolean(s&&(yield s.isLive())),isHls:a,videoMode:a?"auto":"manual",audioMode:a?"auto":"manual"}})}(n,e);if(!r())return;if(!s.videoTrack&&!s.audioTrack)throw this.video.handleNoVideoTrack(),this.video.duration=Number.NaN,this.audio.duration=Number.NaN,new Error("Input has no audio or video tracks.");this.input=n,this.media=s;const a=function(e,t){let i=!1,r=!1,n=!1;function 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B=r.pos;if(r.readBits(1)){if(r.readBits(1)){const e=r.readBits(8);if(255===e)S={num:r.readBits(16),den:r.readBits(16)};else{const t=Yt[e];t&&(S=t)}}r.readBits(1)&&r.skipBits(1);if(r.readBits(1)){r.skipBits(3),w=r.readBits(1);r.readBits(1)&&(b=r.readBits(8),T=r.readBits(8),v=r.readBits(8))}r.readBits(1)&&(ue(r),ue(r));r.readBits(1)&&(r.skipBits(32),r.skipBits(32),r.skipBits(1));const e=r.readBits(1);e&&Zt(r);const t=r.readBits(1);t&&Zt(r),(e||t)&&r.skipBits(1),r.skipBits(1),x=r.pos,C=r.readBits(1),C&&(r.skipBits(1),ue(r),ue(r),ue(r),ue(r),P=ue(r),I=ue(r))}if(null===P){oe(null===I);if(44!==n&&86!==n&&100!==n&&110!==n&&122!==n&&244!==n||!(16&s)){const e=h+1,i=(2-y)*(f+1),r=null!=(t=Gi.find(e=>e.level>=a))?t:ce(Gi),n=Math.min(Math.floor(r.maxDpbMbs/(e*i)),16);P=n,I=n}else P=0,I=0}return oe(null!==I),{emulationUnpreventedBytes:i,profileIdc:n,constraintFlags:s,levelIdc:a,frameMbsOnlyFlag:y,chromaFormatIdc:o,bitDepthLumaMinus8:l,bitDepthChromaMinus8:c,codedWidth:m,codedHeight:p,displayWidth:g,displayHeight:k,pixelAspectRatio:S,colourPrimaries:b,matrixCoefficients:v,transferCharacteristics:T,fullRangeFlag:w,numReorderFrames:P,maxDecFrameBuffering:I,vuiParametersFlagBitOffset:B,bitstreamRestrictionFlagBitOffset:x,bitstreamRestrictionFlag:C}}catch(i){return Pt._error("Error parsing AVC SPS:",i),null}},Zt=e=>{const t=ue(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)ue(e),ue(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},ei=e=>{oe(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new Bt(e.emulationUnpreventedBytes),r=new Bt(t);null===e.bitstreamRestrictionFlag?(r.copyBits(e.vuiParametersFlagBitOffset,i),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(oe(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),de(r,2),de(r,1),de(r,16),de(r,16),de(r,e.numReorderFrames),de(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const n=r.pos/8;return oe(Number.isInteger(n)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,n))},ti=(e,t)=>{if(t.description){const i=3&fe(t.description)[21];return qt(e,i+1)}return Ut(e)},ii=e=>e>>1&63,ri=e=>{try{const t=new Bt(Vt(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:n,general_tier_flag:s,general_profile_idc:a,general_profile_compatibility_flags:o,general_constraint_indicator_flags:l,general_level_idc:c}=si(t,i);ue(t);const u=ue(t);let d=0;3===u&&(d=t.readBits(1));const h=ue(t),f=ue(t);let m=h,p=f;if(t.readBits(1)){const e=ue(t),i=ue(t),r=ue(t),n=ue(t);let s=1,a=1;const o=0===d?u:0;1===o?(s=2,a=2):2===o&&(s=2,a=1),m-=(e+i)*s,p-=(r+n)*a}const g=ue(t),k=ue(t);ue(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)ue(t),b=ue(t),ue(t);ue(t),ue(t),ue(t),ue(t),ue(t),ue(t),t.readBits(1)&&t.readBits(1)&&ai(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),ue(t),ue(t),t.skipBits(1));const T=ue(t);if(oi(t,T),t.readBits(1)){const e=ue(t);for(let i=0;i<e;i++)ue(t),t.skipBits(1)}t.skipBits(1),t.skipBits(1);let v=2,w=2,S=2,P=0,I=0,x={num:1,den:1};if(t.readBits(1)){const e=ci(t,i);x=e.pixelAspectRatio,v=e.colourPrimaries,w=e.transferCharacteristics,S=e.matrixCoefficients,P=e.fullRangeFlag,I=e.minSpatialSegmentationIdc}return{displayWidth:m,displayHeight:p,pixelAspectRatio:x,colourPrimaries:v,transferCharacteristics:w,matrixCoefficients:S,fullRangeFlag:P,maxDecFrameBuffering:b+1,spsMaxSubLayersMinus1:i,spsTemporalIdNestingFlag:r,generalProfileSpace:n,generalTierFlag:s,generalProfileIdc:a,generalProfileCompatibilityFlags:o,generalConstraintIndicatorFlags:l,generalLevelIdc:c,chromaFormatIdc:u,bitDepthLumaMinus8:g,bitDepthChromaMinus8:k,minSpatialSegmentationIdc:I}}catch(t){return Pt._error("Error parsing HEVC SPS:",t),null}},ni=e=>{try{const t=[],i=[],r=[],n=[];for(const l of Ut(e)){const s=e.subarray(l.offset,l.offset+l.length),a=ii(s[0]);a===Lt.VPS_NUT?t.push(s):a===Lt.SPS_NUT?i.push(s):a===Lt.PPS_NUT?r.push(s):a!==Lt.PREFIX_SEI_NUT&&a!==Lt.SUFFIX_SEI_NUT||n.push(s)}if(0===i.length||0===r.length)return null;const s=ri(i[0]);if(!s)return null;let a=0;if(r.length>0){const e=r[0],t=new Bt(Vt(e));t.skipBits(16),ue(t),ue(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),ue(t),ue(t),he(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&ue(t),he(t),he(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),n=t.readBits(1);a=i||n?i&&!n?2:!i&&n?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:Lt.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Lt.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Lt.PPS_NUT,nalUnits:r}]:[],...n.length?[{arrayCompleteness:1,nalUnitType:ii(n[0][0]),nalUnits:n}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:a,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return Pt._error("Error building HEVC Decoder Configuration Record:",t),null}},si=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),n=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const a=new Uint8Array(6);for(let u=0;u<6;u++)a[u]=e.readBits(8);const o=e.readBits(8),l=[],c=[];for(let u=0;u<t;u++)l.push(e.readBits(1)),c.push(e.readBits(1));if(t>0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u<t;u++)l[u]&&e.skipBits(88),c[u]&&e.skipBits(8);return{general_profile_space:i,general_tier_flag:r,general_profile_idc:n,general_profile_compatibility_flags:s,general_constraint_indicator_flags:a,general_level_idc:o}},ai=e=>{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&he(e);for(let t=0;t<i;t++)he(e)}else ue(e)}},oi=(e,t)=>{const i=[];for(let r=0;r<t;r++)i[r]=li(e,r,t,i)},li=(e,t,i,r)=>{var n;let s=0,a=0,o=0;if(0!==t&&(a=e.readBits(1)),a){if(t===i){o=t-(ue(e)+1)}else o=t-1;e.readBits(1),ue(e);const a=null!=(n=r[o])?n:0;for(let 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r=!1,n=!1,s=!1;r=1===e.readBits(1),n=1===e.readBits(1),(r||n)&&(s=1===e.readBits(1),s&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),s&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5));for(let a=0;a<=i;a++){let t=!0;1===e.readBits(1)||(t=1===e.readBits(1));let i=!1;t?ue(e):i=1===e.readBits(1);let a=1;if(!i){a=ue(e)+1}r&&di(e,a,s),n&&di(e,a,s)}},di=(e,t,i)=>{for(let r=0;r<t;r++)ue(e),ue(e),i&&(ue(e),ue(e)),e.readBits(1)};var hi,fi;(fi=hi||(hi={}))[fi.audAllowed=0]="audAllowed",fi[fi.beforeFirstVcl=1]="beforeFirstVcl",fi[fi.afterFirstVcl=2]="afterFirstVcl",fi[fi.eoBitstreamAllowed=3]="eoBitstreamAllowed",fi[fi.noMoreDataAllowed=4]="noMoreDataAllowed";const mi=(e,t)=>{const i=new Set;let r=hi.audAllowed;for(const s of ti(e,t)){if(r===hi.noMoreDataAllowed){i.add(s.offset);continue}const t=ii(e[s.offset]);if(r===hi.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let n=!1;35===t?r>hi.audAllowed?n=!0:r=hi.beforeFirstVcl:t<=31?r>hi.afterFirstVcl?n=!0:r=hi.afterFirstVcl:36===t?r!==hi.afterFirstVcl?n=!0:r=hi.eoBitstreamAllowed:37===t?r<hi.afterFirstVcl?n=!0:r=hi.noMoreDataAllowed:32===t||33===t||34===t||39===t||t>=41&&t<=44||t>=48&&t<=55?r>hi.beforeFirstVcl?n=!0:r=hi.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r<hi.afterFirstVcl&&(n=!0),n&&i.add(s.offset)}if(0===i.size)return null;const n=[];for(const s of ti(e,t))i.has(s.offset)||n.push(e.subarray(s.offset,s.offset+s.length));return((e,t)=>{if(t.description){const i=3&fe(t.description)[21];return Xt(e,i+1)}return Kt(e)})(n,t)},pi={1:{colourPrimaries:5,transferCharacteristics:6,matrixCoefficients:5},2:{colourPrimaries:1,transferCharacteristics:1,matrixCoefficients:1},3:{colourPrimaries:6,transferCharacteristics:6,matrixCoefficients:6},4:{colourPrimaries:7,transferCharacteristics:7,matrixCoefficients:7},5:{colourPrimaries:9,transferCharacteristics:14,matrixCoefficients:9},7:{colourPrimaries:1,transferCharacteristics:13,matrixCoefficients:0}},gi=e=>{var t,i,r;const n=new Bt(e);if(2!==n.readBits(2))return null;const s=n.readBits(1),a=(n.readBits(1)<<1)+s;3===a&&n.skipBits(1);if(1===n.readBits(1))return null;if(0!==n.readBits(1))return null;n.skipBits(2);if(4817730!==n.readBits(24))return null;let o=8;if(a>=2){o=n.readBits(1)?12:10}const l=n.readBits(3);let c=0,u=0;if(7!==l){if(u=n.readBits(1),1===a||3===a){const e=n.readBits(1),t=n.readBits(1);c=e||t?e&&!t?2:1:3,n.skipBits(1)}else c=1}else c=3,u=1;const d=(n.readBits(16)+1)*(n.readBits(16)+1);let h=ce(Qi).level;for(const m of Qi)if(d<=m.maxPictureSize){h=m.level;break}const f=pi[l];return{profile:a,level:h,bitDepth:o,chromaSubsampling:c,videoFullRangeFlag:u,colourPrimaries:null!=(t=null==f?void 0:f.colourPrimaries)?t:2,transferCharacteristics:null!=(i=null==f?void 0:f.transferCharacteristics)?i:2,matrixCoefficients:null!=(r=null==f?void 0:f.matrixCoefficients)?r:2}},ki=function*(e){const t=new Bt(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*q(2,7*i),!(128&r))break;if(7===i&&128&r)return null}return e>q(2,32)-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const r=t.readBits(4),n=t.readBits(1),s=t.readBits(1);let a;if(t.skipBits(1),n&&t.skipBits(8),s){const e=i();if(null===e)return;a=e}else a=Math.floor(t.getBitsLeft()/8);oe(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+a)},t.skipBits(8*a)}},yi=e=>{for(const{type:t,data:i}of ki(e)){if(1!==t)continue;const e=new Bt(i),r=e.readBits(3);e.readBits(1);const n=e.readBits(1);let s=0,a=0,o=0;if(n)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let t=0;for(;t<32&&!e.readBits(1);)t++;t<32&&e.skipBits(t)}t=e.readBits(1),t&&(o=e.readBits(5),e.skipBits(32),e.skipBits(5),e.skipBits(5))}const i=e.readBits(1),r=e.readBits(5);for(let n=0;n<=r;n++){e.skipBits(12);const r=e.readBits(5);if(0===n&&(s=r),r>7){const t=e.readBits(1);0===n&&(a=t)}if(t){if(e.readBits(1)){const t=o+1;e.skipBits(t),e.skipBits(t),e.skipBits(1)}}if(i){e.readBits(1)&&e.skipBits(4)}}}const l=e.readBits(4),c=e.readBits(4),u=l+1;e.skipBits(u);const d=c+1;e.skipBits(d);let h=0;if(h=n?0:e.readBits(1),h&&(e.skipBits(4),e.skipBits(3)),e.skipBits(1),e.skipBits(1),e.skipBits(1),!n){e.skipBits(1),e.skipBits(1),e.skipBits(1),e.skipBits(1);const t=e.readBits(1);t&&(e.skipBits(1),e.skipBits(1));let i=0;if(i=e.readBits(1)?2:e.readBits(1),i>0){e.readBits(1)||e.skipBits(1)}t&&e.skipBits(3)}e.skipBits(1),e.skipBits(1),e.skipBits(1);const f=e.readBits(1);let m=8;if(2===r&&f){m=e.readBits(1)?12:10}else r<=2&&(m=f?10:8);let p=0;1!==r&&(p=e.readBits(1));let g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,T=1,v=1,w=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,T=0,v=0):(b=e.readBits(1),0===r?(T=1,v=1):1===r?(T=0,v=0):12===m?(T=e.readBits(1),v=T?e.readBits(1):0):(T=1,v=0),T&&v&&(w=e.readBits(2))),{profile:r,level:s,tier:a,bitDepth:m,monochrome:p,chromaSubsamplingX:T,chromaSubsamplingY:v,chromaSamplePosition:w,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},bi=e=>{if(e.length<36)return null;const t=me(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},Ti=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],vi=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in Setup header.");if("vorbis"!==String.fromCharCode(...e.slice(1,7)))throw new Error("Invalid packet signature in Setup header.");const t=e.length,i=new Uint8Array(t);for(let u=0;u<t;u++)i[u]=e[t-1-u];const r=new Bt(i);let n=0;for(;r.getBitsLeft()>97;)if(1===r.readBits(1)){n=r.pos;break}if(0===n)throw new Error("Invalid Setup header: framing bit not found.");let s=0,a=!1,o=0;for(;r.getBitsLeft()>=97;){const e=r.pos,t=r.readBits(8),i=r.readBits(16),n=r.readBits(16);if(t>63||0!==i||0!==n){r.pos=e;break}if(r.skipBits(1),s++,s>64)break;r.clone().readBits(6)+1===s&&(a=!0,o=s)}if(!a)throw new Error("Invalid Setup header: mode header not found.");if(o>63)throw new Error(`Unsupported mode count: ${o}.`);const l=o;r.pos=0,r.skipBits(n);const c=Array(l).fill(0);for(let u=l-1;u>=0;u--)r.skipBits(40),c[u]=r.readBits(1);return{modeBlockflags:c}},wi=(e,t,i)=>{switch(e){case"avc":for(const e of Wt(i,t)){const t=i[e.offset],r=Ht(t);if(r>=Nt.NON_IDR_SLICE&&r<=Nt.SLICE_DPC)return"delta";if(r===Nt.IDR)return"key";if(r===Nt.SEI&&!at()){const t=i.subarray(e.offset,e.offset+e.length),r=Vt(t);let n=1;do{let e=0;for(;;){const t=r[n++];if(void 0===t)break;if(e+=t,t<255)break}let t=0;for(;;){const e=r[n++];if(void 0===e)break;if(t+=e,e<255)break}if(e===6){const e=new Bt(r);e.pos=8*n;const t=ue(e),i=e.readBits(1);if(0===t&&1===i)return"key"}n+=t}while(n<r.length-1)}}return"delta";case"hevc":for(const e of ti(i,t)){const t=ii(i[e.offset]);if(t<Lt.BLA_W_LP)return"delta";if(t<=Lt.RSV_IRAP_VCL23)return"key"}return"delta";case"vp8":return 0===(1&i[0])?"key":"delta";case"vp9":{const e=new Bt(i);if(2!==e.readBits(2))return null;const t=e.readBits(1);3===(e.readBits(1)<<1)+t&&e.skipBits(1);if(e.readBits(1))return null;return 0===e.readBits(1)?"key":"delta"}case"av1":{let e=!1;for(const{type:t,data:r}of ki(i))if(1===t){const t=new Bt(r);t.skipBits(4),e=!!t.readBits(1)}else if(3===t||6===t||7===t){if(e)return"key";const t=new Bt(r);if(t.readBits(1))return null;return 0===t.readBits(2)?"key":"delta"}return null}case"prores":return"key";default:Oe(e),oe(!1)}};var Si,Pi;(Pi=Si||(Si={}))[Pi.STREAMINFO=0]="STREAMINFO",Pi[Pi.VORBIS_COMMENT=4]="VORBIS_COMMENT",Pi[Pi.PICTURE=6]="PICTURE";const Ii=(e,t)=>{var i,r;const n=me(e);let s=0;const a=n.getUint32(s,!0);s+=4;const o=pe.decode(e.subarray(s,s+a));s+=a,a>0&&(null!=t.raw||(t.raw={}),null!=(i=t.raw).vendor||(i.vendor=o));const l=n.getUint32(s,!0);s+=4;for(let c=0;c<l;c++){const i=n.getUint32(s,!0);s+=4;const a=pe.decode(e.subarray(s,s+i));s+=i;const o=a.indexOf("=");if(-1===o)continue;const l=a.slice(0,o).toUpperCase(),c=a.slice(o+1);switch(null!=t.raw||(t.raw={}),Array.isArray(t.raw[l])?t.raw[l]=[...t.raw[l],c]:"string"===typeof t.raw[l]?t.raw[l]=[t.raw[l],c]:null!=(r=t.raw)[l]||(r[l]=c),l){case"TITLE":null!=t.title||(t.title=c);break;case"DESCRIPTION":null!=t.description||(t.description=c);break;case"ARTIST":null!=t.artist||(t.artist=c);break;case"ALBUM":null!=t.album||(t.album=c);break;case"ALBUMARTIST":null!=t.albumArtist||(t.albumArtist=c);break;case"COMMENT":null!=t.comment||(t.comment=c);break;case"LYRICS":null!=t.lyrics||(t.lyrics=c);break;case"TRACKNUMBER":{const e=c.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=t.trackNumber||(t.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.tracksTotal||(t.tracksTotal=r))}break;case"TRACKTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.tracksTotal||(t.tracksTotal=e))}break;case"DISCNUMBER":{const e=c.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=t.discNumber||(t.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.discsTotal||(t.discsTotal=r))}break;case"DISCTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.discsTotal||(t.discsTotal=e))}break;case"DATE":{const e=new Date(c);Number.isNaN(e.getTime())||null!=t.date||(t.date=e)}break;case"GENRE":null!=t.genre||(t.genre=c);break;case"METADATA_BLOCK_PICTURE":{const e=ht(c),i=me(e),r=i.getUint32(0,!1),n=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+n)),a=i.getUint32(8+n,!1),o=pe.decode(e.subarray(12+n,12+n+a)),l=i.getUint32(n+a+28),u=e.subarray(n+a+32,n+a+32+l);null!=t.images||(t.images=[]),t.images.push({data:u,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},xi=[2,1,2,3,3,4,4,5],Ci=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new Bt(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),n=t.readBits(5);if(n>8)return null;const s=t.readBits(3),a=t.readBits(3);0!==(1&a)&&1!==a&&t.skipBits(2),0!==(4&a)&&t.skipBits(2),2===a&&t.skipBits(2);return{fscod:i,bsid:n,bsmod:s,acmod:a,lfeon:t.readBits(1),bitRateCode:Math.floor(r/2)}},Bi=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,576,384,418,576,448,486,672,448,488,672,512,556,768,512,558,768,640,696,960,640,698,960,768,834,1152,768,836,1152,896,974,1344,896,976,1344,1024,1114,1536,1024,1116,1536,1280,1392,1920,1280,1394,1920,1536,1670,2304,1536,1672,2304,1792,1950,2688,1792,1952,2688,2048,2228,3072,2048,2230,3072,2304,2506,3456,2304,2508,3456,2560,2786,3840,2560,2788,3840],Ei=[1,2,3,6],_i=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new Bt(e);t.skipBits(16);const i=t.readBits(2);if(t.skipBits(3),0!==i&&2!==i)return null;const r=t.readBits(11),n=t.readBits(2);let s,a=0;3===n?(a=t.readBits(2),s=3):s=t.readBits(2);const o=t.readBits(3),l=t.readBits(1),c=t.readBits(5);if(c<11||c>16)return null;const u=Ei[s];let d;d=n<3?Mt[n]/1e3:Dt[a]/1e3;return{dataRate:Math.round((r+1)*d/(16*u)),substreams:[{fscod:n,fscod2:a,bsid:c,bsmod:0,acmod:o,lfeon:l,numDepSub:0,chanLoc:0}]}},Ri=e=>{const t=e.substreams[0];return oe(t),t.fscod<3?Mt[t.fscod]:null!==t.fscod2&&t.fscod2<3?Dt[t.fscod2]:null},Fi=e=>{const t=e.substreams[0];oe(t);let i=xi[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let r=0;r<9;r++)t.chanLoc&1<<8-r&&(i+=e[r])}return i},Ai=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],Mi=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],Di=[16,16,20,20,0,24,24,0],Ni=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],Oi=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],Li=[32e3,44100,48e3,0],zi=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],Ui=[512,1024,2048,4096],qi=e=>{const t=Hi(e),i=me(e);let r=t?4*Math.ceil(t.frameSize/4):0,n=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=Vi(e.subarray(r));if(!t)break;null!=n||(n=t),r+=t.frameSize}if(t)return{frameSize:n?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==n};if(!(null==n?void 0:n.asset))return null;const{asset:s}=n;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},Wi=e=>{const t=qi(e);return(null==t?void 0:t.core)?t.hasExtensions?"dtsh":"dtsc":null},Hi=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new Bt(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const n=t.readBits(14)+1;if(n<96)return null;const s=t.readBits(6);if(s>=Ni.length)return null;const a=Ai[t.readBits(4)];if(0===a)return null;const o=Mi[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const l=t.readBits(2);if(3===l)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const c=Di[t.readBits(3)];if(0===c)return null;const u=0!==l;return{frameSize:n,sampleRate:a,numberOfChannels:Ni[s]+(u?1:0),sampleCount:32*r,channelLayout:Oi[s]|(u?8:0),amode:s,lfePresent:u,bitRate:o,pcmResolution:c}},Vi=e=>{if(e.length<10)return null;if(100!==e[0]||88!==e[1]||32!==e[2]||37!==e[3])return null;const t=new Bt(e);t.skipBits(32),t.skipBits(8);const i=t.readBits(2),r=t.readBits(1),n=8+4*r,s=16+4*r;t.skipBits(n);const a=t.readBits(s)+1,o={frameSize:a,asset:null};if(!t.readBits(1))return o;const l=Li[t.readBits(2)],c=512*(t.readBits(3)+1);t.readBits(1)&&t.skipBits(36);const u=t.readBits(3)+1,d=t.readBits(3)+1,h=[];for(let k=0;k<u;k++)h.push(t.readBits(i+1));for(const k of h)t.skipBits(8*Xe(k));if(t.readBits(1)){t.skipBits(2);const e=t.readBits(2)+1<<2,i=t.readBits(2)+1;t.skipBits(i*e)}for(let k=0;k<d;k++)t.skipBits(s);t.skipBits(9),t.skipBits(3),t.readBits(1)&&t.skipBits(4),t.readBits(1)&&t.skipBits(24),t.readBits(1)&&t.skipBits(8*(t.readBits(10)+1));const f=t.readBits(5)+1,m=zi[t.readBits(4)],p=t.readBits(8)+1;let g=0;if(t.readBits(1)&&(p>2&&t.skipBits(1),p>6&&t.skipBits(1),t.readBits(1))){const e=t.readBits(2)+1<<2;g=t.readBits(e)}return 0===l||t.getBitsLeft()<0?o:{frameSize:a,asset:{sampleRate:m,numberOfChannels:p,sampleCount:Math.round(c*m/l),channelLayout:g,pcmResolution:f}}},ji=e=>Xe(e)+Xe(44646&e),Ki=["avc","hevc","vp9","av1","vp8","prores"],Xi=["pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be","pcm-u8","pcm-s8","ulaw","alaw"],$i=["aac","opus","mp3","vorbis","flac","ac3","eac3","dts",...Xi],Gi=[{maxMacroblocks:99,maxBitrate:64e3,maxDpbMbs:396,level:10},{maxMacroblocks:396,maxBitrate:192e3,maxDpbMbs:900,level:11},{maxMacroblocks:396,maxBitrate:384e3,maxDpbMbs:2376,level:12},{maxMacroblocks:396,maxBitrate:768e3,maxDpbMbs:2376,level:13},{maxMacroblocks:396,maxBitrate:2e6,maxDpbMbs:2376,level:20},{maxMacroblocks:792,maxBitrate:4e6,maxDpbMbs:4752,level:21},{maxMacroblocks:1620,maxBitrate:4e6,maxDpbMbs:8100,level:22},{maxMacroblocks:1620,maxBitrate:1e7,maxDpbMbs:8100,level:30},{maxMacroblocks:3600,maxBitrate:14e6,maxDpbMbs:18e3,level:31},{maxMacroblocks:5120,maxBitrate:2e7,maxDpbMbs:20480,level:32},{maxMacroblocks:8192,maxBitrate:2e7,maxDpbMbs:32768,level:40},{maxMacroblocks:8192,maxBitrate:5e7,maxDpbMbs:32768,level:41},{maxMacroblocks:8704,maxBitrate:5e7,maxDpbMbs:34816,level:42},{maxMacroblocks:22080,maxBitrate:135e6,maxDpbMbs:110400,level:50},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:51},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:52},{maxMacroblocks:139264,maxBitrate:24e7,maxDpbMbs:696320,level:60},{maxMacroblocks:139264,maxBitrate:48e7,maxDpbMbs:696320,level:61},{maxMacroblocks:139264,maxBitrate:8e8,maxDpbMbs:696320,level:62}],Qi=[{maxPictureSize:36864,maxBitrate:2e5,level:10},{maxPictureSize:73728,maxBitrate:8e5,level:11},{maxPictureSize:122880,maxBitrate:18e5,level:20},{maxPictureSize:245760,maxBitrate:36e5,level:21},{maxPictureSize:552960,maxBitrate:72e5,level:30},{maxPictureSize:983040,maxBitrate:12e6,level:31},{maxPictureSize:2228224,maxBitrate:18e6,level:40},{maxPictureSize:2228224,maxBitrate:3e7,level:41},{maxPictureSize:8912896,maxBitrate:6e7,level:50},{maxPictureSize:8912896,maxBitrate:12e7,level:51},{maxPictureSize:8912896,maxBitrate:18e7,level:52},{maxPictureSize:35651584,maxBitrate:18e7,level:60},{maxPictureSize:35651584,maxBitrate:24e7,level:61},{maxPictureSize:35651584,maxBitrate:48e7,level:62}],Yi=".01.01.01.01.00",Ji=".0.110.01.01.01.0",Zi=["ap4x","ap4h","apch","apcn","apcs","apco"],er=["dtsc","dtsh","dtsl","dtse"],tr=e=>{const{codec:t,codecDescription:i,colorSpace:r,avcCodecInfo:n,hevcCodecInfo:s,vp9CodecInfo:a,av1CodecInfo:o,proresFormat:l}=e;if("avc"===t){if(oe(null!==e.avcType),n){const t=new Uint8Array([n.avcProfileIndication,n.profileCompatibility,n.avcLevelIndication]);return`avc${e.avcType}.${Be(t)}`}if(!i||i.byteLength<4)throw new TypeError("AVC decoder description is not provided or is not at least 4 bytes long.");return`avc${e.avcType}.${Be(i.subarray(1,4))}`}if("hevc"===t){let e,t,r,n,a,o;if(s)e=s.generalProfileSpace,t=s.generalProfileIdc,r=Ee(s.generalProfileCompatibilityFlags),n=s.generalTierFlag,a=s.generalLevelIdc,o=[...s.generalConstraintIndicatorFlags];else{if(!i||i.byteLength<23)throw new TypeError("HEVC decoder description is not provided or is not at least 23 bytes long.");const s=me(i),l=s.getUint8(1);e=l>>6&3,t=31&l,r=Ee(s.getUint32(2)),n=l>>5&1,a=s.getUint8(12),o=[];for(let e=0;e<6;e++)o.push(s.getUint8(6+e))}let l="hev1.";for(l+=["","A","B","C"][e]+t,l+=".",l+=r.toString(16).toUpperCase(),l+=".",l+=0===n?"L":"H",l+=a;o.length>0&&0===o[o.length-1];)o.pop();return o.length>0&&(l+=".",l+=o.map(e=>e.toString(16).toUpperCase()).join(".")),l}if("vp8"===t)return"vp8";if("vp9"===t){if(!a){const t=e.width*e.height;let i=ce(Qi).level;for(const e of Qi)if(t<=e.maxPictureSize){i=e.level;break}return`vp09.00.${i.toString().padStart(2,"0")}.08`}let t=`vp09.${a.profile.toString().padStart(2,"0")}.${a.level.toString().padStart(2,"0")}.${a.bitDepth.toString().padStart(2,"0")}.${a.chromaSubsampling.toString().padStart(2,"0")}`;return t+=`.${a.colourPrimaries.toString().padStart(2,"0")}.${a.transferCharacteristics.toString().padStart(2,"0")}.${a.matrixCoefficients.toString().padStart(2,"0")}.${a.videoFullRangeFlag.toString().padStart(2,"0")}`,t.endsWith(Yi)&&(t=t.slice(0,-15)),t}if("av1"===t){if(!o){const t=e.width*e.height;let i=ce(Qi).level;for(const e of Qi)if(t<=e.maxPictureSize){i=e.level;break}return`av01.0.${i.toString().padStart(2,"0")}M.08`}const t=o.profile,i=o.level.toString().padStart(2,"0"),n=o.tier?"H":"M",s=o.bitDepth.toString().padStart(2,"0"),a=o.monochrome?"1":"0",l=100*o.chromaSubsamplingX+10*o.chromaSubsamplingY+1*(o.chromaSubsamplingX&&o.chromaSubsamplingY?o.chromaSamplePosition:0),c=(null==r?void 0:r.primaries)?ke[r.primaries]:1,u=(null==r?void 0:r.transfer)?be[r.transfer]:1,d=(null==r?void 0:r.matrix)?ve[r.matrix]:1,h=(null==r?void 0:r.fullRange)?1:0;let f=`av01.${t}.${i}${n}.${s}`;return f+=`.${a}.${l.toString().padStart(3,"0")}`,f+=`.${c.toString().padStart(2,"0")}`,f+=`.${u.toString().padStart(2,"0")}`,f+=`.${d.toString().padStart(2,"0")}`,f+=`.${h}`,f.endsWith(Ji)&&(f=f.slice(0,-17)),f}if("prores"===t)return null!=l?l:"apch";throw null!==t&&Oe(t),new TypeError(`Unhandled codec '${t}'.`)},ir=e=>{var t,i,r,n,s,a;switch(e.codec){case"avc":{let r=null==(t=e.avcCodecInfo)?void 0:t.sequenceParameterSets[0];if(!r&&e.codecDescription&&(r=null==(i=Qt(e.codecDescription))?void 0:i.sequenceParameterSets[0]),r){const e=Jt(r);if(e)return{primaries:ye[e.colourPrimaries],transfer:Te[e.transferCharacteristics],matrix:we[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"hevc":{let t=null==(n=null==(r=e.hevcCodecInfo)?void 0:r.arrays.find(e=>e.nalUnitType===Lt.SPS_NUT))?void 0:n.nalUnits[0];if(!t&&e.codecDescription&&(t=null==(a=null==(s=(e=>{try{const t=me(e);let i=0;const r=t.getUint8(i++),n=t.getUint8(i++),s=n>>6&3,a=n>>5&1,o=31&n,l=t.getUint32(i,!1);i+=4;const c=e.subarray(i,i+6);i+=6;const u=t.getUint8(i++),d=(15&t.getUint8(i++))<<8|t.getUint8(i++),h=3&t.getUint8(i++),f=3&t.getUint8(i++),m=7&t.getUint8(i++),p=7&t.getUint8(i++),g=t.getUint16(i,!1);i+=2;const k=t.getUint8(i++),y=k>>6&3,b=k>>3&7,T=k>>2&1,v=3&k,w=t.getUint8(i++),S=[];for(let P=0;P<w;P++){const r=t.getUint8(i++),n=r>>7&1,s=63&r,a=t.getUint16(i,!1);i+=2;const o=[];for(let l=0;l<a;l++){const r=t.getUint16(i,!1);i+=2,o.push(e.subarray(i,i+r)),i+=r}S.push({arrayCompleteness:n,nalUnitType:s,nalUnits:o})}return{configurationVersion:r,generalProfileSpace:s,generalTierFlag:a,generalProfileIdc:o,generalProfileCompatibilityFlags:l,generalConstraintIndicatorFlags:c,generalLevelIdc:u,minSpatialSegmentationIdc:d,parallelismType:h,chromaFormatIdc:f,bitDepthLumaMinus8:m,bitDepthChromaMinus8:p,avgFrameRate:g,constantFrameRate:y,numTemporalLayers:b,temporalIdNested:T,lengthSizeMinusOne:v,arrays:S}}catch(t){return Pt._error("Error deserializing HEVC Decoder Configuration Record:",t),null}})(e.codecDescription))?void 0:s.arrays.find(e=>e.nalUnitType===Lt.SPS_NUT))?void 0:a.nalUnits[0]),t){const e=ri(t);if(e)return{primaries:ye[e.colourPrimaries],transfer:Te[e.transferCharacteristics],matrix:we[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"vp8":break;case"vp9":if(e.vp9CodecInfo)return{primaries:ye[e.vp9CodecInfo.colourPrimaries],transfer:Te[e.vp9CodecInfo.transferCharacteristics],matrix:we[e.vp9CodecInfo.matrixCoefficients],fullRange:!!e.vp9CodecInfo.videoFullRangeFlag};break;case"av1":if(e.av1CodecInfo)return{primaries:ye[e.av1CodecInfo.colourPrimaries],transfer:Te[e.av1CodecInfo.transferCharacteristics],matrix:we[e.av1CodecInfo.matrixCoefficients],fullRange:!!e.av1CodecInfo.videoFullRangeFlag};break;case"prores":if(e.proresCodecInfo)return{primaries:ye[e.proresCodecInfo.colourPrimaries],transfer:Te[e.proresCodecInfo.transferCharacteristics],matrix:we[e.proresCodecInfo.matrixCoefficients],fullRange:e.proresCodecInfo.fullRange}}return{primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0}},rr=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:n}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=Rt(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return null!=n?n:"dtsc";if(t&&Xi.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},nr=48e3,sr=/^pcm-([usf])(\d+)(be)?$/,ar=e=>{if(oe(Xi.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=sr.exec(e);let i;oe(t),i="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:i,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?q(2,7):0}},or=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":Zi.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":er.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":sr.test(e)?e:"webvtt"===e?"webvtt":null,lr=[44100,48e3,32e3],cr=[-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,32,40,48,56,64,80,96,112,128,160,192,224,256,320,-1,-1,32,48,56,64,80,96,112,128,160,192,224,256,320,384,-1,-1,32,64,96,128,160,192,224,256,288,320,352,384,416,448,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,32,48,56,64,80,96,112,128,144,160,176,192,224,256,-1],ur=1483304551,dr=1231971951,hr=(e,t)=>3===e?3===t?21:36:3===t?13:21,fr=(e,t)=>{const i=e>>>24,r=e>>>16&255,n=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==n&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let a=0,o=0;16&r?a=8&r?0:1:(a=1,o=1);const l=r>>3&3,c=r>>1&3,u=(n>>2&3)%3,d=s>>6&3,h=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=cr[16*a*4+16*c+(n>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=lr[u]>>a+o,b=((e,t,i,r,n)=>0===t?0:1===t?Math.floor(144*i/(r<<e))+n:2===t?Math.floor(144*i/r)+n:4*(Math.floor(12*i/r)+n))(a,c,k,y,n>>1&1);if(null!==t&&t<b)return{header:null,bytesAdvanced:1};let T;return T=3===l?3===c?384:1152:3===c?384:2===c?1152:576,{header:{totalSize:b,mpegVersionId:l,lowSamplingFrequency:a,layer:c,bitrate:k,frequencyIndex:u,sampleRate:y,channel:d,modeExtension:h,copyright:f,original:m,emphasis:p,audioSamplesInFrame:T},bytesAdvanced:1}},mr=e=>{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var pr,gr;(gr=pr||(pr={}))[gr.FrameCount=1]="FrameCount",gr[gr.FileSize=2]="FileSize",gr[gr.Toc=4]="Toc";const kr=e=>3===e?1:2;class yr{constructor(e){this.input=e}dispose(){}}const br=new Uint8Array(0);class Tr{constructor(e,t,i,r,n=-1,s,a){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=n,e===br&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(n))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==a&&("object"!==typeof a||!a))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==(null==a?void 0:a.alpha)&&!(a.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==(null==a?void 0:a.alphaByteLength)&&(!Number.isInteger(a.alphaByteLength)||a.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=null!=a?a:{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===br}get microsecondTimestamp(){return Math.trunc(Qe*this.timestamp)}get microsecondDuration(){return Math.trunc(Qe*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){var i;if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const r=new Uint8Array(e.byteLength);return e.copyTo(r),new Tr(r,e.type,e.timestamp/1e6,(null!=(i=e.duration)?i:0)/1e6,void 0,void 0,t)}clone(e){var t,i,r,n,s,a;if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==(null==e?void 0:e.data)&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==(null==e?void 0:e.type)&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==(null==e?void 0:e.timestamp)&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==(null==e?void 0:e.duration)&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sequenceNumber)&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sideData)&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new Tr(null!=(t=null==e?void 0:e.data)?t:this.data,null!=(i=null==e?void 0:e.type)?i:this.type,null!=(r=null==e?void 0:e.timestamp)?r:this.timestamp,null!=(n=null==e?void 0:e.duration)?n:this.duration,null!=(s=null==e?void 0:e.sequenceNumber)?s:this.sequenceNumber,this.byteLength,null!=(a=null==e?void 0:e.sideData)?a:this.sideData)}}const vr=e=>{const t=me(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const n=Be(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;t<r;t++)s.push(Be(e.subarray(i,i+16))),i+=16}}const a=t.getUint32(i);return i+=4,{systemId:n,keyIds:s,data:e.slice(i,i+a)}},wr=(e,t)=>e.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i<e.length;i++)if(e[i]!==t[i])return!1;return!0})(e.data,t.data),Sr=e=>{let t=Cl(e);const i=Nl(e,4);let r=8;1===t&&(t=Rl(e),r=16);const n=t-r;return n<0?null:{name:i,totalSize:t,headerSize:r,contentSize:n}},Pr=e=>El(e)/65536,Ir=e=>El(e)/1073741824,xr=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=vl(e);if(t|=127&i,0===(128&i))break}return t},Cr=e=>{let t=Sl(e);return e.skip(2),t=Math.min(t,e.remainingLength),pe.decode(Tl(e,t))},Br=e=>{const t=Sr(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=Cl(e);e.skip(4);const r=Tl(e,t.contentSize-8);switch(i){case 1:return pe.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new It(r,"image/jpeg");case 14:return new It(r,"image/png");case 27:return new It(r,"image/bmp");default:return r}},Er=16,_r=new Uint32Array(256),Rr=new Uint32Array(256),Fr=new Uint32Array(256),Ar=new Uint32Array(256),Mr=new Uint32Array(256),Dr=new Uint32Array(256),Nr=new Uint32Array(10);let Or=!1;class Lr{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Er/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Er),this.out=new Uint8Array(Er),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){oe(16===e.byteLength),oe(16===t.byteLength),Or||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,a=1;s<256;s++)i[s]=a,t[a]=s,a=a^a<<1^(128&a?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let n=r^r<<1^r<<2^r<<3^r<<4;n=n>>>8^255&n^99,e[s]=n}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);_r[s]=t<<24|t<<16|t<<8|t,Dr[s]=i<<24|i<<16|i<<8|i;const n=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);Rr[s]=n,Fr[s]=n>>>8|n<<24,Ar[s]=n>>>16|n<<16,Mr[s]=n>>>24|n<<8}let n=1;for(let s=0;s<10;s++)Nr[s]=n<<24,n=n<<1^(128&n?283:0);Or=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let n=4;n<44;n+=4){const e=this.roundkey[n-1];this.roundkey[n]=this.roundkey[n-4]^4278190080&_r[e>>>16&255]^16711680&_r[e>>>8&255]^65280&_r[e>>>0&255]^255&_r[e>>>24&255]^Nr[n/4-1],this.roundkey[n+1]=this.roundkey[n-3]^this.roundkey[n],this.roundkey[n+2]=this.roundkey[n-2]^this.roundkey[n+1],this.roundkey[n+3]=this.roundkey[n-1]^this.roundkey[n+2]}for(let n=0,s=40;n<s;n+=4,s-=4)for(let e=0;e<4;e++){const t=this.roundkey[n+e];this.roundkey[n+e]=this.roundkey[s+e],this.roundkey[s+e]=t}for(let n=4;n<40;n+=4)for(let e=0;e<4;e++){const t=this.roundkey[n+e];this.roundkey[n+e]=Rr[255&_r[t>>>24&255]]^Fr[255&_r[t>>>16&255]]^Ar[255&_r[t>>>8&255]]^Mr[255&_r[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const n=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),a=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let l,c,u,d;for(let g=1;g<10;g++){const n=4*g;l=Rr[e>>>24]^Fr[r>>>16&255]^Ar[i>>>8&255]^Mr[255&t]^this.roundkey[n],c=Rr[t>>>24]^Fr[e>>>16&255]^Ar[r>>>8&255]^Mr[255&i]^this.roundkey[n+1],u=Rr[i>>>24]^Fr[t>>>16&255]^Ar[e>>>8&255]^Mr[255&r]^this.roundkey[n+2],d=Rr[r>>>24]^Fr[i>>>16&255]^Ar[t>>>8&255]^Mr[255&e]^this.roundkey[n+3],e=l,t=c,i=u,r=d}const h=4278190080&Dr[e>>>24&255]^16711680&Dr[r>>>16&255]^65280&Dr[i>>>8&255]^255&Dr[t>>>0&255]^this.roundkey[40],f=4278190080&Dr[t>>>24&255]^16711680&Dr[e>>>16&255]^65280&Dr[r>>>8&255]^255&Dr[i>>>0&255]^this.roundkey[41],m=4278190080&Dr[i>>>24&255]^16711680&Dr[t>>>16&255]^65280&Dr[e>>>8&255]^255&Dr[r>>>0&255]^this.roundkey[42],p=4278190080&Dr[r>>>24&255]^16711680&Dr[i>>>16&255]^65280&Dr[t>>>8&255]^255&Dr[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,h^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=n,this.iv[1]=s,this.iv[2]=a,this.iv[3]=o}}class zr extends yr{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.tracks.map(e=>e.trackBacking)})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)}),hasAudio:this.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)}),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(ct(r)&&(r=yield r),!r)break;const n=e,s=Sr(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=Nl(r,4);this.isQuickTime="qt  "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(ct(e)&&(e=yield e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>n+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');yield this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=n+s.totalSize}if(!i&&this.input._initInput&&(yield this.copyMetadataFromInitInput(this.input._initInput)),t){oe(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);ct(e)&&(e=yield e),oe(e);const t=Cl(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(ct(e)&&(e=yield e),e){const t=Sr(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);ct(i)&&(i=yield i),i&&this.readContiguousBoxes(i)}}}}}))()}copyMetadataFromInitInput(e){return Y(this,null,function*(){const t=yield e._getDemuxer();if(t.constructor!==zr)throw new Error("Init input must match the input's format.");yield t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const e of t.tracks){const t={id:e.id,demuxer:this,trackBacking:null,disposition:e.disposition,timescale:e.timescale,durationInMediaTimescale:e.durationInMediaTimescale,durationInMovieTimescale:e.durationInMovieTimescale,rotation:e.rotation,internalCodecId:e.internalCodecId,name:e.name,languageCode:e.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:e.editListPreviousSegmentDurations,editListOffset:e.editListOffset,encryptionInfo:e.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:e.info};if(e.trackBacking)if(oe(t.info),"video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new qr(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new Wr(e),this.tracks.push(t)}}})}getSampleTableForTrack(e){var t,i;if(e.sampleTable)return e.sampleTable;const r={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=r,null===e.sampleTableByteOffset)return r;oe(this.moovSlice);const n=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(n),this.currentTrack=null;if("audio"===(null==(t=e.info)?void 0:t.type)&&e.info.codec&&Xi.includes(e.info.codec)&&0===r.sampleCompositionTimeOffsets.length){oe("audio"===(null==(i=e.info)?void 0:i.type));const t=ar(e.info.codec),n=[],s=[];for(let i=0;i<r.sampleToChunk.length;i++){const a=r.sampleToChunk[i],o=r.sampleToChunk[i+1],l=(o?o.startChunkIndex:r.chunkOffsets.length)-a.startChunkIndex;for(let i=0;i<l;i++){const o=a.startSampleIndex+i*a.samplesPerChunk,l=o+a.samplesPerChunk,c=Re(r.sampleTimingEntries,o,e=>e.startIndex),u=r.sampleTimingEntries[c],d=Re(r.sampleTimingEntries,l,e=>e.startIndex),h=r.sampleTimingEntries[d],f=u.startDecodeTimestamp+(o-u.startIndex)*u.delta,m=h.startDecodeTimestamp+(l-h.startIndex)*h.delta-f,p=ce(n);p&&p.delta===m?p.count++:n.push({startIndex:a.startChunkIndex+i,startDecodeTimestamp:f,count:1,delta:m});const g=a.samplesPerChunk*t.sampleSize*e.info.numberOfChannels;s.push(g)}a.startSampleIndex=a.startChunkIndex,a.samplesPerChunk=1}r.sampleTimingEntries=n,r.sampleSizes=s}if(r.sampleCompositionTimeOffsets.length>0){r.presentationTimestamps=[];for(const e of r.sampleTimingEntries)for(let t=0;t<e.count;t++)r.presentationTimestamps.push({presentationTimestamp:e.startDecodeTimestamp+t*e.delta,sampleIndex:e.startIndex+t});for(const e of r.sampleCompositionTimeOffsets)for(let t=0;t<e.count;t++){const i=e.startIndex+t,n=r.presentationTimestamps[i];n&&(n.presentationTimestamp+=e.offset)}r.presentationTimestamps.sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp),r.presentationTimestampIndexMap=Array(r.presentationTimestamps.length).fill(-1);for(let e=0;e<r.presentationTimestamps.length;e++)r.presentationTimestampIndexMap[r.presentationTimestamps[e].sampleIndex]=e}return r}readFragment(e){return Y(this,null,function*(){var t;if((null==(t=this.lastReadFragment)?void 0:t.moofOffset)===e)return this.lastReadFragment;let i=this.reader.requestSliceRange(e,8,16);ct(i)&&(i=yield i),oe(i);const r=Sr(i);oe("moof"===(null==r?void 0:r.name));let n=this.reader.requestSlice(e,r.totalSize);ct(n)&&(n=yield n),oe(n),this.traverseBox(n);const s=this.lastReadFragment;oe(s&&s.moofOffset===e);for(const[,e]of s.trackData){const t=e.track,{fragmentPositionCache:i}=t;if(!e.startTimestampIsFinal){const r=t.fragmentLookupTable.find(e=>e.moofOffset===s.moofOffset);if(r)Xr(e,r.timestamp);else{const t=Re(i,s.moofOffset-1,e=>e.moofOffset);if(-1!==t){const r=i[t];Xr(e,r.endTimestamp)}}e.startTimestampIsFinal=!0}const r=Re(i,e.startTimestamp,e=>e.startTimestamp);if(-1!==r&&i[r].moofOffset===s.moofOffset||i.splice(r+1,0,{moofOffset:s.moofOffset,startTimestamp:e.startTimestamp,endTimestamp:e.endTimestamp}),e.encryptionAuxInfo&&t.encryptionInfo){const i=yield Yr(this.reader,t.encryptionInfo,e.encryptionAuxInfo);for(let t=0;t<Math.min(e.samples.length,i.length);t++){const r=i[t];e.samples[t].encryption=r}}}return s})}readContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){if(!this.traverseBox(e))break}}*iterateContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){const t=e.filePos,i=Sr(e);if(!i)break;yield{boxInfo:i,slice:e},e.filePos=t+i.totalSize}}traverseBox(e){var t,i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F,A,M,D,N,O,L,z,U,q,W,j,K,X,$,G,Q,Y,J,Z,ee,te,ie;const re=e.filePos,ne=Sr(e);if(!ne)return!1;const se=e.filePos,ae=re+ne.totalSize;switch(ne.name){case"mdia":case"minf":case"dinf":case"mfra":case"edts":case"sinf":case"schi":case"wave":this.readContiguousBoxes(e.slice(se,ne.contentSize));break;case"mvhd":{const t=vl(e);e.skip(3),1===t?(e.skip(16),this.movieTimescale=Cl(e),this.movieDurationInTimescale=Rl(e)):(e.skip(8),this.movieTimescale=Cl(e),this.movieDurationInTimescale=Cl(e))}break;case"trak":{const t={id:-1,demuxer:this,trackBacking:null,disposition:V(H({},Ct),{primary:!1}),info:null,timescale:-1,durationInMovieTimescale:-1,durationInMediaTimescale:-1,rotation:0,internalCodecId:null,name:null,languageCode:We,sampleTableByteOffset:-1,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:0,editListOffset:0,encryptionInfo:null,encryptionAuxInfo:null,frmaCodecString:null};if(this.currentTrack=t,this.readContiguousBoxes(e.slice(se,ne.contentSize)),-1!==t.id&&-1!==t.timescale&&null!==t.info)if("video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new qr(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new Wr(e),this.tracks.push(t)}this.currentTrack=null}break;case"tkhd":{const t=this.currentTrack;if(!t)break;const i=vl(e),r=!!(1&Pl(e));if(t.disposition.default=r,0===i)e.skip(8),t.id=Cl(e),e.skip(4),t.durationInMovieTimescale=Cl(e);else{if(1!==i)throw new Error(`Incorrect track header version ${i}.`);e.skip(16),t.id=Cl(e),e.skip(4),t.durationInMovieTimescale=Rl(e)}e.skip(16);const n=[Pr(e),Pr(e),Ir(e),Pr(e),Pr(e),Ir(e),Pr(e),Pr(e),Ir(e)],s=le(Ve($r(n),90));oe(0===s||90===s||180===s||270===s),t.rotation=s}break;case"elst":{const t=this.currentTrack;if(!t)break;const i=vl(e);e.skip(3);let r=!1,n=0;const s=Cl(e);for(let a=0;a<s;a++){const s=1===i?Rl(e):Cl(e),a=1===i?Fl(e):El(e),o=Pr(e);if(r){Pt._warn("Unsupported edit list: multiple edits are not currently supported. Only using first edit.");break}if(-1!==a){if(1!==o){Pt._warn("Unsupported edit list entry: media rate must be 1.");break}t.editListPreviousSegmentDurations=n,t.editListOffset=a,r=!0}else n+=s}}break;case"mdhd":{const t=this.currentTrack;if(!t)break;const i=vl(e);e.skip(3),0===i?(e.skip(8),t.timescale=Cl(e),t.durationInMediaTimescale=Cl(e)):1===i&&(e.skip(16),t.timescale=Cl(e),t.durationInMediaTimescale=Rl(e));let r=Sl(e);if(r>0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;Ge(t.languageCode)||(t.languageCode=We)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=Nl(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:H({},Pe),avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=re,this.readContiguousBoxes(e.slice(se,ne.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=vl(e);e.skip(3);const r=Cl(e);for(let n=0;n<r;n++){const r=e.filePos,n=Sr(e);if(!n)break;t.internalCodecId=n.name;const s=n.name.toLowerCase();if("video"===t.info.type){e.skip(24),t.info.width=Sl(e),t.info.height=Sl(e),t.info.squarePixelWidth=t.info.width,t.info.squarePixelHeight=t.info.height,e.skip(50),t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const i="encv"===s?t.frmaCodecString:s;t.frmaCodecString=null,"avc1"===i||"avc3"===i?(t.info.codec="avc",t.info.avcType="avc1"===i?1:3):"hvc1"===i||"hev1"===i?t.info.codec="hevc":"vp08"===i?t.info.codec="vp8":"vp09"===i?t.info.codec="vp9":"av01"===i?t.info.codec="av1":Zi.includes(s)?(t.info.codec="prores",t.info.proresFormat=s):null===i?Pt._warn("Unknown encrypted video codec due to missing frma box."):Pt._warn(`Unsupported video codec (sample entry type '${n.name}').`)}else{e.skip(8);const a=Sl(e);e.skip(6);let o=Sl(e),l=Sl(e);e.skip(4);let c=Cl(e)/65536,u=null;0===i&&a>0&&(1===a?(e.skip(4),l=8*Cl(e),e.skip(8)):2===a&&(e.skip(4),c=Dl(e),o=Cl(e),e.skip(4),l=Cl(e),u=Cl(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=c,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const d="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===d);else if("opus"===d)t.info.codec="opus",t.info.sampleRate=nr;else if("flac"===d)t.info.codec="flac";else if("ulaw"===d)t.info.codec="ulaw";else if("alaw"===d)t.info.codec="alaw";else if("ac-3"===d)t.info.codec="ac3";else if("ec-3"===d)t.info.codec="eac3";else if(er.includes(d))t.info.codec="dts",t.info.dtsFormat=d;else if("twos"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(Pt._warn(`Unsupported sample size ${l} for codec 'twos'.`),t.info.codec=null);else if("sowt"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec="pcm-s16":(Pt._warn(`Unsupported sample size ${l} for codec 'sowt'.`),t.info.codec=null);else if("raw "===d)t.info.codec="pcm-u8";else if("in24"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(Pt._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(Pt._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(Pt._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(Pt._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=l+7>>3,i=Boolean(1&u),r=Boolean(2&u),n=4&u?-1:0;l>0&&l<=64&&(i?32===l&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):n&1<<e-1?1===e?t.info.codec="pcm-s8":2===e?t.info.codec=r?"pcm-s16be":"pcm-s16":3===e?t.info.codec=r?"pcm-s24be":"pcm-s24":4===e&&(t.info.codec=r?"pcm-s32be":"pcm-s32"):1===e&&(t.info.codec="pcm-u8")),null===t.info.codec&&Pt._warn("Unsupported PCM format.")}else null===d?Pt._warn("Unknown encrypted audio codec due to missing frma box."):Pt._warn(`Unsupported audio codec (sample entry type '${n.name}').`)}e.filePos=r+n.totalSize}}break;case"frma":{const t=this.currentTrack;if(!t)break;const i=Nl(e,4).toLowerCase();t.frmaCodecString=i}break;case"schm":{const t=this.currentTrack;if(!t)break;e.skip(4);const i=Nl(e,4);"cenc"===i||"cens"===i||"cbcs"===i?t.encryptionInfo={scheme:i,defaultKid:null,defaultIsProtected:null,defaultPerSampleIvSize:null,defaultConstantIv:null,defaultCryptByteBlock:null,defaultSkipByteBlock:null}:Pt._warn(`Unsupported encryption scheme '${i}'.`)}break;case"tenc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=vl(e);e.skip(3),e.skip(1);const r=vl(e);if(i>0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==vl(e),t.encryptionInfo.defaultPerSampleIvSize=vl(e),t.encryptionInfo.defaultKid=Be(Tl(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=vl(e),r=new Uint8Array(16);r.set(Tl(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(oe(t.info),0===ne.contentSize)break;t.info.codecDescription=Tl(e,ne.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(oe(t.info),0===ne.contentSize)break;t.info.codecDescription=Tl(e,ne.contentSize)}break;case"vpcC":{const i=this.currentTrack;if(!i)break;oe("video"===(null==(t=i.info)?void 0:t.type)),e.skip(4);const r=vl(e),n=vl(e),s=vl(e),a=s>>4,o=s>>1&7,l=1&s,c=vl(e),u=vl(e),d=vl(e);i.info.vp9CodecInfo={profile:r,level:n,bitDepth:a,chromaSubsampling:o,videoFullRangeFlag:l,colourPrimaries:c,transferCharacteristics:u,matrixCoefficients:d}}break;case"av1C":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(i=t.info)?void 0:i.type)),e.skip(1);const o=vl(e),l=o>>5,c=31&o,u=vl(e),d=u>>7,h=u>>6&1,f=u>>4&1,m=u>>3&1,p=u>>2&1,g=3&u,k=2===l&&h?u>>5&1?12:10:h?10:8;e.skip(1);const y=Tl(e,ne.contentSize-4),b=yi(y);t.info.av1CodecInfo={profile:l,level:c,tier:d,bitDepth:k,monochrome:f,chromaSubsamplingX:m,chromaSubsamplingY:p,chromaSamplePosition:g,videoFullRangeFlag:null!=(r=null==b?void 0:b.videoFullRangeFlag)?r:0,colourPrimaries:null!=(n=null==b?void 0:b.colourPrimaries)?n:2,transferCharacteristics:null!=(s=null==b?void 0:b.transferCharacteristics)?s:2,matrixCoefficients:null!=(a=null==b?void 0:b.matrixCoefficients)?a:2}}break;case"colr":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(o=t.info)?void 0:o.type));const i=Nl(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=Sl(e),n=Sl(e),s=Sl(e);let a;"nclx"===i&&(a=Boolean(128&vl(e))),t.info.colorSpace={primaries:ye[r],transfer:Te[n],matrix:we[s],fullRange:a}}break;case"pasp":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(l=t.info)?void 0:l.type));const i=Cl(e),r=Cl(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==(null==(c=t.info)?void 0:c.type))break;e.skip(4);oe(3===vl(e)),xr(e),e.skip(2);const i=vl(e),r=0!==(64&i),n=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=vl(e);e.skip(t)}n&&e.skip(2);oe(4===vl(e));const s=xr(e),a=e.filePos,o=vl(e);if(64===o||103===o?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===o,objectType:null}):105===o||107===o?t.info.codec="mp3":221===o?t.info.codec="vorbis":169===o?t.info.codec="dts":Pt._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-a){oe(5===vl(e));const i=xr(e);if(t.info.codecDescription=Tl(e,i),"aac"===t.info.codec){const e=Rt(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(u=t.info)?void 0:u.type)),t.info.pcmLittleEndian=!!(255&Sl(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(d=t.info)?void 0:d.type)),e.skip(4);const i=vl(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=vl(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(h=t.info)?void 0:h.type)),e.skip(1);const i=vl(e),r=Sl(e),n=Cl(e),s=Il(e),a=vl(e);let o;o=0!==a?Tl(e,2+i):new Uint8Array(0);const l=new Uint8Array(19+o.byteLength),c=new DataView(l.buffer);c.setUint32(0,1332770163,!1),c.setUint32(4,1214603620,!1),c.setUint8(8,1),c.setUint8(9,i),c.setUint16(10,r,!0),c.setUint32(12,n,!0),c.setInt16(16,s,!0),c.setUint8(18,a),l.set(o,19),t.info.codecDescription=l,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(f=t.info)?void 0:f.type)),e.skip(4);const i=127,r=128,n=e.filePos;for(;e.filePos<ae;){const n=vl(e),s=Pl(e);if((n&i)===Si.STREAMINFO){e.skip(10);const i=Cl(e),r=i>>>12,n=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=n,e.skip(20)}else e.skip(s);if(n&r)break}const s=e.filePos;e.filePos=n;const a=Tl(e,s-n),o=new Uint8Array(4+a.byteLength);new DataView(o.buffer).setUint32(0,1716281667,!1),o.set(a,4),t.info.codecDescription=o}break;case"dac3":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(m=t.info)?void 0:m.type));const i=Tl(e,3),r=new Bt(i),n=r.readBits(2);r.skipBits(8);const s=r.readBits(3),a=r.readBits(1);n<3&&(t.info.sampleRate=Mt[n]),t.info.numberOfChannels=xi[s]+a}break;case"dec3":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(p=t.info)?void 0:p.type));const i=(e=>{if(e.length<2)return null;const t=new Bt(e),i=t.readBits(13),r=t.readBits(3),n=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),a=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let l=0;o>0?l=t.readBits(9):t.skipBits(1),n.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:a,numDepSub:o,chanLoc:l})}return 0===n.length?null:{dataRate:i,substreams:n}})(Tl(e,ne.contentSize));if(!i){Pt._warn("Invalid dec3 box contents, ignoring.");break}const r=Ri(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=Fi(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(g=t.info)?void 0:g.type));const i=(e=>{if(e.length<20)return null;const t=me(e),i=t.getUint32(0);if(0===i)return null;const r=new Bt(e);r.seekToByte(13);const n=r.readBits(2);r.skipBits(5);const s=r.readBits(1),a=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let l=null;return 0!==o?l=ji(o):a<Ni.length&&(l=Ni[a]+s),{sampleRate:i,maxBitrate:t.getUint32(4),avgBitrate:t.getUint32(8),pcmSampleDepth:e[12],sampleCount:Ui[n],channelLayout:o,numberOfChannels:l}})(Tl(e,Math.min(ne.contentSize,20)));if(!i){Pt._warn("Invalid ddts box contents, ignoring.");break}t.info.sampleRate=i.sampleRate,null!==i.numberOfChannels&&(t.info.numberOfChannels=i.numberOfChannels)}break;case"stts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);let r=0,n=0;for(let s=0;s<i;s++){const i=Cl(e),s=Cl(e);t.sampleTable.sampleTimingEntries.push({startIndex:r,startDecodeTimestamp:n,count:i,delta:s}),r+=i,n+=i*s}}break;case"ctts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);let r=0;for(let n=0;n<i;n++){const i=Cl(e),n=El(e);t.sampleTable.sampleCompositionTimeOffsets.push({startIndex:r,count:i,offset:n}),r+=i}}break;case"stsz":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e),r=Cl(e);if(0===i)for(let n=0;n<r;n++){const i=Cl(e);t.sampleTable.sampleSizes.push(i)}else t.sampleTable.sampleSizes.push(i)}break;case"stz2":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),e.skip(3);const i=vl(e),r=Cl(e),n=Tl(e,Math.ceil(r*i/8)),s=new Bt(n);for(let e=0;e<r;e++){const e=s.readBits(i);t.sampleTable.sampleSizes.push(e)}}break;case"stss":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),t.sampleTable.keySampleIndices=[];const i=Cl(e);for(let r=0;r<i;r++){const i=Cl(e)-1;t.sampleTable.keySampleIndices.push(i)}0!==t.sampleTable.keySampleIndices[0]&&t.sampleTable.keySampleIndices.unshift(0)}break;case"stsc":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let n=0;n<i;n++){const i=Cl(e)-1,r=Cl(e),n=Cl(e);t.sampleTable.sampleToChunk.push({startSampleIndex:-1,startChunkIndex:i,samplesPerChunk:r,sampleDescriptionIndex:n})}let r=0;for(let e=0;e<t.sampleTable.sampleToChunk.length;e++)if(t.sampleTable.sampleToChunk[e].startSampleIndex=r,e<t.sampleTable.sampleToChunk.length-1){r+=(t.sampleTable.sampleToChunk[e+1].startChunkIndex-t.sampleTable.sampleToChunk[e].startChunkIndex)*t.sampleTable.sampleToChunk[e].samplesPerChunk}}break;case"stco":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let r=0;r<i;r++){const i=Cl(e);t.sampleTable.chunkOffsets.push(i)}}break;case"co64":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let r=0;r<i;r++){const i=Rl(e);t.sampleTable.chunkOffsets.push(i)}}break;case"mvex":this.isFragmented=!0,this.readContiguousBoxes(e.slice(se,ne.contentSize));break;case"mehd":{const t=vl(e);e.skip(3);const i=1===t?Rl(e):Cl(e);this.movieDurationInTimescale=i}break;case"trex":{e.skip(4);const t=Cl(e),i=Cl(e),r=Cl(e),n=Cl(e),s=Cl(e);this.fragmentTrackDefaults.push({trackId:t,defaultSampleDescriptionIndex:i,defaultSampleDuration:r,defaultSampleSize:n,defaultSampleFlags:s})}break;case"tfra":{const t=vl(e);e.skip(3);const i=Cl(e),r=this.tracks.find(e=>e.id===i);if(!r)break;const n=Cl(e),s=(12&n)>>2,a=3&n,o=[vl,Sl,Pl,Cl],l=o[(48&n)>>4],c=o[s],u=o[a],d=Cl(e);for(let h=0;h<d;h++){const i=1===t?Rl(e):Cl(e),n=1===t?Rl(e):Cl(e);l(e),c(e),u(e),r.fragmentLookupTable.push({timestamp:i,moofOffset:n})}r.fragmentLookupTable.sort((e,t)=>e.timestamp-t.timestamp);for(let e=0;e<r.fragmentLookupTable.length-1;e++){const t=r.fragmentLookupTable[e],i=r.fragmentLookupTable[e+1];t.timestamp===i.timestamp&&(r.fragmentLookupTable.splice(e+1,1),e--)}}break;case"moof":this.currentFragment={moofOffset:re,moofSize:ne.totalSize,implicitBaseDataOffset:re,trackData:new Map,psshBoxes:[]},this.readContiguousBoxes(e.slice(se,ne.contentSize)),this.lastReadFragment=this.currentFragment,this.currentFragment=null;break;case"traf":if(oe(this.currentFragment),this.readContiguousBoxes(e.slice(se,ne.contentSize)),this.currentTrack){const e=this.currentFragment.trackData.get(this.currentTrack.id);e:if(e){if(0===e.samples.length){this.currentFragment.trackData.delete(this.currentTrack.id);break e}e.presentationTimestamps=e.samples.map((e,t)=>({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let n=0;n<e.presentationTimestamps.length;n++){const t=e.presentationTimestamps[n],i=e.samples[t.sampleIndex];if(null===e.firstKeyFrameTimestamp&&i.isKeyFrame&&(e.firstKeyFrameTimestamp=i.presentationTimestamp),n<e.presentationTimestamps.length-1){const r=e.presentationTimestamps[n+1].presentationTimestamp-t.presentationTimestamp;i.duration=r}}const t=e.samples[e.presentationTimestamps[0].sampleIndex],i=e.samples[ce(e.presentationTimestamps).sampleIndex];e.startTimestamp=t.presentationTimestamp,e.endTimestamp=i.presentationTimestamp+i.duration;const{currentFragmentState:r}=this.currentTrack;oe(r),null!==r.startTimestamp&&(Xr(e,r.startTimestamp),e.startTimestampIsFinal=!0),r.encryptionAuxInfo&&!e.samples[0].encryption&&(e.encryptionAuxInfo=r.encryptionAuxInfo)}this.currentTrack.currentFragmentState=null,this.currentTrack=null}break;case"pssh":{if(null==(k=this.input._formatOptions.isobmff)?void 0:k._suppressPsshParsing)break;const t=vr(Tl(e,ne.contentSize));this.currentFragment?this.currentFragment.psshBoxes.push(t):this.currentTrack||this.psshBoxes.push(t)}break;case"tfhd":{oe(this.currentFragment),e.skip(1);const t=Pl(e),i=Boolean(1&t),r=Boolean(2&t),n=Boolean(8&t),s=Boolean(16&t),a=Boolean(32&t),o=Boolean(65536&t),l=Boolean(131072&t),c=Cl(e),u=this.tracks.find(e=>e.id===c);if(!u)break;const d=this.fragmentTrackDefaults.find(e=>e.trackId===c);this.currentTrack=u,u.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:null!=(y=null==d?void 0:d.defaultSampleDescriptionIndex)?y:null,defaultSampleDuration:null!=(b=null==d?void 0:d.defaultSampleDuration)?b:null,defaultSampleSize:null!=(T=null==d?void 0:d.defaultSampleSize)?T:null,defaultSampleFlags:null!=(v=null==d?void 0:d.defaultSampleFlags)?v:null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=Rl(e):l&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=Cl(e)),n&&(u.currentFragmentState.defaultSampleDuration=Cl(e)),s&&(u.currentFragmentState.defaultSampleSize=Cl(e)),a&&(u.currentFragmentState.defaultSampleFlags=Cl(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;oe(t.currentFragmentState);const i=vl(e);e.skip(3);const r=0===i?Cl(e):Rl(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;oe(this.currentFragment),oe(t.currentFragmentState);const i=vl(e),r=Pl(e),n=Boolean(1&r),s=Boolean(4&r),a=Boolean(256&r),o=Boolean(512&r),l=Boolean(1024&r),c=Boolean(2048&r),u=Cl(e);let d=null;n&&(d=El(e));let h,f=null;s&&(f=Cl(e)),this.currentFragment.trackData.has(t.id)?(h=this.currentFragment.trackData.get(t.id),null!==d&&(h.currentOffset=t.currentFragmentState.baseDataOffset+d)):(h={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(null!=d?d:0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,h));for(let m=0;m<u;m++){let r,n,s;a?r=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleDuration),r=t.currentFragmentState.defaultSampleDuration),o?n=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleSize),n=t.currentFragmentState.defaultSampleSize),l?s=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleFlags),s=t.currentFragmentState.defaultSampleFlags),0===m&&null!==f&&(s=f);let u=0;c&&(u=0===i?Cl(e):El(e));const d=!(65536&s);h.samples.push({presentationTimestamp:h.currentTimestamp+u,duration:r,byteOffset:h.currentOffset,byteSize:n,isKeyFrame:d,encryption:null}),h.currentOffset+=n,h.currentTimestamp+=r}this.currentFragment.implicitBaseDataOffset=h.currentOffset}break;case"saiz":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;e.skip(1);if(1&Pl(e)){const i=Nl(e,4),r=Cl(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const i=vl(e),r=Cl(e);let n=null;0===i&&r>0&&(n=Tl(e,r));const s=Qr(t);s.defaultSampleInfoSize=i,s.sampleSizes=n,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=vl(e);if(1&Pl(e)){const i=Nl(e,4),r=Cl(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=Cl(e);if(0===r)break;r>1&&Pt._warn("Multiple saio entries are not supported; using the first offset only.");let n=0===i?Cl(e):Number(Rl(e));this.currentFragment&&(n+=this.currentFragment.moofOffset);Qr(t).offset=n}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;oe(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=Pl(e),n=Boolean(2&r),s=Cl(e),a=t.encryptionInfo.defaultPerSampleIvSize;oe(null!==a);for(let o=0;o<Math.min(s,i.samples.length);o++){const r=new Uint8Array(16);a>0?r.set(Tl(e,a),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(n){const t=Sl(e);s=[];for(let i=0;i<t;i++){const t=Sl(e),i=Cl(e);s.push({clearLen:t,protectedLen:i})}}i.samples[o].encryption={iv:r,subsamples:s}}}break;case"udta":{const t=this.iterateContiguousBoxes(e.slice(se,ne.contentSize));for(const{boxInfo:e,slice:i}of t){if("meta"!==e.name&&!this.currentTrack){const t=i.filePos;null!=(w=this.metadataTags).raw||(w.raw={}),"\xa9"===e.name[0]?null!=(S=this.metadataTags.raw)[P=e.name]||(S[P]=Cr(i)):null!=(I=this.metadataTags.raw)[x=e.name]||(I[x]=Tl(i,e.contentSize)),i.filePos=t}switch(e.name){case"meta":i.skip(-e.headerSize),this.traverseBox(i);break;case"\xa9nam":case"name":this.currentTrack?this.currentTrack.name=pe.decode(Tl(i,e.contentSize)):null!=(C=this.metadataTags).title||(C.title=Cr(i));break;case"\xa9des":this.currentTrack||null!=(B=this.metadataTags).description||(B.description=Cr(i));break;case"\xa9ART":this.currentTrack||null!=(E=this.metadataTags).artist||(E.artist=Cr(i));break;case"\xa9alb":this.currentTrack||null!=(_=this.metadataTags).album||(_.album=Cr(i));break;case"albr":this.currentTrack||null!=(R=this.metadataTags).albumArtist||(R.albumArtist=Cr(i));break;case"\xa9gen":this.currentTrack||null!=(F=this.metadataTags).genre||(F.genre=Cr(i));break;case"\xa9day":if(!this.currentTrack){const e=new Date(Cr(i));Number.isNaN(e.getTime())||null!=(A=this.metadataTags).date||(A.date=e)}break;case"\xa9cmt":this.currentTrack||null!=(M=this.metadataTags).comment||(M.comment=Cr(i));break;case"\xa9lyr":this.currentTrack||null!=(D=this.metadataTags).lyrics||(D.lyrics=Cr(i))}}}break;case"meta":{if(this.currentTrack)break;const t=0!==Cl(e);this.currentMetadataKeys=new Map,t?this.readContiguousBoxes(e.slice(se,ne.contentSize)):this.readContiguousBoxes(e.slice(se+4,ne.contentSize-4)),this.currentMetadataKeys=null}break;case"keys":{if(!this.currentMetadataKeys)break;e.skip(4);const t=Cl(e);for(let i=0;i<t;i++){const t=Cl(e);e.skip(4);const r=pe.decode(Tl(e,t-8));this.currentMetadataKeys.set(i+1,r)}}break;case"ilst":{if(!this.currentMetadataKeys)break;const t=this.iterateContiguousBoxes(e.slice(se,ne.contentSize));for(const{boxInfo:e,slice:i}of t){let t=e.name;const r=(t.charCodeAt(0)<<24)+(t.charCodeAt(1)<<16)+(t.charCodeAt(2)<<8)+t.charCodeAt(3);this.currentMetadataKeys.has(r)&&(t=this.currentMetadataKeys.get(r));const n=Br(i);switch(null!=(N=this.metadataTags).raw||(N.raw={}),null!=(O=this.metadataTags.raw)[t]||(O[t]=n),t){case"\xa9nam":case"titl":case"com.apple.quicktime.title":case"title":"string"===typeof n&&(null!=(L=this.metadataTags).title||(L.title=n));break;case"\xa9des":case"desc":case"dscp":case"com.apple.quicktime.description":case"description":"string"===typeof n&&(null!=(z=this.metadataTags).description||(z.description=n));break;case"\xa9ART":case"com.apple.quicktime.artist":case"artist":"string"===typeof n&&(null!=(U=this.metadataTags).artist||(U.artist=n));break;case"\xa9alb":case"albm":case"com.apple.quicktime.album":case"album":"string"===typeof n&&(null!=(q=this.metadataTags).album||(q.album=n));break;case"aART":case"album_artist":"string"===typeof n&&(null!=(W=this.metadataTags).albumArtist||(W.albumArtist=n));break;case"\xa9cmt":case"com.apple.quicktime.comment":case"comment":"string"===typeof n&&(null!=(j=this.metadataTags).comment||(j.comment=n));break;case"\xa9gen":case"gnre":case"com.apple.quicktime.genre":case"genre":"string"===typeof n&&(null!=(K=this.metadataTags).genre||(K.genre=n));break;case"\xa9lyr":case"lyrics":"string"===typeof n&&(null!=(X=this.metadataTags).lyrics||(X.lyrics=n));break;case"\xa9day":case"rldt":case"com.apple.quicktime.creationdate":case"date":if("string"===typeof n){const e=new Date(n);Number.isNaN(e.getTime())||null!=($=this.metadataTags).date||($.date=e)}break;case"covr":case"com.apple.quicktime.artwork":n instanceof It?(null!=(G=this.metadataTags).images||(G.images=[]),this.metadataTags.images.push({data:n.data,kind:"coverFront",mimeType:n.mimeType})):n instanceof Uint8Array&&(null!=(Q=this.metadataTags).images||(Q.images=[]),this.metadataTags.images.push({data:n,kind:"coverFront",mimeType:"image/*"}));break;case"track":if("string"===typeof n){const e=n.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=(Y=this.metadataTags).trackNumber||(Y.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(J=this.metadataTags).tracksTotal||(J.tracksTotal=i))}break;case"trkn":if(n instanceof Uint8Array&&n.length>=6){const e=me(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(Z=this.metadataTags).trackNumber||(Z.trackNumber=t)),i>0&&(null!=(ee=this.metadataTags).tracksTotal||(ee.tracksTotal=i))}break;case"disc":case"disk":if(n instanceof Uint8Array&&n.length>=6){const e=me(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(te=this.metadataTags).discNumber||(te.discNumber=t)),i>0&&(null!=(ie=this.metadataTags).discsTotal||(ie.discsTotal=i))}}}}}return e.filePos=ae,!0}}class Ur{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){var e;const t=this.internalTrack;if(t.durationInMediaTimescale<=0)return null;oe(t.trackBacking);const i=yield t.trackBacking.getFirstPacket({metadataOnly:!0});return(null!=(e=null==i?void 0:i.timestamp)?e:0)+t.durationInMediaTimescale/t.timescale})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getFirstPacket(e){return Y(this,null,function*(){const t=yield this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)})}mapTimestampIntoTimescale(e){return He(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}getPacket(e,t){return Y(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=Hr(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return Gr(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=Re(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.packetToSampleIndex.get(e);if(void 0!==i)return this.fetchPacketForSampleIndex(i+1,t);const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1<t.samples.length)return{sampleIndex:r.sampleIndex+1,correctSampleFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{sampleIndex:0,correctSampleFound:!0}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}getKeyPacket(e,t){return Y(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=Vr(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return Gr(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=Ne(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s})}getNextKeyPacket(e,t){return Y(this,null,function*(){const i=this.packetToSampleIndex.get(e);if(void 0!==i){const e=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=Kr(e,i);return this.fetchPacketForSampleIndex(r,t)}const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return oe(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}fetchPacketForSampleIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=jr(i,e);if(!r)return null;let n;if(t.metadataOnly)n=br;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(ct(t)&&(t=yield t),!t)return null;if(n=Tl(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=yield Yr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);e<i.length&&(t=i[e])}null!=t||(t=Jr(this.internalTrack.encryptionInfo)),t&&(n=yield Zr(this.internalTrack,t,n,null))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,a=r.duration/this.internalTrack.timescale,o=new Tr(n,r.isKeyFrame?"key":"delta",s,a,e,r.sampleSize);return this.packetToSampleIndex.set(o,e),o})}fetchPacketInFragment(e,t,i){return Y(this,null,function*(){var r;if(-1===t)return null;const n=e.trackData.get(this.internalTrack.id).samples[t];let s;if(oe(n),i.metadataOnly)s=br;else{let t=this.internalTrack.demuxer.reader.requestSlice(n.byteOffset,n.byteSize);if(ct(t)&&(t=yield t),!t)return null;if(s=Tl(t,n.byteSize),this.internalTrack.encryptionInfo){const t=null!=(r=n.encryption)?r:Jr(this.internalTrack.encryptionInfo);t&&(s=yield Zr(this.internalTrack,t,s,e))}}const a=(n.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,o=n.duration/this.internalTrack.timescale,l=new Tr(s,n.isKeyFrame?"key":"delta",a,o,e.moofOffset+t,n.byteSize);return this.packetToFragmentLocation.set(l,{fragment:e,sampleIndex:t}),l})}performFragmentedLookup(e,t,i,r,n){return Y(this,null,function*(){var s,a,o;const l=this.internalTrack.demuxer;let c=null,u=null,d=-1;if(e){const{sampleIndex:i,correctSampleFound:r}=t(e);if(r)return this.fetchPacketInFragment(e,i,n);-1!==i&&(u=e,d=i)}const h=Re(this.internalTrack.fragmentLookupTable,i,e=>e.timestamp),f=-1!==h?this.internalTrack.fragmentLookupTable[h]:null,m=Re(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),p=-1!==m?this.internalTrack.fragmentPositionCache[m]:null,g=Math.max(null!=(s=null==f?void 0:f.moofOffset)?s:0,null!=(a=null==p?void 0:p.moofOffset)?a:0)||null;let k;for(e?null===g||e.moofOffset>=g?(k=e.moofOffset+e.moofSize,c=e):k=g:k=null!=g?g:0;;){if(c){const e=c.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=l.reader.requestSliceRange(k,8,16);if(ct(e)&&(e=yield e),!e)break;const i=k,s=Sr(e);if(!s)break;if("moof"===s.name){c=yield l.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(c);if(r)return this.fetchPacketInFragment(c,e,n);-1!==e&&(u=c,d=e)}k=i+s.totalSize}if(f&&(!u||u.moofOffset<f.moofOffset)){const e=this.internalTrack.fragmentLookupTable[h-1];oe(!e||e.timestamp<f.timestamp);const i=null!=(o=null==e?void 0:e.timestamp)?o:-1/0;return this.performFragmentedLookup(null,t,i,r,n)}return u?this.fetchPacketInFragment(u,d,n):null})}}class qr extends Ur{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.rotation}getColorSpace(){return Y(this,null,function*(){var e,t,i,r;const n=yield this.getDecoderConfig();return n?{primaries:null==(e=n.colorSpace)?void 0:e.primaries,transfer:null==(t=n.colorSpace)?void 0:t.transfer,matrix:null==(i=n.colorSpace)?void 0:i.matrix,fullRange:null==(r=n.colorSpace)?void 0:r.fullRange}:this.internalTrack.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)})}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e,t,i,r,n,s,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=yield this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&bi(e.data)}}else{const e=yield this.getFirstPacket({}),t=e&&yi(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const t=yield this.getFirstPacket({}),i=t&&gi(t.data);i&&(this.internalTrack.info.vp9CodecInfo=V(H({},null!=(e=this.internalTrack.info.vp9CodecInfo)?e:i),{videoFullRangeFlag:i.videoFullRangeFlag,colourPrimaries:i.colourPrimaries,transferCharacteristics:i.transferCharacteristics,matrixCoefficients:i.matrixCoefficients}))}else{const e=yield this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&ni(e.data)}else{const e=yield this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&$t(e.data)}if(!Se(this.internalTrack.info.colorSpace)){const e=ir(this.internalTrack.info);null!=(t=this.internalTrack.info.colorSpace).primaries||(t.primaries=e.primaries),null!=(i=this.internalTrack.info.colorSpace).transfer||(i.transfer=e.transfer),null!=(r=this.internalTrack.info.colorSpace).matrix||(r.matrix=e.matrix),null!=(n=this.internalTrack.info.colorSpace).fullRange||(n.fullRange=e.fullRange)}const o={codec:tr(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(s=this.internalTrack.info.codecDescription)?s:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class Wr extends Ur{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Wi(e.data)}return{codec:rr(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const Hr=(e,t)=>{if(e.presentationTimestamps){const i=Re(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=Re(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},Vr=(e,t)=>{var i;if(!e.keySampleIndices)return Hr(e,t);if(e.presentationTimestamps){const i=Re(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==_e(e.keySampleIndices,i,e=>e))return i}return-1}{const r=Hr(e,t),n=Re(e.keySampleIndices,r,e=>e);return null!=(i=e.keySampleIndices[n])?i:-1}},jr=(e,t)=>{const i=Re(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let n=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=Re(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),a=e.sampleCompositionTimeOffsets[s];a&&t-a.startIndex<a.count&&(n+=a.offset);const o=e.sampleSizes[Math.min(t,e.sampleSizes.length-1)],l=Re(e.sampleToChunk,t,e=>e.startSampleIndex),c=e.sampleToChunk[l];oe(c);const u=c.startChunkIndex+Math.floor((t-c.startSampleIndex)/c.samplesPerChunk),d=e.chunkOffsets[u],h=c.startSampleIndex+(u-c.startChunkIndex)*c.samplesPerChunk;let f=0,m=d;if(1===e.sampleSizes.length)m+=o*(t-h),f+=o*c.samplesPerChunk;else for(let g=h;g<h+c.samplesPerChunk;g++){const i=e.sampleSizes[g];g<t&&(m+=i),f+=i}let p=r.delta;if(e.presentationTimestamps){const i=e.presentationTimestampIndexMap[t];if(oe(void 0!==i),i<e.presentationTimestamps.length-1){p=e.presentationTimestamps[i+1].presentationTimestamp-n}}return{presentationTimestamp:n,duration:p,sampleOffset:m,sampleSize:o,chunkOffset:d,chunkSize:f,isKeyFrame:!e.keySampleIndices||-1!==_e(e.keySampleIndices,t,e=>e)}},Kr=(e,t)=>{var i;if(!e.keySampleIndices)return t+1;const r=Re(e.keySampleIndices,t,e=>e);return null!=(i=e.keySampleIndices[r+1])?i:-1},Xr=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},$r=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},Gr=e=>0===e.sampleSizes.length,Qr=e=>{var t,i,r;return e.currentFragmentState?null!=(i=(t=e.currentFragmentState).encryptionAuxInfo)?i:t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}:null!=(r=e.encryptionAuxInfo)?r:e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}},Yr=(e,t,i)=>Y(null,null,function*(){if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{oe(i.sampleSizes);for(let e=0;e<i.sampleCount;e++)r+=i.sampleSizes[e]}let n=e.requestSlice(i.offset,r);if(ct(n)&&(n=yield n),!n)throw new Error("Failed to read auxiliary encryption info.");const s=t.defaultPerSampleIvSize;oe(null!==s);const a=[];for(let e=0;e<i.sampleCount;e++){const r=i.defaultSampleInfoSize>0?i.defaultSampleInfoSize:i.sampleSizes[e],o=new Uint8Array(16);s>0?o.set(Tl(n,s),0):o.set(t.defaultConstantIv,0);let l=null;if(r>s){const e=Sl(n);l=[];for(let t=0;t<e;t++){const e=Sl(n),t=Cl(n);l.push({clearLen:e,protectedLen:t})}}a.push({iv:o,subsamples:l})}return i.resolved=a,a}),Jr=e=>e.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,Zr=(e,t,i,r)=>Y(null,null,function*(){var n;oe(e.encryptionInfo);const s=e.encryptionInfo;oe(null!==s.defaultKid);const a=s.defaultKid;let o;const l=e.demuxer.decryptionKeyCache.get(a);if(l)o=yield l;else{if(!(null==(n=e.demuxer.input._formatOptions.isobmff)?void 0:n.resolveKeyId))throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=Y(null,null,function*(){let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(a));for(let e=0;e<t.length-1;e++)for(let i=e+1;i<t.length;i++)wr(t[e],t[i])&&(t.splice(i,1),i--)}const i=yield e.demuxer.input._formatOptions.isobmff.resolveKeyId({keyId:a,psshBoxes:t});if(!("string"===typeof i&&32===i.length&&Ce.test(i)||i instanceof Uint8Array&&16===i.byteLength))throw new TypeError("resolveKeyId must return a 32-character hex string or a 16-byte Uint8Array containing the decryption key.");return i instanceof Uint8Array?i:(e=>{oe(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;i<e.length;i+=2)t[i/2]=parseInt(e.slice(i,i+2),16);return t})(i)});e.demuxer.decryptionKeyCache.set(a,t),o=yield t}return"cenc"===s.scheme||"cens"===s.scheme?en(o,s,t,i):tn(o,s,t,i)}),en=(e,t,i,r)=>Y(null,null,function*(){const n=new Uint8Array(16);n.set(i.iv,0);const s=yield crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),a=e=>Y(null,null,function*(){const t=yield crypto.subtle.decrypt({name:"AES-CTR",counter:n,length:64},s,e);return new Uint8Array(t)});if(!i.subsamples)return a(r);oe(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=rn(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let l=0;for(const e of o)for(const t of e.perSubsample)l+=t.length;const c=new Uint8Array(l);let u=0;for(const e of o)for(const t of e.perSubsample)c.set(r.subarray(t.offset,t.offset+t.length),u),u+=t.length;const d=yield a(c),h=new Uint8Array(r);let f=0;for(const e of o)for(const t of e.perSubsample)h.set(d.subarray(f,f+t.length),t.offset),f+=t.length;return h}),tn=(e,t,i,r)=>{const n=new Lr;n.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,a=t.defaultSkipByteBlock;if(oe(null!==s&&null!==a),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i<t;i++){const t=16*i;n.in.set(r.subarray(t,t+16)),n.decrypt(),e.set(n.out,t)}return e}if(0===s&&0===a)throw new Error("cbcs with subsamples requires pattern encryption.");const o=new Uint8Array(r),l=rn(i.subsamples,s,a),c=new DataView(i.iv.buffer,i.iv.byteOffset,16);for(const u of l){n.iv[0]=c.getUint32(0,!1),n.iv[1]=c.getUint32(4,!1),n.iv[2]=c.getUint32(8,!1),n.iv[3]=c.getUint32(12,!1);for(const e of u.perSubsample){const t=e.length/16;for(let i=0;i<t;i++){const t=e.offset+16*i;n.in.set(r.subarray(t,t+16)),n.decrypt(),o.set(n.out,t)}}}return o},rn=(e,t,i)=>{const r=[],n=0!==t||0!==i;let s=0;for(const a of e){s+=a.clearLen;const e=[];if(n){let r=a.protectedLen,n=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:n,length:s}),n+=s,r-=s;const a=Math.min(16*i,r);n+=a,r-=a}s+=a.protectedLen}else a.protectedLen>0&&e.push({offset:s,length:a.protectedLen}),s+=a.protectedLen;r.push({perSubsample:e})}return r};var nn,sn;(sn=nn||(nn={}))[sn.EBML=440786851]="EBML",sn[sn.EBMLVersion=17030]="EBMLVersion",sn[sn.EBMLReadVersion=17143]="EBMLReadVersion",sn[sn.EBMLMaxIDLength=17138]="EBMLMaxIDLength",sn[sn.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",sn[sn.DocType=17026]="DocType",sn[sn.DocTypeVersion=17031]="DocTypeVersion",sn[sn.DocTypeReadVersion=17029]="DocTypeReadVersion",sn[sn.Void=236]="Void",sn[sn.Segment=408125543]="Segment",sn[sn.SeekHead=290298740]="SeekHead",sn[sn.Seek=19899]="Seek",sn[sn.SeekID=21419]="SeekID",sn[sn.SeekPosition=21420]="SeekPosition",sn[sn.Duration=17545]="Duration",sn[sn.Info=357149030]="Info",sn[sn.TimestampScale=2807729]="TimestampScale",sn[sn.MuxingApp=19840]="MuxingApp",sn[sn.WritingApp=22337]="WritingApp",sn[sn.Tracks=374648427]="Tracks",sn[sn.TrackEntry=174]="TrackEntry",sn[sn.TrackNumber=215]="TrackNumber",sn[sn.TrackUID=29637]="TrackUID",sn[sn.TrackType=131]="TrackType",sn[sn.FlagEnabled=185]="FlagEnabled",sn[sn.FlagDefault=136]="FlagDefault",sn[sn.FlagForced=21930]="FlagForced",sn[sn.FlagOriginal=21934]="FlagOriginal",sn[sn.FlagHearingImpaired=21931]="FlagHearingImpaired",sn[sn.FlagVisualImpaired=21932]="FlagVisualImpaired",sn[sn.FlagCommentary=21935]="FlagCommentary",sn[sn.FlagLacing=156]="FlagLacing",sn[sn.Name=21358]="Name",sn[sn.Language=2274716]="Language",sn[sn.LanguageBCP47=2274717]="LanguageBCP47",sn[sn.CodecID=134]="CodecID",sn[sn.CodecPrivate=25506]="CodecPrivate",sn[sn.CodecDelay=22186]="CodecDelay",sn[sn.SeekPreRoll=22203]="SeekPreRoll",sn[sn.DefaultDuration=2352003]="DefaultDuration",sn[sn.Video=224]="Video",sn[sn.PixelWidth=176]="PixelWidth",sn[sn.PixelHeight=186]="PixelHeight",sn[sn.DisplayWidth=21680]="DisplayWidth",sn[sn.DisplayHeight=21690]="DisplayHeight",sn[sn.DisplayUnit=21682]="DisplayUnit",sn[sn.AlphaMode=21440]="AlphaMode",sn[sn.Audio=225]="Audio",sn[sn.SamplingFrequency=181]="SamplingFrequency",sn[sn.Channels=159]="Channels",sn[sn.BitDepth=25188]="BitDepth",sn[sn.SimpleBlock=163]="SimpleBlock",sn[sn.BlockGroup=160]="BlockGroup",sn[sn.Block=161]="Block",sn[sn.BlockAdditions=30113]="BlockAdditions",sn[sn.BlockMore=166]="BlockMore",sn[sn.BlockAdditional=165]="BlockAdditional",sn[sn.BlockAddID=238]="BlockAddID",sn[sn.BlockDuration=155]="BlockDuration",sn[sn.ReferenceBlock=251]="ReferenceBlock",sn[sn.Cluster=524531317]="Cluster",sn[sn.Timestamp=231]="Timestamp",sn[sn.Cues=475249515]="Cues",sn[sn.CuePoint=187]="CuePoint",sn[sn.CueTime=179]="CueTime",sn[sn.CueTrackPositions=183]="CueTrackPositions",sn[sn.CueTrack=247]="CueTrack",sn[sn.CueClusterPosition=241]="CueClusterPosition",sn[sn.Colour=21936]="Colour",sn[sn.MatrixCoefficients=21937]="MatrixCoefficients",sn[sn.TransferCharacteristics=21946]="TransferCharacteristics",sn[sn.Primaries=21947]="Primaries",sn[sn.Range=21945]="Range",sn[sn.Projection=30320]="Projection",sn[sn.ProjectionType=30321]="ProjectionType",sn[sn.ProjectionPoseRoll=30325]="ProjectionPoseRoll",sn[sn.Attachments=423732329]="Attachments",sn[sn.AttachedFile=24999]="AttachedFile",sn[sn.FileDescription=18046]="FileDescription",sn[sn.FileName=18030]="FileName",sn[sn.FileMediaType=18016]="FileMediaType",sn[sn.FileData=18012]="FileData",sn[sn.FileUID=18094]="FileUID",sn[sn.Chapters=272869232]="Chapters",sn[sn.Tags=307544935]="Tags",sn[sn.Tag=29555]="Tag",sn[sn.Targets=25536]="Targets",sn[sn.TargetTypeValue=26826]="TargetTypeValue",sn[sn.TargetType=25546]="TargetType",sn[sn.TagTrackUID=25541]="TagTrackUID",sn[sn.TagEditionUID=25545]="TagEditionUID",sn[sn.TagChapterUID=25540]="TagChapterUID",sn[sn.TagAttachmentUID=25542]="TagAttachmentUID",sn[sn.SimpleTag=26568]="SimpleTag",sn[sn.TagName=17827]="TagName",sn[sn.TagLanguage=17530]="TagLanguage",sn[sn.TagString=17543]="TagString",sn[sn.TagBinary=17541]="TagBinary",sn[sn.ContentEncodings=28032]="ContentEncodings",sn[sn.ContentEncoding=25152]="ContentEncoding",sn[sn.ContentEncodingOrder=20529]="ContentEncodingOrder",sn[sn.ContentEncodingScope=20530]="ContentEncodingScope",sn[sn.ContentCompression=20532]="ContentCompression",sn[sn.ContentCompAlgo=16980]="ContentCompAlgo",sn[sn.ContentCompSettings=16981]="ContentCompSettings",sn[sn.ContentEncryption=20533]="ContentEncryption";const an=[nn.EBML,nn.Segment],on=[nn.SeekHead,nn.Info,nn.Cluster,nn.Tracks,nn.Cues,nn.Attachments,nn.Chapters,nn.Tags],ln=[...an,...on],cn=16,un=e=>{if(e.remainingLength<1)return null;const t=vl(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength<i?null:i},dn=e=>{if(e.remainingLength<1)return null;const t=vl(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength<i-1)return null;let n=t&r-1;for(let s=1;s<i;s++)n*=256,n+=vl(e);return n},hn=(e,t)=>{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r<t;r++)i*=256,i+=vl(e);return i},fn=e=>{const t=un(e);if(null===t)return null;if(e.remainingLength<t)return null;return hn(e,t)},mn=e=>{if(e.remainingLength<1)return null;if(255===vl(e))return;e.skip(-1);const t=dn(e);return null===t?null:72057594037927940!==t?t:void 0},pn=e=>{oe(e.remainingLength>=2);const t=fn(e);if(null===t)return null;const i=mn(e);return null===i?null:{id:t,size:i}},gn=(e,t)=>{const i=Tl(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return String.fromCharCode(...i.subarray(0,r))},kn=(e,t)=>{const i=Tl(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return pe.decode(i.subarray(0,r))},yn=(e,t)=>{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?Ml(e):Dl(e)},bn=(e,t,i,r)=>Y(null,null,function*(){const n=new Set(i);let s=t;for(;null===r||s<r;){let t=e.requestSliceRange(s,2,cn);if(ct(t)&&(t=yield t),!t)break;const i=pn(t);if(!i)break;if(n.has(i.id))return{pos:s,found:!0};Dn(i.size),s=t.filePos+i.size}return{pos:null!==r&&r>s?r:s,found:!1}}),Tn=(e,t,i,r)=>Y(null,null,function*(){const n=q(2,16),s=new Set(i);let a=t;for(;a<r;){let t=e.requestSliceRange(a,0,Math.min(n,r-a));if(ct(t)&&(t=yield t),!t)break;if(t.length<8)break;for(let e=0;e<t.length-8;e++){t.filePos=a;const e=fn(t);if(null!==e&&s.has(e))return a;a++}}return null}),vn="V_MPEG4/ISO/AVC",wn="V_MPEGH/ISO/HEVC",Sn="V_VP8",Pn="V_VP9",In="V_AV1",xn="V_PRORES",Cn="A_AAC",Bn="A_MPEG/L3",En="A_OPUS",_n="A_VORBIS",Rn="A_FLAC",Fn="A_AC3",An="A_EAC3",Mn="A_DTS";function Dn(e){if(void 0===e)throw new Error("Undefined element size is used in a place where it is not supported.")}var Nn,On,Ln,zn,Un,qn;(On=Nn||(Nn={}))[On.None=0]="None",On[On.Xiph=1]="Xiph",On[On.FixedSize=2]="FixedSize",On[On.Ebml=3]="Ebml",(zn=Ln||(Ln={}))[zn.Block=1]="Block",zn[zn.Private=2]="Private",zn[zn.Next=4]="Next",(qn=Un||(Un={}))[qn.Zlib=0]="Zlib",qn[qn.Bzlib=1]="Bzlib",qn[qn.lzo1x=2]="lzo1x",qn[qn.HeaderStripping=3]="HeaderStripping";const Wn=[{id:nn.SeekHead,flag:"seekHeadSeen"},{id:nn.Info,flag:"infoSeen"},{id:nn.Tracks,flag:"tracksSeen"},{id:nn.Cues,flag:"cuesSeen"}],Hn=10*q(2,20);class Vn extends yr{constructor(e){super(e),this.readMetadataPromise=null,this.segments=[],this.currentSegment=null,this.currentTrack=null,this.currentCluster=null,this.currentBlock=null,this.currentBlockAdditional=null,this.currentCueTime=null,this.currentDecodingInstruction=null,this.currentTagTargetIsMovie=!0,this.currentSimpleTagName=null,this.currentAttachedFile=null,this.isWebM=!1,this.reader=e._reader}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.segments.flatMap(e=>e.tracks.map(e=>e.trackBacking))})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)})),hasAudio:this.segments.some(e=>e.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)})),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return Y(this,null,function*(){yield this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&(yield this.loadSegmentMetadata(t)),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e=H(H({},e),t.metadataTags);return e})}readMetadata(){var e;return null!=(e=this.readMetadataPromise)?e:this.readMetadataPromise=(()=>Y(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,cn);if(ct(t)&&(t=yield t),!t)break;const i=pn(t);if(!i)break;const r=i.id;let n=i.size;const s=t.filePos;if(r===nn.EBML){Dn(n);let e=this.reader.requestSlice(s,n);if(ct(e)&&(e=yield e),!e)break;this.readContiguousElements(e)}else if(r===nn.Segment){if(yield this.readSegment(s,n),void 0===n)break;if(null===this.reader.fileSize)break}else if(r===nn.Cluster){if(null===this.reader.fileSize)break;if(void 0===n){n=(yield bn(this.reader,s,ln,this.reader.fileSize)).pos-s}const e=ce(this.segments);e&&(e.elementEndPos=s+n)}Dn(n),e=s+n}}))()}readSegment(e,t){return Y(this,null,function*(){var i;this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let r=e;for(;null===this.currentSegment.elementEndPos||r<this.currentSegment.elementEndPos;){let e=this.reader.requestSliceRange(r,2,cn);if(ct(e)&&(e=yield e),!e)break;const t=r,n=pn(e);if(!n||!on.includes(n.id)&&n.id!==nn.Void){const e=yield Tn(this.reader,t,on,Math.min(null!=(i=this.currentSegment.elementEndPos)?i:1/0,t+Hn));if(e){r=e;continue}break}const{id:s,size:a}=n,o=e.filePos,l=Wn.findIndex(e=>e.id===s);if(-1!==l){const e=Wn[l].flag;this.currentSegment[e]=!0,Dn(a);let t=this.reader.requestSlice(o,a);ct(t)&&(t=yield t),t&&this.readContiguousElements(t)}else if(s===nn.Tags||s===nn.Attachments){s===nn.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,Dn(a);let e=this.reader.requestSlice(o,a);ct(e)&&(e=yield e),e&&this.readContiguousElements(e)}else if(s===nn.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===a)break;r=o+a}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const t of this.currentSegment.seekEntries){const i=Wn.find(e=>e.id===t.id);if(!i)continue;if(this.currentSegment[i.flag])continue;let r=this.reader.requestSliceRange(e+t.segmentPosition,2,cn);if(ct(r)&&(r=yield r),!r)continue;const n=pn(r);if(!n)continue;const{id:s,size:a}=n;if(s!==i.id)continue;Dn(a),this.currentSegment[i.flag]=!0;let o=this.reader.requestSlice(r.filePos,a);ct(o)&&(o=yield o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const e of this.currentSegment.tracks)null!==e.defaultDurationNs&&(e.defaultDuration=this.currentSegment.timestampFactor*e.defaultDurationNs/1e9);const n=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const e of this.currentSegment.cuePoints){const t=n.get(e.trackId);t&&t.cuePoints.push(e)}for(const e of this.currentSegment.tracks){e.cuePoints.sort((e,t)=>e.time-t.time);for(let t=0;t<e.cuePoints.length-1;t++){const i=e.cuePoints[t],r=e.cuePoints[t+1];i.time===r.time&&(e.cuePoints.splice(t+1,1),t--)}}let s=null,a=-1/0;for(const e of this.currentSegment.tracks)e.cuePoints.length>a&&(a=e.cuePoints.length,s=e);for(const e of this.currentSegment.tracks)0===e.cuePoints.length&&(e.cuePoints=s.cuePoints);this.currentSegment=null})}readCluster(e,t){return Y(this,null,function*(){var i;if((null==(i=t.lastReadCluster)?void 0:i.elementStartPos)===e)return t.lastReadCluster;let r=this.reader.requestSliceRange(e,2,cn);ct(r)&&(r=yield r),oe(r);const n=e,s=pn(r);oe(s);oe(s.id===nn.Cluster);let a=s.size;const o=r.filePos;if(void 0===a){a=(yield bn(this.reader,o,ln,t.elementEndPos)).pos-o}let l=this.reader.requestSlice(o,a);ct(l)&&(l=yield l);const c={segment:t,elementStartPos:n,elementEndPos:o+a,dataStartPos:o,timestamp:-1,trackData:new Map};if(this.currentCluster=c,l){const e=this.readContiguousElements(l,ln);c.elementEndPos=e}for(const[,e]of c.trackData){const t=e.track;oe(e.blocks.length>0);let i=!1;for(let n=0;n<e.blocks.length;n++){const t=e.blocks[n];t.timestamp+=c.timestamp,i||(i=t.lacing!==Nn.None)}e.presentationTimestamps=e.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let n=0;n<e.presentationTimestamps.length;n++){const i=e.presentationTimestamps[n],r=e.blocks[i.blockIndex];if(null===e.firstKeyFrameTimestamp&&r.isKeyFrame&&(e.firstKeyFrameTimestamp=r.timestamp),n<e.presentationTimestamps.length-1){const t=e.presentationTimestamps[n+1];r.duration=t.timestamp-r.timestamp}else 0===r.duration&&null!=t.defaultDuration&&r.lacing===Nn.None&&(r.duration=t.defaultDuration)}i&&(this.expandLacedBlocks(e.blocks,t),e.presentationTimestamps=e.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const r=e.blocks[e.presentationTimestamps[0].blockIndex],s=e.blocks[ce(e.presentationTimestamps).blockIndex];e.startTimestamp=r.timestamp,e.endTimestamp=s.timestamp+s.duration;const a=Re(t.clusterPositionCache,e.startTimestamp,e=>e.startTimestamp);-1!==a&&t.clusterPositionCache[a].elementStartPos===n||t.clusterPositionCache.splice(a+1,0,{elementStartPos:c.elementStartPos,startTimestamp:e.startTimestamp})}return t.lastReadCluster=c,c})}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){var i;for(let r=0;r<e.length;r++){const n=e[r];if(n.lacing===Nn.None)continue;n.decoded||(n.data=this.decodeBlockData(t,n.data),n.decoded=!0);const s=yl.tempFromBytes(n.data),a=[],o=vl(s)+1;switch(n.lacing){case Nn.Xiph:{let e=0;for(let t=0;t<o-1;t++){let t=0;for(;s.bufferPos<s.length;){const i=vl(s);if(t+=i,i<255){a.push(t),e+=t;break}}}a.push(s.length-(s.bufferPos+e))}break;case Nn.FixedSize:{const e=s.length-1,t=Math.floor(e/o);for(let i=0;i<o;i++)a.push(t)}break;case Nn.Ebml:{const e=dn(s);oe(null!==e);let t=e;a.push(t);let i=t;for(let r=1;r<o-1;r++){const e=s.bufferPos,r=dn(s);oe(null!==r);t+=r-((1<<7*(s.bufferPos-e)-1)-1),a.push(t),i+=t}a.push(s.length-(s.bufferPos+i))}break;default:oe(!1)}oe(a.length===o),e.splice(r,1);const l=n.duration||o*(null!=(i=t.defaultDuration)?i:0);for(let t=0;t<o;t++){const i=a[t],c=Tl(s,i),u=n.timestamp+l*t/o,d=l/o;e.splice(r+t,0,{timestamp:u,duration:d,isKeyFrame:n.isKeyFrame,data:c,lacing:Nn.None,decoded:!0,postProcessed:!1,mainAdditional:n.mainAdditional})}r+=o,r--}}loadSegmentMetadata(e){return Y(this,null,function*(){for(const t of e.seekEntries){if(t.id!==nn.Tags||e.tagsSeen){if(t.id!==nn.Attachments||e.attachmentsSeen)continue}else;let i=this.reader.requestSliceRange(e.dataStartPos+t.segmentPosition,2,cn);if(ct(i)&&(i=yield i),!i)continue;const r=pn(i);if(!r||r.id!==t.id)continue;const{size:n}=r;Dn(n),oe(!this.currentSegment),this.currentSegment=e;let s=this.reader.requestSlice(i.filePos,n);ct(s)&&(s=yield s),s&&this.readContiguousElements(s),this.currentSegment=null,t.id===nn.Tags?e.tagsSeen=!0:t.id===nn.Attachments&&(e.attachmentsSeen=!0)}})}readContiguousElements(e,t){for(;e.remainingLength>=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F,A,M,D,N,O,L,z,U,q,W,j,K,X,$,G,Q,Y,J,Z,ee;const te=pn(e);if(!te)return!1;if(t&&t.includes(te.id))return!1;const{id:ie,size:re}=te,ne=e.filePos;switch(Dn(re),ie){case nn.DocType:this.isWebM="webm"===gn(e,re);break;case nn.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(ne,re)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case nn.SeekID:{const t=null==(i=this.currentSegment)?void 0:i.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=hn(e,re)}break;case nn.SeekPosition:{const t=null==(r=this.currentSegment)?void 0:r.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=hn(e,re)}break;case nn.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=hn(e,re),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case nn.Duration:if(!this.currentSegment)break;this.currentSegment.duration=yn(e,re);break;case nn.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:V(H({},Ct),{primary:!1}),trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(ne,re)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>{var t;return"decompress"!==(null==(t=e.data)?void 0:t.type)||e.scope!==Ln.Block||e.data.algorithm!==Un.HeaderStripping})&&(Pt._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===vn)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===wn)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===Sn)this.currentTrack.info.codec="vp8";else if(t===Pn)this.currentTrack.info.codec="vp9";else if(t===In)this.currentTrack.info.codec="av1";else if(t===xn){const e=this.currentTrack.codecPrivate?pe.decode(this.currentTrack.codecPrivate):"";Zi.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new Kn(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===Cn?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===Bn?this.currentTrack.info.codec="mp3":t===En?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=nr):t===_n?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Rn?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Fn?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===An?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Mn?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new Xn(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case nn.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=hn(e,re);break;case nn.TrackType:{if(!this.currentTrack)break;const t=hn(e,re);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:H({},Pe),alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case nn.FlagEnabled:if(!this.currentTrack)break;hn(e,re)||(this.currentTrack=null);break;case nn.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!hn(e,re);break;case nn.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!hn(e,re);break;case nn.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!hn(e,re);break;case nn.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!hn(e,re);break;case nn.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!hn(e,re);break;case nn.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!hn(e,re);break;case nn.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=gn(e,re);break;case nn.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=Tl(e,re);break;case nn.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=hn(e,re);break;case nn.Name:if(!this.currentTrack)break;this.currentTrack.name=kn(e,re);break;case nn.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=gn(e,re),Ge(this.currentTrack.languageCode)||(this.currentTrack.languageCode=We);break;case nn.LanguageBCP47:{if(!this.currentTrack)break;const t=gn(e,re).split("-")[0];this.currentTrack.languageCode=t||We,this.currentTrack.hasLanguageBcp47=!0}break;case nn.Video:if("video"!==(null==(s=null==(n=this.currentTrack)?void 0:n.info)?void 0:s.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.PixelWidth:if("video"!==(null==(o=null==(a=this.currentTrack)?void 0:a.info)?void 0:o.type))break;this.currentTrack.info.width=hn(e,re);break;case nn.PixelHeight:if("video"!==(null==(c=null==(l=this.currentTrack)?void 0:l.info)?void 0:c.type))break;this.currentTrack.info.height=hn(e,re);break;case nn.DisplayWidth:if("video"!==(null==(d=null==(u=this.currentTrack)?void 0:u.info)?void 0:d.type))break;this.currentTrack.info.displayWidth=hn(e,re);break;case nn.DisplayHeight:if("video"!==(null==(f=null==(h=this.currentTrack)?void 0:h.info)?void 0:f.type))break;this.currentTrack.info.displayHeight=hn(e,re);break;case nn.DisplayUnit:if("video"!==(null==(p=null==(m=this.currentTrack)?void 0:m.info)?void 0:p.type))break;this.currentTrack.info.displayUnit=hn(e,re);break;case nn.AlphaMode:if("video"!==(null==(k=null==(g=this.currentTrack)?void 0:g.info)?void 0:k.type))break;this.currentTrack.info.alphaMode=1===hn(e,re);break;case nn.Colour:if("video"!==(null==(b=null==(y=this.currentTrack)?void 0:y.info)?void 0:b.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.MatrixCoefficients:{if("video"!==(null==(v=null==(T=this.currentTrack)?void 0:T.info)?void 0:v.type))break;const t=hn(e,re),i=we[t];this.currentTrack.info.colorSpace.matrix=i}break;case nn.Range:{if("video"!==(null==(S=null==(w=this.currentTrack)?void 0:w.info)?void 0:S.type))break;const t=hn(e,re);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case nn.TransferCharacteristics:{if("video"!==(null==(I=null==(P=this.currentTrack)?void 0:P.info)?void 0:I.type))break;const t=hn(e,re),i=Te[t];this.currentTrack.info.colorSpace.transfer=i}break;case nn.Primaries:{if("video"!==(null==(C=null==(x=this.currentTrack)?void 0:x.info)?void 0:C.type))break;const t=hn(e,re),i=ye[t];this.currentTrack.info.colorSpace.primaries=i}break;case nn.Projection:if("video"!==(null==(E=null==(B=this.currentTrack)?void 0:B.info)?void 0:E.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.ProjectionPoseRoll:{if("video"!==(null==(R=null==(_=this.currentTrack)?void 0:_.info)?void 0:R.type))break;const t=-yn(e,re);try{this.currentTrack.info.rotation=le(t)}catch(se){}}break;case nn.Audio:if("audio"!==(null==(A=null==(F=this.currentTrack)?void 0:F.info)?void 0:A.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.SamplingFrequency:if("audio"!==(null==(D=null==(M=this.currentTrack)?void 0:M.info)?void 0:D.type))break;this.currentTrack.info.sampleRate=yn(e,re);break;case nn.Channels:if("audio"!==(null==(O=null==(N=this.currentTrack)?void 0:N.info)?void 0:O.type))break;this.currentTrack.info.numberOfChannels=hn(e,re);break;case nn.BitDepth:if("audio"!==(null==(z=null==(L=this.currentTrack)?void 0:L.info)?void 0:z.type))break;this.currentTrack.info.bitDepth=hn(e,re);break;case nn.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(ne,re)),this.currentCueTime=null;break;case nn.CueTime:this.currentCueTime=hn(e,re);break;case nn.CueTrackPositions:{if(null===this.currentCueTime)break;oe(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(ne,re)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case nn.CueTrack:{const t=null==(U=this.currentSegment)?void 0:U.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=hn(e,re)}break;case nn.CueClusterPosition:{const t=null==(q=this.currentSegment)?void 0:q.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;oe(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+hn(e,re)}break;case nn.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=hn(e,re);break;case nn.SimpleBlock:{if(!this.currentCluster)break;const t=dn(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Il(e),n=vl(e),s=n>>1&3;let a=!!(128&n);"audio"===(null==(W=i.track.info)?void 0:W.type)&&i.track.info.codec&&(a=!0);const o=Tl(e,re-(e.filePos-ne)),l=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:a,data:o,lacing:s,decoded:!l,postProcessed:!1,mainAdditional:null})}break;case nn.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(ne,re)),this.currentBlock=null;break;case nn.Block:{if(!this.currentCluster)break;const t=dn(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Il(e),n=vl(e)>>1&3,s=Tl(e,re-(e.filePos-ne)),a=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:s,lacing:n,decoded:!a,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case nn.BlockAdditions:this.readContiguousElements(e.slice(ne,re));break;case nn.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(ne,re)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case nn.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=Tl(e,re);break;case nn.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=hn(e,re);break;case nn.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=hn(e,re);break;case nn.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case nn.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(ne,re));break;case nn.Targets:this.readContiguousElements(e.slice(ne,re));break;case nn.TargetTypeValue:50!==hn(e,re)&&(this.currentTagTargetIsMovie=!1);break;case nn.TagTrackUID:case nn.TagEditionUID:case nn.TagChapterUID:case nn.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case nn.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(ne,re));break;case nn.TagName:this.currentSimpleTagName=kn(e,re);break;case nn.TagString:{if(!this.currentSimpleTagName)break;const t=kn(e,re);this.processTagValue(this.currentSimpleTagName,t)}break;case nn.TagBinary:{if(!this.currentSimpleTagName)break;const t=Tl(e,re);this.processTagValue(this.currentSimpleTagName,t)}break;case nn.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(ne,re));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(null!=t.raw||(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new xt(this.currentAttachedFile.fileData,null!=(j=this.currentAttachedFile.fileMediaType)?j:void 0,null!=(K=this.currentAttachedFile.fileName)?K:void 0,null!=(X=this.currentAttachedFile.fileDescription)?X:void 0)),(null==($=this.currentAttachedFile.fileMediaType)?void 0:$.startsWith("image/"))&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}null!=t.images||(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:null!=(G=this.currentAttachedFile.fileName)?G:void 0,description:null!=(Q=this.currentAttachedFile.fileDescription)?Q:void 0})}this.currentAttachedFile=null}break;case nn.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=BigInt("0");for(let r=0;r<t;r++)i<<=BigInt("8"),i+=BigInt(vl(e));return i})(e,re);break;case nn.FileName:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=kn(e,re);break;case nn.FileMediaType:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=gn(e,re);break;case nn.FileData:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=Tl(e,re);break;case nn.FileDescription:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=kn(e,re);break;case nn.ContentEncodings:if(!this.currentTrack)break;this.readContiguousElements(e.slice(ne,re)),this.currentTrack.decodingInstructions.sort((e,t)=>t.order-e.order);break;case nn.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Ln.Block,data:null},this.readContiguousElements(e.slice(ne,re)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case nn.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=hn(e,re);break;case nn.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=hn(e,re);break;case nn.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:Un.Zlib,settings:null},this.readContiguousElements(e.slice(ne,re));break;case nn.ContentCompAlgo:if("decompress"!==(null==(J=null==(Y=this.currentDecodingInstruction)?void 0:Y.data)?void 0:J.type))break;this.currentDecodingInstruction.data.algorithm=hn(e,re);break;case nn.ContentCompSettings:if("decompress"!==(null==(ee=null==(Z=this.currentDecodingInstruction)?void 0:Z.data)?void 0:ee.type))break;this.currentDecodingInstruction.data.settings=Tl(e,re);break;case nn.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=ne+re,!0}decodeBlockData(e,t){oe(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(oe(r.data),"decompress"===r.data.type)if(r.data.algorithm===Un.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i,r;if(!(null==(i=this.currentSegment)?void 0:i.metadataTags))return;const n=this.currentSegment.metadataTags;if(null!=n.raw||(n.raw={}),null!=(r=n.raw)[e]||(r[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":null!=n.title||(n.title=t);break;case"description":null!=n.description||(n.description=t);break;case"artist":null!=n.artist||(n.artist=t);break;case"album":null!=n.album||(n.album=t);break;case"album_artist":null!=n.albumArtist||(n.albumArtist=t);break;case"genre":null!=n.genre||(n.genre=t);break;case"comment":null!=n.comment||(n.comment=t);break;case"lyrics":null!=n.lyrics||(n.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||null!=n.date||(n.date=e)}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.trackNumber||(n.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.tracksTotal||(n.tracksTotal=r))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.discNumber||(n.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.discsTotal||(n.discsTotal=r))}}}getDurationFromMetadata(e){return Y(this,null,function*(){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){oe(r.trackBacking);const e=yield r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(null!=t?t:1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=null!=t?t:0,i})}}class jn{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getFirstPacket(e){return Y(this,null,function*(){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)})}intoTimescale(e){return He(e*this.internalTrack.segment.timestampFactor)}getPacket(e,t){return Y(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=Re(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1<t.blocks.length)return{blockIndex:i.blockIndex+1,correctBlockFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{blockIndex:0,correctBlockFound:!0}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}getKeyPacket(e,t){return Y(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=Ne(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)})}getNextKeyPacket(e,t){return Y(this,null,function*(){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return oe(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}fetchPacketInCluster(e,t,i){return Y(this,null,function*(){var r,n;if(-1===t)return null;const s=e.trackData.get(this.internalTrack.id).blocks[t];if(oe(s),s.decoded||(s.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,s.data),s.decoded=!0),!s.postProcessed){if("prores"===(null==(r=this.internalTrack.info)?void 0:r.codec)){if(!(s.data.length>=8&&105===s.data[4]&&99===s.data[5]&&112===s.data[6]&&102===s.data[7])){const e=new Uint8Array(s.data.length+8);me(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(s.data,8),s.data=e}}s.postProcessed=!0}const a=i.metadataOnly?br:s.data,o=s.timestamp/this.internalTrack.segment.timestampFactor,l=s.duration/this.internalTrack.segment.timestampFactor,c={};s.mainAdditional&&"video"===(null==(n=this.internalTrack.info)?void 0:n.type)&&this.internalTrack.info.alphaMode&&(c.alpha=i.metadataOnly?br:s.mainAdditional,c.alphaByteLength=s.mainAdditional.byteLength);const u=new Tr(a,s.isKeyFrame?"key":"delta",o,l,e.dataStartPos+t,s.data.byteLength,c);return this.packetToClusterLocation.set(u,{cluster:e,blockIndex:t}),u})}performClusterLookup(e,t,i,r,n){return Y(this,null,function*(){var s,a,o,l;const{demuxer:c,segment:u}=this.internalTrack;let d=null,h=null,f=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,n);-1!==i&&(h=e,f=i)}const m=Re(this.internalTrack.cuePoints,i,e=>e.time),p=-1!==m?this.internalTrack.cuePoints[m]:null,g=Re(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),k=-1!==g?this.internalTrack.clusterPositionCache[g]:null,y=Math.max(null!=(s=null==p?void 0:p.clusterPosition)?s:0,null!=(a=null==k?void 0:k.elementStartPos)?a:0)||null;let b;for(e?null===y||e.elementStartPos>=y?(b=e.elementEndPos,d=e):b=y:b=null!=y?y:u.clusterSeekStartPos;null===u.elementEndPos||b<=u.elementEndPos-2;){if(d){const e=d.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=c.reader.requestSliceRange(b,2,cn);if(ct(e)&&(e=yield e),!e)break;const i=b,s=pn(e);if(!s||!on.includes(s.id)&&s.id!==nn.Void){const e=yield Tn(c.reader,i,on,Math.min(null!=(o=u.elementEndPos)?o:1/0,i+Hn));if(e){b=e;continue}break}const a=s.id;let l=s.size;const m=e.filePos;if(a===nn.Cluster){d=yield c.readCluster(i,u),l=d.elementEndPos-m;const{blockIndex:e,correctBlockFound:r}=t(d);if(r)return this.fetchPacketInCluster(d,e,n);-1!==e&&(h=d,f=e)}if(void 0===l){oe(a!==nn.Cluster);l=(yield bn(c.reader,m,ln,u.elementEndPos)).pos-m}const p=m+l;if(null===u.elementEndPos){let e=c.reader.requestSliceRange(p,2,cn);if(ct(e)&&(e=yield e),!e)break;if(fn(e)===nn.Segment){u.elementEndPos=p;break}}b=p}if(p&&(!h||h.elementStartPos<p.clusterPosition)){const e=this.internalTrack.cuePoints[m-1];oe(!e||e.time<p.time);const i=null!=(l=null==e?void 0:e.time)?l:-1/0;return this.performClusterLookup(null,t,i,r,n)}return h?this.fetchPacketInCluster(h,f,n):null})}}class Kn extends jn{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.info.rotation}getColorSpace(){return Y(this,null,function*(){var e,t,i,r;const n=yield this.getDecoderConfig();return n?{primaries:null==(e=n.colorSpace)?void 0:e.primaries,transfer:null==(t=n.colorSpace)?void 0:t.transfer,matrix:null==(i=n.colorSpace)?void 0:i.matrix,fullRange:null==(r=n.colorSpace)?void 0:r.fullRange}:this.internalTrack.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return this.internalTrack.info.alphaMode||"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)})}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e,t,i,r,n;let s=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(s=yield this.getFirstPacket({}));const a={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&s?$t(s.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&s?ni(s.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&s?gi(s.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&s?yi(s.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&s?bi(s.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!Se(this.internalTrack.info.colorSpace)){const n=ir(a);null!=(e=this.internalTrack.info.colorSpace).primaries||(e.primaries=n.primaries),null!=(t=this.internalTrack.info.colorSpace).transfer||(t.transfer=n.transfer),null!=(i=this.internalTrack.info.colorSpace).matrix||(i.matrix=n.matrix),null!=(r=this.internalTrack.info.colorSpace).fullRange||(r.fullRange=n.fullRange)}const o={codec:tr(a),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(n=this.internalTrack.info.codecDescription)?n:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class Xn extends jn{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Wi(e.data)}return{codec:rr({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const $n=(e,t,i,r=null)=>Y(null,null,function*(){const n=q(2,16);let s=t;for(;null===i||s<i;){const t=null!==i?Math.min(n,i-s):n;let a=e.requestSliceRange(s,4,t);if(ct(a)&&(a=yield a),!a||a.length<4)break;for(;a.remainingLength>=4;){const t=a.filePos,i=Cl(a),n=null!==e.fileSize?e.fileSize-s:null,o=fr(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&kr(o.header.channel)===kr(r.channel)))return{header:o.header,startPos:s};a.filePos=t+o.bytesAdvanced,s=a.filePos}}return null});class Gn extends yr{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new xe,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new Qn(this)]}))()})}advanceReader(){return Y(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=Xl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=yield $n(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=hr(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(ct(r)&&(r=yield r),r){const n=Cl(r);if(n===ur||n===dr){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(ct(t)&&(t=yield t),t){const e=Tl(t,12),i=me(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&pr.FrameCount?i.getUint32(4,!1):null,fileSize:r&pr.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const n=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:n,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame})}getMimeType(){return Y(this,null,function*(){return"audio/mpeg"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=!0;let n=this.reader.requestSlice(i.filePos,r.size);if(ct(n)&&(n=yield n),!n)break;$l(n,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=Wl){let e=this.reader.requestSlice(this.reader.fileSize-Wl,Wl);ct(e)&&(e=yield e),oe(e);"TAG"===Nl(e,3)&&jl(e,this.metadataTags)}return this.metadataTags}finally{e()}})}}class Qn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){const e=this.demuxer;if(oe(null!==e.firstFrameHeader),oe(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,n=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(n<<t):2===i?144*r/n:12*r/n*4),a=(e.reader.fileSize-e.firstFrameHeaderPos)/s;return Math.round(a)*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}var t,i,r,n;return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getCodec(){return"mp3"}getInternalCodecId(){return null}getNumberOfChannels(){return oe(this.demuxer.firstFrameHeader),kr(this.demuxer.firstFrameHeader.channel)}getSampleRate(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.firstFrameHeader),{codec:"mp3",numberOfChannels:kr(this.demuxer.firstFrameHeader.channel),sampleRate:this.demuxer.firstFrameHeader.sampleRate}})}getPacketAtIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.dataSize)}return new Tr(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=_e(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);yield this.demuxer.advanceReader()}}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Yn=1399285583,Jn=new Uint32Array(256);for(let Bc=0;Bc<256;Bc++){let e=Bc<<24;for(let t=0;t<8;t++)e=2147483648&e?e<<1^79764919:e<<1;Jn[Bc]=e>>>0&4294967295}const Zn=e=>{const t=me(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let n=0;n<e.length;n++){const t=e[n];r=(r<<8^Jn[r>>>24^t])>>>0}return t.setUint32(22,i,!0),r},es=(e,t,i)=>{let r=0,n=null;if(e.length>0)if("vorbis"===t.codec){oe(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,a=(e[0]&s)>>1;if(a>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let o=i;const l=t.vorbisInfo.modeBlockflags[a];if(n=t.vorbisInfo.blocksizes[l],1===l){const i=1+(1|s),r=e[0]&i?1:0;o=t.vorbisInfo.blocksizes[r]}r=null!==o?o+n>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:Ti[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:n}},ts=27,is=282,rs=e=>{const t=e.filePos;if(Bl(e)!==Yn)return null;e.skip(1);const i=vl(e),r=Al(e),n=Bl(e),s=Bl(e),a=Bl(e),o=vl(e),l=new Uint8Array(o);for(let d=0;d<o;d++)l[d]=vl(e);const c=27+o,u=l.reduce((e,t)=>e+t,0);return{headerStartPos:t,totalSize:c+u,dataStartPos:t+c,dataSize:u,headerType:i,granulePosition:r,serialNumber:n,sequenceNumber:s,checksum:a,lacingValues:l}},ns=(e,t)=>{for(;e.filePos<t-3;){const t=Bl(e),i=79;if((255&t)===i||(t>>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===Yn)return!0;e.skip(1)}}return!1};class ss extends yr{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,ts,is);if(ct(t)&&(t=yield t),!t)break;const i=rs(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=yield this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?yield this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&(yield this.readOpusMetadata(e,t)),null!==t.codecInfo.codec&&this.trackBackings.push(new as(t,this)))}}))()})}readVorbisMetadata(e,t){return Y(this,null,function*(){let i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=yield this.findNextPacketStart(r),!i)return;const n=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!n)return;if(3!==r.data[0]||5!==n.data[0])return;const s=[],a=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};a(e.data.length),a(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+n.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(n.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=n;const l=me(e.data);t.numberOfChannels=l.getUint8(11),t.sampleRate=l.getUint32(12,!0);const c=l.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&c),1<<(c>>4)],modeBlockflags:vi(n.data).modeBlockflags},Ii(r.data.subarray(7),this.metadataTags)})}readOpusMetadata(e,t){return Y(this,null,function*(){const i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const n=(e=>{const t=me(e),i=t.getUint8(9),r=t.getUint16(10,!0),n=t.getUint32(12,!0),s=t.getInt16(16,!0),a=t.getUint8(18);let o=null;return a&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:n,outputGain:s,channelMappingFamily:a,channelMappingTable:o}})(e.data);t.numberOfChannels=n.outputChannelCount,t.sampleRate=nr,t.codecInfo.opusInfo={preSkip:n.preSkip},Ii(r.data.subarray(8),this.metadataTags)})}readPacket(e,t){return Y(this,null,function*(){oe(t<e.lacingValues.length);let i=0;for(let u=0;u<t;u++)i+=e.lacingValues[u];let r=e,n=i,s=t;const a=[];e:for(;;){let t=this.reader.requestSlice(r.dataStartPos,r.dataSize);ct(t)&&(t=yield t),oe(t);const o=Tl(t,r.dataSize);for(;;){if(s===r.lacingValues.length){a.push(o.subarray(i,n));break}const e=r.lacingValues[s];if(n+=e,e<255){a.push(o.subarray(i,n));break e}s++}let l=r.headerStartPos+r.totalSize;for(;;){let t=this.reader.requestSliceRange(l,ts,is);if(ct(t)&&(t=yield t),!t)return null;const i=rs(t);if(!i)return null;if(r=i,r.serialNumber===e.serialNumber)break;l=r.headerStartPos+r.totalSize}i=0,n=0,s=0}const o=a.reduce((e,t)=>e+t.length,0);if(0===o)return null;const l=new Uint8Array(o);let c=0;for(let e=0;e<a.length;e++){const t=a[e];l.set(t,c),c+=t.length}return{data:l,endPage:r,endSegmentIndex:s}})}findNextPacketStart(e){return Y(this,null,function*(){if(e.endSegmentIndex<e.endPage.lacingValues.length-1)return{startPage:e.endPage,startSegmentIndex:e.endSegmentIndex+1};if(!!(4&e.endPage.headerType))return null;let t=e.endPage.headerStartPos+e.endPage.totalSize;for(;;){let i=this.reader.requestSliceRange(t,ts,is);if(ct(i)&&(i=yield i),!i)return null;const r=rs(i);if(!r)return null;if(r.serialNumber===e.endPage.serialNumber)return{startPage:r,startSegmentIndex:0};t=r.headerStartPos+r.totalSize}})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();return(e=>{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(yield Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})))).filter(Boolean)})})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}class as{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new xe,this.internalSampleRate="opus"===e.codecInfo.codec?nr:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return oe(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}getDecoderConfig(){return Y(this,null,function*(){var e;return oe(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:null!=(e=this.bitstream.description)?e:void 0}})}getName(){return null}getLanguageCode(){return We}getDisposition(){return V(H({},Ct),{primary:!1})}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(oe(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:n}=es(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new Tr(i.metadataOnly?br:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:n}),s}getFirstPacket(e){return Y(this,null,function*(){oe(this.bitstream.lastMetadataPacket);const t=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(oe(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=yield this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=yield this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const n=i.timestampInSamples+i.durationInSamples,s=yield this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:n,vorbisLastBlocksize:i.vorbisBlockSize},t)})}getPacket(e,t){return Y(this,null,function*(){var i,r;if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const n=He(e*this.internalSampleRate);if(0===n)return this.getFirstPacket(t);if(n<0)return null;oe(this.bitstream.lastMetadataPacket);const s=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!s)return null;let a=s.startPage,o=this.demuxer.reader.fileSize;const l=[a];e:for(;a.headerStartPos+a.totalSize<o;){const e=a.headerStartPos,t=Math.floor((e+o)/2);let i=t;for(;;){const e=Math.min(i+65307,o-ts);let r=this.demuxer.reader.requestSlice(i,e-i);ct(r)&&(r=yield r),oe(r);if(!ns(r,e)){o=t+ts;continue e}let s=this.demuxer.reader.requestSliceRange(r.filePos,ts,is);ct(s)&&(s=yield s),oe(s);const c=rs(s);oe(c);let u=!1;if(c.serialNumber===this.bitstream.serialNumber)u=!0;else{let e=this.demuxer.reader.requestSlice(c.headerStartPos,c.totalSize);ct(e)&&(e=yield e),oe(e);const t=Tl(e,c.totalSize);u=Zn(t)===c.checksum}if(!u){i=c.headerStartPos+4;continue}if(u&&c.serialNumber!==this.bitstream.serialNumber){i=c.headerStartPos+c.totalSize;continue}if(!(-1===c.granulePosition)){this.granulePositionToTimestampInSamples(c.granulePosition)>n?o=c.headerStartPos:(a=c,l.push(c));continue e}i=c.headerStartPos+c.totalSize}}let c=s.startPage;for(const e of l){if(e.granulePosition===a.granulePosition)break;(!c||e.headerStartPos>c.headerStartPos)&&(c=e)}let u=c;const d=[u];for(;u.serialNumber!==this.bitstream.serialNumber||u.granulePosition!==a.granulePosition;){const e=u.headerStartPos+u.totalSize;let t=this.demuxer.reader.requestSliceRange(e,ts,is);ct(t)&&(t=yield t),oe(t);const i=rs(t);oe(i),u=i,u.serialNumber===this.bitstream.serialNumber&&d.push(u)}oe(-1!==u.granulePosition);let h,f,m=null,p=u,g=0;if(u.headerStartPos===s.startPage.headerStartPos)h=this.granulePositionToTimestampInSamples(0),f=!0,m=0;else{h=0,f=!1;for(let t=u.lacingValues.length-1;t>=0;t--){if(u.lacingValues[t]<255){m=t+1;break}}if(null===m)throw new Error("Invalid page with granule position: no packets end on this page.");g=m-1;const e={data:br,endPage:p,endSegmentIndex:g};if(yield this.demuxer.findNextPacketStart(e)){const e=ls(d,u,m);oe(e);const t=os(d,e.page,e.segmentIndex);t&&(u=t.page,m=t.segmentIndex)}else for(;;){const e=ls(d,u,m);if(!e)break;const t=os(d,e.page,e.segmentIndex);if(!t)break;if(u=t.page,m=t.segmentIndex,e.page.headerStartPos!==p.headerStartPos){p=e.page,g=e.segmentIndex;break}}}let k=null,y=null;for(;null!==u;){oe(null!==m);const e=yield this.demuxer.readPacket(u,m);if(!e)break;if(!(u.headerStartPos===s.startPage.headerStartPos&&m<s.startSegmentIndex)){let s=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:h,vorbisLastBlocksize:null!=(i=null==y?void 0:y.vorbisBlockSize)?i:null},t);oe(s);let a=this.encodedPacketToMetadata.get(s);if(oe(a),f||e.endPage.headerStartPos!==p.headerStartPos||e.endSegmentIndex!==g?h+=a.durationInSamples:(h=this.granulePositionToTimestampInSamples(u.granulePosition),f=!0,s=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:h-a.durationInSamples,vorbisLastBlocksize:null!=(r=null==y?void 0:y.vorbisBlockSize)?r:null},t),oe(s),a=this.encodedPacketToMetadata.get(s),oe(a)),k=s,y=a,f&&(Math.max(h,0)>n||Math.max(a.timestampInSamples,0)===n))break}const a=yield this.demuxer.findNextPacketStart(e);if(!a)break;u=a.startPage,m=a.startSegmentIndex}return k})}getPacketSequential(e,t){return Y(this,null,function*(){const i=yield this.sequentialScanMutex.acquire();try{const i=He(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=Re(this.sequentialScanCache,i,e=>e.timestampInSamples);let n;if(-1!==r){const e=this.sequentialScanCache[r];n=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else n=yield this.getFirstPacket(t);let s=0;for(;n&&n.timestamp<e;){const i=yield this.getNextPacket(n,t);if(!i||i.timestamp>e)break;if(n=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(n);oe(e),this.sequentialScanCache.length>0&&oe(ce(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return n}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const os=(e,t,i)=>{let r=t,n=i;e:for(;;){for(n--;n>=0;n--){if(r.lacingValues[n]<255){n++;break e}}oe(-1===n);if(!(1&r.headerType)){n=0;break}const t=De(e,e=>e.headerStartPos<r.headerStartPos);if(!t)return null;r=t,n=r.lacingValues.length}if(oe(-1!==n),n===r.lacingValues.length){const t=e[e.indexOf(r)+1];oe(t),r=t,n=0}return{page:r,segmentIndex:n}},ls=(e,t,i)=>{if(i>0)return{page:t,segmentIndex:i-1};const r=De(e,e=>e.headerStartPos<t.headerStartPos);return r?{page:r,segmentIndex:r.lacingValues.length-1}:null};var cs,us;(us=cs||(cs={}))[us.PCM=1]="PCM",us[us.IEEE_FLOAT=3]="IEEE_FLOAT",us[us.ALAW=6]="ALAW",us[us.MULAW=7]="MULAW",us[us.EXTENSIBLE=65534]="EXTENSIBLE";class ds extends yr{constructor(e){super(e),this.metadataPromise=null,this.dataStart=-1,this.dataSize=-1,this.audioInfo=null,this.trackBackings=[],this.lastKnownPacketIndex=0,this.metadataTags={},this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){var e,t;let i=this.reader.requestSlice(0,12);ct(i)&&(i=yield i),oe(i);const r=Nl(i,4),n="RIFX"!==r,s="RF64"===r,a=xl(i,n);let o=s?this.reader.fileSize:Math.min(a+8,null!=(e=this.reader.fileSize)?e:1/0);if("WAVE"!==Nl(i,4))throw new Error("Invalid WAVE file - wrong format");let l=0,c=null,u=i.filePos;for(;null===o||u<o;){let e=this.reader.requestSlice(u,8);if(ct(e)&&(e=yield e),!e)break;const i=Nl(e,4),r=xl(e,n),a=e.filePos;if(s&&0===l&&"ds64"!==i)throw new Error('Invalid RF64 file: First chunk must be "ds64".');if("fmt "===i)yield this.parseFmtChunk(a,r,n);else if("data"===i){if(null!=c||(c=r),this.dataStart=e.filePos,this.dataSize=Math.min(c,(null!=o?o:1/0)-this.dataStart),null===this.reader.fileSize)break}else if("ds64"===i){let e=this.reader.requestSlice(a,r);if(ct(e)&&(e=yield e),!e)break;const i=_l(e,n);c=_l(e,n),o=Math.min(i+8,null!=(t=this.reader.fileSize)?t:1/0)}else"LIST"===i?yield this.parseListChunk(a,r,n):"ID3 "!==i&&"id3 "!==i||(yield this.parseId3Chunk(a,r));u=a+r+(1&r),l++}if(!this.audioInfo)throw new Error('Invalid WAVE file - missing "fmt " chunk');if(-1===this.dataStart)throw new Error('Invalid WAVE file - missing "data" chunk');const d=this.audioInfo.blockSizeInBytes;this.dataSize=Math.floor(this.dataSize/d)*d,this.trackBackings.push(new fs(this))}))()})}parseFmtChunk(e,t,i){return Y(this,null,function*(){let r=this.reader.requestSlice(e,t);if(ct(r)&&(r=yield r),!r)return;let n=wl(r,i);const s=wl(r,i),a=xl(r,i);r.skip(4);const o=wl(r,i);let l;if(l=14===t?8:wl(r,i),t>=18&&357!==n){const e=wl(r,i),s=t-18;if(Math.min(s,e)>=22&&n===cs.EXTENSIBLE){r.skip(6);const e=Tl(r,16);n=e[0]|e[1]<<8}}if(n!==cs.MULAW&&n!==cs.ALAW||(l=8),n!==cs.PCM&&n!==cs.IEEE_FLOAT&&n!==cs.ALAW&&n!==cs.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${n}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(n===cs.PCM&&![8,16,24,32].includes(l))throw new Error(`Unsupported WAVE PCM bit depth (${l}). Only 8, 16, 24, and 32 bits are supported.`);if(n===cs.IEEE_FLOAT&&![32,64].includes(l))throw new Error(`Unsupported WAVE float bit depth (${l}). Only 32 and 64 bits are supported.`);this.audioInfo={format:n,numberOfChannels:s,sampleRate:a,sampleSizeInBytes:Math.ceil(l/8),blockSizeInBytes:o}})}parseListChunk(e,t,i){return Y(this,null,function*(){var r,n,s,a,o,l,c,u,d,h,f;let m=this.reader.requestSlice(e,t);if(ct(m)&&(m=yield m),!m)return;const p=Nl(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=Nl(m,4),t=xl(m,i),p=Tl(m,t);let k=0;for(let i=0;i<p.length&&0!==p[i];i++)k++;const y=String.fromCharCode(...p.subarray(0,k));switch(null!=(r=this.metadataTags).raw||(r.raw={}),this.metadataTags.raw[e]=y,e){case"INAM":case"TITL":null!=(n=this.metadataTags).title||(n.title=y);break;case"TIT3":null!=(s=this.metadataTags).description||(s.description=y);break;case"IART":null!=(a=this.metadataTags).artist||(a.artist=y);break;case"IPRD":null!=(o=this.metadataTags).album||(o.album=y);break;case"IPRT":case"ITRK":case"TRCK":{const e=y.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=(l=this.metadataTags).trackNumber||(l.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(c=this.metadataTags).tracksTotal||(c.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||null!=(u=this.metadataTags).date||(u.date=e)}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&(null!=(d=this.metadataTags).date||(d.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":null!=(h=this.metadataTags).genre||(h.genre=y);break;case"ICMT":case"CMNT":case"COMM":null!=(f=this.metadataTags).comment||(f.comment=y)}g+=8+t+(1&t)}})}parseId3Chunk(e,t){return Y(this,null,function*(){let i=this.reader.requestSlice(e,t);if(ct(i)&&(i=yield i),!i)return;const r=Xl(i);if(r){const n=t-Hl;if(r.size=Math.min(r.size,n),r.size>0){const t=i.slice(e+Hl,r.size);$l(t,r,this.metadataTags)}}})}getCodec(){if(oe(this.audioInfo),this.audioInfo.format===cs.MULAW)return"ulaw";if(this.audioInfo.format===cs.ALAW)return"alaw";if(this.audioInfo.format===cs.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===cs.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}oe(!1)}getMimeType(){return Y(this,null,function*(){return"audio/wav"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}const hs=2048;class fs{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.format}getDecoderConfig(){return Y(this,null,function*(){const e=this.demuxer.getCodec();return e?(oe(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null})}getNumberOfChannels(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return oe(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getDisposition(){return H({},Ct)}getPacketAtIndex(e,t){return Y(this,null,function*(){oe(e>=0),oe(this.demuxer.audioInfo);const i=e*hs*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(hs*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(ct(e)&&(e=yield e),!e)return null}let n;if(t.metadataOnly)n=br;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);ct(e)&&(e=yield e),oe(e),n=Tl(e,r)}const s=e*hs/this.demuxer.audioInfo.sampleRate,a=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new Tr(n,"key",s,a,e,r)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getPacket(e,t){return Y(this,null,function*(){oe(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/hs,(this.demuxer.dataSize-1)/(hs*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=yield this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;oe(null===this.demuxer.reader.fileSize);let n=yield this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;n;){const e=yield this.getNextPacket(n,t);if(!e)break;n=e}return n})}getNextPacket(e,t){oe(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/hs);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const ms=e=>{const t=e.filePos,i=Tl(e,9),r=new Bt(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const n=r.readBits(1),s=r.readBits(2)+1,a=r.readBits(4);if(15===a)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const l=r.readBits(13);r.skipBits(11);const c=r.readBits(2)+1;if(1!==c)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===n?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:a,channelConfiguration:o,frameLength:l,numberOfAacFrames:c,crcCheck:u,startPos:t}},ps=1024;class gs extends yr{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new xe,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();oe(this.firstFrameHeader),this.trackBackings=[new ks(this)]}))()})}advanceReader(){return Y(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=Xl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=ms(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=Et[t.samplingFrequencyIndex];oe(void 0!==i);const r=ps/i,n={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(n),this.nextTimestampInSamples+=ps,this.lastLoadedPos=t.startPos+t.frameLength})}getMimeType(){return Y(this,null,function*(){return"audio/aac"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,Hl);if(ct(t)&&(t=yield t),!t)break;const i=Xl(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(ct(r)&&(r=yield r),!r)break;$l(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}})}}class ks{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/ps}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getCodec(){return"aac"}getInternalCodecId(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){oe(this.demuxer.firstFrameHeader);const e=_t[this.demuxer.firstFrameHeader.channelConfiguration];return oe(void 0!==e),e}getSampleRate(){oe(this.demuxer.firstFrameHeader);const e=Et[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return oe(void 0!==e),e}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}})}getPacketAtIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.dataSize)}return new Tr(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=_e(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);yield this.demuxer.advanceReader()}}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}class ys extends yr{constructor(e){super(e),this.loadedSamples=[],this.metadataPromise=null,this.trackBacking=null,this.metadataTags={},this.audioInfo=null,this.lastLoadedPos=null,this.blockingBit=null,this.readingMutex=new xe,this.lastSampleLoaded=!1,this.reader=e._reader}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),oe(this.trackBacking),[this.trackBacking]})}getMimeType(){return Y(this,null,function*(){return"audio/flac"})}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){var e;let t=0;for(;;){let e=this.reader.requestSlice(t,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const i=Xl(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);ct(r)&&(r=yield r),oe(r),$l(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||t<this.reader.fileSize;){let i=this.reader.requestSlice(t,4);if(ct(i)&&(i=yield i),t+=4,null===i)throw new Error(`Metadata block at position ${t} is too small! Corrupted file.`);oe(i);const r=vl(i),n=Pl(i),s=0!==(128&r);switch(127&r){case Si.STREAMINFO:{let e=this.reader.requestSlice(t,n);if(ct(e)&&(e=yield e),oe(e),null===e)throw new Error(`StreamInfo block at position ${t} is too small! Corrupted file.`);const i=Tl(e,34),r=new Bt(i),s=r.readBits(16),a=r.readBits(16),o=r.readBits(24),l=r.readBits(24),c=r.readBits(20),u=r.readBits(3)+1;r.readBits(5);const d=r.readBits(36);r.skipBits(128);const h=new Uint8Array(42);h.set(new Uint8Array([102,76,97,67]),0),h.set(new Uint8Array([128,0,0,34]),4),h.set(i,8),this.audioInfo={numberOfChannels:u,sampleRate:c,totalSamples:d,minimumBlockSize:s,maximumBlockSize:a,minimumFrameSize:o,maximumFrameSize:l,description:h},this.trackBacking=new bs(this);break}case Si.VORBIS_COMMENT:{let e=this.reader.requestSlice(t,n);ct(e)&&(e=yield e),oe(e),Ii(Tl(e,n),this.metadataTags);break}case Si.PICTURE:{let i=this.reader.requestSlice(t,n);ct(i)&&(i=yield i),oe(i);const r=Cl(i),s=Cl(i),a=pe.decode(Tl(i,s)),o=Cl(i),l=pe.decode(Tl(i,o));i.skip(16);const c=Cl(i),u=Tl(i,c);null!=(e=this.metadataTags).images||(e.images=[]),this.metadataTags.images.push({data:u,mimeType:a,kind:3===r?"coverFront":4===r?"coverBack":"unknown",description:l});break}}if(t+=n,s){this.lastLoadedPos=t;break}}if(!this.audioInfo)throw new Error("Missing STREAMINFO metadata block! Corrupted FLAC file.")}))()})}readNextFlacFrame(e){return Y(this,arguments,function*({startPos:e,isFirstPacket:t}){oe(this.audioInfo);const i=this.audioInfo.maximumBlockSize*this.audioInfo.numberOfChannels*4+16+2,r=this.audioInfo.minimumFrameSize||10,n=(this.audioInfo.maximumFrameSize||i)+16,s=yield this.reader.requestSliceRange(e,16,n);if(!s)return null;const a=this.readFlacFrameHeader({slice:s,isFirstPacket:t});if(!a)return null;for(s.filePos=e+r;;){if(s.filePos>s.end-6)return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:s.end-e,isLastFrame:!0};if(255===vl(s)){const t=s.filePos;if(vl(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-a.num!==1){s.filePos=t;continue}}else if(r.num-a.num!==a.blockSize){s.filePos=t;continue}return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:i,isLastFrame:!1}}}})}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=Tl(e,4),n=new Bt(r);if(32764!==n.readBits(15))return null;if(null===this.blockingBit){oe(t);const e=n.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){oe(!t);if(1!==n.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");oe(!t);if(0!==n.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*q(2,e):6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?q(2,e):null)(n.readBits(4));if(!s)return null;oe(this.audioInfo);const a=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(n.readBits(4),this.audioInfo.sampleRate);if(!a)return null;n.readBits(4),n.readBits(3);if(0!==n.readBits(1))return null;const o=(e=>{let t=0;const i=new Bt(Tl(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],n=t-1,s=new Bt(Tl(e,n)),a=8-t-1;for(let o=0;o<a;o++)r.unshift(i.readBits(1));for(let o=0;o<n;o++)for(let e=0;e<8;e++){const t=s.readBits(1);e<2||r.unshift(t)}return r.reduce((e,t,i)=>e|t<<i,0)})(e),l=((e,t)=>"uncommon-u16"===t?Sl(e)+1:"uncommon-u8"===t?vl(e)+1:"number"===typeof t?t:(Oe(t),void oe(!1)))(e,s),c=((e,t)=>"uncommon-u16"===t?Sl(e):"uncommon-u16-10"===t?10*Sl(e):"uncommon-u8"===t?vl(e):"number"===typeof t?t:null)(e,a);if(null===c)return null;if(c!==this.audioInfo.sampleRate)return null;const u=e.filePos-i,d=vl(e);e.skip(-u),e.skip(-1);const h=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(Tl(e,u));return d!==h?null:{num:o,blockSize:l,sampleRate:c}}advanceReader(){return Y(this,null,function*(){yield this.readMetadata(),oe(null!==this.lastLoadedPos),oe(this.audioInfo);const e=this.lastLoadedPos,t=yield this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)})}}class bs{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return We}getTimeResolution(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return oe(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}})}getPacket(e,t){return Y(this,null,function*(){if(oe(this.demuxer.audioInfo),e<0)return null;const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){yield this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],n=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(n+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);yield this.demuxer.advanceReader()}}finally{i()}})}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}getPacketAtIndex(e,t){return Y(this,null,function*(){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.byteSize)}oe(this.demuxer.audioInfo);const n=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new Tr(r,"key",n,s,e,i.byteSize)})}getFirstPacket(e){return Y(this,null,function*(){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)})}}const Ts=9e4,vs=q(2,33),ws=188,Ss="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",Ps=new Set([133,134,162]),Is=new Set;class xs extends yr{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=this.reader.requestSlice(0,205);ct(e)&&(e=yield e),oe(e);const t=Tl(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=ws;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,n=!1,s=!1;for(;;){const e=yield this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=yield this.readSection(i,!0,!s);if(!t)break;const a=3,o=32;let l=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i);l=2===e.readBits(8)}}if(0!==t.pid||n)if(t.pid!==r&&!l||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=Bs(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(yield this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new As(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,yield r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=$t(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];oe(t);const i=Jt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const n=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;n>0&&s>0&&(n>s?(e.info.squarePixelWidth=Math.round(e.info.width*n/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/n))),e.info.colorSpace={primaries:ye[i.colourPrimaries],transfer:Te[i.transferCharacteristics],matrix:we[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=ni(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===Lt.SPS_NUT).nalUnits[0];oe(t);const i=ri(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:ye[i.colourPrimaries],transfer:Te[i.transferCharacteristics],matrix:we[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:tr({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(yield r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=yl.tempFromBytes(r.suppliedPacket.data),i=ms(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=_t[i.channelConfiguration],e.info.sampleRate=Et[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=Cl(yl.tempFromBytes(r.suppliedPacket.data)),i=fr(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=kr(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=Ci(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=xi[t.acmod]+t.lfeon,e.info.sampleRate=Mt[t.fscod]}else if("eac3"===e.info.codec){const t=_i(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=Ri(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Fi(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=qi(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:rr({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const n=e.readBits(10),l=e.pos+8*n;let c=!1;for(;e.pos<l;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(5===t&&i>=4){const t=e.readBits(32);c||(c=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=l;8*(r+a)-e.pos>o;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),n=e.pos+8*r;let s=!1,a=!1,o=!1;for(;e.pos<n;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(106===t)s=!0;else if(122===t||204===t)a=!0;else if(123===t)o=!0;else if(5===t&&i>=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let l=null;const u=c&&Ps.has(t)?130:t;switch(u){case 27:case 36:l={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",l={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:a?l={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?l={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(l={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:Is.has(t)||(Pt._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),Is.add(t))}l&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:l,referencePesPackets:[]})}s=!0}else{const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+a)-e.pos>o;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");n=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!n)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const a of this.elementaryStreams)a.initialized&&("video"===a.info.type?this.trackBackingEntries.push(new _s(a)):this.trackBackingEntries.push(new Rs(a)))}))()})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackingEntries})}getMetadataTags(){return Y(this,null,function*(){return{}})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(yield Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null}))))})}readSection(e,t,i=!1){return Y(this,null,function*(){let r=e,n=e;const s=[];let a,o=0,l=null,c=!0,u=0;for(;;){const e=yield this.readPacket(n);if(n+=this.packetStride,!e)break;if(l){if(e.pid!==l.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;l=e}const a=!!(2&e.adaptationFieldControl),d=!!(1&e.adaptationFieldControl);let h=0;if(a&&(h=1+e.body[0],e===l&&h>1&&(u=e.body[1]>>6&1)),d&&(0===h?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(h)),o+=e.body.byteLength-h)),r=n,!t&&o>=64){c=!1;break}if(-1!==_e(this.sectionEndPositions,r,e=>e)){c=!1;break}}if(c){const e=Re(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!l)return null;if(1===s.length)a=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);a=new Uint8Array(e);let t=0;for(const i of s)a.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:l.pid,payload:a,randomAccessIndicator:u}})}readPacketHeader(e){return Y(this,null,function*(){let t=this.reader.requestSlice(e,4);if(ct(t)&&(t=yield t),!t)return null;if(71!==vl(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=Sl(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:vl(t)>>4&3}})}readPacket(e){return Y(this,null,function*(){let t=this.reader.requestSlice(e,ws);if(ct(t)&&(t=yield t),!t)return null;const i=Tl(t,ws);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}})}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=vs-t?-vs:vs}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e<t?e+i:e}}const Cs=(e,t,i)=>{if(t.payload.byteLength<3)return null;const r=new Bt(t.payload);if(1!==r.readBits(24))return null;const n=r.readBits(8);if(r.skipBits(16),188===n||190===n||191===n||240===n||241===n||255===n||242===n||248===n)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let a=null;if(2===s||3===s)a=0,r.skipBits(4),a+=r.readBits(3)*(1<<30),r.skipBits(1),a+=32768*r.readBits(15),r.skipBits(1),a+=r.readBits(15),a=e.normalizeTimestamp(a);else if(i)throw new Error(Ss);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:a,randomAccessIndicator:t.randomAccessIndicator}},Bs=(e,t,i)=>{oe(null!==t.endPos);const r=Cs(e,t,i);if(!r)return null;const n=new Bt(t.payload);n.skipBits(32);const s=n.readBits(16);n.skipBits(16);const a=n.readBits(8),o=n.pos+8*a;n.pos=o;const l=o/8;oe(Number.isInteger(l));const c=t.payload.subarray(l,s>0?6+s:t.payload.byteLength);return V(H({},r),{data:c})};class Es{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,oe(r instanceof Es),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return We}getDisposition(){return V(H({},Ct),{primary:!1})}getTimeResolution(){return Ts}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new Tr(i.metadataOnly?br:e.data,r,e.pts/Ts,Math.max(t/Ts,0),e.sequenceNumber,e.data.byteLength)}getFirstPacket(e){return Y(this,null,function*(){const t=this.elementaryStream.firstSection;oe(t);const i=Bs(this.elementaryStream.demuxer,t,!0);oe(i);const r=new As(this.elementaryStream,i),n=new Ms(this,r),s=yield n.readNext();if(!s)return null;const a=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(a,n),this.packetSectionStarts.set(a,s.packet.sectionStartPos),a})}getNextPacket(e,t){return Y(this,null,function*(){let i=this.packetBuffers.get(e);if(i){const r=yield i.readNext();if(!r)return null;this.packetBuffers.delete(e);const n=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(n,i),this.packetSectionStarts.set(n,r.packet.sectionStartPos),n}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const n=this.elementaryStream.demuxer,s=yield n.readSection(r,!0);oe(s);const a=Bs(n,s,!0);oe(a);const o=new As(this.elementaryStream,a);i=new Ms(this,o);const l=e.sequenceNumber;for(;;){const e=yield i.readNext();if(!e)return null;if(e.packet.sequenceNumber>l){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}})}getNextKeyPacket(e,t){return Y(this,null,function*(){let i=e;for(;;){if(i=yield this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}})}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}doPacketLookup(e,t,i){return Y(this,null,function*(){var r,n,s,a,o,l;const c=He(e*Ts),u=this.elementaryStream.demuxer,{reader:d,seekChunkSize:h}=u,f=this.elementaryStream.pid,m=(e,t,i)=>Y(this,null,function*(){let r=e;for(;r<t;){const e=yield u.readPacketHeader(r);if(!e)return null;if(e.pid===f&&1===e.payloadUnitStartIndicator){const e=yield u.readSection(r,i);if(!e)return null;const t=Cs(u,e,!1);if(t&&null!==t.pts)return{pesPacketHeader:t,section:e}}r+=u.packetStride}return null}),p=this.elementaryStream.firstSection;oe(p);const g=Cs(u,p,!0);if(oe(g),c<g.pts)return null;let k;const y=this.elementaryStream.referencePesPackets,b=Re(y,c,e=>e.pts),T=-1!==b?y[b]:null;if(T&&c-T.pts<45e3)k=T.sectionStartPos;else{let e=0;if(null!==d.fileSize){const t=Math.ceil(d.fileSize/h);if(t>1){let i=0,r=t-1;for(e=i;i<=r;){const t=Math.floor((i+r)/2),n=Ke(t*h,u.packetStride)+g.sectionStartPos,s=n+h,a=yield m(n,s,!1);a?a.pesPacketHeader.pts<=c?(e=t,i=t+1):r=t-1:r=t-1}}}k=Ke(e*h,u.packetStride)+g.sectionStartPos}const v=yield m(k,null!=(r=d.fileSize)?r:1/0,!1);let w=null!=(n=null==v?void 0:v.pesPacketHeader)?n:null;w||(w=g);const S=this.getReorderSize(),P=(e,t)=>Y(this,null,function*(){var r,n;const s=yield u.readSection(e,!0);oe(s);const a=Bs(u,s,!0);oe(a);const o=new As(this.elementaryStream,a),l=new Ms(this,o);for(;;){if((null!=(n=null==(r=ce(l.presentationOrderPackets))?void 0:r.pts)?n:-1/0)>=c)break;if(!(yield l.readNextPacket()))break}const d=Ne(l.presentationOrderPackets,t);if(-1===d)return null;const h=l.presentationOrderPackets[d],f=0===d?0:h.pts-l.presentationOrderPackets[d-1].pts;for(;l.decodeOrderPackets[0]!==h;)l.decodeOrderPackets.shift();l.lastDuration=f;const m=yield l.readNext();oe(m);const p=this.createEncodedPacket(m.packet,m.duration,i);return this.packetBuffers.set(p,l),this.packetSectionStarts.set(p,m.packet.sectionStartPos),p});if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=w.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){if(e.pts>c)break e;w=e,Fs(this.elementaryStream,w);break}}}e+=u.packetStride}}e:for(let e=0;e<S+1;e++){let e=w.sectionStartPos-u.packetStride;for(;e>=u.packetOffset;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){w=e;break}}}e-=u.packetStride}}return P(w.sectionStartPos,e=>e.pts<=c)}{let e=k,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let r=null;const n=e<=g.sectionStartPos;let k,y=null;if(n)k=g,y=p;else{const t=yield m(e,null!=(s=d.fileSize)?s:1/0,i);k=null!=(a=null==t?void 0:t.pesPacketHeader)?a:null,y=null!=(o=null==t?void 0:t.section)?o:null}let b=!1,T=0;e:for(;k&&!(null!==t&&k.sectionStartPos>=t);){if(k.pts<=c){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===k.randomAccessIndicator;else{oe(y);const t=Bs(u,y,!0);oe(t);const i=new As(this.elementaryStream,t);yield i.markNextPacket(),e=1===(null==(l=i.suppliedPacket)?void 0:l.randomAccessIndicator)}e&&(r=k)}if(k.pts>c&&(b=!0),b&&(T++,T>S))break;let e=k.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,i);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){k=e,y=t,Fs(this.elementaryStream,k);break}}}e+=u.packetStride}}if(r){let e=r;if(0===T)e:for(let r=0;r<S;r++){let t=e.sectionStartPos-u.packetStride;for(;t>=u.packetOffset;){const r=yield u.readPacketHeader(t);if(!r)break e;if(r.pid===f&&1===r.payloadUnitStartIndicator){const r=yield u.readSection(t,i);if(r){const t=Cs(u,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=u.packetStride}}const t=yield P(e.sectionStartPos,e=>e.pts<=c&&1===e.randomAccessIndicator);return oe(t),t}if(n)return null;t=e,e=Math.max(Ke(e-g.sectionStartPos-h,u.packetStride)+g.sectionStartPos,g.sectionStartPos)}}})}}class _s extends Es{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}getColorSpace(){return Y(this,null,function*(){return this.elementaryStream.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return!1})}getDecoderConfig(){return Y(this,null,function*(){return oe(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Rs extends Es{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){return oe(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const Fs=(e,t)=>{const i=e.referencePesPackets,r=Re(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const n=i[r];if(t.pts<=n.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-n.sectionStartPos<s)return!1;if(r<i.length-1){const e=i[r+1];if(e.pts<t.pts)return!1;if(e.sectionStartPos-t.sectionStartPos<s)return!1}}return i.splice(r+1,0,t),!0};class As{constructor(e,t){this.currentPos=0,this.pesPackets=[],this.currentPesPacketIndex=0,this.currentPesPacketPos=0,this.endPos=0,this.lastSuppliedPesPacket=null,this.nextPts=null,this.suppliedPacket=null,this.elementaryStream=e,this.pid=e.pid,this.demuxer=e.demuxer,this.startingPesPacket=t}ensureBuffered(e){const t=this.endPos-this.currentPos;return t>=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return oe(e),e}bufferData(e){return Y(this,null,function*(){const t=this.endPos+e;for(;this.endPos<t;){let e;if(0===this.pesPackets.length)e=this.startingPesPacket;else{let t=ce(this.pesPackets).sectionEndPos;for(oe(null!==t);;){const i=yield this.demuxer.readPacketHeader(t);if(!i)return;if(i.pid===this.pid){const i=yield this.demuxer.readSection(t,!0);if(!i)return;const r=Bs(this.demuxer,i,!1);if(r){e=r;break}}t+=this.demuxer.packetStride}}this.pesPackets.push(e),this.endPos+=e.data.byteLength}})}readBytes(e){const t=this.getCurrentPesPacket(),i=this.currentPos-this.currentPesPacketPos,r=i+e;if(this.currentPos+=e,r<=t.data.byteLength)return t.data.subarray(i,r);const n=new Uint8Array(e);n.set(t.data.subarray(i));let s=t.data.byteLength-i;for(;;){this.advanceCurrentPacket();const t=this.getCurrentPesPacket(),i=e-s;if(i<=t.data.byteLength){n.set(t.data.subarray(0,i),s);break}n.set(t.data,s),s+=t.data.byteLength}return n}readU8(){let e=this.getCurrentPesPacket();const t=this.currentPos-this.currentPesPacketPos;return this.currentPos++,t<e.data.byteLength?e.data[t]:(this.advanceCurrentPacket(),e=this.getCurrentPesPacket(),e.data[0])}seekTo(e){if(e!==this.currentPos){if(e<this.currentPos)for(;e<this.currentPesPacketPos;){this.currentPesPacketIndex--;const e=this.getCurrentPesPacket();this.currentPesPacketPos-=e.data.byteLength}else for(;;){const t=this.getCurrentPesPacket();if(e<this.currentPesPacketPos+t.data.byteLength)break;this.currentPesPacketPos+=t.data.byteLength,this.currentPesPacketIndex++}this.currentPos=e}}skip(e){this.seekTo(this.currentPos+e)}advanceCurrentPacket(){this.currentPesPacketPos+=this.getCurrentPesPacket().data.byteLength,this.currentPesPacketIndex++}markNextPacket(){return Y(this,null,function*(){var e,t,i;oe(!this.suppliedPacket);const r=this.elementaryStream;if("video"===r.info.type){const e=r.info.codec,t=1024;if("avc"!==e&&"hevc"!==e)throw new Error("Unhandled.");const i="avc"===e?1:2;let n=null,s=!1,a=0;for(;;){let r=this.ensureBuffered(t);if(ct(r)&&(r=yield r),0===r)break;const o=this.currentPos,l=this.readBytes(r),c=l.byteLength;let u=0;for(;u<c;){const t=l.indexOf(0,u);if(-1===t||t>=c)break;u=t;const r=o+u;if(u+3>=c){this.seekTo(r);break}const d=l[u+1],h=l[u+2],f=l[u+3];let m=0;if(0===d&&0===h&&1===f?m=4:0===d&&1===h&&(m=3),0===m){u++;continue}const p=r;null!=n||(n=p);const g=u+m,k=g+i,y=6;if(k+("avc"===e?y:1)>c){this.seekTo(r);break}const b=l[g];let T,v,w;if("avc"===e)T=Ht(b),v=T===Nt.NON_IDR_SLICE||T===Nt.SLICE_DPA||T===Nt.IDR,w=T===Nt.SEI||T===Nt.SPS||T===Nt.PPS||T===Nt.AUD;else{T=ii(b);if(((1&b)<<5|l[g+1]>>3)>0){u+=m;continue}v=T<=Lt.RASL_R||T>=Lt.BLA_W_LP&&T<=21,w=T>=Lt.VPS_NUT&&T<=37||T===Lt.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let S=!1;if(v){let t;if("avc"===e){const e=l.subarray(k,k+y),i=ue(new Bt(e));t=!s||i<=a,a=i}else t=l[k]>>7===1;t&&(s?S=!0:s=!0)}else w&&s&&(S=!0);if(S){const e=p-n;return this.seekTo(n),this.supplyPacket(e,0)}u+=m}if(r<t)break}if(null!==n&&this.endPos>n){const e=this.endPos-n;return this.seekTo(n),this.supplyPacket(e,0)}}else{const n=r.info.codec,s=128;for(;;){let a=this.ensureBuffered(s);ct(a)&&(a=yield a);const o=this.currentPos;for(;this.currentPos-o<a;){const s=this.readU8();if("aac"===n){if(255!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(9);if(ct(t)&&(t=yield t),t<9)return;const i=this.readBytes(9),n=ms(yl.tempFromBytes(i));if(n){this.seekTo(e);let t=this.ensureBuffered(n.frameLength);return ct(t)&&(t=yield t),this.supplyPacket(t,Math.round(9216e4/r.info.sampleRate))}this.seekTo(e+1)}else{if("mp3"!==n){if("ac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(ct(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=i[4]>>6,a=63&i[4];if(3===n||a>37){this.seekTo(e+1);continue}const o=Bi[3*a+n];oe(void 0!==o),this.seekTo(e),t=this.ensureBuffered(o),ct(t)&&(t=yield t);const l=Math.round(13824e4/r.info.sampleRate);return this.supplyPacket(t,l)}if("eac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(ct(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=2*(((7&i[2])<<8|i[3])+1),a=3===i[4]>>6?3:i[4]>>4&3,o=Ei[a];this.seekTo(e),t=this.ensureBuffered(n),ct(t)&&(t=yield t);const l=256*o,c=Math.round(l*Ts/r.info.sampleRate);return this.supplyPacket(t,c)}if("dts"===n){if(127!==s&&100!==s)continue;this.skip(-1);const n=this.currentPos;let a=this.ensureBuffered(18);if(ct(a)&&(a=yield a),a<18)return;const o=this.readBytes(18),l=Hi(o);let c=l?null:Vi(o);if(!l&&!c){this.seekTo(n+1);continue}if(c&&!c.asset){this.seekTo(n);const t=Math.min(c.frameSize,4096);let i=this.ensureBuffered(t);ct(i)&&(i=yield i),c=null!=(e=Vi(this.readBytes(i)))?e:c}let u=l?l.frameSize:c.frameSize;if(l){let e=4*Math.ceil(l.frameSize/4);for(;;){this.seekTo(n);const t=e+10;let i=this.ensureBuffered(t);if(ct(i)&&(i=yield i),i<t)break;this.seekTo(n+e);const r=Vi(this.readBytes(10));if(!r)break;e+=r.frameSize,u=e}}const d=null!=(i=null==l?void 0:l.sampleCount)?i:null==(t=c.asset)?void 0:t.sampleCount;if(void 0===d){this.seekTo(n+1);continue}this.seekTo(n),a=this.ensureBuffered(u),ct(a)&&(a=yield a);const h=Math.round(d*Ts/r.info.sampleRate);return this.supplyPacket(a,h)}throw new Error("Unhandled.")}{if(255!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(4);if(ct(t)&&(t=yield t),t<4)return;const i=this.readBytes(4),n=me(i).getUint32(0),a=fr(n,null);if(a.header){this.seekTo(e);let t=this.ensureBuffered(a.header.totalSize);ct(t)&&(t=yield t);const i=a.header.audioSamplesInFrame*Ts/r.info.sampleRate;return this.supplyPacket(t,Math.round(i))}this.seekTo(e+1)}}}if(a<s)break}}})}supplyPacket(e,t){const i=this.getCurrentPesPacket();let r;if(this.lastSuppliedPesPacket===i)oe(null!==this.nextPts),r=this.nextPts;else{if(null===i.pts)throw new Error(Ss);r=i.pts,Fs(this.elementaryStream,i)}this.lastSuppliedPesPacket=i,this.nextPts=r+t;const n=i.sectionStartPos,s=n+(this.currentPos-this.currentPesPacketPos),a=this.readBytes(e);let o=i.randomAccessIndicator;if(0===o&&!this.elementaryStream.canBeTrustedWithKeyPackets)if("audio"===this.elementaryStream.info.type)o=1;else if(this.elementaryStream.info.decoderConfig){const e="key"===wi(this.elementaryStream.info.codec,this.elementaryStream.info.decoderConfig,a);o=Number(e)}this.suppliedPacket={pts:r,data:a,sequenceNumber:s,sectionStartPos:n,randomAccessIndicator:o},this.pesPackets.splice(0,this.currentPesPacketIndex),this.currentPesPacketIndex=0}}class Ms{constructor(e,t){this.decodeOrderPackets=[],this.reorderBuffer=[],this.presentationOrderPackets=[],this.reachedEnd=!1,this.lastDuration=0,this.backing=e,this.context=t,this.reorderSize=e.getReorderSize(),oe(this.reorderSize>=0)}readNext(){return Y(this,null,function*(){if(0===this.decodeOrderPackets.length){if(!(yield this.readNextPacket()))return null}yield this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(oe(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}})}readNextPacket(){return Y(this,null,function*(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||(yield this.context.markNextPacket()),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)})}ensureCurrentPacketHasNext(){return Y(this,null,function*(){const e=this.decodeOrderPackets[0];for(oe(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(yield this.readNextPacket()))break}})}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;i<this.reorderBuffer.length;i++)this.reorderBuffer[i].pts<this.reorderBuffer[e].pts&&(e=i);const t=this.reorderBuffer[e];this.presentationOrderPackets.push(t),this.reorderBuffer.splice(e,1)}}flushReorderBuffer(){this.reorderBuffer.sort((e,t)=>e.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const Ds="application/vnd.apple.mpegurl",Ns="#EXT-X-STREAM-INF:",Os="#EXT-X-I-FRAME-STREAM-INF:",Ls="#EXT-X-MEDIA:",zs="#EXTINF:",Us="#EXT-X-MAP:",qs="#EXT-X-KEY:",Ws="#EXT-X-MEDIA-SEQUENCE:",Hs="#EXT-X-BYTERANGE:",Vs="#EXT-X-PROGRAM-DATE-TIME:",js="#EXT-X-TARGETDURATION:",Ks="#EXT-X-PLAYLIST-TYPE:",Xs=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class $s{constructor(e){this._attributes={};let t="",i="",r=!1,n=!1;for(let s=0;s<e.length;s++){const a=e[s];'"'===a?n=!n:"="!==a||r||n?","!==a||n?r?i+=a:t+=a:(t&&(this._attributes[t.trim().toLowerCase()]=i),t="",i="",r=!1):r=!0}t&&(this._attributes[t.trim().toLowerCase()]=i)}get(e){var t;return null!=(t=this._attributes[e.toLowerCase()])?t:null}getAsNumber(e){const t=this.get(e);if(null===t)return null;const i=Number(t);return Number.isFinite(i)?i:null}merge(e){Object.assign(this._attributes,e._attributes)}}class Gs{constructor(e,t,i){this.nextInputCacheAge=0,this.inputCache=[],this.trackBackingsPromise=null,this.firstSegment=null,this.firstSegmentFirstTimestamps=new WeakMap,this.firstTimestampCache=new WeakMap,this.input=e,this.path=t,this.trackDeclarations=i}getDurationFromMetadata(e){return Y(this,null,function*(){const t=yield this.getSegmentAt(1/0,{skipLiveWait:e.skipLiveWait});return t?t.timestamp+t.duration:null})}getUnixTimeForTimestamp(e){return Y(this,null,function*(){let t=yield this.getSegmentAt(e,{});if(null!=t||(t=yield this.getFirstSegment({})),!t||null===t.unixEpochTimestamp)return null;const i=e-t.timestamp;return t.unixEpochTimestamp+i})}getTrackBackings(){return Y(this,null,function*(){var e;return null!=(e=this.trackBackingsPromise)?e:this.trackBackingsPromise=(()=>Y(this,null,function*(){const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=gt(e,e=>"video"===e.getType())+1;e.push(new Ys(this,t,i))}else if("audio"===t.type){const i=gt(e,e=>"audio"===e.getType())+1;e.push(new Js(this,t,i))}}else{if(this.firstSegment=yield this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=yield t.getTracks();for(const r of i)if("video"===r.type){const t=gt(e,e=>"video"===e.getType())+1;e.push(new Ys(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=gt(e,e=>"audio"===e.getType())+1;e.push(new Js(this,{id:e.length+1,type:"audio"},t))}}return e}))()})}getFirstTimestampForInput(e){return Y(this,null,function*(){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=yield e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i})}getMediaOffset(e,t){return Y(this,null,function*(){var i;const r=null!=(i=e.firstSegment)?i:e;let n;if(this.firstSegmentFirstTimestamps.has(r))n=this.firstSegmentFirstTimestamps.get(r);else{const e=this.getInputForSegment(r);n=yield this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(r,n)}if(r===e)return r.timestamp-n;const s=yield this.getFirstTimestampForInput(t),a=e.timestamp-r.timestamp,o=s-n-a;return Math.abs(o)<=Math.min(.25,a)?r.timestamp-n:e.timestamp-s})}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class Qs{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>Y(this,null,function*(){var e,t;if(null!=(e=this.segmentedInput).firstSegment||(e.firstSegment=yield this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let i=this.segmentedInput.firstSegment,r=null;for(;i;){const e=this.segmentedInput.getInputForSegment(i);if(r=null!=(t=(yield e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number))?t:null,r)break;i=yield this.segmentedInput.getNextSegment(i,{})}if(!r)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=r,this.firstSegment=i}))()}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}getHasOnlyKeyPackets(){return this.delegate(()=>{var e,t,i;return null!=(i=null==(t=(e=this.firstInputTrack._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:null})}getPairingMask(){return BigInt("1")}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}isRelativeToUnixEpoch(){return Y(this,null,function*(){return yield this.hydrate(),oe(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp})}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}createAdjustedPacket(e,t,i){return Y(this,null,function*(){oe(e.sequenceNumber>=0),oe(this.segmentedInput.firstSegment);const r=yield this.segmentedInput.getMediaOffset(t,i.input),n=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:je(e.timestamp+r,yield i.getTimeResolution()),sequenceNumber:Math.floor(1e8*n)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s})}getFirstPacket(e){return Y(this,null,function*(){var t;yield this.hydrate(),oe(this.firstInputTrack),oe(this.firstSegment);let i=this.firstInputTrack,r=this.firstSegment;for(;;){if(i){const t=yield i._backing.getFirstPacket(e);if(t)return this.createAdjustedPacket(t,r,i)}if(r=yield this.segmentedInput.getNextSegment(r,{skipLiveWait:e.skipLiveWait}),!r)break;const n=this.segmentedInput.getInputForSegment(r);i=null!=(t=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number))?t:null}return null})}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}_getNextInternal(e,t,i){return Y(this,null,function*(){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const n=i?yield r.track._backing.getNextKeyPacket(r.sourcePacket,t):yield r.track._backing.getNextPacket(r.sourcePacket,t);if(n)return this.createAdjustedPacket(n,r.segment,r.track);let s=r.segment;for(;;){const e=yield this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),n=(yield i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!n){s=e;continue}const a=yield n._backing.getFirstPacket(t);return a?this.createAdjustedPacket(a,e,n):null}})}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}_getPacketInternal(e,t,i){return Y(this,null,function*(){let r=yield this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(yield this.hydrate();r;){const n=this.segmentedInput.getInputForSegment(r),s=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const a=yield this.segmentedInput.getMediaOffset(r,n),o=e-a,l=i?yield s._backing.getKeyPacket(o,t):yield s._backing.getPacket(o,t);if(l)return this.createAdjustedPacket(l,r,s);r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null})}}class Ys extends Qs{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}getColorSpace(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())})}canBeTransparent(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())})}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}class Js extends Qs{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}ft();const Zs=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class ea extends vt{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}getSizeOrNull(){return Y(this,null,function*(){var e;if(this._disposed)throw new gl;return null!=(e=this._sizePromise)?e:this._sizePromise=(()=>Y(this,null,function*(){let e=this._getFileSize();return void 0!==e||(yield this._read(0,1,0,Zs),e=this._getFileSize(),oe(void 0!==e)),e}))()})}getSize(){return Y(this,null,function*(){if(this._disposed)throw new gl;const e=yield this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e})}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new ga(this,e,t)}_dispatchRead(e,t){var i;null==(i=this.onread)||i.call(this,e,t),this._emit("read",{start:e,end:t})}ref(){return new ta(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class ta{constructor(e){var t;if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),null==(t=e._refFinalizationRegistry)||t.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){var e;if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const t=this.source;oe(t._refCount>0),t._decrementRefCount(),null==(e=t._refFinalizationRegistry)||e.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class ia extends ea{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof ea||e instanceof ta))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof ea?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return ct(t)?t.then(i):i(t)}}const ra=(e,t)=>e.path===t.path;class na extends ia{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof ea?e.ref():e;return this._root=t,this._rootRequest=null,t};ct(e)?this._rootRequest=e.then(t):(t(e),oe(this._root))}if(this._rootRequest)return this._rootRequest.then(n=>n.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const sa="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class aa extends ea{constructor(e,t={}){var i;if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!mt(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new pa({maxCacheSize:null!=(i=t.maxCacheSize)?i:8*q(2,20),maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),null==sa||sa.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:ma.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}_runWorker(e){return Y(this,null,function*(){oe(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!it()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),null==sa||sa.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos<e.targetPos&&!e.aborted;)if(t){const{done:i,value:r}=yield t.read();if(i)throw this._orchestrator.onWorkerFinished(e),new Error("Blob reader stopped unexpectedly before all requested data was read.");if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+r.length),this._orchestrator.supplyWorkerData(e,r)}else{const t=yield this._blob.slice(e.currentPos,e.targetPos).arrayBuffer();if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+t.byteLength),this._orchestrator.supplyWorkerData(e,new Uint8Array(t))}this._orchestrator.signalWorkerStoppedRunning(e),e.aborted&&(yield null==t?void 0:t.cancel())})}_dispose(){this._orchestrator.dispose()}}const oa=.5*q(2,20),la=(e,t,i)=>{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch(r){}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return Pt._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(q(2,e-2),16)},ca=new Set;class ua extends ia{constructor(e,t={}){var i,r,n,s;if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!mt(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new ua(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=null!=(i=t.getRetryDelay)?i:la,this._requestInit=H({},t.requestInit);let a=null;if(null==(r=t.requestInit)?void 0:r.headers){const e=H({},Je(t.requestInit.headers)),i=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==i&&(a=e[i],delete e[i],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){null!=a||(a=t);const i=new Request(e);i.headers.delete("Range"),this._url=i}}if(null!==a){const e=ha(a);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new pa({maxCacheSize:null!=(n=t.maxCacheSize)?n:64*q(2,20),maxWorkerCount:null!=(s=t.parallelism)?s:2,runWorker:this._runWorker.bind(this),prefetchProfile:ma.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){var e;if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const t=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===t?null!==this._length?this._length:null:qe(t-this._offset,0,null!=(e=this._length)?e:1/0)}_read(e,t,i,r){var n;if(null!==this._length&&t>this._length)return null;const s=this._offset,a=this._sequentialBacking?this._sequentialBacking._read(s+e,s+t):this._orchestrator.read(s+e,s+t,Math.max(s+i,s),s+Math.min(r,null!=(n=this._length)?n:1/0)),o=e=>e?(e.offset-=this._offset,e):null;return ct(a)?a.then(o):o(a)}_runWorker(e){return Y(this,null,function*(){for(var t;;){const r=new AbortController,n=yield Ze(null!=(t=this._options.fetchFn)?t:fetch,this._url,Ye(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:r.signal}),this._getRetryDelay,()=>this._disposed);if(!n.ok)throw new Error(`Error fetching ${String(this._url)}: ${n.status} ${n.statusText}`);n.redirected&&(this.rootPath=n.url);e:if(null===this._orchestrator.fileSize&&(206===n.status||"basic"===n.type&&!n.headers.has("Content-Encoding"))){const t=n.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=n.headers.get("Content-Length");if(i){const t=206===n.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!n.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==n.status){if(this._sequentialBacking)return void n.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||ca.has(e.origin)||(Pt._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),ca.add(e.origin))}return void this._transitionToSequentialMode(n.body)}const s=n.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return r.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let t;try{t=yield s.read()}catch(i){if(this._disposed)throw i;const e=this._getRetryDelay(1,i,this._url);if(null!==e){Pt._error("Error while reading response stream. Attempting to resume.",i),yield Tt(1e3*e);break}throw i}if(e.aborted)continue;const{done:n,value:a}=t;if(n){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+a.length),this._orchestrator.supplyWorkerData(e,a)}}})}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const n=new ReadableStream({pull:e=>Y(this,null,function*(){for(var n;;){let a;try{a=yield t.read()}catch(s){if(this._disposed)throw s;const e=this._getRetryDelay(1,s,this._url);if(null===e)throw s;Pt._error("Error while reading response stream. Attempting to resume.",s),yield Tt(1e3*e);const a=yield Ze(null!=(n=this._options.fetchFn)?n:fetch,this._url,Ye(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!a.ok)throw new Error(`Error fetching ${String(this._url)}: ${a.status} ${a.statusText}`);if(!a.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=a.body.getReader(),r=206===a.status?0:i;continue}if(a.done)return void e.close();let o=a.value;if(r>0){const e=Math.min(r,o.length);r-=e,o=o.subarray(e)}if(0!==o.length)return i+=o.length,void e.enqueue(o)}}),cancel:()=>t.cancel()}),s=new fa(n,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const a=new Set;for(const o of this._orchestrator.workers){for(const e of o.pendingSlices)a.add(e);o.aborted=!0,o.pendingSlices.length=0}for(const o of this._orchestrator.queuedReads)for(const e of o.pendingSlices)a.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const o of a){const e=s._read(o.start,o.start+o.bytes.length);ct(e)?e.then(e=>{e?(oe(e.offset===o.start),o.resolve(e.bytes)):o.resolve(null)},e=>o.reject(e)):(oe(null===e),o.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const da=/^bytes=(\d+)-(\d*)$/,ha=e=>{const t=da.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&r<i?null:{offset:i,length:null!==r?r-i+1:null}};class fa extends ea{constructor(e,t={}){var i;if(!(e instanceof ReadableStream))throw new TypeError("stream must be a ReadableStream.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!mt(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");super(),this._reader=null,this._cache=[],this._pendingSlices=[],this._currentIndex=0,this._targetIndex=0,this._maxRequestedIndex=0,this._endIndex=null,this._pulling=!1,this._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. With ReadableStreamSource, you must access the data more sequentially or increase the size of its cache.",this._stream=e,this._maxCacheSize=null!=(i=t.maxCacheSize)?i:32*q(2,20),this._handleUnhandledError=t.handleUnhandledError}_getFileSize(){return this._endIndex}_read(e,t){if(null!==this._endIndex&&t>this._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=Re(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let n=e;const s=new Uint8Array(t-e);if(-1!==i)for(let c=i;c<this._cache.length;c++){const i=this._cache[c];if(i.start>=t)break;const r=Math.max(e,i.start);r>n&&this._throwDueToCacheMiss();const a=Math.min(t,i.end);r<a&&(s.set(i.bytes.subarray(r-i.start,a-i.start),r-e),n=a)}if(n===t)return{bytes:s,view:me(s),offset:e};this._currentIndex>n&&this._throwDueToCacheMiss();const{promise:a,resolve:o,reject:l}=Ae();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:l}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),a}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}_pull(){return Y(this,null,function*(){for(null!=this._reader||(this._reader=this._stream.getReader());this._currentIndex<this._targetIndex&&!this._disposed;){const{done:e,value:t}=yield this._reader.read();if(e){for(const e of this._pendingSlices)e.resolve(null);this._pendingSlices.length=0,this._endIndex=this._currentIndex;break}const i=this._currentIndex,r=this._currentIndex+t.byteLength;this._dispatchRead(i,r);for(let n=0;n<this._pendingSlices.length;n++){const e=this._pendingSlices[n],s=Math.max(i,e.start),a=Math.min(r,e.end);s<a&&(e.bytes.set(t.subarray(s-i,a-i),s-e.start),a===e.end&&(e.resolve({bytes:e.bytes,view:me(e.bytes),offset:e.start}),this._pendingSlices.splice(n,1),n--))}for(this._cache.push({start:i,end:r,bytes:t,view:me(t),age:0});this._cache.length>0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1})}_dispose(){var e;for(const t of this._pendingSlices)t.reject(new gl);this._pendingSlices.length=0,this._cache.length=0,null==(e=this._reader)||e.cancel()}}const ma={fileSystem:(e,t)=>{const i=q(2,16);return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=q(2,16);e=Math.max(0,Math.floor((e-r)/r)*r);for(const n of i){const i=8*q(2,20),r=Math.max((n.startPos+n.targetPos)/2,n.targetPos-i);if(dt(e,t,r,n.targetPos)){const e=n.targetPos-n.startPos,r=Math.ceil((e+1)/i)*i,s=q(2,Math.ceil(Math.log2(e+1))),a=Math.min(s,r);t=Math.max(t,n.startPos+a)}}return{start:e,end:t=Math.max(t,e+oa)}}};class pa{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){var n;oe(!this.disposed);const s=this.options.prefetchProfile(e,t,this.workers),a=Math.max(s.start,i),o=Math.min(s.end,null!=(n=this.fileSize)?n:1/0,r);oe(a<=e&&t<=o);let l=null;const c=Re(this.cache,e,e=>e.start),u=-1!==c?this.cache[c]:null;u&&u.start<=e&&t<=u.end&&(u.age=this.nextAge++,l={bytes:u.bytes,view:u.view,offset:u.start});const d=Re(this.cache,a,e=>e.start),h=l?null:new Uint8Array(t-e);let f=0,m=a;const p=[];if(-1!==d){for(let i=d;i<this.cache.length;i++){const r=this.cache[i];if(r.start>=o)break;if(r.end<=a)continue;const n=Math.max(a,r.start),s=Math.min(o,r.end);if(oe(n<=s),m<n&&p.push({start:m,end:n}),m=s,h){const i=Math.max(e,r.start),n=Math.min(t,r.end);if(i<n){const t=i-e;h.set(r.bytes.subarray(i-r.start,n-r.start),t),t===f&&(f=n-e)}}r.age=this.nextAge++}m<o&&p.push({start:m,end:o})}else p.push({start:a,end:o});if(h&&f>=h.length&&(l={bytes:h,view:me(h),offset:e}),0===p.length)return oe(l),l;const{promise:g,resolve:k,reject:y}=Ae(),b=[];for(const v of p){const i=Math.max(e,v.start),r=Math.min(t,v.end);i===v.start&&r===v.end?b.push(v):i<r&&b.push({start:i,end:r})}const T=h&&{start:e,bytes:h,holes:b,resolve:k,reject:y};e:for(const v of p){for(const i of this.workers){if(this.checkHoleAgainstWorker(i,v,T?[T]:[])){this.checkQueuedReadsAgainstWorker(i);continue e}}const e=v.end<o||null!==this.fileSize,t=this.createWorker(v.start,v.end,e);if(t)T&&(t.pendingSlices=[T]),this.runWorker(t);else{let t=Re(this.queuedReads,v.start,e=>e.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&v.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,v.end),i.strictTarget&&(i.strictTarget=e),T&&i.pendingSlices.push(T)):(t++,i={hole:{start:v.start,end:v.end},strictTarget:e,pendingSlices:T?[T]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1<this.queuedReads.length;){const e=this.queuedReads[t+1];if(e.hole.start>i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return l?g.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(oe(h),l=g.then(t=>t&&{bytes:t,view:me(t),offset:e})),l}checkHoleAgainstWorker(e,t,i){const r=q(2,17);if(dt(t.start-r,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t<i.length;t++){const r=i[t];e.pendingSlices.includes(r)||e.pendingSlices.push(r)}return e.running||this.runWorker(e),!0}return!1}checkQueuedReadsAgainstWorker(e){let t=!1;for(let i=0;i<this.queuedReads.length;i++){const r=this.queuedReads[i];if(this.checkHoleAgainstWorker(e,r.hole,r.pendingSlices))this.queuedReads.splice(i,1),i--,t=!0;else if(t)break}}createWorker(e,t,i){var r,n;if(this.workers.length>=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i<this.workers.length;i++){const r=this.workers[i];r.running||0!==r.pendingSlices.length||e&&!(r.age<e.age)||(t=i,e=r)}if(!e)return null;oe(null!==t),oe(0===e.pendingSlices.length),this.workers.splice(t,1),null==(n=(r=this.options).onIdleWorkerRemoved)||n.call(r,e)}const s={startPos:e,currentPos:e,targetPos:t,strictTarget:i,running:!1,aborted:this.disposed,pendingSlices:[],age:this.nextAge++};return this.workers.push(s),s}runWorker(e){oe(!e.running),oe(e.currentPos<e.targetPos),e.running=!0,e.age=this.nextAge++,this.options.runWorker(e).catch(t=>{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;r<this.queuedReads.length;r++){this.queuedReads[r].age<this.queuedReads[e].age&&(e=r)}const t=this.queuedReads[e],i=this.createWorker(t.hole.start,t.hole.end,t.strictTarget);if(!i)return;this.queuedReads.splice(e,1),i.pendingSlices=t.pendingSlices,this.runWorker(i)}})}supplyWorkerData(e,t){var i,r;oe(!e.aborted);const n=e.currentPos,s=n+t.length;this.insertIntoCache({start:n,end:s,bytes:t,view:me(t),age:this.nextAge++}),e.currentPos+=t.length,e.currentPos>e.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;a<e.pendingSlices.length;a++){const i=e.pendingSlices[a],r=Math.max(n,i.start),o=Math.min(s,i.start+i.bytes.length);r<o&&i.bytes.set(t.subarray(r-n,o-n),r-i.start);for(let e=0;e<i.holes.length;e++){const t=i.holes[e];n<=t.start&&s>t.start&&(t.start=s),t.end<=t.start&&(i.holes.splice(e,1),e--)}0===i.holes.length&&(i.resolve(i.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;a<this.workers.length;a++){const t=this.workers[a];e===t||t.running||dt(n,s,t.currentPos,t.targetPos)&&(this.workers.splice(a,1),null==(r=(i=this.options).onIdleWorkerRemoved)||r.call(i,t),a--)}}supplyFileSize(e){oe(null===this.fileSize),this.fileSize=e;for(const t of this.workers){t.targetPos=Math.min(t.targetPos,e),t.strictTarget=!0;for(let i=0;i<t.pendingSlices.length;i++){const r=t.pendingSlices[i];for(const n of r.holes)if(n.end>e){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t<this.queuedReads.length;t++){const i=this.queuedReads[t];if(i.hole.start>=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t<i.pendingSlices.length;t++){const r=i.pendingSlices[t];r.start>=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){var t,i;const r=this.workers.indexOf(e);oe(-1!==r),e.running=!1,this.workers.splice(r,1),null==(i=(t=this.options).onIdleWorkerRemoved)||i.call(t,e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const n of e.pendingSlices)n.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=Re(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=me(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i<this.cache.length;i++){const t=this.cache[i];if(e.end<=t.start)break;if(e.end>=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=me(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;i<this.cache.length;i++){const r=this.cache[i];r.age<t.age&&(e=i,t=r)}if(this.currentCacheSize-t.bytes.length<=this.options.maxCacheSize)break;this.cache.splice(e,1),this.currentCacheSize-=t.bytes.length}}dispose(){var e,t;for(const i of this.workers){for(const e of i.pendingSlices)e.reject(new gl);i.pendingSlices.length=0,i.aborted=!0,i.running||null==(t=(e=this.options).onIdleWorkerRemoved)||t.call(e,i)}for(const i of this.queuedReads)for(const e of i.pendingSlices)e.reject(new gl);this.workers.length=0,this.cache.length=0,this.queuedReads.length=0,this.disposed=!0}}class ga extends ea{constructor(e,t,i){if(super(),this._ref=null,e._disposed)throw new Error("Cannot create a slice of a disposed source.");this._baseSource=e,this._offset=t,this._length=null!=i?i:null}_getFileSize(){var e;const t=this._baseSource._getFileSize();return void 0===t?null!==this._length?this._length:void 0:null===t?null!==this._length?this._length:null:qe(t-this._offset,0,null!=(e=this._length)?e:1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const n=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return ct(n)?n.then(s):s(n)}_dispose(){var e;null==(e=this._ref)||e.free()}ref(){return null!=this._ref||(this._ref=this._baseSource.ref()),super.ref()}}var ka=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,n;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},ya=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const ba=/^0[xX][0-9a-fA-F]+$/,Ta=/^data:.*;base64,/i;class va extends Gs{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){var e;return null!=(e=this.currentUpdateSegmentsPromise)?e:this.currentUpdateSegmentsPromise=(()=>Y(this,null,function*(){try{const e=this.getRemainingWaitTimeMs();e>0&&(yield Tt(e)),this.lastSegmentUpdateTime=performance.now(),yield this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}}))()}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}updateSegments(){return Y(this,null,function*(){var e,t,i,r,n,s,a,o;let l=this.nextLines;if(this.nextLines=null,!l){const e={stack:[],error:void 0,hasError:!1};try{const t=ka(e,yield this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),i=new kl(t.source),r=yield i.requestEntireFile();oe(r),l=Ol(r,r.length,{ignore:Xs}),t.source instanceof ia&&(this.rootPath=t.source.rootPath)}catch(x){e.error=x,e.hasError=!0}finally{ya(e)}}const c=!1!==(null==(e=this.input._formatOptions.hls)?void 0:e.offsetTimestampsByDateTime);let u=!1,d=0,h=null,f=null,m=null,p=0,g=null,k=null,y=null,b=null,T=null,v=null,w=!1,S=null!=(t=ce(this.segments))?t:null;const P=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},I=e=>{p=e,S&&(oe(null!==S.sequenceNumber),S.sequenceNumber<e&&(d=S.timestamp+S.duration,g=S.firstSegment,k=S.initSegment,T=S.lastProgramDateTimeSeconds,h=null!==S.unixEpochTimestamp?S.unixEpochTimestamp+S.duration:null,S=null))};for(let C=0;C<l.length;C++){const e=l[C];if(u){if(!e.startsWith("#")){if(!S){if(null===f)throw new Error("Invalid M3U8 file; a segment must be preceded by an #EXTINF tag.");let t=m;if(t&&"AES-128"===t.method&&!t.iv){const e=new Uint8Array(Er),i=me(e);i.setUint32(8,Math.floor(p/q(2,32))),i.setUint32(12,p),t=V(H({},t),{iv:e})}const n={path:pt(this.rootPath,e),offset:null!=(i=null==b?void 0:b.offset)?i:0,length:null!=(r=null==b?void 0:b.length)?r:null},s={timestamp:d,unixEpochTimestamp:h,firstSegment:g,sequenceNumber:p,location:n,duration:f,encryption:t,initSegment:k,lastProgramDateTimeSeconds:T};null!=g||(g=s),d+=f,null!==h&&(h+=f),this.segments.push(s)}f=null,null===b?y=null:b=null,I(p+1)}if(e.startsWith(zs)){if(S){w=!0;continue}w||(null===T&&p>0&&null!==v&&(d=p*v),w=!0);const t=e.slice(8),i=t.indexOf(","),r=-1===i?t:t.slice(0,i),n=Number(r);if(!Number.isFinite(n)||n<0)throw new Error(`Invalid #EXTINF tag duration '${r}'.`);f=n}else if(e.startsWith(Us)){const t=new $s(e.slice(11)),i=t.get("uri");if(!i)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const r=t.get("byterange");let a=null;if(null!==r&&(a=P(r)),a&&null===a.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!S){const e={path:pt(this.rootPath,i),offset:null!=(n=null==a?void 0:a.offset)?n:0,length:null!=(s=null==a?void 0:a.length)?s:null};if("AES-128"===(null==m?void 0:m.method)&&!m.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");k={timestamp:d,unixEpochTimestamp:h,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:m,initSegment:null,lastProgramDateTimeSeconds:T}}f=null,null===b?y=null:b=null}else if(e.startsWith(qs)){const t=new $s(e.slice(11)),i=t.get("method");if("NONE"===i)m=null;else if("AES-128"===i){const e=t.get("uri");if(!e)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=t.get("iv");if(r){if(!ba.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Er);for(let t=0;t<Er;t++){const r=-32+t;i[t]=parseInt(e.slice(r,r+2),16)}}const n=null!=(a=t.get("keyformat"))?a:"identity";if("identity"!==n)throw new Error("For AES-128 encryption, only the 'identity' KEYFORMAT is currently supported. If you think other formats should be supported, please raise an issue.");m={method:"AES-128",keyUri:pt(this.rootPath,e),iv:i,keyFormat:n}}else{if("SAMPLE-AES"!==i&&"SAMPLE-AES-CTR"!==i)throw new Error(`Unsupported encryption method '${i}'. If you think this method should be supported, please raise an issue.`);{const e=t.get("uri");if(!e)throw new Error(`Invalid #EXT-X-KEY: ${i} requires a URI attribute.`);if("identity"===(null!=(o=t.get("keyformat"))?o:"identity"))throw new Error("For SAMPLE-AES and SAMPLE-AES-CTR encryption, the 'identity' KEYFORMAT is not supported. If you think this format should be supported, please raise an issue.");let r=null;if(Ta.test(e)){const t=e.indexOf(","),i=ht(e.slice(t+1));if(i.length>=8&&112===i[4]&&115===i[5]&&115===i[6]&&104===i[7]){const e=me(i).getUint32(0);r=vr(i.subarray(8,Math.min(e,i.length)))}}m={method:i,psshBox:r}}}}else if(e.startsWith(Ws)){const t=e.slice(22),i=Number(t);if(!Number.isInteger(i)||i<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${t}'.`);I(i)}else if(e.startsWith(Hs)){const t=P(e.slice(17));if(null===t.offset){if(null===y)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");t.offset=y}b=t,y=t.offset+t.length}else if(e.startsWith(Vs)){if(S)continue;const t=e.slice(25),i=Date.parse(t);if(!Number.isFinite(i))continue;const r=i/1e3;if(T===r)continue;if(null===T&&this.segments.length>0){const e=ce(this.segments),t=r-(e.timestamp+e.duration);for(const i of this.segments)i.unixEpochTimestamp=i.timestamp+t,c&&(i.timestamp=i.unixEpochTimestamp)}T=r,h=r,c&&(d=r)}else if("#EXT-X-DISCONTINUITY"===e)g=null;else if(e.startsWith(js)){const t=e.slice(22),i=Number(t);if(!Number.isFinite(i)||i<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${t}'.`);this.refreshInterval=i,v=i}else{if("#EXT-X-ENDLIST"===e){this.streamHasEnded=!0;break}if(e.startsWith(Ks)){"vod"===e.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==e)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");u=!0}}if(!u)throw new Error("Invalid M3U8 file; no #EXTM3U header.")})}getFirstSegment(){return Y(this,null,function*(){var e;return 0===this.segments.length&&(yield this.runUpdateSegments()),null!=(e=this.segments[0])?e:null})}getSegmentAt(e,t){return Y(this,null,function*(){0===this.segments.length&&(yield this.runUpdateSegments());let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=Re(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r<this.segments.length-1||this.streamHasEnded||i)return this.segments[r];const n=this.segments[r];if(e<n.timestamp+n.duration)return n;yield this.runUpdateSegments(),t.skipLiveWait&&(i=!0)}})}getNextSegment(e,t){return Y(this,null,function*(){const i=this.segments.indexOf(e);oe(-1!==i);const r=i+1;let n=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){if(r<this.segments.length)return this.segments[r];if(this.streamHasEnded||n)return null;yield this.runUpdateSegments(),t.skipLiveWait&&(n=!0)}})}getPreviousSegment(e){return Y(this,null,function*(){var t;const i=this.segments.indexOf(e);return oe(-1!==i),null!=(t=this.segments[i-1])?t:null})}getInputForSegment(e){var t,i;const r=e,n=this.inputCache.find(e=>e.segment===r);if(n)return n.age=this.nextInputCacheAge++,n.input;let s=null;(r.initSegment||r.firstSegment)&&(s=this.getInputForSegment(null!=(t=r.initSegment)?t:r.firstSegment));const a=V(H({},this.input._formatOptions),{isobmff:V(H({},this.input._formatOptions.isobmff),{resolveKeyId:(null==(i=this.input._formatOptions.isobmff)?void 0:i.resolveKeyId)&&(e=>{if(!r.encryption||"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method||!r.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let t=e.psshBoxes;const{psshBox:i}=r.encryption;return null!==i.keyIds&&!i.keyIds.includes(e.keyId)||t.some(e=>wr(e,i))||(t=[...t,i]),this.input._formatOptions.isobmff.resolveKeyId(V(H({},e),{psshBoxes:t}))})})}),o=new ml({source:new na(r.location.path,e=>Y(this,null,function*(){var t,i;oe(e.isRoot);const n=V(H({},e),{isRoot:!1});let s;const a=r.location.offset>0||null!==r.location.length;if(r.encryption&&"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method)if("AES-128"===r.encryption.method){const e=r.encryption;oe(e.iv);let t=yield this.input._getSourceCached(n);if(a){const e=t.source.slice(r.location.offset,null!=(i=r.location.length)?i:void 0).ref();t.free(),t=e}const o=((e,t,i)=>{let r=!1,n=0;const s=q(2,16),a=new Lr;return new ReadableStream({pull:o=>Y(null,null,function*(){r||(a.init(yield t()),r=!0);const l=s+16;let c=e.requestSliceRange(n,0,l);if(ct(c)&&(c=yield c),!c||0===c.length)throw new Error("Invalid ciphertext.");const u=c.length;if(u%16!==0)throw new Error("Invalid ciphertext.");const d=u===l?u-16:u,h=Tl(c,d),f=new Uint8Array(d);for(let e=0;e<d;e+=16)a.in.set(h.subarray(e,e+16)),a.decrypt(),f.set(a.out,e);if(d<u)o.enqueue(f),n+=d;else{const e=f[d-1];if(0===e||e>16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=f.subarray(0,d-e);o.enqueue(t),o.close(),i()}}),cancel:()=>{i()}})})(new kl(t.source),()=>Y(this,null,function*(){const t={stack:[],error:void 0,hasError:!1};try{const i=ka(t,yield this.input._getSourceCached({path:e.keyUri,isRoot:!1},fl),!1),r=new kl(i.source),n=yield r.requestSlice(0,Er);if(!n)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:Tl(n,Er),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{ya(t)}}),()=>{t.free()});s=new fa(o).ref()}else oe(!1);else if(s=yield this.input._getSourceCached(n),a){const e=s.source.slice(r.location.offset,null!=(t=r.location.length)?t:void 0).ref();s.free(),s=e}return s})),formats:this.input._formats.filter(e=>!(e instanceof qa)),initInput:null!=s?s:void 0,formatOptions:a});o._onFormatDetermined=e=>{var t,i;if(("SAMPLE-AES"===(null==(t=r.encryption)?void 0:t.method)||"SAMPLE-AES-CTR"===(null==(i=r.encryption)?void 0:i.method))&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:r,input:o,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=kt(this.inputCache,e=>e.age);oe(-1!==e),this.inputCache.splice(e,1)}return o}getLiveRefreshInterval(){return Y(this,null,function*(){return 0===this.getRemainingWaitTimeMs()&&(yield this.runUpdateSegments()),this.streamHasEnded?null:this.refreshInterval})}}class wa extends yr{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){oe(this.input._rootSource instanceof ia);const e=yield this.input._reader.requestEntireFile();oe(e);const t=Ol(e,e.length,{ignore:Xs}),{rootPath:i}=this.input._rootSource,r=[],n=[];for(let u=1;u<t.length;u++){const e=t[u];if(e.startsWith(Ns)){const n=u,s=t[++u];if(void 0===s)throw new Error("Incorrect M3U8 file; a line must follow the #EXT-X-STREAM-INF tag.");const a=pt(i,s),o=new $s(e.slice(18));if(null===o.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");r.push({fullPath:a,attributes:o,lineNumber:n,hasOnlyKeyPackets:!1})}else if(e.startsWith(Os)){const t=new $s(e.slice(26)),n=t.get("uri");if(null===n)throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a URI attribute.");if(null===t.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");const s=pt(i,n);r.push({fullPath:s,attributes:t,lineNumber:u,hasOnlyKeyPackets:!0})}else if(e.startsWith(Ls)){const t=new $s(e.slice(13));if(null===t.get("type"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a TYPE attribute.");if(null===t.get("group-id"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a GROUP-ID attribute.");let r=null;const s=t.get("uri");null!==s&&(r=pt(i,s)),n.push({fullPath:r,attributes:t,lineNumber:u})}else if("#EXT-X-I-FRAMES-ONLY"===e);else if(e.startsWith(zs)){const e=new va(this,i,null,t);return this.segmentedInputs=[e],this.hasMasterPlaylist=!1,void(this.trackBackings=yield e.getTrackBackings())}}const s=[...new Set(n.filter(e=>"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],a=[...new Set(n.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=yield Promise.all(r.map((e,t)=>Y(this,null,function*(){var r,o,l,c;const u=[],d=e.attributes.get("codecs");let h;if(d)h=d.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=yield t.getTrackBackings(),r=yield Promise.all(i.map(e=>Y(this,null,function*(){return{track:e,codec:yield e.getCodec()}})));h=yield Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const f=e.attributes.get("video"),m=e.attributes.get("audio"),p=h.some(e=>Ki.includes(or(e))),g=h.some(e=>$i.includes(or(e)));if(null!==f&&!p){if(!s.includes(f))throw new Error(`Invalid M3U8 file; variant stream references video group "${f}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===f&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=pt(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});oe(null!==a),h.push(a)}}if(null!==m&&!g){if(!a.includes(m))throw new Error(`Invalid M3U8 file; variant stream references audio group "${m}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===m&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=pt(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});oe(null!==a),h.push(a)}}h=[...new Set(h)];let k=null,y=null;const b=e.attributes.getAsNumber("bandwidth");oe(null!==b);const T=e.attributes.getAsNumber("average-bandwidth"),v=e.attributes.get("name");for(const i of h){const d=or(i);if(null!==d)if(Ki.includes(d)){if(null!==k)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");k=i;const a=e.attributes.get("video");if(null===a){const i=e.attributes.get("resolution");let r=null,n=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(r=Number(e[1]),n=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:We,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:k,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:b,averageBitrate:T,name:v,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:r,height:n}})}else{if(!s.includes(a))throw new Error(`Invalid M3U8 file; variant stream references video group "${a}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==a||"video"!==s.toLowerCase())continue;const l=null!=(r=i.attributes.get("resolution"))?r:e.attributes.get("resolution");let c=null,d=null;if(l){const e=l.match(/^(\d+)x(\d+)$/);e&&(c=Number(e[1]),d=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:xa(i.attributes),autoselect:xa(i.attributes)||Ca(i.attributes),languageCode:Ba(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(o=i.fullPath)?o:e.fullPath,fullCodecString:k,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:c,height:d}})}}}else if($i.includes(d)){if(null!==y)throw new Error("Unsupported M3U8 file; multiple audio codecs found in the CODECS attribute of a variant stream.");y=i;const r=e.attributes.get("audio");if(null===r){const i=e.attributes.get("channels"),r=null!==i?Number(i.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:We,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:y,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:b,averageBitrate:T,name:v,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==r&&Number.isInteger(r)&&r>0?r:null}})}else{if(!a.includes(r))throw new Error(`Invalid M3U8 file; variant stream references audio group "${r}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==r||"audio"!==s.toLowerCase())continue;const a=null!=(l=i.attributes.get("channels"))?l:e.attributes.get("channels"),o=null!==a?Number(a.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:xa(i.attributes),autoselect:xa(i.attributes)||Ca(i.attributes),languageCode:Ba(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(c=i.fullPath)?c:e.fullPath,fullCodecString:y,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==o&&Number.isInteger(o)&&o>0?o:null}})}}}}return u}))),l=[],c=e=>{var t,i;const r=l.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);r?(r.pairingMask|=e.pairingMask,r.default||(r.default=e.default),r.autoselect||(r.autoselect=e.autoselect),r.lineNumber=Math.min(r.lineNumber,e.lineNumber),null!==e.peakBitrate&&(r.peakBitrate=Math.max(null!=(t=r.peakBitrate)?t:-1/0,e.peakBitrate)),null!==e.averageBitrate&&(r.averageBitrate=Math.max(null!=(i=r.averageBitrate)?i:-1/0,e.averageBitrate)),r.languageCode===We&&(r.languageCode=e.languageCode)):(e.id=l.length+1,l.push(e))};for(const u of o)for(const e of u)c(e);l.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const u of l)"video"===u.info.type?this.trackBackings.push(new Pa(u)):this.trackBackings.push(new Ia(u));this.internalTracks=l}))()}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),oe(this.trackBackings),this.trackBackings})}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new va(this,e,i,null),this.segmentedInputs.push(t),t}getMetadataTags(){return Y(this,null,function*(){return{}})}getMimeType(){return Y(this,null,function*(){return Ds})}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class Sa{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>Y(this,null,function*(){const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(yield e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof Pa){for(const r of i)if((yield r.getCodec())===this.getCodec()){t=r;break}}else{oe(this instanceof Ia);for(const e of i)if((yield e.getCodec())===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t}))()}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return V(H({},Ct),{default:this.internalTrack.autoselect,primary:this.internalTrack.default})}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){oe(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}getDurationFromMetadata(e){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)})}getLiveRefreshInterval(){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()})}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}getFirstPacket(e){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)})}getPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)})}getKeyPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)})}getNextPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)})}getNextKeyPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)})}}class Pa extends Sa{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return or(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}getColorSpace(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getColorSpace()})}canBeTransparent(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.canBeTransparent()})}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getDecoderConfig()})}}class Ia extends Sa{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return or(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return Y(this,null,function*(){return yield this.hydrate(),this.backingAudioTrack.getDecoderConfig()})}}const xa=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},Ca=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},Ba=e=>{if(null===e)return We;const t=e.split("-")[0];return t||We};class Ea{constructor(){this._isIsobmff=!1}}class _a extends Ea{constructor(){super(...arguments),this._isIsobmff=!0}_getMajorBrand(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,12);if(ct(t)&&(t=yield t),!t)return null;t.skip(4);const i=Nl(t,4);return"ftyp"!==i&&"styp"!==i?null:Nl(t,4)})}_createDemuxer(e){return new zr(e)}}class Ra extends _a{_canReadInput(e){return Y(this,null,function*(){const t=yield this._getMajorBrand(e);if(null!==t)return"qt  "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(ct(t)&&(t=yield t),!t)return!1;let r=Cl(t),n=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(ct(t)&&(t=yield t),!t)return!1;r=Rl(t),n=16}if(r<n)return!1;const s=Nl(t,4);if("moof"===s||"sidx"===s)return!0;if("emsg"!==s&&"prft"!==s&&"free"!==s)return!1;i+=r}return!1})}get name(){return"MP4"}get mimeType(){return"video/mp4"}}class Fa extends _a{_canReadInput(e){return Y(this,null,function*(){return"qt  "===(yield this._getMajorBrand(e))})}get name(){return"QuickTime File Format"}get mimeType(){return"video/quicktime"}}class Aa extends Ea{isSupportedEBMLOfDocType(e,t){return Y(this,null,function*(){let i=e._reader.requestSlice(0,cn);if(ct(i)&&(i=yield i),!i)return!1;const r=un(i);if(null===r)return!1;if(r<1||r>8)return!1;if(hn(i,r)!==nn.EBML)return!1;const n=mn(i);if("number"!==typeof n)return!1;let s=e._reader.requestSlice(i.filePos,n);if(ct(s)&&(s=yield s),!s)return!1;const a=i.filePos;for(;s.filePos<=a+n-2;){const e=pn(s);if(!e)break;const{id:i,size:r}=e,n=s.filePos;if(void 0===r)return!1;switch(i){case nn.EBMLVersion:if(1!==hn(s,r))return!1;break;case nn.EBMLReadVersion:if(1!==hn(s,r))return!1;break;case nn.DocType:if(gn(s,r)!==t)return!1;break;case nn.DocTypeVersion:if(hn(s,r)>4)return!1}s.filePos=n+r}return!0})}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new Vn(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class Ma extends Aa{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Da extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}const i=yield $n(e._reader,t,t+4096);if(!i)return!1;const r=i.header,n=hr(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+n,4);if(ct(s)&&(s=yield s),!s)return!1;const a=Cl(s);if(a===ur||a===dr)return!0;t=i.startPos+i.header.totalSize;const o=yield $n(e._reader,t,t+4);if(!o)return!1;const l=o.header;return r.channel===l.channel&&r.sampleRate===l.sampleRate})}_createDemuxer(e){return new Gn(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class Na extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,12);if(ct(t)&&(t=yield t),!t)return!1;const i=Nl(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===Nl(t,4)})}_createDemuxer(e){return new ds(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class Oa extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,4);return ct(t)&&(t=yield t),!!t&&"OggS"===Nl(t,4)})}_createDemuxer(e){return new ss(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class La extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return ct(i)&&(i=yield i),!!i&&"fLaC"===Nl(i,4)})}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new ys(e)}}class za extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(ct(i)&&(i=yield i),!i)return!1;const r=ms(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),ct(i)&&(i=yield i),!i)return!1;const n=ms(i);return!!n&&(r.objectType===n.objectType&&r.samplingFrequencyIndex===n.samplingFrequencyIndex&&r.channelConfiguration===n.channelConfiguration)})}_createDemuxer(e){return new gs(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class Ua extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,205);if(ct(t)&&(t=yield t),!t)return!1;const i=Tl(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])})}_createDemuxer(e){return new xs(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class qa extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,7);if(ct(t)&&(t=yield t),!t)return!1;if(!("#EXTM3U"===Nl(t,7)))return!1;if(!(e._rootSource instanceof ia))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0})}_createDemuxer(e){return new wa(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Ds}}const Wa=new Ra,Ha=new Fa,Va=new Aa,ja=new Ma,Ka=new Da,Xa=new Na,$a=new Oa,Ga=new za,Qa=new La,Ya=new Ua,Ja=new qa,Za=[Ja,Wa,Ha,Va,ja,Xa,$a,Qa,Ka,Ga,Ya],eo=[Ja,Wa,Ha,Ka,Ga,Ya];var to=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});ft();let io=-1/0,ro=-1/0,no=null;"undefined"!==typeof FinalizationRegistry&&(no=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-io>=1e3&&(Pt._error("A VideoSample was garbage collected without first being closed. 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this.format&&this.format.includes("A")}constructor(e,t){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F;if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!oo.has(t.format))throw new TypeError("init.format must be one of: "+ao.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&bt(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=null!=(i=t.rotation)?i:0,this.timestamp=t.timestamp,this.duration=null!=(r=t.duration)?r:0;const m=null!=(n=t.layout)?n:bo(t.format,t.codedWidth,t.codedHeight);let p=null!=(s=t.colorSpace)?s:null;null===p&&(p="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:null!=(o=null==(a=t.visibleRect)?void 0:a.left)?o:0,top:null!=(c=null==(l=t.visibleRect)?void 0:l.top)?c:0,width:null!=(d=null==(u=t.visibleRect)?void 0:u.width)?d:t.codedWidth,height:null!=(f=null==(h=t.visibleRect)?void 0:h.height)?f:t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?fe(e):fe(e).slice(),this._layout=m,this.colorSpace=new mo(p)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==(null==t?void 0:t.rotation)&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==(null==t?void 0:t.timestamp)&&!Number.isFinite(null==t?void 0:t.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==(null==t?void 0:t.duration)&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==(null==t?void 0:t.visibleRect)&&bt(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:null!=(p=null==(m=e.visibleRect)?void 0:m.x)?p:0,top:null!=(k=null==(g=e.visibleRect)?void 0:g.y)?k:0,width:null!=(b=null==(y=e.visibleRect)?void 0:y.width)?b:e.codedWidth,height:null!=(v=null==(T=e.visibleRect)?void 0:T.height)?v:e.codedHeight},this.rotation=null!=(w=null==t?void 0:t.rotation)?w:0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=null!=(S=null==t?void 0:t.timestamp)?S:e.timestamp/1e6,this.duration=null!=(I=null==t?void 0:t.duration)?I:(null!=(P=e.duration)?P:0)/1e6,this.colorSpace=new mo(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&bt(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new lo(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*Qe),duration:Math.trunc((null!=(x=t.duration)?x:0)*Qe)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const n=null!=(C=t.visibleRect)?C:{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(n.width,n.height),a=s.getContext("2d",{alpha:nt(),willReadFrequently:!0});if(!a)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");a.drawImage(e,-n.left,-n.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:n.width,height:n.height},this.squarePixelWidth=n.width,this.squarePixelHeight=n.height,this.rotation=null!=(B=t.rotation)?B:0,this.timestamp=t.timestamp,this.duration=null!=(E=t.duration)?E:0,this.colorSpace=new mo({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof so))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!ao.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=null!=(_=t.rotation)?_:0,this.timestamp=t.timestamp,this.duration=null!=(R=t.duration)?R:0,this.colorSpace=e.getColorSpace()}this.encodeOptions=null!=(F=null==t?void 0:t.encodeOptions)?F:{},this.pixelAspectRatio=yt({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),null==no||no.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return oe(null!==this._data),this._data instanceof so?new lo(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):po(this._data)?new lo(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(oe(this._layout),new lo(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new lo(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(null==no||no.unregister(this),this._data instanceof so?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):po(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){var t;if(yo(e),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(t=e.format)?t:this.format))throw new Error("Cannot get allocation size when format is null.");if(po(this._data))return this._data.allocationSize(e);return vo(this,e).allocationSize}copyTo(e){return Y(this,arguments,function*(e,t={}){var i,r;if(!Ie(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer 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is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,yield this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},null!=(r=t.colorSpace)?r:"srgb"),!1);if(!(n instanceof lo))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(n.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${n.format}' instead.`);return yield n.copyTo(e,t)}catch(u){i.error=u,i.hasError=!0}finally{to(i)}}}const n=vo(this,t);oe(this.format);const s=fe(e);if(s.byteLength<n.allocationSize)throw new TypeError(`Destination buffer too small. Required: ${n.allocationSize}, Available: ${s.byteLength}`);const a=To(this.format);let o;if(this._data instanceof so){let e=this._data.getDataPlanes();if(ct(e)&&(e=yield e),!Array.isArray(e)||e.some(e=>!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');o=e}else if(this._data instanceof Uint8Array)oe(this._layout),oe(this._layout.length===a.length),o=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");oe(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);o=[{data:fe(t.data),stride:4*this.codedWidth}]}const l=[],c=a.length;for(let d=0;d<c;d++){const e=n.computedLayouts[d],t=o[d].stride,i=o[d].data;let r=e.sourceTop*t;r+=e.sourceLeftBytes;let a=e.destinationOffset;const c=e.sourceWidthBytes,u={offset:a,stride:e.destinationStride};for(let n=0;n<e.sourceHeight;n++){if(r+c>i.byteLength)throw new Error("Source buffer OOB read.");if(a+c>s.byteLength)throw new Error("Destination buffer OOB write.");const n=i.subarray(r,r+c);s.set(n,a),r+=t,a+=e.destinationStride}l.push(u)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),i=this.format.includes("X")&&t.format.includes("A");if(e||i)for(let t=0;t<n.allocationSize;t+=4){if(e){const e=s[t],i=s[t+2];s[t]=i,s[t+2]=e}i&&(s[t+3]=255)}}return l})}toVideoFrame(){if(this._closed)throw new Error("VideoSample is closed.");if(oe(null!==this._data),this._data instanceof so){if(null===this.format)throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if format is null.");const e=this._data.getDataPlanes();if(ct(e))throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if getDataPlanes() returns a promise.");const t=e.reduce((e,t)=>e+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const n=[];for(const s of e)i.set(s.data,r),n.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:n[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return po(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(oe(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,n,s,a,o,l){let c=0,u=0,d=this.displayWidth,h=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(c=t,u=i,d=r,h=n,f=s,m=a,void 0!==o?(p=o,g=l):(p=d,g=h)):(f=t,m=i,void 0!==r&&(p=r,g=n)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(c))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:c,sy:u,sWidth:d,sHeight:h}=this._rotateSourceRegion(c,u,d,h,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const T=this.rotation%180===0?1:p/g;e.scale(1/T,T),e.drawImage(k,c,u,d,h,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){var i,r,n,s,a,o,l,c,u;if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&ko(t.crop,"options.");const d=e.canvas.width,h=e.canvas.height,f=null!=(i=t.rotation)?i:this.rotation,[m,p]=f%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let g,k,y,b,T=t.crop;T&&(T=go(T,m,p));const{sx:v,sy:w,sWidth:S,sHeight:P}=this._rotateSourceRegion(null!=(n=null==(r=t.crop)?void 0:r.left)?n:0,null!=(a=null==(s=t.crop)?void 0:s.top)?a:0,null!=(l=null==(o=t.crop)?void 0:o.width)?l:m,null!=(u=null==(c=t.crop)?void 0:c.height)?u:p,f);if("fill"===t.fit)g=0,k=0,y=d,b=h;else{const[e,i]=t.crop?[t.crop.width,t.crop.height]:[m,p],r="contain"===t.fit?Math.min(d/e,h/i):Math.max(d/e,h/i);y=e*r,b=i*r,g=(d-y)/2,k=(h-b)/2}e.save();const I=f%180===0?1:y/b;e.translate(d/2,h/2),e.rotate(f*Math.PI/180),e.scale(1/I,I),e.translate(-d/2,-h/2),e.drawImage(this.toCanvasImageSource(),v,w,S,P,g,k,y,b),e.restore()}_rotateSourceRegion(e,t,i,r,n){return 90===n?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===n?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===n&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,n=e.height,[s,a]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,l=i.crop?i.crop.height:a;let c=0;2*r<o&&2*n<l&&(c=Math.floor(Math.log2(Math.min(o/r,l/n))));const u=r*q(2,c),d=n*q(2,c),{canvas:h,context:f,isNew:m}=c>0?fo(u,d):{canvas:e,context:t,isNew:i.targetIsFresh};f.imageSmoothingQuality="high",i.fillBlack?(f.fillStyle="black",f.fillRect(0,0,u,d)):m||f.clearRect(0,0,u,d),this.drawWithFit(f,{fit:i.fit,rotation:i.rotation,crop:i.crop}),f.globalCompositeOperation="copy";for(let p=c;p>1;p--){const e=r*q(2,p),t=n*q(2,p);f.drawImage(h,0,0,e,t,0,0,e/2,t/2)}f.globalCompositeOperation="source-over",c>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(h,0,0,2*r,2*n,0,0,r,n),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(oe(null!==this._data),this._data instanceof so||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}transform(e){return Y(this,null,function*(){var t,i,r,n,s;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&ko(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const a=le(this.rotation+(null!=(t=e.rotate)?t:0)),[o,l]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let c=e.crop;c&&(c=go(c,o,l));const u=c?c.width:o,d=c?c.height:l,h=u/d;let f,m;void 0!==e.width&&void 0===e.height?(f=e.width,m=f/h):void 0===e.width&&void 0!==e.height?(m=e.height,f=m*h):void 0!==e.width&&void 0!==e.height?(f=e.width,m=e.height):(f=u,m=d),f=Ve(f,null!=(i=e.roundDimensionsTo)?i:1),m=Ve(m,null!=(r=e.roundDimensionsTo)?r:1);const p={width:f,height:m,fit:null!=(n=e.fit)?n:"fill",rotation:a,crop:null!=c?c:{left:0,top:0,width:o,height:l},alpha:null!=(s=e.alpha)?s:"keep"};for(const e of co){let t=e(this,p);if(ct(t)&&(t=yield t),null!==t)return t}const{canvas:g,context:k,isNew:y}=fo(p.width,p.height);return this._drawWithFitAndMipmapping(g,k,{fit:p.fit,rotation:p.rotation,crop:p.crop,targetIsFresh:y,fillBlack:"discard"===p.alpha}),new lo(g,{timestamp:this.timestamp,duration:this.duration,rotation:0})})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const co=[],uo=[];let ho=0;const fo=(e,t)=>{for(const n of uo)if(n.canvas.width===e&&n.canvas.height===t)return n.age=ho++,{canvas:n.canvas,context:n.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return uo.length>=3&&uo.splice(kt(uo,e=>e.age),1),uo.push({canvas:i,context:r,age:ho++}),{canvas:i,context:r,isNew:!0}};class mo{constructor(e){var t,i,r,n;if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(ke);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(be);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(ve);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=null!=(t=null==e?void 0:e.primaries)?t:null,this.transfer=null!=(i=null==e?void 0:e.transfer)?i:null,this.matrix=null!=(r=null==e?void 0:e.matrix)?r:null,this.fullRange=null!=(n=null==e?void 0:e.fullRange)?n:null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const po=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,go=(e,t,i)=>{const r=Math.min(e.left,t),n=Math.min(e.top,i),s=Math.min(e.width,t-r),a=Math.min(e.height,i-n);return oe(s>=0),oe(a>=0),{left:r,top:n,width:s,height:a}},ko=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},yo=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},bo=(e,t,i)=>{const r=To(e),n=[];let s=0;for(const a of r){const e=Math.ceil(t/a.widthDivisor),r=Math.ceil(i/a.heightDivisor),o=e*a.sampleBytes,l=o*r;n.push({offset:s,stride:o}),s+=l}return n},To=e=>{const t=(e,t,i,r,n)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return n&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:Oe(e),oe(!1)}},vo=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,n=wo(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let a;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");a=t.format}else a=e.format;return Po(n,a,s)},wo=(e,t,i,r,n)=>{const s=H({},e);if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!So(n,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},So=(e,t)=>{if(null===e)return!0;const i=To(e);for(let r=0;r<i.length;r++){const e=i[r],n=e.widthDivisor,s=e.heightDivisor;if((t.x||0)%n!==0)return!1;if((t.y||0)%s!==0)return!1}return!0},Po=(e,t,i)=>{const r=To(t),n=r.length;if(void 0!==i&&i.length!==n)throw new TypeError(`Layout must have ${n} planes.`);let s=0;const a=[],o=[];for(let l=0;l<n;l++){const t=r[l],n=t.sampleBytes,c=t.widthDivisor,u=t.heightDivisor,d={destinationOffset:0,destinationStride:0,sourceTop:0,sourceHeight:0,sourceLeftBytes:0,sourceWidthBytes:0};if(d.sourceTop=Math.ceil(Math.trunc(e.y||0)/u),d.sourceHeight=Math.ceil(Math.trunc(e.height||0)/u),d.sourceLeftBytes=Math.floor(Math.trunc(e.x||0)/c)*n,d.sourceWidthBytes=Math.floor(Math.trunc(e.width||0)/c)*n,void 0!==i){const e=i[l];if(e.stride<d.sourceWidthBytes)throw new TypeError(`Stride for plane ${l} is too small.`);d.destinationOffset=e.offset,d.destinationStride=e.stride}else d.destinationOffset=s,d.destinationStride=d.sourceWidthBytes;const h=d.destinationStride*d.sourceHeight+d.destinationOffset;if(h>4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(h),s=Math.max(s,h);for(let e=0;e<l;e++){const t=a[e];if(!(o[l]<=t.destinationOffset||o[e]<=d.destinationOffset))throw new TypeError("Planes overlap.")}a.push(d)}return{allocationSize:s,computedLayouts:a}},Io=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]);class xo{constructor(){this._referenceCount=0}}class Co{get microsecondTimestamp(){return Math.trunc(Qe*this.timestamp)}get microsecondDuration(){return Math.trunc(Qe*this.duration)}constructor(e){if(this._closed=!1,Fo(e)){if(null===e.format)throw new TypeError("AudioData with null format is not supported.");this._data=e,this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=e.numberOfFrames,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp/1e6,this.duration=e.numberOfFrames/e.sampleRate}else if(e instanceof xo){if(this._data=e,e._referenceCount++,this.format=e.getFormat(),!Io.has(this.format))throw new TypeError("getFormat() must return an AudioSampleFormat.");if(this.sampleRate=e.getSampleRate(),!Number.isInteger(this.sampleRate)||this.sampleRate<=0)throw new TypeError("getSampleRate() must return a positive integer.");if(this.numberOfFrames=e.getNumberOfFrames(),!Number.isInteger(this.numberOfFrames)||this.numberOfFrames<0)throw new TypeError("getNumberOfFrames() must return a non-negative integer.");if(this.numberOfChannels=e.getNumberOfChannels(),!Number.isInteger(this.numberOfChannels)||this.numberOfChannels<=0)throw new TypeError("getNumberOfChannels() must return a positive integer.");if(this.timestamp=e.getTimestamp(),!Number.isFinite(this.timestamp))throw new TypeError("getTimestamp() must return a finite number.");this.duration=this.numberOfFrames/this.sampleRate}else{if(!e||"object"!==typeof e)throw new TypeError("Invalid AudioDataInit: must be an object.");if(!Io.has(e.format))throw new TypeError("Invalid AudioDataInit: invalid format.");if(!Number.isFinite(e.sampleRate)||e.sampleRate<=0)throw new TypeError("Invalid AudioDataInit: sampleRate must be > 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(null==e?void 0:e.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(Bo(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*Bo(this.format);if(i.byteLength<r)throw new TypeError("Invalid AudioDataInit: insufficient data size.");this._data=i}null==no||no.register(this,{type:"audio",data:this._data},this)}allocationSize(e){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(!Number.isInteger(e.planeIndex)||e.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==e.format&&!Io.has(e.format))throw new TypeError("Invalid format.");if(void 0!==e.frameOffset&&(!Number.isInteger(e.frameOffset)||e.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==e.frameCount&&(!Number.isInteger(e.frameCount)||e.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const r=null!=(t=e.format)?t:this.format,n=null!=(i=e.frameOffset)?i:0;if(n>=this.numberOfFrames)throw new RangeError("frameOffset out of range");const s=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-n;if(s>this.numberOfFrames-n)throw new RangeError("frameCount out of range");const a=Bo(r),o=Eo(r);if(o&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!o&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(o?s:s*this.numberOfChannels)*a}copyTo(e,t){if(!Ie(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!Io.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:n}=t;let{planeIndex:s}=t,a=this.format;const o=null!=i?i:this.format;if(!o)throw new Error("Destination format not determined");const l=this.numberOfFrames,c=this.numberOfChannels,u=null!=n?n:0;if(u>=l)throw new RangeError("frameOffset out of range");const d=void 0!==r?r:l-u;if(d>l-u)throw new RangeError("frameCount out of range");const h=Bo(o),f=Eo(o);if(f&&s>=c)throw new RangeError("planeIndex out of range");if(!f&&0!==s)throw new RangeError("planeIndex out of range");const m=(f?d:d*c)*h;if(e.byteLength<m)throw new RangeError("Destination buffer is too small");const p=me(e),g=Ro(o);if(Fo(this._data)){if(it()&&c>2&&o!==a)return void Ao(this._data,p,a,o,c,s,u,d);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:u,frameCount:d,format:o})}catch(w){if("f32-planar"===o)throw w;a="f32-planar"}}const k=_o(a),y=Bo(a),b=Eo(a);let T;if(this._data instanceof xo){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=l*y*(b?1:c);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(b)if(f)T=e(s),s=0;else{T=new Uint8Array(l*y*c);for(let t=0;t<c;t++){const i=e(t);T.set(i,t*l*y)}}else T=e(0)}else if(this._data instanceof Uint8Array)T=this._data;else if(oe("f32-planar"===a),f)T=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:s})),this._data.copyTo(T,{format:"f32-planar",planeIndex:s}),s=0;else{T=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:0})*c);for(let e=0;e<c;e++)this._data.copyTo(T.subarray(e*l*y,(e+1)*l*y),{format:"f32-planar",planeIndex:e})}const v=me(T);for(let S=0;S<d;S++)if(f){let e;e=b?(s*l+(S+u))*y:((S+u)*c+s)*y;g(p,S*h,k(v,e))}else for(let e=0;e<c;e++){let t;t=b?(e*l+(S+u))*y:((S+u)*c+e)*y;g(p,(S*c+e)*h,k(v,t))}}clone(){if(this._closed)throw new Error("AudioSample is closed.");if(this._data instanceof xo){const e=new Co(this._data);return e.setTimestamp(this.timestamp),e}if(Fo(this._data)){const e=new Co(this._data.clone());return e.setTimestamp(this.timestamp),e}return new Co({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp,data:this._data})}trim(e,t=this.numberOfFrames){if(!Number.isInteger(e)||e<0)throw new TypeError("startFrame must be a non-negative integer.");if(!Number.isInteger(t)||t<0)throw new TypeError("endFrame must be a non-negative integer.");if(e>this.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t<e)throw new RangeError("endFrame must not be less than startFrame.");if(this._closed)throw new Error("AudioSample is closed.");const i=t-e,r=Bo(this.format);let n;if(Eo(this.format)){const t=i*r;if(n=new Uint8Array(t*this.numberOfChannels),i>0)for(let r=0;r<this.numberOfChannels;r++)this.copyTo(n.subarray(r*t,(r+1)*t),{planeIndex:r,format:this.format,frameOffset:e,frameCount:i})}else n=new Uint8Array(i*this.numberOfChannels*r),i>0&&this.copyTo(n,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new Co({data:n,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(null==no||no.unregister(this),this._data instanceof xo?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Fo(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof xo?this._createAudioDataFromData():Fo(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(Eo(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(new Uint8Array(t,i*e,e),{planeIndex:i,format:this.format});return new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:t})}{const e=new ArrayBuffer(this.allocationSize({planeIndex:0,format:this.format}));return this.copyTo(e,{planeIndex:0,format:this.format}),new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:e})}}toAudioBuffer(){if(this._closed)throw new Error("AudioSample is closed.");const e=new AudioBuffer({numberOfChannels:this.numberOfChannels,length:this.numberOfFrames,sampleRate:this.sampleRate}),t=new Float32Array(this.allocationSize({planeIndex:0,format:"f32-planar"})/4);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(t,{planeIndex:i,format:"f32-planar"}),e.copyToChannel(t,i);return e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}[Symbol.dispose](){this.close()}static*_fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,n=e.length,s=Math.floor(24e4/i);let a=0,o=n;for(;o>0;){const n=Math.min(s,o),l=new Float32Array(i*n);for(let t=0;t<i;t++)e.copyFromChannel(l.subarray(t*n,(t+1)*n),t,a);yield new Co({format:"f32-planar",sampleRate:r,numberOfFrames:n,numberOfChannels:i,timestamp:t+a/r,data:l}),a+=n,o-=n}}static fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,n=e.length,s=Math.floor(24e4/i);let a=0,o=n;const l=[];for(;o>0;){const n=Math.min(s,o),c=new Float32Array(i*n);for(let t=0;t<i;t++)e.copyFromChannel(c.subarray(t*n,(t+1)*n),t,a);const u=new Co({format:"f32-planar",sampleRate:r,numberOfFrames:n,numberOfChannels:i,timestamp:t+a/r,data:c});l.push(u),a+=n,o-=n}return l}}const Bo=e=>{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},Eo=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},_o=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},Ro=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,qe(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,qe(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,qe(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},Fo=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,Ao=(e,t,i,r,n,s,a,o)=>{const l=_o(i),c=Ro(r),u=Bo(i),d=Bo(r),h=Eo(i);if(Eo(r))if(h){const r=new ArrayBuffer(o*u),n=me(r);e.copyTo(r,{planeIndex:s,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,e*d,l(n,e*u))}}else{const r=new ArrayBuffer(o*n*u),h=me(r);e.copyTo(r,{planeIndex:0,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,e*d,l(h,(e*n+s)*u))}}else if(h){const r=new ArrayBuffer(o*u),s=me(r);for(let h=0;h<n;h++){e.copyTo(r,{planeIndex:h,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,(e*n+h)*d,l(s,e*u))}}}else{const r=new ArrayBuffer(o*n*u),s=me(r);e.copyTo(r,{planeIndex:0,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++)for(let i=0;i<n;i++){const r=e*n+i;c(t,r*d,l(s,r*u))}}},Mo=[],Do=[],No=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},Oo=e=>{if(!mt(e))throw new TypeError("timestamp must be a number.")},Lo=(e,t,i)=>i.verifyKeyPackets?t.then(t=>Y(null,null,function*(){if(!t||"delta"===t.type)return t;const i=yield e.determinePacketType(t);return i&&(t.type=i),t})):t;class zo{constructor(e){if(!(e instanceof el))throw new TypeError("track must be an InputTrack.");this._track=e}getFirstPacket(){return Y(this,arguments,function*(e={}){if(No(e),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getFirstPacket(e),e)})}getFirstKeyPacket(){return Y(this,arguments,function*(e={}){No(e);const t=yield this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null})}getPacket(e){return Y(this,arguments,function*(e,t={}){if(Oo(e),No(t),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getPacket(e,t),t)})}getNextPacket(e){return Y(this,arguments,function*(e,t={}){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(No(t),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getNextPacket(e,t),t)})}getKeyPacket(e){return Y(this,arguments,function*(e,t={}){if(Oo(e),No(t),this._track.input._disposed)throw new gl;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=yield this._track._backing.getKeyPacket(e,t);if(!i)return i;oe("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getKeyPacket(i.timestamp-1/(yield this._track.getTimeResolution()),t):i})}getNextKeyPacket(e){return Y(this,arguments,function*(e,t={}){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(No(t),this._track.input._disposed)throw new gl;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=yield this._track._backing.getNextKeyPacket(e,t);if(!i)return i;oe("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getNextKeyPacket(i,t):i})}packets(e,t,i={}){if(void 0!==e&&!(e instanceof Tr))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!(null==i?void 0:i.metadataOnly))throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof Tr))throw new TypeError("endPacket must be an EncodedPacket.");if(No(i),this._track.input._disposed)throw new gl;const r=[];let{promise:n,resolve:s}=Ae(),{promise:a,resolve:o}=Ae(),l=!1,c=!1,u=null,d=!1;const h=[],f=()=>Math.max(2,h.length);(()=>Y(this,null,function*(){let u=null!=e?e:yield this.getFirstPacket(i);for(;u&&!c&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=(null==t?void 0:t.sequenceNumber));)r.length>f()?(({promise:a,resolve:o}=Ae()),yield a):(r.push(u),s(),({promise:n,resolve:s}=Ae()),u=yield this.getNextPacket(u,i));l=!0,s()}))().catch(e=>{d||(u=e,d=!0,s())});const m=this._track;return{next(){return Y(this,null,function*(){for(;;){if(m.input._disposed)throw new gl;if(c)return{value:void 0,done:!0};if(d)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(h.push(t);h.length>0&&t-h[0]>=1e3;)h.shift();return o(),{value:e,done:!1}}if(l)return{value:void 0,done:!0};yield n}})},return(){return Y(this,null,function*(){return c=!0,o(),s(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}class Uo{constructor(e,t){this.onSample=e,this.onError=t}}class qo{mediaSamplesInRange(e=-1/0,t=1/0,i){Oo(e),Oo(t);const r=[];let n=!1,s=null,{promise:a,resolve:o}=Ae(),{promise:l,resolve:c}=Ae(),u=!1,d=!1,h=!1,f=null,m=null,p=!1;const g=V(H({},i),{verifyKeyPackets:!0,metadataOnly:!1});(()=>Y(this,null,function*(){var i;f=yield this._createDecoder(i=>{c(),i.timestamp>=t&&(d=!0),d?i.close():(s&&(i.timestamp>e?(r.push(s),n=!0):s.close()),i.timestamp>=e&&(r.push(i),n=!0),s=n?null:i,r.length>0&&(o(),({promise:a,resolve:o}=Ae())))},e=>{p||(m=e,p=!0,o())});const k=this._createPacketSink(),y=null!=(i=yield k.getKeyPacket(e,g))?i:yield k.getFirstKeyPacket(g);let b=y;const T=k.packets(null!=y?y:void 0,void 0,g);for(yield T.next();b&&!d&&!this._track.input._disposed;){const e=Wo(r.length);if(r.length+f.getDecodeQueueSize()>e){({promise:l,resolve:c}=Ae()),yield l;continue}f.decode(b);const t=yield T.next();if(t.done)break;b=t.value}yield T.return(),h||this._track.input._disposed||(yield f.flush()),!n&&s&&r.push(s),u=!0,o()}))().catch(e=>{p||(m=e,p=!0,o())}).finally(()=>{null==f||f.close()});const k=this._track,y=()=>{null==s||s.close();for(const e of r)e.close()};return{next(){return Y(this,null,function*(){for(;;){if(k.input._disposed)throw h=!0,d=!0,y(),new gl;if(h)return{value:void 0,done:!0};if(p)throw h=!0,d=!0,y(),m;if(r.length>0){const e=r.shift();return c(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};yield a}})},return(){return Y(this,null,function*(){return h=!0,d=!0,c(),o(),y(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=function(e){return Z(this,null,function*(){Symbol.iterator in e?yield*ee(e[Symbol.iterator]()):yield*ee(e[Symbol.asyncIterator]())})}(e),r=[],n=[];let{promise:s,resolve:a}=Ae(),{promise:o,resolve:l}=Ae(),c=!1,u=!1,d=null,h=null,f=!1;const m=e=>{n.push(e),a(),({promise:s,resolve:a}=Ae())},p=V(H({},t),{verifyKeyPackets:!0,metadataOnly:!1});(()=>Y(this,null,function*(){d=yield this._createDecoder(e=>{if(l(),u)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i<t;i++)m(i<t-1?e.clone():e);else e.close()},e=>{f||(h=e,f=!0,a())});const e=this._createPacketSink();let t=null,s=null,g=-1;const k=()=>Y(this,null,function*(){oe(s),oe(d);let t=s;for(d.decode(t);t.sequenceNumber<g;){const i=Wo(n.length);for(;n.length+d.getDecodeQueueSize()>i&&!u;)({promise:o,resolve:l}=Ae()),yield o;if(u)break;const r=yield e.getNextPacket(t,p);oe(r),d.decode(r),t=r}g=-1}),y=()=>Y(this,null,function*(){oe(d),yield d.flush();for(let e=0;e<r.length;e++)m(null);r.length=0});try{for(var b,T,v,w=te(i);b=!(T=yield w.next()).done;b=!1){const i=T.value;if(Oo(i),u||this._track.input._disposed)break;const n=yield e.getPacket(i,p),a=n&&(yield e.getKeyPacket(i,p));a?(t&&(a.sequenceNumber!==s.sequenceNumber||n.timestamp<t.timestamp)&&(yield k(),yield y()),r.push(n.timestamp),g=Math.max(n.sequenceNumber,g),t=n,s=a):(-1!==g&&(yield k(),yield y()),m(null),t=null)}}catch(T){v=[T]}finally{try{b&&(T=w.return)&&(yield T.call(w))}finally{if(v)throw v[0]}}u||this._track.input._disposed||(-1!==g&&(yield k()),yield y()),c=!0,a()}))().catch(e=>{f||(h=e,f=!0,a())}).finally(()=>{null==d||d.close()});const g=this._track,k=()=>{for(const e of n)null==e||e.close()};return{next(){return Y(this,null,function*(){for(;;){if(g.input._disposed)throw u=!0,k(),new gl;if(u)return{value:void 0,done:!0};if(f)throw u=!0,k(),h;if(n.length>0){const e=n.shift();return oe(void 0!==e),l(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};yield s}})},return(){return Y(this,null,function*(){return u=!0,l(),a(),k(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}const Wo=e=>0===e?40:8;class Ho extends Uo{constructor(e,t,i,r,n,s){var a,o,l,c,u,d,h,f;super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=n,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new et,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const m=Mo.find(e=>e.supports(i,r));if(m)this.customDecoder=new m,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof lo))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();oe(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(at()){if("avc"===i&&this.decoderConfig.description){const e=Qt(fe(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=Jt(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig=V(H({},this.decoderConfig),{hardwareAcceleration:"prefer-software"})),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=ei(t),this.decoderConfig=V(H({},this.decoderConfig),{description:Gt(e)})))}}Se(this.decoderConfig.colorSpace)||(this.decoderConfig=V(H({},this.decoderConfig),{colorSpace:{primaries:null!=(o=null==(a=this.decoderConfig.colorSpace)?void 0:a.primaries)?o:"bt709",matrix:null!=(c=null==(l=this.decoderConfig.colorSpace)?void 0:l.matrix)?c:"bt709",transfer:null!=(d=null==(u=this.decoderConfig.colorSpace)?void 0:u.transfer)?d:"bt709",fullRange:null!=(f=null==(h=this.decoderConfig.colorSpace)?void 0:h.fullRange)&&f}}))}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){var e,t;return this.customDecoder?this.customDecoderQueueSize:(oe(this.decoder),Math.max(this.decoder.decodeQueueSize,null!=(t=null==(e=this.alphaDecoder)?void 0:e.decodeQueueSize)?t:0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(oe(this.decoder),it()||Fe(this.inputTimestamps,e.timestamp,e=>e),at()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const n of Wt(e.data,this.decoderConfig)){const r=Ht(e.data[n.offset]);if(i||(i=r>=1&&r<=5),r===Nt.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(n.offset,n.offset+n.length))}if(!this.decoderConfig.description)for(let e=0;e<t.length;e++){const i=t[e];if(Ht(i[0])!==Nt.SPS)continue;const r=Jt(i);r&&0!==r.maxDecFrameBuffering&&1!==r.bitstreamRestrictionFlag&&(t[e]=ei(r));break}const r=((e,t)=>{if(t.description){const i=3&fe(t.description)[4];return Xt(e,i+1)}return Kt(e)})(t,this.decoderConfig);e=new Tr(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=mi(e.data,this.decoderConfig);t&&(e=new Tr(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new jo),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();oe(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();oe(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=wi(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(null!=t?t:e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of ti(e,this.decoderConfig)){const i=ii(e[t.offset]);if(i===Lt.RASL_N||i===Lt.RASL_R)return!0}return!1}sampleHandler(e){if(it()){if(this.sampleQueue.length>0&&e.timestamp>=ce(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}Fe(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();oe(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}mergeAlpha(e,t){return Y(this,null,function*(){const i=Ae();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){oe(this.merger);const i=yield this.merger.merge(e,t);r.sample=new lo(i)}else r.sample=new lo(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(n){Me(this.finalSamples,r),this.onError(n)}finally{Me(this.mergeAlphaPromises,i.promise),i.resolve()}})}flush(){return Y(this,null,function*(){var e;if(this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(oe(this.decoder),yield Promise.all([this.decoder.flush(),null==(e=this.alphaDecoder)?void 0:e.flush()]),yield Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),it()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1})}close(){var e;this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(oe(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,null==(e=this.merger)||e.close());for(const t of this.sampleQueue)t.close();this.sampleQueue.length=0}}let Vo=null;class jo{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!Vo){const e=new Blob([`(${Ko.toString()})()`],{type:"application/javascript"});Vo=URL.createObjectURL(e)}const e=qe(navigator.hardwareConcurrency,1,4);for(let t=0;t<e;t++){const e=new Worker(Vo);e.addEventListener("message",e=>{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=Ae();this.pendingRequests.set(i,r);const n=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,n.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const Ko=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:n,alpha:s}=e.data;i=i.then(()=>Y(null,null,function*(){try{const e=yield r(n,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{n.close(),s.close()}}))});const r=(e,t)=>Y(null,null,function*(){const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),l=i.includes("P12"),c=r.includes("P10"),u=r.includes("P12");if(c!==o||u!==l)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return yield n(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return yield s(e,t,i);if("NV12"===i)return yield a(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)}),n=(e,t,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=new Uint8Array(4*d);yield e.copyTo(h);const f=yield o(t,c,u,1);for(let e=0,t=3;e<d;e++,t+=4)h[t]=f[e];const m={format:"RGBX"===i||"RGBA"===i?"RGBA":"BGRA",codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[h.buffer]};return new VideoFrame(h,m)}),s=(e,t,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=i.includes("P10"),h=i.includes("P12"),f=d||h?2:1;let m,p;i.startsWith("I420")?(m=Math.ceil(c/2),p=Math.ceil(u/2)):i.startsWith("I422")?(m=Math.ceil(c/2),p=u):(m=c,p=u);const g=c*u,k=g*f,y=m*p*f,b=new Uint8Array(k+2*y+g*f);yield e.copyTo(b);const T=yield o(t,c,u,f),v=k+2*y;b.set(T,v);const w={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[b.buffer]};return new VideoFrame(b,w)}),a=(e,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=Math.ceil(c/2)*Math.ceil(u/2),f=e.allocationSize();t&&t.byteLength===f||(t=new Uint8Array(f)),yield e.copyTo(t);const m=new Uint8Array(d+2*h+d);m.set(t.subarray(0,d),0);const p=d,g=d+h,k=d;for(let e=0;e<h;e++)m[p+e]=t[k+2*e],m[g+e]=t[k+2*e+1];const y=yield o(i,c,u,1);m.set(y,d+2*h);const b={format:"I420A",codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[m.buffer]};return new VideoFrame(m,b)}),o=(t,i,r,n)=>Y(null,null,function*(){const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),yield t.copyTo(e);const a=t.format;if("RGBA"===a||"BGRA"===a||"RGBX"===a||"BGRX"===a){const t="RGBA"===a||"RGBX"===a?0:2,n=i*r;for(let i=0;i<n;i++)e[i]=e[4*i+t];return e.subarray(0,n)}return e.subarray(0,i*r*n)})},Xo=e=>{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class $o extends qo{constructor(e,t={}){if(!(e instanceof rl))throw new TypeError("videoTrack must be an InputVideoTrack.");Xo(t),super(),this._track=e,this._decoderOptions=t}_createDecoder(e,t){return Y(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(ot("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getRotation();let n=yield this._track.getDecoderConfig();const s=yield this._track.getTimeResolution();return oe(i&&n),n=V(H({},n),{hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency}),new Ho(e,t,i,n,r,s)})}_createPacketSink(){return new zo(this._track)}getSample(e){return Y(this,arguments,function*(e,t={}){Oo(e);try{for(var i,r,n,s=te(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Go{constructor(e,t={}){var i,r,n;if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof rl))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&ko(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&Xo(t.decoderOptions),this._videoTrack=e,this._alpha=null!=(i=t.alpha)&&i,this._options=t,this._fit=null!=(r=t.fit)?r:"fill",this._videoSampleSink=new $o(e,t.decoderOptions),this._canvasPool=Array.from({length:null!=(n=t.poolSize)?n:0},()=>null)}_ensureInit(){var e;return null!=(e=this._initPromise)?e:this._initPromise=(()=>Y(this,null,function*(){var e;const t=this._options,i=this._videoTrack,r=null!=(e=t.rotation)?e:yield i.getRotation(),n=yield i.getSquarePixelWidth(),s=yield i.getSquarePixelHeight(),[a,o]=r%180===0?[n,s]:[s,n];let l=t.crop;l&&(l=go(l,a,o));let[c,u]=l?[l.width,l.height]:[a,o];const d=c/u;void 0!==t.width&&void 0===t.height?(c=t.width,u=Math.round(c/d)):void 0===t.width&&void 0!==t.height?(u=t.height,c=Math.round(u*d)):void 0!==t.width&&void 0!==t.height&&(c=t.width,u=t.height),this._width=c,this._height=u,this._rotation=r,this._crop=l}))()}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],n=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),n=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||nt()});oe(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:n,fillBlack:!this._alpha&&nt()});const a={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),a}getCanvas(e,t){return Y(this,null,function*(){Oo(e),yield this._ensureInit();const i=yield this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)})}canvases(e,t,i){return Z(this,null,function*(){yield new J(this._ensureInit()),yield*ee(Ue(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e)))})}canvasesAtTimestamps(e,t){return Z(this,null,function*(){yield new J(this._ensureInit()),yield*ee(Ue(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e)))})}}class Qo extends Uo{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new et,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const n=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const n=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(n*s)/s),e(t)},s=Do.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof Co))throw new TypeError("The argument passed to onSample must be an AudioSample.");n(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{n(new Co(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(oe(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(oe(this.decoder),null!=this.expectedFirstTimestamp||(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}flush(){return Y(this,null,function*(){this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(oe(this.decoder),yield this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0})}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(oe(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class Yo extends Uo{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,oe(Xi.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:n,littleEndian:s}=ar(this.codec);switch(this.inputSampleSize=n,n){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-q(2,7):"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const n=(1<<i|(15&r)<<i-4|1<<i-5)-33;return 0===t?n:-n})(e.getUint8(t)):"alaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let n=0;return n=4!==i?1<<i|(15&r)<<i-4|1<<i-5:r<<1|1,0===t?n:-n})(e.getUint8(t)):oe(!1);break;case 2:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint16(t,s)-q(2,15):"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):oe(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>Le(e,t,s)-q(2,23):"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>Le(e,t,i)<<8>>8)(e,t,s):oe(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-q(2,31):"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):oe(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):oe(!1);break;default:Oe(n),oe(!1)}switch(n){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+q(2,7)));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:Oe(n),oe(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=me(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,n=new ArrayBuffer(r),s=new DataView(n);for(let c=0;c<i*this.decoderConfig.numberOfChannels;c++){const e=c*this.inputSampleSize,i=c*this.outputSampleSize,r=this.readInputValue(t,e);this.writeOutputValue(s,i,r)}const a=i/this.decoderConfig.sampleRate;(null===this.currentTimestamp||Math.abs(e.timestamp-this.currentTimestamp)>=a)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=a;const l=new Co({format:this.outputFormat,data:n,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(l)}flush(){return Y(this,null,function*(){})}close(){}}class Jo extends qo{constructor(e){if(!(e instanceof nl))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}_createDecoder(e,t){return Y(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(ot("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getDecoderConfig();return oe(i&&r),Xi.includes(r.codec)?new Yo(e,t,r):new Qo(e,t,i,r)})}_createPacketSink(){return new zo(this._track)}getSample(e){return Y(this,arguments,function*(e,t={}){Oo(e);try{for(var i,r,n,s=te(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Zo{constructor(e){if(!(e instanceof nl))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new Jo(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}getBuffer(e,t){return Y(this,null,function*(){Oo(e);const i=yield this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)})}buffers(e,t,i){return Ue(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return Ue(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class el{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof rl}isAudioTrack(){return this instanceof nl}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}getInternalCodecId(){return Y(this,null,function*(){return this._backing.getInternalCodecId()})}get internalCodecId(){return tl(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}getLanguageCode(){return Y(this,null,function*(){return this._backing.getLanguageCode()})}get languageCode(){return tl(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}getName(){return Y(this,null,function*(){return this._backing.getName()})}get name(){return tl(this._backing.getName(),"name","getName")}getTimeResolution(){return Y(this,null,function*(){return this._backing.getTimeResolution()})}get timeResolution(){return tl(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}isRelativeToUnixEpoch(){return Y(this,null,function*(){return this._backing.isRelativeToUnixEpoch()})}getUnixTimeForTimestamp(e){return Y(this,null,function*(){return this._backing.getUnixTimeForTimestamp(e)})}hasUnixTimeMapping(){return Y(this,null,function*(){return null!==(yield this._backing.getUnixTimeForTimestamp(yield this.getFirstTimestamp()))})}getDisposition(){return Y(this,null,function*(){return this._backing.getDisposition()})}get disposition(){return tl(this._backing.getDisposition(),"disposition","getDisposition")}getBitrate(){return Y(this,null,function*(){return this._backing.getBitrate()})}getAverageBitrate(){return Y(this,null,function*(){return this._backing.getAverageBitrate()})}getFirstTimestamp(){return Y(this,null,function*(){var e;const t=yield this._backing.getFirstPacket({metadataOnly:!0});return null!=(e=null==t?void 0:t.timestamp)?e:0})}computeDuration(e){return Y(this,null,function*(){var t,i;const r=yield this._backing.getPacket(1/0,H({metadataOnly:!0},e)),n=(null!=(t=null==r?void 0:r.timestamp)?t:0)+(null!=(i=null==r?void 0:r.duration)?i:0);return je(n,yield this.getTimeResolution())})}getDurationFromMetadata(){return Y(this,arguments,function*(e={}){return this._backing.getDurationFromMetadata(e)})}computePacketStats(e=1/0,t){return Y(this,null,function*(){const i=new zo(this);let r=1/0,n=-1/0,s=0,a=0;try{for(var o,l,c,u=te(i.packets(void 0,void 0,H({metadataOnly:!0},t)));o=!(l=yield u.next()).done;o=!1){const t=l.value;if(s>=e&&t.timestamp>=n)break;r=Math.min(r,t.timestamp),n=Math.max(n,t.timestamp+t.duration),s++,a+=t.byteLength}}catch(l){c=[l]}finally{try{o&&(l=u.return)&&(yield l.call(u))}finally{if(c)throw c[0]}}return{packetCount:s,averagePacketRate:s?Number((s/(n-r)).toPrecision(16)):0,averageBitrate:s?Number((8*a/(n-r)).toPrecision(16)):0}})}isLive(){return Y(this,null,function*(){return null!==(yield this._backing.getLiveRefreshInterval())})}getLiveRefreshInterval(){return Y(this,null,function*(){return this._backing.getLiveRefreshInterval()})}canBePairedWith(e){if(!(e instanceof el))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&(this._backing.getPairingMask()&e._backing.getPairingMask())!==BigInt("0")}getPairableTracks(e){return Y(this,null,function*(){return this.input.getTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPairableVideoTracks(e){return Y(this,null,function*(){return this.input.getVideoTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPairableAudioTracks(e){return Y(this,null,function*(){return this.input.getAudioTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableVideoTrack(e){return Y(this,null,function*(){return this.input.getPrimaryVideoTrack(ll({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableAudioTrack(e){return Y(this,null,function*(){return this.input.getPrimaryAudioTrack(ll({filter:e=>e.canBePairedWith(this)},e))})}hasPairableTrack(e){return Y(this,null,function*(){e&&(e=il(e));const t=yield this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||(yield e(i))))return!0;return!1})}hasPairableVideoTrack(e){return e&&(e=il(e)),this.hasPairableTrack(t=>Y(this,null,function*(){return t.isVideoTrack()&&(!e||(yield e(t)))}))}hasPairableAudioTrack(e){return e&&(e=il(e)),this.hasPairableTrack(t=>Y(this,null,function*(){return t.isAudioTrack()&&(!e||(yield e(t)))}))}}const tl=(e,t,i)=>{if(ct(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},il=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return ct(r)?r.then(i):i(r)}:void 0};class rl extends el{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}getCodec(){return Y(this,null,function*(){return this._backing.getCodec()})}get codec(){return tl(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return Y(this,null,function*(){var e,t,i;return null!=(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:"prores"===(yield this._backing.getCodec())})}getCodedWidth(){return Y(this,null,function*(){return this._backing.getCodedWidth()})}get codedWidth(){return tl(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}getCodedHeight(){return Y(this,null,function*(){return this._backing.getCodedHeight()})}get codedHeight(){return tl(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}getRotation(){return Y(this,null,function*(){return this._backing.getRotation()})}get rotation(){return tl(this._backing.getRotation(),"rotation","getRotation")}getSquarePixelWidth(){return Y(this,null,function*(){return this._backing.getSquarePixelWidth()})}get squarePixelWidth(){return tl(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}getSquarePixelHeight(){return Y(this,null,function*(){return this._backing.getSquarePixelHeight()})}get squarePixelHeight(){return tl(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}getPixelAspectRatio(){return Y(this,null,function*(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=yt({num:(yield this.getSquarePixelWidth())*(yield this.getCodedHeight()),den:(yield this.getSquarePixelHeight())*(yield this.getCodedWidth())})})}get pixelAspectRatio(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=yt({num:tl(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*tl(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:tl(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*tl(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")})}getDisplayWidth(){return Y(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()})}get displayWidth(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(void 0!==i){const e=tl(i,"displayWidth","getDisplayWidth");if(null!==e)return e}const r=tl(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return tl(r,"displayWidth","getDisplayWidth")}getDisplayHeight(){return Y(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()})}get displayHeight(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(void 0!==i){const e=tl(i,"displayHeight","getDisplayHeight");if(null!==e)return e}const r=tl(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return tl(r,"displayHeight","getDisplayHeight")}getColorSpace(){return Y(this,null,function*(){return this._backing.getColorSpace()})}hasHighDynamicRange(){return Y(this,null,function*(){const e=yield this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix})}canBeTransparent(){return Y(this,null,function*(){return this._backing.canBeTransparent()})}getDecoderConfig(){return Y(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return Y(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return Y(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(oe(null!==t),Mo.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(yield VideoDecoder.isConfigSupported(e)).supported}catch(e){return Pt._error("Error during decodability check:",e),!1}})}determinePacketType(e){return Y(this,null,function*(){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=yield this.getCodec();if(null===t)return null;const i=yield this.getDecoderConfig();return oe(i),wi(t,i,e.data)})}computeFrameRateMetrics(){return Y(this,arguments,function*(e={}){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!mt(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const r=yield this.getTimeResolution(),n=null!=(t=e.targetPacketCount)?t:256,s=new zo(this),a=[];let o=-1/0,l=0;try{for(var c,u,d,h=te(s.packets(void 0,void 0,{metadataOnly:!0}));c=!(u=yield h.next()).done;c=!1){const e=u.value;if(a.length>=n&&e.timestamp>=o)break;a.push(e.timestamp),o=Math.max(o,e.timestamp),l++}}catch(u){d=[u]}finally{try{c&&(u=h.return)&&(yield u.call(h))}finally{if(d)throw d[0]}}const f=new Float64Array(a.length);for(let R=0;R<a.length;R++)f[R]=Math.round(a[R]*r);f.sort();let m=1;for(let R=1;R<f.length;R++)f[R]!==f[m-1]&&(f[m++]=f[R]);if(m<2)return{underlyingFrameRate:null,bestGuessFrameRate:r,minFrameRate:r,maxFrameRate:r,averageFrameRate:r,medianFrameRate:r,frameRateIsConstant:!0,probedPacketCount:l};const p=f.subarray(0,m),g=ul(p,r),k=null!=g?g:r,y=null!==g?r/g:null,b=new Map;let T=1/0,v=-1/0,w=0;for(let R=1;R<m;R++){const e=p[R]-p[R-1],t=null!==y?Math.max(1,Math.round(e/y)):e;b.set(t,(null!=(i=b.get(t))?i:0)+1),T=Math.min(T,t),v=Math.max(v,t),w+=t}const S=m-1,P=[...b.keys()].sort((e,t)=>e-t),I=S-1>>1,x=S>>1;let C=0,B=0,E=0;for(const R of P)if(E+=b.get(R),0===C&&E>I&&(C=R),E>x){B=R;break}const _=(k/C+k/B)/2;return{underlyingFrameRate:g,bestGuessFrameRate:null!==g?g:hl(_),minFrameRate:k/v,maxFrameRate:k/T,averageFrameRate:k*S/w,medianFrameRate:_,frameRateIsConstant:null!==g&&1===T&&1===v,probedPacketCount:l}})}}class nl extends el{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}getCodec(){return Y(this,null,function*(){return this._backing.getCodec()})}get codec(){return tl(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return Y(this,null,function*(){var e,t,i;return null==(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))||i})}getNumberOfChannels(){return Y(this,null,function*(){return this._backing.getNumberOfChannels()})}get numberOfChannels(){return tl(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}getSampleRate(){return Y(this,null,function*(){return this._backing.getSampleRate()})}get sampleRate(){return tl(this._backing.getSampleRate(),"sampleRate","getSampleRate")}getDecoderConfig(){return Y(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return Y(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return Y(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(oe(null!==t),Do.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(yield AudioDecoder.isConfigSupported(e)).supported}catch(e){return Pt._error("Error during decodability check:",e),!1}})}determinePacketType(e){return Y(this,null,function*(){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");return null===(yield this.getCodec())?null:"key"})}}const sl=e=>-(null!=e?e:-1/0),al=e=>-e,ol=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when provided, must be a function.");if(void 0!==e.sortBy&&"function"!==typeof e.sortBy)throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:e.filter?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("query.filter must return or resolve to a boolean.");return e},r=e.filter(t);return ct(r)?r.then(i):i(r)}:void 0,sortBy:e.sortBy?t=>{const i=e=>{if("number"!==typeof e&&(!Array.isArray(e)||!e.every(e=>"number"===typeof e)))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return e},r=e.sortBy(t);return ct(r)?r.then(i):i(r)}:void 0}},ll=(e,t)=>({filter:(null==e?void 0:e.filter)||(null==t?void 0:t.filter)?i=>{var r,n;const s=null==(n=null==(r=null==e?void 0:e.filter)?void 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t?(i=xl(e,!0),r=xl(e,!0)):(r=xl(e,!1),i=xl(e,!1)),4294967296*r+i},Rl=e=>4294967296*Cl(e)+Cl(e),Fl=e=>4294967296*El(e)+Cl(e),Al=e=>{const t=Bl(e),i=(e=>{bl(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},Ml=e=>{bl(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Dl=e=>{bl(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},Nl=(e,t)=>{bl(e,t);let i="";for(let r=0;r<t;r++)i+=String.fromCharCode(e.bytes[e.bufferPos++]);return i},Ol=(e,t,i)=>pe.decode(Tl(e,t)).split("\n").map(e=>e.trim()).filter(e=>{var t;return e.length>0&&!(null==(t=null==i?void 0:i.ignore)?void 0:t.call(i,e))});var Ll,zl,Ul,ql;(zl=Ll||(Ll={}))[zl.Unsynchronisation=128]="Unsynchronisation",zl[zl.ExtendedHeader=64]="ExtendedHeader",zl[zl.ExperimentalIndicator=32]="ExperimentalIndicator",zl[zl.Footer=16]="Footer",(ql=Ul||(Ul={}))[ql.ISO_8859_1=0]="ISO_8859_1",ql[ql.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",ql[ql.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",ql[ql.UTF_8=3]="UTF_8";const Wl=128,Hl=10,Vl=["Blues","Classic rock","Country","Dance","Disco","Funk","Grunge","Hip-hop","Jazz","Metal","New age","Oldies","Other","Pop","Rhythm and blues","Rap","Reggae","Rock","Techno","Industrial","Alternative","Ska","Death metal","Pranks","Soundtrack","Euro-techno","Ambient","Trip-hop","Vocal","Jazz & funk","Fusion","Trance","Classical","Instrumental","Acid","House","Game","Sound clip","Gospel","Noise","Alternative rock","Bass","Soul","Punk","Space","Meditative","Instrumental pop","Instrumental rock","Ethnic","Gothic","Darkwave","Techno-industrial","Electronic","Pop-folk","Eurodance","Dream","Southern 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u;if(0===c[28]&&0!==c[29]){const i=c[29];i>0&&(null!=t.trackNumber||(t.trackNumber=i)),e.skip(-30),u=Kl(e,28),e.skip(2)}else e.skip(-30),u=Kl(e,30);u&&(null!=t.comment||(t.comment=u));const d=vl(e);d<Vl.length&&(null!=t.genre||(t.genre=Vl[d]))},Kl=(e,t)=>{const i=Tl(e,t),r=ut(i.indexOf(0),i.length),n=i.subarray(0,r);let s="";for(let a=0;a<n.length;a++)s+=String.fromCharCode(n[a]);return s.trimEnd()},Xl=e=>{const t=e.filePos,i=Nl(e,3),r=vl(e),n=vl(e),s=vl(e),a=Cl(e);if("ID3"!==i||255===r||255===n||0!==(2155905152&a))return e.filePos=t,null;let o=mr(a);return s&Ll.Footer&&(o+=Hl),{majorVersion:r,revision:n,flags:s,size:o}},$l=(e,t,i)=>{var r,n,s,a,o,l;if(![2,3,4].includes(t.majorVersion))return void Pt._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Ll.Footer?t.size-Hl:t.size,u=Tl(e,c),d=new Gl(t,u);if(t.flags&Ll.Unsynchronisation&&3===t.majorVersion&&d.ununsynchronizeAll(),t.flags&Ll.ExtendedHeader){const 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e=null!=(n=(r=i.raw).TXXX)?n:r.TXXX={},t=d.readId3V2TextEncoding(),s=d.readId3V2Text(t,u),a=d.readId3V2Text(t,u);null!=e[s]||(e[s]=a)}else"T"===e.id[0]?null!=(s=i.raw)[a=e.id]||(s[a]=d.readId3V2EncodingAndText(u)):null!=(o=i.raw)[l=e.id]||(o[l]=d.readBytes(e.size));switch(d.pos=c,e.id){case"TIT2":case"TT2":null!=i.title||(i.title=d.readId3V2EncodingAndText(u));break;case"TIT3":case"TT3":null!=i.description||(i.description=d.readId3V2EncodingAndText(u));break;case"TPE1":case"TP1":null!=i.artist||(i.artist=d.readId3V2EncodingAndText(u));break;case"TALB":case"TAL":null!=i.album||(i.album=d.readId3V2EncodingAndText(u));break;case"TPE2":case"TP2":null!=i.albumArtist||(i.albumArtist=d.readId3V2EncodingAndText(u));break;case"TRCK":case"TRK":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.trackNumber||(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.tracksTotal||(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.discNumber||(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.discsTotal||(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=d.readId3V2EncodingAndText(u);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==Vl[e]){null!=i.genre||(i.genre=Vl[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==Vl[e]){null!=i.genre||(i.genre=Vl[e]);break}}null!=i.genre||(i.genre=e)}break;case"TDRC":case"TDAT":{const e=d.readId3V2EncodingAndText(u),t=new Date(e);Number.isNaN(t.getTime())||null!=i.date||(i.date=t)}break;case"TYER":case"TYE":{const e=d.readId3V2EncodingAndText(u),t=Number.parseInt(e,10);Number.isInteger(t)&&(null!=i.date||(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.lyrics||(i.lyrics=d.readId3V2Text(e,u))}break;case"COMM":case"COM":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.comment||(i.comment=d.readId3V2Text(e,u))}break;case"APIC":case"PIC":{const e=d.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=d.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=d.readId3V2Text(e,u);const n=d.readU8(),s=d.readId3V2Text(e,u).trimEnd(),a=u-d.pos;if(a>=0){const e=d.readBytes(a);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===n?"coverFront":4===n?"coverBack":"unknown",description:s})}}break;default:d.pos+=e.size}d.pos=u}}};class Gl{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 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this.pos=i+Math.min(e+1,r.length),pe.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class Ql{constructor(e){this.host=e,this.closed=!1,this.resumes=new WeakMap}ensure(e){if(this.closed)return null;if(this.host.audioContext)return this.host.audioContext;const t=window.AudioContext||window.webkitAudioContext;let i;try{i=new t({sampleRate:e})}catch(n){i=new t}if(this.closed)return i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null;let r=null;try{r=i.createGain(),r.connect(i.destination);const e=this.host.muted?0:this.host.volume;return r.gain.value=e*e,this.closed?(r.disconnect(),i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null):(this.host.audioContext=i,this.host.gainNode=r,i)}catch(s){try{null==r||r.disconnect()}catch(a){console.warn("MediaBunny gain setup cleanup:",a)}throw i.close().catch(e=>console.warn("MediaBunny context 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n=function(e,t,i,r){const n=e.audioContextStartTime+(t-e.playbackTimeAtStart)/e.playbackRate,s=(n+i/e.playbackRate-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;return{startAt:Math.max(n,r),offset:n<r?(r-n)*e.playbackRate:null,endMediaTime:s}}(this.host,t,e.duration,i.currentTime);if(null!==n.offset&&n.offset>=e.duration)return;const s=i.createBufferSource();this.host.queuedNodes.add(s);try{s.buffer=e,s.connect(r),s.playbackRate.value=this.host.playbackRate,s.onended=()=>{if(this.host.queuedNodes.has(s))try{this.release(s,!1)}catch(e){console.warn("MediaBunny ended node cleanup:",e)}},null===n.offset?s.start(n.startAt):s.start(n.startAt,n.offset),this.host.latestScheduledEndTime=Math.max(this.host.latestScheduledEndTime,n.endMediaTime)}catch(a){try{this.release(s,!0)}catch(o){console.warn("MediaBunny audio node cleanup:",o)}throw a}}}const Jl=Symbol("cancelled");class Zl{constructor(){this.cancelled=!1,this.waits=new Set,this.timers=new Map}wait(e){return new 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t=this.closing.get(e);t||(t=Promise.resolve().then(()=>e.return()).then(()=>{}),this.closing.set(e,t)),yield t})}cancel(){var e;null==(e=this.task)||e.cancel(),this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e))}run(e){return Y(this,null,function*(){if(this.host.asyncId!==e)return;this.cancel();const t=this.host.audioSink,i=this.host.audioContext;if(!t||!i||this.host.paused||this.host.asyncId!==e)return;const r=new Zl;this.task=r;let n=null;const s=()=>!r.cancelled&&this.task===r&&this.host.asyncId===e&&!this.host.paused&&this.host.audioContext===i&&(!n||this.host.audioIterator===n);try{for(n=t.buffers(this.host.currentTime),this.host.audioIterator=n;s();){const e=[];let t=!1;for(let i=0;i<16;i++){const i=yield r.wait(n.next());if(i===Jl||!s())return;if(i.done){t=!0;break}e.push(i.value)}if(e.length&&"suspended"===i.state){if((yield r.wait(this.contexts.resume(i)))===Jl||!s())return;tc(this.host.events,s,["canplay","playing"])}for(const i of e){if(!s())return;this.nodes.schedule(i)}if(t)return;if(!(yield r.delay(0))||!s())return;for(;this.host.latestScheduledEndTime-this.host.currentTime>1;)if(!(yield r.delay(50))||!s())return}}catch(a){if(s())throw a}finally{r.cancel(),this.task===r&&(this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e)))}})}}class rc{constructor(e,d){X(this,u),X(this,t,!1),X(this,i,0),X(this,r),X(this,n),X(this,s),X(this,a,null),X(this,o,null),X(this,l,null),X(this,c),this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set,$(this,r,new Ql(this)),$(this,n,new Yl(this)),$(this,s,new ic(this,K(this,r),K(this,n))),$(this,c,d)}get currentTime(){return(e=this).paused||!e.audioContext?e.playbackTimeAtStart:(e.audioContext.currentTime-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;var e}ensureAudioContext(e){K(this,r).ensure(e)}updateGain(){K(this,r).updateGain()}stopQueuedNodes(){K(this,n).stop()}stopIterator(){return Y(this,null,function*(){yield K(this,s).stopIterator()})}handleNoAudioTrack(){K(this,t)||(this.audioSink=null,this.ensureAudioContext())}cancelPending(){Q(this,i)._++;try{this.pause()}finally{$(this,l,null),this.input=null,this.audioSink=null}}load(e,r){return Y(this,null,function*(){if(K(this,t))return;this.cancelPending();const n=K(this,i);this.playbackTimeAtStart=0,this.audioContextStartTime=0,this.latestScheduledEndTime=0;const s=Promise.resolve().then(()=>G(this,u,d).call(this,e,n,r));$(this,l,s);try{yield s}finally{K(this,l)===s&&$(this,l,null)}})}runIterator(e){return Y(this,null,function*(){K(this,t)||(yield K(this,s).run(e))})}play(){return Y(this,null,function*(){if(K(this,t))return;if(K(this,o))return K(this,o);if(!this.paused)return;const e=new Zl;$(this,a,e);const r=K(this,i),n=G(this,u,f).call(this,e,r);$(this,o,n);try{yield n}finally{K(this,a)===e&&($(this,a,null),$(this,o,null))}})}pause(){var e;this.paused||(this.playbackTimeAtStart=this.currentTime),this.paused=!0,this.asyncId++,null==(e=K(this,a))||e.cancel(),$(this,a,null),$(this,o,null),K(this,s).cancel(),this.stopQueuedNodes()}seek(e){return Y(this,null,function*(){var i,r;if(K(this,t))return;const n=!this.paused;K(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=null!=(r=null==(i=this.audioContext)?void 0:i.currentTime)?r:0,this.latestScheduledEndTime=this.playbackTimeAtStart;const a=++this.asyncId;n&&G(this,u,h).call(this,a)})}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){var i,r;if(K(this,t)||e===this.playbackRate)return;const n=this.currentTime;K(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=n,this.audioContextStartTime=null!=(r=null==(i=this.audioContext)?void 0:i.currentTime)?r:0,this.playbackRate=e,this.latestScheduledEndTime=n;const a=++this.asyncId;this.paused||G(this,u,h).call(this,a)}destroy(){if(K(this,t))return;$(this,t,!0),Q(this,i)._++;const e=[];for(const t of[()=>this.pause(),()=>K(this,r).destroy()])try{t()}catch(n){e.push(n)}if(this.input=null,this.audioSink=null,$(this,l,null),e.length)throw e[0]}}t=new WeakMap,i=new WeakMap,r=new WeakMap,n=new WeakMap,s=new WeakMap,a=new WeakMap,o=new WeakMap,l=new WeakMap,c=new WeakMap,u=new WeakSet,d=function(e,r,n){return Y(this,arguments,function*({input:e,audioTrack:r,duration:n},s,a){const o=()=>!K(this,t)&&K(this,i)===s;if(o()){this.input=e,this.duration=n;try{const e=r&&null!==r.codec&&(yield r.canDecode());if(!o())return;if(e){if(this.ensureAudioContext(r.sampleRate),!o())return;this.audioSink=new Zo(r)}else this.handleNoAudioTrack();o()&&(null==a||a())}catch(l){if(o())throw l}}})},h=function(e){this.runIterator(e).catch(i=>{if(!K(this,t)&&e===this.asyncId){try{this.pause()}catch(r){console.warn("MediaBunny audio failure cleanup:",r)}try{K(this,c)?K(this,c).call(this,i):this.events.emit("error",i)}catch(r){console.warn("MediaBunny audio error listener:",r)}}})},f=function(e,n){return Y(this,null,function*(){const s=()=>!K(this,t)&&!e.cancelled&&K(this,i)===n;try{const t=K(this,r).ensure();if(!t||!s())return;if("suspended"===t.state){if((yield e.wait(K(this,r).resume(t)))===Jl||!s())return}if(K(this,l)){if((yield e.wait(K(this,l)))===Jl||!s())return}this.audioContextStartTime=t.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1,G(this,u,h).call(this,++this.asyncId)}catch(a){if(s())throw a}})};const nc=new WeakMap;function sc(e,t,i){return Y(this,null,function*(){var r;const{input:n,loadSeq:s}=e;if(!(null==(r=e.media)?void 0:r.isHls)||!n||e.destroyed)return;const a={};nc.set(e,a);const o=()=>!e.destroyed&&e.loadSeq===s&&e.input===n&&nc.get(e)===a;for(;o();){const r=e.media;if(!(null==r?void 0:r.isHls))return;let s;try{s=yield i(n,r,t,o)}catch(l){if(!o())return;if(e.media===r)throw l;continue}if(!o())return;if(e.media===r){if(s)try{yield e.replaceTracks(s)}catch(l){if(o())throw l}return}}})}function ac(e,t,i,r){return Y(this,null,function*(){var n;const s=yield e.getVideoTracks();if(!r())return null;const a="auto"===i?yield e.getPrimaryVideoTrack():null!=(n=s.find(e=>e.id===i))?n:t.videoTrack;if(!r()||!a)return null;let o=t.audioTrack,l=t.audioMode;return o&&a.canBePairedWith(o)||(o=yield a.getPrimaryPairableAudioTrack(),l="auto"),{videoTrack:a,audioTrack:o,videoMode:"auto"===i?"auto":"manual",audioMode:l}})}function oc(e,t,i,r){return Y(this,null,function*(){var n;const s=yield e.getAudioTracks();if(!r())return null;const a="auto"===i?t.videoTrack?yield t.videoTrack.getPrimaryPairableAudioTrack():yield e.getPrimaryAudioTrack():null!=(n=s.find(e=>e.id===i))?n:t.audioTrack;if(!r()||!a)return null;let o=t.videoTrack,l=t.videoMode;return o&&a.canBePairedWith(o)||(o=yield a.getPrimaryPairableVideoTrack(),l="auto"),{videoTrack:o,audioTrack:a,videoMode:l,audioMode:"auto"===i?"auto":"manual"}})}function lc(e){return Y(this,null,function*(){var t,i;return null!=(i=null!=(t=yield e.getAverageBitrate())?t:yield e.getBitrate())?i:0})}const cc=/\.m3u8(?:$|[?#])/i;function uc(e){return"string"===typeof e&&cc.test(e)}function dc(e){const t=function(e){return"string"===typeof e?new ua(e):e instanceof Blob?new aa(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new fa(e):null!=e?e:null}(e);return t?new ml({source:t,formats:uc(e)?eo:Za}):null}class hc{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){var e;return null==(e=this.controller)?void 0:e.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}wait(e,t){return Y(this,null,function*(){try{yield Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}})}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,null==e||e.dispose()}cancel(){var e;if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),null==(e=this.controller)||e.abort(),this.disposeInput()}}}function fc(e){return Y(this,arguments,function*({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),n=t||i,s=Boolean(n&&(yield n.isLive()));let a=Number.NaN;return r.length>0&&(a=yield e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==a||s||(a=yield e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:null!=a?a:Number.NaN})}function mc(){let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}}class pc{constructor(e){this.host=e,this.wanted=!1,this.playing=null,this.seeking=null}operation(){return V(H({},mc()),{source:this.host.loadSeq,complete:mc()})}current(e,t){return!this.host.destroyed&&e.source===this.host.loadSeq&&this[t]===e}cancelPlay(){const e=this.playing;this.playing=null,null==e||e.resolve()}invalidate(){this.cancelPlay(),this.wanted=!1;const e=this.seeking;this.seeking=null,null==e||e.complete.resolve(),null==e||e.resolve(),this.host.seeking=!1}ended(){this.wanted=!1,this.cancelPlay()}stop(){this.host.paused||(this.host.paused=!0,this.stopEngines(),this.host.events.emit("pause"))}stopEngines(){const e=[];for(const i of[()=>this.host.audio.pause(),()=>this.host.video.stop()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}pause(){this.wanted=!1,this.cancelPlay(),this.stop()}play(){if(this.host.destroyed)return Promise.resolve();if(this.wanted=!0,this.playing)return this.playing.promise;if(this.host.ended)return this.seek(0,!0);if(!this.host.paused&&!this.seeking)return Promise.resolve();const e=this.operation();return this.playing=e,this.runPlay(e).then(e.resolve,e.reject),e.promise}runPlay(e){return Y(this,null,function*(){const t=()=>this.current(e,"playing")&&this.wanted;try{for(;this.seeking;)if(yield this.seeking.complete.promise,!t())return;if(!t())return;if(this.host.paused=!1,yield this.host.audio.play(),!t())return void(this.wanted&&!this.host.destroyed||this.host.audio.pause());this.host.video.start(this.host.audio),tc(this.host.events,t,["play","playing"])}catch(i){if(!t())return;this.wanted=!1,this.host.paused=!0;try{this.stopEngines()}catch(r){console.warn("MediaBunny play cleanup error:",r)}throw i}finally{this.playing===e&&(this.playing=null)}})}seek(e,t){return this.position(t=>Y(this,null,function*(){const i=this.host.audio.seek(e),r=t()?this.host.video.seek(e):Promise.resolve();yield Promise.all([i,r])}),["seeked"],!1,t)}replace(e,t){return this.position(i=>Y(this,null,function*(){e.duration=yield fc(e),i()&&(this.host.media=e,yield Promise.all([this.host.video.load(e),this.host.audio.load(e)]),i()&&(ec(this.host),yield Promise.all([this.host.video.seek(t),this.host.audio.seek(t)]),i()&&(this.host.readyState=4,this.host.networkState=1)))}),["loadedmetadata","durationchange","progress","loadeddata","canplay","canplaythrough","seeked"],!0)}position(e,t,i,r){if(this.host.destroyed)return Promise.resolve();this.wanted=null!=r?r:this.seeking?this.wanted:!this.host.paused,this.cancelPlay();const n=this.seeking,s=this.operation();return this.seeking=s,null==n||n.complete.resolve(),null==n||n.resolve(),this.runPosition(s,e,t,i).then(s.resolve,s.reject),s.promise}runPosition(e,t,i,r){return Y(this,null,function*(){const n=()=>this.current(e,"seeking");let s=!1;try{if(r&&this.stop(),!n())return;if(this.host.ended=!1,this.host.seeking=!0,tc(this.host.events,n,["seeking","waiting"]),!n())return;if(r||this.stop(),!n())return;if(yield t(n),!n())return;if(this.host.seeking=!1,e.complete.resolve(),tc(this.host.events,n,i),!n())return;this.seeking=null,s=this.wanted}catch(a){if(!n())return;throw this.host.seeking=!1,this.wanted=!1,this.cancelPlay(),this.host.reportError(a),a}finally{e.complete.resolve(),this.seeking===e&&(this.seeking=null)}s&&(yield this.play())})}}const gc=new WeakMap,kc=new WeakMap;function yc(e){const t=kc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.next()).then(e=>{var t;return null!=(t=e.value)?t:null});kc.set(e,i);const r=()=>{kc.get(e)===i&&kc.delete(e)};return i.then(r,r),i}function bc(e,t,i,r,n){const s=i?Math.max(.06,r/Math.max(1,n)):0;return i&&e<t-s?"skip":e<=t+s?"draw":"queue"}class Tc{constructor(){this.image=null}cancel(){this.image&&(this.image.onload=null,this.image.onerror=null,this.image=null)}draw(e,t,i,r){this.cancel();const n=new Image;this.image=n,n.onload=()=>{if(this.image===n&&t()){this.cancel();try{i(n)}catch(e){r(e)}}},n.onerror=()=>{this.image===n&&this.cancel()},n.src=e}}class vc{constructor(e,t,i,r){this.host=e,this.ready=t,this.draw=i,this.failure=r,this.stopped=!1,this.closed=!1,this.scheduled=null,this.fetching=null}current(e){return!this.closed&&!this.stopped&&this.host.asyncId===e}update(e){return Y(this,null,function*(){var t;const i=this.host.videoIterator;if(!i||!this.ready()||!this.current(e)||this.host.isFetching)return;const r={};this.fetching=r,this.host.isFetching=!0;const n=()=>this.current(e)&&this.host.videoIterator===i;try{for(;n();){const e=yield yc(i);if(!n()||!e)return;const r=null==(t=this.host.audioClock)?void 0:t.currentTime;if(void 0===r)return;const s=bc(e.timestamp,r,this.host.dropLateFrames,this.host.avSyncTolerance,this.host.playbackRate);if("skip"!==s){if("draw"!==s)return void(this.host.nextFrame=e);this.draw(e)}}}catch(s){if(n())throw s}finally{this.fetching===r&&(this.fetching=null,this.host.isFetching=!1)}})}request(e){this.update(e).catch(t=>{this.current(e)&&(this.stop(),this.report(t))})}report(e){try{this.failure(e)}catch(t){console.warn("MediaBunny video error listener:",t)}}cancelFrame(){null!==this.scheduled&&(cancelAnimationFrame(this.scheduled),this.scheduled=null)}schedule(e){if(!this.current(e))return;this.cancelFrame();const t=requestAnimationFrame(()=>{if(this.scheduled===t&&this.current(e)){this.scheduled=null;try{this.render()}catch(i){this.stop(),this.report(i)}}});this.scheduled=t,this.host.rafId=t}render(){const e=this.host.asyncId,t=()=>this.current(e);if(!t()||!this.host.audioClock)return;const i=this.host.audioClock.currentTime,r=Date.now();if(r-this.host.lastTimeUpdate>=this.host.timeupdateInterval){if(this.host.events.emit("timeupdate"),!t())return;this.host.lastTimeUpdate=r}if(this.ready()){if(Number.isFinite(this.host.duration)&&i>=this.host.duration){this.stop(),this.host.stalled=!1;const e=this.host.asyncId;return void tc(this.host.events,()=>!this.closed&&this.host.asyncId===e,["ended","pause","canplay"])}if(this.host.nextFrame&&this.host.nextFrame.timestamp<=i){if(this.draw(this.host.nextFrame),this.host.nextFrame=null,this.request(e),this.host.stalled){if(tc(this.host.events,t,["canplay","playing"]),!t())return;this.host.stalled=!1}}else this.host.nextFrame||(this.request(e),Number.isFinite(this.host.duration)&&i<this.host.duration&&!this.host.stalled&&(this.host.stalled=!0,this.host.events.emit("waiting")));this.schedule(e)}else this.schedule(e)}start(e){this.closed||(this.stop(),this.stopped=!1,this.host.audioClock=e,this.host.stalled=!1,this.host.nextFrame||this.request(this.host.asyncId),this.schedule(this.host.asyncId))}stop(){this.stopped=!0,this.host.asyncId++,this.cancelFrame(),this.fetching=null,this.host.isFetching=!1}destroy(){this.closed||(this.stop(),this.closed=!0)}}class wc{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:n=.12,dropLateFrames:s=!1,poster:a="",preflightRange:o=!1,onError:l}){X(this,P),X(this,m,0),X(this,p,0),X(this,g,null),X(this,k,null),X(this,y,null),X(this,b,!1),X(this,T,!1),X(this,v,new Tc),X(this,w),X(this,S),this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=n,this.dropLateFrames=s,this.poster=a,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1,$(this,S,l),$(this,w,new vc(this,()=>!K(this,T),e=>G(this,P,E).call(this,e,!0),e=>G(this,P,C).call(this,e)))}preflight(e,t,i){return Y(this,null,function*(){return function(e,t,i,r,n=()=>!0){return Y(this,null,function*(){if((null==r?void 0:r.aborted)||!n())return!1;if(!t||"string"!==typeof e||uc(e))return!0;try{const t=yield fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if((null==r?void 0:r.aborted)||!n())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!((null==r?void 0:r.aborted)||!n())&&(console.warn("Preflight check failed:",s),!0)}})}(e,this.preflightRange,this.events,t,i)})}drawPoster(){if(K(this,b)||!this.poster||this.posterDrawn)return;const e=K(this,m);K(this,v).draw(this.poster,()=>G(this,P,I).call(this,e),e=>{this.clear(),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,G(this,P,x).call(this).drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e=>G(this,P,C).call(this,e))}stopIterator(){return Y(this,null,function*(){const e=this.videoIterator;this.videoIterator=null,this.nextFrame=null,yield function(e){if(!e)return Promise.resolve();const t=gc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.return()).then(()=>{});return gc.set(e,i),i}(e)})}clear(){G(this,P,x).call(this).clearRect(0,0,this.canvas.width,this.canvas.height)}cancelPending(){Q(this,m)._++,Q(this,p)._++,this.stop(),G(this,P,B).call(this),K(this,v).cancel(),$(this,T,!1),$(this,g,null),$(this,k,null),$(this,y,null),this.videoSink=null,this.input=null}load(e,t){return Y(this,null,function*(){if(K(this,b))return;this.cancelPending();const i=K(this,m),r=K(this,p);$(this,T,!0);const n=Promise.resolve().then(()=>G(this,P,_).call(this,e,i,r,t));$(this,g,n);try{yield n}finally{K(this,g)===n&&$(this,g,null)}})}handleNoVideoTrack(){K(this,b)||(this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster())}resetIterator(e){return Y(this,null,function*(){if(K(this,b))return;const t=K(this,m),i=++Q(this,p)._,r=K(this,g);this.stop(),K(this,v).cancel(),$(this,T,!0);try{r&&(yield r),yield G(this,P,R).call(this,e,t,i)}catch(n){if(G(this,P,I).call(this,t)&&K(this,p)===i)throw G(this,P,B).call(this),n}finally{G(this,P,I).call(this,t)&&K(this,p)===i&&$(this,T,!1)}})}updateNextFrame(e){return Y(this,null,function*(){yield K(this,w).update(e)})}render(){K(this,w).render()}start(e){K(this,w).start(e)}stop(){K(this,w).stop()}seek(e){return Y(this,null,function*(){yield this.resetIterator(e)})}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){K(this,b)||($(this,b,!0),Q(this,m)._++,K(this,w).destroy(),K(this,v).cancel(),G(this,P,B).call(this),this.posterDrawn=!1,$(this,k,null),$(this,y,null),this.videoSink=null,this.input=null,this.audioClock=null)}}m=new WeakMap,p=new WeakMap,g=new WeakMap,k=new WeakMap,y=new WeakMap,b=new WeakMap,T=new WeakMap,v=new WeakMap,w=new WeakMap,S=new WeakMap,P=new WeakSet,I=function(e){return!K(this,b)&&K(this,m)===e},x=function(){if(!this.ctx)throw new Error("Canvas 2D context is unavailable.");return this.ctx},C=function(e){K(this,b)||(G(this,P,B).call(this),K(this,S)?K(this,S).call(this,e):this.events.emit("error",e))},B=function(){this.stopIterator().catch(e=>console.warn("MediaBunny iterator cleanup error:",e))},E=function(e,t){K(this,v).cancel(),t&&this.clear(),G(this,P,x).call(this).drawImage(e.canvas,0,0)},_=function(e,t,i,r){return Y(this,null,function*(){if(G(this,P,I).call(this,t))try{this.clear(),this.posterDrawn=!1;const{input:n,videoTrack:s,duration:a}=e;if(this.input=n,this.duration=a,!s)return this.handleNoVideoTrack(),void(null==r||r());const o=null!==s.codec&&(yield s.canDecode());if(!G(this,P,I).call(this,t))return;if(!o)return this.handleNoVideoTrack(),void(null==r||r());const l=yield s.canBeTransparent();if(!G(this,P,I).call(this,t))return;$(this,k,()=>new Go(s,{poolSize:2,fit:"contain",alpha:l})),this.videoSink=K(this,k).call(this),this.width=s.displayWidth,this.height=s.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,null==r||r(),G(this,P,I).call(this,t)&&(yield G(this,P,R).call(this,0,t,i))}catch(n){if(G(this,P,I).call(this,t))throw G(this,P,B).call(this),n}finally{G(this,P,I).call(this,t)&&K(this,p)===i&&$(this,T,!1)}})},R=function(e,t,i){return Y(this,null,function*(){if(!G(this,P,I).call(this,t)||K(this,p)!==i)return;G(this,P,B).call(this),K(this,k)&&this.videoSink===K(this,y)&&(this.videoSink=K(this,k).call(this));const r=this.videoSink;if(!r||!G(this,P,I).call(this,t))return;$(this,y,r);const n=r.canvases(e);this.videoIterator=n;const s=()=>G(this,P,I).call(this,t)&&K(this,p)===i&&this.videoIterator===n,a=yield yc(n);if(!s())return;const o=yield yc(n);s()&&(this.nextFrame=o,a?G(this,P,E).call(this,a,!1):this.drawPoster())})};class Sc{constructor({canvas:e,ctx:t,events:i,option:r={}}){var n,s,a,o,l;X(this,F),this.events=i,this.option=r,this.audio=new rc(i,e=>{try{this.pause()}catch(t){console.warn("MediaBunny audio coordinator cleanup:",t)}this.reportError(e)}),this.video=new wc({canvas:e,ctx:t,events:i,timeupdateInterval:null!=(n=r.timeupdateInterval)?n:250,avSyncTolerance:null!=(s=r.avSyncTolerance)?s:.12,dropLateFrames:null!=(a=r.dropLateFrames)&&a,poster:null!=(o=r.poster)?o:"",preflightRange:null!=(l=r.preflightRange)&&l,onError:e=>{try{this.pause()}catch(t){console.warn("MediaBunny video failure cleanup:",t)}this.reportError(e)}}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,$(this,F,new pc(this)),i.addEventListener("ended",()=>{this.destroyed||(this.ended=!0,this.paused=!0,K(this,F).ended(),this.audio.pause())})}load(e){return Y(this,null,function*(){var t,i;if(this.destroyed)return;const r=++this.loadSeq;if(K(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),null==(t=this.loadSession)||t.cancel(),r!==this.loadSeq||this.destroyed)return;if(this.pause(),r!==this.loadSeq||this.destroyed)return;this.disposeInput();const n=new hc;this.loadSession=n,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,n.defer(()=>this.events.emit("waiting")),n.defer(()=>this.events.emit("loadstart"));const s=Number.isFinite(this.option.loadTimeout)&&null!=(i=this.option.loadTimeout)?i:0;try{yield n.wait(this.performLoad(e,r,n),s)}catch(a){if(r!==this.loadSeq)return;const e=++this.loadSeq;if(K(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),n.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.reportError(a)}})}performLoad(e,t){return Y(this,arguments,function*(e,t,i=this.loadSession){const r=()=>!this.destroyed&&t===this.loadSeq;if(!i||!(yield this.video.preflight(e,i.signal,r))||!r())return;const n=dc(e);if(!n)return this.video.handleNoVideoTrack(),void(r()&&this.audio.handleNoAudioTrack());i.own(n);const s=yield function(e,t){return Y(this,null,function*(){const i=yield e.getPrimaryVideoTrack(),r=i?yield i.getPrimaryPairableAudioTrack():yield e.getPrimaryAudioTrack(),n=yield fc({input:e,videoTrack:i,audioTrack:r}),s=i||r,a=uc(t);return{input:e,videoTrack:i,audioTrack:r,duration:n,isLive:!Number.isFinite(n)&&Boolean(s&&(yield s.isLive())),isHls:a,videoMode:a?"auto":"manual",audioMode:a?"auto":"manual"}})}(n,e);if(!r())return;if(!s.videoTrack&&!s.audioTrack)throw this.video.handleNoVideoTrack(),this.video.duration=Number.NaN,this.audio.duration=Number.NaN,new Error("Input has no audio or video tracks.");this.input=n,this.media=s;const a=function(e,t){let i=!1,r=!1,n=!1;function s(s){t()&&!n&&("video"===s?i=!0:r=!0,i&&r&&(n=!0,e()))}return{video:()=>s("video"),audio:()=>s("audio")}}(()=>{ec(this),this.readyState=1,tc(this.events,r,["loadedmetadata","durationchange","progress"])},r);try{const e=this.video.load(s,a.video),t=r()?this.audio.load(s,a.audio):Promise.resolve();if(yield Promise.all([e,t]),!r())return;ec(this),this.readyState=4,this.networkState=1,tc(this.events,r,["loadeddata","canplay","canplaythrough","progress"])}catch(o){if(!r())return;throw console.error("MediaBunny load error:",o),o}})}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){var e;null==(e=this.loadSession)||e.disposeInput(),this.input=null,this.media=null}replaceTracks(e){return Y(this,null,function*(){if(this.media&&!this.destroyed)return K(this,F).replace(H(H({},this.media),e),this.currentTime)})}selectHlsQuality(e){return Y(this,null,function*(){return function(e,t){return sc(e,t,ac)}(this,e)})}selectHlsAudio(e){return Y(this,null,function*(){return function(e,t){return sc(e,t,oc)}(this,e)})}getHlsState(){return Y(this,null,function*(){const e=this.media,t=this.loadSeq;if(this.destroyed)return null;try{const i=yield function(e){return Y(this,null,function*(){var t,i,r,n;if(!(null==e?void 0:e.isHls)||!e.input)return null;const[s,a]=yield Promise.all([e.input.getVideoTracks(),e.videoTrack?e.videoTrack.getPairableAudioTracks():[]]),[o,l]=yield Promise.all([Promise.all(s.map((e,t)=>Y(null,null,function*(){return{id:e.id,track:e,index:t,name:yield e.getName(),height:yield e.getDisplayHeight(),bitrate:yield lc(e)}}))),Promise.all(a.map((e,t)=>Y(null,null,function*(){const i=yield e.getName(),r=yield e.getLanguageCode();return{id:e.id,track:e,index:t,name:i,lang:r,language:r,bitrate:yield lc(e)}})))]);return{levels:o,audios:l,currentLevel:e.videoTrack&&null!=(t=o.find(t=>{var i;return t.id===(null==(i=e.videoTrack)?void 0:i.id)}))?t:null,currentAudio:e.audioTrack&&null!=(i=l.find(t=>{var i;return t.id===(null==(i=e.audioTrack)?void 0:i.id)}))?i:null,videoMode:null!=(r=e.videoMode)?r:"auto",audioMode:null!=(n=e.audioMode)?n:"auto"}})}(e);return this.destroyed||this.loadSeq!==t||this.media!==e?null:i}catch(i){if(this.destroyed||this.loadSeq!==t||this.media!==e)return null;throw i}})}play(){return Y(this,null,function*(){return K(this,F).play()})}pause(){K(this,F).pause()}seek(e){return Y(this,null,function*(){return K(this,F).seek(e)})}setVolume(e,t){this.audio.setVolume(e,t)}setPlaybackRate(e){this.audio.setPlaybackRate(e),this.video.setPlaybackRate(e)}reportError(e){if(this.destroyed)return;const t=e&&"object"===typeof e?Reflect.get(e,"message"):void 0;this.error={code:4,message:"string"===typeof t?t:String(e)},this.networkState=3,this.events.emit("error")}destroy(){if(this.destroyed)return;this.destroyed=!0,this.loadSeq++,K(this,F).invalidate();const e=[];for(const i of[()=>{var e;return null==(e=this.loadSession)?void 0:e.cancel()},()=>this.pause(),()=>this.disposeInput(),()=>this.audio.destroy(),()=>this.video.destroy()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}get currentTime(){return this.audio.currentTime}get duration(){var e,t,i;return null!=(i=null!=(t=null==(e=this.media)?void 0:e.duration)?t:this.audio.duration)?i:this.video.duration}get videoWidth(){return this.video.width}get videoHeight(){return this.video.height}}F=new WeakMap;const Pc=new WeakMap;function Ic(e){let t=Pc.get(e);return t||(t={closed:!1,frames:new Set},Pc.set(e,t)),t}class xc{constructor({art:e,canvas:t,ctx:i,option:r}){var n,s;this.art=e,this.canvas=t,this.option=r,this.events=new ae,this.engine=new Sc({canvas:t,ctx:i,events:this.events,option:r}),this._src=null,this._volume=null!=(n=r.volume)?n:.7,this._muted=!!r.muted,this._playbackRate=1,this.engine.setVolume(this._volume,this._muted),this.setupEventForwarding(),r.source?this.src=r.source:(null==(s=e.option)?void 0:s.url)&&(this.src=e.option.url)}setupEventForwarding(){const{events:e}=this.art.constructor.config;e.forEach(e=>{this.events.addEventListener(e,e=>{this.art.emit(`video:${e.type}`,e)})})}addEventListener(e,t){this.events.addEventListener(e,t)}removeEventListener(e,t){this.events.removeEventListener(e,t)}get src(){return this._src}set src(e){this._src=e,e&&this.engine.load(e)}get currentSrc(){return this._src}get currentTime(){return this.engine.currentTime}set currentTime(e){Promise.resolve(this.engine.seek(Number(e)||0)).catch(()=>{})}get duration(){return this.engine.duration}get buffered(){return this.createTimeRanges(0,this.engine.duration)}get played(){return this.createTimeRanges(0,this.engine.currentTime)}get seekable(){return this.createTimeRanges(0,this.engine.duration)}createTimeRanges(e,t){return function(e,t,i){return!e||Number.isNaN(e)||i<=0?{length:0,start:()=>0,end:()=>0}:{length:1,start:()=>t,end:()=>i}}(this.engine.duration,e,t)}get paused(){return this.engine.paused}get playing(){return!this.engine.paused&&!this.engine.ended}get ended(){return this.engine.ended}get seeking(){return this.engine.seeking}get readyState(){return this.engine.readyState}get networkState(){return this.engine.networkState}get error(){return this.engine.error}get playbackRate(){return this._playbackRate}set playbackRate(e){const t=Number(e);Number.isNaN(t)||t<=0||(this._playbackRate=t,this.engine.setPlaybackRate(t),this.events.emit("ratechange"))}get volume(){return this._volume}set volume(e){var t;this._volume=(t=e,Math.max(0,Math.min(1,Number(t)||0))),this._muted=!1,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}get muted(){return this._muted}set muted(e){this._muted=!!e,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}play(){return this.engine.play()}pause(){this.engine.pause()}load(){this._src&&this.engine.load(this._src)}getM3u8State(){return this.engine.getHlsState()}switchM3u8Quality(e){return this.engine.selectHlsQuality(e)}switchM3u8Audio(e){return this.engine.selectHlsAudio(e)}get videoWidth(){return this.engine.videoWidth}get videoHeight(){return this.engine.videoHeight}get poster(){return this.option.poster||""}set poster(e){this.option.poster=e}get autoplay(){return this.option.autoplay||!1}set autoplay(e){}get loop(){return this.option.loop||!1}set loop(e){}get controls(){return!1}set controls(e){}get playsInline(){return!0}set playsInline(e){}get crossOrigin(){return this.option.crossOrigin||""}set crossOrigin(e){}get preload(){return"auto"}set preload(e){}get defaultMuted(){return!1}set defaultMuted(e){}get defaultPlaybackRate(){return 1}set defaultPlaybackRate(e){}canPlayType(e){return"maybe"}getBoundingClientRect(){return this.canvas.getBoundingClientRect()}requestVideoFrameCallback(e){return function(e,t){const i=Ic(e);if(i.closed)return 0;const r=requestAnimationFrame(n=>{i.frames.delete(r),i.closed||t(n,{presentationTime:e.engine.currentTime,expectedDisplayTime:n+16.6,width:e.engine.videoWidth,height:e.engine.videoHeight,mediaTime:e.engine.currentTime,presentedFrames:0,processingDuration:0,captureTime:n,receiveTime:n,rtpTimestamp:0})});return i.frames.add(r),r}(this,e)}cancelVideoFrameCallback(e){!function(e,t){Ic(e).frames.delete(t),cancelAnimationFrame(t)}(this,e)}setAttribute(e,t){"src"===e?this.src=t:"autoplay"===e?this.autoplay=t:"loop"===e?this.loop=t:"muted"===e?this.muted=!0:Reflect.apply(this.canvas.setAttribute,this.canvas,[e,t])}destroy(){if(function(e){const t=Ic(e);if(t.closed)return!1;t.closed=!0;for(const i of t.frames)cancelAnimationFrame(i);return t.frames.clear(),!0}(this))try{this.engine.destroy()}finally{this.events.destroy()}}}function Cc(e={}){return t=>{const i=t,{createElement:r}=i.constructor.utils,n=r("canvas"),s=new xc({art:i,canvas:n,ctx:n.getContext("2d"),option:e}),a=function(e,t,i,r){let n,s=!1;function a(){var i;s||!(null==(i=e.template)?void 0:i.$player)||e.option.autoSize||Object.assign(t.style,{width:"100%",height:"100%",objectFit:"contain"})}function o(){s||(s=!0,ie([()=>null==n?void 0:n.destroy(),()=>{e.mediabunny===i&&delete e.mediabunny},()=>i.destroy(),()=>{var t;return null==(t=e.off)?void 0:t.call(e,"resize",a)},()=>{var t;return null==(t=e.off)?void 0:t.call(e,"video:loadedmetadata",a)},()=>{var t;return null==(t=e.off)?void 0:t.call(e,"destroy",o)}]))}return{install:function(){e.on("resize",a),e.on("video:loadedmetadata",a),n=se({art:e,shim:i,option:r}),e.on("destroy",o)},destroy:o}}(i,n,s,e);try{i.mediabunny=s,function(e,t){const i=new Map,r=e,n=t;for(const a in e)if("function"===typeof r[a]){const t=r[a];i.set(a,t.bind(e))}const s=new Set([...Object.getOwnPropertyNames(t),...Object.getOwnPropertyNames(Object.getPrototypeOf(t))]);for(const a of s)"constructor"===a||a in e||Object.defineProperty(e,a,{get(){const e=n[a];return"function"===typeof e?e.bind(t):e},set(e){n[a]=e},configurable:!0,enumerable:!0});for(const[a,o]of i)r[a]=(...e)=>o(...e)}(n,s),a.install()}catch(o){try{a.destroy()}catch(l){console.warn("MediaBunny entry setup cleanup:",l)}throw o}return n}}return Object.defineProperty(Cc,"default",{value:Cc,writable:!0,configurable:!0}),Cc});
diff --git a/docs/compiled/artplayer-proxy-mediabunny.mjs b/docs/compiled/artplayer-proxy-mediabunny.mjs
index 0d30a4e5f..c30d6d43d 100644
--- a/docs/compiled/artplayer-proxy-mediabunny.mjs
+++ b/docs/compiled/artplayer-proxy-mediabunny.mjs
@@ -24403,6 +24403,12 @@ class AudioTask {
     this.timers.clear();
   }
 }
+function requireDecoder(host) {
+  if (host.audio.audioSink || host.video.videoSink)
+    return;
+  host.readyState = 0;
+  throw new Error("Input has no decodable audio or video tracks.");
+}
 function publish(events, current, names) {
   for (const name of names) {
     if (!current())
@@ -25127,6 +25133,7 @@ class Playback {
       await Promise.all([this.host.video.load(media), this.host.audio.load(media)]);
       if (!current())
         return;
+      requireDecoder(this.host);
       await Promise.all([this.host.video.seek(time), this.host.audio.seek(time)]);
       if (current()) {
         this.host.readyState = 4;
@@ -25815,6 +25822,7 @@ class MediaBunnyEngine {
     this.input = input;
     this.media = media;
     const metadata = metadataBarrier(() => {
+      requireDecoder(this);
       this.readyState = 1;
       publish(this.events, current, ["loadedmetadata", "durationchange", "progress"]);
     }, current);
@@ -25824,6 +25832,7 @@ class MediaBunnyEngine {
       await Promise.all([video, audio2]);
       if (!current())
         return;
+      requireDecoder(this);
       this.readyState = 4;
       this.networkState = 1;
       publish(this.events, current, ["loadeddata", "canplay", "canplaythrough", "progress"]);
diff --git a/package.json b/package.json
index a0e55f431..64097f67b 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
     "ci:build": "yarn build:types && yarn build all && yarn build:i18n && yarn build:ts && yarn build:docs && yarn test:imports",
     "test:imports": "node --test test/esm.test.js test/i18n.test.js test/ssr.test.js",
     "typecheck": "node scripts/typecheck.mjs",
-    "test:unit": "node --test test/mediabunny.test.js test/mediabunny-shim.test.js test/mediabunny-coordination.test.js test/mediabunny-video.test.js test/mediabunny-audio.test.js test/mediabunny-hls.test.js test/mediabunny-entry.test.js test/mediabunny-load.test.js test/mediabunny-input.test.js test/dpip.test.js test/dpip-lifecycle.test.js test/canvas.test.js test/canvas-lifecycle.test.js test/ambilight.test.js test/ambilight-lifecycle.test.js test/ambilight-proxy.test.js test/vast.test.js test/vast-lifecycle.test.js test/ads.test.js test/ads-lifecycle.test.js test/playback.test.js test/dash-control.test.js test/dash-contract.test.js test/dash-lifecycle.test.js test/dash-events.test.js test/hls-control.test.js test/audio-track.test.js test/public-behavior.test.js test/helpers.test.js test/chapter.test.js test/utils.test.js test/resource-scope.test.js test/instance-lifecycle.test.js test/options.test.js test/media-hosts.test.js test/plugins.test.js test/source.test.js test/playback-properties.test.js test/media-events.test.js test/template-resources.test.js test/core-vendor.test.js test/component-resources.test.js test/setting-model.test.js test/setting-layout.test.js test/setting-resources.test.js test/subtitle.test.js test/display-native.test.js test/display-video-fullscreen.test.js test/display-pip.test.js test/display-mini.test.js test/display-sizing.test.js test/display-orientation.test.js test/hotkey.test.js test/listener-registry.test.js test/global-events.test.js test/pointer-events.test.js test/gesture.test.js test/event-scheduling.test.js test/notice.test.js test/fast-forward.test.js test/auto-playback.test.js test/builtin-layers.test.js test/prompt-components.test.js test/screenshot.test.js test/thumbnails.test.js test/progress.test.js test/environment.test.js test/storage.test.js test/facade-properties.test.js test/dom-boundaries.test.js test/initialization.test.js test/entry.test.js test/accessibility-button.test.js test/accessibility-focus.test.js test/accessibility-slider.test.js",
+    "test:unit": "node --test test/mediabunny.test.js test/mediabunny-shim.test.js test/mediabunny-coordination.test.js test/mediabunny-video.test.js test/mediabunny-audio.test.js test/mediabunny-hls.test.js test/mediabunny-entry.test.js test/mediabunny-capability.test.js test/mediabunny-load.test.js test/mediabunny-input.test.js test/dpip.test.js test/dpip-lifecycle.test.js test/canvas.test.js test/canvas-lifecycle.test.js test/ambilight.test.js test/ambilight-lifecycle.test.js test/ambilight-proxy.test.js test/vast.test.js test/vast-lifecycle.test.js test/ads.test.js test/ads-lifecycle.test.js test/playback.test.js test/dash-control.test.js test/dash-contract.test.js test/dash-lifecycle.test.js test/dash-events.test.js test/hls-control.test.js test/audio-track.test.js test/public-behavior.test.js test/helpers.test.js test/chapter.test.js test/utils.test.js test/resource-scope.test.js test/instance-lifecycle.test.js test/options.test.js test/media-hosts.test.js test/plugins.test.js test/source.test.js test/playback-properties.test.js test/media-events.test.js test/template-resources.test.js test/core-vendor.test.js test/component-resources.test.js test/setting-model.test.js test/setting-layout.test.js test/setting-resources.test.js test/subtitle.test.js test/display-native.test.js test/display-video-fullscreen.test.js test/display-pip.test.js test/display-mini.test.js test/display-sizing.test.js test/display-orientation.test.js test/hotkey.test.js test/listener-registry.test.js test/global-events.test.js test/pointer-events.test.js test/gesture.test.js test/event-scheduling.test.js test/notice.test.js test/fast-forward.test.js test/auto-playback.test.js test/builtin-layers.test.js test/prompt-components.test.js test/screenshot.test.js test/thumbnails.test.js test/progress.test.js test/environment.test.js test/storage.test.js test/facade-properties.test.js test/dom-boundaries.test.js test/initialization.test.js test/entry.test.js test/accessibility-button.test.js test/accessibility-focus.test.js test/accessibility-slider.test.js",
     "test:coverage": "node --test test/coverage.test.js && node scripts/coverage.mjs",
     "test": "yarn test:node && yarn test:baseline",
     "test:browser": "playwright test",
@@ -76,7 +76,7 @@
     "test:canvas-types-package": "node refactor/scripts/canvas-package-types.mjs",
     "test:dpip": "node --test test/dpip.test.js test/dpip-lifecycle.test.js",
     "test:dpip-types-package": "node refactor/scripts/dpip-package-types.mjs",
-    "test:mediabunny": "node --test test/mediabunny.test.js test/mediabunny-shim.test.js test/mediabunny-coordination.test.js test/mediabunny-video.test.js test/mediabunny-audio.test.js test/mediabunny-hls.test.js test/mediabunny-entry.test.js test/mediabunny-load.test.js test/mediabunny-input.test.js",
+    "test:mediabunny": "node --test test/mediabunny.test.js test/mediabunny-shim.test.js test/mediabunny-coordination.test.js test/mediabunny-video.test.js test/mediabunny-audio.test.js test/mediabunny-hls.test.js test/mediabunny-entry.test.js test/mediabunny-capability.test.js test/mediabunny-load.test.js test/mediabunny-input.test.js",
     "test:mediabunny-types-package": "node refactor/scripts/mb-package-types.mjs"
   },
   "browserslist": "last 1 Chrome version",
diff --git a/packages/artplayer-proxy-mediabunny/ARCHITECTURE.md b/packages/artplayer-proxy-mediabunny/ARCHITECTURE.md
index 5449e081b..62605c819 100644
--- a/packages/artplayer-proxy-mediabunny/ARCHITECTURE.md
+++ b/packages/artplayer-proxy-mediabunny/ARCHITECTURE.md
@@ -46,8 +46,8 @@ view in `types/media.d.ts` is opt-in and checked against the real VideoShim clas
 The thirty-four production TypeScript modules use strict checking with `skipLibCheck: false`
 and no ambient Node types. The coordinator and both decoder engines are checked
 implementations; there are no remaining adjacent JavaScript declaration bridges.
-All owned production JavaScript has been migrated. This source milestone does not complete
-PKG-MB-08: unsupported decoder fallback/readiness still needs its remaining review.
+All owned production JavaScript has been migrated. PKG-MB-08 also checks public consumer
+compatibility and distinguishes supported partial media from wholly undecodable inputs.
 
 The entry preserves native Canvas method priority, detached createElement invocation,
 two reads of enumerable native method accessors, direct-prototype forwarding, bound shim
@@ -162,8 +162,18 @@ callbacks have source and request identity and are detached on replacement, draw
 Background decoder failure stops rendering and reports one media error through the coordinator,
 even if audio cleanup fails. Iterator cleanup failures are observed and warned; explicit
 stopIterator still rejects. Missing 2D context fails at use with a descriptive error, rather
-than becoming falsely ready. Capability handling for existing undecodable tracks remains
-under MB-CAP-01/MB-READY-01; the current no-video fallback is preserved for that separate review.
+than becoming falsely ready. Existing but undecodable tracks may use the historical
+no-video/no-audio fallback only when at least one selected decoder is usable.
+
+`readiness.requireDecoder` checks the actual audio/video sinks after their existing SDK
+capability checks. It does not issue duplicate canDecode queries or change decoder load
+return values. The metadata barrier checks before publishing metadata, and the load
+completion checks before publishing data/canplay. Track replacement checks after decoder
+setup and before seeking or publishing its success sequence. Without either sink, readyState
+returns to zero and the existing code-4 error channel reports
+`Input has no decodable audio or video tracks.` Active SDK query errors retain their own
+messages. Valid audio-only/video-only and mixed inputs with one usable track retain normal
+readiness/playback; canceled queries cannot report against a newer source or destroyed player.
 
 ## Audio clock and resource ownership
 
@@ -266,9 +276,9 @@ consumers. Do not switch to export= or a required default member without those c
 `canPlayType()` still always returns maybe; buffered/played/seekable and RAF metadata remain
 synthetic. None is proof that a codec or browser can play the input. Missing Web Audio or
 WebCodecs in Windows WebKit remains an unsupported-capability control. Existing but
-undecodable tracks can still take historical clock-only fallback; remaining MB-08 work
-must distinguish valid audio-only/video-only playback from false readiness with no usable
-decoder, including selection replacement. Native/long-play/device acceptance remains MB-09.
+undecodable tracks no longer produce clock-only false readiness when all selected decoders
+are unusable. Partial playback retains the usable decoder. Native/long-play/device acceptance
+remains MB-09; no synthetic capability probe proves support on a physical Safari device.
 
 ## Validation and remaining work
 
@@ -283,6 +293,7 @@ yarn test:browser test/browser/mediabunny-video.spec.js
 yarn test:browser test/browser/mediabunny-audio.spec.js
 yarn test:browser test/browser/mediabunny-hls.spec.js
 yarn test:browser test/browser/mediabunny-entry.spec.js
+yarn test:browser test/browser/mediabunny-capability.spec.js
 ```
 
 Node tests use actual SDK parsing and controlled lifecycle interleavings. Browser tests
diff --git a/packages/artplayer-proxy-mediabunny/README.md b/packages/artplayer-proxy-mediabunny/README.md
index ca2ab9f5c..66fee613c 100644
--- a/packages/artplayer-proxy-mediabunny/README.md
+++ b/packages/artplayer-proxy-mediabunny/README.md
@@ -44,7 +44,9 @@ SDK track objects need explicit narrowing with your application's SDK types.
 The `canPlayType()` response remains `maybe` for compatibility; it does not test codec
 support. TimeRanges and frame callback metadata are synthetic. Actual playback requires
 supported codecs and browser media APIs; a `legacy` bundle does not polyfill those APIs.
-Decoder fallback and broader browser/device validation remain in progress.
+When every selected track is undecodable, loading or track replacement reports error code 4
+without a success readiness sequence. Partial playback keeps a usable audio or video track.
+Broader browser/device validation remains in progress.
 
 ESM default imports and `/legacy` type resolution now support the tested TS 5.9 and
 TS 4.3 modes. CommonJS supports both direct calls and the old `require(...).default`
diff --git a/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.js b/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.js
index 099dbcd87..87b7001d9 100644
--- a/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.js
+++ b/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.js
@@ -4,4 +4,4 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
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a=0;t+3<e.length&&0===e[t+1]&&0===e[t+2]&&1===e[t+3]?a=4:0===e[t+1]&&1===e[t+2]&&(a=3),0!==a?(-1!==i&&t>i&&(yield{offset:i,length:t-i}),i=t+a,t=i):t++}-1!==i&&i<e.length&&(yield{offset:i,length:e.length-i})},It=function*(e,t){let i=0;const r=new DataView(e.buffer,e.byteOffset,e.byteLength);for(;i+t<=e.length;){let e;1===t?e=r.getUint8(i):2===t?e=r.getUint16(i,!1):3===t?e=Se(r,i,!1):(j(4===t),e=r.getUint32(i,!1)),i+=t,yield{offset:i,length:e},i+=e}},xt=(e,t)=>{if(t.description){const i=3&Y(t.description)[4];return It(e,i+1)}return Pt(e)},Ct=e=>31&e,Bt=e=>{const t=[],i=e.length;for(let r=0;r<i;r++)r+2<i&&0===e[r]&&0===e[r+1]&&3===e[r+2]?(t.push(0,0),r+=2):t.push(e[r]);return new Uint8Array(t)},Et=new Uint8Array([0,0,0,1]),_t=e=>{const t=e.reduce((e,t)=>e+Et.byteLength+t.byteLength,0),i=new Uint8Array(t);let r=0;for(const a of e)i.set(Et,r),r+=Et.byteLength,i.set(a,r),r+=a.byteLength;return i},Rt=(e,t)=>{const i=e.reduce((e,i)=>e+t+i.byteLength,0),r=new Uint8Array(i);let a=0;for(const s of e){const e=new DataView(r.buffer,r.byteOffset,r.byteLength);switch(t){case 1:e.setUint8(a,s.byteLength);break;case 2:e.setUint16(a,s.byteLength,!1);break;case 3:ve(e,a,s.byteLength);break;case 4:e.setUint32(a,s.byteLength,!1)}a+=t,r.set(s,a),a+=s.byteLength}return r},Ft=e=>{try{const t=[],i=[],r=[];for(const o of Pt(e)){const a=e.subarray(o.offset,o.offset+o.length),s=Ct(a[0]);s===wt.SPS?t.push(a):s===wt.PPS?i.push(a):s===wt.SPS_EXT&&r.push(a)}if(0===t.length)return null;if(0===i.length)return null;const a=t[0],s=Nt(a);j(null!==s);const n=100===s.profileIdc||110===s.profileIdc||122===s.profileIdc||144===s.profileIdc;return{configurationVersion:1,avcProfileIndication:s.profileIdc,profileCompatibility:s.constraintFlags,avcLevelIndication:s.levelIdc,lengthSizeMinusOne:3,sequenceParameterSets:t,pictureParameterSets:i,chromaFormat:n?s.chromaFormatIdc:null,bitDepthLumaMinus8:n?s.bitDepthLumaMinus8:null,bitDepthChromaMinus8:n?s.bitDepthChromaMinus8:null,sequenceParameterSetExt:n?r:null}}catch(t){return ct._error("Error building AVC Decoder Configuration Record:",t),null}},At=e=>{const t=[];t.push(e.configurationVersion),t.push(e.avcProfileIndication),t.push(e.profileCompatibility),t.push(e.avcLevelIndication),t.push(252|3&e.lengthSizeMinusOne),t.push(224|31&e.sequenceParameterSets.length);for(const i of e.sequenceParameterSets){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r<e;r++)t.push(i[r])}t.push(e.pictureParameterSets.length);for(const i of e.pictureParameterSets){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r<e;r++)t.push(i[r])}if((100===e.avcProfileIndication||110===e.avcProfileIndication||122===e.avcProfileIndication||144===e.avcProfileIndication)&&null!==e.chromaFormat){j(null!==e.bitDepthLumaMinus8),j(null!==e.bitDepthChromaMinus8),j(null!==e.sequenceParameterSetExt),t.push(252|3&e.chromaFormat),t.push(248|7&e.bitDepthLumaMinus8),t.push(248|7&e.bitDepthChromaMinus8),t.push(e.sequenceParameterSetExt.length);for(const i of e.sequenceParameterSetExt){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r<e;r++)t.push(i[r])}}return new Uint8Array(t)},Mt=e=>{try{const t=J(e);let i=0;const r=t.getUint8(i++),a=t.getUint8(i++),s=t.getUint8(i++),n=t.getUint8(i++),o=3&t.getUint8(i++),c=31&t.getUint8(i++),l=[];for(let f=0;f<c;f++){const r=t.getUint16(i,!1);i+=2,l.push(e.subarray(i,i+r)),i+=r}const u=t.getUint8(i++),h=[];for(let f=0;f<u;f++){const r=t.getUint16(i,!1);i+=2,h.push(e.subarray(i,i+r)),i+=r}const d={configurationVersion:r,avcProfileIndication:a,profileCompatibility:s,avcLevelIndication:n,lengthSizeMinusOne:o,sequenceParameterSets:l,pictureParameterSets:h,chromaFormat:null,bitDepthLumaMinus8:null,bitDepthChromaMinus8:null,sequenceParameterSetExt:null};if((100===a||110===a||122===a||144===a)&&i+4<=e.length){const r=3&t.getUint8(i++),a=7&t.getUint8(i++),s=7&t.getUint8(i++),n=t.getUint8(i++);d.chromaFormat=r,d.bitDepthLumaMinus8=a,d.bitDepthChromaMinus8=s;const o=[];for(let c=0;c<n;c++){const r=t.getUint16(i,!1);i+=2,o.push(e.subarray(i,i+r)),i+=r}d.sequenceParameterSetExt=o}return d}catch(t){return ct._error("Error deserializing AVC Decoder Configuration Record:",t),null}},Dt={1:{num:1,den:1},2:{num:12,den:11},3:{num:10,den:11},4:{num:16,den:11},5:{num:40,den:33},6:{num:24,den:11},7:{num:20,den:11},8:{num:32,den:11},9:{num:80,den:33},10:{num:18,den:11},11:{num:15,den:11},12:{num:64,den:33},13:{num:160,den:99},14:{num:4,den:3},15:{num:3,den:2},16:{num:2,den:1}},Nt=e=>{try{const t=Bt(e),i=new dt(t);i.skipBits(1),i.skipBits(2);if(7!==i.readBits(5))return null;const r=i.readAlignedByte(),a=i.readAlignedByte(),s=i.readAlignedByte();$(i);let n=1,o=0,c=0,l=0;if(100===r||110===r||122===r||244===r||44===r||83===r||86===r||118===r||128===r){n=$(i),3===n&&(l=i.readBits(1)),o=$(i),c=$(i),i.skipBits(1);if(i.readBits(1))for(let e=0;e<(3!==n?8:12);e++){if(i.readBits(1)){const t=e<6?16:64;let r=8,a=8;for(let e=0;e<t;e++){if(0!==a){a=(r+Q(i)+256)%256}r=0===a?r:a}}}}$(i);const u=$(i);if(0===u)$(i);else if(1===u){i.skipBits(1),Q(i),Q(i);const e=$(i);for(let t=0;t<e;t++)Q(i)}$(i),i.skipBits(1);const h=$(i),d=$(i),f=16*(h+1),m=16*(d+1);let p=f,g=m;const k=i.readBits(1);k||i.skipBits(1),i.skipBits(1);if(i.readBits(1)){const e=$(i),t=$(i),r=$(i),a=$(i);let s,o;if(0===(0===l?n:0))s=1,o=2-k;else{s=3===n?1:2,o=(1===n?2:1)*(2-k)}p-=s*(e+t),g-=o*(r+a)}let y=2,b=2,w=2,T=0,S={num:1,den:1},v=null,P=null,I=null,x=null;const C=i.pos;if(i.readBits(1)){if(i.readBits(1)){const e=i.readBits(8);if(255===e)S={num:i.readBits(16),den:i.readBits(16)};else{const t=Dt[e];t&&(S=t)}}i.readBits(1)&&i.skipBits(1);if(i.readBits(1)){i.skipBits(3),T=i.readBits(1);i.readBits(1)&&(y=i.readBits(8),b=i.readBits(8),w=i.readBits(8))}i.readBits(1)&&($(i),$(i));i.readBits(1)&&(i.skipBits(32),i.skipBits(32),i.skipBits(1));const e=i.readBits(1);e&&Ot(i);const t=i.readBits(1);t&&Ot(i),(e||t)&&i.skipBits(1),i.skipBits(1),I=i.pos,x=i.readBits(1),x&&(i.skipBits(1),$(i),$(i),$(i),$(i),v=$(i),P=$(i))}if(null===v){j(null===P);if(44!==r&&86!==r&&100!==r&&110!==r&&122!==r&&244!==r||!(16&a)){const e=h+1,t=(2-k)*(d+1),i=Ai.find(e=>e.level>=s)??X(Ai),r=Math.min(Math.floor(i.maxDpbMbs/(e*t)),16);v=r,P=r}else v=0,P=0}return j(null!==P),{emulationUnpreventedBytes:t,profileIdc:r,constraintFlags:a,levelIdc:s,frameMbsOnlyFlag:k,chromaFormatIdc:n,bitDepthLumaMinus8:o,bitDepthChromaMinus8:c,codedWidth:f,codedHeight:m,displayWidth:p,displayHeight:g,pixelAspectRatio:S,colourPrimaries:y,matrixCoefficients:w,transferCharacteristics:b,fullRangeFlag:T,numReorderFrames:v,maxDecFrameBuffering:P,vuiParametersFlagBitOffset:C,bitstreamRestrictionFlagBitOffset:I,bitstreamRestrictionFlag:x}}catch(t){return ct._error("Error parsing AVC SPS:",t),null}},Ot=e=>{const t=$(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)$(e),$(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},Lt=e=>{j(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new dt(e.emulationUnpreventedBytes),r=new dt(t);null===e.bitstreamRestrictionFlag?(r.copyBits(e.vuiParametersFlagBitOffset,i),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(j(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),G(r,2),G(r,1),G(r,16),G(r,16),G(r,e.numReorderFrames),G(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const a=r.pos/8;return j(Number.isInteger(a)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,a))},zt=(e,t)=>{if(t.description){const i=3&Y(t.description)[21];return It(e,i+1)}return Pt(e)},Ut=e=>e>>1&63,qt=e=>{try{const t=new dt(Bt(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:a,general_tier_flag:s,general_profile_idc:n,general_profile_compatibility_flags:o,general_constraint_indicator_flags:c,general_level_idc:l}=Ht(t,i);$(t);const u=$(t);let h=0;3===u&&(h=t.readBits(1));const d=$(t),f=$(t);let m=d,p=f;if(t.readBits(1)){const e=$(t),i=$(t),r=$(t),a=$(t);let s=1,n=1;const o=0===h?u:0;1===o?(s=2,n=2):2===o&&(s=2,n=1),m-=(e+i)*s,p-=(r+a)*n}const g=$(t),k=$(t);$(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)$(t),b=$(t),$(t);$(t),$(t),$(t),$(t),$(t),$(t),t.readBits(1)&&t.readBits(1)&&Vt(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),$(t),$(t),t.skipBits(1));const w=$(t);if(jt(t,w),t.readBits(1)){const e=$(t);for(let i=0;i<e;i++)$(t),t.skipBits(1)}t.skipBits(1),t.skipBits(1);let T=2,S=2,v=2,P=0,I=0,x={num:1,den:1};if(t.readBits(1)){const e=Xt(t,i);x=e.pixelAspectRatio,T=e.colourPrimaries,S=e.transferCharacteristics,v=e.matrixCoefficients,P=e.fullRangeFlag,I=e.minSpatialSegmentationIdc}return{displayWidth:m,displayHeight:p,pixelAspectRatio:x,colourPrimaries:T,transferCharacteristics:S,matrixCoefficients:v,fullRangeFlag:P,maxDecFrameBuffering:b+1,spsMaxSubLayersMinus1:i,spsTemporalIdNestingFlag:r,generalProfileSpace:a,generalTierFlag:s,generalProfileIdc:n,generalProfileCompatibilityFlags:o,generalConstraintIndicatorFlags:c,generalLevelIdc:l,chromaFormatIdc:u,bitDepthLumaMinus8:g,bitDepthChromaMinus8:k,minSpatialSegmentationIdc:I}}catch(t){return ct._error("Error parsing HEVC SPS:",t),null}},Wt=e=>{try{const t=[],i=[],r=[],a=[];for(const c of Pt(e)){const s=e.subarray(c.offset,c.offset+c.length),n=Ut(s[0]);n===St.VPS_NUT?t.push(s):n===St.SPS_NUT?i.push(s):n===St.PPS_NUT?r.push(s):n!==St.PREFIX_SEI_NUT&&n!==St.SUFFIX_SEI_NUT||a.push(s)}if(0===i.length||0===r.length)return null;const s=qt(i[0]);if(!s)return null;let n=0;if(r.length>0){const e=r[0],t=new dt(Bt(e));t.skipBits(16),$(t),$(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),$(t),$(t),Q(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&$(t),Q(t),Q(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),a=t.readBits(1);n=i||a?i&&!a?2:!i&&a?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:St.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:St.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:St.PPS_NUT,nalUnits:r}]:[],...a.length?[{arrayCompleteness:1,nalUnitType:Ut(a[0][0]),nalUnits:a}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:n,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return ct._error("Error building HEVC Decoder Configuration Record:",t),null}},Ht=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),a=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const n=new Uint8Array(6);for(let u=0;u<6;u++)n[u]=e.readBits(8);const o=e.readBits(8),c=[],l=[];for(let u=0;u<t;u++)c.push(e.readBits(1)),l.push(e.readBits(1));if(t>0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u<t;u++)c[u]&&e.skipBits(88),l[u]&&e.skipBits(8);return{general_profile_space:i,general_tier_flag:r,general_profile_idc:a,general_profile_compatibility_flags:s,general_constraint_indicator_flags:n,general_level_idc:o}},Vt=e=>{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&Q(e);for(let t=0;t<i;t++)Q(e)}else $(e)}},jt=(e,t)=>{const i=[];for(let r=0;r<t;r++)i[r]=Kt(e,r,t,i)},Kt=(e,t,i,r)=>{let a=0,s=0,n=0;if(0!==t&&(s=e.readBits(1)),s){if(t===i){n=t-($(e)+1)}else n=t-1;e.readBits(1),$(e);const s=r[n]??0;for(let 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g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,w=1,T=1,S=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,w=0,T=0):(b=e.readBits(1),0===r?(w=1,T=1):1===r?(w=0,T=0):12===m?(w=e.readBits(1),T=w?e.readBits(1):0):(w=1,T=0),w&&T&&(S=e.readBits(2))),{profile:r,level:s,tier:n,bitDepth:m,monochrome:p,chromaSubsamplingX:w,chromaSubsamplingY:T,chromaSamplePosition:S,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},ri=e=>{if(e.length<36)return null;const t=J(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},ai=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],si=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in 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e=Number.parseInt(l,10);Number.isInteger(e)&&e>0&&(t.discsTotal??(t.discsTotal=e))}break;case"DATE":{const e=new Date(l);Number.isNaN(e.getTime())||(t.date??(t.date=e))}break;case"GENRE":t.genre??(t.genre=l);break;case"METADATA_BLOCK_PICTURE":{const e=Qe(l),i=J(e),r=i.getUint32(0,!1),a=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+a)),n=i.getUint32(8+a,!1),o=Z.decode(e.subarray(12+a,12+a+n)),c=i.getUint32(a+n+28),u=e.subarray(a+n+32,a+n+32+c);t.images??(t.images=[]),t.images.push({data:u,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},ui=[2,1,2,3,3,4,4,5],hi=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new dt(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),a=t.readBits(5);if(a>8)return null;const 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o=t.readBits(3),c=t.readBits(1),l=t.readBits(5);if(l<11||l>16)return null;const u=fi[s];let h;h=a<3?yt[a]/1e3:bt[n]/1e3;return{dataRate:Math.round((r+1)*h/(16*u)),substreams:[{fscod:a,fscod2:n,bsid:l,bsmod:0,acmod:o,lfeon:c,numDepSub:0,chanLoc:0}]}},pi=e=>{const t=e.substreams[0];return j(t),t.fscod<3?yt[t.fscod]:null!==t.fscod2&&t.fscod2<3?bt[t.fscod2]:null},gi=e=>{const t=e.substreams[0];j(t);let i=ui[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let r=0;r<9;r++)t.chanLoc&1<<8-r&&(i+=e[r])}return i},ki=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],yi=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],bi=[16,16,20,20,0,24,24,0],wi=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],Ti=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],Si=[32e3,44100,48e3,0],vi=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],Pi=[512,1024,2048,4096],Ii=e=>{const t=Ci(e),i=J(e);let r=t?4*Math.ceil(t.frameSize/4):0,a=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=Bi(e.subarray(r));if(!t)break;a??(a=t),r+=t.frameSize}if(t)return{frameSize:a?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==a};if(!a?.asset)return null;const{asset:s}=a;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},xi=e=>{const t=Ii(e);return t?.core?t.hasExtensions?"dtsh":"dtsc":null},Ci=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new dt(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const a=t.readBits(14)+1;if(a<96)return null;const s=t.readBits(6);if(s>=wi.length)return null;const n=ki[t.readBits(4)];if(0===n)return null;const o=yi[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const c=t.readBits(2);if(3===c)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const l=bi[t.readBits(3)];if(0===l)return null;const 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t=o.profile,i=o.level.toString().padStart(2,"0"),a=o.tier?"H":"M",s=o.bitDepth.toString().padStart(2,"0"),n=o.monochrome?"1":"0",c=100*o.chromaSubsamplingX+10*o.chromaSubsamplingY+1*(o.chromaSubsamplingX&&o.chromaSubsamplingY?o.chromaSamplePosition:0),l=r?.primaries?te[r.primaries]:1,u=r?.transfer?re[r.transfer]:1,h=r?.matrix?se[r.matrix]:1,d=r?.fullRange?1:0;let f=`av01.${t}.${i}${a}.${s}`;return f+=`.${n}.${c.toString().padStart(3,"0")}`,f+=`.${l.toString().padStart(2,"0")}`,f+=`.${u.toString().padStart(2,"0")}`,f+=`.${h.toString().padStart(2,"0")}`,f+=`.${d}`,f.endsWith(Ni)&&(f=f.slice(0,-17)),f}if("prores"===t)return c??"apch";throw null!==t&&Te(t),new TypeError(`Unhandled codec '${t}'.`)},Ui=e=>{switch(e.codec){case"avc":{let t=e.avcCodecInfo?.sequenceParameterSets[0];if(!t&&e.codecDescription&&(t=Mt(e.codecDescription)?.sequenceParameterSets[0]),t){const 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i=0;i<e.length;i++)if(e[i]!==t[i])return!1;return!0})(e.data,t.data),or=e=>{let t=uc(e);const i=bc(e,4);let r=8;1===t&&(t=mc(e),r=16);const a=t-r;return a<0?null:{name:i,totalSize:t,headerSize:r,contentSize:a}},cr=e=>dc(e)/65536,lr=e=>dc(e)/1073741824,ur=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=ac(e);if(t|=127&i,0===(128&i))break}return t},hr=e=>{let t=nc(e);return e.skip(2),t=Math.min(t,e.remainingLength),Z.decode(rc(e,t))},dr=e=>{const t=or(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=uc(e);e.skip(4);const r=rc(e,t.contentSize-8);switch(i){case 1:return Z.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new lt(r,"image/jpeg");case 14:return new lt(r,"image/png");case 27:return new lt(r,"image/bmp");default:return r}},fr=16,mr=new Uint32Array(256),pr=new Uint32Array(256),gr=new Uint32Array(256),kr=new Uint32Array(256),yr=new Uint32Array(256),br=new Uint32Array(256),wr=new Uint32Array(10);let Tr=!1;class Sr{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(fr/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(fr),this.out=new Uint8Array(fr),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){j(16===e.byteLength),j(16===t.byteLength),Tr||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,n=1;s<256;s++)i[s]=n,t[n]=s,n=n^n<<1^(128&n?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let a=r^r<<1^r<<2^r<<3^r<<4;a=a>>>8^255&a^99,e[s]=a}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);mr[s]=t<<24|t<<16|t<<8|t,br[s]=i<<24|i<<16|i<<8|i;const a=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);pr[s]=a,gr[s]=a>>>8|a<<24,kr[s]=a>>>16|a<<16,yr[s]=a>>>24|a<<8}let a=1;for(let s=0;s<10;s++)wr[s]=a<<24,a=a<<1^(128&a?283:0);Tr=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let a=4;a<44;a+=4){const e=this.roundkey[a-1];this.roundkey[a]=this.roundkey[a-4]^4278190080&mr[e>>>16&255]^16711680&mr[e>>>8&255]^65280&mr[e>>>0&255]^255&mr[e>>>24&255]^wr[a/4-1],this.roundkey[a+1]=this.roundkey[a-3]^this.roundkey[a],this.roundkey[a+2]=this.roundkey[a-2]^this.roundkey[a+1],this.roundkey[a+3]=this.roundkey[a-1]^this.roundkey[a+2]}for(let a=0,s=40;a<s;a+=4,s-=4)for(let e=0;e<4;e++){const t=this.roundkey[a+e];this.roundkey[a+e]=this.roundkey[s+e],this.roundkey[s+e]=t}for(let a=4;a<40;a+=4)for(let e=0;e<4;e++){const t=this.roundkey[a+e];this.roundkey[a+e]=pr[255&mr[t>>>24&255]]^gr[255&mr[t>>>16&255]]^kr[255&mr[t>>>8&255]]^yr[255&mr[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const a=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),n=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let c,l,u,h;for(let g=1;g<10;g++){const a=4*g;c=pr[e>>>24]^gr[r>>>16&255]^kr[i>>>8&255]^yr[255&t]^this.roundkey[a],l=pr[t>>>24]^gr[e>>>16&255]^kr[r>>>8&255]^yr[255&i]^this.roundkey[a+1],u=pr[i>>>24]^gr[t>>>16&255]^kr[e>>>8&255]^yr[255&r]^this.roundkey[a+2],h=pr[r>>>24]^gr[i>>>16&255]^kr[t>>>8&255]^yr[255&e]^this.roundkey[a+3],e=c,t=l,i=u,r=h}const d=4278190080&br[e>>>24&255]^16711680&br[r>>>16&255]^65280&br[i>>>8&255]^255&br[t>>>0&255]^this.roundkey[40],f=4278190080&br[t>>>24&255]^16711680&br[e>>>16&255]^65280&br[r>>>8&255]^255&br[i>>>0&255]^this.roundkey[41],m=4278190080&br[i>>>24&255]^16711680&br[t>>>16&255]^65280&br[e>>>8&255]^255&br[r>>>0&255]^this.roundkey[42],p=4278190080&br[r>>>24&255]^16711680&br[i>>>16&255]^65280&br[t>>>8&255]^255&br[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,d^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=a,this.iv[1]=s,this.iv[2]=n,this.iv[3]=o}}class vr extends ir{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.tracks.map(e=>e.trackBacking)}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>"video"===e.info?.type),hasAudio:this.tracks.some(e=>"audio"===e.info?.type),codecStrings:t.filter(Boolean)})}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(Xe(r)&&(r=await r),!r)break;const a=e,s=or(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=bc(r,4);this.isQuickTime="qt  "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(Xe(e)&&(e=await e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>a+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');await this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=a+s.totalSize}if(!i&&this.input._initInput&&await this.copyMetadataFromInitInput(this.input._initInput),t){j(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);Xe(e)&&(e=await e),j(e);const t=uc(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(Xe(e)&&(e=await e),e){const t=or(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);Xe(i)&&(i=await i),i&&this.readContiguousBoxes(i)}}}}})())}async copyMetadataFromInitInput(e){const t=await e._getDemuxer();if(t.constructor!==vr)throw new Error("Init input must match the input's format.");await t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const i of t.tracks){const e={id:i.id,demuxer:this,trackBacking:null,disposition:i.disposition,timescale:i.timescale,durationInMediaTimescale:i.durationInMediaTimescale,durationInMovieTimescale:i.durationInMovieTimescale,rotation:i.rotation,internalCodecId:i.internalCodecId,name:i.name,languageCode:i.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:i.editListPreviousSegmentDurations,editListOffset:i.editListOffset,encryptionInfo:i.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:i.info};if(i.trackBacking)if(j(e.info),"video"===e.info.type&&-1!==e.info.width){const t=e;e.trackBacking=new Ir(t),this.tracks.push(e)}else if("audio"===e.info.type&&-1!==e.info.numberOfChannels){const t=e;e.trackBacking=new xr(t),this.tracks.push(e)}}}getSampleTableForTrack(e){if(e.sampleTable)return e.sampleTable;const t={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=t,null===e.sampleTableByteOffset)return t;j(this.moovSlice);const i=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(i),this.currentTrack=null;if("audio"===e.info?.type&&e.info.codec&&Ri.includes(e.info.codec)&&0===t.sampleCompositionTimeOffsets.length){j("audio"===e.info?.type);const i=Vi(e.info.codec),r=[],a=[];for(let s=0;s<t.sampleToChunk.length;s++){const n=t.sampleToChunk[s],o=t.sampleToChunk[s+1],c=(o?o.startChunkIndex:t.chunkOffsets.length)-n.startChunkIndex;for(let s=0;s<c;s++){const o=n.startSampleIndex+s*n.samplesPerChunk,c=o+n.samplesPerChunk,l=pe(t.sampleTimingEntries,o,e=>e.startIndex),u=t.sampleTimingEntries[l],h=pe(t.sampleTimingEntries,c,e=>e.startIndex),d=t.sampleTimingEntries[h],f=u.startDecodeTimestamp+(o-u.startIndex)*u.delta,m=d.startDecodeTimestamp+(c-d.startIndex)*d.delta-f,p=X(r);p&&p.delta===m?p.count++:r.push({startIndex:n.startChunkIndex+s,startDecodeTimestamp:f,count:1,delta:m});const g=n.samplesPerChunk*i.sampleSize*e.info.numberOfChannels;a.push(g)}n.startSampleIndex=n.startChunkIndex,n.samplesPerChunk=1}t.sampleTimingEntries=r,t.sampleSizes=a}if(t.sampleCompositionTimeOffsets.length>0){t.presentationTimestamps=[];for(const e of t.sampleTimingEntries)for(let i=0;i<e.count;i++)t.presentationTimestamps.push({presentationTimestamp:e.startDecodeTimestamp+i*e.delta,sampleIndex:e.startIndex+i});for(const e of t.sampleCompositionTimeOffsets)for(let i=0;i<e.count;i++){const r=e.startIndex+i,a=t.presentationTimestamps[r];a&&(a.presentationTimestamp+=e.offset)}t.presentationTimestamps.sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp),t.presentationTimestampIndexMap=Array(t.presentationTimestamps.length).fill(-1);for(let e=0;e<t.presentationTimestamps.length;e++)t.presentationTimestampIndexMap[t.presentationTimestamps[e].sampleIndex]=e}return t}async readFragment(e){if(this.lastReadFragment?.moofOffset===e)return this.lastReadFragment;let t=this.reader.requestSliceRange(e,8,16);Xe(t)&&(t=await t),j(t);const i=or(t);j("moof"===i?.name);let r=this.reader.requestSlice(e,i.totalSize);Xe(r)&&(r=await r),j(r),this.traverseBox(r);const a=this.lastReadFragment;j(a&&a.moofOffset===e);for(const[,s]of a.trackData){const e=s.track,{fragmentPositionCache:t}=e;if(!s.startTimestampIsFinal){const i=e.fragmentLookupTable.find(e=>e.moofOffset===a.moofOffset);if(i)Rr(s,i.timestamp);else{const e=pe(t,a.moofOffset-1,e=>e.moofOffset);if(-1!==e){const i=t[e];Rr(s,i.endTimestamp)}}s.startTimestampIsFinal=!0}const i=pe(t,s.startTimestamp,e=>e.startTimestamp);if(-1!==i&&t[i].moofOffset===a.moofOffset||t.splice(i+1,0,{moofOffset:a.moofOffset,startTimestamp:s.startTimestamp,endTimestamp:s.endTimestamp}),s.encryptionAuxInfo&&e.encryptionInfo){const t=await Dr(this.reader,e.encryptionInfo,s.encryptionAuxInfo);for(let e=0;e<Math.min(s.samples.length,t.length);e++){const i=t[e];s.samples[e].encryption=i}}}return a}readContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){if(!this.traverseBox(e))break}}*iterateContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){const t=e.filePos,i=or(e);if(!i)break;yield{boxInfo:i,slice:e},e.filePos=t+i.totalSize}}traverseBox(e){var t,i,r,a,s,n,o,c,l,u,h,d,f,m,p,g,k,y,b,w,T,S,v,P,I,x,C,B,E,_,R,F,A;const M=e.filePos,D=or(e);if(!D)return!1;const N=e.filePos,O=M+D.totalSize;switch(D.name){case"mdia":case"minf":case"dinf":case"mfra":case"edts":case"sinf":case"schi":case"wave":this.readContiguousBoxes(e.slice(N,D.contentSize));break;case"mvhd":{const t=ac(e);e.skip(3),1===t?(e.skip(16),this.movieTimescale=uc(e),this.movieDurationInTimescale=mc(e)):(e.skip(8),this.movieTimescale=uc(e),this.movieDurationInTimescale=uc(e))}break;case"trak":{const t={id:-1,demuxer:this,trackBacking:null,disposition:{...ht,primary:!1},info:null,timescale:-1,durationInMovieTimescale:-1,durationInMediaTimescale:-1,rotation:0,internalCodecId:null,name:null,languageCode:xe,sampleTableByteOffset:-1,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:0,editListOffset:0,encryptionInfo:null,encryptionAuxInfo:null,frmaCodecString:null};if(this.currentTrack=t,this.readContiguousBoxes(e.slice(N,D.contentSize)),-1!==t.id&&-1!==t.timescale&&null!==t.info)if("video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new Ir(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new xr(e),this.tracks.push(t)}this.currentTrack=null}break;case"tkhd":{const t=this.currentTrack;if(!t)break;const i=ac(e),r=!!(1&oc(e));if(t.disposition.default=r,0===i)e.skip(8),t.id=uc(e),e.skip(4),t.durationInMovieTimescale=uc(e);else{if(1!==i)throw new Error(`Incorrect track header version ${i}.`);e.skip(16),t.id=uc(e),e.skip(4),t.durationInMovieTimescale=mc(e)}e.skip(16);const a=[cr(e),cr(e),lr(e),cr(e),cr(e),lr(e),cr(e),cr(e),lr(e)],s=K(Be(Fr(a),90));j(0===s||90===s||180===s||270===s),t.rotation=s}break;case"elst":{const t=this.currentTrack;if(!t)break;const i=ac(e);e.skip(3);let r=!1,a=0;const s=uc(e);for(let n=0;n<s;n++){const s=1===i?mc(e):uc(e),n=1===i?pc(e):dc(e),o=cr(e);if(r){ct._warn("Unsupported edit list: multiple edits are not currently supported. Only using first edit.");break}if(-1!==n){if(1!==o){ct._warn("Unsupported edit list entry: media rate must be 1.");break}t.editListPreviousSegmentDurations=a,t.editListOffset=n,r=!0}else a+=s}}break;case"mdhd":{const t=this.currentTrack;if(!t)break;const i=ac(e);e.skip(3),0===i?(e.skip(8),t.timescale=uc(e),t.durationInMediaTimescale=uc(e)):1===i&&(e.skip(16),t.timescale=uc(e),t.durationInMediaTimescale=mc(e));let r=nc(e);if(r>0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;Ae(t.languageCode)||(t.languageCode=xe)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=bc(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:{...ce},avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=M,this.readContiguousBoxes(e.slice(N,D.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=ac(e);e.skip(3);const r=uc(e);for(let a=0;a<r;a++){const r=e.filePos,a=or(e);if(!a)break;t.internalCodecId=a.name;const s=a.name.toLowerCase();if("video"===t.info.type){e.skip(24),t.info.width=nc(e),t.info.height=nc(e),t.info.squarePixelWidth=t.info.width,t.info.squarePixelHeight=t.info.height,e.skip(50),t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+a.totalSize-e.filePos));const i="encv"===s?t.frmaCodecString:s;t.frmaCodecString=null,"avc1"===i||"avc3"===i?(t.info.codec="avc",t.info.avcType="avc1"===i?1:3):"hvc1"===i||"hev1"===i?t.info.codec="hevc":"vp08"===i?t.info.codec="vp8":"vp09"===i?t.info.codec="vp9":"av01"===i?t.info.codec="av1":Oi.includes(s)?(t.info.codec="prores",t.info.proresFormat=s):null===i?ct._warn("Unknown encrypted video codec due to missing frma box."):ct._warn(`Unsupported video codec (sample entry type '${a.name}').`)}else{e.skip(8);const n=nc(e);e.skip(6);let o=nc(e),c=nc(e);e.skip(4);let l=uc(e)/65536,u=null;0===i&&n>0&&(1===n?(e.skip(4),c=8*uc(e),e.skip(8)):2===n&&(e.skip(4),l=yc(e),o=uc(e),e.skip(4),c=uc(e),u=uc(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=l,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+a.totalSize-e.filePos));const h="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===h);else if("opus"===h)t.info.codec="opus",t.info.sampleRate=Wi;else if("flac"===h)t.info.codec="flac";else if("ulaw"===h)t.info.codec="ulaw";else if("alaw"===h)t.info.codec="alaw";else if("ac-3"===h)t.info.codec="ac3";else if("ec-3"===h)t.info.codec="eac3";else if(Li.includes(h))t.info.codec="dts",t.info.dtsFormat=h;else if("twos"===h)8===c?t.info.codec="pcm-s8":16===c?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(ct._warn(`Unsupported sample size ${c} for codec 'twos'.`),t.info.codec=null);else if("sowt"===h)8===c?t.info.codec="pcm-s8":16===c?t.info.codec="pcm-s16":(ct._warn(`Unsupported sample size ${c} for codec 'sowt'.`),t.info.codec=null);else if("raw "===h)t.info.codec="pcm-u8";else if("in24"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===h){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(ct._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(ct._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===h){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(ct._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(ct._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===h&&null!==u){const e=c+7>>3,i=Boolean(1&u),r=Boolean(2&u),a=4&u?-1:0;c>0&&c<=64&&(i?32===c&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):a&1<<e-1?1===e?t.info.codec="pcm-s8":2===e?t.info.codec=r?"pcm-s16be":"pcm-s16":3===e?t.info.codec=r?"pcm-s24be":"pcm-s24":4===e&&(t.info.codec=r?"pcm-s32be":"pcm-s32"):1===e&&(t.info.codec="pcm-u8")),null===t.info.codec&&ct._warn("Unsupported PCM format.")}else null===h?ct._warn("Unknown encrypted audio codec due to missing frma box."):ct._warn(`Unsupported audio codec (sample entry type '${a.name}').`)}e.filePos=r+a.totalSize}}break;case"frma":{const t=this.currentTrack;if(!t)break;const i=bc(e,4).toLowerCase();t.frmaCodecString=i}break;case"schm":{const t=this.currentTrack;if(!t)break;e.skip(4);const i=bc(e,4);"cenc"===i||"cens"===i||"cbcs"===i?t.encryptionInfo={scheme:i,defaultKid:null,defaultIsProtected:null,defaultPerSampleIvSize:null,defaultConstantIv:null,defaultCryptByteBlock:null,defaultSkipByteBlock:null}:ct._warn(`Unsupported encryption scheme '${i}'.`)}break;case"tenc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=ac(e);e.skip(3),e.skip(1);const r=ac(e);if(i>0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==ac(e),t.encryptionInfo.defaultPerSampleIvSize=ac(e),t.encryptionInfo.defaultKid=de(rc(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=ac(e),r=new Uint8Array(16);r.set(rc(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(j(t.info),0===D.contentSize)break;t.info.codecDescription=rc(e,D.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(j(t.info),0===D.contentSize)break;t.info.codecDescription=rc(e,D.contentSize)}break;case"vpcC":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type),e.skip(4);const i=ac(e),r=ac(e),a=ac(e),s=a>>4,n=a>>1&7,o=1&a,c=ac(e),l=ac(e),u=ac(e);t.info.vp9CodecInfo={profile:i,level:r,bitDepth:s,chromaSubsampling:n,videoFullRangeFlag:o,colourPrimaries:c,transferCharacteristics:l,matrixCoefficients:u}}break;case"av1C":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type),e.skip(1);const i=ac(e),r=i>>5,a=31&i,s=ac(e),n=s>>7,o=s>>6&1,c=s>>4&1,l=s>>3&1,u=s>>2&1,h=3&s,d=2===r&&o?s>>5&1?12:10:o?10:8;e.skip(1);const f=rc(e,D.contentSize-4),m=ii(f);t.info.av1CodecInfo={profile:r,level:a,tier:n,bitDepth:d,monochrome:c,chromaSubsamplingX:l,chromaSubsamplingY:u,chromaSamplePosition:h,videoFullRangeFlag:m?.videoFullRangeFlag??0,colourPrimaries:m?.colourPrimaries??2,transferCharacteristics:m?.transferCharacteristics??2,matrixCoefficients:m?.matrixCoefficients??2}}break;case"colr":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type);const i=bc(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=nc(e),a=nc(e),s=nc(e);let n;"nclx"===i&&(n=Boolean(128&ac(e))),t.info.colorSpace={primaries:ie[r],transfer:ae[a],matrix:ne[s],fullRange:n}}break;case"pasp":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type);const i=uc(e),r=uc(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==t.info?.type)break;e.skip(4);j(3===ac(e)),ur(e),e.skip(2);const i=ac(e),r=0!==(64&i),a=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=ac(e);e.skip(t)}a&&e.skip(2);j(4===ac(e));const s=ur(e),n=e.filePos,o=ac(e);if(64===o||103===o?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===o,objectType:null}):105===o||107===o?t.info.codec="mp3":221===o?t.info.codec="vorbis":169===o?t.info.codec="dts":ct._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-n){j(5===ac(e));const i=ur(e);if(t.info.codecDescription=rc(e,i),"aac"===t.info.codec){const e=pt(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),t.info.pcmLittleEndian=!!(255&nc(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),e.skip(4);const i=ac(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=ac(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),e.skip(1);const i=ac(e),r=nc(e),a=uc(e),s=cc(e),n=ac(e);let o;o=0!==n?rc(e,2+i):new Uint8Array(0);const c=new Uint8Array(19+o.byteLength),l=new DataView(c.buffer);l.setUint32(0,1332770163,!1),l.setUint32(4,1214603620,!1),l.setUint8(8,1),l.setUint8(9,i),l.setUint16(10,r,!0),l.setUint32(12,a,!0),l.setInt16(16,s,!0),l.setUint8(18,n),c.set(o,19),t.info.codecDescription=c,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),e.skip(4);const i=127,r=128,a=e.filePos;for(;e.filePos<O;){const a=ac(e),s=oc(e);if((a&i)===oi.STREAMINFO){e.skip(10);const i=uc(e),r=i>>>12,a=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=a,e.skip(20)}else e.skip(s);if(a&r)break}const s=e.filePos;e.filePos=a;const n=rc(e,s-a),o=new Uint8Array(4+n.byteLength);new DataView(o.buffer).setUint32(0,1716281667,!1),o.set(n,4),t.info.codecDescription=o}break;case"dac3":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type);const i=rc(e,3),r=new dt(i),a=r.readBits(2);r.skipBits(8);const s=r.readBits(3),n=r.readBits(1);a<3&&(t.info.sampleRate=yt[a]),t.info.numberOfChannels=ui[s]+n}break;case"dec3":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type);const i=(e=>{if(e.length<2)return null;const t=new dt(e),i=t.readBits(13),r=t.readBits(3),a=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),n=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let c=0;o>0?c=t.readBits(9):t.skipBits(1),a.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:n,numDepSub:o,chanLoc:c})}return 0===a.length?null:{dataRate:i,substreams:a}})(rc(e,D.contentSize));if(!i){ct._warn("Invalid dec3 box contents, ignoring.");break}const r=pi(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=gi(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type);const i=(e=>{if(e.length<20)return null;const t=J(e),i=t.getUint32(0);if(0===i)return null;const r=new dt(e);r.seekToByte(13);const a=r.readBits(2);r.skipBits(5);const s=r.readBits(1),n=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let c=null;return 0!==o?c=Ei(o):n<wi.length&&(c=wi[n]+s),{sampleRate:i,maxBitrate:t.getUint32(4),avgBitrate:t.getUint32(8),pcmSampleDepth:e[12],sampleCount:Pi[a],channelLayout:o,numberOfChannels:c}})(rc(e,Math.min(D.contentSize,20)));if(!i){ct._warn("Invalid ddts box contents, ignoring.");break}t.info.sampleRate=i.sampleRate,null!==i.numberOfChannels&&(t.info.numberOfChannels=i.numberOfChannels)}break;case"stts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);let r=0,a=0;for(let s=0;s<i;s++){const i=uc(e),s=uc(e);t.sampleTable.sampleTimingEntries.push({startIndex:r,startDecodeTimestamp:a,count:i,delta:s}),r+=i,a+=i*s}}break;case"ctts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);let r=0;for(let a=0;a<i;a++){const i=uc(e),a=dc(e);t.sampleTable.sampleCompositionTimeOffsets.push({startIndex:r,count:i,offset:a}),r+=i}}break;case"stsz":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e),r=uc(e);if(0===i)for(let a=0;a<r;a++){const i=uc(e);t.sampleTable.sampleSizes.push(i)}else t.sampleTable.sampleSizes.push(i)}break;case"stz2":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),e.skip(3);const i=ac(e),r=uc(e),a=rc(e,Math.ceil(r*i/8)),s=new dt(a);for(let e=0;e<r;e++){const e=s.readBits(i);t.sampleTable.sampleSizes.push(e)}}break;case"stss":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),t.sampleTable.keySampleIndices=[];const i=uc(e);for(let r=0;r<i;r++){const i=uc(e)-1;t.sampleTable.keySampleIndices.push(i)}0!==t.sampleTable.keySampleIndices[0]&&t.sampleTable.keySampleIndices.unshift(0)}break;case"stsc":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);for(let a=0;a<i;a++){const i=uc(e)-1,r=uc(e),a=uc(e);t.sampleTable.sampleToChunk.push({startSampleIndex:-1,startChunkIndex:i,samplesPerChunk:r,sampleDescriptionIndex:a})}let r=0;for(let e=0;e<t.sampleTable.sampleToChunk.length;e++)if(t.sampleTable.sampleToChunk[e].startSampleIndex=r,e<t.sampleTable.sampleToChunk.length-1){r+=(t.sampleTable.sampleToChunk[e+1].startChunkIndex-t.sampleTable.sampleToChunk[e].startChunkIndex)*t.sampleTable.sampleToChunk[e].samplesPerChunk}}break;case"stco":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);for(let r=0;r<i;r++){const i=uc(e);t.sampleTable.chunkOffsets.push(i)}}break;case"co64":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);for(let r=0;r<i;r++){const i=mc(e);t.sampleTable.chunkOffsets.push(i)}}break;case"mvex":this.isFragmented=!0,this.readContiguousBoxes(e.slice(N,D.contentSize));break;case"mehd":{const t=ac(e);e.skip(3);const i=1===t?mc(e):uc(e);this.movieDurationInTimescale=i}break;case"trex":{e.skip(4);const t=uc(e),i=uc(e),r=uc(e),a=uc(e),s=uc(e);this.fragmentTrackDefaults.push({trackId:t,defaultSampleDescriptionIndex:i,defaultSampleDuration:r,defaultSampleSize:a,defaultSampleFlags:s})}break;case"tfra":{const t=ac(e);e.skip(3);const i=uc(e),r=this.tracks.find(e=>e.id===i);if(!r)break;const a=uc(e),s=(12&a)>>2,n=3&a,o=[ac,nc,oc,uc],c=o[(48&a)>>4],l=o[s],u=o[n],h=uc(e);for(let d=0;d<h;d++){const i=1===t?mc(e):uc(e),a=1===t?mc(e):uc(e);c(e),l(e),u(e),r.fragmentLookupTable.push({timestamp:i,moofOffset:a})}r.fragmentLookupTable.sort((e,t)=>e.timestamp-t.timestamp);for(let e=0;e<r.fragmentLookupTable.length-1;e++){const t=r.fragmentLookupTable[e],i=r.fragmentLookupTable[e+1];t.timestamp===i.timestamp&&(r.fragmentLookupTable.splice(e+1,1),e--)}}break;case"moof":this.currentFragment={moofOffset:M,moofSize:D.totalSize,implicitBaseDataOffset:M,trackData:new Map,psshBoxes:[]},this.readContiguousBoxes(e.slice(N,D.contentSize)),this.lastReadFragment=this.currentFragment,this.currentFragment=null;break;case"traf":if(j(this.currentFragment),this.readContiguousBoxes(e.slice(N,D.contentSize)),this.currentTrack){const e=this.currentFragment.trackData.get(this.currentTrack.id);e:if(e){if(0===e.samples.length){this.currentFragment.trackData.delete(this.currentTrack.id);break e}e.presentationTimestamps=e.samples.map((e,t)=>({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let a=0;a<e.presentationTimestamps.length;a++){const t=e.presentationTimestamps[a],i=e.samples[t.sampleIndex];if(null===e.firstKeyFrameTimestamp&&i.isKeyFrame&&(e.firstKeyFrameTimestamp=i.presentationTimestamp),a<e.presentationTimestamps.length-1){const r=e.presentationTimestamps[a+1].presentationTimestamp-t.presentationTimestamp;i.duration=r}}const t=e.samples[e.presentationTimestamps[0].sampleIndex],i=e.samples[X(e.presentationTimestamps).sampleIndex];e.startTimestamp=t.presentationTimestamp,e.endTimestamp=i.presentationTimestamp+i.duration;const{currentFragmentState:r}=this.currentTrack;j(r),null!==r.startTimestamp&&(Rr(e,r.startTimestamp),e.startTimestampIsFinal=!0),r.encryptionAuxInfo&&!e.samples[0].encryption&&(e.encryptionAuxInfo=r.encryptionAuxInfo)}this.currentTrack.currentFragmentState=null,this.currentTrack=null}break;case"pssh":{if(this.input._formatOptions.isobmff?._suppressPsshParsing)break;const t=sr(rc(e,D.contentSize));this.currentFragment?this.currentFragment.psshBoxes.push(t):this.currentTrack||this.psshBoxes.push(t)}break;case"tfhd":{j(this.currentFragment),e.skip(1);const t=oc(e),i=Boolean(1&t),r=Boolean(2&t),a=Boolean(8&t),s=Boolean(16&t),n=Boolean(32&t),o=Boolean(65536&t),c=Boolean(131072&t),l=uc(e),u=this.tracks.find(e=>e.id===l);if(!u)break;const h=this.fragmentTrackDefaults.find(e=>e.trackId===l);this.currentTrack=u,u.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:h?.defaultSampleDescriptionIndex??null,defaultSampleDuration:h?.defaultSampleDuration??null,defaultSampleSize:h?.defaultSampleSize??null,defaultSampleFlags:h?.defaultSampleFlags??null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=mc(e):c&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=uc(e)),a&&(u.currentFragmentState.defaultSampleDuration=uc(e)),s&&(u.currentFragmentState.defaultSampleSize=uc(e)),n&&(u.currentFragmentState.defaultSampleFlags=uc(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;j(t.currentFragmentState);const i=ac(e);e.skip(3);const r=0===i?uc(e):mc(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;j(this.currentFragment),j(t.currentFragmentState);const i=ac(e),r=oc(e),a=Boolean(1&r),s=Boolean(4&r),n=Boolean(256&r),o=Boolean(512&r),c=Boolean(1024&r),l=Boolean(2048&r),u=uc(e);let h=null;a&&(h=dc(e));let d,f=null;s&&(f=uc(e)),this.currentFragment.trackData.has(t.id)?(d=this.currentFragment.trackData.get(t.id),null!==h&&(d.currentOffset=t.currentFragmentState.baseDataOffset+h)):(d={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(h??0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,d));for(let m=0;m<u;m++){let r,a,s;n?r=uc(e):(j(null!==t.currentFragmentState.defaultSampleDuration),r=t.currentFragmentState.defaultSampleDuration),o?a=uc(e):(j(null!==t.currentFragmentState.defaultSampleSize),a=t.currentFragmentState.defaultSampleSize),c?s=uc(e):(j(null!==t.currentFragmentState.defaultSampleFlags),s=t.currentFragmentState.defaultSampleFlags),0===m&&null!==f&&(s=f);let u=0;l&&(u=0===i?uc(e):dc(e));const h=!(65536&s);d.samples.push({presentationTimestamp:d.currentTimestamp+u,duration:r,byteOffset:d.currentOffset,byteSize:a,isKeyFrame:h,encryption:null}),d.currentOffset+=a,d.currentTimestamp+=r}this.currentFragment.implicitBaseDataOffset=d.currentOffset}break;case"saiz":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;e.skip(1);if(1&oc(e)){const i=bc(e,4),r=uc(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const i=ac(e),r=uc(e);let a=null;0===i&&r>0&&(a=rc(e,r));const s=Mr(t);s.defaultSampleInfoSize=i,s.sampleSizes=a,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=ac(e);if(1&oc(e)){const i=bc(e,4),r=uc(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=uc(e);if(0===r)break;r>1&&ct._warn("Multiple saio entries are not supported; using the first offset only.");let a=0===i?uc(e):Number(mc(e));this.currentFragment&&(a+=this.currentFragment.moofOffset);Mr(t).offset=a}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;j(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=oc(e),a=Boolean(2&r),s=uc(e),n=t.encryptionInfo.defaultPerSampleIvSize;j(null!==n);for(let o=0;o<Math.min(s,i.samples.length);o++){const r=new Uint8Array(16);n>0?r.set(rc(e,n),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(a){const t=nc(e);s=[];for(let i=0;i<t;i++){const t=nc(e),i=uc(e);s.push({clearLen:t,protectedLen:i})}}i.samples[o].encryption={iv:r,subsamples:s}}}break;case"udta":{const p=this.iterateContiguousBoxes(e.slice(N,D.contentSize));for(const{boxInfo:e,slice:g}of p){if("meta"!==e.name&&!this.currentTrack){const n=g.filePos;(t=this.metadataTags).raw??(t.raw={}),"\xa9"===e.name[0]?(i=this.metadataTags.raw)[r=e.name]??(i[r]=hr(g)):(a=this.metadataTags.raw)[s=e.name]??(a[s]=rc(g,e.contentSize)),g.filePos=n}switch(e.name){case"meta":g.skip(-e.headerSize),this.traverseBox(g);break;case"\xa9nam":case"name":this.currentTrack?this.currentTrack.name=Z.decode(rc(g,e.contentSize)):(n=this.metadataTags).title??(n.title=hr(g));break;case"\xa9des":this.currentTrack||((o=this.metadataTags).description??(o.description=hr(g)));break;case"\xa9ART":this.currentTrack||((c=this.metadataTags).artist??(c.artist=hr(g)));break;case"\xa9alb":this.currentTrack||((l=this.metadataTags).album??(l.album=hr(g)));break;case"albr":this.currentTrack||((u=this.metadataTags).albumArtist??(u.albumArtist=hr(g)));break;case"\xa9gen":this.currentTrack||((h=this.metadataTags).genre??(h.genre=hr(g)));break;case"\xa9day":if(!this.currentTrack){const e=new Date(hr(g));Number.isNaN(e.getTime())||((d=this.metadataTags).date??(d.date=e))}break;case"\xa9cmt":this.currentTrack||((f=this.metadataTags).comment??(f.comment=hr(g)));break;case"\xa9lyr":this.currentTrack||((m=this.metadataTags).lyrics??(m.lyrics=hr(g)))}}}break;case"meta":{if(this.currentTrack)break;const t=0!==uc(e);this.currentMetadataKeys=new Map,t?this.readContiguousBoxes(e.slice(N,D.contentSize)):this.readContiguousBoxes(e.slice(N+4,D.contentSize-4)),this.currentMetadataKeys=null}break;case"keys":{if(!this.currentMetadataKeys)break;e.skip(4);const t=uc(e);for(let i=0;i<t;i++){const t=uc(e);e.skip(4);const r=Z.decode(rc(e,t-8));this.currentMetadataKeys.set(i+1,r)}}break;case"ilst":{if(!this.currentMetadataKeys)break;const t=this.iterateContiguousBoxes(e.slice(N,D.contentSize));for(const{boxInfo:e,slice:i}of t){let t=e.name;const r=(t.charCodeAt(0)<<24)+(t.charCodeAt(1)<<16)+(t.charCodeAt(2)<<8)+t.charCodeAt(3);this.currentMetadataKeys.has(r)&&(t=this.currentMetadataKeys.get(r));const a=dr(i);switch((p=this.metadataTags).raw??(p.raw={}),(g=this.metadataTags.raw)[t]??(g[t]=a),t){case"\xa9nam":case"titl":case"com.apple.quicktime.title":case"title":"string"===typeof a&&((k=this.metadataTags).title??(k.title=a));break;case"\xa9des":case"desc":case"dscp":case"com.apple.quicktime.description":case"description":"string"===typeof a&&((y=this.metadataTags).description??(y.description=a));break;case"\xa9ART":case"com.apple.quicktime.artist":case"artist":"string"===typeof a&&((b=this.metadataTags).artist??(b.artist=a));break;case"\xa9alb":case"albm":case"com.apple.quicktime.album":case"album":"string"===typeof a&&((w=this.metadataTags).album??(w.album=a));break;case"aART":case"album_artist":"string"===typeof a&&((T=this.metadataTags).albumArtist??(T.albumArtist=a));break;case"\xa9cmt":case"com.apple.quicktime.comment":case"comment":"string"===typeof a&&((S=this.metadataTags).comment??(S.comment=a));break;case"\xa9gen":case"gnre":case"com.apple.quicktime.genre":case"genre":"string"===typeof a&&((v=this.metadataTags).genre??(v.genre=a));break;case"\xa9lyr":case"lyrics":"string"===typeof a&&((P=this.metadataTags).lyrics??(P.lyrics=a));break;case"\xa9day":case"rldt":case"com.apple.quicktime.creationdate":case"date":if("string"===typeof a){const e=new Date(a);Number.isNaN(e.getTime())||((I=this.metadataTags).date??(I.date=e))}break;case"covr":case"com.apple.quicktime.artwork":a instanceof lt?((x=this.metadataTags).images??(x.images=[]),this.metadataTags.images.push({data:a.data,kind:"coverFront",mimeType:a.mimeType})):a instanceof Uint8Array&&((C=this.metadataTags).images??(C.images=[]),this.metadataTags.images.push({data:a,kind:"coverFront",mimeType:"image/*"}));break;case"track":if("string"===typeof a){const e=a.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&((B=this.metadataTags).trackNumber??(B.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((E=this.metadataTags).tracksTotal??(E.tracksTotal=i))}break;case"trkn":if(a instanceof Uint8Array&&a.length>=6){const e=J(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((_=this.metadataTags).trackNumber??(_.trackNumber=t)),i>0&&((R=this.metadataTags).tracksTotal??(R.tracksTotal=i))}break;case"disc":case"disk":if(a instanceof Uint8Array&&a.length>=6){const e=J(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((F=this.metadataTags).discNumber??(F.discNumber=t)),i>0&&((A=this.metadataTags).discsTotal??(A.discsTotal=i))}}}}}return e.filePos=O,!0}}class Pr{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.internalTrack;if(e.durationInMediaTimescale<=0)return null;j(e.trackBacking);const t=await e.trackBacking.getFirstPacket({metadataOnly:!0});return(t?.timestamp??0)+e.durationInMediaTimescale/e.timescale}async getLiveRefreshInterval(){return null}async getFirstPacket(e){const t=await this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)}mapTimestampIntoTimescale(e){return Ce(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}async getPacket(e,t){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a=Cr(r,i),s=await this.fetchPacketForSampleIndex(a,t);return Ar(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=pe(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s}async getNextPacket(e,t){const i=this.packetToSampleIndex.get(e);if(void 0!==i)return this.fetchPacketForSampleIndex(i+1,t);const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1<t.samples.length)return{sampleIndex:r.sampleIndex+1,correctSampleFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{sampleIndex:0,correctSampleFound:!0}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)}async getKeyPacket(e,t){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a=Br(r,i),s=await this.fetchPacketForSampleIndex(a,t);return Ar(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=we(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s}async getNextKeyPacket(e,t){const i=this.packetToSampleIndex.get(e);if(void 0!==i){const e=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=_r(e,i);return this.fetchPacketForSampleIndex(r,t)}const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return j(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)}async fetchPacketForSampleIndex(e,t){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=Er(i,e);if(!r)return null;let a;if(t.metadataOnly)a=rr;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(Xe(t)&&(t=await t),!t)return null;if(a=rc(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=await Dr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);e<i.length&&(t=i[e])}t??(t=Nr(this.internalTrack.encryptionInfo)),t&&(a=await Or(this.internalTrack,t,a,null))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,n=r.duration/this.internalTrack.timescale,o=new ar(a,r.isKeyFrame?"key":"delta",s,n,e,r.sampleSize);return this.packetToSampleIndex.set(o,e),o}async fetchPacketInFragment(e,t,i){if(-1===t)return null;const r=e.trackData.get(this.internalTrack.id).samples[t];let a;if(j(r),i.metadataOnly)a=rr;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.byteOffset,r.byteSize);if(Xe(t)&&(t=await t),!t)return null;if(a=rc(t,r.byteSize),this.internalTrack.encryptionInfo){const t=r.encryption??Nr(this.internalTrack.encryptionInfo);t&&(a=await Or(this.internalTrack,t,a,e))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,n=r.duration/this.internalTrack.timescale,o=new ar(a,r.isKeyFrame?"key":"delta",s,n,e.moofOffset+t,r.byteSize);return this.packetToFragmentLocation.set(o,{fragment:e,sampleIndex:t}),o}async performFragmentedLookup(e,t,i,r,a){const s=this.internalTrack.demuxer;let n=null,o=null,c=-1;if(e){const{sampleIndex:i,correctSampleFound:r}=t(e);if(r)return this.fetchPacketInFragment(e,i,a);-1!==i&&(o=e,c=i)}const l=pe(this.internalTrack.fragmentLookupTable,i,e=>e.timestamp),u=-1!==l?this.internalTrack.fragmentLookupTable[l]:null,h=pe(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),d=-1!==h?this.internalTrack.fragmentPositionCache[h]:null,f=Math.max(u?.moofOffset??0,d?.moofOffset??0)||null;let m;for(e?null===f||e.moofOffset>=f?(m=e.moofOffset+e.moofSize,n=e):m=f:m=f??0;;){if(n){const e=n.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=s.reader.requestSliceRange(m,8,16);if(Xe(e)&&(e=await e),!e)break;const i=m,l=or(e);if(!l)break;if("moof"===l.name){n=await s.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(n);if(r)return this.fetchPacketInFragment(n,e,a);-1!==e&&(o=n,c=e)}m=i+l.totalSize}if(u&&(!o||o.moofOffset<u.moofOffset)){const e=this.internalTrack.fragmentLookupTable[l-1];j(!e||e.timestamp<u.timestamp);const i=e?.timestamp??-1/0;return this.performFragmentedLookup(null,t,i,r,a)}return o?this.fetchPacketInFragment(o,c,a):null}}class Ir extends Pr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.rotation}async getColorSpace(){const e=await this.getDecoderConfig();return e?{primaries:e.colorSpace?.primaries,transfer:e.colorSpace?.transfer,matrix:e.colorSpace?.matrix,fullRange:e.colorSpace?.fullRange}:this.internalTrack.info.colorSpace}async canBeTransparent(){return"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{var e,t,i,r,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=await this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&ri(e.data)}}else{const e=await this.getFirstPacket({}),t=e&&ii(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const e=await this.getFirstPacket({}),t=e&&ei(e.data);t&&(this.internalTrack.info.vp9CodecInfo={...this.internalTrack.info.vp9CodecInfo??t,videoFullRangeFlag:t.videoFullRangeFlag,colourPrimaries:t.colourPrimaries,transferCharacteristics:t.transferCharacteristics,matrixCoefficients:t.matrixCoefficients})}else{const e=await this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&Wt(e.data)}else{const e=await this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&Ft(e.data)}if(!oe(this.internalTrack.info.colorSpace)){const a=Ui(this.internalTrack.info);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const s={codec:zi(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(s.displayAspectWidth=this.internalTrack.info.squarePixelWidth,s.displayAspectHeight=this.internalTrack.info.squarePixelHeight),s})()):null}}class xr extends Pr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&xi(e.data)}return{codec:qi(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Cr=(e,t)=>{if(e.presentationTimestamps){const i=pe(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=pe(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},Br=(e,t)=>{if(!e.keySampleIndices)return Cr(e,t);if(e.presentationTimestamps){const i=pe(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==me(e.keySampleIndices,i,e=>e))return i}return-1}{const i=Cr(e,t),r=pe(e.keySampleIndices,i,e=>e);return e.keySampleIndices[r]??-1}},Er=(e,t)=>{const i=pe(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let a=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=pe(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),n=e.sampleCompositionTimeOffsets[s];n&&t-n.startIndex<n.count&&(a+=n.offset);const o=e.sampleSizes[Math.min(t,e.sampleSizes.length-1)],c=pe(e.sampleToChunk,t,e=>e.startSampleIndex),l=e.sampleToChunk[c];j(l);const u=l.startChunkIndex+Math.floor((t-l.startSampleIndex)/l.samplesPerChunk),h=e.chunkOffsets[u],d=l.startSampleIndex+(u-l.startChunkIndex)*l.samplesPerChunk;let f=0,m=h;if(1===e.sampleSizes.length)m+=o*(t-d),f+=o*l.samplesPerChunk;else for(let g=d;g<d+l.samplesPerChunk;g++){const i=e.sampleSizes[g];g<t&&(m+=i),f+=i}let p=r.delta;if(e.presentationTimestamps){const i=e.presentationTimestampIndexMap[t];if(j(void 0!==i),i<e.presentationTimestamps.length-1){p=e.presentationTimestamps[i+1].presentationTimestamp-a}}return{presentationTimestamp:a,duration:p,sampleOffset:m,sampleSize:o,chunkOffset:h,chunkSize:f,isKeyFrame:!e.keySampleIndices||-1!==me(e.keySampleIndices,t,e=>e)}},_r=(e,t)=>{if(!e.keySampleIndices)return t+1;const i=pe(e.keySampleIndices,t,e=>e);return e.keySampleIndices[i+1]??-1},Rr=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},Fr=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},Ar=e=>0===e.sampleSizes.length,Mr=e=>{var t;return e.currentFragmentState?(t=e.currentFragmentState).encryptionAuxInfo??(t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}):e.encryptionAuxInfo??(e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null})},Dr=async(e,t,i)=>{if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{j(i.sampleSizes);for(let e=0;e<i.sampleCount;e++)r+=i.sampleSizes[e]}let a=e.requestSlice(i.offset,r);if(Xe(a)&&(a=await a),!a)throw new Error("Failed to read auxiliary encryption info.");const s=t.defaultPerSampleIvSize;j(null!==s);const n=[];for(let o=0;o<i.sampleCount;o++){const e=i.defaultSampleInfoSize>0?i.defaultSampleInfoSize:i.sampleSizes[o],r=new Uint8Array(16);s>0?r.set(rc(a,s),0):r.set(t.defaultConstantIv,0);let c=null;if(e>s){const e=nc(a);c=[];for(let t=0;t<e;t++){const e=nc(a),t=uc(a);c.push({clearLen:e,protectedLen:t})}}n.push({iv:r,subsamples:c})}return i.resolved=n,n},Nr=e=>e.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,Or=async(e,t,i,r)=>{j(e.encryptionInfo);const a=e.encryptionInfo;j(null!==a.defaultKid);const s=a.defaultKid;let n;const o=e.demuxer.decryptionKeyCache.get(s);if(o)n=await o;else{if(!e.demuxer.input._formatOptions.isobmff?.resolveKeyId)throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=(async()=>{let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(s));for(let e=0;e<t.length-1;e++)for(let i=e+1;i<t.length;i++)nr(t[e],t[i])&&(t.splice(i,1),i--)}const i=await e.demuxer.input._formatOptions.isobmff.resolveKeyId({keyId:s,psshBoxes:t});if(!("string"===typeof i&&32===i.length&&he.test(i)||i instanceof Uint8Array&&16===i.byteLength))throw new TypeError("resolveKeyId must return a 32-character hex string or a 16-byte Uint8Array containing the decryption key.");return i instanceof Uint8Array?i:(e=>{j(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;i<e.length;i+=2)t[i/2]=parseInt(e.slice(i,i+2),16);return t})(i)})();e.demuxer.decryptionKeyCache.set(s,t),n=await t}return"cenc"===a.scheme||"cens"===a.scheme?Lr(n,a,t,i):zr(n,a,t,i)},Lr=async(e,t,i,r)=>{const a=new Uint8Array(16);a.set(i.iv,0);const s=await crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),n=async e=>{const t=await crypto.subtle.decrypt({name:"AES-CTR",counter:a,length:64},s,e);return new Uint8Array(t)};if(!i.subsamples)return n(r);j(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=Ur(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let c=0;for(const m of o)for(const e of m.perSubsample)c+=e.length;const l=new Uint8Array(c);let u=0;for(const m of o)for(const e of m.perSubsample)l.set(r.subarray(e.offset,e.offset+e.length),u),u+=e.length;const h=await n(l),d=new Uint8Array(r);let f=0;for(const m of o)for(const e of m.perSubsample)d.set(h.subarray(f,f+e.length),e.offset),f+=e.length;return d},zr=(e,t,i,r)=>{const a=new Sr;a.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,n=t.defaultSkipByteBlock;if(j(null!==s&&null!==n),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i<t;i++){const t=16*i;a.in.set(r.subarray(t,t+16)),a.decrypt(),e.set(a.out,t)}return e}if(0===s&&0===n)throw new Error("cbcs with subsamples requires pattern encryption.");const o=new Uint8Array(r),c=Ur(i.subsamples,s,n),l=new DataView(i.iv.buffer,i.iv.byteOffset,16);for(const u of c){a.iv[0]=l.getUint32(0,!1),a.iv[1]=l.getUint32(4,!1),a.iv[2]=l.getUint32(8,!1),a.iv[3]=l.getUint32(12,!1);for(const e of u.perSubsample){const t=e.length/16;for(let i=0;i<t;i++){const t=e.offset+16*i;a.in.set(r.subarray(t,t+16)),a.decrypt(),o.set(a.out,t)}}}return o},Ur=(e,t,i)=>{const r=[],a=0!==t||0!==i;let s=0;for(const n of e){s+=n.clearLen;const e=[];if(a){let r=n.protectedLen,a=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:a,length:s}),a+=s,r-=s;const n=Math.min(16*i,r);a+=n,r-=n}s+=n.protectedLen}else n.protectedLen>0&&e.push({offset:s,length:n.protectedLen}),s+=n.protectedLen;r.push({perSubsample:e})}return r};var qr,Wr;(Wr=qr||(qr={}))[Wr.EBML=440786851]="EBML",Wr[Wr.EBMLVersion=17030]="EBMLVersion",Wr[Wr.EBMLReadVersion=17143]="EBMLReadVersion",Wr[Wr.EBMLMaxIDLength=17138]="EBMLMaxIDLength",Wr[Wr.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",Wr[Wr.DocType=17026]="DocType",Wr[Wr.DocTypeVersion=17031]="DocTypeVersion",Wr[Wr.DocTypeReadVersion=17029]="DocTypeReadVersion",Wr[Wr.Void=236]="Void",Wr[Wr.Segment=408125543]="Segment",Wr[Wr.SeekHead=290298740]="SeekHead",Wr[Wr.Seek=19899]="Seek",Wr[Wr.SeekID=21419]="SeekID",Wr[Wr.SeekPosition=21420]="SeekPosition",Wr[Wr.Duration=17545]="Duration",Wr[Wr.Info=357149030]="Info",Wr[Wr.TimestampScale=2807729]="TimestampScale",Wr[Wr.MuxingApp=19840]="MuxingApp",Wr[Wr.WritingApp=22337]="WritingApp",Wr[Wr.Tracks=374648427]="Tracks",Wr[Wr.TrackEntry=174]="TrackEntry",Wr[Wr.TrackNumber=215]="TrackNumber",Wr[Wr.TrackUID=29637]="TrackUID",Wr[Wr.TrackType=131]="TrackType",Wr[Wr.FlagEnabled=185]="FlagEnabled",Wr[Wr.FlagDefault=136]="FlagDefault",Wr[Wr.FlagForced=21930]="FlagForced",Wr[Wr.FlagOriginal=21934]="FlagOriginal",Wr[Wr.FlagHearingImpaired=21931]="FlagHearingImpaired",Wr[Wr.FlagVisualImpaired=21932]="FlagVisualImpaired",Wr[Wr.FlagCommentary=21935]="FlagCommentary",Wr[Wr.FlagLacing=156]="FlagLacing",Wr[Wr.Name=21358]="Name",Wr[Wr.Language=2274716]="Language",Wr[Wr.LanguageBCP47=2274717]="LanguageBCP47",Wr[Wr.CodecID=134]="CodecID",Wr[Wr.CodecPrivate=25506]="CodecPrivate",Wr[Wr.CodecDelay=22186]="CodecDelay",Wr[Wr.SeekPreRoll=22203]="SeekPreRoll",Wr[Wr.DefaultDuration=2352003]="DefaultDuration",Wr[Wr.Video=224]="Video",Wr[Wr.PixelWidth=176]="PixelWidth",Wr[Wr.PixelHeight=186]="PixelHeight",Wr[Wr.DisplayWidth=21680]="DisplayWidth",Wr[Wr.DisplayHeight=21690]="DisplayHeight",Wr[Wr.DisplayUnit=21682]="DisplayUnit",Wr[Wr.AlphaMode=21440]="AlphaMode",Wr[Wr.Audio=225]="Audio",Wr[Wr.SamplingFrequency=181]="SamplingFrequency",Wr[Wr.Channels=159]="Channels",Wr[Wr.BitDepth=25188]="BitDepth",Wr[Wr.SimpleBlock=163]="SimpleBlock",Wr[Wr.BlockGroup=160]="BlockGroup",Wr[Wr.Block=161]="Block",Wr[Wr.BlockAdditions=30113]="BlockAdditions",Wr[Wr.BlockMore=166]="BlockMore",Wr[Wr.BlockAdditional=165]="BlockAdditional",Wr[Wr.BlockAddID=238]="BlockAddID",Wr[Wr.BlockDuration=155]="BlockDuration",Wr[Wr.ReferenceBlock=251]="ReferenceBlock",Wr[Wr.Cluster=524531317]="Cluster",Wr[Wr.Timestamp=231]="Timestamp",Wr[Wr.Cues=475249515]="Cues",Wr[Wr.CuePoint=187]="CuePoint",Wr[Wr.CueTime=179]="CueTime",Wr[Wr.CueTrackPositions=183]="CueTrackPositions",Wr[Wr.CueTrack=247]="CueTrack",Wr[Wr.CueClusterPosition=241]="CueClusterPosition",Wr[Wr.Colour=21936]="Colour",Wr[Wr.MatrixCoefficients=21937]="MatrixCoefficients",Wr[Wr.TransferCharacteristics=21946]="TransferCharacteristics",Wr[Wr.Primaries=21947]="Primaries",Wr[Wr.Range=21945]="Range",Wr[Wr.Projection=30320]="Projection",Wr[Wr.ProjectionType=30321]="ProjectionType",Wr[Wr.ProjectionPoseRoll=30325]="ProjectionPoseRoll",Wr[Wr.Attachments=423732329]="Attachments",Wr[Wr.AttachedFile=24999]="AttachedFile",Wr[Wr.FileDescription=18046]="FileDescription",Wr[Wr.FileName=18030]="FileName",Wr[Wr.FileMediaType=18016]="FileMediaType",Wr[Wr.FileData=18012]="FileData",Wr[Wr.FileUID=18094]="FileUID",Wr[Wr.Chapters=272869232]="Chapters",Wr[Wr.Tags=307544935]="Tags",Wr[Wr.Tag=29555]="Tag",Wr[Wr.Targets=25536]="Targets",Wr[Wr.TargetTypeValue=26826]="TargetTypeValue",Wr[Wr.TargetType=25546]="TargetType",Wr[Wr.TagTrackUID=25541]="TagTrackUID",Wr[Wr.TagEditionUID=25545]="TagEditionUID",Wr[Wr.TagChapterUID=25540]="TagChapterUID",Wr[Wr.TagAttachmentUID=25542]="TagAttachmentUID",Wr[Wr.SimpleTag=26568]="SimpleTag",Wr[Wr.TagName=17827]="TagName",Wr[Wr.TagLanguage=17530]="TagLanguage",Wr[Wr.TagString=17543]="TagString",Wr[Wr.TagBinary=17541]="TagBinary",Wr[Wr.ContentEncodings=28032]="ContentEncodings",Wr[Wr.ContentEncoding=25152]="ContentEncoding",Wr[Wr.ContentEncodingOrder=20529]="ContentEncodingOrder",Wr[Wr.ContentEncodingScope=20530]="ContentEncodingScope",Wr[Wr.ContentCompression=20532]="ContentCompression",Wr[Wr.ContentCompAlgo=16980]="ContentCompAlgo",Wr[Wr.ContentCompSettings=16981]="ContentCompSettings",Wr[Wr.ContentEncryption=20533]="ContentEncryption";const Hr=[qr.EBML,qr.Segment],Vr=[qr.SeekHead,qr.Info,qr.Cluster,qr.Tracks,qr.Cues,qr.Attachments,qr.Chapters,qr.Tags],jr=[...Hr,...Vr],Kr=16,Xr=e=>{if(e.remainingLength<1)return null;const t=ac(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength<i?null:i},$r=e=>{if(e.remainingLength<1)return null;const t=ac(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength<i-1)return null;let a=t&r-1;for(let s=1;s<i;s++)a*=256,a+=ac(e);return a},Gr=(e,t)=>{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r<t;r++)i*=256,i+=ac(e);return i},Qr=e=>{const t=Xr(e);if(null===t)return null;if(e.remainingLength<t)return null;return Gr(e,t)},Yr=e=>{if(e.remainingLength<1)return null;if(255===ac(e))return;e.skip(-1);const t=$r(e);return null===t?null:72057594037927940!==t?t:void 0},Jr=e=>{j(e.remainingLength>=2);const t=Qr(e);if(null===t)return null;const i=Yr(e);return null===i?null:{id:t,size:i}},Zr=(e,t)=>{const i=rc(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return String.fromCharCode(...i.subarray(0,r))},ea=(e,t)=>{const i=rc(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return Z.decode(i.subarray(0,r))},ta=(e,t)=>{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?kc(e):yc(e)},ia=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;null===r||s<r;){let t=e.requestSliceRange(s,2,Kr);if(Xe(t)&&(t=await t),!t)break;const i=Jr(t);if(!i)break;if(a.has(i.id))return{pos:s,found:!0};ya(i.size),s=t.filePos+i.size}return{pos:null!==r&&r>s?r:s,found:!1}},ra=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;s<r;){let t=e.requestSliceRange(s,0,Math.min(65536,r-s));if(Xe(t)&&(t=await t),!t)break;if(t.length<8)break;for(let e=0;e<t.length-8;e++){t.filePos=s;const e=Qr(t);if(null!==e&&a.has(e))return s;s++}}return null},aa="V_MPEG4/ISO/AVC",sa="V_MPEGH/ISO/HEVC",na="V_VP8",oa="V_VP9",ca="V_AV1",la="V_PRORES",ua="A_AAC",ha="A_MPEG/L3",da="A_OPUS",fa="A_VORBIS",ma="A_FLAC",pa="A_AC3",ga="A_EAC3",ka="A_DTS";function ya(e){if(void 0===e)throw new Error("Undefined element size is used in a place where it is not supported.")}var ba,wa,Ta,Sa,va,Pa;(wa=ba||(ba={}))[wa.None=0]="None",wa[wa.Xiph=1]="Xiph",wa[wa.FixedSize=2]="FixedSize",wa[wa.Ebml=3]="Ebml",(Sa=Ta||(Ta={}))[Sa.Block=1]="Block",Sa[Sa.Private=2]="Private",Sa[Sa.Next=4]="Next",(Pa=va||(va={}))[Pa.Zlib=0]="Zlib",Pa[Pa.Bzlib=1]="Bzlib",Pa[Pa.lzo1x=2]="lzo1x",Pa[Pa.HeaderStripping=3]="HeaderStripping";const Ia=[{id:qr.SeekHead,flag:"seekHeadSeen"},{id:qr.Info,flag:"infoSeen"},{id:qr.Tracks,flag:"tracksSeen"},{id:qr.Cues,flag:"cuesSeen"}],xa=10485760;class Ca extends ir{constructor(e){super(e),this.readMetadataPromise=null,this.segments=[],this.currentSegment=null,this.currentTrack=null,this.currentCluster=null,this.currentBlock=null,this.currentBlockAdditional=null,this.currentCueTime=null,this.currentDecodingInstruction=null,this.currentTagTargetIsMovie=!0,this.currentSimpleTagName=null,this.currentAttachedFile=null,this.isWebM=!1,this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.segments.flatMap(e=>e.tracks.map(e=>e.trackBacking))}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>"video"===e.info?.type)),hasAudio:this.segments.some(e=>e.tracks.some(e=>"audio"===e.info?.type)),codecStrings:t.filter(Boolean)})}async getMetadataTags(){await this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&await this.loadSegmentMetadata(t),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e={...e,...t.metadataTags};return e}readMetadata(){return this.readMetadataPromise??(this.readMetadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,Kr);if(Xe(t)&&(t=await t),!t)break;const i=Jr(t);if(!i)break;const r=i.id;let a=i.size;const s=t.filePos;if(r===qr.EBML){ya(a);let e=this.reader.requestSlice(s,a);if(Xe(e)&&(e=await e),!e)break;this.readContiguousElements(e)}else if(r===qr.Segment){if(await this.readSegment(s,a),void 0===a)break;if(null===this.reader.fileSize)break}else if(r===qr.Cluster){if(null===this.reader.fileSize)break;if(void 0===a){a=(await ia(this.reader,s,jr,this.reader.fileSize)).pos-s}const e=X(this.segments);e&&(e.elementEndPos=s+a)}ya(a),e=s+a}})())}async readSegment(e,t){this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let i=e;for(;null===this.currentSegment.elementEndPos||i<this.currentSegment.elementEndPos;){let e=this.reader.requestSliceRange(i,2,Kr);if(Xe(e)&&(e=await e),!e)break;const t=i,r=Jr(e);if(!r||!Vr.includes(r.id)&&r.id!==qr.Void){const e=await ra(this.reader,t,Vr,Math.min(this.currentSegment.elementEndPos??1/0,t+xa));if(e){i=e;continue}break}const{id:a,size:s}=r,n=e.filePos,o=Ia.findIndex(e=>e.id===a);if(-1!==o){const e=Ia[o].flag;this.currentSegment[e]=!0,ya(s);let t=this.reader.requestSlice(n,s);Xe(t)&&(t=await t),t&&this.readContiguousElements(t)}else if(a===qr.Tags||a===qr.Attachments){a===qr.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,ya(s);let e=this.reader.requestSlice(n,s);Xe(e)&&(e=await e),e&&this.readContiguousElements(e)}else if(a===qr.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===s)break;i=n+s}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const n of this.currentSegment.seekEntries){const t=Ia.find(e=>e.id===n.id);if(!t)continue;if(this.currentSegment[t.flag])continue;let i=this.reader.requestSliceRange(e+n.segmentPosition,2,Kr);if(Xe(i)&&(i=await i),!i)continue;const r=Jr(i);if(!r)continue;const{id:a,size:s}=r;if(a!==t.id)continue;ya(s),this.currentSegment[t.flag]=!0;let o=this.reader.requestSlice(i.filePos,s);Xe(o)&&(o=await o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const n of this.currentSegment.tracks)null!==n.defaultDurationNs&&(n.defaultDuration=this.currentSegment.timestampFactor*n.defaultDurationNs/1e9);const r=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const n of this.currentSegment.cuePoints){const e=r.get(n.trackId);e&&e.cuePoints.push(n)}for(const n of this.currentSegment.tracks){n.cuePoints.sort((e,t)=>e.time-t.time);for(let e=0;e<n.cuePoints.length-1;e++){const t=n.cuePoints[e],i=n.cuePoints[e+1];t.time===i.time&&(n.cuePoints.splice(e+1,1),e--)}}let a=null,s=-1/0;for(const n of this.currentSegment.tracks)n.cuePoints.length>s&&(s=n.cuePoints.length,a=n);for(const n of this.currentSegment.tracks)0===n.cuePoints.length&&(n.cuePoints=a.cuePoints);this.currentSegment=null}async readCluster(e,t){if(t.lastReadCluster?.elementStartPos===e)return t.lastReadCluster;let i=this.reader.requestSliceRange(e,2,Kr);Xe(i)&&(i=await i),j(i);const r=e,a=Jr(i);j(a);j(a.id===qr.Cluster);let s=a.size;const n=i.filePos;if(void 0===s){s=(await ia(this.reader,n,jr,t.elementEndPos)).pos-n}let o=this.reader.requestSlice(n,s);Xe(o)&&(o=await o);const c={segment:t,elementStartPos:r,elementEndPos:n+s,dataStartPos:n,timestamp:-1,trackData:new Map};if(this.currentCluster=c,o){const e=this.readContiguousElements(o,jr);c.elementEndPos=e}for(const[,l]of c.trackData){const e=l.track;j(l.blocks.length>0);let t=!1;for(let r=0;r<l.blocks.length;r++){const e=l.blocks[r];e.timestamp+=c.timestamp,t||(t=e.lacing!==ba.None)}l.presentationTimestamps=l.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let r=0;r<l.presentationTimestamps.length;r++){const t=l.presentationTimestamps[r],i=l.blocks[t.blockIndex];if(null===l.firstKeyFrameTimestamp&&i.isKeyFrame&&(l.firstKeyFrameTimestamp=i.timestamp),r<l.presentationTimestamps.length-1){const e=l.presentationTimestamps[r+1];i.duration=e.timestamp-i.timestamp}else 0===i.duration&&null!=e.defaultDuration&&i.lacing===ba.None&&(i.duration=e.defaultDuration)}t&&(this.expandLacedBlocks(l.blocks,e),l.presentationTimestamps=l.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const i=l.blocks[l.presentationTimestamps[0].blockIndex],a=l.blocks[X(l.presentationTimestamps).blockIndex];l.startTimestamp=i.timestamp,l.endTimestamp=a.timestamp+a.duration;const s=pe(e.clusterPositionCache,l.startTimestamp,e=>e.startTimestamp);-1!==s&&e.clusterPositionCache[s].elementStartPos===r||e.clusterPositionCache.splice(s+1,0,{elementStartPos:c.elementStartPos,startTimestamp:l.startTimestamp})}return t.lastReadCluster=c,c}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){for(let i=0;i<e.length;i++){const r=e[i];if(r.lacing===ba.None)continue;r.decoded||(r.data=this.decodeBlockData(t,r.data),r.decoded=!0);const a=tc.tempFromBytes(r.data),s=[],n=ac(a)+1;switch(r.lacing){case ba.Xiph:{let e=0;for(let t=0;t<n-1;t++){let t=0;for(;a.bufferPos<a.length;){const i=ac(a);if(t+=i,i<255){s.push(t),e+=t;break}}}s.push(a.length-(a.bufferPos+e))}break;case ba.FixedSize:{const e=a.length-1,t=Math.floor(e/n);for(let i=0;i<n;i++)s.push(t)}break;case ba.Ebml:{const e=$r(a);j(null!==e);let t=e;s.push(t);let i=t;for(let r=1;r<n-1;r++){const e=a.bufferPos,r=$r(a);j(null!==r);t+=r-((1<<7*(a.bufferPos-e)-1)-1),s.push(t),i+=t}s.push(a.length-(a.bufferPos+i))}break;default:j(!1)}j(s.length===n),e.splice(i,1);const o=r.duration||n*(t.defaultDuration??0);for(let t=0;t<n;t++){const c=s[t],l=rc(a,c),u=r.timestamp+o*t/n,h=o/n;e.splice(i+t,0,{timestamp:u,duration:h,isKeyFrame:r.isKeyFrame,data:l,lacing:ba.None,decoded:!0,postProcessed:!1,mainAdditional:r.mainAdditional})}i+=n,i--}}async loadSegmentMetadata(e){for(const t of e.seekEntries){if(t.id!==qr.Tags||e.tagsSeen){if(t.id!==qr.Attachments||e.attachmentsSeen)continue}else;let i=this.reader.requestSliceRange(e.dataStartPos+t.segmentPosition,2,Kr);if(Xe(i)&&(i=await i),!i)continue;const r=Jr(i);if(!r||r.id!==t.id)continue;const{size:a}=r;ya(a),j(!this.currentSegment),this.currentSegment=e;let s=this.reader.requestSlice(i.filePos,a);Xe(s)&&(s=await s),s&&this.readContiguousElements(s),this.currentSegment=null,t.id===qr.Tags?e.tagsSeen=!0:t.id===qr.Attachments&&(e.attachmentsSeen=!0)}}readContiguousElements(e,t){for(;e.remainingLength>=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){const i=Jr(e);if(!i)return!1;if(t&&t.includes(i.id))return!1;const{id:r,size:a}=i,s=e.filePos;switch(ya(a),r){case qr.DocType:this.isWebM="webm"===Zr(e,a);break;case qr.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(s,a)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case qr.SeekID:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=Gr(e,a)}break;case qr.SeekPosition:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=Gr(e,a)}break;case qr.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=Gr(e,a),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case qr.Duration:if(!this.currentSegment)break;this.currentSegment.duration=ta(e,a);break;case qr.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:{...ht,primary:!1},trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(s,a)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>"decompress"!==e.data?.type||e.scope!==Ta.Block||e.data.algorithm!==va.HeaderStripping)&&(ct._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===aa)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===sa)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===na)this.currentTrack.info.codec="vp8";else if(t===oa)this.currentTrack.info.codec="vp9";else if(t===ca)this.currentTrack.info.codec="av1";else if(t===la){const e=this.currentTrack.codecPrivate?Z.decode(this.currentTrack.codecPrivate):"";Oi.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new Ea(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===ua?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===ha?this.currentTrack.info.codec="mp3":t===da?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=Wi):t===fa?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===ma?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===pa?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===ga?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===ka?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new _a(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case qr.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=Gr(e,a);break;case qr.TrackType:{if(!this.currentTrack)break;const t=Gr(e,a);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:{...ce},alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case qr.FlagEnabled:if(!this.currentTrack)break;Gr(e,a)||(this.currentTrack=null);break;case qr.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!Gr(e,a);break;case qr.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!Gr(e,a);break;case qr.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!Gr(e,a);break;case qr.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!Gr(e,a);break;case qr.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!Gr(e,a);break;case qr.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!Gr(e,a);break;case qr.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=Zr(e,a);break;case qr.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=rc(e,a);break;case qr.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=Gr(e,a);break;case qr.Name:if(!this.currentTrack)break;this.currentTrack.name=ea(e,a);break;case qr.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=Zr(e,a),Ae(this.currentTrack.languageCode)||(this.currentTrack.languageCode=xe);break;case qr.LanguageBCP47:{if(!this.currentTrack)break;const t=Zr(e,a).split("-")[0];this.currentTrack.languageCode=t||xe,this.currentTrack.hasLanguageBcp47=!0}break;case qr.Video:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.PixelWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.width=Gr(e,a);break;case qr.PixelHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.height=Gr(e,a);break;case qr.DisplayWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayWidth=Gr(e,a);break;case qr.DisplayHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayHeight=Gr(e,a);break;case qr.DisplayUnit:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayUnit=Gr(e,a);break;case qr.AlphaMode:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.alphaMode=1===Gr(e,a);break;case qr.Colour:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.MatrixCoefficients:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a),i=ne[t];this.currentTrack.info.colorSpace.matrix=i}break;case qr.Range:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case qr.TransferCharacteristics:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a),i=ae[t];this.currentTrack.info.colorSpace.transfer=i}break;case qr.Primaries:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a),i=ie[t];this.currentTrack.info.colorSpace.primaries=i}break;case qr.Projection:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.ProjectionPoseRoll:{if("video"!==this.currentTrack?.info?.type)break;const t=-ta(e,a);try{this.currentTrack.info.rotation=K(t)}catch{}}break;case qr.Audio:if("audio"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.SamplingFrequency:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.sampleRate=ta(e,a);break;case qr.Channels:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.numberOfChannels=Gr(e,a);break;case qr.BitDepth:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.bitDepth=Gr(e,a);break;case qr.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(s,a)),this.currentCueTime=null;break;case qr.CueTime:this.currentCueTime=Gr(e,a);break;case qr.CueTrackPositions:{if(null===this.currentCueTime)break;j(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(s,a)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case qr.CueTrack:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=Gr(e,a)}break;case qr.CueClusterPosition:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;j(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+Gr(e,a)}break;case qr.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=Gr(e,a);break;case qr.SimpleBlock:{if(!this.currentCluster)break;const t=$r(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=cc(e),n=ac(e),o=n>>1&3;let c=!!(128&n);"audio"===i.track.info?.type&&i.track.info.codec&&(c=!0);const l=rc(e,a-(e.filePos-s)),u=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:c,data:l,lacing:o,decoded:!u,postProcessed:!1,mainAdditional:null})}break;case qr.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(s,a)),this.currentBlock=null;break;case qr.Block:{if(!this.currentCluster)break;const t=$r(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=cc(e),n=ac(e)>>1&3,o=rc(e,a-(e.filePos-s)),c=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:o,lacing:n,decoded:!c,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case qr.BlockAdditions:this.readContiguousElements(e.slice(s,a));break;case qr.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(s,a)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case qr.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=rc(e,a);break;case qr.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=Gr(e,a);break;case qr.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=Gr(e,a);break;case qr.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case qr.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(s,a));break;case qr.Targets:this.readContiguousElements(e.slice(s,a));break;case qr.TargetTypeValue:50!==Gr(e,a)&&(this.currentTagTargetIsMovie=!1);break;case qr.TagTrackUID:case qr.TagEditionUID:case qr.TagChapterUID:case qr.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case qr.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(s,a));break;case qr.TagName:this.currentSimpleTagName=ea(e,a);break;case qr.TagString:{if(!this.currentSimpleTagName)break;const t=ea(e,a);this.processTagValue(this.currentSimpleTagName,t)}break;case qr.TagBinary:{if(!this.currentSimpleTagName)break;const t=rc(e,a);this.processTagValue(this.currentSimpleTagName,t)}break;case qr.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(s,a));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(t.raw??(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new ut(this.currentAttachedFile.fileData,this.currentAttachedFile.fileMediaType??void 0,this.currentAttachedFile.fileName??void 0,this.currentAttachedFile.fileDescription??void 0)),this.currentAttachedFile.fileMediaType?.startsWith("image/")&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}t.images??(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:this.currentAttachedFile.fileName??void 0,description:this.currentAttachedFile.fileDescription??void 0})}this.currentAttachedFile=null}break;case qr.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=0n;for(let r=0;r<t;r++)i<<=8n,i+=BigInt(ac(e));return i})(e,a);break;case qr.FileName:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=ea(e,a);break;case qr.FileMediaType:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=Zr(e,a);break;case qr.FileData:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=rc(e,a);break;case qr.FileDescription:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=ea(e,a);break;case qr.ContentEncodings:if(!this.currentTrack)break;this.readContiguousElements(e.slice(s,a)),this.currentTrack.decodingInstructions.sort((e,t)=>t.order-e.order);break;case qr.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Ta.Block,data:null},this.readContiguousElements(e.slice(s,a)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case qr.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=Gr(e,a);break;case qr.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=Gr(e,a);break;case qr.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:va.Zlib,settings:null},this.readContiguousElements(e.slice(s,a));break;case qr.ContentCompAlgo:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.algorithm=Gr(e,a);break;case qr.ContentCompSettings:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.settings=rc(e,a);break;case qr.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=s+a,!0}decodeBlockData(e,t){j(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(j(r.data),"decompress"===r.data.type)if(r.data.algorithm===va.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i;if(!this.currentSegment?.metadataTags)return;const r=this.currentSegment.metadataTags;if(r.raw??(r.raw={}),(i=r.raw)[e]??(i[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":r.title??(r.title=t);break;case"description":r.description??(r.description=t);break;case"artist":r.artist??(r.artist=t);break;case"album":r.album??(r.album=t);break;case"album_artist":r.albumArtist??(r.albumArtist=t);break;case"genre":r.genre??(r.genre=t);break;case"comment":r.comment??(r.comment=t);break;case"lyrics":r.lyrics??(r.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||(r.date??(r.date=e))}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.trackNumber??(r.trackNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.tracksTotal??(r.tracksTotal=a))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.discNumber??(r.discNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.discsTotal??(r.discsTotal=a))}}}async getDurationFromMetadata(e){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){j(r.trackBacking);const e=await r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(t??1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=t??0,i}}class Ba{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)}async getLiveRefreshInterval(){return null}async getFirstPacket(e){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)}intoTimescale(e){return Ce(e*this.internalTrack.segment.timestampFactor)}async getPacket(e,t){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=pe(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)}async getNextPacket(e,t){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1<t.blocks.length)return{blockIndex:i.blockIndex+1,correctBlockFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{blockIndex:0,correctBlockFound:!0}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)}async getKeyPacket(e,t){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=we(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)}async getNextKeyPacket(e,t){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return j(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)}async fetchPacketInCluster(e,t,i){if(-1===t)return null;const r=e.trackData.get(this.internalTrack.id).blocks[t];if(j(r),r.decoded||(r.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,r.data),r.decoded=!0),!r.postProcessed){if("prores"===this.internalTrack.info?.codec){if(!(r.data.length>=8&&105===r.data[4]&&99===r.data[5]&&112===r.data[6]&&102===r.data[7])){const e=new Uint8Array(r.data.length+8);J(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(r.data,8),r.data=e}}r.postProcessed=!0}const a=i.metadataOnly?rr:r.data,s=r.timestamp/this.internalTrack.segment.timestampFactor,n=r.duration/this.internalTrack.segment.timestampFactor,o={};r.mainAdditional&&"video"===this.internalTrack.info?.type&&this.internalTrack.info.alphaMode&&(o.alpha=i.metadataOnly?rr:r.mainAdditional,o.alphaByteLength=r.mainAdditional.byteLength);const c=new ar(a,r.isKeyFrame?"key":"delta",s,n,e.dataStartPos+t,r.data.byteLength,o);return this.packetToClusterLocation.set(c,{cluster:e,blockIndex:t}),c}async performClusterLookup(e,t,i,r,a){const{demuxer:s,segment:n}=this.internalTrack;let o=null,c=null,l=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,a);-1!==i&&(c=e,l=i)}const u=pe(this.internalTrack.cuePoints,i,e=>e.time),h=-1!==u?this.internalTrack.cuePoints[u]:null,d=pe(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),f=-1!==d?this.internalTrack.clusterPositionCache[d]:null,m=Math.max(h?.clusterPosition??0,f?.elementStartPos??0)||null;let p;for(e?null===m||e.elementStartPos>=m?(p=e.elementEndPos,o=e):p=m:p=m??n.clusterSeekStartPos;null===n.elementEndPos||p<=n.elementEndPos-2;){if(o){const e=o.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=s.reader.requestSliceRange(p,2,Kr);if(Xe(e)&&(e=await e),!e)break;const i=p,u=Jr(e);if(!u||!Vr.includes(u.id)&&u.id!==qr.Void){const e=await ra(s.reader,i,Vr,Math.min(n.elementEndPos??1/0,i+xa));if(e){p=e;continue}break}const h=u.id;let d=u.size;const f=e.filePos;if(h===qr.Cluster){o=await s.readCluster(i,n),d=o.elementEndPos-f;const{blockIndex:e,correctBlockFound:r}=t(o);if(r)return this.fetchPacketInCluster(o,e,a);-1!==e&&(c=o,l=e)}if(void 0===d){j(h!==qr.Cluster);d=(await ia(s.reader,f,jr,n.elementEndPos)).pos-f}const m=f+d;if(null===n.elementEndPos){let e=s.reader.requestSliceRange(m,2,Kr);if(Xe(e)&&(e=await e),!e)break;if(Qr(e)===qr.Segment){n.elementEndPos=m;break}}p=m}if(h&&(!c||c.elementStartPos<h.clusterPosition)){const e=this.internalTrack.cuePoints[u-1];j(!e||e.time<h.time);const i=e?.time??-1/0;return this.performClusterLookup(null,t,i,r,a)}return c?this.fetchPacketInCluster(c,l,a):null}}class Ea extends Ba{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.info.rotation}async getColorSpace(){const e=await this.getDecoderConfig();return e?{primaries:e.colorSpace?.primaries,transfer:e.colorSpace?.transfer,matrix:e.colorSpace?.matrix,fullRange:e.colorSpace?.fullRange}:this.internalTrack.info.colorSpace}async canBeTransparent(){return this.internalTrack.info.alphaMode||"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{var e,t,i,r;let a=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(a=await this.getFirstPacket({}));const s={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&a?Ft(a.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&a?Wt(a.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&a?ei(a.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&a?ii(a.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&a?ri(a.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!oe(this.internalTrack.info.colorSpace)){const a=Ui(s);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const n={codec:zi(s),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(n.displayAspectWidth=this.internalTrack.info.squarePixelWidth,n.displayAspectHeight=this.internalTrack.info.squarePixelHeight),n})()):null}}class _a extends Ba{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&xi(e.data)}return{codec:qi({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Ra=async(e,t,i,r=null)=>{let a=t;for(;null===i||a<i;){const t=null!==i?Math.min(65536,i-a):65536;let s=e.requestSliceRange(a,4,t);if(Xe(s)&&(s=await s),!s||s.length<4)break;for(;s.remainingLength>=4;){const t=s.filePos,i=uc(s),n=null!==e.fileSize?e.fileSize-a:null,o=Yi(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&tr(o.header.channel)===tr(r.channel)))return{header:o.header,startPos:a};s.filePos=t+o.bytesAdvanced,a=s.filePos}}return null};class Fa extends ir{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new ue,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new Aa(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,xc);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=_c(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=await Ra(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=Qi(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(Xe(r)&&(r=await r),r){const a=uc(r);if(a===$i||a===Gi){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(Xe(t)&&(t=await t),t){const e=rc(t,12),i=J(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&Zi.FrameCount?i.getUint32(4,!1):null,fileSize:r&Zi.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const a=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:a,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame}async getMimeType(){return"audio/mpeg"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=!0;let a=this.reader.requestSlice(i.filePos,r.size);if(Xe(a)&&(a=await a),!a)break;Rc(a,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=Ic){let e=this.reader.requestSlice(this.reader.fileSize-Ic,Ic);Xe(e)&&(e=await e),j(e);"TAG"===bc(e,3)&&Bc(e,this.metadataTags)}return this.metadataTags}finally{e()}}}class Aa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return j(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.demuxer;if(j(null!==e.firstFrameHeader),j(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,a=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(a<<t):2===i?144*r/a:12*r/a*4),n=(e.reader.fileSize-e.firstFrameHeaderPos)/s;return Math.round(n)*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}var t,i,r,a;return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return xe}getCodec(){return"mp3"}getInternalCodecId(){return null}getNumberOfChannels(){return j(this.demuxer.firstFrameHeader),tr(this.demuxer.firstFrameHeader.channel)}getSampleRate(){return j(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}getDisposition(){return{...ht}}async getDecoderConfig(){return j(this.demuxer.firstFrameHeader),{codec:"mp3",numberOfChannels:tr(this.demuxer.firstFrameHeader.channel),sampleRate:this.demuxer.firstFrameHeader.sampleRate}}async getPacketAtIndex(e,t){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=rr;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Xe(e)&&(e=await e),!e)return null;r=rc(e,i.dataSize)}return new ar(r,"key",i.timestamp,i.duration,e,i.dataSize)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=me(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=pe(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);await this.demuxer.advanceReader()}}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Ma=1399285583,Da=new Uint32Array(256);for(let ul=0;ul<256;ul++){let e=ul<<24;for(let t=0;t<8;t++)e=2147483648&e?e<<1^79764919:e<<1;Da[ul]=e>>>0&4294967295}const Na=e=>{const t=J(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let a=0;a<e.length;a++){const t=e[a];r=(r<<8^Da[r>>>24^t])>>>0}return t.setUint32(22,i,!0),r},Oa=(e,t,i)=>{let r=0,a=null;if(e.length>0)if("vorbis"===t.codec){j(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,n=(e[0]&s)>>1;if(n>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let o=i;const c=t.vorbisInfo.modeBlockflags[n];if(a=t.vorbisInfo.blocksizes[c],1===c){const i=1+(1|s),r=e[0]&i?1:0;o=t.vorbisInfo.blocksizes[r]}r=null!==o?o+a>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:ai[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:a}},La=27,za=282,Ua=e=>{const t=e.filePos;if(hc(e)!==Ma)return null;e.skip(1);const i=ac(e),r=gc(e),a=hc(e),s=hc(e),n=hc(e),o=ac(e),c=new Uint8Array(o);for(let h=0;h<o;h++)c[h]=ac(e);const l=27+o,u=c.reduce((e,t)=>e+t,0);return{headerStartPos:t,totalSize:l+u,dataStartPos:t+l,dataSize:u,headerType:i,granulePosition:r,serialNumber:a,sequenceNumber:s,checksum:n,lacingValues:c}},qa=(e,t)=>{for(;e.filePos<t-3;){const t=hc(e),i=79;if((255&t)===i||(t>>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===Ma)return!0;e.skip(1)}}return!1};class Wa extends ir{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,La,za);if(Xe(t)&&(t=await t),!t)break;const i=Ua(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=await this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?await this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&await this.readOpusMetadata(e,t),null!==t.codecInfo.codec&&this.trackBackings.push(new Ha(t,this)))}})())}async readVorbisMetadata(e,t){let i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=await this.findNextPacketStart(r),!i)return;const a=await this.readPacket(i.startPage,i.startSegmentIndex);if(!a)return;if(3!==r.data[0]||5!==a.data[0])return;const s=[],n=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};n(e.data.length),n(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+a.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(a.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=a;const c=J(e.data);t.numberOfChannels=c.getUint8(11),t.sampleRate=c.getUint32(12,!0);const l=c.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&l),1<<(l>>4)],modeBlockflags:si(a.data).modeBlockflags},li(r.data.subarray(7),this.metadataTags)}async readOpusMetadata(e,t){const i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const a=(e=>{const t=J(e),i=t.getUint8(9),r=t.getUint16(10,!0),a=t.getUint32(12,!0),s=t.getInt16(16,!0),n=t.getUint8(18);let o=null;return n&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:a,outputGain:s,channelMappingFamily:n,channelMappingTable:o}})(e.data);t.numberOfChannels=a.outputChannelCount,t.sampleRate=Wi,t.codecInfo.opusInfo={preSkip:a.preSkip},li(r.data.subarray(8),this.metadataTags)}async readPacket(e,t){j(t<e.lacingValues.length);let i=0;for(let u=0;u<t;u++)i+=e.lacingValues[u];let r=e,a=i,s=t;const n=[];e:for(;;){let t=this.reader.requestSlice(r.dataStartPos,r.dataSize);Xe(t)&&(t=await t),j(t);const o=rc(t,r.dataSize);for(;;){if(s===r.lacingValues.length){n.push(o.subarray(i,a));break}const e=r.lacingValues[s];if(a+=e,e<255){n.push(o.subarray(i,a));break e}s++}let c=r.headerStartPos+r.totalSize;for(;;){let t=this.reader.requestSliceRange(c,La,za);if(Xe(t)&&(t=await t),!t)return null;const i=Ua(t);if(!i)return null;if(r=i,r.serialNumber===e.serialNumber)break;c=r.headerStartPos+r.totalSize}i=0,a=0,s=0}const o=n.reduce((e,t)=>e+t.length,0);if(0===o)return null;const c=new Uint8Array(o);let l=0;for(let u=0;u<n.length;u++){const e=n[u];c.set(e,l),l+=e.length}return{data:c,endPage:r,endSegmentIndex:s}}async findNextPacketStart(e){if(e.endSegmentIndex<e.endPage.lacingValues.length-1)return{startPage:e.endPage,startSegmentIndex:e.endSegmentIndex+1};if(!!(4&e.endPage.headerType))return null;let t=e.endPage.headerStartPos+e.endPage.totalSize;for(;;){let i=this.reader.requestSliceRange(t,La,za);if(Xe(i)&&(i=await i),!i)return null;const r=Ua(i);if(!r)return null;if(r.serialNumber===e.endPage.serialNumber)return{startPage:r,startSegmentIndex:0};t=r.headerStartPos+r.totalSize}}async getMimeType(){await this.readMetadata();return(e=>{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(await Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)))).filter(Boolean)})}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}class Ha{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new ue,this.internalSampleRate="opus"===e.codecInfo.codec?Wi:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return j(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}async getDecoderConfig(){return j(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:this.bitstream.description??void 0}}getName(){return null}getLanguageCode(){return xe}getDisposition(){return{...ht,primary:!1}}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(j(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:a}=Oa(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new ar(i.metadataOnly?rr:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:a}),s}async getFirstPacket(e){j(this.bitstream.lastMetadataPacket);const t=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(j(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=await this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)}async getNextPacket(e,t){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=await this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const a=i.timestampInSamples+i.durationInSamples,s=await this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:a,vorbisLastBlocksize:i.vorbisBlockSize},t)}async getPacket(e,t){if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const i=Ce(e*this.internalSampleRate);if(0===i)return this.getFirstPacket(t);if(i<0)return null;j(this.bitstream.lastMetadataPacket);const r=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!r)return null;let a=r.startPage,s=this.demuxer.reader.fileSize;const n=[a];e:for(;a.headerStartPos+a.totalSize<s;){const e=a.headerStartPos,t=Math.floor((e+s)/2);let r=t;for(;;){const e=Math.min(r+65307,s-La);let o=this.demuxer.reader.requestSlice(r,e-r);Xe(o)&&(o=await o),j(o);if(!qa(o,e)){s=t+La;continue e}let c=this.demuxer.reader.requestSliceRange(o.filePos,La,za);Xe(c)&&(c=await c),j(c);const l=Ua(c);j(l);let u=!1;if(l.serialNumber===this.bitstream.serialNumber)u=!0;else{let e=this.demuxer.reader.requestSlice(l.headerStartPos,l.totalSize);Xe(e)&&(e=await e),j(e);const t=rc(e,l.totalSize);u=Na(t)===l.checksum}if(!u){r=l.headerStartPos+4;continue}if(u&&l.serialNumber!==this.bitstream.serialNumber){r=l.headerStartPos+l.totalSize;continue}if(!(-1===l.granulePosition)){this.granulePositionToTimestampInSamples(l.granulePosition)>i?s=l.headerStartPos:(a=l,n.push(l));continue e}r=l.headerStartPos+l.totalSize}}let o=r.startPage;for(const k of n){if(k.granulePosition===a.granulePosition)break;(!o||k.headerStartPos>o.headerStartPos)&&(o=k)}let c=o;const l=[c];for(;c.serialNumber!==this.bitstream.serialNumber||c.granulePosition!==a.granulePosition;){const e=c.headerStartPos+c.totalSize;let t=this.demuxer.reader.requestSliceRange(e,La,za);Xe(t)&&(t=await t),j(t);const i=Ua(t);j(i),c=i,c.serialNumber===this.bitstream.serialNumber&&l.push(c)}j(-1!==c.granulePosition);let u,h,d=null,f=c,m=0;if(c.headerStartPos===r.startPage.headerStartPos)u=this.granulePositionToTimestampInSamples(0),h=!0,d=0;else{u=0,h=!1;for(let t=c.lacingValues.length-1;t>=0;t--){if(c.lacingValues[t]<255){d=t+1;break}}if(null===d)throw new Error("Invalid page with granule position: no packets end on this page.");m=d-1;const e={data:rr,endPage:f,endSegmentIndex:m};if(await this.demuxer.findNextPacketStart(e)){const e=ja(l,c,d);j(e);const t=Va(l,e.page,e.segmentIndex);t&&(c=t.page,d=t.segmentIndex)}else for(;;){const e=ja(l,c,d);if(!e)break;const t=Va(l,e.page,e.segmentIndex);if(!t)break;if(c=t.page,d=t.segmentIndex,e.page.headerStartPos!==f.headerStartPos){f=e.page,m=e.segmentIndex;break}}}let p=null,g=null;for(;null!==c;){j(null!==d);const e=await this.demuxer.readPacket(c,d);if(!e)break;if(!(c.headerStartPos===r.startPage.headerStartPos&&d<r.startSegmentIndex)){let r=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:u,vorbisLastBlocksize:g?.vorbisBlockSize??null},t);j(r);let a=this.encodedPacketToMetadata.get(r);if(j(a),h||e.endPage.headerStartPos!==f.headerStartPos||e.endSegmentIndex!==m?u+=a.durationInSamples:(u=this.granulePositionToTimestampInSamples(c.granulePosition),h=!0,r=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:u-a.durationInSamples,vorbisLastBlocksize:g?.vorbisBlockSize??null},t),j(r),a=this.encodedPacketToMetadata.get(r),j(a)),p=r,g=a,h&&(Math.max(u,0)>i||Math.max(a.timestampInSamples,0)===i))break}const a=await this.demuxer.findNextPacketStart(e);if(!a)break;c=a.startPage,d=a.startSegmentIndex}return p}async getPacketSequential(e,t){const i=await this.sequentialScanMutex.acquire();try{const i=Ce(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=pe(this.sequentialScanCache,i,e=>e.timestampInSamples);let a;if(-1!==r){const e=this.sequentialScanCache[r];a=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else a=await this.getFirstPacket(t);let s=0;for(;a&&a.timestamp<e;){const i=await this.getNextPacket(a,t);if(!i||i.timestamp>e)break;if(a=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(a);j(e),this.sequentialScanCache.length>0&&j(X(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return a}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Va=(e,t,i)=>{let r=t,a=i;e:for(;;){for(a--;a>=0;a--){if(r.lacingValues[a]<255){a++;break e}}j(-1===a);if(!(1&r.headerType)){a=0;break}const t=be(e,e=>e.headerStartPos<r.headerStartPos);if(!t)return null;r=t,a=r.lacingValues.length}if(j(-1!==a),a===r.lacingValues.length){const t=e[e.indexOf(r)+1];j(t),r=t,a=0}return{page:r,segmentIndex:a}},ja=(e,t,i)=>{if(i>0)return{page:t,segmentIndex:i-1};const r=be(e,e=>e.headerStartPos<t.headerStartPos);return r?{page:r,segmentIndex:r.lacingValues.length-1}:null};var Ka,Xa;(Xa=Ka||(Ka={}))[Xa.PCM=1]="PCM",Xa[Xa.IEEE_FLOAT=3]="IEEE_FLOAT",Xa[Xa.ALAW=6]="ALAW",Xa[Xa.MULAW=7]="MULAW",Xa[Xa.EXTENSIBLE=65534]="EXTENSIBLE";class $a extends ir{constructor(e){super(e),this.metadataPromise=null,this.dataStart=-1,this.dataSize=-1,this.audioInfo=null,this.trackBackings=[],this.lastKnownPacketIndex=0,this.metadataTags={},this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=this.reader.requestSlice(0,12);Xe(e)&&(e=await e),j(e);const t=bc(e,4),i="RIFX"!==t,r="RF64"===t,a=lc(e,i);let s=r?this.reader.fileSize:Math.min(a+8,this.reader.fileSize??1/0);if("WAVE"!==bc(e,4))throw new Error("Invalid WAVE file - wrong format");let n=0,o=null,c=e.filePos;for(;null===s||c<s;){let e=this.reader.requestSlice(c,8);if(Xe(e)&&(e=await e),!e)break;const t=bc(e,4),a=lc(e,i),l=e.filePos;if(r&&0===n&&"ds64"!==t)throw new Error('Invalid RF64 file: First chunk must be "ds64".');if("fmt "===t)await this.parseFmtChunk(l,a,i);else if("data"===t){if(o??(o=a),this.dataStart=e.filePos,this.dataSize=Math.min(o,(s??1/0)-this.dataStart),null===this.reader.fileSize)break}else if("ds64"===t){let e=this.reader.requestSlice(l,a);if(Xe(e)&&(e=await e),!e)break;const t=fc(e,i);o=fc(e,i),s=Math.min(t+8,this.reader.fileSize??1/0)}else"LIST"===t?await this.parseListChunk(l,a,i):"ID3 "!==t&&"id3 "!==t||await this.parseId3Chunk(l,a);c=l+a+(1&a),n++}if(!this.audioInfo)throw new Error('Invalid WAVE file - missing "fmt " chunk');if(-1===this.dataStart)throw new Error('Invalid WAVE file - missing "data" chunk');const l=this.audioInfo.blockSizeInBytes;this.dataSize=Math.floor(this.dataSize/l)*l,this.trackBackings.push(new Qa(this))})())}async parseFmtChunk(e,t,i){let r=this.reader.requestSlice(e,t);if(Xe(r)&&(r=await r),!r)return;let a=sc(r,i);const s=sc(r,i),n=lc(r,i);r.skip(4);const o=sc(r,i);let c;if(c=14===t?8:sc(r,i),t>=18&&357!==a){const e=sc(r,i),s=t-18;if(Math.min(s,e)>=22&&a===Ka.EXTENSIBLE){r.skip(6);const e=rc(r,16);a=e[0]|e[1]<<8}}if(a!==Ka.MULAW&&a!==Ka.ALAW||(c=8),a!==Ka.PCM&&a!==Ka.IEEE_FLOAT&&a!==Ka.ALAW&&a!==Ka.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${a}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(a===Ka.PCM&&![8,16,24,32].includes(c))throw new Error(`Unsupported WAVE PCM bit depth (${c}). Only 8, 16, 24, and 32 bits are supported.`);if(a===Ka.IEEE_FLOAT&&![32,64].includes(c))throw new Error(`Unsupported WAVE float bit depth (${c}). Only 32 and 64 bits are supported.`);this.audioInfo={format:a,numberOfChannels:s,sampleRate:n,sampleSizeInBytes:Math.ceil(c/8),blockSizeInBytes:o}}async parseListChunk(e,t,i){var r,a,s,n,o,c,l,u,h,d,f;let m=this.reader.requestSlice(e,t);if(Xe(m)&&(m=await m),!m)return;const p=bc(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=bc(m,4),t=lc(m,i),p=rc(m,t);let k=0;for(let i=0;i<p.length&&0!==p[i];i++)k++;const y=String.fromCharCode(...p.subarray(0,k));switch((r=this.metadataTags).raw??(r.raw={}),this.metadataTags.raw[e]=y,e){case"INAM":case"TITL":(a=this.metadataTags).title??(a.title=y);break;case"TIT3":(s=this.metadataTags).description??(s.description=y);break;case"IART":(n=this.metadataTags).artist??(n.artist=y);break;case"IPRD":(o=this.metadataTags).album??(o.album=y);break;case"IPRT":case"ITRK":case"TRCK":{const e=y.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&((c=this.metadataTags).trackNumber??(c.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((l=this.metadataTags).tracksTotal??(l.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||((u=this.metadataTags).date??(u.date=e))}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&((h=this.metadataTags).date??(h.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":(d=this.metadataTags).genre??(d.genre=y);break;case"ICMT":case"CMNT":case"COMM":(f=this.metadataTags).comment??(f.comment=y)}g+=8+t+(1&t)}}async parseId3Chunk(e,t){let i=this.reader.requestSlice(e,t);if(Xe(i)&&(i=await i),!i)return;const r=_c(i);if(r){const a=t-xc;if(r.size=Math.min(r.size,a),r.size>0){const t=i.slice(e+xc,r.size);Rc(t,r,this.metadataTags)}}}getCodec(){if(j(this.audioInfo),this.audioInfo.format===Ka.MULAW)return"ulaw";if(this.audioInfo.format===Ka.ALAW)return"alaw";if(this.audioInfo.format===Ka.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===Ka.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}j(!1)}async getMimeType(){return"audio/wav"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}const Ga=2048;class Qa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.format}async getDecoderConfig(){const e=this.demuxer.getCodec();return e?(j(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null}getNumberOfChannels(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return j(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return xe}getDisposition(){return{...ht}}async getPacketAtIndex(e,t){j(e>=0),j(this.demuxer.audioInfo);const i=e*Ga*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(Ga*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(Xe(e)&&(e=await e),!e)return null}let a;if(t.metadataOnly)a=rr;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);Xe(e)&&(e=await e),j(e),a=rc(e,r)}const s=e*Ga/this.demuxer.audioInfo.sampleRate,n=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new ar(a,"key",s,n,e,r)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getPacket(e,t){j(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/Ga,(this.demuxer.dataSize-1)/(Ga*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=await this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;j(null===this.demuxer.reader.fileSize);let a=await this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;a;){const e=await this.getNextPacket(a,t);if(!e)break;a=e}return a}getNextPacket(e,t){j(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/Ga);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Ya=e=>{const t=e.filePos,i=rc(e,9),r=new dt(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const a=r.readBits(1),s=r.readBits(2)+1,n=r.readBits(4);if(15===n)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const c=r.readBits(13);r.skipBits(11);const l=r.readBits(2)+1;if(1!==l)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===a?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:n,channelConfiguration:o,frameLength:c,numberOfAacFrames:l,crcCheck:u,startPos:t}},Ja=1024;class Za extends ir{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new ue,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();j(this.firstFrameHeader),this.trackBackings=[new es(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,xc);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=_c(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=Ya(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=ft[t.samplingFrequencyIndex];j(void 0!==i);const r=Ja/i,a={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(a),this.nextTimestampInSamples+=Ja,this.lastLoadedPos=t.startPos+t.frameLength}async getMimeType(){return"audio/aac"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,xc);if(Xe(t)&&(t=await t),!t)break;const i=_c(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(Xe(r)&&(r=await r),!r)break;Rc(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}}}class es{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/Ja}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return xe}getCodec(){return"aac"}getInternalCodecId(){return j(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){j(this.demuxer.firstFrameHeader);const e=mt[this.demuxer.firstFrameHeader.channelConfiguration];return j(void 0!==e),e}getSampleRate(){j(this.demuxer.firstFrameHeader);const e=ft[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return j(void 0!==e),e}getDisposition(){return{...ht}}async getDecoderConfig(){return j(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}}async getPacketAtIndex(e,t){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=rr;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Xe(e)&&(e=await e),!e)return null;r=rc(e,i.dataSize)}return new ar(r,"key",i.timestamp,i.duration,e,i.dataSize)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=me(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=pe(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);await this.demuxer.advanceReader()}}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}class ts extends ir{constructor(e){super(e),this.loadedSamples=[],this.metadataPromise=null,this.trackBacking=null,this.metadataTags={},this.audioInfo=null,this.lastLoadedPos=null,this.blockingBit=null,this.readingMutex=new ue,this.lastSampleLoaded=!1,this.reader=e._reader}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}async getTrackBackings(){return await this.readMetadata(),j(this.trackBacking),[this.trackBacking]}async getMimeType(){return"audio/flac"}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{var e;let t=0;for(;;){let e=this.reader.requestSlice(t,xc);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const i=_c(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);Xe(r)&&(r=await r),j(r),Rc(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||t<this.reader.fileSize;){let i=this.reader.requestSlice(t,4);if(Xe(i)&&(i=await i),t+=4,null===i)throw new Error(`Metadata block at position ${t} is too small! Corrupted file.`);j(i);const r=ac(i),a=oc(i),s=0!==(128&r);switch(127&r){case oi.STREAMINFO:{let e=this.reader.requestSlice(t,a);if(Xe(e)&&(e=await e),j(e),null===e)throw new Error(`StreamInfo block at position ${t} is too small! Corrupted file.`);const i=rc(e,34),r=new dt(i),s=r.readBits(16),n=r.readBits(16),o=r.readBits(24),c=r.readBits(24),l=r.readBits(20),u=r.readBits(3)+1;r.readBits(5);const h=r.readBits(36);r.skipBits(128);const d=new Uint8Array(42);d.set(new Uint8Array([102,76,97,67]),0),d.set(new Uint8Array([128,0,0,34]),4),d.set(i,8),this.audioInfo={numberOfChannels:u,sampleRate:l,totalSamples:h,minimumBlockSize:s,maximumBlockSize:n,minimumFrameSize:o,maximumFrameSize:c,description:d},this.trackBacking=new is(this);break}case oi.VORBIS_COMMENT:{let e=this.reader.requestSlice(t,a);Xe(e)&&(e=await e),j(e),li(rc(e,a),this.metadataTags);break}case oi.PICTURE:{let i=this.reader.requestSlice(t,a);Xe(i)&&(i=await i),j(i);const r=uc(i),s=uc(i),n=Z.decode(rc(i,s)),o=uc(i),c=Z.decode(rc(i,o));i.skip(16);const l=uc(i),u=rc(i,l);(e=this.metadataTags).images??(e.images=[]),this.metadataTags.images.push({data:u,mimeType:n,kind:3===r?"coverFront":4===r?"coverBack":"unknown",description:c});break}}if(t+=a,s){this.lastLoadedPos=t;break}}if(!this.audioInfo)throw new Error("Missing STREAMINFO metadata block! Corrupted FLAC file.")})())}async readNextFlacFrame({startPos:e,isFirstPacket:t}){j(this.audioInfo);const i=this.audioInfo.maximumBlockSize*this.audioInfo.numberOfChannels*4+16+2,r=this.audioInfo.minimumFrameSize||10,a=(this.audioInfo.maximumFrameSize||i)+16,s=await this.reader.requestSliceRange(e,16,a);if(!s)return null;const n=this.readFlacFrameHeader({slice:s,isFirstPacket:t});if(!n)return null;for(s.filePos=e+r;;){if(s.filePos>s.end-6)return{num:n.num,blockSize:n.blockSize,sampleRate:n.sampleRate,size:s.end-e,isLastFrame:!0};if(255===ac(s)){const t=s.filePos;if(ac(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-n.num!==1){s.filePos=t;continue}}else if(r.num-n.num!==n.blockSize){s.filePos=t;continue}return{num:n.num,blockSize:n.blockSize,sampleRate:n.sampleRate,size:i,isLastFrame:!1}}}}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=rc(e,4),a=new dt(r);if(32764!==a.readBits(15))return null;if(null===this.blockingBit){j(t);const e=a.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){j(!t);if(1!==a.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");j(!t);if(0!==a.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*2**e:6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?2**e:null)(a.readBits(4));if(!s)return null;j(this.audioInfo);const n=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(a.readBits(4),this.audioInfo.sampleRate);if(!n)return null;a.readBits(4),a.readBits(3);if(0!==a.readBits(1))return null;const o=(e=>{let t=0;const i=new dt(rc(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],a=t-1,s=new dt(rc(e,a)),n=8-t-1;for(let o=0;o<n;o++)r.unshift(i.readBits(1));for(let o=0;o<a;o++)for(let e=0;e<8;e++){const t=s.readBits(1);e<2||r.unshift(t)}return r.reduce((e,t,i)=>e|t<<i,0)})(e),c=((e,t)=>"uncommon-u16"===t?nc(e)+1:"uncommon-u8"===t?ac(e)+1:"number"===typeof t?t:(Te(t),void j(!1)))(e,s),l=((e,t)=>"uncommon-u16"===t?nc(e):"uncommon-u16-10"===t?10*nc(e):"uncommon-u8"===t?ac(e):"number"===typeof t?t:null)(e,n);if(null===l)return null;if(l!==this.audioInfo.sampleRate)return null;const u=e.filePos-i,h=ac(e);e.skip(-u),e.skip(-1);const d=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(rc(e,u));return h!==d?null:{num:o,blockSize:c,sampleRate:l}}async advanceReader(){await this.readMetadata(),j(null!==this.lastLoadedPos),j(this.audioInfo);const e=this.lastLoadedPos,t=await this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)}}class is{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return xe}getTimeResolution(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return j(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getDisposition(){return{...ht}}async getDecoderConfig(){return j(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}}async getPacket(e,t){if(j(this.demuxer.audioInfo),e<0)return null;const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=pe(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){await this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],a=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(a+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);await this.demuxer.advanceReader()}}finally{i()}}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}async getPacketAtIndex(e,t){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=rr;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(Xe(e)&&(e=await e),!e)return null;r=rc(e,i.byteSize)}j(this.demuxer.audioInfo);const a=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new ar(r,"key",a,s,e,i.byteSize)}async getFirstPacket(e){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)}}const rs=9e4,as=2**33,ss=188,ns="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",os=new Set([133,134,162]),cs=new Set;class ls extends ir{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=this.reader.requestSlice(0,205);Xe(e)&&(e=await e),j(e);const t=rc(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=ss;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,a=!1,s=!1;for(;;){const e=await this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=await this.readSection(i,!0,!s);if(!t)break;const n=3,o=32;let c=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new dt(t.payload),i=e.readAlignedByte();e.skipBits(8*i);c=2===e.readBits(8)}}if(0!==t.pid||a)if(t.pid!==r&&!c||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=hs(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(await this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new gs(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,await r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=Ft(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];j(t);const i=Nt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const a=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;a>0&&s>0&&(a>s?(e.info.squarePixelWidth=Math.round(e.info.width*a/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/a))),e.info.colorSpace={primaries:ie[i.colourPrimaries],transfer:ae[i.transferCharacteristics],matrix:ne[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=Wt(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===St.SPS_NUT).nalUnits[0];j(t);const i=qt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:ie[i.colourPrimaries],transfer:ae[i.transferCharacteristics],matrix:ne[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:zi({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(await r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=tc.tempFromBytes(r.suppliedPacket.data),i=Ya(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=mt[i.channelConfiguration],e.info.sampleRate=ft[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=uc(tc.tempFromBytes(r.suppliedPacket.data)),i=Yi(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=tr(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=hi(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=ui[t.acmod]+t.lfeon,e.info.sampleRate=yt[t.fscod]}else if("eac3"===e.info.codec){const t=mi(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=pi(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=gi(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=Ii(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:qi({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new dt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const a=e.readBits(10),c=e.pos+8*a;let l=!1;for(;e.pos<c;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(5===t&&i>=4){const t=e.readBits(32);l||(l=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=c;8*(r+n)-e.pos>o;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),a=e.pos+8*r;let s=!1,n=!1,o=!1;for(;e.pos<a;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(106===t)s=!0;else if(122===t||204===t)n=!0;else if(123===t)o=!0;else if(5===t&&i>=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let c=null;const u=l&&os.has(t)?130:t;switch(u){case 27:case 36:c={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",c={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:n?c={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?c={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(c={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:cs.has(t)||(ct._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),cs.add(t))}c&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:c,referencePesPackets:[]})}s=!0}else{const e=new dt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+n)-e.pos>o;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");a=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!a)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const n of this.elementaryStreams)n.initialized&&("video"===n.info.type?this.trackBackingEntries.push(new fs(n)):this.trackBackingEntries.push(new ms(n)))})())}async getTrackBackings(){return await this.readMetadata(),this.trackBackingEntries}async getMetadataTags(){return{}}async getMimeType(){await this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(await Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>e?.codec??null))))}async readSection(e,t,i=!1){let r=e,a=e;const s=[];let n,o=0,c=null,l=!0,u=0;for(;;){const e=await this.readPacket(a);if(a+=this.packetStride,!e)break;if(c){if(e.pid!==c.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;c=e}const n=!!(2&e.adaptationFieldControl),h=!!(1&e.adaptationFieldControl);let d=0;if(n&&(d=1+e.body[0],e===c&&d>1&&(u=e.body[1]>>6&1)),h&&(0===d?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(d)),o+=e.body.byteLength-d)),r=a,!t&&o>=64){l=!1;break}if(-1!==me(this.sectionEndPositions,r,e=>e)){l=!1;break}}if(l){const e=pe(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!c)return null;if(1===s.length)n=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);n=new Uint8Array(e);let t=0;for(const i of s)n.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:c.pid,payload:n,randomAccessIndicator:u}}async readPacketHeader(e){let t=this.reader.requestSlice(e,4);if(Xe(t)&&(t=await t),!t)return null;if(71!==ac(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=nc(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:ac(t)>>4&3}}async readPacket(e){let t=this.reader.requestSlice(e,ss);if(Xe(t)&&(t=await t),!t)return null;const i=rc(t,ss);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=as-t?-8589934592:as}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e<t?e+i:e}}const us=(e,t,i)=>{if(t.payload.byteLength<3)return null;const r=new dt(t.payload);if(1!==r.readBits(24))return null;const a=r.readBits(8);if(r.skipBits(16),188===a||190===a||191===a||240===a||241===a||255===a||242===a||248===a)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let n=null;if(2===s||3===s)n=0,r.skipBits(4),n+=r.readBits(3)*(1<<30),r.skipBits(1),n+=32768*r.readBits(15),r.skipBits(1),n+=r.readBits(15),n=e.normalizeTimestamp(n);else if(i)throw new Error(ns);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:n,randomAccessIndicator:t.randomAccessIndicator}},hs=(e,t,i)=>{j(null!==t.endPos);const r=us(e,t,i);if(!r)return null;const a=new dt(t.payload);a.skipBits(32);const s=a.readBits(16);a.skipBits(16);const n=a.readBits(8),o=a.pos+8*n;a.pos=o;const c=o/8;j(Number.isInteger(c));const l=t.payload.subarray(c,s>0?6+s:t.payload.byteLength);return{...r,data:l}};class ds{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,j(r instanceof ds),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return xe}getDisposition(){return{...ht,primary:!1}}getTimeResolution(){return rs}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new ar(i.metadataOnly?rr:e.data,r,e.pts/rs,Math.max(t/rs,0),e.sequenceNumber,e.data.byteLength)}async getFirstPacket(e){const t=this.elementaryStream.firstSection;j(t);const i=hs(this.elementaryStream.demuxer,t,!0);j(i);const r=new gs(this.elementaryStream,i),a=new ks(this,r),s=await a.readNext();if(!s)return null;const n=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(n,a),this.packetSectionStarts.set(n,s.packet.sectionStartPos),n}async getNextPacket(e,t){let i=this.packetBuffers.get(e);if(i){const r=await i.readNext();if(!r)return null;this.packetBuffers.delete(e);const a=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(a,i),this.packetSectionStarts.set(a,r.packet.sectionStartPos),a}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const a=this.elementaryStream.demuxer,s=await a.readSection(r,!0);j(s);const n=hs(a,s,!0);j(n);const o=new gs(this.elementaryStream,n);i=new ks(this,o);const c=e.sequenceNumber;for(;;){const e=await i.readNext();if(!e)return null;if(e.packet.sequenceNumber>c){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}}async getNextKeyPacket(e,t){let i=e;for(;;){if(i=await this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}async doPacketLookup(e,t,i){const r=Ce(e*rs),a=this.elementaryStream.demuxer,{reader:s,seekChunkSize:n}=a,o=this.elementaryStream.pid,c=async(e,t,i)=>{let r=e;for(;r<t;){const e=await a.readPacketHeader(r);if(!e)return null;if(e.pid===o&&1===e.payloadUnitStartIndicator){const e=await a.readSection(r,i);if(!e)return null;const t=us(a,e,!1);if(t&&null!==t.pts)return{pesPacketHeader:t,section:e}}r+=a.packetStride}return null},l=this.elementaryStream.firstSection;j(l);const u=us(a,l,!0);if(j(u),r<u.pts)return null;let h;const d=this.elementaryStream.referencePesPackets,f=pe(d,r,e=>e.pts),m=-1!==f?d[f]:null;if(m&&r-m.pts<45e3)h=m.sectionStartPos;else{let e=0;if(null!==s.fileSize){const t=Math.ceil(s.fileSize/n);if(t>1){let i=0,s=t-1;for(e=i;i<=s;){const t=Math.floor((i+s)/2),o=_e(t*n,a.packetStride)+u.sectionStartPos,l=o+n,h=await c(o,l,!1);h?h.pesPacketHeader.pts<=r?(e=t,i=t+1):s=t-1:s=t-1}}}h=_e(e*n,a.packetStride)+u.sectionStartPos}const p=await c(h,s.fileSize??1/0,!1);let g=p?.pesPacketHeader??null;g||(g=u);const k=this.getReorderSize(),y=async(e,t)=>{const s=await a.readSection(e,!0);j(s);const n=hs(a,s,!0);j(n);const o=new gs(this.elementaryStream,n),c=new ks(this,o);for(;;){if((X(c.presentationOrderPackets)?.pts??-1/0)>=r)break;if(!(await c.readNextPacket()))break}const l=we(c.presentationOrderPackets,t);if(-1===l)return null;const u=c.presentationOrderPackets[l],h=0===l?0:u.pts-c.presentationOrderPackets[l-1].pts;for(;c.decodeOrderPackets[0]!==u;)c.decodeOrderPackets.shift();c.lastDuration=h;const d=await c.readNext();j(d);const f=this.createEncodedPacket(d.packet,d.duration,i);return this.packetBuffers.set(f,c),this.packetSectionStarts.set(f,d.packet.sectionStartPos),f};if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=g.sectionStartPos+a.packetStride;for(;;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===o&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,!1);if(t){const e=us(a,t,!1);if(e&&null!==e.pts){if(e.pts>r)break e;g=e,ps(this.elementaryStream,g);break}}}e+=a.packetStride}}e:for(let e=0;e<k+1;e++){let e=g.sectionStartPos-a.packetStride;for(;e>=a.packetOffset;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===o&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,!1);if(t){const e=us(a,t,!1);if(e&&null!==e.pts){g=e;break}}}e-=a.packetStride}}return y(g.sectionStartPos,e=>e.pts<=r)}{let e=h,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let h=null;const d=e<=u.sectionStartPos;let f,m=null;if(d)f=u,m=l;else{const t=await c(e,s.fileSize??1/0,i);f=t?.pesPacketHeader??null,m=t?.section??null}let p=!1,g=0;e:for(;f&&!(null!==t&&f.sectionStartPos>=t);){if(f.pts<=r){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===f.randomAccessIndicator;else{j(m);const t=hs(a,m,!0);j(t);const i=new gs(this.elementaryStream,t);await i.markNextPacket(),e=1===i.suppliedPacket?.randomAccessIndicator}e&&(h=f)}if(f.pts>r&&(p=!0),p&&(g++,g>k))break;let e=f.sectionStartPos+a.packetStride;for(;;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===o&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,i);if(t){const e=us(a,t,!1);if(e&&null!==e.pts){f=e,m=t,ps(this.elementaryStream,f);break}}}e+=a.packetStride}}if(h){let e=h;if(0===g)e:for(let r=0;r<k;r++){let t=e.sectionStartPos-a.packetStride;for(;t>=a.packetOffset;){const r=await a.readPacketHeader(t);if(!r)break e;if(r.pid===o&&1===r.payloadUnitStartIndicator){const r=await a.readSection(t,i);if(r){const t=us(a,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=a.packetStride}}const t=await y(e.sectionStartPos,e=>e.pts<=r&&1===e.randomAccessIndicator);return j(t),t}if(d)return null;t=e,e=Math.max(_e(e-u.sectionStartPos-n,a.packetStride)+u.sectionStartPos,u.sectionStartPos)}}}}class fs extends ds{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}async getColorSpace(){return this.elementaryStream.info.colorSpace}async canBeTransparent(){return!1}async getDecoderConfig(){return j(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class ms extends ds{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}async getDecoderConfig(){return j(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const ps=(e,t)=>{const i=e.referencePesPackets,r=pe(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const a=i[r];if(t.pts<=a.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-a.sectionStartPos<s)return!1;if(r<i.length-1){const e=i[r+1];if(e.pts<t.pts)return!1;if(e.sectionStartPos-t.sectionStartPos<s)return!1}}return i.splice(r+1,0,t),!0};class gs{constructor(e,t){this.currentPos=0,this.pesPackets=[],this.currentPesPacketIndex=0,this.currentPesPacketPos=0,this.endPos=0,this.lastSuppliedPesPacket=null,this.nextPts=null,this.suppliedPacket=null,this.elementaryStream=e,this.pid=e.pid,this.demuxer=e.demuxer,this.startingPesPacket=t}ensureBuffered(e){const t=this.endPos-this.currentPos;return t>=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return j(e),e}async bufferData(e){const t=this.endPos+e;for(;this.endPos<t;){let e;if(0===this.pesPackets.length)e=this.startingPesPacket;else{let t=X(this.pesPackets).sectionEndPos;for(j(null!==t);;){const i=await this.demuxer.readPacketHeader(t);if(!i)return;if(i.pid===this.pid){const i=await this.demuxer.readSection(t,!0);if(!i)return;const r=hs(this.demuxer,i,!1);if(r){e=r;break}}t+=this.demuxer.packetStride}}this.pesPackets.push(e),this.endPos+=e.data.byteLength}}readBytes(e){const t=this.getCurrentPesPacket(),i=this.currentPos-this.currentPesPacketPos,r=i+e;if(this.currentPos+=e,r<=t.data.byteLength)return t.data.subarray(i,r);const a=new Uint8Array(e);a.set(t.data.subarray(i));let s=t.data.byteLength-i;for(;;){this.advanceCurrentPacket();const t=this.getCurrentPesPacket(),i=e-s;if(i<=t.data.byteLength){a.set(t.data.subarray(0,i),s);break}a.set(t.data,s),s+=t.data.byteLength}return a}readU8(){let e=this.getCurrentPesPacket();const t=this.currentPos-this.currentPesPacketPos;return this.currentPos++,t<e.data.byteLength?e.data[t]:(this.advanceCurrentPacket(),e=this.getCurrentPesPacket(),e.data[0])}seekTo(e){if(e!==this.currentPos){if(e<this.currentPos)for(;e<this.currentPesPacketPos;){this.currentPesPacketIndex--;const e=this.getCurrentPesPacket();this.currentPesPacketPos-=e.data.byteLength}else for(;;){const t=this.getCurrentPesPacket();if(e<this.currentPesPacketPos+t.data.byteLength)break;this.currentPesPacketPos+=t.data.byteLength,this.currentPesPacketIndex++}this.currentPos=e}}skip(e){this.seekTo(this.currentPos+e)}advanceCurrentPacket(){this.currentPesPacketPos+=this.getCurrentPesPacket().data.byteLength,this.currentPesPacketIndex++}async markNextPacket(){j(!this.suppliedPacket);const e=this.elementaryStream;if("video"===e.info.type){const t=e.info.codec,i=1024;if("avc"!==t&&"hevc"!==t)throw new Error("Unhandled.");const r="avc"===t?1:2;let a=null,s=!1,n=0;for(;;){let e=this.ensureBuffered(i);if(Xe(e)&&(e=await e),0===e)break;const o=this.currentPos,c=this.readBytes(e),l=c.byteLength;let u=0;for(;u<l;){const e=c.indexOf(0,u);if(-1===e||e>=l)break;u=e;const i=o+u;if(u+3>=l){this.seekTo(i);break}const h=c[u+1],d=c[u+2],f=c[u+3];let m=0;if(0===h&&0===d&&1===f?m=4:0===h&&1===d&&(m=3),0===m){u++;continue}const p=i;a??(a=p);const g=u+m,k=g+r,y=6;if(k+("avc"===t?y:1)>l){this.seekTo(i);break}const b=c[g];let w,T,S;if("avc"===t)w=Ct(b),T=w===wt.NON_IDR_SLICE||w===wt.SLICE_DPA||w===wt.IDR,S=w===wt.SEI||w===wt.SPS||w===wt.PPS||w===wt.AUD;else{w=Ut(b);if(((1&b)<<5|c[g+1]>>3)>0){u+=m;continue}T=w<=St.RASL_R||w>=St.BLA_W_LP&&w<=21,S=w>=St.VPS_NUT&&w<=37||w===St.PREFIX_SEI_NUT||w>=41&&w<=44||w>=48&&w<=55}let v=!1;if(T){let e;if("avc"===t){const t=c.subarray(k,k+y),i=$(new dt(t));e=!s||i<=n,n=i}else e=c[k]>>7===1;e&&(s?v=!0:s=!0)}else S&&s&&(v=!0);if(v){const e=p-a;return this.seekTo(a),this.supplyPacket(e,0)}u+=m}if(e<i)break}if(null!==a&&this.endPos>a){const e=this.endPos-a;return this.seekTo(a),this.supplyPacket(e,0)}}else{const t=e.info.codec,i=128;for(;;){let r=this.ensureBuffered(i);Xe(r)&&(r=await r);const a=this.currentPos;for(;this.currentPos-a<r;){const i=this.readU8();if("aac"===t){if(255!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(9);if(Xe(r)&&(r=await r),r<9)return;const a=this.readBytes(9),s=Ya(tc.tempFromBytes(a));if(s){this.seekTo(t);let i=this.ensureBuffered(s.frameLength);return Xe(i)&&(i=await i),this.supplyPacket(i,Math.round(9216e4/e.info.sampleRate))}this.seekTo(t+1)}else{if("mp3"!==t){if("ac3"===t){if(11!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(5);if(Xe(r)&&(r=await r),r<5)return;const a=this.readBytes(5);if(11!==a[0]||119!==a[1]){this.seekTo(t+1);continue}const s=a[4]>>6,n=63&a[4];if(3===s||n>37){this.seekTo(t+1);continue}const o=di[3*n+s];j(void 0!==o),this.seekTo(t),r=this.ensureBuffered(o),Xe(r)&&(r=await r);const c=Math.round(13824e4/e.info.sampleRate);return this.supplyPacket(r,c)}if("eac3"===t){if(11!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(5);if(Xe(r)&&(r=await r),r<5)return;const a=this.readBytes(5);if(11!==a[0]||119!==a[1]){this.seekTo(t+1);continue}const s=2*(((7&a[2])<<8|a[3])+1),n=3===a[4]>>6?3:a[4]>>4&3,o=fi[n];this.seekTo(t),r=this.ensureBuffered(s),Xe(r)&&(r=await r);const c=256*o,l=Math.round(c*rs/e.info.sampleRate);return this.supplyPacket(r,l)}if("dts"===t){if(127!==i&&100!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(18);if(Xe(r)&&(r=await r),r<18)return;const a=this.readBytes(18),s=Ci(a);let n=s?null:Bi(a);if(!s&&!n){this.seekTo(t+1);continue}if(n&&!n.asset){this.seekTo(t);const e=Math.min(n.frameSize,4096);let i=this.ensureBuffered(e);Xe(i)&&(i=await i),n=Bi(this.readBytes(i))??n}let o=s?s.frameSize:n.frameSize;if(s){let e=4*Math.ceil(s.frameSize/4);for(;;){this.seekTo(t);const i=e+10;let r=this.ensureBuffered(i);if(Xe(r)&&(r=await r),r<i)break;this.seekTo(t+e);const a=Bi(this.readBytes(10));if(!a)break;e+=a.frameSize,o=e}}const c=s?.sampleCount??n.asset?.sampleCount;if(void 0===c){this.seekTo(t+1);continue}this.seekTo(t),r=this.ensureBuffered(o),Xe(r)&&(r=await r);const l=Math.round(c*rs/e.info.sampleRate);return this.supplyPacket(r,l)}throw new Error("Unhandled.")}{if(255!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(4);if(Xe(r)&&(r=await r),r<4)return;const a=this.readBytes(4),s=J(a).getUint32(0),n=Yi(s,null);if(n.header){this.seekTo(t);let i=this.ensureBuffered(n.header.totalSize);Xe(i)&&(i=await i);const r=n.header.audioSamplesInFrame*rs/e.info.sampleRate;return this.supplyPacket(i,Math.round(r))}this.seekTo(t+1)}}}if(r<i)break}}}supplyPacket(e,t){const i=this.getCurrentPesPacket();let r;if(this.lastSuppliedPesPacket===i)j(null!==this.nextPts),r=this.nextPts;else{if(null===i.pts)throw new Error(ns);r=i.pts,ps(this.elementaryStream,i)}this.lastSuppliedPesPacket=i,this.nextPts=r+t;const a=i.sectionStartPos,s=a+(this.currentPos-this.currentPesPacketPos),n=this.readBytes(e);let o=i.randomAccessIndicator;if(0===o&&!this.elementaryStream.canBeTrustedWithKeyPackets)if("audio"===this.elementaryStream.info.type)o=1;else if(this.elementaryStream.info.decoderConfig){const e="key"===ni(this.elementaryStream.info.codec,this.elementaryStream.info.decoderConfig,n);o=Number(e)}this.suppliedPacket={pts:r,data:n,sequenceNumber:s,sectionStartPos:a,randomAccessIndicator:o},this.pesPackets.splice(0,this.currentPesPacketIndex),this.currentPesPacketIndex=0}}class ks{constructor(e,t){this.decodeOrderPackets=[],this.reorderBuffer=[],this.presentationOrderPackets=[],this.reachedEnd=!1,this.lastDuration=0,this.backing=e,this.context=t,this.reorderSize=e.getReorderSize(),j(this.reorderSize>=0)}async readNext(){if(0===this.decodeOrderPackets.length){if(!(await this.readNextPacket()))return null}await this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(j(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}}async readNextPacket(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||await this.context.markNextPacket(),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)}async ensureCurrentPacketHasNext(){const e=this.decodeOrderPackets[0];for(j(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(await this.readNextPacket()))break}}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;i<this.reorderBuffer.length;i++)this.reorderBuffer[i].pts<this.reorderBuffer[e].pts&&(e=i);const t=this.reorderBuffer[e];this.presentationOrderPackets.push(t),this.reorderBuffer.splice(e,1)}}flushReorderBuffer(){this.reorderBuffer.sort((e,t)=>e.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const ys="application/vnd.apple.mpegurl",bs="#EXT-X-STREAM-INF:",ws="#EXT-X-I-FRAME-STREAM-INF:",Ts="#EXT-X-MEDIA:",Ss="#EXTINF:",vs="#EXT-X-MAP:",Ps="#EXT-X-KEY:",Is="#EXT-X-MEDIA-SEQUENCE:",xs="#EXT-X-BYTERANGE:",Cs="#EXT-X-PROGRAM-DATE-TIME:",Bs="#EXT-X-TARGETDURATION:",Es="#EXT-X-PLAYLIST-TYPE:",_s=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class Rs{constructor(e){this._attributes={};let t="",i="",r=!1,a=!1;for(let s=0;s<e.length;s++){const n=e[s];'"'===n?a=!a:"="!==n||r||a?","!==n||a?r?i+=n:t+=n:(t&&(this._attributes[t.trim().toLowerCase()]=i),t="",i="",r=!1):r=!0}t&&(this._attributes[t.trim().toLowerCase()]=i)}get(e){return this._attributes[e.toLowerCase()]??null}getAsNumber(e){const t=this.get(e);if(null===t)return null;const i=Number(t);return Number.isFinite(i)?i:null}merge(e){Object.assign(this._attributes,e._attributes)}}class Fs{constructor(e,t,i){this.nextInputCacheAge=0,this.inputCache=[],this.trackBackingsPromise=null,this.firstSegment=null,this.firstSegmentFirstTimestamps=new WeakMap,this.firstTimestampCache=new WeakMap,this.input=e,this.path=t,this.trackDeclarations=i}async getDurationFromMetadata(e){const t=await this.getSegmentAt(1/0,{skipLiveWait:e.skipLiveWait});return t?t.timestamp+t.duration:null}async getUnixTimeForTimestamp(e){let t=await this.getSegmentAt(e,{});if(t??(t=await this.getFirstSegment({})),!t||null===t.unixEpochTimestamp)return null;const i=e-t.timestamp;return t.unixEpochTimestamp+i}async getTrackBackings(){return this.trackBackingsPromise??(this.trackBackingsPromise=(async()=>{const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=et(e,e=>"video"===e.getType())+1;e.push(new Ms(this,t,i))}else if("audio"===t.type){const i=et(e,e=>"audio"===e.getType())+1;e.push(new Ds(this,t,i))}}else{if(this.firstSegment=await this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=await t.getTracks();for(const r of i)if("video"===r.type){const t=et(e,e=>"video"===e.getType())+1;e.push(new Ms(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=et(e,e=>"audio"===e.getType())+1;e.push(new Ds(this,{id:e.length+1,type:"audio"},t))}}return e})())}async getFirstTimestampForInput(e){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=await e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i}async getMediaOffset(e,t){const i=e.firstSegment??e;let r;if(this.firstSegmentFirstTimestamps.has(i))r=this.firstSegmentFirstTimestamps.get(i);else{const e=this.getInputForSegment(i);r=await this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(i,r)}if(i===e)return i.timestamp-r;const a=await this.getFirstTimestampForInput(t),s=e.timestamp-i.timestamp,n=a-r-s;return Math.abs(n)<=Math.min(.25,s)?i.timestamp-r:e.timestamp-a}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class As{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{var e;if((e=this.segmentedInput).firstSegment??(e.firstSegment=await this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let t=this.segmentedInput.firstSegment,i=null;for(;t;){const e=this.segmentedInput.getInputForSegment(t);if(i=(await e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number)??null,i)break;t=await this.segmentedInput.getNextSegment(t,{})}if(!i)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=i,this.firstSegment=t})())}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}getHasOnlyKeyPackets(){return this.delegate(()=>this.firstInputTrack._backing.getHasOnlyKeyPackets?.()??null)}getPairingMask(){return 1n}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}async isRelativeToUnixEpoch(){return await this.hydrate(),j(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}async createAdjustedPacket(e,t,i){j(e.sequenceNumber>=0),j(this.segmentedInput.firstSegment);const r=await this.segmentedInput.getMediaOffset(t,i.input),a=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:Ee(e.timestamp+r,await i.getTimeResolution()),sequenceNumber:Math.floor(1e8*a)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s}async getFirstPacket(e){await this.hydrate(),j(this.firstInputTrack),j(this.firstSegment);let t=this.firstInputTrack,i=this.firstSegment;for(;;){if(t){const r=await t._backing.getFirstPacket(e);if(r)return this.createAdjustedPacket(r,i,t)}if(i=await this.segmentedInput.getNextSegment(i,{skipLiveWait:e.skipLiveWait}),!i)break;const r=this.segmentedInput.getInputForSegment(i);t=(await r.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number)??null}return null}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}async _getNextInternal(e,t,i){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const a=i?await r.track._backing.getNextKeyPacket(r.sourcePacket,t):await r.track._backing.getNextPacket(r.sourcePacket,t);if(a)return this.createAdjustedPacket(a,r.segment,r.track);let s=r.segment;for(;;){const e=await this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),a=(await i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!a){s=e;continue}const n=await a._backing.getFirstPacket(t);return n?this.createAdjustedPacket(n,e,a):null}}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}async _getPacketInternal(e,t,i){let r=await this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(await this.hydrate();r;){const a=this.segmentedInput.getInputForSegment(r),s=(await a.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const n=e-await this.segmentedInput.getMediaOffset(r,a),o=i?await s._backing.getKeyPacket(n,t):await s._backing.getPacket(n,t);if(o)return this.createAdjustedPacket(o,r,s);r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null}}class Ms extends As{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}async getColorSpace(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())}async canBeTransparent(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}class Ds extends As{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}Ye();const Ns=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class Os extends st{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}async getSizeOrNull(){if(this._disposed)throw new Zo;return this._sizePromise??(this._sizePromise=(async()=>{let e=this._getFileSize();return void 0!==e||(await this._read(0,1,0,Ns),e=this._getFileSize(),j(void 0!==e)),e})())}async getSize(){if(this._disposed)throw new Zo;const e=await this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new Js(this,e,t)}_dispatchRead(e,t){this.onread?.(e,t),this._emit("read",{start:e,end:t})}ref(){return new Ls(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class Ls{constructor(e){if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),e._refFinalizationRegistry?.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const e=this.source;j(e._refCount>0),e._decrementRefCount(),e._refFinalizationRegistry?.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class zs extends Os{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof Os||e instanceof Ls))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof Os?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return Xe(t)?t.then(i):i(t)}}const Us=(e,t)=>e.path===t.path;class qs extends zs{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof Os?e.ref():e;return this._root=t,this._rootRequest=null,t};Xe(e)?this._rootRequest=e.then(t):(t(e),j(this._root))}if(this._rootRequest)return this._rootRequest.then(a=>a.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const Ws="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class Hs extends Os{constructor(e,t={}){if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!Je(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new Ys({maxCacheSize:t.maxCacheSize??8388608,maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),Ws?.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:Qs.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}async _runWorker(e){j(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!Ue()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),Ws?.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos<e.targetPos&&!e.aborted;)if(t){const{done:i,value:r}=await t.read();if(i)throw this._orchestrator.onWorkerFinished(e),new Error("Blob reader stopped unexpectedly before all requested data was read.");if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+r.length),this._orchestrator.supplyWorkerData(e,r)}else{const t=await this._blob.slice(e.currentPos,e.targetPos).arrayBuffer();if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+t.byteLength),this._orchestrator.supplyWorkerData(e,new Uint8Array(t))}this._orchestrator.signalWorkerStoppedRunning(e),e.aborted&&await(t?.cancel())}_dispose(){this._orchestrator.dispose()}}const Vs=(e,t,i)=>{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch{}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return ct._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(2**(e-2),16)},js=new Set;class Ks extends zs{constructor(e,t={}){if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!Je(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new Ks(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=t.getRetryDelay??Vs,this._requestInit={...t.requestInit};let i=null;if(t.requestInit?.headers){const e={...Ne(t.requestInit.headers)},r=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==r&&(i=e[r],delete e[r],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){i??(i=t);const r=new Request(e);r.headers.delete("Range"),this._url=r}}if(null!==i){const e=$s(i);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new Ys({maxCacheSize:t.maxCacheSize??67108864,maxWorkerCount:t.parallelism??2,runWorker:this._runWorker.bind(this),prefetchProfile:Qs.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const e=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===e?null!==this._length?this._length:null:Ie(e-this._offset,0,this._length??1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const a=this._offset,s=this._sequentialBacking?this._sequentialBacking._read(a+e,a+t):this._orchestrator.read(a+e,a+t,Math.max(a+i,a),a+Math.min(r,this._length??1/0)),n=e=>e?(e.offset-=this._offset,e):null;return Xe(s)?s.then(n):n(s)}async _runWorker(e){for(;;){const i=new AbortController,r=await Oe(this._options.fetchFn??fetch,this._url,De(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:i.signal}),this._getRetryDelay,()=>this._disposed);if(!r.ok)throw new Error(`Error fetching ${String(this._url)}: ${r.status} ${r.statusText}`);r.redirected&&(this.rootPath=r.url);e:if(null===this._orchestrator.fileSize&&(206===r.status||"basic"===r.type&&!r.headers.has("Content-Encoding"))){const t=r.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=r.headers.get("Content-Length");if(i){const t=206===r.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!r.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==r.status){if(this._sequentialBacking)return void r.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||js.has(e.origin)||(ct._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),js.add(e.origin))}return void this._transitionToSequentialMode(r.body)}const a=r.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return i.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let r;try{r=await a.read()}catch(t){if(this._disposed)throw t;const e=this._getRetryDelay(1,t,this._url);if(null!==e){ct._error("Error while reading response stream. Attempting to resume.",t),await at(1e3*e);break}throw t}if(e.aborted)continue;const{done:s,value:n}=r;if(s){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+n.length),this._orchestrator.supplyWorkerData(e,n)}}}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const a=new ReadableStream({pull:async e=>{for(;;){let s;try{s=await t.read()}catch(a){if(this._disposed)throw a;const e=this._getRetryDelay(1,a,this._url);if(null===e)throw a;ct._error("Error while reading response stream. Attempting to resume.",a),await at(1e3*e);const s=await Oe(this._options.fetchFn??fetch,this._url,De(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!s.ok)throw new Error(`Error fetching ${String(this._url)}: ${s.status} ${s.statusText}`);if(!s.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=s.body.getReader(),r=206===s.status?0:i;continue}if(s.done)return void e.close();let n=s.value;if(r>0){const e=Math.min(r,n.length);r-=e,n=n.subarray(e)}if(0!==n.length)return i+=n.length,void e.enqueue(n)}},cancel:()=>t.cancel()}),s=new Gs(a,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const n=new Set;for(const o of this._orchestrator.workers){for(const e of o.pendingSlices)n.add(e);o.aborted=!0,o.pendingSlices.length=0}for(const o of this._orchestrator.queuedReads)for(const e of o.pendingSlices)n.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const o of n){const e=s._read(o.start,o.start+o.bytes.length);Xe(e)?e.then(e=>{e?(j(e.offset===o.start),o.resolve(e.bytes)):o.resolve(null)},e=>o.reject(e)):(j(null===e),o.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const Xs=/^bytes=(\d+)-(\d*)$/,$s=e=>{const t=Xs.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&r<i?null:{offset:i,length:null!==r?r-i+1:null}};class Gs extends Os{constructor(e,t={}){if(!(e instanceof ReadableStream))throw new TypeError("stream must be a ReadableStream.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!Je(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");super(),this._reader=null,this._cache=[],this._pendingSlices=[],this._currentIndex=0,this._targetIndex=0,this._maxRequestedIndex=0,this._endIndex=null,this._pulling=!1,this._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. With ReadableStreamSource, you must access the data more sequentially or increase the size of its cache.",this._stream=e,this._maxCacheSize=t.maxCacheSize??33554432,this._handleUnhandledError=t.handleUnhandledError}_getFileSize(){return this._endIndex}_read(e,t){if(null!==this._endIndex&&t>this._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=pe(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let a=e;const s=new Uint8Array(t-e);if(-1!==i)for(let l=i;l<this._cache.length;l++){const i=this._cache[l];if(i.start>=t)break;const r=Math.max(e,i.start);r>a&&this._throwDueToCacheMiss();const n=Math.min(t,i.end);r<n&&(s.set(i.bytes.subarray(r-i.start,n-i.start),r-e),a=n)}if(a===t)return{bytes:s,view:J(s),offset:e};this._currentIndex>a&&this._throwDueToCacheMiss();const{promise:n,resolve:o,reject:c}=ke();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:c}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),n}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}async _pull(){for(this._reader??(this._reader=this._stream.getReader());this._currentIndex<this._targetIndex&&!this._disposed;){const{done:e,value:t}=await this._reader.read();if(e){for(const e of this._pendingSlices)e.resolve(null);this._pendingSlices.length=0,this._endIndex=this._currentIndex;break}const i=this._currentIndex,r=this._currentIndex+t.byteLength;this._dispatchRead(i,r);for(let a=0;a<this._pendingSlices.length;a++){const e=this._pendingSlices[a],s=Math.max(i,e.start),n=Math.min(r,e.end);s<n&&(e.bytes.set(t.subarray(s-i,n-i),s-e.start),n===e.end&&(e.resolve({bytes:e.bytes,view:J(e.bytes),offset:e.start}),this._pendingSlices.splice(a,1),a--))}for(this._cache.push({start:i,end:r,bytes:t,view:J(t),age:0});this._cache.length>0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1}_dispose(){for(const e of this._pendingSlices)e.reject(new Zo);this._pendingSlices.length=0,this._cache.length=0,this._reader?.cancel()}}const Qs={fileSystem:(e,t)=>{const i=65536;return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=65536;e=Math.max(0,Math.floor((e-r)/r)*r);for(const a of i){const i=8388608,r=Math.max((a.startPos+a.targetPos)/2,a.targetPos-i);if(Ge(e,t,r,a.targetPos)){const e=a.targetPos-a.startPos,r=Math.ceil((e+1)/i)*i,s=2**Math.ceil(Math.log2(e+1)),n=Math.min(s,r);t=Math.max(t,a.startPos+n)}}return{start:e,end:t=Math.max(t,e+524288)}}};class Ys{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){j(!this.disposed);const a=this.options.prefetchProfile(e,t,this.workers),s=Math.max(a.start,i),n=Math.min(a.end,this.fileSize??1/0,r);j(s<=e&&t<=n);let o=null;const c=pe(this.cache,e,e=>e.start),l=-1!==c?this.cache[c]:null;l&&l.start<=e&&t<=l.end&&(l.age=this.nextAge++,o={bytes:l.bytes,view:l.view,offset:l.start});const u=pe(this.cache,s,e=>e.start),h=o?null:new Uint8Array(t-e);let d=0,f=s;const m=[];if(-1!==u){for(let i=u;i<this.cache.length;i++){const r=this.cache[i];if(r.start>=n)break;if(r.end<=s)continue;const a=Math.max(s,r.start),o=Math.min(n,r.end);if(j(a<=o),f<a&&m.push({start:f,end:a}),f=o,h){const i=Math.max(e,r.start),a=Math.min(t,r.end);if(i<a){const t=i-e;h.set(r.bytes.subarray(i-r.start,a-r.start),t),t===d&&(d=a-e)}}r.age=this.nextAge++}f<n&&m.push({start:f,end:n})}else m.push({start:s,end:n});if(h&&d>=h.length&&(o={bytes:h,view:J(h),offset:e}),0===m.length)return j(o),o;const{promise:p,resolve:g,reject:k}=ke(),y=[];for(const w of m){const i=Math.max(e,w.start),r=Math.min(t,w.end);i===w.start&&r===w.end?y.push(w):i<r&&y.push({start:i,end:r})}const b=h&&{start:e,bytes:h,holes:y,resolve:g,reject:k};e:for(const w of m){for(const i of this.workers){if(this.checkHoleAgainstWorker(i,w,b?[b]:[])){this.checkQueuedReadsAgainstWorker(i);continue e}}const e=w.end<n||null!==this.fileSize,t=this.createWorker(w.start,w.end,e);if(t)b&&(t.pendingSlices=[b]),this.runWorker(t);else{let t=pe(this.queuedReads,w.start,e=>e.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&w.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,w.end),i.strictTarget&&(i.strictTarget=e),b&&i.pendingSlices.push(b)):(t++,i={hole:{start:w.start,end:w.end},strictTarget:e,pendingSlices:b?[b]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1<this.queuedReads.length;){const e=this.queuedReads[t+1];if(e.hole.start>i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return o?p.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(j(h),o=p.then(t=>t&&{bytes:t,view:J(t),offset:e})),o}checkHoleAgainstWorker(e,t,i){if(Ge(t.start-2**17,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t<i.length;t++){const r=i[t];e.pendingSlices.includes(r)||e.pendingSlices.push(r)}return e.running||this.runWorker(e),!0}return!1}checkQueuedReadsAgainstWorker(e){let t=!1;for(let i=0;i<this.queuedReads.length;i++){const r=this.queuedReads[i];if(this.checkHoleAgainstWorker(e,r.hole,r.pendingSlices))this.queuedReads.splice(i,1),i--,t=!0;else if(t)break}}createWorker(e,t,i){if(this.workers.length>=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i<this.workers.length;i++){const r=this.workers[i];r.running||0!==r.pendingSlices.length||e&&!(r.age<e.age)||(t=i,e=r)}if(!e)return null;j(null!==t),j(0===e.pendingSlices.length),this.workers.splice(t,1),this.options.onIdleWorkerRemoved?.(e)}const r={startPos:e,currentPos:e,targetPos:t,strictTarget:i,running:!1,aborted:this.disposed,pendingSlices:[],age:this.nextAge++};return this.workers.push(r),r}runWorker(e){j(!e.running),j(e.currentPos<e.targetPos),e.running=!0,e.age=this.nextAge++,this.options.runWorker(e).catch(t=>{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;r<this.queuedReads.length;r++){this.queuedReads[r].age<this.queuedReads[e].age&&(e=r)}const t=this.queuedReads[e],i=this.createWorker(t.hole.start,t.hole.end,t.strictTarget);if(!i)return;this.queuedReads.splice(e,1),i.pendingSlices=t.pendingSlices,this.runWorker(i)}})}supplyWorkerData(e,t){j(!e.aborted);const i=e.currentPos,r=i+t.length;this.insertIntoCache({start:i,end:r,bytes:t,view:J(t),age:this.nextAge++}),e.currentPos+=t.length,e.currentPos>e.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;a<e.pendingSlices.length;a++){const s=e.pendingSlices[a],n=Math.max(i,s.start),o=Math.min(r,s.start+s.bytes.length);n<o&&s.bytes.set(t.subarray(n-i,o-i),n-s.start);for(let e=0;e<s.holes.length;e++){const t=s.holes[e];i<=t.start&&r>t.start&&(t.start=r),t.end<=t.start&&(s.holes.splice(e,1),e--)}0===s.holes.length&&(s.resolve(s.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;a<this.workers.length;a++){const t=this.workers[a];e===t||t.running||Ge(i,r,t.currentPos,t.targetPos)&&(this.workers.splice(a,1),this.options.onIdleWorkerRemoved?.(t),a--)}}supplyFileSize(e){j(null===this.fileSize),this.fileSize=e;for(const t of this.workers){t.targetPos=Math.min(t.targetPos,e),t.strictTarget=!0;for(let i=0;i<t.pendingSlices.length;i++){const r=t.pendingSlices[i];for(const a of r.holes)if(a.end>e){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t<this.queuedReads.length;t++){const i=this.queuedReads[t];if(i.hole.start>=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t<i.pendingSlices.length;t++){const r=i.pendingSlices[t];r.start>=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){const t=this.workers.indexOf(e);j(-1!==t),e.running=!1,this.workers.splice(t,1),this.options.onIdleWorkerRemoved?.(e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const i of e.pendingSlices)i.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=pe(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=J(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i<this.cache.length;i++){const t=this.cache[i];if(e.end<=t.start)break;if(e.end>=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=J(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;i<this.cache.length;i++){const r=this.cache[i];r.age<t.age&&(e=i,t=r)}if(this.currentCacheSize-t.bytes.length<=this.options.maxCacheSize)break;this.cache.splice(e,1),this.currentCacheSize-=t.bytes.length}}dispose(){for(const e of this.workers){for(const t of e.pendingSlices)t.reject(new Zo);e.pendingSlices.length=0,e.aborted=!0,e.running||this.options.onIdleWorkerRemoved?.(e)}for(const e of this.queuedReads)for(const t of e.pendingSlices)t.reject(new Zo);this.workers.length=0,this.cache.length=0,this.queuedReads.length=0,this.disposed=!0}}class Js extends Os{constructor(e,t,i){if(super(),this._ref=null,e._disposed)throw new Error("Cannot create a slice of a disposed source.");this._baseSource=e,this._offset=t,this._length=i??null}_getFileSize(){const e=this._baseSource._getFileSize();return void 0===e?null!==this._length?this._length:void 0:null===e?null!==this._length?this._length:null:Ie(e-this._offset,0,this._length??1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const a=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return Xe(a)?a.then(s):s(a)}_dispose(){this._ref?.free()}ref(){return this._ref??(this._ref=this._baseSource.ref()),super.ref()}}var Zs=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},en=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const tn=/^0[xX][0-9a-fA-F]+$/,rn=/^data:.*;base64,/i;class an extends Fs{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){return this.currentUpdateSegmentsPromise??(this.currentUpdateSegmentsPromise=(async()=>{try{const e=this.getRemainingWaitTimeMs();e>0&&await at(e),this.lastSegmentUpdateTime=performance.now(),await this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}})())}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}async updateSegments(){let e=this.nextLines;if(this.nextLines=null,!e){const t={stack:[],error:void 0,hasError:!1};try{const i=Zs(t,await this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),r=new ec(i.source),a=await r.requestEntireFile();j(a),e=wc(a,a.length,{ignore:_s}),i.source instanceof zs&&(this.rootPath=i.source.rootPath)}catch(y){t.error=y,t.hasError=!0}finally{en(t)}}const t=!1!==this.input._formatOptions.hls?.offsetTimestampsByDateTime;let i=!1,r=0,a=null,s=null,n=null,o=0,c=null,l=null,u=null,h=null,d=null,f=null,m=!1,p=X(this.segments)??null;const g=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},k=e=>{o=e,p&&(j(null!==p.sequenceNumber),p.sequenceNumber<e&&(r=p.timestamp+p.duration,c=p.firstSegment,l=p.initSegment,d=p.lastProgramDateTimeSeconds,a=null!==p.unixEpochTimestamp?p.unixEpochTimestamp+p.duration:null,p=null))};for(let b=0;b<e.length;b++){const y=e[b];if(i){if(!y.startsWith("#")){if(!p){if(null===s)throw new Error("Invalid M3U8 file; a segment must be preceded by an #EXTINF tag.");let e=n;if(e&&"AES-128"===e.method&&!e.iv){const t=new Uint8Array(fr),i=J(t);i.setUint32(8,Math.floor(o/2**32)),i.setUint32(12,o),e={...e,iv:t}}const t=Ze(this.rootPath,y),i={timestamp:r,unixEpochTimestamp:a,firstSegment:c,sequenceNumber:o,location:{path:t,offset:h?.offset??0,length:h?.length??null},duration:s,encryption:e,initSegment:l,lastProgramDateTimeSeconds:d};c??(c=i),r+=s,null!==a&&(a+=s),this.segments.push(i)}s=null,null===h?u=null:h=null,k(o+1)}if(y.startsWith(Ss)){if(p){m=!0;continue}m||(null===d&&o>0&&null!==f&&(r=o*f),m=!0);const e=y.slice(8),t=e.indexOf(","),i=-1===t?e:e.slice(0,t),a=Number(i);if(!Number.isFinite(a)||a<0)throw new Error(`Invalid #EXTINF tag duration '${i}'.`);s=a}else if(y.startsWith(vs)){const e=new Rs(y.slice(11)),t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const i=e.get("byterange");let o=null;if(null!==i&&(o=g(i)),o&&null===o.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!p){const e={path:Ze(this.rootPath,t),offset:o?.offset??0,length:o?.length??null};if("AES-128"===n?.method&&!n.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");l={timestamp:r,unixEpochTimestamp:a,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:n,initSegment:null,lastProgramDateTimeSeconds:d}}s=null,null===h?u=null:h=null}else if(y.startsWith(Ps)){const e=new Rs(y.slice(11)),t=e.get("method");if("NONE"===t)n=null;else if("AES-128"===t){const t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=e.get("iv");if(r){if(!tn.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(fr);for(let t=0;t<fr;t++){const r=-32+t;i[t]=parseInt(e.slice(r,r+2),16)}}const a=e.get("keyformat")??"identity";if("identity"!==a)throw new Error("For AES-128 encryption, only the 'identity' KEYFORMAT is currently supported. If you think other formats should be supported, please raise an issue.");n={method:"AES-128",keyUri:Ze(this.rootPath,t),iv:i,keyFormat:a}}else{if("SAMPLE-AES"!==t&&"SAMPLE-AES-CTR"!==t)throw new Error(`Unsupported encryption method '${t}'. If you think this method should be supported, please raise an issue.`);{const i=e.get("uri");if(!i)throw new Error(`Invalid #EXT-X-KEY: ${t} requires a URI attribute.`);if("identity"===(e.get("keyformat")??"identity"))throw new Error("For SAMPLE-AES and SAMPLE-AES-CTR encryption, the 'identity' KEYFORMAT is not supported. If you think this format should be supported, please raise an issue.");let r=null;if(rn.test(i)){const e=i.indexOf(","),t=Qe(i.slice(e+1));if(t.length>=8&&112===t[4]&&115===t[5]&&115===t[6]&&104===t[7]){const e=J(t).getUint32(0);r=sr(t.subarray(8,Math.min(e,t.length)))}}n={method:t,psshBox:r}}}}else if(y.startsWith(Is)){const e=y.slice(22),t=Number(e);if(!Number.isInteger(t)||t<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${e}'.`);k(t)}else if(y.startsWith(xs)){const e=g(y.slice(17));if(null===e.offset){if(null===u)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");e.offset=u}h=e,u=e.offset+e.length}else if(y.startsWith(Cs)){if(p)continue;const e=y.slice(25),i=Date.parse(e);if(!Number.isFinite(i))continue;const s=i/1e3;if(d===s)continue;if(null===d&&this.segments.length>0){const e=X(this.segments),i=s-(e.timestamp+e.duration);for(const r of this.segments)r.unixEpochTimestamp=r.timestamp+i,t&&(r.timestamp=r.unixEpochTimestamp)}d=s,a=s,t&&(r=s)}else if("#EXT-X-DISCONTINUITY"===y)c=null;else if(y.startsWith(Bs)){const e=y.slice(22),t=Number(e);if(!Number.isFinite(t)||t<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${e}'.`);this.refreshInterval=t,f=t}else{if("#EXT-X-ENDLIST"===y){this.streamHasEnded=!0;break}if(y.startsWith(Es)){"vod"===y.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==y)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");i=!0}}if(!i)throw new Error("Invalid M3U8 file; no #EXTM3U header.")}async getFirstSegment(){return 0===this.segments.length&&await this.runUpdateSegments(),this.segments[0]??null}async getSegmentAt(e,t){0===this.segments.length&&await this.runUpdateSegments();let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=pe(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r<this.segments.length-1||this.streamHasEnded||i)return this.segments[r];const a=this.segments[r];if(e<a.timestamp+a.duration)return a;await this.runUpdateSegments(),t.skipLiveWait&&(i=!0)}}async getNextSegment(e,t){const i=this.segments.indexOf(e);j(-1!==i);const r=i+1;let a=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){if(r<this.segments.length)return this.segments[r];if(this.streamHasEnded||a)return null;await this.runUpdateSegments(),t.skipLiveWait&&(a=!0)}}async getPreviousSegment(e){const t=this.segments.indexOf(e);return j(-1!==t),this.segments[t-1]??null}getInputForSegment(e){const t=e,i=this.inputCache.find(e=>e.segment===t);if(i)return i.age=this.nextInputCacheAge++,i.input;let r=null;(t.initSegment||t.firstSegment)&&(r=this.getInputForSegment(t.initSegment??t.firstSegment));const a={...this.input._formatOptions,isobmff:{...this.input._formatOptions.isobmff,resolveKeyId:this.input._formatOptions.isobmff?.resolveKeyId&&(e=>{if(!t.encryption||"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method||!t.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let i=e.psshBoxes;const{psshBox:r}=t.encryption;return null!==r.keyIds&&!r.keyIds.includes(e.keyId)||i.some(e=>nr(e,r))||(i=[...i,r]),this.input._formatOptions.isobmff.resolveKeyId({...e,psshBoxes:i})})}},s=new Yo({source:new qs(t.location.path,async e=>{j(e.isRoot);const i={...e,isRoot:!1};let r;const a=t.location.offset>0||null!==t.location.length;if(t.encryption&&"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method)if("AES-128"===t.encryption.method){const e=t.encryption;j(e.iv);let s=await this.input._getSourceCached(i);if(a){const e=s.source.slice(t.location.offset,t.location.length??void 0).ref();s.free(),s=e}const n=((e,t,i)=>{let r=!1,a=0;const s=new Sr;return new ReadableStream({pull:async n=>{r||(s.init(await t()),r=!0);let o=e.requestSliceRange(a,0,65552);if(Xe(o)&&(o=await o),!o||0===o.length)throw new Error("Invalid ciphertext.");const c=o.length;if(c%16!==0)throw new Error("Invalid ciphertext.");const l=65552===c?c-16:c,u=rc(o,l),h=new Uint8Array(l);for(let e=0;e<l;e+=16)s.in.set(u.subarray(e,e+16)),s.decrypt(),h.set(s.out,e);if(l<c)n.enqueue(h),a+=l;else{const e=h[l-1];if(0===e||e>16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=h.subarray(0,l-e);n.enqueue(t),n.close(),i()}},cancel:()=>{i()}})})(new ec(s.source),async()=>{const t={stack:[],error:void 0,hasError:!1};try{const i=Zs(t,await this.input._getSourceCached({path:e.keyUri,isRoot:!1},Qo),!1),r=new ec(i.source),a=await r.requestSlice(0,fr);if(!a)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:rc(a,fr),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{en(t)}},()=>{s.free()});r=new Gs(n).ref()}else j(!1);else if(r=await this.input._getSourceCached(i),a){const e=r.source.slice(t.location.offset,t.location.length??void 0).ref();r.free(),r=e}return r}),formats:this.input._formats.filter(e=>!(e instanceof Pn)),initInput:r??void 0,formatOptions:a});s._onFormatDetermined=e=>{if(("SAMPLE-AES"===t.encryption?.method||"SAMPLE-AES-CTR"===t.encryption?.method)&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:t,input:s,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=tt(this.inputCache,e=>e.age);j(-1!==e),this.inputCache.splice(e,1)}return s}async getLiveRefreshInterval(){return 0===this.getRemainingWaitTimeMs()&&await this.runUpdateSegments(),this.streamHasEnded?null:this.refreshInterval}}class sn extends ir{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{j(this.input._rootSource instanceof zs);const e=await this.input._reader.requestEntireFile();j(e);const t=wc(e,e.length,{ignore:_s}),{rootPath:i}=this.input._rootSource,r=[],a=[];for(let u=1;u<t.length;u++){const e=t[u];if(e.startsWith(bs)){const a=u,s=t[++u];if(void 0===s)throw new Error("Incorrect M3U8 file; a line must follow the #EXT-X-STREAM-INF tag.");const n=Ze(i,s),o=new Rs(e.slice(18));if(null===o.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");r.push({fullPath:n,attributes:o,lineNumber:a,hasOnlyKeyPackets:!1})}else if(e.startsWith(ws)){const t=new Rs(e.slice(26)),a=t.get("uri");if(null===a)throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a URI attribute.");if(null===t.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");const s=Ze(i,a);r.push({fullPath:s,attributes:t,lineNumber:u,hasOnlyKeyPackets:!0})}else if(e.startsWith(Ts)){const t=new Rs(e.slice(13));if(null===t.get("type"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a TYPE attribute.");if(null===t.get("group-id"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a GROUP-ID attribute.");let r=null;const s=t.get("uri");null!==s&&(r=Ze(i,s)),a.push({fullPath:r,attributes:t,lineNumber:u})}else if("#EXT-X-I-FRAMES-ONLY"===e);else if(e.startsWith(Ss)){const e=new an(this,i,null,t);return this.segmentedInputs=[e],this.hasMasterPlaylist=!1,void(this.trackBackings=await e.getTrackBackings())}}const s=[...new Set(a.filter(e=>"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],n=[...new Set(a.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=await Promise.all(r.map(async(e,t)=>{const r=[],o=e.attributes.get("codecs");let c;if(o)c=o.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=await t.getTrackBackings(),r=await Promise.all(i.map(async e=>({track:e,codec:await e.getCodec()})));c=await Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const l=e.attributes.get("video"),u=e.attributes.get("audio"),h=c.some(e=>_i.includes(ji(e))),d=c.some(e=>Fi.includes(ji(e)));if(null!==l&&!h){if(!s.includes(l))throw new Error(`Invalid M3U8 file; variant stream references video group "${l}" which is not defined in any #EXT-X-MEDIA tags.`);const e=a.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===l&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=Ze(i,t),a=this.getSegmentedInputForPath(r),s=(await a.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===await s.getCodec())break e;const n=await s.getDecoderConfig().then(e=>e?.codec??null);j(null!==n),c.push(n)}}if(null!==u&&!d){if(!n.includes(u))throw new Error(`Invalid M3U8 file; variant stream references audio group "${u}" which is not defined in any #EXT-X-MEDIA tags.`);const e=a.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===u&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=Ze(i,t),a=this.getSegmentedInputForPath(r),s=(await a.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===await s.getCodec())break e;const n=await s.getDecoderConfig().then(e=>e?.codec??null);j(null!==n),c.push(n)}}c=[...new Set(c)];let f=null,m=null;const p=e.attributes.getAsNumber("bandwidth");j(null!==p);const g=e.attributes.getAsNumber("average-bandwidth"),k=e.attributes.get("name");for(const i of c){const o=ji(i);if(null!==o)if(_i.includes(o)){if(null!==f)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");f=i;const n=e.attributes.get("video");if(null===n){const i=e.attributes.get("resolution");let a=null,s=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(a=Number(e[1]),s=Number(e[2]))}r.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:xe,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:f,pairingMask:1n<<BigInt(t),peakBitrate:p,averageBitrate:g,name:k,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:a,height:s}})}else{if(!s.includes(n))throw new Error(`Invalid M3U8 file; variant stream references video group "${n}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of a){const a=i.attributes.get("group-id"),s=i.attributes.get("type");if(a!==n||"video"!==s.toLowerCase())continue;const o=i.attributes.get("resolution")??e.attributes.get("resolution");let c=null,l=null;if(o){const e=o.match(/^(\d+)x(\d+)$/);e&&(c=Number(e[1]),l=Number(e[2]))}r.push({id:-1,demuxer:this,backingTrack:null,default:ln(i.attributes),autoselect:ln(i.attributes)||un(i.attributes),languageCode:hn(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:i.fullPath??e.fullPath,fullCodecString:f,pairingMask:1n<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:c,height:l}})}}}else if(Fi.includes(o)){if(null!==m)throw new Error("Unsupported M3U8 file; multiple audio codecs found in the CODECS attribute of a variant stream.");m=i;const s=e.attributes.get("audio");if(null===s){const i=e.attributes.get("channels"),a=null!==i?Number(i.split("/")[0]):null;r.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:xe,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:m,pairingMask:1n<<BigInt(t),peakBitrate:p,averageBitrate:g,name:k,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==a&&Number.isInteger(a)&&a>0?a:null}})}else{if(!n.includes(s))throw new Error(`Invalid M3U8 file; variant stream references audio group "${s}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of a){const a=i.attributes.get("group-id"),n=i.attributes.get("type");if(a!==s||"audio"!==n.toLowerCase())continue;const o=i.attributes.get("channels")??e.attributes.get("channels"),c=null!==o?Number(o.split("/")[0]):null;r.push({id:-1,demuxer:this,backingTrack:null,default:ln(i.attributes),autoselect:ln(i.attributes)||un(i.attributes),languageCode:hn(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:i.fullPath??e.fullPath,fullCodecString:m,pairingMask:1n<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==c&&Number.isInteger(c)&&c>0?c:null}})}}}}return r})),c=[],l=e=>{const t=c.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);t?(t.pairingMask|=e.pairingMask,t.default||(t.default=e.default),t.autoselect||(t.autoselect=e.autoselect),t.lineNumber=Math.min(t.lineNumber,e.lineNumber),null!==e.peakBitrate&&(t.peakBitrate=Math.max(t.peakBitrate??-1/0,e.peakBitrate)),null!==e.averageBitrate&&(t.averageBitrate=Math.max(t.averageBitrate??-1/0,e.averageBitrate)),t.languageCode===xe&&(t.languageCode=e.languageCode)):(e.id=c.length+1,c.push(e))};for(const u of o)for(const e of u)l(e);c.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const u of c)"video"===u.info.type?this.trackBackings.push(new on(u)):this.trackBackings.push(new cn(u));this.internalTracks=c})())}async getTrackBackings(){return await this.readMetadata(),j(this.trackBackings),this.trackBackings}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new an(this,e,i,null),this.segmentedInputs.push(t),t}async getMetadataTags(){return{}}async getMimeType(){return ys}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class nn{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(await e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof on){for(const r of i)if(await r.getCodec()===this.getCodec()){t=r;break}}else{j(this instanceof cn);for(const e of i)if(await e.getCodec()===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t})())}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return{...ht,default:this.internalTrack.autoselect,primary:this.internalTrack.default}}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){j(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}async getDurationFromMetadata(e){return await this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)}async getLiveRefreshInterval(){return await this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}async getFirstPacket(e){return await this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)}async getPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)}async getKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)}async getNextPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)}async getNextKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)}}class on extends nn{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return ji(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}async getColorSpace(){return await this.hydrate(),this.backingVideoTrack.getColorSpace()}async canBeTransparent(){return await this.hydrate(),this.backingVideoTrack.canBeTransparent()}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingVideoTrack.getDecoderConfig()}}class cn extends nn{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return ji(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingAudioTrack.getDecoderConfig()}}const ln=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},un=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},hn=e=>{if(null===e)return xe;const t=e.split("-")[0];return t||xe};class dn{constructor(){this._isIsobmff=!1}}class fn extends dn{constructor(){super(...arguments),this._isIsobmff=!0}async _getMajorBrand(e){let t=e._reader.requestSlice(0,12);if(Xe(t)&&(t=await t),!t)return null;t.skip(4);const i=bc(t,4);return"ftyp"!==i&&"styp"!==i?null:bc(t,4)}_createDemuxer(e){return new vr(e)}}class mn extends fn{async _canReadInput(e){const t=await this._getMajorBrand(e);if(null!==t)return"qt  "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(Xe(t)&&(t=await t),!t)return!1;let r=uc(t),a=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(Xe(t)&&(t=await t),!t)return!1;r=mc(t),a=16}if(r<a)return!1;const s=bc(t,4);if("moof"===s||"sidx"===s)return!0;if("emsg"!==s&&"prft"!==s&&"free"!==s)return!1;i+=r}return!1}get name(){return"MP4"}get mimeType(){return"video/mp4"}}class pn extends fn{async _canReadInput(e){return"qt  "===await this._getMajorBrand(e)}get name(){return"QuickTime File Format"}get mimeType(){return"video/quicktime"}}class gn extends dn{async isSupportedEBMLOfDocType(e,t){let i=e._reader.requestSlice(0,Kr);if(Xe(i)&&(i=await i),!i)return!1;const r=Xr(i);if(null===r)return!1;if(r<1||r>8)return!1;if(Gr(i,r)!==qr.EBML)return!1;const a=Yr(i);if("number"!==typeof a)return!1;let s=e._reader.requestSlice(i.filePos,a);if(Xe(s)&&(s=await s),!s)return!1;const n=i.filePos;for(;s.filePos<=n+a-2;){const e=Jr(s);if(!e)break;const{id:i,size:r}=e,a=s.filePos;if(void 0===r)return!1;switch(i){case qr.EBMLVersion:if(1!==Gr(s,r))return!1;break;case qr.EBMLReadVersion:if(1!==Gr(s,r))return!1;break;case qr.DocType:if(Zr(s,r)!==t)return!1;break;case qr.DocTypeVersion:if(Gr(s,r)>4)return!1}s.filePos=a+r}return!0}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new Ca(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class kn extends gn{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class yn extends dn{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=i.filePos+r.size}const i=await Ra(e._reader,t,t+4096);if(!i)return!1;const r=i.header,a=Qi(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+a,4);if(Xe(s)&&(s=await s),!s)return!1;const n=uc(s);if(n===$i||n===Gi)return!0;t=i.startPos+i.header.totalSize;const o=await Ra(e._reader,t,t+4);if(!o)return!1;const c=o.header;return r.channel===c.channel&&r.sampleRate===c.sampleRate}_createDemuxer(e){return new Fa(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class bn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,12);if(Xe(t)&&(t=await t),!t)return!1;const i=bc(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===bc(t,4)}_createDemuxer(e){return new $a(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class wn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,4);return Xe(t)&&(t=await t),!!t&&"OggS"===bc(t,4)}_createDemuxer(e){return new Wa(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class Tn extends dn{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return Xe(i)&&(i=await i),!!i&&"fLaC"===bc(i,4)}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new ts(e)}}class Sn extends dn{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(Xe(i)&&(i=await i),!i)return!1;const r=Ya(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),Xe(i)&&(i=await i),!i)return!1;const a=Ya(i);return!!a&&(r.objectType===a.objectType&&r.samplingFrequencyIndex===a.samplingFrequencyIndex&&r.channelConfiguration===a.channelConfiguration)}_createDemuxer(e){return new Za(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class vn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,205);if(Xe(t)&&(t=await t),!t)return!1;const i=rc(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])}_createDemuxer(e){return new ls(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class Pn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,7);if(Xe(t)&&(t=await t),!t)return!1;if(!("#EXTM3U"===bc(t,7)))return!1;if(!(e._rootSource instanceof zs))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0}_createDemuxer(e){return new sn(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return ys}}const In=new mn,xn=new pn,Cn=new gn,Bn=new kn,En=new yn,_n=new bn,Rn=new wn,Fn=new Sn,An=new Tn,Mn=new vn,Dn=new Pn,Nn=[Dn,In,xn,Cn,Bn,_n,Rn,An,En,Fn,Mn],On=[Dn,In,xn,En,Fn,Mn];var Ln=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});Ye();let zn=-1/0,Un=-1/0,qn=null;"undefined"!==typeof FinalizationRegistry&&(qn=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-zn>=1e3&&(ct._error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),zn=t),"undefined"!==typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(t-Un>=1e3&&(ct._error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),Un=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class Wn{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const Hn=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],Vn=new Set(Hn);class jn{get codedWidth(){return this.visibleRect.width}get codedHeight(){return this.visibleRect.height}get displayWidth(){return this.rotation%180===0?this.squarePixelWidth:this.squarePixelHeight}get displayHeight(){return this.rotation%180===0?this.squarePixelHeight:this.squarePixelWidth}get microsecondTimestamp(){return Math.trunc(Me*this.timestamp)}get microsecondDuration(){return Math.trunc(Me*this.duration)}get hasAlpha(){return this.format&&this.format.includes("A")}constructor(e,t){if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!Vn.has(t.format))throw new TypeError("init.format must be one of: "+Hn.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&rt(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0;const i=t.layout??to(t.format,t.codedWidth,t.codedHeight);let r=t.colorSpace??null;null===r&&(r="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:t.visibleRect?.left??0,top:t.visibleRect?.top??0,width:t.visibleRect?.width??t.codedWidth,height:t.visibleRect?.height??t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?Y(e):Y(e).slice(),this._layout=i,this.colorSpace=new Qn(r)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==t?.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==t?.timestamp&&!Number.isFinite(t?.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==t?.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==t?.visibleRect&&rt(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:e.visibleRect?.x??0,top:e.visibleRect?.y??0,width:e.visibleRect?.width??e.codedWidth,height:e.visibleRect?.height??e.codedHeight},this.rotation=t?.rotation??0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=t?.timestamp??e.timestamp/1e6,this.duration=t?.duration??(e.duration??0)/1e6,this.colorSpace=new Qn(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&rt(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new jn(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*Me),duration:Math.trunc((t.duration??0)*Me)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const a=t.visibleRect??{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(a.width,a.height),n=s.getContext("2d",{alpha:We(),willReadFrequently:!0});if(!n)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");n.drawImage(e,-a.left,-a.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:a.width,height:a.height},this.squarePixelWidth=a.width,this.squarePixelHeight=a.height,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=new Qn({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof Wn))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!Hn.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=e.getColorSpace()}this.encodeOptions=t?.encodeOptions??{},this.pixelAspectRatio=it({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),qn?.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return j(null!==this._data),this._data instanceof Wn?new jn(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):Yn(this._data)?new jn(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(j(this._layout),new jn(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new jn(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(qn?.unregister(this),this._data instanceof Wn?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Yn(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){if(eo(e),this._closed)throw new Error("VideoSample is closed.");if(null==(e.format??this.format))throw new Error("Cannot get allocation size when format is null.");if(Yn(this._data))return this._data.allocationSize(e);return ro(this,e).allocationSize}async copyTo(e,t={}){if(!le(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(eo(t),this._closed)throw new Error("VideoSample is closed.");if(null==(t.format??this.format))throw new Error("Cannot copy video sample data when format is null.");if(j(null!==this._data),Yn(this._data))return this._data.copyTo(e,t);if(t.format&&!["RGBA","RGBX","BGRA","BGRX"].includes(this.format)&&["RGBA","RGBX","BGRA","BGRX"].includes(t.format)){if(!(this._data instanceof Wn)){if("undefined"===typeof VideoFrame)throw new Error("For this sample, converting from a non-RGB to an RGB format requires VideoFrame to be defined.");const i=this.toVideoFrame(),r=await i.copyTo(e,t);return i.close(),r}{const i={stack:[],error:void 0,hasError:!1};try{const r=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,await this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},t.colorSpace??"srgb"),!1);if(!(r instanceof jn))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(r.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${r.format}' instead.`);return await r.copyTo(e,t)}catch(c){i.error=c,i.hasError=!0}finally{Ln(i)}}}const i=ro(this,t);j(this.format);const r=Y(e);if(r.byteLength<i.allocationSize)throw new TypeError(`Destination buffer too small. Required: ${i.allocationSize}, Available: ${r.byteLength}`);const a=io(this.format);let s;if(this._data instanceof Wn){let e=this._data.getDataPlanes();if(Xe(e)&&(e=await e),!Array.isArray(e)||e.some(e=>!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');s=e}else if(this._data instanceof Uint8Array)j(this._layout),j(this._layout.length===a.length),s=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");j(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);s=[{data:Y(t.data),stride:4*this.codedWidth}]}const n=[],o=a.length;for(let l=0;l<o;l++){const e=i.computedLayouts[l],t=s[l].stride,a=s[l].data;let o=e.sourceTop*t;o+=e.sourceLeftBytes;let c=e.destinationOffset;const u=e.sourceWidthBytes,h={offset:c,stride:e.destinationStride};for(let i=0;i<e.sourceHeight;i++){if(o+u>a.byteLength)throw new Error("Source buffer OOB read.");if(c+u>r.byteLength)throw new Error("Destination buffer OOB write.");const i=a.subarray(o,o+u);r.set(i,c),o+=t,c+=e.destinationStride}n.push(h)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),a=this.format.includes("X")&&t.format.includes("A");if(e||a)for(let t=0;t<i.allocationSize;t+=4){if(e){const e=r[t],i=r[t+2];r[t]=i,r[t+2]=e}a&&(r[t+3]=255)}}return n}toVideoFrame(){if(this._closed)throw new Error("VideoSample is closed.");if(j(null!==this._data),this._data instanceof Wn){if(null===this.format)throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if format is null.");const e=this._data.getDataPlanes();if(Xe(e))throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if getDataPlanes() returns a promise.");const t=e.reduce((e,t)=>e+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const a=[];for(const s of e)i.set(s.data,r),a.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:a[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return Yn(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(j(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,a,s,n,o,c){let l=0,u=0,h=this.displayWidth,d=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(l=t,u=i,h=r,d=a,f=s,m=n,void 0!==o?(p=o,g=c):(p=h,g=d)):(f=t,m=i,void 0!==r&&(p=r,g=a)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(l))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:l,sy:u,sWidth:h,sHeight:d}=this._rotateSourceRegion(l,u,h,d,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const w=this.rotation%180===0?1:p/g;e.scale(1/w,w),e.drawImage(k,l,u,h,d,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&Zn(t.crop,"options.");const i=e.canvas.width,r=e.canvas.height,a=t.rotation??this.rotation,[s,n]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let o,c,l,u,h=t.crop;h&&(h=Jn(h,s,n));const{sx:d,sy:f,sWidth:m,sHeight:p}=this._rotateSourceRegion(t.crop?.left??0,t.crop?.top??0,t.crop?.width??s,t.crop?.height??n,a);if("fill"===t.fit)o=0,c=0,l=i,u=r;else{const[e,a]=t.crop?[t.crop.width,t.crop.height]:[s,n],h="contain"===t.fit?Math.min(i/e,r/a):Math.max(i/e,r/a);l=e*h,u=a*h,o=(i-l)/2,c=(r-u)/2}e.save();const g=a%180===0?1:l/u;e.translate(i/2,r/2),e.rotate(a*Math.PI/180),e.scale(1/g,g),e.translate(-i/2,-r/2),e.drawImage(this.toCanvasImageSource(),d,f,m,p,o,c,l,u),e.restore()}_rotateSourceRegion(e,t,i,r,a){return 90===a?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===a?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===a&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,a=e.height,[s,n]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,c=i.crop?i.crop.height:n;let l=0;2*r<o&&2*a<c&&(l=Math.floor(Math.log2(Math.min(o/r,c/a))));const u=r*2**l,h=a*2**l,{canvas:d,context:f,isNew:m}=l>0?Gn(u,h):{canvas:e,context:t,isNew:i.targetIsFresh};f.imageSmoothingQuality="high",i.fillBlack?(f.fillStyle="black",f.fillRect(0,0,u,h)):m||f.clearRect(0,0,u,h),this.drawWithFit(f,{fit:i.fit,rotation:i.rotation,crop:i.crop}),f.globalCompositeOperation="copy";for(let p=l;p>1;p--){const e=r*2**p,t=a*2**p;f.drawImage(d,0,0,e,t,0,0,e/2,t/2)}f.globalCompositeOperation="source-over",l>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(d,0,0,2*r,2*a,0,0,r,a),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(j(null!==this._data),this._data instanceof Wn||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}async transform(e){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&Zn(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const t=K(this.rotation+(e.rotate??0)),[i,r]=t%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let a=e.crop;a&&(a=Jn(a,i,r));const s=a?a.width:i,n=a?a.height:r,o=s/n;let c,l;void 0!==e.width&&void 0===e.height?(c=e.width,l=c/o):void 0===e.width&&void 0!==e.height?(l=e.height,c=l*o):void 0!==e.width&&void 0!==e.height?(c=e.width,l=e.height):(c=s,l=n),c=Be(c,e.roundDimensionsTo??1),l=Be(l,e.roundDimensionsTo??1);const u={width:c,height:l,fit:e.fit??"fill",rotation:t,crop:a??{left:0,top:0,width:i,height:r},alpha:e.alpha??"keep"};for(const m of Kn){let e=m(this,u);if(Xe(e)&&(e=await e),null!==e)return e}const{canvas:h,context:d,isNew:f}=Gn(u.width,u.height);return this._drawWithFitAndMipmapping(h,d,{fit:u.fit,rotation:u.rotation,crop:u.crop,targetIsFresh:f,fillBlack:"discard"===u.alpha}),new jn(h,{timestamp:this.timestamp,duration:this.duration,rotation:0})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const Kn=[],Xn=[];let $n=0;const Gn=(e,t)=>{for(const a of Xn)if(a.canvas.width===e&&a.canvas.height===t)return a.age=$n++,{canvas:a.canvas,context:a.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return Xn.length>=3&&Xn.splice(tt(Xn,e=>e.age),1),Xn.push({canvas:i,context:r,age:$n++}),{canvas:i,context:r,isNew:!0}};class Qn{constructor(e){if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(te);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(re);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(se);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=e?.primaries??null,this.transfer=e?.transfer??null,this.matrix=e?.matrix??null,this.fullRange=e?.fullRange??null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const Yn=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,Jn=(e,t,i)=>{const r=Math.min(e.left,t),a=Math.min(e.top,i),s=Math.min(e.width,t-r),n=Math.min(e.height,i-a);return j(s>=0),j(n>=0),{left:r,top:a,width:s,height:n}},Zn=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},eo=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},to=(e,t,i)=>{const r=io(e),a=[];let s=0;for(const n of r){const e=Math.ceil(t/n.widthDivisor),r=Math.ceil(i/n.heightDivisor),o=e*n.sampleBytes,c=o*r;a.push({offset:s,stride:o}),s+=c}return a},io=e=>{const t=(e,t,i,r,a)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return a&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:Te(e),j(!1)}},ro=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,a=ao(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let n;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");n=t.format}else n=e.format;return no(a,n,s)},ao=(e,t,i,r,a)=>{const s={...e};if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!so(a,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},so=(e,t)=>{if(null===e)return!0;const i=io(e);for(let r=0;r<i.length;r++){const e=i[r],a=e.widthDivisor,s=e.heightDivisor;if((t.x||0)%a!==0)return!1;if((t.y||0)%s!==0)return!1}return!0},no=(e,t,i)=>{const r=io(t),a=r.length;if(void 0!==i&&i.length!==a)throw new TypeError(`Layout must have ${a} planes.`);let s=0;const n=[],o=[];for(let c=0;c<a;c++){const t=r[c],a=t.sampleBytes,l=t.widthDivisor,u=t.heightDivisor,h={destinationOffset:0,destinationStride:0,sourceTop:0,sourceHeight:0,sourceLeftBytes:0,sourceWidthBytes:0};if(h.sourceTop=Math.ceil(Math.trunc(e.y||0)/u),h.sourceHeight=Math.ceil(Math.trunc(e.height||0)/u),h.sourceLeftBytes=Math.floor(Math.trunc(e.x||0)/l)*a,h.sourceWidthBytes=Math.floor(Math.trunc(e.width||0)/l)*a,void 0!==i){const e=i[c];if(e.stride<h.sourceWidthBytes)throw new TypeError(`Stride for plane ${c} is too small.`);h.destinationOffset=e.offset,h.destinationStride=e.stride}else h.destinationOffset=s,h.destinationStride=h.sourceWidthBytes;const d=h.destinationStride*h.sourceHeight+h.destinationOffset;if(d>4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(d),s=Math.max(s,d);for(let e=0;e<c;e++){const t=n[e];if(!(o[c]<=t.destinationOffset||o[e]<=h.destinationOffset))throw new TypeError("Planes overlap.")}n.push(h)}return{allocationSize:s,computedLayouts:n}},oo=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]);class co{constructor(){this._referenceCount=0}}class lo{get microsecondTimestamp(){return Math.trunc(Me*this.timestamp)}get microsecondDuration(){return Math.trunc(Me*this.duration)}constructor(e){if(this._closed=!1,po(e)){if(null===e.format)throw new TypeError("AudioData with null format is not supported.");this._data=e,this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=e.numberOfFrames,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp/1e6,this.duration=e.numberOfFrames/e.sampleRate}else if(e instanceof co){if(this._data=e,e._referenceCount++,this.format=e.getFormat(),!oo.has(this.format))throw new TypeError("getFormat() must return an AudioSampleFormat.");if(this.sampleRate=e.getSampleRate(),!Number.isInteger(this.sampleRate)||this.sampleRate<=0)throw new TypeError("getSampleRate() must return a positive integer.");if(this.numberOfFrames=e.getNumberOfFrames(),!Number.isInteger(this.numberOfFrames)||this.numberOfFrames<0)throw new TypeError("getNumberOfFrames() must return a non-negative integer.");if(this.numberOfChannels=e.getNumberOfChannels(),!Number.isInteger(this.numberOfChannels)||this.numberOfChannels<=0)throw new TypeError("getNumberOfChannels() must return a positive integer.");if(this.timestamp=e.getTimestamp(),!Number.isFinite(this.timestamp))throw new TypeError("getTimestamp() must return a finite number.");this.duration=this.numberOfFrames/this.sampleRate}else{if(!e||"object"!==typeof e)throw new TypeError("Invalid AudioDataInit: must be an object.");if(!oo.has(e.format))throw new TypeError("Invalid AudioDataInit: invalid format.");if(!Number.isFinite(e.sampleRate)||e.sampleRate<=0)throw new TypeError("Invalid AudioDataInit: sampleRate must be > 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(e?.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(uo(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*uo(this.format);if(i.byteLength<r)throw new TypeError("Invalid AudioDataInit: insufficient data size.");this._data=i}qn?.register(this,{type:"audio",data:this._data},this)}allocationSize(e){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(!Number.isInteger(e.planeIndex)||e.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==e.format&&!oo.has(e.format))throw new TypeError("Invalid format.");if(void 0!==e.frameOffset&&(!Number.isInteger(e.frameOffset)||e.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==e.frameCount&&(!Number.isInteger(e.frameCount)||e.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const t=e.format??this.format,i=e.frameOffset??0;if(i>=this.numberOfFrames)throw new RangeError("frameOffset out of range");const r=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-i;if(r>this.numberOfFrames-i)throw new RangeError("frameCount out of range");const a=uo(t),s=ho(t);if(s&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!s&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(s?r:r*this.numberOfChannels)*a}copyTo(e,t){if(!le(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!oo.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:a}=t;let{planeIndex:s}=t,n=this.format;const o=i??this.format;if(!o)throw new Error("Destination format not determined");const c=this.numberOfFrames,l=this.numberOfChannels,u=a??0;if(u>=c)throw new RangeError("frameOffset out of range");const h=void 0!==r?r:c-u;if(h>c-u)throw new RangeError("frameCount out of range");const d=uo(o),f=ho(o);if(f&&s>=l)throw new RangeError("planeIndex out of range");if(!f&&0!==s)throw new RangeError("planeIndex out of range");const m=(f?h:h*l)*d;if(e.byteLength<m)throw new RangeError("Destination buffer is too small");const p=J(e),g=mo(o);if(po(this._data)){if(Ue()&&l>2&&o!==n)return void go(this._data,p,n,o,l,s,u,h);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:u,frameCount:h,format:o})}catch(S){if("f32-planar"===o)throw S;n="f32-planar"}}const k=fo(n),y=uo(n),b=ho(n);let w;if(this._data instanceof co){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=c*y*(b?1:l);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(b)if(f)w=e(s),s=0;else{w=new Uint8Array(c*y*l);for(let t=0;t<l;t++){const i=e(t);w.set(i,t*c*y)}}else w=e(0)}else if(this._data instanceof Uint8Array)w=this._data;else if(j("f32-planar"===n),f)w=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:s})),this._data.copyTo(w,{format:"f32-planar",planeIndex:s}),s=0;else{w=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:0})*l);for(let e=0;e<l;e++)this._data.copyTo(w.subarray(e*c*y,(e+1)*c*y),{format:"f32-planar",planeIndex:e})}const T=J(w);for(let v=0;v<h;v++)if(f){let e;e=b?(s*c+(v+u))*y:((v+u)*l+s)*y;g(p,v*d,k(T,e))}else for(let e=0;e<l;e++){let t;t=b?(e*c+(v+u))*y:((v+u)*l+e)*y;g(p,(v*l+e)*d,k(T,t))}}clone(){if(this._closed)throw new Error("AudioSample is closed.");if(this._data instanceof co){const e=new lo(this._data);return e.setTimestamp(this.timestamp),e}if(po(this._data)){const e=new lo(this._data.clone());return e.setTimestamp(this.timestamp),e}return new lo({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp,data:this._data})}trim(e,t=this.numberOfFrames){if(!Number.isInteger(e)||e<0)throw new TypeError("startFrame must be a non-negative integer.");if(!Number.isInteger(t)||t<0)throw new TypeError("endFrame must be a non-negative integer.");if(e>this.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t<e)throw new RangeError("endFrame must not be less than startFrame.");if(this._closed)throw new Error("AudioSample is closed.");const i=t-e,r=uo(this.format);let a;if(ho(this.format)){const t=i*r;if(a=new Uint8Array(t*this.numberOfChannels),i>0)for(let r=0;r<this.numberOfChannels;r++)this.copyTo(a.subarray(r*t,(r+1)*t),{planeIndex:r,format:this.format,frameOffset:e,frameCount:i})}else a=new Uint8Array(i*this.numberOfChannels*r),i>0&&this.copyTo(a,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new lo({data:a,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(qn?.unregister(this),this._data instanceof co?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):po(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof co?this._createAudioDataFromData():po(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(ho(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(new Uint8Array(t,i*e,e),{planeIndex:i,format:this.format});return new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:t})}{const e=new ArrayBuffer(this.allocationSize({planeIndex:0,format:this.format}));return this.copyTo(e,{planeIndex:0,format:this.format}),new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:e})}}toAudioBuffer(){if(this._closed)throw new Error("AudioSample is closed.");const e=new AudioBuffer({numberOfChannels:this.numberOfChannels,length:this.numberOfFrames,sampleRate:this.sampleRate}),t=new Float32Array(this.allocationSize({planeIndex:0,format:"f32-planar"})/4);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(t,{planeIndex:i,format:"f32-planar"}),e.copyToChannel(t,i);return e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}[Symbol.dispose](){this.close()}static*_fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,a=e.length,s=Math.floor(24e4/i);let n=0,o=a;for(;o>0;){const a=Math.min(s,o),c=new Float32Array(i*a);for(let t=0;t<i;t++)e.copyFromChannel(c.subarray(t*a,(t+1)*a),t,n);yield new lo({format:"f32-planar",sampleRate:r,numberOfFrames:a,numberOfChannels:i,timestamp:t+n/r,data:c}),n+=a,o-=a}}static fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,a=e.length,s=Math.floor(24e4/i);let n=0,o=a;const c=[];for(;o>0;){const a=Math.min(s,o),l=new Float32Array(i*a);for(let t=0;t<i;t++)e.copyFromChannel(l.subarray(t*a,(t+1)*a),t,n);const u=new lo({format:"f32-planar",sampleRate:r,numberOfFrames:a,numberOfChannels:i,timestamp:t+n/r,data:l});c.push(u),n+=a,o-=a}return c}}const uo=e=>{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},ho=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},fo=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},mo=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,Ie(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,Ie(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,Ie(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},po=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,go=(e,t,i,r,a,s,n,o)=>{const c=fo(i),l=mo(r),u=uo(i),h=uo(r),d=ho(i);if(ho(r))if(d){const r=new ArrayBuffer(o*u),a=J(r);e.copyTo(r,{planeIndex:s,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++){l(t,e*h,c(a,e*u))}}else{const r=new ArrayBuffer(o*a*u),d=J(r);e.copyTo(r,{planeIndex:0,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++){l(t,e*h,c(d,(e*a+s)*u))}}else if(d){const r=new ArrayBuffer(o*u),s=J(r);for(let d=0;d<a;d++){e.copyTo(r,{planeIndex:d,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++){l(t,(e*a+d)*h,c(s,e*u))}}}else{const r=new ArrayBuffer(o*a*u),s=J(r);e.copyTo(r,{planeIndex:0,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++)for(let i=0;i<a;i++){const r=e*a+i;l(t,r*h,c(s,r*u))}}},ko=[],yo=[],bo=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},wo=e=>{if(!Je(e))throw new TypeError("timestamp must be a number.")},To=(e,t,i)=>i.verifyKeyPackets?t.then(async t=>{if(!t||"delta"===t.type)return t;const i=await e.determinePacketType(t);return i&&(t.type=i),t}):t;class So{constructor(e){if(!(e instanceof Oo))throw new TypeError("track must be an InputTrack.");this._track=e}async getFirstPacket(e={}){if(bo(e),this._track.input._disposed)throw new Zo;return To(this._track,this._track._backing.getFirstPacket(e),e)}async getFirstKeyPacket(e={}){bo(e);const t=await this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null}async getPacket(e,t={}){if(wo(e),bo(t),this._track.input._disposed)throw new Zo;return To(this._track,this._track._backing.getPacket(e,t),t)}async getNextPacket(e,t={}){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");if(bo(t),this._track.input._disposed)throw new Zo;return To(this._track,this._track._backing.getNextPacket(e,t),t)}async getKeyPacket(e,t={}){if(wo(e),bo(t),this._track.input._disposed)throw new Zo;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=await this._track._backing.getKeyPacket(e,t);if(!i)return i;j("key"===i.type);return"delta"===await this._track.determinePacketType(i)?this.getKeyPacket(i.timestamp-1/await this._track.getTimeResolution(),t):i}async getNextKeyPacket(e,t={}){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");if(bo(t),this._track.input._disposed)throw new Zo;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=await this._track._backing.getNextKeyPacket(e,t);if(!i)return i;j("key"===i.type);return"delta"===await this._track.determinePacketType(i)?this.getNextKeyPacket(i,t):i}packets(e,t,i={}){if(void 0!==e&&!(e instanceof ar))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!i?.metadataOnly)throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof ar))throw new TypeError("endPacket must be an EncodedPacket.");if(bo(i),this._track.input._disposed)throw new Zo;const r=[];let{promise:a,resolve:s}=ke(),{promise:n,resolve:o}=ke(),c=!1,l=!1,u=null,h=!1;const d=[],f=()=>Math.max(2,d.length);(async()=>{let u=e??await this.getFirstPacket(i);for(;u&&!l&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=t?.sequenceNumber);)r.length>f()?(({promise:n,resolve:o}=ke()),await n):(r.push(u),s(),({promise:a,resolve:s}=ke()),u=await this.getNextPacket(u,i));c=!0,s()})().catch(e=>{h||(u=e,h=!0,s())});const m=this._track;return{async next(){for(;;){if(m.input._disposed)throw new Zo;if(l)return{value:void 0,done:!0};if(h)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(d.push(t);d.length>0&&t-d[0]>=1e3;)d.shift();return o(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};await a}},return:async()=>(l=!0,o(),s(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}class vo{constructor(e,t){this.onSample=e,this.onError=t}}class Po{mediaSamplesInRange(e=-1/0,t=1/0,i){wo(e),wo(t);const r=[];let a=!1,s=null,{promise:n,resolve:o}=ke(),{promise:c,resolve:l}=ke(),u=!1,h=!1,d=!1,f=null,m=null,p=!1;const g={...i,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{f=await this._createDecoder(i=>{l(),i.timestamp>=t&&(h=!0),h?i.close():(s&&(i.timestamp>e?(r.push(s),a=!0):s.close()),i.timestamp>=e&&(r.push(i),a=!0),s=a?null:i,r.length>0&&(o(),({promise:n,resolve:o}=ke())))},e=>{p||(m=e,p=!0,o())});const i=this._createPacketSink(),k=await i.getKeyPacket(e,g)??await i.getFirstKeyPacket(g);let y=k;const b=i.packets(k??void 0,void 0,g);for(await b.next();y&&!h&&!this._track.input._disposed;){const e=Io(r.length);if(r.length+f.getDecodeQueueSize()>e){({promise:c,resolve:l}=ke()),await c;continue}f.decode(y);const t=await b.next();if(t.done)break;y=t.value}await b.return(),d||this._track.input._disposed||await f.flush(),!a&&s&&r.push(s),u=!0,o()})().catch(e=>{p||(m=e,p=!0,o())}).finally(()=>{f?.close()});const k=this._track,y=()=>{s?.close();for(const e of r)e.close()};return{async next(){for(;;){if(k.input._disposed)throw d=!0,h=!0,y(),new Zo;if(d)return{value:void 0,done:!0};if(p)throw d=!0,h=!0,y(),m;if(r.length>0){const e=r.shift();return l(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};await n}},return:async()=>(d=!0,h=!0,l(),o(),y(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=async function*(e){Symbol.iterator in e?yield*e[Symbol.iterator]():yield*e[Symbol.asyncIterator]()}(e),r=[],a=[];let{promise:s,resolve:n}=ke(),{promise:o,resolve:c}=ke(),l=!1,u=!1,h=null,d=null,f=!1;const m=e=>{a.push(e),n(),({promise:s,resolve:n}=ke())},p={...t,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{h=await this._createDecoder(e=>{if(c(),u)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i<t;i++)m(i<t-1?e.clone():e);else e.close()},e=>{f||(d=e,f=!0,n())});const e=this._createPacketSink();let t=null,s=null,g=-1;const k=async()=>{j(s),j(h);let t=s;for(h.decode(t);t.sequenceNumber<g;){const i=Io(a.length);for(;a.length+h.getDecodeQueueSize()>i&&!u;)({promise:o,resolve:c}=ke()),await o;if(u)break;const r=await e.getNextPacket(t,p);j(r),h.decode(r),t=r}g=-1},y=async()=>{j(h),await h.flush();for(let e=0;e<r.length;e++)m(null);r.length=0};for await(const a of i){if(wo(a),u||this._track.input._disposed)break;const i=await e.getPacket(a,p),n=i&&await e.getKeyPacket(a,p);n?(t&&(n.sequenceNumber!==s.sequenceNumber||i.timestamp<t.timestamp)&&(await k(),await y()),r.push(i.timestamp),g=Math.max(i.sequenceNumber,g),t=i,s=n):(-1!==g&&(await k(),await y()),m(null),t=null)}u||this._track.input._disposed||(-1!==g&&await k(),await y()),l=!0,n()})().catch(e=>{f||(d=e,f=!0,n())}).finally(()=>{h?.close()});const g=this._track,k=()=>{for(const e of a)e?.close()};return{async next(){for(;;){if(g.input._disposed)throw u=!0,k(),new Zo;if(u)return{value:void 0,done:!0};if(f)throw u=!0,k(),d;if(a.length>0){const e=a.shift();return j(void 0!==e),c(),{value:e,done:!1}}if(l)return{value:void 0,done:!0};await s}},return:async()=>(u=!0,c(),n(),k(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}const Io=e=>0===e?40:8;class xo extends vo{constructor(e,t,i,r,a,s){super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=a,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new Le,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const n=ko.find(e=>e.supports(i,r));if(n)this.customDecoder=new n,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof jn))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();j(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(Ve()){if("avc"===i&&this.decoderConfig.description){const e=Mt(Y(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=Nt(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig={...this.decoderConfig,hardwareAcceleration:"prefer-software"}),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=Lt(t),this.decoderConfig={...this.decoderConfig,description:At(e)}))}}oe(this.decoderConfig.colorSpace)||(this.decoderConfig={...this.decoderConfig,colorSpace:{primaries:this.decoderConfig.colorSpace?.primaries??"bt709",matrix:this.decoderConfig.colorSpace?.matrix??"bt709",transfer:this.decoderConfig.colorSpace?.transfer??"bt709",fullRange:this.decoderConfig.colorSpace?.fullRange??!1}})}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(j(this.decoder),Math.max(this.decoder.decodeQueueSize,this.alphaDecoder?.decodeQueueSize??0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(j(this.decoder),Ue()||ge(this.inputTimestamps,e.timestamp,e=>e),Ve()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const a of xt(e.data,this.decoderConfig)){const r=Ct(e.data[a.offset]);if(i||(i=r>=1&&r<=5),r===wt.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(a.offset,a.offset+a.length))}if(!this.decoderConfig.description)for(let e=0;e<t.length;e++){const i=t[e];if(Ct(i[0])!==wt.SPS)continue;const r=Nt(i);r&&0!==r.maxDecFrameBuffering&&1!==r.bitstreamRestrictionFlag&&(t[e]=Lt(r));break}const r=((e,t)=>{if(t.description){const i=3&Y(t.description)[4];return Rt(e,i+1)}return _t(e)})(t,this.decoderConfig);e=new ar(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=Jt(e.data,this.decoderConfig);t&&(e=new ar(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new Bo),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();j(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();j(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=ni(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(t??e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of zt(e,this.decoderConfig)){const i=Ut(e[t.offset]);if(i===St.RASL_N||i===St.RASL_R)return!0}return!1}sampleHandler(e){if(Ue()){if(this.sampleQueue.length>0&&e.timestamp>=X(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}ge(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();j(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}async mergeAlpha(e,t){const i=ke();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){j(this.merger);const i=await this.merger.merge(e,t);r.sample=new jn(i)}else r.sample=new jn(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(a){ye(this.finalSamples,r),this.onError(a)}finally{ye(this.mergeAlphaPromises,i.promise),i.resolve()}}async flush(){if(this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(j(this.decoder),await Promise.all([this.decoder.flush(),this.alphaDecoder?.flush()]),await Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),Ue()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(j(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.merger?.close());for(const e of this.sampleQueue)e.close();this.sampleQueue.length=0}}let Co=null;class Bo{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!Co){const e=new Blob([`(${Eo.toString()})()`],{type:"application/javascript"});Co=URL.createObjectURL(e)}const e=Ie(navigator.hardwareConcurrency,1,4);for(let t=0;t<e;t++){const e=new Worker(Co);e.addEventListener("message",e=>{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=ke();this.pendingRequests.set(i,r);const a=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,a.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const Eo=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:a,alpha:s}=e.data;i=i.then(async()=>{try{const e=await r(a,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{a.close(),s.close()}})});const r=async(e,t)=>{const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),c=i.includes("P12"),l=r.includes("P10"),u=r.includes("P12");if(l!==o||u!==c)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return await a(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return await s(e,t,i);if("NV12"===i)return await n(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)},a=async(e,t,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=new Uint8Array(4*s);await e.copyTo(n);const c=await o(t,r,a,1);for(let o=0,u=3;o<s;o++,u+=4)n[u]=c[o];const l={format:"RGBX"===i||"RGBA"===i?"RGBA":"BGRA",codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[n.buffer]};return new VideoFrame(n,l)},s=async(e,t,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=i.includes("P10"),n=i.includes("P12"),c=s||n?2:1;let l,u;i.startsWith("I420")?(l=Math.ceil(r/2),u=Math.ceil(a/2)):i.startsWith("I422")?(l=Math.ceil(r/2),u=a):(l=r,u=a);const h=r*a,d=h*c,f=l*u*c,m=new Uint8Array(d+2*f+h*c);await e.copyTo(m);const p=await o(t,r,a,c),g=d+2*f;m.set(p,g);const k={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[m.buffer]};return new VideoFrame(m,k)},n=async(e,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=Math.ceil(r/2)*Math.ceil(a/2),c=e.allocationSize();t&&t.byteLength===c||(t=new Uint8Array(c)),await e.copyTo(t);const l=new Uint8Array(s+2*n+s);l.set(t.subarray(0,s),0);const u=s,h=s+n,d=s;for(let o=0;o<n;o++)l[u+o]=t[d+2*o],l[h+o]=t[d+2*o+1];const f=await o(i,r,a,1);l.set(f,s+2*n);const m={format:"I420A",codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[l.buffer]};return new VideoFrame(l,m)},o=async(t,i,r,a)=>{const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),await t.copyTo(e);const n=t.format;if("RGBA"===n||"BGRA"===n||"RGBX"===n||"BGRX"===n){const t="RGBA"===n||"RGBX"===n?0:2,a=i*r;for(let i=0;i<a;i++)e[i]=e[4*i+t];return e.subarray(0,a)}return e.subarray(0,i*r*a)}},_o=e=>{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class Ro extends Po{constructor(e,t={}){if(!(e instanceof Uo))throw new TypeError("videoTrack must be an InputVideoTrack.");_o(t),super(),this._track=e,this._decoderOptions=t}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(je("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=await this._track.getCodec(),r=await this._track.getRotation();let a=await this._track.getDecoderConfig();const s=await this._track.getTimeResolution();return j(i&&a),a={...a,hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency},new xo(e,t,i,a,r,s)}_createPacketSink(){return new So(this._track)}async getSample(e,t={}){wo(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Fo{constructor(e,t={}){if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof Uo))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&Zn(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&_o(t.decoderOptions),this._videoTrack=e,this._alpha=t.alpha??!1,this._options=t,this._fit=t.fit??"fill",this._videoSampleSink=new Ro(e,t.decoderOptions),this._canvasPool=Array.from({length:t.poolSize??0},()=>null)}_ensureInit(){return this._initPromise??(this._initPromise=(async()=>{const e=this._options,t=this._videoTrack,i=e.rotation??await t.getRotation(),r=await t.getSquarePixelWidth(),a=await t.getSquarePixelHeight(),[s,n]=i%180===0?[r,a]:[a,r];let o=e.crop;o&&(o=Jn(o,s,n));let[c,l]=o?[o.width,o.height]:[s,n];const u=c/l;void 0!==e.width&&void 0===e.height?(c=e.width,l=Math.round(c/u)):void 0===e.width&&void 0!==e.height?(l=e.height,c=Math.round(l*u)):void 0!==e.width&&void 0!==e.height&&(c=e.width,l=e.height),this._width=c,this._height=l,this._rotation=i,this._crop=o})())}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],a=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),a=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||We()});j(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:a,fillBlack:!this._alpha&&We()});const n={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),n}async getCanvas(e,t){wo(e),await this._ensureInit();const i=await this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)}async*canvases(e,t,i){await this._ensureInit(),yield*Pe(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e))}async*canvasesAtTimestamps(e,t){await this._ensureInit(),yield*Pe(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e))}}class Ao extends vo{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new Le,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const a=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const a=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(a*s)/s),e(t)},s=yo.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof lo))throw new TypeError("The argument passed to onSample must be an AudioSample.");a(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{a(new lo(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(j(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(j(this.decoder),this.expectedFirstTimestamp??(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}async flush(){this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(j(this.decoder),await this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(j(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class Mo extends vo{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,j(Ri.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:a,littleEndian:s}=Vi(this.codec);switch(this.inputSampleSize=a,a){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-128:"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const a=(1<<i|(15&r)<<i-4|1<<i-5)-33;return 0===t?a:-a})(e.getUint8(t)):"alaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let a=0;return a=4!==i?1<<i|(15&r)<<i-4|1<<i-5:r<<1|1,0===t?a:-a})(e.getUint8(t)):j(!1);break;case 2:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint16(t,s)-32768:"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):j(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>Se(e,t,s)-2**23:"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>Se(e,t,i)<<8>>8)(e,t,s):j(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-2**31:"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):j(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):j(!1);break;default:Te(a),j(!1)}switch(a){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+128));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:Te(a),j(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=J(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,a=new ArrayBuffer(r),s=new DataView(a);for(let l=0;l<i*this.decoderConfig.numberOfChannels;l++){const e=l*this.inputSampleSize,i=l*this.outputSampleSize,r=this.readInputValue(t,e);this.writeOutputValue(s,i,r)}const n=i/this.decoderConfig.sampleRate;(null===this.currentTimestamp||Math.abs(e.timestamp-this.currentTimestamp)>=n)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=n;const c=new lo({format:this.outputFormat,data:a,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(c)}async flush(){}close(){}}class Do extends Po{constructor(e){if(!(e instanceof qo))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(je("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=await this._track.getCodec(),r=await this._track.getDecoderConfig();return j(i&&r),Ri.includes(r.codec)?new Mo(e,t,r):new Ao(e,t,i,r)}_createPacketSink(){return new So(this._track)}async getSample(e,t={}){wo(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class No{constructor(e){if(!(e instanceof qo))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new Do(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}async getBuffer(e,t){wo(e);const i=await this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)}buffers(e,t,i){return Pe(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return Pe(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class Oo{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof Uo}isAudioTrack(){return this instanceof qo}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}async getInternalCodecId(){return this._backing.getInternalCodecId()}get internalCodecId(){return Lo(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}async getLanguageCode(){return this._backing.getLanguageCode()}get languageCode(){return Lo(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}async getName(){return this._backing.getName()}get name(){return Lo(this._backing.getName(),"name","getName")}async getTimeResolution(){return this._backing.getTimeResolution()}get timeResolution(){return Lo(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}async isRelativeToUnixEpoch(){return this._backing.isRelativeToUnixEpoch()}async getUnixTimeForTimestamp(e){return this._backing.getUnixTimeForTimestamp(e)}async hasUnixTimeMapping(){return null!==await this._backing.getUnixTimeForTimestamp(await this.getFirstTimestamp())}async getDisposition(){return this._backing.getDisposition()}get disposition(){return Lo(this._backing.getDisposition(),"disposition","getDisposition")}async getBitrate(){return this._backing.getBitrate()}async getAverageBitrate(){return this._backing.getAverageBitrate()}async getFirstTimestamp(){const e=await this._backing.getFirstPacket({metadataOnly:!0});return e?.timestamp??0}async computeDuration(e){const t=await this._backing.getPacket(1/0,{metadataOnly:!0,...e});return Ee((t?.timestamp??0)+(t?.duration??0),await this.getTimeResolution())}async getDurationFromMetadata(e={}){return this._backing.getDurationFromMetadata(e)}async computePacketStats(e=1/0,t){const i=new So(this);let r=1/0,a=-1/0,s=0,n=0;for await(const o of i.packets(void 0,void 0,{metadataOnly:!0,...t})){if(s>=e&&o.timestamp>=a)break;r=Math.min(r,o.timestamp),a=Math.max(a,o.timestamp+o.duration),s++,n+=o.byteLength}return{packetCount:s,averagePacketRate:s?Number((s/(a-r)).toPrecision(16)):0,averageBitrate:s?Number((8*n/(a-r)).toPrecision(16)):0}}async isLive(){return null!==await this._backing.getLiveRefreshInterval()}async getLiveRefreshInterval(){return this._backing.getLiveRefreshInterval()}canBePairedWith(e){if(!(e instanceof Oo))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&0n!==(this._backing.getPairingMask()&e._backing.getPairingMask())}async getPairableTracks(e){return this.input.getTracks(jo({filter:e=>e.canBePairedWith(this)},e))}async getPairableVideoTracks(e){return this.input.getVideoTracks(jo({filter:e=>e.canBePairedWith(this)},e))}async getPairableAudioTracks(e){return this.input.getAudioTracks(jo({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableVideoTrack(e){return this.input.getPrimaryVideoTrack(jo({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableAudioTrack(e){return this.input.getPrimaryAudioTrack(jo({filter:e=>e.canBePairedWith(this)},e))}async hasPairableTrack(e){e&&(e=zo(e));const t=await this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||await e(i)))return!0;return!1}hasPairableVideoTrack(e){return e&&(e=zo(e)),this.hasPairableTrack(async t=>t.isVideoTrack()&&(!e||await e(t)))}hasPairableAudioTrack(e){return e&&(e=zo(e)),this.hasPairableTrack(async t=>t.isAudioTrack()&&(!e||await e(t)))}}const Lo=(e,t,i)=>{if(Xe(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},zo=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return Xe(r)?r.then(i):i(r)}:void 0};class Uo extends Oo{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}async getCodec(){return this._backing.getCodec()}get codec(){return Lo(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??"prores"===await this._backing.getCodec()}async getCodedWidth(){return this._backing.getCodedWidth()}get codedWidth(){return Lo(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}async getCodedHeight(){return this._backing.getCodedHeight()}get codedHeight(){return Lo(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}async getRotation(){return this._backing.getRotation()}get rotation(){return Lo(this._backing.getRotation(),"rotation","getRotation")}async getSquarePixelWidth(){return this._backing.getSquarePixelWidth()}get squarePixelWidth(){return Lo(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}async getSquarePixelHeight(){return this._backing.getSquarePixelHeight()}get squarePixelHeight(){return Lo(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}async getPixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=it({num:await this.getSquarePixelWidth()*await this.getCodedHeight(),den:await this.getSquarePixelHeight()*await this.getCodedWidth()}))}get pixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=it({num:Lo(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*Lo(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:Lo(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*Lo(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")}))}async getDisplayWidth(){const e=await(this._backing.getMetadataDisplayWidth?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()}get displayWidth(){const e=this._backing.getMetadataDisplayWidth?.();if(void 0!==e){const t=Lo(e,"displayWidth","getDisplayWidth");if(null!==t)return t}const t=Lo(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return Lo(t,"displayWidth","getDisplayWidth")}async getDisplayHeight(){const e=await(this._backing.getMetadataDisplayHeight?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()}get displayHeight(){const e=this._backing.getMetadataDisplayHeight?.();if(void 0!==e){const t=Lo(e,"displayHeight","getDisplayHeight");if(null!==t)return t}const t=Lo(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return Lo(t,"displayHeight","getDisplayHeight")}async getColorSpace(){return this._backing.getColorSpace()}async hasHighDynamicRange(){const e=await this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix}async canBeTransparent(){return this._backing.canBeTransparent()}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(j(null!==t),ko.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(await VideoDecoder.isConfigSupported(e)).supported}catch(e){return ct._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=await this.getCodec();if(null===t)return null;const i=await this.getDecoderConfig();return j(i),ni(t,i,e.data)}async computeFrameRateMetrics(e={}){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!Je(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const t=await this.getTimeResolution(),i=e.targetPacketCount??256,r=new So(this),a=[];let s=-1/0,n=0;for await(const I of r.packets(void 0,void 0,{metadataOnly:!0})){if(a.length>=i&&I.timestamp>=s)break;a.push(I.timestamp),s=Math.max(s,I.timestamp),n++}const o=new Float64Array(a.length);for(let I=0;I<a.length;I++)o[I]=Math.round(a[I]*t);o.sort();let c=1;for(let I=1;I<o.length;I++)o[I]!==o[c-1]&&(o[c++]=o[I]);if(c<2)return{underlyingFrameRate:null,bestGuessFrameRate:t,minFrameRate:t,maxFrameRate:t,averageFrameRate:t,medianFrameRate:t,frameRateIsConstant:!0,probedPacketCount:n};const l=o.subarray(0,c),u=Xo(l,t),h=u??t,d=null!==u?t/u:null,f=new Map;let m=1/0,p=-1/0,g=0;for(let I=1;I<c;I++){const e=l[I]-l[I-1],t=null!==d?Math.max(1,Math.round(e/d)):e;f.set(t,(f.get(t)??0)+1),m=Math.min(m,t),p=Math.max(p,t),g+=t}const k=c-1,y=[...f.keys()].sort((e,t)=>e-t),b=k-1>>1,w=k>>1;let T=0,S=0,v=0;for(const I of y)if(v+=f.get(I),0===T&&v>b&&(T=I),v>w){S=I;break}const P=(h/T+h/S)/2;return{underlyingFrameRate:u,bestGuessFrameRate:null!==u?u:Go(P),minFrameRate:h/p,maxFrameRate:h/m,averageFrameRate:h*k/g,medianFrameRate:P,frameRateIsConstant:null!==u&&1===m&&1===p,probedPacketCount:n}}}class qo extends Oo{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}async getCodec(){return this._backing.getCodec()}get codec(){return Lo(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??!0}async getNumberOfChannels(){return this._backing.getNumberOfChannels()}get numberOfChannels(){return Lo(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}async getSampleRate(){return this._backing.getSampleRate()}get sampleRate(){return Lo(this._backing.getSampleRate(),"sampleRate","getSampleRate")}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(j(null!==t),yo.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(await AudioDecoder.isConfigSupported(e)).supported}catch(e){return ct._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");return null===await this.getCodec()?null:"key"}}const Wo=e=>-(e??-1/0),Ho=e=>-e,Vo=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when 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i=e;if(t?.filter){const r=e.map(e=>t.filter(e));if(r.some(e=>Xe(e))){const t=await Promise.all(r);i=e.filter((e,i)=>t[i])}else i=e.filter((e,t)=>r[t])}if(!t?.sortBy)return i;const r=i.map(e=>t.sortBy(e)),a=r.some(e=>Xe(e))?await Promise.all(r):r;return i.map((e,t)=>({track:e,sortValue:a[t]})).sort((e,t)=>{const i=Array.isArray(e.sortValue)?e.sortValue:[e.sortValue],r=Array.isArray(t.sortValue)?t.sortValue:[t.sortValue],a=Math.max(i.length,r.length);for(let s=0;s<a;s++){const e=i[s]??0,t=r[s]??0;if(e!==t)return e-t}return 0}).map(e=>e.track)},Xo=(e,t)=>{const i=1e6,r=1+1e-9,a=[12,15,20,24e3/1001,24,25,3e4/1001,30,48,50,6e4/1001,60,100,12e4/1001,120,144,240];if(e.length<2)return null;const s=new Float64Array(e.length-1);for(let T=1;T<e.length;T++){const t=e[T]-e[T-1];if(!(t>0))return null;s[T-1]=t}const n=s.slice();n.sort();let o=n[Math.floor(.05*n.length)];for(let T=0;T<6;T++){let e=0,t=0;for(const a of s){const i=Math.max(1,Math.round(a/o));Math.abs(a-i*o)>=r||(e+=a,t+=i)}if(0===t)return null;const i=e/t;if(Math.abs(i-o)<=1e-12*Math.max(1,o)){o=i;break}o=i}let c=0,l=0,u=0;for(const T of s){const e=Math.max(1,Math.round(T/o));Math.abs(T-e*o)>=r||(c++,l+=T,u+=e)}if(c/s.length<.98)return null;o=l/u;const h=1/Math.min(u,1e3),d=Math.max(Number.EPSILON,o-h),f=o+h,m=t/f,p=t/d,g=t/o;let k=null,y=1/0;for(const T of a){if(T<m||T>p)continue;const e=Math.abs(T/g-1);e<y&&(k=T,y=e)}if(null===k){const e=$o(d,f,i),r=$o(m,p,i);if(r&&(!e||r.den<e.den||r.den===e.den&&r.num<=e.num))k=r.num/r.den;else{if(!e)return null;k=t*e.den/e.num}}const b=t/k;let w=0;for(const T of s){const e=Math.max(1,Math.round(T/b));Math.abs(T-e*b)<r&&w++}return w/s.length<.98?null:k},$o=(e,t,i)=>{for(let r=1;r<=i;r++){const i=Math.floor(e*r)+1;if(i/r<t)return it({num:i,den:r})}return null},Go=e=>{const t=[24/1.001,30/1.001,60/1.001,120/1.001],i=[12,15,20,24,25,30,48,50,60,100,120,144,240];for(const s of t)if(Math.abs(s/e-1)<=5e-4)return s;let r=e,a=1/0;for(const s of i){const t=Math.abs(s/e-1);t<=.025&&t<a&&(r=s,a=t)}return r};Ye();const Qo=2;class Yo extends st{get disposed(){return this._disposed}constructor(e){if(super(),this._demuxerPromise=null,this._format=null,this._trackBackingsCache=null,this._backingToTrack=new Map,this._disposed=!1,this._nextSourceCacheAge=0,this._sourceRefs=[],this._sourceCache=[],this._sourceCachePromises=[],this._onFormatDetermined=null,!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(!Array.isArray(e.formats)||e.formats.some(e=>!(e instanceof dn)))throw new TypeError("options.formats must be an array of InputFormat.");if(!(e.source instanceof Os||e.source instanceof Ls))throw new TypeError("options.source must be a Source or SourceRef.");if(e.source instanceof Os&&e.source._disposed)throw new TypeError("options.source must not be a disposed Source.");if(void 0!==e.initInput&&!(e.initInput instanceof Yo))throw new TypeError("options.initInput, when provided, must be an Input.");void 0!==e.formatOptions&&((e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(`${t}, when provided, must be an object.`);if(void 0!==e.isobmff){if(!e.isobmff||"object"!==typeof e.isobmff)throw new TypeError(`${t}.isobmff, when provided, must be an object.`);if(void 0!==e.isobmff.resolveKeyId&&"function"!==typeof e.isobmff.resolveKeyId)throw new TypeError(`${t}.isobmff.resolveKeyId, when provided, must be a function.`)}if(void 0!==e.hls){if(!e.hls||"object"!==typeof e.hls)throw new TypeError(`${t}.hls, when provided, must be an object.`);if(void 0!==e.hls.offsetTimestampsByDateTime&&"boolean"!==typeof e.hls.offsetTimestampsByDateTime)throw new TypeError(`${t}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}})(e.formatOptions,"formatOptions"),this._formats=e.formats,this._initInput=e.initInput??null,this._formatOptions=e.formatOptions??{},e.source instanceof Os?this._rootRef=e.source.ref():this._rootRef=e.source,this._sourceRefs.push(this._rootRef)}get _rootSource(){return this._rootRef.source}async _getSourceUncached(e){j(this._rootSource instanceof zs);const t=await this._rootSource._resolveRequest(e);return this._emit("source",{source:t.source,request:e,isRoot:e.isRoot}),t}_getSourceCached(e,t=1){const i=this._sourceCache.find(i=>i.cacheGroup===t&&Us(i.request,e));if(i)return i.age++,Promise.resolve(i.sourceRef.source.ref());const r=this._sourceCachePromises.find(i=>i.cacheGroup===t&&Us(i.request,e));if(r)return r.promise.then(e=>e.sourceRef.source.ref());const a=(async()=>{const i=await this._getSourceUncached(e);if(et(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount)>=4){const e=tt(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount?e.age:1/0);j(-1!==e);const i=this._sourceCache[e];this._sourceCache.splice(e,1),i.sourceRef.free(),ye(this._sourceRefs,i.sourceRef)}this._sourceRefs.push(i);const r=this._sourceCachePromises.findIndex(t=>t.request===e);j(-1!==r),this._sourceCachePromises.splice(r,1);return{request:e,sourceRef:i,age:this._nextSourceCacheAge++,cacheGroup:t}})();return this._sourceCachePromises.push({request:e,cacheGroup:t,promise:a}),a.then(e=>{const t=e.sourceRef.source.ref();return this._sourceCache.push(e),t})}_getDemuxer(){return this._demuxerPromise??(this._demuxerPromise=(async()=>{this._reader=new ec(this._rootSource),this._emit("source",{source:this._rootSource,request:null,isRoot:!0});for(const e of this._formats){if(await e._canReadInput(this))return this._format=e,this._onFormatDetermined?.(e),e._createDemuxer(this)}throw new Jo})())}get source(){return this._rootSource}async getFormat(){return await this._getDemuxer(),j(this._format),this._format}async canRead(){try{return await this._getDemuxer(),!0}catch(e){if(e instanceof Jo)return!1;throw e}}async getFirstTimestamp(e){e??(e=await this.getTracks());const t=e.filter(e=>null!==e);if(0===t.length)return 0;const i=await Promise.all(t.map(e=>e._backing.getFirstPacket({metadataOnly:!0}))),r=Math.min(...i.map(e=>e?.timestamp??1/0));return r===1/0?0:r}async computeDuration(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e);if(0===i.length)return 0;const r=await Promise.all(i.map(e=>e.computeDuration(t)));return Math.max(...r)}async getDurationFromMetadata(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e),r=(await Promise.all(i.map(e=>e.getDurationFromMetadata(t)))).filter(e=>null!==e);return 0===r.length?null:Math.max(...r)}async getTracks(e){e&&(e=Vo(e));const t=(await this._getTrackBackings()).map(e=>this._wrapBackingAsTrack(e));return Ko(t,e)}async getVideoTracks(e){e&&(e=Vo(e));const t=(await this.getTracks()).filter(e=>e.isVideoTrack());return Ko(t,e)}async getAudioTracks(e){e&&(e=Vo(e));const t=(await this.getTracks()).filter(e=>e.isAudioTrack());return Ko(t,e)}async getPrimaryVideoTrack(e){e&&(e=Vo(e));const t=jo(e,{sortBy:async e=>[Ho((await e.getDisposition()).default),Ho(await e.hasPairableAudioTrack()),Ho(!(await e.hasOnlyKeyPackets())),Wo(await e.getBitrate())]});return(await this.getVideoTracks(t))[0]??null}async getPrimaryAudioTrack(e){e&&(e=Vo(e));const t=await this.getPrimaryVideoTrack(),i=jo(e,{sortBy:async e=>[Ho(!t||e.canBePairedWith(t)),Ho((await e.getDisposition()).default),Wo(await e.getBitrate())]});return(await this.getAudioTracks(i))[0]??null}async _getTrackBackings(){const e=await this._getDemuxer();return this._trackBackingsCache??(this._trackBackingsCache=await e.getTrackBackings())}_wrapBackingAsTrack(e){const t=this._backingToTrack.get(e);if(t)return t;const i="video"===e.getType()?new Uo(this,e):new qo(this,e);return this._backingToTrack.set(e,i),i}async getMimeType(){return(await this._getDemuxer()).getMimeType()}async getMetadataTags(){return(await this._getDemuxer()).getMetadataTags()}dispose(){if(!this._disposed){this._disposed=!0;for(const e of 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tc(r.bytes,r.view,r.offset,e,i):null}requestSliceRange(e,t,i){if(this.source._disposed)throw new Zo;if(e<0)return null;if(null!==this.fileSizeNonStrict)return this.requestSlice(e,Ie(this.fileSizeNonStrict-e,t,i));{const r=this.requestSlice(e,i),a=r=>r||(j(null!==this.fileSizeNonStrict),this.requestSlice(e,Ie(this.fileSizeNonStrict-e,t,i)));return Xe(r)?r.then(a):a(r)}}requestEntireFile(){if(null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);return(async()=>{const e=[];let t=0;for(;;){if(1===e.length&&null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);let i=this.requestSliceRange(t,0,1024);if(Xe(i)&&(i=await i),!i||0===i.length)break;const r=rc(i,i.length);e.push(r),t+=i.length}const i=new Uint8Array(t);let r=0;for(const a of e)i.set(a,r),r+=a.length;return new tc(i,J(i),0,0,t)})()}}class tc{constructor(e,t,i,r,a){this.bytes=e,this.view=t,this.offset=i,this.start=r,this.end=a,this.bufferPos=r-i}static tempFromBytes(e){return new tc(e,J(e),0,0,e.length)}get length(){return this.end-this.start}get filePos(){return this.offset+this.bufferPos}set filePos(e){this.bufferPos=e-this.offset}get remainingLength(){return Math.max(this.end-this.filePos,0)}skip(e){this.bufferPos+=e}slice(e,t=this.end-e){if(e<this.start||e+t>this.end)throw new RangeError("Slicing outside of original slice.");return new tc(this.bytes,this.view,this.offset,e,e+t)}}const ic=(e,t)=>{if(e.filePos<e.start||e.filePos+t>e.end)throw new RangeError(`Tried reading [${e.filePos}, ${e.filePos+t}), but slice is [${e.start}, ${e.end}). This is likely an internal error, please report it alongside the file that caused it.`)},rc=(e,t)=>{ic(e,t);const i=e.bytes.subarray(e.bufferPos,e.bufferPos+t);return e.bufferPos+=t,i},ac=e=>(ic(e,1),e.view.getUint8(e.bufferPos++)),sc=(e,t)=>{ic(e,2);const i=e.view.getUint16(e.bufferPos,t);return e.bufferPos+=2,i},nc=e=>{ic(e,2);const t=e.view.getUint16(e.bufferPos,!1);return e.bufferPos+=2,t},oc=e=>{ic(e,3);const t=Se(e.view,e.bufferPos,!1);return e.bufferPos+=3,t},cc=e=>{ic(e,2);const t=e.view.getInt16(e.bufferPos,!1);return e.bufferPos+=2,t},lc=(e,t)=>{ic(e,4);const i=e.view.getUint32(e.bufferPos,t);return e.bufferPos+=4,i},uc=e=>{ic(e,4);const t=e.view.getUint32(e.bufferPos,!1);return e.bufferPos+=4,t},hc=e=>{ic(e,4);const t=e.view.getUint32(e.bufferPos,!0);return e.bufferPos+=4,t},dc=e=>{ic(e,4);const t=e.view.getInt32(e.bufferPos,!1);return e.bufferPos+=4,t},fc=(e,t)=>{let i,r;return t?(i=lc(e,!0),r=lc(e,!0)):(r=lc(e,!1),i=lc(e,!1)),4294967296*r+i},mc=e=>4294967296*uc(e)+uc(e),pc=e=>4294967296*dc(e)+uc(e),gc=e=>{const t=hc(e),i=(e=>{ic(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},kc=e=>{ic(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},yc=e=>{ic(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},bc=(e,t)=>{ic(e,t);let i="";for(let r=0;r<t;r++)i+=String.fromCharCode(e.bytes[e.bufferPos++]);return i},wc=(e,t,i)=>Z.decode(rc(e,t)).split("\n").map(e=>e.trim()).filter(e=>e.length>0&&!i?.ignore?.(e));var Tc,Sc,vc,Pc;(Sc=Tc||(Tc={}))[Sc.Unsynchronisation=128]="Unsynchronisation",Sc[Sc.ExtendedHeader=64]="ExtendedHeader",Sc[Sc.ExperimentalIndicator=32]="ExperimentalIndicator",Sc[Sc.Footer=16]="Footer",(Pc=vc||(vc={}))[Pc.ISO_8859_1=0]="ISO_8859_1",Pc[Pc.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",Pc[Pc.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",Pc[Pc.UTF_8=3]="UTF_8";const Ic=128,xc=10,Cc=["Blues","Classic rock","Country","Dance","Disco","Funk","Grunge","Hip-hop","Jazz","Metal","New age","Oldies","Other","Pop","Rhythm and blues","Rap","Reggae","Rock","Techno","Industrial","Alternative","Ska","Death metal","Pranks","Soundtrack","Euro-techno","Ambient","Trip-hop","Vocal","Jazz & funk","Fusion","Trance","Classical","Instrumental","Acid","House","Game","Sound clip","Gospel","Noise","Alternative rock","Bass","Soul","Punk","Space","Meditative","Instrumental pop","Instrumental rock","Ethnic","Gothic","Darkwave","Techno-industrial","Electronic","Pop-folk","Eurodance","Dream","Southern rock","Comedy","Cult","Gangsta","Top 40","Christian rap","Pop/funk","Jungle music","Native US","Cabaret","New wave","Psychedelic","Rave","Showtunes","Trailer","Lo-fi","Tribal","Acid punk","Acid jazz","Polka","Retro","Musical","Rock 'n' roll","Hard rock","Folk","Folk rock","National folk","Swing","Fast fusion","Bebop","Latin","Revival","Celtic","Bluegrass","Avantgarde","Gothic rock","Progressive rock","Psychedelic rock","Symphonic rock","Slow rock","Big band","Chorus","Easy listening","Acoustic","Humour","Speech","Chanson","Opera","Chamber music","Sonata","Symphony","Booty bass","Primus","Porn groove","Satire","Slow jam","Club","Tango","Samba","Folklore","Ballad","Power ballad","Rhythmic Soul","Freestyle","Duet","Punk rock","Drum solo","A cappella","Euro-house","Dance hall","Goa music","Drum & bass","Club-house","Hardcore techno","Terror","Indie","Britpop","Negerpunk","Polsk punk","Beat","Christian gangsta rap","Heavy metal","Black metal","Crossover","Contemporary Christian","Christian rock","Merengue","Salsa","Thrash metal","Anime","Jpop","Synthpop","Christmas","Art rock","Baroque","Bhangra","Big beat","Breakbeat","Chillout","Downtempo","Dub","EBM","Eclectic","Electro","Electroclash","Emo","Experimental","Garage","Global","IDM","Illbient","Industro-Goth","Jam Band","Krautrock","Leftfield","Lounge","Math rock","New romantic","Nu-breakz","Post-punk","Post-rock","Psytrance","Shoegaze","Space rock","Trop rock","World music","Neoclassical","Audiobook","Audio theatre","Neue Deutsche Welle","Podcast","Indie rock","G-Funk","Dubstep","Garage rock","Psybient"],Bc=(e,t)=>{var i;const r=e.filePos;t.raw??(t.raw={}),(i=t.raw).TAG??(i.TAG=rc(e,Ic-3)),e.filePos=r;const a=Ec(e,30);a&&(t.title??(t.title=a));const s=Ec(e,30);s&&(t.artist??(t.artist=s));const n=Ec(e,30);n&&(t.album??(t.album=n));const o=Ec(e,4),c=Number.parseInt(o,10);Number.isInteger(c)&&c>0&&(t.date??(t.date=new Date(String(c))));const l=rc(e,30);let u;if(0===l[28]&&0!==l[29]){const i=l[29];i>0&&(t.trackNumber??(t.trackNumber=i)),e.skip(-30),u=Ec(e,28),e.skip(2)}else e.skip(-30),u=Ec(e,30);u&&(t.comment??(t.comment=u));const h=ac(e);h<Cc.length&&(t.genre??(t.genre=Cc[h]))},Ec=(e,t)=>{const i=rc(e,t),r=$e(i.indexOf(0),i.length),a=i.subarray(0,r);let s="";for(let n=0;n<a.length;n++)s+=String.fromCharCode(a[n]);return s.trimEnd()},_c=e=>{const t=e.filePos,i=bc(e,3),r=ac(e),a=ac(e),s=ac(e),n=uc(e);if("ID3"!==i||255===r||255===a||0!==(2155905152&n))return e.filePos=t,null;let o=Ji(n);return s&Tc.Footer&&(o+=xc),{majorVersion:r,revision:a,flags:s,size:o}},Rc=(e,t,i)=>{var r,a,s,n,o;if(![2,3,4].includes(t.majorVersion))return void ct._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Tc.Footer?t.size-xc:t.size,l=rc(e,c),u=new Fc(t,l);if(t.flags&Tc.Unsynchronisation&&3===t.majorVersion&&u.ununsynchronizeAll(),t.flags&Tc.ExtendedHeader){const e=u.readU32();3===t.majorVersion?u.pos+=e:u.pos+=e-4}for(;u.pos<=u.bytes.length-u.frameHeaderSize();){const e=u.readId3V2Frame();if(!e)break;const c=u.pos,l=u.pos+e.size;let h=!1,d=!1,f=!1;if(3===t.majorVersion?(h=!!(64&e.flags),d=!!(128&e.flags)):4===t.majorVersion&&(h=!!(4&e.flags),d=!!(8&e.flags),f=!!(2&e.flags)||!!(t.flags&Tc.Unsynchronisation)),h)ct._warn(`Skipping encrypted ID3v2 frame ${e.id}`),u.pos=l;else if(d)ct._warn(`Skipping compressed ID3v2 frame ${e.id}`),u.pos=l;else{if(f&&u.ununsynchronizeRegion(u.pos,l),i.raw??(i.raw={}),"TXXX"===e.id){const e=(r=i.raw).TXXX??(r.TXXX={}),t=u.readId3V2TextEncoding(),a=u.readId3V2Text(t,l),s=u.readId3V2Text(t,l);e[a]??(e[a]=s)}else"T"===e.id[0]?(a=i.raw)[s=e.id]??(a[s]=u.readId3V2EncodingAndText(l)):(n=i.raw)[o=e.id]??(n[o]=u.readBytes(e.size));switch(u.pos=c,e.id){case"TIT2":case"TT2":i.title??(i.title=u.readId3V2EncodingAndText(l));break;case"TIT3":case"TT3":i.description??(i.description=u.readId3V2EncodingAndText(l));break;case"TPE1":case"TP1":i.artist??(i.artist=u.readId3V2EncodingAndText(l));break;case"TALB":case"TAL":i.album??(i.album=u.readId3V2EncodingAndText(l));break;case"TPE2":case"TP2":i.albumArtist??(i.albumArtist=u.readId3V2EncodingAndText(l));break;case"TRCK":case"TRK":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.trackNumber??(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.tracksTotal??(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.discNumber??(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.discsTotal??(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=u.readId3V2EncodingAndText(l);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==Cc[e]){i.genre??(i.genre=Cc[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==Cc[e]){i.genre??(i.genre=Cc[e]);break}}i.genre??(i.genre=e)}break;case"TDRC":case"TDAT":{const e=u.readId3V2EncodingAndText(l),t=new Date(e);Number.isNaN(t.getTime())||(i.date??(i.date=t))}break;case"TYER":case"TYE":{const e=u.readId3V2EncodingAndText(l),t=Number.parseInt(e,10);Number.isInteger(t)&&(i.date??(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.lyrics??(i.lyrics=u.readId3V2Text(e,l))}break;case"COMM":case"COM":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.comment??(i.comment=u.readId3V2Text(e,l))}break;case"APIC":case"PIC":{const e=u.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=u.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=u.readId3V2Text(e,l);const a=u.readU8(),s=u.readId3V2Text(e,l).trimEnd(),n=l-u.pos;if(n>=0){const e=u.readBytes(n);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===a?"coverFront":4===a?"coverBack":"unknown",description:s})}}break;default:u.pos+=e.size}u.pos=l}}};class Fc{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 2===this.header.majorVersion?6:10}ununsynchronizeAll(){const e=[];for(let t=0;t<this.bytes.length;t++){const i=this.bytes[t];if(e.push(i),255===i&&t!==this.bytes.length-1){0===this.bytes[t]&&t++}}this.bytes=new Uint8Array(e),this.view=new DataView(this.bytes.buffer)}ununsynchronizeRegion(e,t){const i=[];for(let s=e;s<t;s++){const e=this.bytes[s];if(i.push(e),255===e&&s!==t-1){0===this.bytes[s+1]&&s++}}const r=this.bytes.subarray(0,e),a=this.bytes.subarray(t);this.bytes=new Uint8Array(r.length+i.length+a.length),this.bytes.set(r,0),this.bytes.set(i,r.length),this.bytes.set(a,r.length+i.length),this.view=new DataView(this.bytes.buffer)}readBytes(e){const t=this.bytes.subarray(this.pos,this.pos+e);return this.pos+=e,t}readU8(){const e=this.view.getUint8(this.pos);return this.pos+=1,e}readU16(){const e=this.view.getUint16(this.pos,!1);return this.pos+=2,e}readU24(){const e=this.view.getUint16(this.pos,!1),t=this.view.getUint8(this.pos+2);return this.pos+=3,256*e+t}readU32(){const e=this.view.getUint32(this.pos,!1);return this.pos+=4,e}readAscii(e){let t="";for(let i=0;i<e;i++)t+=String.fromCharCode(this.view.getUint8(this.pos+i));return this.pos+=e,t}readId3V2Frame(){if(2===this.header.majorVersion){const e=this.readAscii(3);if("\0\0\0"===e)return null;return{id:e,size:this.readU24(),flags:0}}{const e=this.readAscii(4);if("\0\0\0\0"===e)return null;const t=this.readU32();let i=4===this.header.majorVersion?Ji(t):t;const r=this.readU16(),a=this.pos,s=e=>{const t=this.pos+e;if(t>this.bytes.length)return!1;if(t<=this.bytes.length-this.frameHeaderSize()){this.pos+=e;const t=this.readAscii(4);if("\0\0\0\0"!==t&&!/[0-9A-Z]{4}/.test(t))return!1}return!0};if(!s(i)){const e=4===this.header.majorVersion?t:Ji(t);s(e)&&(i=e)}return this.pos=a,{id:e,size:i,flags:r}}}readId3V2TextEncoding(){const e=this.readU8();if(e>3)throw new Error(`Unsupported text encoding: ${e}`);return e}readId3V2Text(e,t){const i=this.pos,r=this.readBytes(t-this.pos);switch(e){case vc.ISO_8859_1:{let e="";for(let t=0;t<r.length;t++){const a=r[t];if(0===a){this.pos=i+t+1;break}e+=String.fromCharCode(a)}return e}case vc.UTF_16_WITH_BOM:if(255===r[0]&&254===r[1]){const e=new TextDecoder("utf-16le"),t=$e(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}if(254===r[0]&&255===r[1]){const e=new TextDecoder("utf-16be"),t=$e(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}{const e=$e(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),Z.decode(r.subarray(0,e))}case vc.UTF_16_BE_NO_BOM:{const e=new TextDecoder("utf-16be"),t=$e(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(0,t))}case vc.UTF_8:{const e=$e(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),Z.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class Ac{constructor(e){this.host=e,this.closed=!1,this.resumes=new WeakMap}ensure(e){if(this.closed)return null;if(this.host.audioContext)return this.host.audioContext;const t=window.AudioContext||window.webkitAudioContext;let i;try{i=new t({sampleRate:e})}catch{i=new t}if(this.closed)return i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null;let r=null;try{r=i.createGain(),r.connect(i.destination);const e=this.host.muted?0:this.host.volume;return r.gain.value=e*e,this.closed?(r.disconnect(),i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null):(this.host.audioContext=i,this.host.gainNode=r,i)}catch(a){try{r?.disconnect()}catch(s){console.warn("MediaBunny gain setup cleanup:",s)}throw i.close().catch(e=>console.warn("MediaBunny context setup cleanup:",e)),a}}updateGain(){if(!this.host.gainNode)return;const e=this.host.muted?0:this.host.volume;this.host.gainNode.gain.value=e*e}resume(e){const t=this.resumes.get(e);if(t)return t;const i=e.resume();this.resumes.set(e,i);const r=()=>{this.resumes.get(e)===i&&this.resumes.delete(e)};return i.then(r,r),i}destroy(){if(this.closed)return;this.closed=!0;const{audioContext:e,gainNode:t}=this.host;this.host.audioContext=null,this.host.gainNode=null;try{t?.disconnect()}finally{e&&e.close().catch(e=>console.warn("MediaBunny context close error:",e))}}}class Mc{constructor(e){this.host=e}release(e,t){this.host.queuedNodes.delete(e),e.onended=null;let i,r=!1;try{t&&e.stop()}catch(a){r=!0,i=a}try{e.disconnect()}catch(a){r||(r=!0,i=a)}if(r)throw i}stop(){const e=[];for(const i of[...this.host.queuedNodes])try{this.release(i,!0)}catch(t){e.push(t)}if(e.length)throw e[0]}schedule({buffer:e,timestamp:t}){const i=this.host.audioContext,r=this.host.gainNode;if(!i||!r)return;const a=function(e,t,i,r){const a=e.audioContextStartTime+(t-e.playbackTimeAtStart)/e.playbackRate,s=(a+i/e.playbackRate-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;return{startAt:Math.max(a,r),offset:a<r?(r-a)*e.playbackRate:null,endMediaTime:s}}(this.host,t,e.duration,i.currentTime);if(null!==a.offset&&a.offset>=e.duration)return;const s=i.createBufferSource();this.host.queuedNodes.add(s);try{s.buffer=e,s.connect(r),s.playbackRate.value=this.host.playbackRate,s.onended=()=>{if(this.host.queuedNodes.has(s))try{this.release(s,!1)}catch(e){console.warn("MediaBunny ended node cleanup:",e)}},null===a.offset?s.start(a.startAt):s.start(a.startAt,a.offset),this.host.latestScheduledEndTime=Math.max(this.host.latestScheduledEndTime,a.endMediaTime)}catch(n){try{this.release(s,!0)}catch(o){console.warn("MediaBunny audio node cleanup:",o)}throw n}}}const Dc=Symbol("cancelled");class Nc{constructor(){this.cancelled=!1,this.waits=new Set,this.timers=new Map}wait(e){return new Promise((t,i)=>{const r=()=>t(Dc);this.cancelled?r():this.waits.add(r),e.then(e=>{this.waits.delete(r),t(e)},e=>{this.waits.delete(r),i(e)})})}delay(e){return this.cancelled?Promise.resolve(!1):new Promise(t=>{const i=setTimeout(()=>{this.timers.delete(i),t(!this.cancelled)},e);this.timers.set(i,t)})}cancel(){if(!this.cancelled){this.cancelled=!0;for(const e of this.waits)e();this.waits.clear();for(const[e,t]of this.timers)clearTimeout(e),t(!1);this.timers.clear()}}}function Oc(e,t,i){for(const r of i){if(!t())return;e.emit(r)}}class Lc{constructor(e,t,i){this.host=e,this.contexts=t,this.nodes=i,this.task=null,this.closing=new WeakMap}async stopIterator(){const e=this.host.audioIterator;if(this.host.audioIterator=null,!e)return;let t=this.closing.get(e);t||(t=Promise.resolve().then(()=>e.return()).then(()=>{}),this.closing.set(e,t)),await t}cancel(){this.task?.cancel(),this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e))}async run(e){if(this.host.asyncId!==e)return;this.cancel();const t=this.host.audioSink,i=this.host.audioContext;if(!t||!i||this.host.paused||this.host.asyncId!==e)return;const r=new Nc;this.task=r;let a=null;const s=()=>!r.cancelled&&this.task===r&&this.host.asyncId===e&&!this.host.paused&&this.host.audioContext===i&&(!a||this.host.audioIterator===a);try{for(a=t.buffers(this.host.currentTime),this.host.audioIterator=a;s();){const e=[];let t=!1;for(let i=0;i<16;i++){const i=await r.wait(a.next());if(i===Dc||!s())return;if(i.done){t=!0;break}e.push(i.value)}if(e.length&&"suspended"===i.state){if(await r.wait(this.contexts.resume(i))===Dc||!s())return;Oc(this.host.events,s,["canplay","playing"])}for(const i of e){if(!s())return;this.nodes.schedule(i)}if(t)return;if(!(await r.delay(0))||!s())return;for(;this.host.latestScheduledEndTime-this.host.currentTime>1;)if(!(await r.delay(50))||!s())return}}catch(n){if(s())throw n}finally{r.cancel(),this.task===r&&(this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e)))}}}class zc{constructor(e,h){N(this,u),N(this,t,!1),N(this,i,0),N(this,r),N(this,a),N(this,s),N(this,n,null),N(this,o,null),N(this,c,null),N(this,l),this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set,O(this,r,new Ac(this)),O(this,a,new Mc(this)),O(this,s,new Lc(this,D(this,r),D(this,a))),O(this,l,h)}get currentTime(){return(e=this).paused||!e.audioContext?e.playbackTimeAtStart:(e.audioContext.currentTime-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;var e}ensureAudioContext(e){D(this,r).ensure(e)}updateGain(){D(this,r).updateGain()}stopQueuedNodes(){D(this,a).stop()}async stopIterator(){await D(this,s).stopIterator()}handleNoAudioTrack(){D(this,t)||(this.audioSink=null,this.ensureAudioContext())}cancelPending(){z(this,i)._++;try{this.pause()}finally{O(this,c,null),this.input=null,this.audioSink=null}}async load(e,r){if(D(this,t))return;this.cancelPending();const a=D(this,i);this.playbackTimeAtStart=0,this.audioContextStartTime=0,this.latestScheduledEndTime=0;const s=Promise.resolve().then(()=>L(this,u,h).call(this,e,a,r));O(this,c,s);try{await s}finally{D(this,c)===s&&O(this,c,null)}}async runIterator(e){D(this,t)||await D(this,s).run(e)}async play(){if(D(this,t))return;if(D(this,o))return D(this,o);if(!this.paused)return;const e=new Nc;O(this,n,e);const r=D(this,i),a=L(this,u,f).call(this,e,r);O(this,o,a);try{await a}finally{D(this,n)===e&&(O(this,n,null),O(this,o,null))}}pause(){this.paused||(this.playbackTimeAtStart=this.currentTime),this.paused=!0,this.asyncId++,D(this,n)?.cancel(),O(this,n,null),O(this,o,null),D(this,s).cancel(),this.stopQueuedNodes()}async seek(e){if(D(this,t))return;const i=!this.paused;D(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=this.audioContext?.currentTime??0,this.latestScheduledEndTime=this.playbackTimeAtStart;const r=++this.asyncId;i&&L(this,u,d).call(this,r)}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){if(D(this,t)||e===this.playbackRate)return;const i=this.currentTime;D(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=i,this.audioContextStartTime=this.audioContext?.currentTime??0,this.playbackRate=e,this.latestScheduledEndTime=i;const r=++this.asyncId;this.paused||L(this,u,d).call(this,r)}destroy(){if(D(this,t))return;O(this,t,!0),z(this,i)._++;const e=[];for(const t of[()=>this.pause(),()=>D(this,r).destroy()])try{t()}catch(a){e.push(a)}if(this.input=null,this.audioSink=null,O(this,c,null),e.length)throw e[0]}}t=new WeakMap,i=new WeakMap,r=new WeakMap,a=new WeakMap,s=new WeakMap,n=new WeakMap,o=new WeakMap,c=new WeakMap,l=new WeakMap,u=new WeakSet,h=async function({input:e,audioTrack:r,duration:a},s,n){const o=()=>!D(this,t)&&D(this,i)===s;if(o()){this.input=e,this.duration=a;try{const e=r&&null!==r.codec&&await r.canDecode();if(!o())return;if(e){if(this.ensureAudioContext(r.sampleRate),!o())return;this.audioSink=new No(r)}else this.handleNoAudioTrack();o()&&n?.()}catch(c){if(o())throw c}}},d=function(e){this.runIterator(e).catch(i=>{if(!D(this,t)&&e===this.asyncId){try{this.pause()}catch(r){console.warn("MediaBunny audio failure cleanup:",r)}try{D(this,l)?D(this,l).call(this,i):this.events.emit("error",i)}catch(r){console.warn("MediaBunny audio error listener:",r)}}})},f=async function(e,a){const s=()=>!D(this,t)&&!e.cancelled&&D(this,i)===a;try{const t=D(this,r).ensure();if(!t||!s())return;if("suspended"===t.state){if(await e.wait(D(this,r).resume(t))===Dc||!s())return}if(D(this,c)){if(await e.wait(D(this,c))===Dc||!s())return}this.audioContextStartTime=t.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1,L(this,u,d).call(this,++this.asyncId)}catch(n){if(s())throw n}};const Uc=new WeakMap;async function qc(e,t,i){const{input:r,loadSeq:a}=e;if(!e.media?.isHls||!r||e.destroyed)return;const s={};Uc.set(e,s);const n=()=>!e.destroyed&&e.loadSeq===a&&e.input===r&&Uc.get(e)===s;for(;n();){const a=e.media;if(!a?.isHls)return;let s;try{s=await i(r,a,t,n)}catch(o){if(!n())return;if(e.media===a)throw o;continue}if(!n())return;if(e.media===a){if(s)try{await e.replaceTracks(s)}catch(o){if(n())throw o}return}}}async function Wc(e,t,i,r){const a=await e.getVideoTracks();if(!r())return null;const s="auto"===i?await e.getPrimaryVideoTrack():a.find(e=>e.id===i)??t.videoTrack;if(!r()||!s)return null;let n=t.audioTrack,o=t.audioMode;return n&&s.canBePairedWith(n)||(n=await s.getPrimaryPairableAudioTrack(),o="auto"),{videoTrack:s,audioTrack:n,videoMode:"auto"===i?"auto":"manual",audioMode:o}}async function Hc(e,t,i,r){const a=await e.getAudioTracks();if(!r())return null;const s="auto"===i?t.videoTrack?await t.videoTrack.getPrimaryPairableAudioTrack():await e.getPrimaryAudioTrack():a.find(e=>e.id===i)??t.audioTrack;if(!r()||!s)return null;let n=t.videoTrack,o=t.videoMode;return n&&s.canBePairedWith(n)||(n=await s.getPrimaryPairableVideoTrack(),o="auto"),{videoTrack:n,audioTrack:s,videoMode:o,audioMode:"auto"===i?"auto":"manual"}}async function Vc(e){return await e.getAverageBitrate()??await e.getBitrate()??0}const jc=/\.m3u8(?:$|[?#])/i;function Kc(e){return"string"===typeof e&&jc.test(e)}function Xc(e){const t=function(e){return"string"===typeof e?new Ks(e):e instanceof Blob?new Hs(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new Gs(e):e??null}(e);return t?new Yo({source:t,formats:Kc(e)?On:Nn}):null}class $c{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){return this.controller?.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}async wait(e,t){try{await Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,e?.dispose()}cancel(){if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),this.controller?.abort(),this.disposeInput()}}}async function Gc({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),a=t||i,s=Boolean(a&&await a.isLive());let n=Number.NaN;return r.length>0&&(n=await e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==n||s||(n=await e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:n??Number.NaN}function Qc(){let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}}class Yc{constructor(e){this.host=e,this.wanted=!1,this.playing=null,this.seeking=null}operation(){return{...Qc(),source:this.host.loadSeq,complete:Qc()}}current(e,t){return!this.host.destroyed&&e.source===this.host.loadSeq&&this[t]===e}cancelPlay(){const e=this.playing;this.playing=null,e?.resolve()}invalidate(){this.cancelPlay(),this.wanted=!1;const e=this.seeking;this.seeking=null,e?.complete.resolve(),e?.resolve(),this.host.seeking=!1}ended(){this.wanted=!1,this.cancelPlay()}stop(){this.host.paused||(this.host.paused=!0,this.stopEngines(),this.host.events.emit("pause"))}stopEngines(){const e=[];for(const i of[()=>this.host.audio.pause(),()=>this.host.video.stop()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}pause(){this.wanted=!1,this.cancelPlay(),this.stop()}play(){if(this.host.destroyed)return Promise.resolve();if(this.wanted=!0,this.playing)return this.playing.promise;if(this.host.ended)return this.seek(0,!0);if(!this.host.paused&&!this.seeking)return Promise.resolve();const e=this.operation();return this.playing=e,this.runPlay(e).then(e.resolve,e.reject),e.promise}async runPlay(e){const t=()=>this.current(e,"playing")&&this.wanted;try{for(;this.seeking;)if(await this.seeking.complete.promise,!t())return;if(!t())return;if(this.host.paused=!1,await this.host.audio.play(),!t())return void(this.wanted&&!this.host.destroyed||this.host.audio.pause());this.host.video.start(this.host.audio),Oc(this.host.events,t,["play","playing"])}catch(i){if(!t())return;this.wanted=!1,this.host.paused=!0;try{this.stopEngines()}catch(r){console.warn("MediaBunny play cleanup error:",r)}throw i}finally{this.playing===e&&(this.playing=null)}}seek(e,t){return this.position(async t=>{const i=this.host.audio.seek(e),r=t()?this.host.video.seek(e):Promise.resolve();await Promise.all([i,r])},["seeked"],!1,t)}replace(e,t){return this.position(async i=>{e.duration=await Gc(e),i()&&(this.host.media=e,await Promise.all([this.host.video.load(e),this.host.audio.load(e)]),i()&&(await Promise.all([this.host.video.seek(t),this.host.audio.seek(t)]),i()&&(this.host.readyState=4,this.host.networkState=1)))},["loadedmetadata","durationchange","progress","loadeddata","canplay","canplaythrough","seeked"],!0)}position(e,t,i,r){if(this.host.destroyed)return Promise.resolve();this.wanted=r??(this.seeking?this.wanted:!this.host.paused),this.cancelPlay();const a=this.seeking,s=this.operation();return this.seeking=s,a?.complete.resolve(),a?.resolve(),this.runPosition(s,e,t,i).then(s.resolve,s.reject),s.promise}async runPosition(e,t,i,r){const a=()=>this.current(e,"seeking");let s=!1;try{if(r&&this.stop(),!a())return;if(this.host.ended=!1,this.host.seeking=!0,Oc(this.host.events,a,["seeking","waiting"]),!a())return;if(r||this.stop(),!a())return;if(await t(a),!a())return;if(this.host.seeking=!1,e.complete.resolve(),Oc(this.host.events,a,i),!a())return;this.seeking=null,s=this.wanted}catch(n){if(!a())return;throw this.host.seeking=!1,this.wanted=!1,this.cancelPlay(),this.host.reportError(n),n}finally{e.complete.resolve(),this.seeking===e&&(this.seeking=null)}s&&await this.play()}}const Jc=new WeakMap,Zc=new WeakMap;function el(e){const t=Zc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.next()).then(e=>e.value??null);Zc.set(e,i);const r=()=>{Zc.get(e)===i&&Zc.delete(e)};return i.then(r,r),i}function tl(e,t,i,r,a){const s=i?Math.max(.06,r/Math.max(1,a)):0;return i&&e<t-s?"skip":e<=t+s?"draw":"queue"}class il{constructor(){this.image=null}cancel(){this.image&&(this.image.onload=null,this.image.onerror=null,this.image=null)}draw(e,t,i,r){this.cancel();const a=new Image;this.image=a,a.onload=()=>{if(this.image===a&&t()){this.cancel();try{i(a)}catch(e){r(e)}}},a.onerror=()=>{this.image===a&&this.cancel()},a.src=e}}class rl{constructor(e,t,i,r){this.host=e,this.ready=t,this.draw=i,this.failure=r,this.stopped=!1,this.closed=!1,this.scheduled=null,this.fetching=null}current(e){return!this.closed&&!this.stopped&&this.host.asyncId===e}async update(e){const t=this.host.videoIterator;if(!t||!this.ready()||!this.current(e)||this.host.isFetching)return;const i={};this.fetching=i,this.host.isFetching=!0;const r=()=>this.current(e)&&this.host.videoIterator===t;try{for(;r();){const e=await el(t);if(!r()||!e)return;const i=this.host.audioClock?.currentTime;if(void 0===i)return;const a=tl(e.timestamp,i,this.host.dropLateFrames,this.host.avSyncTolerance,this.host.playbackRate);if("skip"!==a){if("draw"!==a)return void(this.host.nextFrame=e);this.draw(e)}}}catch(a){if(r())throw a}finally{this.fetching===i&&(this.fetching=null,this.host.isFetching=!1)}}request(e){this.update(e).catch(t=>{this.current(e)&&(this.stop(),this.report(t))})}report(e){try{this.failure(e)}catch(t){console.warn("MediaBunny video error listener:",t)}}cancelFrame(){null!==this.scheduled&&(cancelAnimationFrame(this.scheduled),this.scheduled=null)}schedule(e){if(!this.current(e))return;this.cancelFrame();const t=requestAnimationFrame(()=>{if(this.scheduled===t&&this.current(e)){this.scheduled=null;try{this.render()}catch(i){this.stop(),this.report(i)}}});this.scheduled=t,this.host.rafId=t}render(){const e=this.host.asyncId,t=()=>this.current(e);if(!t()||!this.host.audioClock)return;const i=this.host.audioClock.currentTime,r=Date.now();if(r-this.host.lastTimeUpdate>=this.host.timeupdateInterval){if(this.host.events.emit("timeupdate"),!t())return;this.host.lastTimeUpdate=r}if(this.ready()){if(Number.isFinite(this.host.duration)&&i>=this.host.duration){this.stop(),this.host.stalled=!1;const e=this.host.asyncId;return void Oc(this.host.events,()=>!this.closed&&this.host.asyncId===e,["ended","pause","canplay"])}if(this.host.nextFrame&&this.host.nextFrame.timestamp<=i){if(this.draw(this.host.nextFrame),this.host.nextFrame=null,this.request(e),this.host.stalled){if(Oc(this.host.events,t,["canplay","playing"]),!t())return;this.host.stalled=!1}}else this.host.nextFrame||(this.request(e),Number.isFinite(this.host.duration)&&i<this.host.duration&&!this.host.stalled&&(this.host.stalled=!0,this.host.events.emit("waiting")));this.schedule(e)}else this.schedule(e)}start(e){this.closed||(this.stop(),this.stopped=!1,this.host.audioClock=e,this.host.stalled=!1,this.host.nextFrame||this.request(this.host.asyncId),this.schedule(this.host.asyncId))}stop(){this.stopped=!0,this.host.asyncId++,this.cancelFrame(),this.fetching=null,this.host.isFetching=!1}destroy(){this.closed||(this.stop(),this.closed=!0)}}class al{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:a=.12,dropLateFrames:s=!1,poster:n="",preflightRange:o=!1,onError:c}){N(this,P),N(this,m,0),N(this,p,0),N(this,g,null),N(this,k,null),N(this,y,null),N(this,b,!1),N(this,w,!1),N(this,T,new il),N(this,S),N(this,v),this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=a,this.dropLateFrames=s,this.poster=n,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1,O(this,v,c),O(this,S,new rl(this,()=>!D(this,w),e=>L(this,P,E).call(this,e,!0),e=>L(this,P,C).call(this,e)))}async preflight(e,t,i){return async function(e,t,i,r,a=()=>!0){if(r?.aborted||!a())return!1;if(!t||"string"!==typeof e||Kc(e))return!0;try{const t=await fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if(r?.aborted||!a())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!(r?.aborted||!a())&&(console.warn("Preflight check failed:",s),!0)}}(e,this.preflightRange,this.events,t,i)}drawPoster(){if(D(this,b)||!this.poster||this.posterDrawn)return;const e=D(this,m);D(this,T).draw(this.poster,()=>L(this,P,I).call(this,e),e=>{this.clear(),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,L(this,P,x).call(this).drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e=>L(this,P,C).call(this,e))}async stopIterator(){const e=this.videoIterator;this.videoIterator=null,this.nextFrame=null,await function(e){if(!e)return Promise.resolve();const t=Jc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.return()).then(()=>{});return Jc.set(e,i),i}(e)}clear(){L(this,P,x).call(this).clearRect(0,0,this.canvas.width,this.canvas.height)}cancelPending(){z(this,m)._++,z(this,p)._++,this.stop(),L(this,P,B).call(this),D(this,T).cancel(),O(this,w,!1),O(this,g,null),O(this,k,null),O(this,y,null),this.videoSink=null,this.input=null}async load(e,t){if(D(this,b))return;this.cancelPending();const i=D(this,m),r=D(this,p);O(this,w,!0);const a=Promise.resolve().then(()=>L(this,P,_).call(this,e,i,r,t));O(this,g,a);try{await a}finally{D(this,g)===a&&O(this,g,null)}}handleNoVideoTrack(){D(this,b)||(this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster())}async resetIterator(e){if(D(this,b))return;const t=D(this,m),i=++z(this,p)._,r=D(this,g);this.stop(),D(this,T).cancel(),O(this,w,!0);try{r&&await r,await L(this,P,R).call(this,e,t,i)}catch(a){if(L(this,P,I).call(this,t)&&D(this,p)===i)throw L(this,P,B).call(this),a}finally{L(this,P,I).call(this,t)&&D(this,p)===i&&O(this,w,!1)}}async updateNextFrame(e){await D(this,S).update(e)}render(){D(this,S).render()}start(e){D(this,S).start(e)}stop(){D(this,S).stop()}async seek(e){await this.resetIterator(e)}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){D(this,b)||(O(this,b,!0),z(this,m)._++,D(this,S).destroy(),D(this,T).cancel(),L(this,P,B).call(this),this.posterDrawn=!1,O(this,k,null),O(this,y,null),this.videoSink=null,this.input=null,this.audioClock=null)}}m=new WeakMap,p=new WeakMap,g=new WeakMap,k=new WeakMap,y=new WeakMap,b=new WeakMap,w=new WeakMap,T=new WeakMap,S=new WeakMap,v=new WeakMap,P=new WeakSet,I=function(e){return!D(this,b)&&D(this,m)===e},x=function(){if(!this.ctx)throw new Error("Canvas 2D context is unavailable.");return this.ctx},C=function(e){D(this,b)||(L(this,P,B).call(this),D(this,v)?D(this,v).call(this,e):this.events.emit("error",e))},B=function(){this.stopIterator().catch(e=>console.warn("MediaBunny iterator cleanup error:",e))},E=function(e,t){D(this,T).cancel(),t&&this.clear(),L(this,P,x).call(this).drawImage(e.canvas,0,0)},_=async function(e,t,i,r){if(L(this,P,I).call(this,t))try{this.clear(),this.posterDrawn=!1;const{input:a,videoTrack:s,duration:n}=e;if(this.input=a,this.duration=n,!s)return this.handleNoVideoTrack(),void r?.();const o=null!==s.codec&&await s.canDecode();if(!L(this,P,I).call(this,t))return;if(!o)return this.handleNoVideoTrack(),void r?.();const c=await s.canBeTransparent();if(!L(this,P,I).call(this,t))return;O(this,k,()=>new Fo(s,{poolSize:2,fit:"contain",alpha:c})),this.videoSink=D(this,k).call(this),this.width=s.displayWidth,this.height=s.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,r?.(),L(this,P,I).call(this,t)&&await L(this,P,R).call(this,0,t,i)}catch(a){if(L(this,P,I).call(this,t))throw L(this,P,B).call(this),a}finally{L(this,P,I).call(this,t)&&D(this,p)===i&&O(this,w,!1)}},R=async function(e,t,i){if(!L(this,P,I).call(this,t)||D(this,p)!==i)return;L(this,P,B).call(this),D(this,k)&&this.videoSink===D(this,y)&&(this.videoSink=D(this,k).call(this));const r=this.videoSink;if(!r||!L(this,P,I).call(this,t))return;O(this,y,r);const a=r.canvases(e);this.videoIterator=a;const s=()=>L(this,P,I).call(this,t)&&D(this,p)===i&&this.videoIterator===a,n=await el(a);if(!s())return;const o=await el(a);s()&&(this.nextFrame=o,n?L(this,P,E).call(this,n,!1):this.drawPoster())};class sl{constructor({canvas:e,ctx:t,events:i,option:r={}}){N(this,F),this.events=i,this.option=r,this.audio=new zc(i,e=>{try{this.pause()}catch(t){console.warn("MediaBunny audio coordinator cleanup:",t)}this.reportError(e)}),this.video=new al({canvas:e,ctx:t,events:i,timeupdateInterval:r.timeupdateInterval??250,avSyncTolerance:r.avSyncTolerance??.12,dropLateFrames:r.dropLateFrames??!1,poster:r.poster??"",preflightRange:r.preflightRange??!1,onError:e=>{try{this.pause()}catch(t){console.warn("MediaBunny video failure cleanup:",t)}this.reportError(e)}}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,O(this,F,new Yc(this)),i.addEventListener("ended",()=>{this.destroyed||(this.ended=!0,this.paused=!0,D(this,F).ended(),this.audio.pause())})}async load(e){if(this.destroyed)return;const t=++this.loadSeq;if(D(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),this.loadSession?.cancel(),t!==this.loadSeq||this.destroyed)return;if(this.pause(),t!==this.loadSeq||this.destroyed)return;this.disposeInput();const i=new $c;this.loadSession=i,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,i.defer(()=>this.events.emit("waiting")),i.defer(()=>this.events.emit("loadstart"));const r=Number.isFinite(this.option.loadTimeout)?this.option.loadTimeout??0:0;try{await i.wait(this.performLoad(e,t,i),r)}catch(a){if(t!==this.loadSeq)return;const e=++this.loadSeq;if(D(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),i.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.reportError(a)}}async performLoad(e,t,i=this.loadSession){const r=()=>!this.destroyed&&t===this.loadSeq;if(!i||!(await this.video.preflight(e,i.signal,r))||!r())return;const a=Xc(e);if(!a)return this.video.handleNoVideoTrack(),void(r()&&this.audio.handleNoAudioTrack());i.own(a);const s=await async function(e,t){const i=await e.getPrimaryVideoTrack(),r=i?await i.getPrimaryPairableAudioTrack():await e.getPrimaryAudioTrack(),a=await Gc({input:e,videoTrack:i,audioTrack:r}),s=i||r,n=Kc(t);return{input:e,videoTrack:i,audioTrack:r,duration:a,isLive:!Number.isFinite(a)&&Boolean(s&&await s.isLive()),isHls:n,videoMode:n?"auto":"manual",audioMode:n?"auto":"manual"}}(a,e);if(!r())return;if(!s.videoTrack&&!s.audioTrack)throw this.video.handleNoVideoTrack(),this.video.duration=Number.NaN,this.audio.duration=Number.NaN,new Error("Input has no audio or video tracks.");this.input=a,this.media=s;const n=function(e,t){let i=!1,r=!1,a=!1;function s(s){t()&&!a&&("video"===s?i=!0:r=!0,i&&r&&(a=!0,e()))}return{video:()=>s("video"),audio:()=>s("audio")}}(()=>{this.readyState=1,Oc(this.events,r,["loadedmetadata","durationchange","progress"])},r);try{const e=this.video.load(s,n.video),t=r()?this.audio.load(s,n.audio):Promise.resolve();if(await Promise.all([e,t]),!r())return;this.readyState=4,this.networkState=1,Oc(this.events,r,["loadeddata","canplay","canplaythrough","progress"])}catch(o){if(!r())return;throw console.error("MediaBunny load error:",o),o}}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){this.loadSession?.disposeInput(),this.input=null,this.media=null}async replaceTracks(e){if(this.media&&!this.destroyed)return D(this,F).replace({...this.media,...e},this.currentTime)}async selectHlsQuality(e){return function(e,t){return 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i=t.readBits(3),r=t.readBits(1),{general_profile_space:a,general_tier_flag:s,general_profile_idc:n,general_profile_compatibility_flags:o,general_constraint_indicator_flags:c,general_level_idc:l}=Ht(t,i);$(t);const u=$(t);let h=0;3===u&&(h=t.readBits(1));const d=$(t),f=$(t);let m=d,p=f;if(t.readBits(1)){const e=$(t),i=$(t),r=$(t),a=$(t);let s=1,n=1;const o=0===h?u:0;1===o?(s=2,n=2):2===o&&(s=2,n=1),m-=(e+i)*s,p-=(r+a)*n}const g=$(t),k=$(t);$(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)$(t),b=$(t),$(t);$(t),$(t),$(t),$(t),$(t),$(t),t.readBits(1)&&t.readBits(1)&&Vt(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),$(t),$(t),t.skipBits(1));const w=$(t);if(jt(t,w),t.readBits(1)){const e=$(t);for(let i=0;i<e;i++)$(t),t.skipBits(1)}t.skipBits(1),t.skipBits(1);let T=2,S=2,v=2,P=0,I=0,x={num:1,den:1};if(t.readBits(1)){const e=Xt(t,i);x=e.pixelAspectRatio,T=e.colourPrimaries,S=e.transferCharacteristics,v=e.matrixCoefficients,P=e.fullRangeFlag,I=e.minSpatialSegmentationIdc}return{displayWidth:m,displayHeight:p,pixelAspectRatio:x,colourPrimaries:T,transferCharacteristics:S,matrixCoefficients:v,fullRangeFlag:P,maxDecFrameBuffering:b+1,spsMaxSubLayersMinus1:i,spsTemporalIdNestingFlag:r,generalProfileSpace:a,generalTierFlag:s,generalProfileIdc:n,generalProfileCompatibilityFlags:o,generalConstraintIndicatorFlags:c,generalLevelIdc:l,chromaFormatIdc:u,bitDepthLumaMinus8:g,bitDepthChromaMinus8:k,minSpatialSegmentationIdc:I}}catch(t){return ct._error("Error parsing HEVC SPS:",t),null}},Wt=e=>{try{const t=[],i=[],r=[],a=[];for(const c of Pt(e)){const s=e.subarray(c.offset,c.offset+c.length),n=Ut(s[0]);n===St.VPS_NUT?t.push(s):n===St.SPS_NUT?i.push(s):n===St.PPS_NUT?r.push(s):n!==St.PREFIX_SEI_NUT&&n!==St.SUFFIX_SEI_NUT||a.push(s)}if(0===i.length||0===r.length)return null;const s=qt(i[0]);if(!s)return null;let n=0;if(r.length>0){const e=r[0],t=new dt(Bt(e));t.skipBits(16),$(t),$(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),$(t),$(t),Q(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&$(t),Q(t),Q(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),a=t.readBits(1);n=i||a?i&&!a?2:!i&&a?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:St.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:St.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:St.PPS_NUT,nalUnits:r}]:[],...a.length?[{arrayCompleteness:1,nalUnitType:Ut(a[0][0]),nalUnits:a}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:n,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return ct._error("Error building HEVC Decoder Configuration Record:",t),null}},Ht=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),a=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const n=new Uint8Array(6);for(let u=0;u<6;u++)n[u]=e.readBits(8);const o=e.readBits(8),c=[],l=[];for(let u=0;u<t;u++)c.push(e.readBits(1)),l.push(e.readBits(1));if(t>0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u<t;u++)c[u]&&e.skipBits(88),l[u]&&e.skipBits(8);return{general_profile_space:i,general_tier_flag:r,general_profile_idc:a,general_profile_compatibility_flags:s,general_constraint_indicator_flags:n,general_level_idc:o}},Vt=e=>{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&Q(e);for(let t=0;t<i;t++)Q(e)}else $(e)}},jt=(e,t)=>{const i=[];for(let r=0;r<t;r++)i[r]=Kt(e,r,t,i)},Kt=(e,t,i,r)=>{let a=0,s=0,n=0;if(0!==t&&(s=e.readBits(1)),s){if(t===i){n=t-($(e)+1)}else n=t-1;e.readBits(1),$(e);const s=r[n]??0;for(let 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Mi)if(c<=h.maxPictureSize){l=h.level;break}const u=Zt[s];return{profile:r,level:l,bitDepth:a,chromaSubsampling:n,videoFullRangeFlag:o,colourPrimaries:u?.colourPrimaries??2,transferCharacteristics:u?.transferCharacteristics??2,matrixCoefficients:u?.matrixCoefficients??2}},ti=function*(e){const t=new dt(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*2**(7*i),!(128&r))break;if(7===i&&128&r)return null}return e>2**32-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const r=t.readBits(4),a=t.readBits(1),s=t.readBits(1);let n;if(t.skipBits(1),a&&t.skipBits(8),s){const e=i();if(null===e)return;n=e}else n=Math.floor(t.getBitsLeft()/8);j(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+n)},t.skipBits(8*n)}},ii=e=>{for(const{type:t,data:i}of ti(e)){if(1!==t)continue;const e=new dt(i),r=e.readBits(3);e.readBits(1);const a=e.readBits(1);let s=0,n=0,o=0;if(a)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let 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g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,w=1,T=1,S=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,w=0,T=0):(b=e.readBits(1),0===r?(w=1,T=1):1===r?(w=0,T=0):12===m?(w=e.readBits(1),T=w?e.readBits(1):0):(w=1,T=0),w&&T&&(S=e.readBits(2))),{profile:r,level:s,tier:n,bitDepth:m,monochrome:p,chromaSubsamplingX:w,chromaSubsamplingY:T,chromaSamplePosition:S,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},ri=e=>{if(e.length<36)return null;const t=J(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},ai=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],si=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in 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0}},qi=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:a}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=pt(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return a??"dtsc";if(t&&Ri.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},Wi=48e3,Hi=/^pcm-([usf])(\d+)(be)?$/,Vi=e=>{if(j(Ri.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=Hi.exec(e);let i;j(t),i="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:i,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?128:0}},ji=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":Oi.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":Li.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":Hi.test(e)?e:"webvtt"===e?"webvtt":null,Ki=[44100,48e3,32e3],Xi=[-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,32,40,48,56,64,80,96,112,128,160,192,224,256,320,-1,-1,32,48,56,64,80,96,112,128,160,192,224,256,320,384,-1,-1,32,64,96,128,160,192,224,256,288,320,352,384,416,448,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,32,48,56,64,80,96,112,128,144,160,176,192,224,256,-1],$i=1483304551,Gi=1231971951,Qi=(e,t)=>3===e?3===t?21:36:3===t?13:21,Yi=(e,t)=>{const i=e>>>24,r=e>>>16&255,a=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==a&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let n=0,o=0;16&r?n=8&r?0:1:(n=1,o=1);const c=r>>3&3,l=r>>1&3,u=(a>>2&3)%3,h=s>>6&3,d=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=Xi[16*n*4+16*l+(a>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=Ki[u]>>n+o,b=((e,t,i,r,a)=>0===t?0:1===t?Math.floor(144*i/(r<<e))+a:2===t?Math.floor(144*i/r)+a:4*(Math.floor(12*i/r)+a))(n,l,k,y,a>>1&1);if(null!==t&&t<b)return{header:null,bytesAdvanced:1};let w;return w=3===c?3===l?384:1152:3===l?384:2===l?1152:576,{header:{totalSize:b,mpegVersionId:c,lowSamplingFrequency:n,layer:l,bitrate:k,frequencyIndex:u,sampleRate:y,channel:h,modeExtension:d,copyright:f,original:m,emphasis:p,audioSamplesInFrame:w},bytesAdvanced:1}},Ji=e=>{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var Zi,er;(er=Zi||(Zi={}))[er.FrameCount=1]="FrameCount",er[er.FileSize=2]="FileSize",er[er.Toc=4]="Toc";const tr=e=>3===e?1:2;class ir{constructor(e){this.input=e}dispose(){}}const rr=new Uint8Array(0);class ar{constructor(e,t,i,r,a=-1,s,n){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=a,e===rr&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(a))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==n&&("object"!==typeof n||!n))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==n?.alpha&&!(n.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==n?.alphaByteLength&&(!Number.isInteger(n.alphaByteLength)||n.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=n??{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===rr}get microsecondTimestamp(){return Math.trunc(Me*this.timestamp)}get microsecondDuration(){return Math.trunc(Me*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const i=new Uint8Array(e.byteLength);return e.copyTo(i),new ar(i,e.type,e.timestamp/1e6,(e.duration??0)/1e6,void 0,void 0,t)}clone(e){if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==e?.data&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==e?.type&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==e?.timestamp&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==e?.duration&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==e?.sequenceNumber&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==e?.sideData&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new ar(e?.data??this.data,e?.type??this.type,e?.timestamp??this.timestamp,e?.duration??this.duration,e?.sequenceNumber??this.sequenceNumber,this.byteLength,e?.sideData??this.sideData)}}const sr=e=>{const t=J(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const a=de(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;t<r;t++)s.push(de(e.subarray(i,i+16))),i+=16}}const n=t.getUint32(i);return i+=4,{systemId:a,keyIds:s,data:e.slice(i,i+n)}},nr=(e,t)=>e.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i<e.length;i++)if(e[i]!==t[i])return!1;return!0})(e.data,t.data),or=e=>{let t=uc(e);const i=bc(e,4);let r=8;1===t&&(t=mc(e),r=16);const a=t-r;return a<0?null:{name:i,totalSize:t,headerSize:r,contentSize:a}},cr=e=>dc(e)/65536,lr=e=>dc(e)/1073741824,ur=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=ac(e);if(t|=127&i,0===(128&i))break}return t},hr=e=>{let t=nc(e);return e.skip(2),t=Math.min(t,e.remainingLength),Z.decode(rc(e,t))},dr=e=>{const t=or(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=uc(e);e.skip(4);const r=rc(e,t.contentSize-8);switch(i){case 1:return Z.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new lt(r,"image/jpeg");case 14:return new lt(r,"image/png");case 27:return new lt(r,"image/bmp");default:return r}},fr=16,mr=new Uint32Array(256),pr=new Uint32Array(256),gr=new Uint32Array(256),kr=new Uint32Array(256),yr=new Uint32Array(256),br=new Uint32Array(256),wr=new Uint32Array(10);let Tr=!1;class Sr{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(fr/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(fr),this.out=new Uint8Array(fr),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){j(16===e.byteLength),j(16===t.byteLength),Tr||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,n=1;s<256;s++)i[s]=n,t[n]=s,n=n^n<<1^(128&n?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let a=r^r<<1^r<<2^r<<3^r<<4;a=a>>>8^255&a^99,e[s]=a}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);mr[s]=t<<24|t<<16|t<<8|t,br[s]=i<<24|i<<16|i<<8|i;const a=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);pr[s]=a,gr[s]=a>>>8|a<<24,kr[s]=a>>>16|a<<16,yr[s]=a>>>24|a<<8}let a=1;for(let s=0;s<10;s++)wr[s]=a<<24,a=a<<1^(128&a?283:0);Tr=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let a=4;a<44;a+=4){const e=this.roundkey[a-1];this.roundkey[a]=this.roundkey[a-4]^4278190080&mr[e>>>16&255]^16711680&mr[e>>>8&255]^65280&mr[e>>>0&255]^255&mr[e>>>24&255]^wr[a/4-1],this.roundkey[a+1]=this.roundkey[a-3]^this.roundkey[a],this.roundkey[a+2]=this.roundkey[a-2]^this.roundkey[a+1],this.roundkey[a+3]=this.roundkey[a-1]^this.roundkey[a+2]}for(let a=0,s=40;a<s;a+=4,s-=4)for(let e=0;e<4;e++){const t=this.roundkey[a+e];this.roundkey[a+e]=this.roundkey[s+e],this.roundkey[s+e]=t}for(let a=4;a<40;a+=4)for(let e=0;e<4;e++){const t=this.roundkey[a+e];this.roundkey[a+e]=pr[255&mr[t>>>24&255]]^gr[255&mr[t>>>16&255]]^kr[255&mr[t>>>8&255]]^yr[255&mr[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const a=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),n=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let c,l,u,h;for(let g=1;g<10;g++){const a=4*g;c=pr[e>>>24]^gr[r>>>16&255]^kr[i>>>8&255]^yr[255&t]^this.roundkey[a],l=pr[t>>>24]^gr[e>>>16&255]^kr[r>>>8&255]^yr[255&i]^this.roundkey[a+1],u=pr[i>>>24]^gr[t>>>16&255]^kr[e>>>8&255]^yr[255&r]^this.roundkey[a+2],h=pr[r>>>24]^gr[i>>>16&255]^kr[t>>>8&255]^yr[255&e]^this.roundkey[a+3],e=c,t=l,i=u,r=h}const d=4278190080&br[e>>>24&255]^16711680&br[r>>>16&255]^65280&br[i>>>8&255]^255&br[t>>>0&255]^this.roundkey[40],f=4278190080&br[t>>>24&255]^16711680&br[e>>>16&255]^65280&br[r>>>8&255]^255&br[i>>>0&255]^this.roundkey[41],m=4278190080&br[i>>>24&255]^16711680&br[t>>>16&255]^65280&br[e>>>8&255]^255&br[r>>>0&255]^this.roundkey[42],p=4278190080&br[r>>>24&255]^16711680&br[i>>>16&255]^65280&br[t>>>8&255]^255&br[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,d^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=a,this.iv[1]=s,this.iv[2]=n,this.iv[3]=o}}class vr extends ir{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.tracks.map(e=>e.trackBacking)}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>"video"===e.info?.type),hasAudio:this.tracks.some(e=>"audio"===e.info?.type),codecStrings:t.filter(Boolean)})}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(Xe(r)&&(r=await r),!r)break;const a=e,s=or(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=bc(r,4);this.isQuickTime="qt  "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(Xe(e)&&(e=await e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>a+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');await this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=a+s.totalSize}if(!i&&this.input._initInput&&await this.copyMetadataFromInitInput(this.input._initInput),t){j(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);Xe(e)&&(e=await e),j(e);const t=uc(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(Xe(e)&&(e=await e),e){const t=or(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);Xe(i)&&(i=await i),i&&this.readContiguousBoxes(i)}}}}})())}async copyMetadataFromInitInput(e){const t=await e._getDemuxer();if(t.constructor!==vr)throw new Error("Init input must match the input's format.");await t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const i of t.tracks){const e={id:i.id,demuxer:this,trackBacking:null,disposition:i.disposition,timescale:i.timescale,durationInMediaTimescale:i.durationInMediaTimescale,durationInMovieTimescale:i.durationInMovieTimescale,rotation:i.rotation,internalCodecId:i.internalCodecId,name:i.name,languageCode:i.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:i.editListPreviousSegmentDurations,editListOffset:i.editListOffset,encryptionInfo:i.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:i.info};if(i.trackBacking)if(j(e.info),"video"===e.info.type&&-1!==e.info.width){const t=e;e.trackBacking=new Ir(t),this.tracks.push(e)}else if("audio"===e.info.type&&-1!==e.info.numberOfChannels){const t=e;e.trackBacking=new xr(t),this.tracks.push(e)}}}getSampleTableForTrack(e){if(e.sampleTable)return e.sampleTable;const t={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=t,null===e.sampleTableByteOffset)return t;j(this.moovSlice);const i=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(i),this.currentTrack=null;if("audio"===e.info?.type&&e.info.codec&&Ri.includes(e.info.codec)&&0===t.sampleCompositionTimeOffsets.length){j("audio"===e.info?.type);const i=Vi(e.info.codec),r=[],a=[];for(let s=0;s<t.sampleToChunk.length;s++){const n=t.sampleToChunk[s],o=t.sampleToChunk[s+1],c=(o?o.startChunkIndex:t.chunkOffsets.length)-n.startChunkIndex;for(let s=0;s<c;s++){const o=n.startSampleIndex+s*n.samplesPerChunk,c=o+n.samplesPerChunk,l=pe(t.sampleTimingEntries,o,e=>e.startIndex),u=t.sampleTimingEntries[l],h=pe(t.sampleTimingEntries,c,e=>e.startIndex),d=t.sampleTimingEntries[h],f=u.startDecodeTimestamp+(o-u.startIndex)*u.delta,m=d.startDecodeTimestamp+(c-d.startIndex)*d.delta-f,p=X(r);p&&p.delta===m?p.count++:r.push({startIndex:n.startChunkIndex+s,startDecodeTimestamp:f,count:1,delta:m});const g=n.samplesPerChunk*i.sampleSize*e.info.numberOfChannels;a.push(g)}n.startSampleIndex=n.startChunkIndex,n.samplesPerChunk=1}t.sampleTimingEntries=r,t.sampleSizes=a}if(t.sampleCompositionTimeOffsets.length>0){t.presentationTimestamps=[];for(const e of t.sampleTimingEntries)for(let i=0;i<e.count;i++)t.presentationTimestamps.push({presentationTimestamp:e.startDecodeTimestamp+i*e.delta,sampleIndex:e.startIndex+i});for(const e of t.sampleCompositionTimeOffsets)for(let i=0;i<e.count;i++){const r=e.startIndex+i,a=t.presentationTimestamps[r];a&&(a.presentationTimestamp+=e.offset)}t.presentationTimestamps.sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp),t.presentationTimestampIndexMap=Array(t.presentationTimestamps.length).fill(-1);for(let e=0;e<t.presentationTimestamps.length;e++)t.presentationTimestampIndexMap[t.presentationTimestamps[e].sampleIndex]=e}return t}async readFragment(e){if(this.lastReadFragment?.moofOffset===e)return this.lastReadFragment;let t=this.reader.requestSliceRange(e,8,16);Xe(t)&&(t=await t),j(t);const i=or(t);j("moof"===i?.name);let r=this.reader.requestSlice(e,i.totalSize);Xe(r)&&(r=await r),j(r),this.traverseBox(r);const a=this.lastReadFragment;j(a&&a.moofOffset===e);for(const[,s]of a.trackData){const e=s.track,{fragmentPositionCache:t}=e;if(!s.startTimestampIsFinal){const i=e.fragmentLookupTable.find(e=>e.moofOffset===a.moofOffset);if(i)Rr(s,i.timestamp);else{const e=pe(t,a.moofOffset-1,e=>e.moofOffset);if(-1!==e){const i=t[e];Rr(s,i.endTimestamp)}}s.startTimestampIsFinal=!0}const i=pe(t,s.startTimestamp,e=>e.startTimestamp);if(-1!==i&&t[i].moofOffset===a.moofOffset||t.splice(i+1,0,{moofOffset:a.moofOffset,startTimestamp:s.startTimestamp,endTimestamp:s.endTimestamp}),s.encryptionAuxInfo&&e.encryptionInfo){const t=await Dr(this.reader,e.encryptionInfo,s.encryptionAuxInfo);for(let e=0;e<Math.min(s.samples.length,t.length);e++){const i=t[e];s.samples[e].encryption=i}}}return a}readContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){if(!this.traverseBox(e))break}}*iterateContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){const t=e.filePos,i=or(e);if(!i)break;yield{boxInfo:i,slice:e},e.filePos=t+i.totalSize}}traverseBox(e){var t,i,r,a,s,n,o,c,l,u,h,d,f,m,p,g,k,y,b,w,T,S,v,P,I,x,C,B,E,_,R,F,A;const M=e.filePos,D=or(e);if(!D)return!1;const N=e.filePos,O=M+D.totalSize;switch(D.name){case"mdia":case"minf":case"dinf":case"mfra":case"edts":case"sinf":case"schi":case"wave":this.readContiguousBoxes(e.slice(N,D.contentSize));break;case"mvhd":{const t=ac(e);e.skip(3),1===t?(e.skip(16),this.movieTimescale=uc(e),this.movieDurationInTimescale=mc(e)):(e.skip(8),this.movieTimescale=uc(e),this.movieDurationInTimescale=uc(e))}break;case"trak":{const t={id:-1,demuxer:this,trackBacking:null,disposition:{...ht,primary:!1},info:null,timescale:-1,durationInMovieTimescale:-1,durationInMediaTimescale:-1,rotation:0,internalCodecId:null,name:null,languageCode:xe,sampleTableByteOffset:-1,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:0,editListOffset:0,encryptionInfo:null,encryptionAuxInfo:null,frmaCodecString:null};if(this.currentTrack=t,this.readContiguousBoxes(e.slice(N,D.contentSize)),-1!==t.id&&-1!==t.timescale&&null!==t.info)if("video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new Ir(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new xr(e),this.tracks.push(t)}this.currentTrack=null}break;case"tkhd":{const t=this.currentTrack;if(!t)break;const i=ac(e),r=!!(1&oc(e));if(t.disposition.default=r,0===i)e.skip(8),t.id=uc(e),e.skip(4),t.durationInMovieTimescale=uc(e);else{if(1!==i)throw new Error(`Incorrect track header version ${i}.`);e.skip(16),t.id=uc(e),e.skip(4),t.durationInMovieTimescale=mc(e)}e.skip(16);const a=[cr(e),cr(e),lr(e),cr(e),cr(e),lr(e),cr(e),cr(e),lr(e)],s=K(Be(Fr(a),90));j(0===s||90===s||180===s||270===s),t.rotation=s}break;case"elst":{const t=this.currentTrack;if(!t)break;const i=ac(e);e.skip(3);let r=!1,a=0;const s=uc(e);for(let n=0;n<s;n++){const s=1===i?mc(e):uc(e),n=1===i?pc(e):dc(e),o=cr(e);if(r){ct._warn("Unsupported edit list: multiple edits are not currently supported. Only using first edit.");break}if(-1!==n){if(1!==o){ct._warn("Unsupported edit list entry: media rate must be 1.");break}t.editListPreviousSegmentDurations=a,t.editListOffset=n,r=!0}else a+=s}}break;case"mdhd":{const t=this.currentTrack;if(!t)break;const i=ac(e);e.skip(3),0===i?(e.skip(8),t.timescale=uc(e),t.durationInMediaTimescale=uc(e)):1===i&&(e.skip(16),t.timescale=uc(e),t.durationInMediaTimescale=mc(e));let r=nc(e);if(r>0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;Ae(t.languageCode)||(t.languageCode=xe)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=bc(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:{...ce},avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=M,this.readContiguousBoxes(e.slice(N,D.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=ac(e);e.skip(3);const r=uc(e);for(let a=0;a<r;a++){const r=e.filePos,a=or(e);if(!a)break;t.internalCodecId=a.name;const s=a.name.toLowerCase();if("video"===t.info.type){e.skip(24),t.info.width=nc(e),t.info.height=nc(e),t.info.squarePixelWidth=t.info.width,t.info.squarePixelHeight=t.info.height,e.skip(50),t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+a.totalSize-e.filePos));const i="encv"===s?t.frmaCodecString:s;t.frmaCodecString=null,"avc1"===i||"avc3"===i?(t.info.codec="avc",t.info.avcType="avc1"===i?1:3):"hvc1"===i||"hev1"===i?t.info.codec="hevc":"vp08"===i?t.info.codec="vp8":"vp09"===i?t.info.codec="vp9":"av01"===i?t.info.codec="av1":Oi.includes(s)?(t.info.codec="prores",t.info.proresFormat=s):null===i?ct._warn("Unknown encrypted video codec due to missing frma box."):ct._warn(`Unsupported video codec (sample entry type '${a.name}').`)}else{e.skip(8);const n=nc(e);e.skip(6);let o=nc(e),c=nc(e);e.skip(4);let l=uc(e)/65536,u=null;0===i&&n>0&&(1===n?(e.skip(4),c=8*uc(e),e.skip(8)):2===n&&(e.skip(4),l=yc(e),o=uc(e),e.skip(4),c=uc(e),u=uc(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=l,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+a.totalSize-e.filePos));const h="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===h);else if("opus"===h)t.info.codec="opus",t.info.sampleRate=Wi;else if("flac"===h)t.info.codec="flac";else if("ulaw"===h)t.info.codec="ulaw";else if("alaw"===h)t.info.codec="alaw";else if("ac-3"===h)t.info.codec="ac3";else if("ec-3"===h)t.info.codec="eac3";else if(Li.includes(h))t.info.codec="dts",t.info.dtsFormat=h;else if("twos"===h)8===c?t.info.codec="pcm-s8":16===c?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(ct._warn(`Unsupported sample size ${c} for codec 'twos'.`),t.info.codec=null);else if("sowt"===h)8===c?t.info.codec="pcm-s8":16===c?t.info.codec="pcm-s16":(ct._warn(`Unsupported sample size ${c} for codec 'sowt'.`),t.info.codec=null);else if("raw "===h)t.info.codec="pcm-u8";else if("in24"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===h)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===h){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(ct._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(ct._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===h){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(ct._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(ct._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===h&&null!==u){const e=c+7>>3,i=Boolean(1&u),r=Boolean(2&u),a=4&u?-1:0;c>0&&c<=64&&(i?32===c&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):a&1<<e-1?1===e?t.info.codec="pcm-s8":2===e?t.info.codec=r?"pcm-s16be":"pcm-s16":3===e?t.info.codec=r?"pcm-s24be":"pcm-s24":4===e&&(t.info.codec=r?"pcm-s32be":"pcm-s32"):1===e&&(t.info.codec="pcm-u8")),null===t.info.codec&&ct._warn("Unsupported PCM format.")}else null===h?ct._warn("Unknown encrypted audio codec due to missing frma box."):ct._warn(`Unsupported audio codec (sample entry type '${a.name}').`)}e.filePos=r+a.totalSize}}break;case"frma":{const t=this.currentTrack;if(!t)break;const i=bc(e,4).toLowerCase();t.frmaCodecString=i}break;case"schm":{const t=this.currentTrack;if(!t)break;e.skip(4);const i=bc(e,4);"cenc"===i||"cens"===i||"cbcs"===i?t.encryptionInfo={scheme:i,defaultKid:null,defaultIsProtected:null,defaultPerSampleIvSize:null,defaultConstantIv:null,defaultCryptByteBlock:null,defaultSkipByteBlock:null}:ct._warn(`Unsupported encryption scheme '${i}'.`)}break;case"tenc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=ac(e);e.skip(3),e.skip(1);const r=ac(e);if(i>0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==ac(e),t.encryptionInfo.defaultPerSampleIvSize=ac(e),t.encryptionInfo.defaultKid=de(rc(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=ac(e),r=new Uint8Array(16);r.set(rc(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(j(t.info),0===D.contentSize)break;t.info.codecDescription=rc(e,D.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(j(t.info),0===D.contentSize)break;t.info.codecDescription=rc(e,D.contentSize)}break;case"vpcC":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type),e.skip(4);const i=ac(e),r=ac(e),a=ac(e),s=a>>4,n=a>>1&7,o=1&a,c=ac(e),l=ac(e),u=ac(e);t.info.vp9CodecInfo={profile:i,level:r,bitDepth:s,chromaSubsampling:n,videoFullRangeFlag:o,colourPrimaries:c,transferCharacteristics:l,matrixCoefficients:u}}break;case"av1C":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type),e.skip(1);const i=ac(e),r=i>>5,a=31&i,s=ac(e),n=s>>7,o=s>>6&1,c=s>>4&1,l=s>>3&1,u=s>>2&1,h=3&s,d=2===r&&o?s>>5&1?12:10:o?10:8;e.skip(1);const f=rc(e,D.contentSize-4),m=ii(f);t.info.av1CodecInfo={profile:r,level:a,tier:n,bitDepth:d,monochrome:c,chromaSubsamplingX:l,chromaSubsamplingY:u,chromaSamplePosition:h,videoFullRangeFlag:m?.videoFullRangeFlag??0,colourPrimaries:m?.colourPrimaries??2,transferCharacteristics:m?.transferCharacteristics??2,matrixCoefficients:m?.matrixCoefficients??2}}break;case"colr":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type);const i=bc(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=nc(e),a=nc(e),s=nc(e);let n;"nclx"===i&&(n=Boolean(128&ac(e))),t.info.colorSpace={primaries:ie[r],transfer:ae[a],matrix:ne[s],fullRange:n}}break;case"pasp":{const t=this.currentTrack;if(!t)break;j("video"===t.info?.type);const i=uc(e),r=uc(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==t.info?.type)break;e.skip(4);j(3===ac(e)),ur(e),e.skip(2);const i=ac(e),r=0!==(64&i),a=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=ac(e);e.skip(t)}a&&e.skip(2);j(4===ac(e));const s=ur(e),n=e.filePos,o=ac(e);if(64===o||103===o?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===o,objectType:null}):105===o||107===o?t.info.codec="mp3":221===o?t.info.codec="vorbis":169===o?t.info.codec="dts":ct._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-n){j(5===ac(e));const i=ur(e);if(t.info.codecDescription=rc(e,i),"aac"===t.info.codec){const e=pt(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),t.info.pcmLittleEndian=!!(255&nc(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),e.skip(4);const i=ac(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=ac(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),e.skip(1);const i=ac(e),r=nc(e),a=uc(e),s=cc(e),n=ac(e);let o;o=0!==n?rc(e,2+i):new Uint8Array(0);const c=new Uint8Array(19+o.byteLength),l=new DataView(c.buffer);l.setUint32(0,1332770163,!1),l.setUint32(4,1214603620,!1),l.setUint8(8,1),l.setUint8(9,i),l.setUint16(10,r,!0),l.setUint32(12,a,!0),l.setInt16(16,s,!0),l.setUint8(18,n),c.set(o,19),t.info.codecDescription=c,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type),e.skip(4);const i=127,r=128,a=e.filePos;for(;e.filePos<O;){const a=ac(e),s=oc(e);if((a&i)===oi.STREAMINFO){e.skip(10);const i=uc(e),r=i>>>12,a=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=a,e.skip(20)}else e.skip(s);if(a&r)break}const s=e.filePos;e.filePos=a;const n=rc(e,s-a),o=new Uint8Array(4+n.byteLength);new DataView(o.buffer).setUint32(0,1716281667,!1),o.set(n,4),t.info.codecDescription=o}break;case"dac3":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type);const i=rc(e,3),r=new dt(i),a=r.readBits(2);r.skipBits(8);const s=r.readBits(3),n=r.readBits(1);a<3&&(t.info.sampleRate=yt[a]),t.info.numberOfChannels=ui[s]+n}break;case"dec3":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type);const i=(e=>{if(e.length<2)return null;const t=new dt(e),i=t.readBits(13),r=t.readBits(3),a=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),n=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let c=0;o>0?c=t.readBits(9):t.skipBits(1),a.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:n,numDepSub:o,chanLoc:c})}return 0===a.length?null:{dataRate:i,substreams:a}})(rc(e,D.contentSize));if(!i){ct._warn("Invalid dec3 box contents, ignoring.");break}const r=pi(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=gi(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;j("audio"===t.info?.type);const i=(e=>{if(e.length<20)return null;const t=J(e),i=t.getUint32(0);if(0===i)return null;const r=new dt(e);r.seekToByte(13);const a=r.readBits(2);r.skipBits(5);const s=r.readBits(1),n=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let c=null;return 0!==o?c=Ei(o):n<wi.length&&(c=wi[n]+s),{sampleRate:i,maxBitrate:t.getUint32(4),avgBitrate:t.getUint32(8),pcmSampleDepth:e[12],sampleCount:Pi[a],channelLayout:o,numberOfChannels:c}})(rc(e,Math.min(D.contentSize,20)));if(!i){ct._warn("Invalid ddts box contents, ignoring.");break}t.info.sampleRate=i.sampleRate,null!==i.numberOfChannels&&(t.info.numberOfChannels=i.numberOfChannels)}break;case"stts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);let r=0,a=0;for(let s=0;s<i;s++){const i=uc(e),s=uc(e);t.sampleTable.sampleTimingEntries.push({startIndex:r,startDecodeTimestamp:a,count:i,delta:s}),r+=i,a+=i*s}}break;case"ctts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);let r=0;for(let a=0;a<i;a++){const i=uc(e),a=dc(e);t.sampleTable.sampleCompositionTimeOffsets.push({startIndex:r,count:i,offset:a}),r+=i}}break;case"stsz":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e),r=uc(e);if(0===i)for(let a=0;a<r;a++){const i=uc(e);t.sampleTable.sampleSizes.push(i)}else t.sampleTable.sampleSizes.push(i)}break;case"stz2":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),e.skip(3);const i=ac(e),r=uc(e),a=rc(e,Math.ceil(r*i/8)),s=new dt(a);for(let e=0;e<r;e++){const e=s.readBits(i);t.sampleTable.sampleSizes.push(e)}}break;case"stss":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),t.sampleTable.keySampleIndices=[];const i=uc(e);for(let r=0;r<i;r++){const i=uc(e)-1;t.sampleTable.keySampleIndices.push(i)}0!==t.sampleTable.keySampleIndices[0]&&t.sampleTable.keySampleIndices.unshift(0)}break;case"stsc":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);for(let a=0;a<i;a++){const i=uc(e)-1,r=uc(e),a=uc(e);t.sampleTable.sampleToChunk.push({startSampleIndex:-1,startChunkIndex:i,samplesPerChunk:r,sampleDescriptionIndex:a})}let r=0;for(let e=0;e<t.sampleTable.sampleToChunk.length;e++)if(t.sampleTable.sampleToChunk[e].startSampleIndex=r,e<t.sampleTable.sampleToChunk.length-1){r+=(t.sampleTable.sampleToChunk[e+1].startChunkIndex-t.sampleTable.sampleToChunk[e].startChunkIndex)*t.sampleTable.sampleToChunk[e].samplesPerChunk}}break;case"stco":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);for(let r=0;r<i;r++){const i=uc(e);t.sampleTable.chunkOffsets.push(i)}}break;case"co64":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=uc(e);for(let r=0;r<i;r++){const i=mc(e);t.sampleTable.chunkOffsets.push(i)}}break;case"mvex":this.isFragmented=!0,this.readContiguousBoxes(e.slice(N,D.contentSize));break;case"mehd":{const t=ac(e);e.skip(3);const i=1===t?mc(e):uc(e);this.movieDurationInTimescale=i}break;case"trex":{e.skip(4);const t=uc(e),i=uc(e),r=uc(e),a=uc(e),s=uc(e);this.fragmentTrackDefaults.push({trackId:t,defaultSampleDescriptionIndex:i,defaultSampleDuration:r,defaultSampleSize:a,defaultSampleFlags:s})}break;case"tfra":{const t=ac(e);e.skip(3);const i=uc(e),r=this.tracks.find(e=>e.id===i);if(!r)break;const a=uc(e),s=(12&a)>>2,n=3&a,o=[ac,nc,oc,uc],c=o[(48&a)>>4],l=o[s],u=o[n],h=uc(e);for(let d=0;d<h;d++){const i=1===t?mc(e):uc(e),a=1===t?mc(e):uc(e);c(e),l(e),u(e),r.fragmentLookupTable.push({timestamp:i,moofOffset:a})}r.fragmentLookupTable.sort((e,t)=>e.timestamp-t.timestamp);for(let e=0;e<r.fragmentLookupTable.length-1;e++){const t=r.fragmentLookupTable[e],i=r.fragmentLookupTable[e+1];t.timestamp===i.timestamp&&(r.fragmentLookupTable.splice(e+1,1),e--)}}break;case"moof":this.currentFragment={moofOffset:M,moofSize:D.totalSize,implicitBaseDataOffset:M,trackData:new Map,psshBoxes:[]},this.readContiguousBoxes(e.slice(N,D.contentSize)),this.lastReadFragment=this.currentFragment,this.currentFragment=null;break;case"traf":if(j(this.currentFragment),this.readContiguousBoxes(e.slice(N,D.contentSize)),this.currentTrack){const e=this.currentFragment.trackData.get(this.currentTrack.id);e:if(e){if(0===e.samples.length){this.currentFragment.trackData.delete(this.currentTrack.id);break e}e.presentationTimestamps=e.samples.map((e,t)=>({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let a=0;a<e.presentationTimestamps.length;a++){const t=e.presentationTimestamps[a],i=e.samples[t.sampleIndex];if(null===e.firstKeyFrameTimestamp&&i.isKeyFrame&&(e.firstKeyFrameTimestamp=i.presentationTimestamp),a<e.presentationTimestamps.length-1){const r=e.presentationTimestamps[a+1].presentationTimestamp-t.presentationTimestamp;i.duration=r}}const t=e.samples[e.presentationTimestamps[0].sampleIndex],i=e.samples[X(e.presentationTimestamps).sampleIndex];e.startTimestamp=t.presentationTimestamp,e.endTimestamp=i.presentationTimestamp+i.duration;const{currentFragmentState:r}=this.currentTrack;j(r),null!==r.startTimestamp&&(Rr(e,r.startTimestamp),e.startTimestampIsFinal=!0),r.encryptionAuxInfo&&!e.samples[0].encryption&&(e.encryptionAuxInfo=r.encryptionAuxInfo)}this.currentTrack.currentFragmentState=null,this.currentTrack=null}break;case"pssh":{if(this.input._formatOptions.isobmff?._suppressPsshParsing)break;const t=sr(rc(e,D.contentSize));this.currentFragment?this.currentFragment.psshBoxes.push(t):this.currentTrack||this.psshBoxes.push(t)}break;case"tfhd":{j(this.currentFragment),e.skip(1);const t=oc(e),i=Boolean(1&t),r=Boolean(2&t),a=Boolean(8&t),s=Boolean(16&t),n=Boolean(32&t),o=Boolean(65536&t),c=Boolean(131072&t),l=uc(e),u=this.tracks.find(e=>e.id===l);if(!u)break;const h=this.fragmentTrackDefaults.find(e=>e.trackId===l);this.currentTrack=u,u.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:h?.defaultSampleDescriptionIndex??null,defaultSampleDuration:h?.defaultSampleDuration??null,defaultSampleSize:h?.defaultSampleSize??null,defaultSampleFlags:h?.defaultSampleFlags??null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=mc(e):c&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=uc(e)),a&&(u.currentFragmentState.defaultSampleDuration=uc(e)),s&&(u.currentFragmentState.defaultSampleSize=uc(e)),n&&(u.currentFragmentState.defaultSampleFlags=uc(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;j(t.currentFragmentState);const i=ac(e);e.skip(3);const r=0===i?uc(e):mc(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;j(this.currentFragment),j(t.currentFragmentState);const i=ac(e),r=oc(e),a=Boolean(1&r),s=Boolean(4&r),n=Boolean(256&r),o=Boolean(512&r),c=Boolean(1024&r),l=Boolean(2048&r),u=uc(e);let h=null;a&&(h=dc(e));let d,f=null;s&&(f=uc(e)),this.currentFragment.trackData.has(t.id)?(d=this.currentFragment.trackData.get(t.id),null!==h&&(d.currentOffset=t.currentFragmentState.baseDataOffset+h)):(d={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(h??0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,d));for(let m=0;m<u;m++){let r,a,s;n?r=uc(e):(j(null!==t.currentFragmentState.defaultSampleDuration),r=t.currentFragmentState.defaultSampleDuration),o?a=uc(e):(j(null!==t.currentFragmentState.defaultSampleSize),a=t.currentFragmentState.defaultSampleSize),c?s=uc(e):(j(null!==t.currentFragmentState.defaultSampleFlags),s=t.currentFragmentState.defaultSampleFlags),0===m&&null!==f&&(s=f);let u=0;l&&(u=0===i?uc(e):dc(e));const h=!(65536&s);d.samples.push({presentationTimestamp:d.currentTimestamp+u,duration:r,byteOffset:d.currentOffset,byteSize:a,isKeyFrame:h,encryption:null}),d.currentOffset+=a,d.currentTimestamp+=r}this.currentFragment.implicitBaseDataOffset=d.currentOffset}break;case"saiz":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;e.skip(1);if(1&oc(e)){const i=bc(e,4),r=uc(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const i=ac(e),r=uc(e);let a=null;0===i&&r>0&&(a=rc(e,r));const s=Mr(t);s.defaultSampleInfoSize=i,s.sampleSizes=a,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=ac(e);if(1&oc(e)){const i=bc(e,4),r=uc(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=uc(e);if(0===r)break;r>1&&ct._warn("Multiple saio entries are not supported; using the first offset only.");let a=0===i?uc(e):Number(mc(e));this.currentFragment&&(a+=this.currentFragment.moofOffset);Mr(t).offset=a}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;j(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=oc(e),a=Boolean(2&r),s=uc(e),n=t.encryptionInfo.defaultPerSampleIvSize;j(null!==n);for(let o=0;o<Math.min(s,i.samples.length);o++){const r=new Uint8Array(16);n>0?r.set(rc(e,n),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(a){const t=nc(e);s=[];for(let i=0;i<t;i++){const t=nc(e),i=uc(e);s.push({clearLen:t,protectedLen:i})}}i.samples[o].encryption={iv:r,subsamples:s}}}break;case"udta":{const p=this.iterateContiguousBoxes(e.slice(N,D.contentSize));for(const{boxInfo:e,slice:g}of p){if("meta"!==e.name&&!this.currentTrack){const n=g.filePos;(t=this.metadataTags).raw??(t.raw={}),"\xa9"===e.name[0]?(i=this.metadataTags.raw)[r=e.name]??(i[r]=hr(g)):(a=this.metadataTags.raw)[s=e.name]??(a[s]=rc(g,e.contentSize)),g.filePos=n}switch(e.name){case"meta":g.skip(-e.headerSize),this.traverseBox(g);break;case"\xa9nam":case"name":this.currentTrack?this.currentTrack.name=Z.decode(rc(g,e.contentSize)):(n=this.metadataTags).title??(n.title=hr(g));break;case"\xa9des":this.currentTrack||((o=this.metadataTags).description??(o.description=hr(g)));break;case"\xa9ART":this.currentTrack||((c=this.metadataTags).artist??(c.artist=hr(g)));break;case"\xa9alb":this.currentTrack||((l=this.metadataTags).album??(l.album=hr(g)));break;case"albr":this.currentTrack||((u=this.metadataTags).albumArtist??(u.albumArtist=hr(g)));break;case"\xa9gen":this.currentTrack||((h=this.metadataTags).genre??(h.genre=hr(g)));break;case"\xa9day":if(!this.currentTrack){const e=new Date(hr(g));Number.isNaN(e.getTime())||((d=this.metadataTags).date??(d.date=e))}break;case"\xa9cmt":this.currentTrack||((f=this.metadataTags).comment??(f.comment=hr(g)));break;case"\xa9lyr":this.currentTrack||((m=this.metadataTags).lyrics??(m.lyrics=hr(g)))}}}break;case"meta":{if(this.currentTrack)break;const t=0!==uc(e);this.currentMetadataKeys=new Map,t?this.readContiguousBoxes(e.slice(N,D.contentSize)):this.readContiguousBoxes(e.slice(N+4,D.contentSize-4)),this.currentMetadataKeys=null}break;case"keys":{if(!this.currentMetadataKeys)break;e.skip(4);const t=uc(e);for(let i=0;i<t;i++){const t=uc(e);e.skip(4);const r=Z.decode(rc(e,t-8));this.currentMetadataKeys.set(i+1,r)}}break;case"ilst":{if(!this.currentMetadataKeys)break;const t=this.iterateContiguousBoxes(e.slice(N,D.contentSize));for(const{boxInfo:e,slice:i}of t){let t=e.name;const r=(t.charCodeAt(0)<<24)+(t.charCodeAt(1)<<16)+(t.charCodeAt(2)<<8)+t.charCodeAt(3);this.currentMetadataKeys.has(r)&&(t=this.currentMetadataKeys.get(r));const a=dr(i);switch((p=this.metadataTags).raw??(p.raw={}),(g=this.metadataTags.raw)[t]??(g[t]=a),t){case"\xa9nam":case"titl":case"com.apple.quicktime.title":case"title":"string"===typeof a&&((k=this.metadataTags).title??(k.title=a));break;case"\xa9des":case"desc":case"dscp":case"com.apple.quicktime.description":case"description":"string"===typeof a&&((y=this.metadataTags).description??(y.description=a));break;case"\xa9ART":case"com.apple.quicktime.artist":case"artist":"string"===typeof a&&((b=this.metadataTags).artist??(b.artist=a));break;case"\xa9alb":case"albm":case"com.apple.quicktime.album":case"album":"string"===typeof a&&((w=this.metadataTags).album??(w.album=a));break;case"aART":case"album_artist":"string"===typeof a&&((T=this.metadataTags).albumArtist??(T.albumArtist=a));break;case"\xa9cmt":case"com.apple.quicktime.comment":case"comment":"string"===typeof a&&((S=this.metadataTags).comment??(S.comment=a));break;case"\xa9gen":case"gnre":case"com.apple.quicktime.genre":case"genre":"string"===typeof a&&((v=this.metadataTags).genre??(v.genre=a));break;case"\xa9lyr":case"lyrics":"string"===typeof a&&((P=this.metadataTags).lyrics??(P.lyrics=a));break;case"\xa9day":case"rldt":case"com.apple.quicktime.creationdate":case"date":if("string"===typeof a){const e=new Date(a);Number.isNaN(e.getTime())||((I=this.metadataTags).date??(I.date=e))}break;case"covr":case"com.apple.quicktime.artwork":a instanceof lt?((x=this.metadataTags).images??(x.images=[]),this.metadataTags.images.push({data:a.data,kind:"coverFront",mimeType:a.mimeType})):a instanceof Uint8Array&&((C=this.metadataTags).images??(C.images=[]),this.metadataTags.images.push({data:a,kind:"coverFront",mimeType:"image/*"}));break;case"track":if("string"===typeof a){const e=a.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&((B=this.metadataTags).trackNumber??(B.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((E=this.metadataTags).tracksTotal??(E.tracksTotal=i))}break;case"trkn":if(a instanceof Uint8Array&&a.length>=6){const e=J(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((_=this.metadataTags).trackNumber??(_.trackNumber=t)),i>0&&((R=this.metadataTags).tracksTotal??(R.tracksTotal=i))}break;case"disc":case"disk":if(a instanceof Uint8Array&&a.length>=6){const e=J(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((F=this.metadataTags).discNumber??(F.discNumber=t)),i>0&&((A=this.metadataTags).discsTotal??(A.discsTotal=i))}}}}}return e.filePos=O,!0}}class Pr{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.internalTrack;if(e.durationInMediaTimescale<=0)return null;j(e.trackBacking);const t=await e.trackBacking.getFirstPacket({metadataOnly:!0});return(t?.timestamp??0)+e.durationInMediaTimescale/e.timescale}async getLiveRefreshInterval(){return null}async getFirstPacket(e){const t=await this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)}mapTimestampIntoTimescale(e){return Ce(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}async getPacket(e,t){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a=Cr(r,i),s=await this.fetchPacketForSampleIndex(a,t);return Ar(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=pe(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s}async getNextPacket(e,t){const i=this.packetToSampleIndex.get(e);if(void 0!==i)return this.fetchPacketForSampleIndex(i+1,t);const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1<t.samples.length)return{sampleIndex:r.sampleIndex+1,correctSampleFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{sampleIndex:0,correctSampleFound:!0}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)}async getKeyPacket(e,t){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a=Br(r,i),s=await this.fetchPacketForSampleIndex(a,t);return Ar(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=we(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s}async getNextKeyPacket(e,t){const i=this.packetToSampleIndex.get(e);if(void 0!==i){const e=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=_r(e,i);return this.fetchPacketForSampleIndex(r,t)}const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return j(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)}async fetchPacketForSampleIndex(e,t){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=Er(i,e);if(!r)return null;let a;if(t.metadataOnly)a=rr;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(Xe(t)&&(t=await t),!t)return null;if(a=rc(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=await Dr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);e<i.length&&(t=i[e])}t??(t=Nr(this.internalTrack.encryptionInfo)),t&&(a=await Or(this.internalTrack,t,a,null))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,n=r.duration/this.internalTrack.timescale,o=new ar(a,r.isKeyFrame?"key":"delta",s,n,e,r.sampleSize);return this.packetToSampleIndex.set(o,e),o}async fetchPacketInFragment(e,t,i){if(-1===t)return null;const r=e.trackData.get(this.internalTrack.id).samples[t];let a;if(j(r),i.metadataOnly)a=rr;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.byteOffset,r.byteSize);if(Xe(t)&&(t=await t),!t)return null;if(a=rc(t,r.byteSize),this.internalTrack.encryptionInfo){const t=r.encryption??Nr(this.internalTrack.encryptionInfo);t&&(a=await Or(this.internalTrack,t,a,e))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,n=r.duration/this.internalTrack.timescale,o=new ar(a,r.isKeyFrame?"key":"delta",s,n,e.moofOffset+t,r.byteSize);return this.packetToFragmentLocation.set(o,{fragment:e,sampleIndex:t}),o}async performFragmentedLookup(e,t,i,r,a){const s=this.internalTrack.demuxer;let n=null,o=null,c=-1;if(e){const{sampleIndex:i,correctSampleFound:r}=t(e);if(r)return this.fetchPacketInFragment(e,i,a);-1!==i&&(o=e,c=i)}const l=pe(this.internalTrack.fragmentLookupTable,i,e=>e.timestamp),u=-1!==l?this.internalTrack.fragmentLookupTable[l]:null,h=pe(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),d=-1!==h?this.internalTrack.fragmentPositionCache[h]:null,f=Math.max(u?.moofOffset??0,d?.moofOffset??0)||null;let m;for(e?null===f||e.moofOffset>=f?(m=e.moofOffset+e.moofSize,n=e):m=f:m=f??0;;){if(n){const e=n.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=s.reader.requestSliceRange(m,8,16);if(Xe(e)&&(e=await e),!e)break;const i=m,l=or(e);if(!l)break;if("moof"===l.name){n=await s.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(n);if(r)return this.fetchPacketInFragment(n,e,a);-1!==e&&(o=n,c=e)}m=i+l.totalSize}if(u&&(!o||o.moofOffset<u.moofOffset)){const e=this.internalTrack.fragmentLookupTable[l-1];j(!e||e.timestamp<u.timestamp);const i=e?.timestamp??-1/0;return this.performFragmentedLookup(null,t,i,r,a)}return o?this.fetchPacketInFragment(o,c,a):null}}class Ir extends Pr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.rotation}async getColorSpace(){const e=await this.getDecoderConfig();return e?{primaries:e.colorSpace?.primaries,transfer:e.colorSpace?.transfer,matrix:e.colorSpace?.matrix,fullRange:e.colorSpace?.fullRange}:this.internalTrack.info.colorSpace}async canBeTransparent(){return"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{var e,t,i,r,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=await this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&ri(e.data)}}else{const e=await this.getFirstPacket({}),t=e&&ii(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const e=await this.getFirstPacket({}),t=e&&ei(e.data);t&&(this.internalTrack.info.vp9CodecInfo={...this.internalTrack.info.vp9CodecInfo??t,videoFullRangeFlag:t.videoFullRangeFlag,colourPrimaries:t.colourPrimaries,transferCharacteristics:t.transferCharacteristics,matrixCoefficients:t.matrixCoefficients})}else{const e=await this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&Wt(e.data)}else{const e=await this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&Ft(e.data)}if(!oe(this.internalTrack.info.colorSpace)){const a=Ui(this.internalTrack.info);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const s={codec:zi(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(s.displayAspectWidth=this.internalTrack.info.squarePixelWidth,s.displayAspectHeight=this.internalTrack.info.squarePixelHeight),s})()):null}}class xr extends Pr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&xi(e.data)}return{codec:qi(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Cr=(e,t)=>{if(e.presentationTimestamps){const i=pe(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=pe(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},Br=(e,t)=>{if(!e.keySampleIndices)return Cr(e,t);if(e.presentationTimestamps){const i=pe(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==me(e.keySampleIndices,i,e=>e))return i}return-1}{const i=Cr(e,t),r=pe(e.keySampleIndices,i,e=>e);return e.keySampleIndices[r]??-1}},Er=(e,t)=>{const i=pe(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let a=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=pe(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),n=e.sampleCompositionTimeOffsets[s];n&&t-n.startIndex<n.count&&(a+=n.offset);const o=e.sampleSizes[Math.min(t,e.sampleSizes.length-1)],c=pe(e.sampleToChunk,t,e=>e.startSampleIndex),l=e.sampleToChunk[c];j(l);const u=l.startChunkIndex+Math.floor((t-l.startSampleIndex)/l.samplesPerChunk),h=e.chunkOffsets[u],d=l.startSampleIndex+(u-l.startChunkIndex)*l.samplesPerChunk;let f=0,m=h;if(1===e.sampleSizes.length)m+=o*(t-d),f+=o*l.samplesPerChunk;else for(let g=d;g<d+l.samplesPerChunk;g++){const i=e.sampleSizes[g];g<t&&(m+=i),f+=i}let p=r.delta;if(e.presentationTimestamps){const i=e.presentationTimestampIndexMap[t];if(j(void 0!==i),i<e.presentationTimestamps.length-1){p=e.presentationTimestamps[i+1].presentationTimestamp-a}}return{presentationTimestamp:a,duration:p,sampleOffset:m,sampleSize:o,chunkOffset:h,chunkSize:f,isKeyFrame:!e.keySampleIndices||-1!==me(e.keySampleIndices,t,e=>e)}},_r=(e,t)=>{if(!e.keySampleIndices)return t+1;const i=pe(e.keySampleIndices,t,e=>e);return e.keySampleIndices[i+1]??-1},Rr=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},Fr=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},Ar=e=>0===e.sampleSizes.length,Mr=e=>{var t;return e.currentFragmentState?(t=e.currentFragmentState).encryptionAuxInfo??(t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}):e.encryptionAuxInfo??(e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null})},Dr=async(e,t,i)=>{if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{j(i.sampleSizes);for(let e=0;e<i.sampleCount;e++)r+=i.sampleSizes[e]}let a=e.requestSlice(i.offset,r);if(Xe(a)&&(a=await a),!a)throw new Error("Failed to read auxiliary encryption info.");const s=t.defaultPerSampleIvSize;j(null!==s);const n=[];for(let o=0;o<i.sampleCount;o++){const e=i.defaultSampleInfoSize>0?i.defaultSampleInfoSize:i.sampleSizes[o],r=new Uint8Array(16);s>0?r.set(rc(a,s),0):r.set(t.defaultConstantIv,0);let c=null;if(e>s){const e=nc(a);c=[];for(let t=0;t<e;t++){const e=nc(a),t=uc(a);c.push({clearLen:e,protectedLen:t})}}n.push({iv:r,subsamples:c})}return i.resolved=n,n},Nr=e=>e.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,Or=async(e,t,i,r)=>{j(e.encryptionInfo);const a=e.encryptionInfo;j(null!==a.defaultKid);const s=a.defaultKid;let n;const o=e.demuxer.decryptionKeyCache.get(s);if(o)n=await o;else{if(!e.demuxer.input._formatOptions.isobmff?.resolveKeyId)throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=(async()=>{let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(s));for(let e=0;e<t.length-1;e++)for(let i=e+1;i<t.length;i++)nr(t[e],t[i])&&(t.splice(i,1),i--)}const i=await e.demuxer.input._formatOptions.isobmff.resolveKeyId({keyId:s,psshBoxes:t});if(!("string"===typeof i&&32===i.length&&he.test(i)||i instanceof Uint8Array&&16===i.byteLength))throw new TypeError("resolveKeyId must return a 32-character hex string or a 16-byte Uint8Array containing the decryption key.");return i instanceof Uint8Array?i:(e=>{j(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;i<e.length;i+=2)t[i/2]=parseInt(e.slice(i,i+2),16);return t})(i)})();e.demuxer.decryptionKeyCache.set(s,t),n=await t}return"cenc"===a.scheme||"cens"===a.scheme?Lr(n,a,t,i):zr(n,a,t,i)},Lr=async(e,t,i,r)=>{const a=new Uint8Array(16);a.set(i.iv,0);const s=await crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),n=async e=>{const t=await crypto.subtle.decrypt({name:"AES-CTR",counter:a,length:64},s,e);return new Uint8Array(t)};if(!i.subsamples)return n(r);j(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=Ur(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let c=0;for(const m of o)for(const e of m.perSubsample)c+=e.length;const l=new Uint8Array(c);let u=0;for(const m of o)for(const e of m.perSubsample)l.set(r.subarray(e.offset,e.offset+e.length),u),u+=e.length;const h=await n(l),d=new Uint8Array(r);let f=0;for(const m of o)for(const e of m.perSubsample)d.set(h.subarray(f,f+e.length),e.offset),f+=e.length;return d},zr=(e,t,i,r)=>{const a=new Sr;a.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,n=t.defaultSkipByteBlock;if(j(null!==s&&null!==n),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i<t;i++){const t=16*i;a.in.set(r.subarray(t,t+16)),a.decrypt(),e.set(a.out,t)}return e}if(0===s&&0===n)throw new Error("cbcs with subsamples requires pattern encryption.");const o=new Uint8Array(r),c=Ur(i.subsamples,s,n),l=new DataView(i.iv.buffer,i.iv.byteOffset,16);for(const u of c){a.iv[0]=l.getUint32(0,!1),a.iv[1]=l.getUint32(4,!1),a.iv[2]=l.getUint32(8,!1),a.iv[3]=l.getUint32(12,!1);for(const e of u.perSubsample){const t=e.length/16;for(let i=0;i<t;i++){const t=e.offset+16*i;a.in.set(r.subarray(t,t+16)),a.decrypt(),o.set(a.out,t)}}}return o},Ur=(e,t,i)=>{const r=[],a=0!==t||0!==i;let s=0;for(const n of e){s+=n.clearLen;const e=[];if(a){let r=n.protectedLen,a=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:a,length:s}),a+=s,r-=s;const n=Math.min(16*i,r);a+=n,r-=n}s+=n.protectedLen}else n.protectedLen>0&&e.push({offset:s,length:n.protectedLen}),s+=n.protectedLen;r.push({perSubsample:e})}return r};var qr,Wr;(Wr=qr||(qr={}))[Wr.EBML=440786851]="EBML",Wr[Wr.EBMLVersion=17030]="EBMLVersion",Wr[Wr.EBMLReadVersion=17143]="EBMLReadVersion",Wr[Wr.EBMLMaxIDLength=17138]="EBMLMaxIDLength",Wr[Wr.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",Wr[Wr.DocType=17026]="DocType",Wr[Wr.DocTypeVersion=17031]="DocTypeVersion",Wr[Wr.DocTypeReadVersion=17029]="DocTypeReadVersion",Wr[Wr.Void=236]="Void",Wr[Wr.Segment=408125543]="Segment",Wr[Wr.SeekHead=290298740]="SeekHead",Wr[Wr.Seek=19899]="Seek",Wr[Wr.SeekID=21419]="SeekID",Wr[Wr.SeekPosition=21420]="SeekPosition",Wr[Wr.Duration=17545]="Duration",Wr[Wr.Info=357149030]="Info",Wr[Wr.TimestampScale=2807729]="TimestampScale",Wr[Wr.MuxingApp=19840]="MuxingApp",Wr[Wr.WritingApp=22337]="WritingApp",Wr[Wr.Tracks=374648427]="Tracks",Wr[Wr.TrackEntry=174]="TrackEntry",Wr[Wr.TrackNumber=215]="TrackNumber",Wr[Wr.TrackUID=29637]="TrackUID",Wr[Wr.TrackType=131]="TrackType",Wr[Wr.FlagEnabled=185]="FlagEnabled",Wr[Wr.FlagDefault=136]="FlagDefault",Wr[Wr.FlagForced=21930]="FlagForced",Wr[Wr.FlagOriginal=21934]="FlagOriginal",Wr[Wr.FlagHearingImpaired=21931]="FlagHearingImpaired",Wr[Wr.FlagVisualImpaired=21932]="FlagVisualImpaired",Wr[Wr.FlagCommentary=21935]="FlagCommentary",Wr[Wr.FlagLacing=156]="FlagLacing",Wr[Wr.Name=21358]="Name",Wr[Wr.Language=2274716]="Language",Wr[Wr.LanguageBCP47=2274717]="LanguageBCP47",Wr[Wr.CodecID=134]="CodecID",Wr[Wr.CodecPrivate=25506]="CodecPrivate",Wr[Wr.CodecDelay=22186]="CodecDelay",Wr[Wr.SeekPreRoll=22203]="SeekPreRoll",Wr[Wr.DefaultDuration=2352003]="DefaultDuration",Wr[Wr.Video=224]="Video",Wr[Wr.PixelWidth=176]="PixelWidth",Wr[Wr.PixelHeight=186]="PixelHeight",Wr[Wr.DisplayWidth=21680]="DisplayWidth",Wr[Wr.DisplayHeight=21690]="DisplayHeight",Wr[Wr.DisplayUnit=21682]="DisplayUnit",Wr[Wr.AlphaMode=21440]="AlphaMode",Wr[Wr.Audio=225]="Audio",Wr[Wr.SamplingFrequency=181]="SamplingFrequency",Wr[Wr.Channels=159]="Channels",Wr[Wr.BitDepth=25188]="BitDepth",Wr[Wr.SimpleBlock=163]="SimpleBlock",Wr[Wr.BlockGroup=160]="BlockGroup",Wr[Wr.Block=161]="Block",Wr[Wr.BlockAdditions=30113]="BlockAdditions",Wr[Wr.BlockMore=166]="BlockMore",Wr[Wr.BlockAdditional=165]="BlockAdditional",Wr[Wr.BlockAddID=238]="BlockAddID",Wr[Wr.BlockDuration=155]="BlockDuration",Wr[Wr.ReferenceBlock=251]="ReferenceBlock",Wr[Wr.Cluster=524531317]="Cluster",Wr[Wr.Timestamp=231]="Timestamp",Wr[Wr.Cues=475249515]="Cues",Wr[Wr.CuePoint=187]="CuePoint",Wr[Wr.CueTime=179]="CueTime",Wr[Wr.CueTrackPositions=183]="CueTrackPositions",Wr[Wr.CueTrack=247]="CueTrack",Wr[Wr.CueClusterPosition=241]="CueClusterPosition",Wr[Wr.Colour=21936]="Colour",Wr[Wr.MatrixCoefficients=21937]="MatrixCoefficients",Wr[Wr.TransferCharacteristics=21946]="TransferCharacteristics",Wr[Wr.Primaries=21947]="Primaries",Wr[Wr.Range=21945]="Range",Wr[Wr.Projection=30320]="Projection",Wr[Wr.ProjectionType=30321]="ProjectionType",Wr[Wr.ProjectionPoseRoll=30325]="ProjectionPoseRoll",Wr[Wr.Attachments=423732329]="Attachments",Wr[Wr.AttachedFile=24999]="AttachedFile",Wr[Wr.FileDescription=18046]="FileDescription",Wr[Wr.FileName=18030]="FileName",Wr[Wr.FileMediaType=18016]="FileMediaType",Wr[Wr.FileData=18012]="FileData",Wr[Wr.FileUID=18094]="FileUID",Wr[Wr.Chapters=272869232]="Chapters",Wr[Wr.Tags=307544935]="Tags",Wr[Wr.Tag=29555]="Tag",Wr[Wr.Targets=25536]="Targets",Wr[Wr.TargetTypeValue=26826]="TargetTypeValue",Wr[Wr.TargetType=25546]="TargetType",Wr[Wr.TagTrackUID=25541]="TagTrackUID",Wr[Wr.TagEditionUID=25545]="TagEditionUID",Wr[Wr.TagChapterUID=25540]="TagChapterUID",Wr[Wr.TagAttachmentUID=25542]="TagAttachmentUID",Wr[Wr.SimpleTag=26568]="SimpleTag",Wr[Wr.TagName=17827]="TagName",Wr[Wr.TagLanguage=17530]="TagLanguage",Wr[Wr.TagString=17543]="TagString",Wr[Wr.TagBinary=17541]="TagBinary",Wr[Wr.ContentEncodings=28032]="ContentEncodings",Wr[Wr.ContentEncoding=25152]="ContentEncoding",Wr[Wr.ContentEncodingOrder=20529]="ContentEncodingOrder",Wr[Wr.ContentEncodingScope=20530]="ContentEncodingScope",Wr[Wr.ContentCompression=20532]="ContentCompression",Wr[Wr.ContentCompAlgo=16980]="ContentCompAlgo",Wr[Wr.ContentCompSettings=16981]="ContentCompSettings",Wr[Wr.ContentEncryption=20533]="ContentEncryption";const Hr=[qr.EBML,qr.Segment],Vr=[qr.SeekHead,qr.Info,qr.Cluster,qr.Tracks,qr.Cues,qr.Attachments,qr.Chapters,qr.Tags],jr=[...Hr,...Vr],Kr=16,Xr=e=>{if(e.remainingLength<1)return null;const t=ac(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength<i?null:i},$r=e=>{if(e.remainingLength<1)return null;const t=ac(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength<i-1)return null;let a=t&r-1;for(let s=1;s<i;s++)a*=256,a+=ac(e);return a},Gr=(e,t)=>{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r<t;r++)i*=256,i+=ac(e);return i},Qr=e=>{const t=Xr(e);if(null===t)return null;if(e.remainingLength<t)return null;return Gr(e,t)},Yr=e=>{if(e.remainingLength<1)return null;if(255===ac(e))return;e.skip(-1);const t=$r(e);return null===t?null:72057594037927940!==t?t:void 0},Jr=e=>{j(e.remainingLength>=2);const t=Qr(e);if(null===t)return null;const i=Yr(e);return null===i?null:{id:t,size:i}},Zr=(e,t)=>{const i=rc(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return String.fromCharCode(...i.subarray(0,r))},ea=(e,t)=>{const i=rc(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return Z.decode(i.subarray(0,r))},ta=(e,t)=>{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?kc(e):yc(e)},ia=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;null===r||s<r;){let t=e.requestSliceRange(s,2,Kr);if(Xe(t)&&(t=await t),!t)break;const i=Jr(t);if(!i)break;if(a.has(i.id))return{pos:s,found:!0};ya(i.size),s=t.filePos+i.size}return{pos:null!==r&&r>s?r:s,found:!1}},ra=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;s<r;){let t=e.requestSliceRange(s,0,Math.min(65536,r-s));if(Xe(t)&&(t=await t),!t)break;if(t.length<8)break;for(let e=0;e<t.length-8;e++){t.filePos=s;const e=Qr(t);if(null!==e&&a.has(e))return s;s++}}return null},aa="V_MPEG4/ISO/AVC",sa="V_MPEGH/ISO/HEVC",na="V_VP8",oa="V_VP9",ca="V_AV1",la="V_PRORES",ua="A_AAC",ha="A_MPEG/L3",da="A_OPUS",fa="A_VORBIS",ma="A_FLAC",pa="A_AC3",ga="A_EAC3",ka="A_DTS";function ya(e){if(void 0===e)throw new Error("Undefined element size is used in a place where it is not supported.")}var ba,wa,Ta,Sa,va,Pa;(wa=ba||(ba={}))[wa.None=0]="None",wa[wa.Xiph=1]="Xiph",wa[wa.FixedSize=2]="FixedSize",wa[wa.Ebml=3]="Ebml",(Sa=Ta||(Ta={}))[Sa.Block=1]="Block",Sa[Sa.Private=2]="Private",Sa[Sa.Next=4]="Next",(Pa=va||(va={}))[Pa.Zlib=0]="Zlib",Pa[Pa.Bzlib=1]="Bzlib",Pa[Pa.lzo1x=2]="lzo1x",Pa[Pa.HeaderStripping=3]="HeaderStripping";const Ia=[{id:qr.SeekHead,flag:"seekHeadSeen"},{id:qr.Info,flag:"infoSeen"},{id:qr.Tracks,flag:"tracksSeen"},{id:qr.Cues,flag:"cuesSeen"}],xa=10485760;class Ca extends ir{constructor(e){super(e),this.readMetadataPromise=null,this.segments=[],this.currentSegment=null,this.currentTrack=null,this.currentCluster=null,this.currentBlock=null,this.currentBlockAdditional=null,this.currentCueTime=null,this.currentDecodingInstruction=null,this.currentTagTargetIsMovie=!0,this.currentSimpleTagName=null,this.currentAttachedFile=null,this.isWebM=!1,this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.segments.flatMap(e=>e.tracks.map(e=>e.trackBacking))}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>"video"===e.info?.type)),hasAudio:this.segments.some(e=>e.tracks.some(e=>"audio"===e.info?.type)),codecStrings:t.filter(Boolean)})}async getMetadataTags(){await this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&await this.loadSegmentMetadata(t),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e={...e,...t.metadataTags};return e}readMetadata(){return this.readMetadataPromise??(this.readMetadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,Kr);if(Xe(t)&&(t=await t),!t)break;const i=Jr(t);if(!i)break;const r=i.id;let a=i.size;const s=t.filePos;if(r===qr.EBML){ya(a);let e=this.reader.requestSlice(s,a);if(Xe(e)&&(e=await e),!e)break;this.readContiguousElements(e)}else if(r===qr.Segment){if(await this.readSegment(s,a),void 0===a)break;if(null===this.reader.fileSize)break}else if(r===qr.Cluster){if(null===this.reader.fileSize)break;if(void 0===a){a=(await ia(this.reader,s,jr,this.reader.fileSize)).pos-s}const e=X(this.segments);e&&(e.elementEndPos=s+a)}ya(a),e=s+a}})())}async readSegment(e,t){this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let i=e;for(;null===this.currentSegment.elementEndPos||i<this.currentSegment.elementEndPos;){let e=this.reader.requestSliceRange(i,2,Kr);if(Xe(e)&&(e=await e),!e)break;const t=i,r=Jr(e);if(!r||!Vr.includes(r.id)&&r.id!==qr.Void){const e=await ra(this.reader,t,Vr,Math.min(this.currentSegment.elementEndPos??1/0,t+xa));if(e){i=e;continue}break}const{id:a,size:s}=r,n=e.filePos,o=Ia.findIndex(e=>e.id===a);if(-1!==o){const e=Ia[o].flag;this.currentSegment[e]=!0,ya(s);let t=this.reader.requestSlice(n,s);Xe(t)&&(t=await t),t&&this.readContiguousElements(t)}else if(a===qr.Tags||a===qr.Attachments){a===qr.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,ya(s);let e=this.reader.requestSlice(n,s);Xe(e)&&(e=await e),e&&this.readContiguousElements(e)}else if(a===qr.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===s)break;i=n+s}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const n of this.currentSegment.seekEntries){const t=Ia.find(e=>e.id===n.id);if(!t)continue;if(this.currentSegment[t.flag])continue;let i=this.reader.requestSliceRange(e+n.segmentPosition,2,Kr);if(Xe(i)&&(i=await i),!i)continue;const r=Jr(i);if(!r)continue;const{id:a,size:s}=r;if(a!==t.id)continue;ya(s),this.currentSegment[t.flag]=!0;let o=this.reader.requestSlice(i.filePos,s);Xe(o)&&(o=await o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const n of this.currentSegment.tracks)null!==n.defaultDurationNs&&(n.defaultDuration=this.currentSegment.timestampFactor*n.defaultDurationNs/1e9);const r=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const n of this.currentSegment.cuePoints){const e=r.get(n.trackId);e&&e.cuePoints.push(n)}for(const n of this.currentSegment.tracks){n.cuePoints.sort((e,t)=>e.time-t.time);for(let e=0;e<n.cuePoints.length-1;e++){const t=n.cuePoints[e],i=n.cuePoints[e+1];t.time===i.time&&(n.cuePoints.splice(e+1,1),e--)}}let a=null,s=-1/0;for(const n of this.currentSegment.tracks)n.cuePoints.length>s&&(s=n.cuePoints.length,a=n);for(const n of this.currentSegment.tracks)0===n.cuePoints.length&&(n.cuePoints=a.cuePoints);this.currentSegment=null}async readCluster(e,t){if(t.lastReadCluster?.elementStartPos===e)return t.lastReadCluster;let i=this.reader.requestSliceRange(e,2,Kr);Xe(i)&&(i=await i),j(i);const r=e,a=Jr(i);j(a);j(a.id===qr.Cluster);let s=a.size;const n=i.filePos;if(void 0===s){s=(await ia(this.reader,n,jr,t.elementEndPos)).pos-n}let o=this.reader.requestSlice(n,s);Xe(o)&&(o=await o);const c={segment:t,elementStartPos:r,elementEndPos:n+s,dataStartPos:n,timestamp:-1,trackData:new Map};if(this.currentCluster=c,o){const e=this.readContiguousElements(o,jr);c.elementEndPos=e}for(const[,l]of c.trackData){const e=l.track;j(l.blocks.length>0);let t=!1;for(let r=0;r<l.blocks.length;r++){const e=l.blocks[r];e.timestamp+=c.timestamp,t||(t=e.lacing!==ba.None)}l.presentationTimestamps=l.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let r=0;r<l.presentationTimestamps.length;r++){const t=l.presentationTimestamps[r],i=l.blocks[t.blockIndex];if(null===l.firstKeyFrameTimestamp&&i.isKeyFrame&&(l.firstKeyFrameTimestamp=i.timestamp),r<l.presentationTimestamps.length-1){const e=l.presentationTimestamps[r+1];i.duration=e.timestamp-i.timestamp}else 0===i.duration&&null!=e.defaultDuration&&i.lacing===ba.None&&(i.duration=e.defaultDuration)}t&&(this.expandLacedBlocks(l.blocks,e),l.presentationTimestamps=l.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const i=l.blocks[l.presentationTimestamps[0].blockIndex],a=l.blocks[X(l.presentationTimestamps).blockIndex];l.startTimestamp=i.timestamp,l.endTimestamp=a.timestamp+a.duration;const s=pe(e.clusterPositionCache,l.startTimestamp,e=>e.startTimestamp);-1!==s&&e.clusterPositionCache[s].elementStartPos===r||e.clusterPositionCache.splice(s+1,0,{elementStartPos:c.elementStartPos,startTimestamp:l.startTimestamp})}return t.lastReadCluster=c,c}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){for(let i=0;i<e.length;i++){const r=e[i];if(r.lacing===ba.None)continue;r.decoded||(r.data=this.decodeBlockData(t,r.data),r.decoded=!0);const a=tc.tempFromBytes(r.data),s=[],n=ac(a)+1;switch(r.lacing){case ba.Xiph:{let e=0;for(let t=0;t<n-1;t++){let t=0;for(;a.bufferPos<a.length;){const i=ac(a);if(t+=i,i<255){s.push(t),e+=t;break}}}s.push(a.length-(a.bufferPos+e))}break;case ba.FixedSize:{const e=a.length-1,t=Math.floor(e/n);for(let i=0;i<n;i++)s.push(t)}break;case ba.Ebml:{const e=$r(a);j(null!==e);let t=e;s.push(t);let i=t;for(let r=1;r<n-1;r++){const e=a.bufferPos,r=$r(a);j(null!==r);t+=r-((1<<7*(a.bufferPos-e)-1)-1),s.push(t),i+=t}s.push(a.length-(a.bufferPos+i))}break;default:j(!1)}j(s.length===n),e.splice(i,1);const o=r.duration||n*(t.defaultDuration??0);for(let t=0;t<n;t++){const c=s[t],l=rc(a,c),u=r.timestamp+o*t/n,h=o/n;e.splice(i+t,0,{timestamp:u,duration:h,isKeyFrame:r.isKeyFrame,data:l,lacing:ba.None,decoded:!0,postProcessed:!1,mainAdditional:r.mainAdditional})}i+=n,i--}}async loadSegmentMetadata(e){for(const t of e.seekEntries){if(t.id!==qr.Tags||e.tagsSeen){if(t.id!==qr.Attachments||e.attachmentsSeen)continue}else;let i=this.reader.requestSliceRange(e.dataStartPos+t.segmentPosition,2,Kr);if(Xe(i)&&(i=await i),!i)continue;const r=Jr(i);if(!r||r.id!==t.id)continue;const{size:a}=r;ya(a),j(!this.currentSegment),this.currentSegment=e;let s=this.reader.requestSlice(i.filePos,a);Xe(s)&&(s=await s),s&&this.readContiguousElements(s),this.currentSegment=null,t.id===qr.Tags?e.tagsSeen=!0:t.id===qr.Attachments&&(e.attachmentsSeen=!0)}}readContiguousElements(e,t){for(;e.remainingLength>=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){const i=Jr(e);if(!i)return!1;if(t&&t.includes(i.id))return!1;const{id:r,size:a}=i,s=e.filePos;switch(ya(a),r){case qr.DocType:this.isWebM="webm"===Zr(e,a);break;case qr.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(s,a)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case qr.SeekID:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=Gr(e,a)}break;case qr.SeekPosition:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=Gr(e,a)}break;case qr.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=Gr(e,a),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case qr.Duration:if(!this.currentSegment)break;this.currentSegment.duration=ta(e,a);break;case qr.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:{...ht,primary:!1},trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(s,a)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>"decompress"!==e.data?.type||e.scope!==Ta.Block||e.data.algorithm!==va.HeaderStripping)&&(ct._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===aa)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===sa)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===na)this.currentTrack.info.codec="vp8";else if(t===oa)this.currentTrack.info.codec="vp9";else if(t===ca)this.currentTrack.info.codec="av1";else if(t===la){const e=this.currentTrack.codecPrivate?Z.decode(this.currentTrack.codecPrivate):"";Oi.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new Ea(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===ua?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===ha?this.currentTrack.info.codec="mp3":t===da?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=Wi):t===fa?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===ma?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===pa?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===ga?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===ka?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new _a(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case qr.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=Gr(e,a);break;case qr.TrackType:{if(!this.currentTrack)break;const t=Gr(e,a);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:{...ce},alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case qr.FlagEnabled:if(!this.currentTrack)break;Gr(e,a)||(this.currentTrack=null);break;case qr.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!Gr(e,a);break;case qr.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!Gr(e,a);break;case qr.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!Gr(e,a);break;case qr.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!Gr(e,a);break;case qr.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!Gr(e,a);break;case qr.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!Gr(e,a);break;case qr.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=Zr(e,a);break;case qr.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=rc(e,a);break;case qr.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=Gr(e,a);break;case qr.Name:if(!this.currentTrack)break;this.currentTrack.name=ea(e,a);break;case qr.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=Zr(e,a),Ae(this.currentTrack.languageCode)||(this.currentTrack.languageCode=xe);break;case qr.LanguageBCP47:{if(!this.currentTrack)break;const t=Zr(e,a).split("-")[0];this.currentTrack.languageCode=t||xe,this.currentTrack.hasLanguageBcp47=!0}break;case qr.Video:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.PixelWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.width=Gr(e,a);break;case qr.PixelHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.height=Gr(e,a);break;case qr.DisplayWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayWidth=Gr(e,a);break;case qr.DisplayHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayHeight=Gr(e,a);break;case qr.DisplayUnit:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayUnit=Gr(e,a);break;case qr.AlphaMode:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.alphaMode=1===Gr(e,a);break;case qr.Colour:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.MatrixCoefficients:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a),i=ne[t];this.currentTrack.info.colorSpace.matrix=i}break;case qr.Range:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case qr.TransferCharacteristics:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a),i=ae[t];this.currentTrack.info.colorSpace.transfer=i}break;case qr.Primaries:{if("video"!==this.currentTrack?.info?.type)break;const t=Gr(e,a),i=ie[t];this.currentTrack.info.colorSpace.primaries=i}break;case qr.Projection:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.ProjectionPoseRoll:{if("video"!==this.currentTrack?.info?.type)break;const t=-ta(e,a);try{this.currentTrack.info.rotation=K(t)}catch{}}break;case qr.Audio:if("audio"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case qr.SamplingFrequency:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.sampleRate=ta(e,a);break;case qr.Channels:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.numberOfChannels=Gr(e,a);break;case qr.BitDepth:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.bitDepth=Gr(e,a);break;case qr.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(s,a)),this.currentCueTime=null;break;case qr.CueTime:this.currentCueTime=Gr(e,a);break;case qr.CueTrackPositions:{if(null===this.currentCueTime)break;j(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(s,a)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case qr.CueTrack:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=Gr(e,a)}break;case qr.CueClusterPosition:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;j(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+Gr(e,a)}break;case qr.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=Gr(e,a);break;case qr.SimpleBlock:{if(!this.currentCluster)break;const t=$r(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=cc(e),n=ac(e),o=n>>1&3;let c=!!(128&n);"audio"===i.track.info?.type&&i.track.info.codec&&(c=!0);const l=rc(e,a-(e.filePos-s)),u=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:c,data:l,lacing:o,decoded:!u,postProcessed:!1,mainAdditional:null})}break;case qr.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(s,a)),this.currentBlock=null;break;case qr.Block:{if(!this.currentCluster)break;const t=$r(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=cc(e),n=ac(e)>>1&3,o=rc(e,a-(e.filePos-s)),c=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:o,lacing:n,decoded:!c,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case qr.BlockAdditions:this.readContiguousElements(e.slice(s,a));break;case qr.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(s,a)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case qr.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=rc(e,a);break;case qr.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=Gr(e,a);break;case qr.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=Gr(e,a);break;case qr.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case qr.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(s,a));break;case qr.Targets:this.readContiguousElements(e.slice(s,a));break;case qr.TargetTypeValue:50!==Gr(e,a)&&(this.currentTagTargetIsMovie=!1);break;case qr.TagTrackUID:case qr.TagEditionUID:case qr.TagChapterUID:case qr.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case qr.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(s,a));break;case qr.TagName:this.currentSimpleTagName=ea(e,a);break;case qr.TagString:{if(!this.currentSimpleTagName)break;const t=ea(e,a);this.processTagValue(this.currentSimpleTagName,t)}break;case qr.TagBinary:{if(!this.currentSimpleTagName)break;const t=rc(e,a);this.processTagValue(this.currentSimpleTagName,t)}break;case qr.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(s,a));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(t.raw??(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new ut(this.currentAttachedFile.fileData,this.currentAttachedFile.fileMediaType??void 0,this.currentAttachedFile.fileName??void 0,this.currentAttachedFile.fileDescription??void 0)),this.currentAttachedFile.fileMediaType?.startsWith("image/")&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}t.images??(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:this.currentAttachedFile.fileName??void 0,description:this.currentAttachedFile.fileDescription??void 0})}this.currentAttachedFile=null}break;case qr.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=0n;for(let r=0;r<t;r++)i<<=8n,i+=BigInt(ac(e));return i})(e,a);break;case qr.FileName:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=ea(e,a);break;case qr.FileMediaType:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=Zr(e,a);break;case qr.FileData:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=rc(e,a);break;case qr.FileDescription:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=ea(e,a);break;case qr.ContentEncodings:if(!this.currentTrack)break;this.readContiguousElements(e.slice(s,a)),this.currentTrack.decodingInstructions.sort((e,t)=>t.order-e.order);break;case qr.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Ta.Block,data:null},this.readContiguousElements(e.slice(s,a)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case qr.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=Gr(e,a);break;case qr.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=Gr(e,a);break;case qr.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:va.Zlib,settings:null},this.readContiguousElements(e.slice(s,a));break;case qr.ContentCompAlgo:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.algorithm=Gr(e,a);break;case qr.ContentCompSettings:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.settings=rc(e,a);break;case qr.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=s+a,!0}decodeBlockData(e,t){j(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(j(r.data),"decompress"===r.data.type)if(r.data.algorithm===va.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i;if(!this.currentSegment?.metadataTags)return;const r=this.currentSegment.metadataTags;if(r.raw??(r.raw={}),(i=r.raw)[e]??(i[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":r.title??(r.title=t);break;case"description":r.description??(r.description=t);break;case"artist":r.artist??(r.artist=t);break;case"album":r.album??(r.album=t);break;case"album_artist":r.albumArtist??(r.albumArtist=t);break;case"genre":r.genre??(r.genre=t);break;case"comment":r.comment??(r.comment=t);break;case"lyrics":r.lyrics??(r.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||(r.date??(r.date=e))}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.trackNumber??(r.trackNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.tracksTotal??(r.tracksTotal=a))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.discNumber??(r.discNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.discsTotal??(r.discsTotal=a))}}}async getDurationFromMetadata(e){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){j(r.trackBacking);const e=await r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(t??1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=t??0,i}}class Ba{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)}async getLiveRefreshInterval(){return null}async getFirstPacket(e){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)}intoTimescale(e){return Ce(e*this.internalTrack.segment.timestampFactor)}async getPacket(e,t){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=pe(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)}async getNextPacket(e,t){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1<t.blocks.length)return{blockIndex:i.blockIndex+1,correctBlockFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{blockIndex:0,correctBlockFound:!0}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)}async getKeyPacket(e,t){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=we(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)}async getNextKeyPacket(e,t){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return j(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)}async fetchPacketInCluster(e,t,i){if(-1===t)return null;const r=e.trackData.get(this.internalTrack.id).blocks[t];if(j(r),r.decoded||(r.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,r.data),r.decoded=!0),!r.postProcessed){if("prores"===this.internalTrack.info?.codec){if(!(r.data.length>=8&&105===r.data[4]&&99===r.data[5]&&112===r.data[6]&&102===r.data[7])){const e=new Uint8Array(r.data.length+8);J(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(r.data,8),r.data=e}}r.postProcessed=!0}const a=i.metadataOnly?rr:r.data,s=r.timestamp/this.internalTrack.segment.timestampFactor,n=r.duration/this.internalTrack.segment.timestampFactor,o={};r.mainAdditional&&"video"===this.internalTrack.info?.type&&this.internalTrack.info.alphaMode&&(o.alpha=i.metadataOnly?rr:r.mainAdditional,o.alphaByteLength=r.mainAdditional.byteLength);const c=new ar(a,r.isKeyFrame?"key":"delta",s,n,e.dataStartPos+t,r.data.byteLength,o);return this.packetToClusterLocation.set(c,{cluster:e,blockIndex:t}),c}async performClusterLookup(e,t,i,r,a){const{demuxer:s,segment:n}=this.internalTrack;let o=null,c=null,l=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,a);-1!==i&&(c=e,l=i)}const u=pe(this.internalTrack.cuePoints,i,e=>e.time),h=-1!==u?this.internalTrack.cuePoints[u]:null,d=pe(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),f=-1!==d?this.internalTrack.clusterPositionCache[d]:null,m=Math.max(h?.clusterPosition??0,f?.elementStartPos??0)||null;let p;for(e?null===m||e.elementStartPos>=m?(p=e.elementEndPos,o=e):p=m:p=m??n.clusterSeekStartPos;null===n.elementEndPos||p<=n.elementEndPos-2;){if(o){const e=o.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=s.reader.requestSliceRange(p,2,Kr);if(Xe(e)&&(e=await e),!e)break;const i=p,u=Jr(e);if(!u||!Vr.includes(u.id)&&u.id!==qr.Void){const e=await ra(s.reader,i,Vr,Math.min(n.elementEndPos??1/0,i+xa));if(e){p=e;continue}break}const h=u.id;let d=u.size;const f=e.filePos;if(h===qr.Cluster){o=await s.readCluster(i,n),d=o.elementEndPos-f;const{blockIndex:e,correctBlockFound:r}=t(o);if(r)return this.fetchPacketInCluster(o,e,a);-1!==e&&(c=o,l=e)}if(void 0===d){j(h!==qr.Cluster);d=(await ia(s.reader,f,jr,n.elementEndPos)).pos-f}const m=f+d;if(null===n.elementEndPos){let e=s.reader.requestSliceRange(m,2,Kr);if(Xe(e)&&(e=await e),!e)break;if(Qr(e)===qr.Segment){n.elementEndPos=m;break}}p=m}if(h&&(!c||c.elementStartPos<h.clusterPosition)){const e=this.internalTrack.cuePoints[u-1];j(!e||e.time<h.time);const i=e?.time??-1/0;return this.performClusterLookup(null,t,i,r,a)}return c?this.fetchPacketInCluster(c,l,a):null}}class Ea extends Ba{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.info.rotation}async getColorSpace(){const e=await this.getDecoderConfig();return e?{primaries:e.colorSpace?.primaries,transfer:e.colorSpace?.transfer,matrix:e.colorSpace?.matrix,fullRange:e.colorSpace?.fullRange}:this.internalTrack.info.colorSpace}async canBeTransparent(){return this.internalTrack.info.alphaMode||"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{var e,t,i,r;let a=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(a=await this.getFirstPacket({}));const s={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&a?Ft(a.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&a?Wt(a.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&a?ei(a.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&a?ii(a.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&a?ri(a.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!oe(this.internalTrack.info.colorSpace)){const a=Ui(s);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const n={codec:zi(s),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(n.displayAspectWidth=this.internalTrack.info.squarePixelWidth,n.displayAspectHeight=this.internalTrack.info.squarePixelHeight),n})()):null}}class _a extends Ba{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&xi(e.data)}return{codec:qi({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Ra=async(e,t,i,r=null)=>{let a=t;for(;null===i||a<i;){const t=null!==i?Math.min(65536,i-a):65536;let s=e.requestSliceRange(a,4,t);if(Xe(s)&&(s=await s),!s||s.length<4)break;for(;s.remainingLength>=4;){const t=s.filePos,i=uc(s),n=null!==e.fileSize?e.fileSize-a:null,o=Yi(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&tr(o.header.channel)===tr(r.channel)))return{header:o.header,startPos:a};s.filePos=t+o.bytesAdvanced,a=s.filePos}}return null};class Fa extends ir{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new ue,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new Aa(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,xc);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=_c(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=await Ra(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=Qi(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(Xe(r)&&(r=await r),r){const a=uc(r);if(a===$i||a===Gi){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(Xe(t)&&(t=await t),t){const e=rc(t,12),i=J(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&Zi.FrameCount?i.getUint32(4,!1):null,fileSize:r&Zi.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const a=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:a,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame}async getMimeType(){return"audio/mpeg"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=!0;let a=this.reader.requestSlice(i.filePos,r.size);if(Xe(a)&&(a=await a),!a)break;Rc(a,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=Ic){let e=this.reader.requestSlice(this.reader.fileSize-Ic,Ic);Xe(e)&&(e=await e),j(e);"TAG"===bc(e,3)&&Bc(e,this.metadataTags)}return this.metadataTags}finally{e()}}}class Aa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return j(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.demuxer;if(j(null!==e.firstFrameHeader),j(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,a=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(a<<t):2===i?144*r/a:12*r/a*4),n=(e.reader.fileSize-e.firstFrameHeaderPos)/s;return Math.round(n)*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}var t,i,r,a;return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return xe}getCodec(){return"mp3"}getInternalCodecId(){return null}getNumberOfChannels(){return j(this.demuxer.firstFrameHeader),tr(this.demuxer.firstFrameHeader.channel)}getSampleRate(){return j(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}getDisposition(){return{...ht}}async getDecoderConfig(){return j(this.demuxer.firstFrameHeader),{codec:"mp3",numberOfChannels:tr(this.demuxer.firstFrameHeader.channel),sampleRate:this.demuxer.firstFrameHeader.sampleRate}}async getPacketAtIndex(e,t){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=rr;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Xe(e)&&(e=await e),!e)return null;r=rc(e,i.dataSize)}return new ar(r,"key",i.timestamp,i.duration,e,i.dataSize)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=me(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=pe(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);await this.demuxer.advanceReader()}}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Ma=1399285583,Da=new Uint32Array(256);for(let hl=0;hl<256;hl++){let e=hl<<24;for(let t=0;t<8;t++)e=2147483648&e?e<<1^79764919:e<<1;Da[hl]=e>>>0&4294967295}const Na=e=>{const t=J(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let a=0;a<e.length;a++){const t=e[a];r=(r<<8^Da[r>>>24^t])>>>0}return t.setUint32(22,i,!0),r},Oa=(e,t,i)=>{let r=0,a=null;if(e.length>0)if("vorbis"===t.codec){j(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,n=(e[0]&s)>>1;if(n>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let o=i;const c=t.vorbisInfo.modeBlockflags[n];if(a=t.vorbisInfo.blocksizes[c],1===c){const i=1+(1|s),r=e[0]&i?1:0;o=t.vorbisInfo.blocksizes[r]}r=null!==o?o+a>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:ai[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:a}},La=27,za=282,Ua=e=>{const t=e.filePos;if(hc(e)!==Ma)return null;e.skip(1);const i=ac(e),r=gc(e),a=hc(e),s=hc(e),n=hc(e),o=ac(e),c=new Uint8Array(o);for(let h=0;h<o;h++)c[h]=ac(e);const l=27+o,u=c.reduce((e,t)=>e+t,0);return{headerStartPos:t,totalSize:l+u,dataStartPos:t+l,dataSize:u,headerType:i,granulePosition:r,serialNumber:a,sequenceNumber:s,checksum:n,lacingValues:c}},qa=(e,t)=>{for(;e.filePos<t-3;){const t=hc(e),i=79;if((255&t)===i||(t>>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===Ma)return!0;e.skip(1)}}return!1};class Wa extends ir{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,La,za);if(Xe(t)&&(t=await t),!t)break;const i=Ua(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=await this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?await this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&await this.readOpusMetadata(e,t),null!==t.codecInfo.codec&&this.trackBackings.push(new Ha(t,this)))}})())}async readVorbisMetadata(e,t){let i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=await this.findNextPacketStart(r),!i)return;const a=await this.readPacket(i.startPage,i.startSegmentIndex);if(!a)return;if(3!==r.data[0]||5!==a.data[0])return;const s=[],n=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};n(e.data.length),n(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+a.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(a.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=a;const c=J(e.data);t.numberOfChannels=c.getUint8(11),t.sampleRate=c.getUint32(12,!0);const l=c.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&l),1<<(l>>4)],modeBlockflags:si(a.data).modeBlockflags},li(r.data.subarray(7),this.metadataTags)}async readOpusMetadata(e,t){const i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const a=(e=>{const t=J(e),i=t.getUint8(9),r=t.getUint16(10,!0),a=t.getUint32(12,!0),s=t.getInt16(16,!0),n=t.getUint8(18);let o=null;return n&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:a,outputGain:s,channelMappingFamily:n,channelMappingTable:o}})(e.data);t.numberOfChannels=a.outputChannelCount,t.sampleRate=Wi,t.codecInfo.opusInfo={preSkip:a.preSkip},li(r.data.subarray(8),this.metadataTags)}async readPacket(e,t){j(t<e.lacingValues.length);let i=0;for(let u=0;u<t;u++)i+=e.lacingValues[u];let r=e,a=i,s=t;const n=[];e:for(;;){let t=this.reader.requestSlice(r.dataStartPos,r.dataSize);Xe(t)&&(t=await t),j(t);const o=rc(t,r.dataSize);for(;;){if(s===r.lacingValues.length){n.push(o.subarray(i,a));break}const e=r.lacingValues[s];if(a+=e,e<255){n.push(o.subarray(i,a));break e}s++}let c=r.headerStartPos+r.totalSize;for(;;){let t=this.reader.requestSliceRange(c,La,za);if(Xe(t)&&(t=await t),!t)return null;const i=Ua(t);if(!i)return null;if(r=i,r.serialNumber===e.serialNumber)break;c=r.headerStartPos+r.totalSize}i=0,a=0,s=0}const o=n.reduce((e,t)=>e+t.length,0);if(0===o)return null;const c=new Uint8Array(o);let l=0;for(let u=0;u<n.length;u++){const e=n[u];c.set(e,l),l+=e.length}return{data:c,endPage:r,endSegmentIndex:s}}async findNextPacketStart(e){if(e.endSegmentIndex<e.endPage.lacingValues.length-1)return{startPage:e.endPage,startSegmentIndex:e.endSegmentIndex+1};if(!!(4&e.endPage.headerType))return null;let t=e.endPage.headerStartPos+e.endPage.totalSize;for(;;){let i=this.reader.requestSliceRange(t,La,za);if(Xe(i)&&(i=await i),!i)return null;const r=Ua(i);if(!r)return null;if(r.serialNumber===e.endPage.serialNumber)return{startPage:r,startSegmentIndex:0};t=r.headerStartPos+r.totalSize}}async getMimeType(){await this.readMetadata();return(e=>{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(await Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)))).filter(Boolean)})}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}class Ha{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new ue,this.internalSampleRate="opus"===e.codecInfo.codec?Wi:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return j(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}async getDecoderConfig(){return j(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:this.bitstream.description??void 0}}getName(){return null}getLanguageCode(){return xe}getDisposition(){return{...ht,primary:!1}}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(j(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:a}=Oa(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new ar(i.metadataOnly?rr:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:a}),s}async getFirstPacket(e){j(this.bitstream.lastMetadataPacket);const t=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(j(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=await this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)}async getNextPacket(e,t){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=await this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const a=i.timestampInSamples+i.durationInSamples,s=await this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:a,vorbisLastBlocksize:i.vorbisBlockSize},t)}async getPacket(e,t){if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const i=Ce(e*this.internalSampleRate);if(0===i)return this.getFirstPacket(t);if(i<0)return null;j(this.bitstream.lastMetadataPacket);const r=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!r)return null;let a=r.startPage,s=this.demuxer.reader.fileSize;const n=[a];e:for(;a.headerStartPos+a.totalSize<s;){const e=a.headerStartPos,t=Math.floor((e+s)/2);let r=t;for(;;){const e=Math.min(r+65307,s-La);let o=this.demuxer.reader.requestSlice(r,e-r);Xe(o)&&(o=await o),j(o);if(!qa(o,e)){s=t+La;continue e}let c=this.demuxer.reader.requestSliceRange(o.filePos,La,za);Xe(c)&&(c=await c),j(c);const l=Ua(c);j(l);let u=!1;if(l.serialNumber===this.bitstream.serialNumber)u=!0;else{let e=this.demuxer.reader.requestSlice(l.headerStartPos,l.totalSize);Xe(e)&&(e=await e),j(e);const t=rc(e,l.totalSize);u=Na(t)===l.checksum}if(!u){r=l.headerStartPos+4;continue}if(u&&l.serialNumber!==this.bitstream.serialNumber){r=l.headerStartPos+l.totalSize;continue}if(!(-1===l.granulePosition)){this.granulePositionToTimestampInSamples(l.granulePosition)>i?s=l.headerStartPos:(a=l,n.push(l));continue e}r=l.headerStartPos+l.totalSize}}let o=r.startPage;for(const k of n){if(k.granulePosition===a.granulePosition)break;(!o||k.headerStartPos>o.headerStartPos)&&(o=k)}let c=o;const l=[c];for(;c.serialNumber!==this.bitstream.serialNumber||c.granulePosition!==a.granulePosition;){const e=c.headerStartPos+c.totalSize;let t=this.demuxer.reader.requestSliceRange(e,La,za);Xe(t)&&(t=await t),j(t);const i=Ua(t);j(i),c=i,c.serialNumber===this.bitstream.serialNumber&&l.push(c)}j(-1!==c.granulePosition);let u,h,d=null,f=c,m=0;if(c.headerStartPos===r.startPage.headerStartPos)u=this.granulePositionToTimestampInSamples(0),h=!0,d=0;else{u=0,h=!1;for(let t=c.lacingValues.length-1;t>=0;t--){if(c.lacingValues[t]<255){d=t+1;break}}if(null===d)throw new Error("Invalid page with granule position: no packets end on this page.");m=d-1;const e={data:rr,endPage:f,endSegmentIndex:m};if(await this.demuxer.findNextPacketStart(e)){const e=ja(l,c,d);j(e);const t=Va(l,e.page,e.segmentIndex);t&&(c=t.page,d=t.segmentIndex)}else for(;;){const e=ja(l,c,d);if(!e)break;const t=Va(l,e.page,e.segmentIndex);if(!t)break;if(c=t.page,d=t.segmentIndex,e.page.headerStartPos!==f.headerStartPos){f=e.page,m=e.segmentIndex;break}}}let p=null,g=null;for(;null!==c;){j(null!==d);const e=await this.demuxer.readPacket(c,d);if(!e)break;if(!(c.headerStartPos===r.startPage.headerStartPos&&d<r.startSegmentIndex)){let r=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:u,vorbisLastBlocksize:g?.vorbisBlockSize??null},t);j(r);let a=this.encodedPacketToMetadata.get(r);if(j(a),h||e.endPage.headerStartPos!==f.headerStartPos||e.endSegmentIndex!==m?u+=a.durationInSamples:(u=this.granulePositionToTimestampInSamples(c.granulePosition),h=!0,r=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:u-a.durationInSamples,vorbisLastBlocksize:g?.vorbisBlockSize??null},t),j(r),a=this.encodedPacketToMetadata.get(r),j(a)),p=r,g=a,h&&(Math.max(u,0)>i||Math.max(a.timestampInSamples,0)===i))break}const a=await this.demuxer.findNextPacketStart(e);if(!a)break;c=a.startPage,d=a.startSegmentIndex}return p}async getPacketSequential(e,t){const i=await this.sequentialScanMutex.acquire();try{const i=Ce(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=pe(this.sequentialScanCache,i,e=>e.timestampInSamples);let a;if(-1!==r){const e=this.sequentialScanCache[r];a=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else a=await this.getFirstPacket(t);let s=0;for(;a&&a.timestamp<e;){const i=await this.getNextPacket(a,t);if(!i||i.timestamp>e)break;if(a=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(a);j(e),this.sequentialScanCache.length>0&&j(X(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return a}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Va=(e,t,i)=>{let r=t,a=i;e:for(;;){for(a--;a>=0;a--){if(r.lacingValues[a]<255){a++;break e}}j(-1===a);if(!(1&r.headerType)){a=0;break}const t=be(e,e=>e.headerStartPos<r.headerStartPos);if(!t)return null;r=t,a=r.lacingValues.length}if(j(-1!==a),a===r.lacingValues.length){const t=e[e.indexOf(r)+1];j(t),r=t,a=0}return{page:r,segmentIndex:a}},ja=(e,t,i)=>{if(i>0)return{page:t,segmentIndex:i-1};const r=be(e,e=>e.headerStartPos<t.headerStartPos);return r?{page:r,segmentIndex:r.lacingValues.length-1}:null};var Ka,Xa;(Xa=Ka||(Ka={}))[Xa.PCM=1]="PCM",Xa[Xa.IEEE_FLOAT=3]="IEEE_FLOAT",Xa[Xa.ALAW=6]="ALAW",Xa[Xa.MULAW=7]="MULAW",Xa[Xa.EXTENSIBLE=65534]="EXTENSIBLE";class $a extends ir{constructor(e){super(e),this.metadataPromise=null,this.dataStart=-1,this.dataSize=-1,this.audioInfo=null,this.trackBackings=[],this.lastKnownPacketIndex=0,this.metadataTags={},this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=this.reader.requestSlice(0,12);Xe(e)&&(e=await e),j(e);const t=bc(e,4),i="RIFX"!==t,r="RF64"===t,a=lc(e,i);let s=r?this.reader.fileSize:Math.min(a+8,this.reader.fileSize??1/0);if("WAVE"!==bc(e,4))throw new Error("Invalid WAVE file - wrong format");let n=0,o=null,c=e.filePos;for(;null===s||c<s;){let e=this.reader.requestSlice(c,8);if(Xe(e)&&(e=await e),!e)break;const t=bc(e,4),a=lc(e,i),l=e.filePos;if(r&&0===n&&"ds64"!==t)throw new Error('Invalid RF64 file: First chunk must be "ds64".');if("fmt "===t)await this.parseFmtChunk(l,a,i);else if("data"===t){if(o??(o=a),this.dataStart=e.filePos,this.dataSize=Math.min(o,(s??1/0)-this.dataStart),null===this.reader.fileSize)break}else if("ds64"===t){let e=this.reader.requestSlice(l,a);if(Xe(e)&&(e=await e),!e)break;const t=fc(e,i);o=fc(e,i),s=Math.min(t+8,this.reader.fileSize??1/0)}else"LIST"===t?await this.parseListChunk(l,a,i):"ID3 "!==t&&"id3 "!==t||await this.parseId3Chunk(l,a);c=l+a+(1&a),n++}if(!this.audioInfo)throw new Error('Invalid WAVE file - missing "fmt " chunk');if(-1===this.dataStart)throw new Error('Invalid WAVE file - missing "data" chunk');const l=this.audioInfo.blockSizeInBytes;this.dataSize=Math.floor(this.dataSize/l)*l,this.trackBackings.push(new Qa(this))})())}async parseFmtChunk(e,t,i){let r=this.reader.requestSlice(e,t);if(Xe(r)&&(r=await r),!r)return;let a=sc(r,i);const s=sc(r,i),n=lc(r,i);r.skip(4);const o=sc(r,i);let c;if(c=14===t?8:sc(r,i),t>=18&&357!==a){const e=sc(r,i),s=t-18;if(Math.min(s,e)>=22&&a===Ka.EXTENSIBLE){r.skip(6);const e=rc(r,16);a=e[0]|e[1]<<8}}if(a!==Ka.MULAW&&a!==Ka.ALAW||(c=8),a!==Ka.PCM&&a!==Ka.IEEE_FLOAT&&a!==Ka.ALAW&&a!==Ka.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${a}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(a===Ka.PCM&&![8,16,24,32].includes(c))throw new Error(`Unsupported WAVE PCM bit depth (${c}). Only 8, 16, 24, and 32 bits are supported.`);if(a===Ka.IEEE_FLOAT&&![32,64].includes(c))throw new Error(`Unsupported WAVE float bit depth (${c}). Only 32 and 64 bits are supported.`);this.audioInfo={format:a,numberOfChannels:s,sampleRate:n,sampleSizeInBytes:Math.ceil(c/8),blockSizeInBytes:o}}async parseListChunk(e,t,i){var r,a,s,n,o,c,l,u,h,d,f;let m=this.reader.requestSlice(e,t);if(Xe(m)&&(m=await m),!m)return;const p=bc(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=bc(m,4),t=lc(m,i),p=rc(m,t);let k=0;for(let i=0;i<p.length&&0!==p[i];i++)k++;const y=String.fromCharCode(...p.subarray(0,k));switch((r=this.metadataTags).raw??(r.raw={}),this.metadataTags.raw[e]=y,e){case"INAM":case"TITL":(a=this.metadataTags).title??(a.title=y);break;case"TIT3":(s=this.metadataTags).description??(s.description=y);break;case"IART":(n=this.metadataTags).artist??(n.artist=y);break;case"IPRD":(o=this.metadataTags).album??(o.album=y);break;case"IPRT":case"ITRK":case"TRCK":{const e=y.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&((c=this.metadataTags).trackNumber??(c.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((l=this.metadataTags).tracksTotal??(l.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||((u=this.metadataTags).date??(u.date=e))}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&((h=this.metadataTags).date??(h.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":(d=this.metadataTags).genre??(d.genre=y);break;case"ICMT":case"CMNT":case"COMM":(f=this.metadataTags).comment??(f.comment=y)}g+=8+t+(1&t)}}async parseId3Chunk(e,t){let i=this.reader.requestSlice(e,t);if(Xe(i)&&(i=await i),!i)return;const r=_c(i);if(r){const a=t-xc;if(r.size=Math.min(r.size,a),r.size>0){const t=i.slice(e+xc,r.size);Rc(t,r,this.metadataTags)}}}getCodec(){if(j(this.audioInfo),this.audioInfo.format===Ka.MULAW)return"ulaw";if(this.audioInfo.format===Ka.ALAW)return"alaw";if(this.audioInfo.format===Ka.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===Ka.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}j(!1)}async getMimeType(){return"audio/wav"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}const Ga=2048;class Qa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.format}async getDecoderConfig(){const e=this.demuxer.getCodec();return e?(j(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null}getNumberOfChannels(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return j(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return xe}getDisposition(){return{...ht}}async getPacketAtIndex(e,t){j(e>=0),j(this.demuxer.audioInfo);const i=e*Ga*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(Ga*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(Xe(e)&&(e=await e),!e)return null}let a;if(t.metadataOnly)a=rr;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);Xe(e)&&(e=await e),j(e),a=rc(e,r)}const s=e*Ga/this.demuxer.audioInfo.sampleRate,n=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new ar(a,"key",s,n,e,r)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getPacket(e,t){j(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/Ga,(this.demuxer.dataSize-1)/(Ga*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=await this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;j(null===this.demuxer.reader.fileSize);let a=await this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;a;){const e=await this.getNextPacket(a,t);if(!e)break;a=e}return a}getNextPacket(e,t){j(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/Ga);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Ya=e=>{const t=e.filePos,i=rc(e,9),r=new dt(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const a=r.readBits(1),s=r.readBits(2)+1,n=r.readBits(4);if(15===n)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const c=r.readBits(13);r.skipBits(11);const l=r.readBits(2)+1;if(1!==l)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===a?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:n,channelConfiguration:o,frameLength:c,numberOfAacFrames:l,crcCheck:u,startPos:t}},Ja=1024;class Za extends ir{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new ue,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();j(this.firstFrameHeader),this.trackBackings=[new es(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,xc);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=_c(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=Ya(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=ft[t.samplingFrequencyIndex];j(void 0!==i);const r=Ja/i,a={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(a),this.nextTimestampInSamples+=Ja,this.lastLoadedPos=t.startPos+t.frameLength}async getMimeType(){return"audio/aac"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,xc);if(Xe(t)&&(t=await t),!t)break;const i=_c(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(Xe(r)&&(r=await r),!r)break;Rc(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}}}class es{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/Ja}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return xe}getCodec(){return"aac"}getInternalCodecId(){return j(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){j(this.demuxer.firstFrameHeader);const e=mt[this.demuxer.firstFrameHeader.channelConfiguration];return j(void 0!==e),e}getSampleRate(){j(this.demuxer.firstFrameHeader);const e=ft[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return j(void 0!==e),e}getDisposition(){return{...ht}}async getDecoderConfig(){return j(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}}async getPacketAtIndex(e,t){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=rr;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Xe(e)&&(e=await e),!e)return null;r=rc(e,i.dataSize)}return new ar(r,"key",i.timestamp,i.duration,e,i.dataSize)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=me(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=pe(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);await this.demuxer.advanceReader()}}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}class ts extends ir{constructor(e){super(e),this.loadedSamples=[],this.metadataPromise=null,this.trackBacking=null,this.metadataTags={},this.audioInfo=null,this.lastLoadedPos=null,this.blockingBit=null,this.readingMutex=new ue,this.lastSampleLoaded=!1,this.reader=e._reader}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}async getTrackBackings(){return await this.readMetadata(),j(this.trackBacking),[this.trackBacking]}async getMimeType(){return"audio/flac"}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{var e;let t=0;for(;;){let e=this.reader.requestSlice(t,xc);if(Xe(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const i=_c(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);Xe(r)&&(r=await r),j(r),Rc(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||t<this.reader.fileSize;){let i=this.reader.requestSlice(t,4);if(Xe(i)&&(i=await i),t+=4,null===i)throw new Error(`Metadata block at position ${t} is too small! Corrupted file.`);j(i);const r=ac(i),a=oc(i),s=0!==(128&r);switch(127&r){case oi.STREAMINFO:{let e=this.reader.requestSlice(t,a);if(Xe(e)&&(e=await e),j(e),null===e)throw new Error(`StreamInfo block at position ${t} is too small! Corrupted file.`);const i=rc(e,34),r=new dt(i),s=r.readBits(16),n=r.readBits(16),o=r.readBits(24),c=r.readBits(24),l=r.readBits(20),u=r.readBits(3)+1;r.readBits(5);const h=r.readBits(36);r.skipBits(128);const d=new Uint8Array(42);d.set(new Uint8Array([102,76,97,67]),0),d.set(new Uint8Array([128,0,0,34]),4),d.set(i,8),this.audioInfo={numberOfChannels:u,sampleRate:l,totalSamples:h,minimumBlockSize:s,maximumBlockSize:n,minimumFrameSize:o,maximumFrameSize:c,description:d},this.trackBacking=new is(this);break}case oi.VORBIS_COMMENT:{let e=this.reader.requestSlice(t,a);Xe(e)&&(e=await e),j(e),li(rc(e,a),this.metadataTags);break}case oi.PICTURE:{let i=this.reader.requestSlice(t,a);Xe(i)&&(i=await i),j(i);const r=uc(i),s=uc(i),n=Z.decode(rc(i,s)),o=uc(i),c=Z.decode(rc(i,o));i.skip(16);const l=uc(i),u=rc(i,l);(e=this.metadataTags).images??(e.images=[]),this.metadataTags.images.push({data:u,mimeType:n,kind:3===r?"coverFront":4===r?"coverBack":"unknown",description:c});break}}if(t+=a,s){this.lastLoadedPos=t;break}}if(!this.audioInfo)throw new Error("Missing STREAMINFO metadata block! Corrupted FLAC file.")})())}async readNextFlacFrame({startPos:e,isFirstPacket:t}){j(this.audioInfo);const i=this.audioInfo.maximumBlockSize*this.audioInfo.numberOfChannels*4+16+2,r=this.audioInfo.minimumFrameSize||10,a=(this.audioInfo.maximumFrameSize||i)+16,s=await this.reader.requestSliceRange(e,16,a);if(!s)return null;const n=this.readFlacFrameHeader({slice:s,isFirstPacket:t});if(!n)return null;for(s.filePos=e+r;;){if(s.filePos>s.end-6)return{num:n.num,blockSize:n.blockSize,sampleRate:n.sampleRate,size:s.end-e,isLastFrame:!0};if(255===ac(s)){const t=s.filePos;if(ac(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-n.num!==1){s.filePos=t;continue}}else if(r.num-n.num!==n.blockSize){s.filePos=t;continue}return{num:n.num,blockSize:n.blockSize,sampleRate:n.sampleRate,size:i,isLastFrame:!1}}}}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=rc(e,4),a=new dt(r);if(32764!==a.readBits(15))return null;if(null===this.blockingBit){j(t);const e=a.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){j(!t);if(1!==a.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");j(!t);if(0!==a.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*2**e:6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?2**e:null)(a.readBits(4));if(!s)return null;j(this.audioInfo);const n=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(a.readBits(4),this.audioInfo.sampleRate);if(!n)return null;a.readBits(4),a.readBits(3);if(0!==a.readBits(1))return null;const o=(e=>{let t=0;const i=new dt(rc(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],a=t-1,s=new dt(rc(e,a)),n=8-t-1;for(let o=0;o<n;o++)r.unshift(i.readBits(1));for(let o=0;o<a;o++)for(let e=0;e<8;e++){const t=s.readBits(1);e<2||r.unshift(t)}return r.reduce((e,t,i)=>e|t<<i,0)})(e),c=((e,t)=>"uncommon-u16"===t?nc(e)+1:"uncommon-u8"===t?ac(e)+1:"number"===typeof t?t:(Te(t),void j(!1)))(e,s),l=((e,t)=>"uncommon-u16"===t?nc(e):"uncommon-u16-10"===t?10*nc(e):"uncommon-u8"===t?ac(e):"number"===typeof t?t:null)(e,n);if(null===l)return null;if(l!==this.audioInfo.sampleRate)return null;const u=e.filePos-i,h=ac(e);e.skip(-u),e.skip(-1);const d=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(rc(e,u));return h!==d?null:{num:o,blockSize:c,sampleRate:l}}async advanceReader(){await this.readMetadata(),j(null!==this.lastLoadedPos),j(this.audioInfo);const e=this.lastLoadedPos,t=await this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)}}class is{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return xe}getTimeResolution(){return j(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return j(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getDisposition(){return{...ht}}async getDecoderConfig(){return j(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}}async getPacket(e,t){if(j(this.demuxer.audioInfo),e<0)return null;const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=pe(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){await this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],a=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(a+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);await this.demuxer.advanceReader()}}finally{i()}}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}async getPacketAtIndex(e,t){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=rr;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(Xe(e)&&(e=await e),!e)return null;r=rc(e,i.byteSize)}j(this.demuxer.audioInfo);const a=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new ar(r,"key",a,s,e,i.byteSize)}async getFirstPacket(e){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)}}const rs=9e4,as=2**33,ss=188,ns="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",os=new Set([133,134,162]),cs=new Set;class ls extends ir{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=this.reader.requestSlice(0,205);Xe(e)&&(e=await e),j(e);const t=rc(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=ss;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,a=!1,s=!1;for(;;){const e=await this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=await this.readSection(i,!0,!s);if(!t)break;const n=3,o=32;let c=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new dt(t.payload),i=e.readAlignedByte();e.skipBits(8*i);c=2===e.readBits(8)}}if(0!==t.pid||a)if(t.pid!==r&&!c||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=hs(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(await this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new gs(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,await r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=Ft(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];j(t);const i=Nt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const a=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;a>0&&s>0&&(a>s?(e.info.squarePixelWidth=Math.round(e.info.width*a/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/a))),e.info.colorSpace={primaries:ie[i.colourPrimaries],transfer:ae[i.transferCharacteristics],matrix:ne[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=Wt(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===St.SPS_NUT).nalUnits[0];j(t);const i=qt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:ie[i.colourPrimaries],transfer:ae[i.transferCharacteristics],matrix:ne[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:zi({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(await r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=tc.tempFromBytes(r.suppliedPacket.data),i=Ya(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=mt[i.channelConfiguration],e.info.sampleRate=ft[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=uc(tc.tempFromBytes(r.suppliedPacket.data)),i=Yi(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=tr(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=hi(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=ui[t.acmod]+t.lfeon,e.info.sampleRate=yt[t.fscod]}else if("eac3"===e.info.codec){const t=mi(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=pi(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=gi(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=Ii(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:qi({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new dt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const a=e.readBits(10),c=e.pos+8*a;let l=!1;for(;e.pos<c;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(5===t&&i>=4){const t=e.readBits(32);l||(l=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=c;8*(r+n)-e.pos>o;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),a=e.pos+8*r;let s=!1,n=!1,o=!1;for(;e.pos<a;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(106===t)s=!0;else if(122===t||204===t)n=!0;else if(123===t)o=!0;else if(5===t&&i>=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let c=null;const u=l&&os.has(t)?130:t;switch(u){case 27:case 36:c={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",c={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:n?c={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?c={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(c={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:cs.has(t)||(ct._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),cs.add(t))}c&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:c,referencePesPackets:[]})}s=!0}else{const e=new dt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+n)-e.pos>o;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");a=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!a)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const n of this.elementaryStreams)n.initialized&&("video"===n.info.type?this.trackBackingEntries.push(new fs(n)):this.trackBackingEntries.push(new ms(n)))})())}async getTrackBackings(){return await this.readMetadata(),this.trackBackingEntries}async getMetadataTags(){return{}}async getMimeType(){await this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(await Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>e?.codec??null))))}async readSection(e,t,i=!1){let r=e,a=e;const s=[];let n,o=0,c=null,l=!0,u=0;for(;;){const e=await this.readPacket(a);if(a+=this.packetStride,!e)break;if(c){if(e.pid!==c.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;c=e}const n=!!(2&e.adaptationFieldControl),h=!!(1&e.adaptationFieldControl);let d=0;if(n&&(d=1+e.body[0],e===c&&d>1&&(u=e.body[1]>>6&1)),h&&(0===d?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(d)),o+=e.body.byteLength-d)),r=a,!t&&o>=64){l=!1;break}if(-1!==me(this.sectionEndPositions,r,e=>e)){l=!1;break}}if(l){const e=pe(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!c)return null;if(1===s.length)n=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);n=new Uint8Array(e);let t=0;for(const i of s)n.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:c.pid,payload:n,randomAccessIndicator:u}}async readPacketHeader(e){let t=this.reader.requestSlice(e,4);if(Xe(t)&&(t=await t),!t)return null;if(71!==ac(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=nc(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:ac(t)>>4&3}}async readPacket(e){let t=this.reader.requestSlice(e,ss);if(Xe(t)&&(t=await t),!t)return null;const i=rc(t,ss);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=as-t?-8589934592:as}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e<t?e+i:e}}const us=(e,t,i)=>{if(t.payload.byteLength<3)return null;const r=new dt(t.payload);if(1!==r.readBits(24))return null;const a=r.readBits(8);if(r.skipBits(16),188===a||190===a||191===a||240===a||241===a||255===a||242===a||248===a)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let n=null;if(2===s||3===s)n=0,r.skipBits(4),n+=r.readBits(3)*(1<<30),r.skipBits(1),n+=32768*r.readBits(15),r.skipBits(1),n+=r.readBits(15),n=e.normalizeTimestamp(n);else if(i)throw new Error(ns);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:n,randomAccessIndicator:t.randomAccessIndicator}},hs=(e,t,i)=>{j(null!==t.endPos);const r=us(e,t,i);if(!r)return null;const a=new dt(t.payload);a.skipBits(32);const s=a.readBits(16);a.skipBits(16);const n=a.readBits(8),o=a.pos+8*n;a.pos=o;const c=o/8;j(Number.isInteger(c));const l=t.payload.subarray(c,s>0?6+s:t.payload.byteLength);return{...r,data:l}};class ds{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,j(r instanceof ds),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return xe}getDisposition(){return{...ht,primary:!1}}getTimeResolution(){return rs}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new ar(i.metadataOnly?rr:e.data,r,e.pts/rs,Math.max(t/rs,0),e.sequenceNumber,e.data.byteLength)}async getFirstPacket(e){const t=this.elementaryStream.firstSection;j(t);const i=hs(this.elementaryStream.demuxer,t,!0);j(i);const r=new gs(this.elementaryStream,i),a=new ks(this,r),s=await a.readNext();if(!s)return null;const n=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(n,a),this.packetSectionStarts.set(n,s.packet.sectionStartPos),n}async getNextPacket(e,t){let i=this.packetBuffers.get(e);if(i){const r=await i.readNext();if(!r)return null;this.packetBuffers.delete(e);const a=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(a,i),this.packetSectionStarts.set(a,r.packet.sectionStartPos),a}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const a=this.elementaryStream.demuxer,s=await a.readSection(r,!0);j(s);const n=hs(a,s,!0);j(n);const o=new gs(this.elementaryStream,n);i=new ks(this,o);const c=e.sequenceNumber;for(;;){const e=await i.readNext();if(!e)return null;if(e.packet.sequenceNumber>c){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}}async getNextKeyPacket(e,t){let i=e;for(;;){if(i=await this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}async doPacketLookup(e,t,i){const r=Ce(e*rs),a=this.elementaryStream.demuxer,{reader:s,seekChunkSize:n}=a,o=this.elementaryStream.pid,c=async(e,t,i)=>{let r=e;for(;r<t;){const e=await a.readPacketHeader(r);if(!e)return null;if(e.pid===o&&1===e.payloadUnitStartIndicator){const e=await a.readSection(r,i);if(!e)return null;const t=us(a,e,!1);if(t&&null!==t.pts)return{pesPacketHeader:t,section:e}}r+=a.packetStride}return null},l=this.elementaryStream.firstSection;j(l);const u=us(a,l,!0);if(j(u),r<u.pts)return null;let h;const d=this.elementaryStream.referencePesPackets,f=pe(d,r,e=>e.pts),m=-1!==f?d[f]:null;if(m&&r-m.pts<45e3)h=m.sectionStartPos;else{let e=0;if(null!==s.fileSize){const t=Math.ceil(s.fileSize/n);if(t>1){let i=0,s=t-1;for(e=i;i<=s;){const t=Math.floor((i+s)/2),o=_e(t*n,a.packetStride)+u.sectionStartPos,l=o+n,h=await c(o,l,!1);h?h.pesPacketHeader.pts<=r?(e=t,i=t+1):s=t-1:s=t-1}}}h=_e(e*n,a.packetStride)+u.sectionStartPos}const p=await c(h,s.fileSize??1/0,!1);let g=p?.pesPacketHeader??null;g||(g=u);const k=this.getReorderSize(),y=async(e,t)=>{const s=await a.readSection(e,!0);j(s);const n=hs(a,s,!0);j(n);const o=new gs(this.elementaryStream,n),c=new ks(this,o);for(;;){if((X(c.presentationOrderPackets)?.pts??-1/0)>=r)break;if(!(await c.readNextPacket()))break}const l=we(c.presentationOrderPackets,t);if(-1===l)return null;const u=c.presentationOrderPackets[l],h=0===l?0:u.pts-c.presentationOrderPackets[l-1].pts;for(;c.decodeOrderPackets[0]!==u;)c.decodeOrderPackets.shift();c.lastDuration=h;const d=await c.readNext();j(d);const f=this.createEncodedPacket(d.packet,d.duration,i);return this.packetBuffers.set(f,c),this.packetSectionStarts.set(f,d.packet.sectionStartPos),f};if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=g.sectionStartPos+a.packetStride;for(;;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===o&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,!1);if(t){const e=us(a,t,!1);if(e&&null!==e.pts){if(e.pts>r)break e;g=e,ps(this.elementaryStream,g);break}}}e+=a.packetStride}}e:for(let e=0;e<k+1;e++){let e=g.sectionStartPos-a.packetStride;for(;e>=a.packetOffset;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===o&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,!1);if(t){const e=us(a,t,!1);if(e&&null!==e.pts){g=e;break}}}e-=a.packetStride}}return y(g.sectionStartPos,e=>e.pts<=r)}{let e=h,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let h=null;const d=e<=u.sectionStartPos;let f,m=null;if(d)f=u,m=l;else{const t=await c(e,s.fileSize??1/0,i);f=t?.pesPacketHeader??null,m=t?.section??null}let p=!1,g=0;e:for(;f&&!(null!==t&&f.sectionStartPos>=t);){if(f.pts<=r){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===f.randomAccessIndicator;else{j(m);const t=hs(a,m,!0);j(t);const i=new gs(this.elementaryStream,t);await i.markNextPacket(),e=1===i.suppliedPacket?.randomAccessIndicator}e&&(h=f)}if(f.pts>r&&(p=!0),p&&(g++,g>k))break;let e=f.sectionStartPos+a.packetStride;for(;;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===o&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,i);if(t){const e=us(a,t,!1);if(e&&null!==e.pts){f=e,m=t,ps(this.elementaryStream,f);break}}}e+=a.packetStride}}if(h){let e=h;if(0===g)e:for(let r=0;r<k;r++){let t=e.sectionStartPos-a.packetStride;for(;t>=a.packetOffset;){const r=await a.readPacketHeader(t);if(!r)break e;if(r.pid===o&&1===r.payloadUnitStartIndicator){const r=await a.readSection(t,i);if(r){const t=us(a,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=a.packetStride}}const t=await y(e.sectionStartPos,e=>e.pts<=r&&1===e.randomAccessIndicator);return j(t),t}if(d)return null;t=e,e=Math.max(_e(e-u.sectionStartPos-n,a.packetStride)+u.sectionStartPos,u.sectionStartPos)}}}}class fs extends ds{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}async getColorSpace(){return this.elementaryStream.info.colorSpace}async canBeTransparent(){return!1}async getDecoderConfig(){return j(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class ms extends ds{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}async getDecoderConfig(){return j(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const ps=(e,t)=>{const i=e.referencePesPackets,r=pe(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const a=i[r];if(t.pts<=a.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-a.sectionStartPos<s)return!1;if(r<i.length-1){const e=i[r+1];if(e.pts<t.pts)return!1;if(e.sectionStartPos-t.sectionStartPos<s)return!1}}return i.splice(r+1,0,t),!0};class gs{constructor(e,t){this.currentPos=0,this.pesPackets=[],this.currentPesPacketIndex=0,this.currentPesPacketPos=0,this.endPos=0,this.lastSuppliedPesPacket=null,this.nextPts=null,this.suppliedPacket=null,this.elementaryStream=e,this.pid=e.pid,this.demuxer=e.demuxer,this.startingPesPacket=t}ensureBuffered(e){const t=this.endPos-this.currentPos;return t>=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return j(e),e}async bufferData(e){const t=this.endPos+e;for(;this.endPos<t;){let e;if(0===this.pesPackets.length)e=this.startingPesPacket;else{let t=X(this.pesPackets).sectionEndPos;for(j(null!==t);;){const i=await this.demuxer.readPacketHeader(t);if(!i)return;if(i.pid===this.pid){const i=await this.demuxer.readSection(t,!0);if(!i)return;const r=hs(this.demuxer,i,!1);if(r){e=r;break}}t+=this.demuxer.packetStride}}this.pesPackets.push(e),this.endPos+=e.data.byteLength}}readBytes(e){const t=this.getCurrentPesPacket(),i=this.currentPos-this.currentPesPacketPos,r=i+e;if(this.currentPos+=e,r<=t.data.byteLength)return t.data.subarray(i,r);const a=new Uint8Array(e);a.set(t.data.subarray(i));let s=t.data.byteLength-i;for(;;){this.advanceCurrentPacket();const t=this.getCurrentPesPacket(),i=e-s;if(i<=t.data.byteLength){a.set(t.data.subarray(0,i),s);break}a.set(t.data,s),s+=t.data.byteLength}return a}readU8(){let e=this.getCurrentPesPacket();const t=this.currentPos-this.currentPesPacketPos;return this.currentPos++,t<e.data.byteLength?e.data[t]:(this.advanceCurrentPacket(),e=this.getCurrentPesPacket(),e.data[0])}seekTo(e){if(e!==this.currentPos){if(e<this.currentPos)for(;e<this.currentPesPacketPos;){this.currentPesPacketIndex--;const e=this.getCurrentPesPacket();this.currentPesPacketPos-=e.data.byteLength}else for(;;){const t=this.getCurrentPesPacket();if(e<this.currentPesPacketPos+t.data.byteLength)break;this.currentPesPacketPos+=t.data.byteLength,this.currentPesPacketIndex++}this.currentPos=e}}skip(e){this.seekTo(this.currentPos+e)}advanceCurrentPacket(){this.currentPesPacketPos+=this.getCurrentPesPacket().data.byteLength,this.currentPesPacketIndex++}async markNextPacket(){j(!this.suppliedPacket);const e=this.elementaryStream;if("video"===e.info.type){const t=e.info.codec,i=1024;if("avc"!==t&&"hevc"!==t)throw new Error("Unhandled.");const r="avc"===t?1:2;let a=null,s=!1,n=0;for(;;){let e=this.ensureBuffered(i);if(Xe(e)&&(e=await e),0===e)break;const o=this.currentPos,c=this.readBytes(e),l=c.byteLength;let u=0;for(;u<l;){const e=c.indexOf(0,u);if(-1===e||e>=l)break;u=e;const i=o+u;if(u+3>=l){this.seekTo(i);break}const h=c[u+1],d=c[u+2],f=c[u+3];let m=0;if(0===h&&0===d&&1===f?m=4:0===h&&1===d&&(m=3),0===m){u++;continue}const p=i;a??(a=p);const g=u+m,k=g+r,y=6;if(k+("avc"===t?y:1)>l){this.seekTo(i);break}const b=c[g];let w,T,S;if("avc"===t)w=Ct(b),T=w===wt.NON_IDR_SLICE||w===wt.SLICE_DPA||w===wt.IDR,S=w===wt.SEI||w===wt.SPS||w===wt.PPS||w===wt.AUD;else{w=Ut(b);if(((1&b)<<5|c[g+1]>>3)>0){u+=m;continue}T=w<=St.RASL_R||w>=St.BLA_W_LP&&w<=21,S=w>=St.VPS_NUT&&w<=37||w===St.PREFIX_SEI_NUT||w>=41&&w<=44||w>=48&&w<=55}let v=!1;if(T){let e;if("avc"===t){const t=c.subarray(k,k+y),i=$(new dt(t));e=!s||i<=n,n=i}else e=c[k]>>7===1;e&&(s?v=!0:s=!0)}else S&&s&&(v=!0);if(v){const e=p-a;return this.seekTo(a),this.supplyPacket(e,0)}u+=m}if(e<i)break}if(null!==a&&this.endPos>a){const e=this.endPos-a;return this.seekTo(a),this.supplyPacket(e,0)}}else{const t=e.info.codec,i=128;for(;;){let r=this.ensureBuffered(i);Xe(r)&&(r=await r);const a=this.currentPos;for(;this.currentPos-a<r;){const i=this.readU8();if("aac"===t){if(255!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(9);if(Xe(r)&&(r=await r),r<9)return;const a=this.readBytes(9),s=Ya(tc.tempFromBytes(a));if(s){this.seekTo(t);let i=this.ensureBuffered(s.frameLength);return Xe(i)&&(i=await i),this.supplyPacket(i,Math.round(9216e4/e.info.sampleRate))}this.seekTo(t+1)}else{if("mp3"!==t){if("ac3"===t){if(11!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(5);if(Xe(r)&&(r=await r),r<5)return;const a=this.readBytes(5);if(11!==a[0]||119!==a[1]){this.seekTo(t+1);continue}const s=a[4]>>6,n=63&a[4];if(3===s||n>37){this.seekTo(t+1);continue}const o=di[3*n+s];j(void 0!==o),this.seekTo(t),r=this.ensureBuffered(o),Xe(r)&&(r=await r);const c=Math.round(13824e4/e.info.sampleRate);return this.supplyPacket(r,c)}if("eac3"===t){if(11!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(5);if(Xe(r)&&(r=await r),r<5)return;const a=this.readBytes(5);if(11!==a[0]||119!==a[1]){this.seekTo(t+1);continue}const s=2*(((7&a[2])<<8|a[3])+1),n=3===a[4]>>6?3:a[4]>>4&3,o=fi[n];this.seekTo(t),r=this.ensureBuffered(s),Xe(r)&&(r=await r);const c=256*o,l=Math.round(c*rs/e.info.sampleRate);return this.supplyPacket(r,l)}if("dts"===t){if(127!==i&&100!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(18);if(Xe(r)&&(r=await r),r<18)return;const a=this.readBytes(18),s=Ci(a);let n=s?null:Bi(a);if(!s&&!n){this.seekTo(t+1);continue}if(n&&!n.asset){this.seekTo(t);const e=Math.min(n.frameSize,4096);let i=this.ensureBuffered(e);Xe(i)&&(i=await i),n=Bi(this.readBytes(i))??n}let o=s?s.frameSize:n.frameSize;if(s){let e=4*Math.ceil(s.frameSize/4);for(;;){this.seekTo(t);const i=e+10;let r=this.ensureBuffered(i);if(Xe(r)&&(r=await r),r<i)break;this.seekTo(t+e);const a=Bi(this.readBytes(10));if(!a)break;e+=a.frameSize,o=e}}const c=s?.sampleCount??n.asset?.sampleCount;if(void 0===c){this.seekTo(t+1);continue}this.seekTo(t),r=this.ensureBuffered(o),Xe(r)&&(r=await r);const l=Math.round(c*rs/e.info.sampleRate);return this.supplyPacket(r,l)}throw new Error("Unhandled.")}{if(255!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(4);if(Xe(r)&&(r=await r),r<4)return;const a=this.readBytes(4),s=J(a).getUint32(0),n=Yi(s,null);if(n.header){this.seekTo(t);let i=this.ensureBuffered(n.header.totalSize);Xe(i)&&(i=await i);const r=n.header.audioSamplesInFrame*rs/e.info.sampleRate;return this.supplyPacket(i,Math.round(r))}this.seekTo(t+1)}}}if(r<i)break}}}supplyPacket(e,t){const i=this.getCurrentPesPacket();let r;if(this.lastSuppliedPesPacket===i)j(null!==this.nextPts),r=this.nextPts;else{if(null===i.pts)throw new Error(ns);r=i.pts,ps(this.elementaryStream,i)}this.lastSuppliedPesPacket=i,this.nextPts=r+t;const a=i.sectionStartPos,s=a+(this.currentPos-this.currentPesPacketPos),n=this.readBytes(e);let o=i.randomAccessIndicator;if(0===o&&!this.elementaryStream.canBeTrustedWithKeyPackets)if("audio"===this.elementaryStream.info.type)o=1;else if(this.elementaryStream.info.decoderConfig){const e="key"===ni(this.elementaryStream.info.codec,this.elementaryStream.info.decoderConfig,n);o=Number(e)}this.suppliedPacket={pts:r,data:n,sequenceNumber:s,sectionStartPos:a,randomAccessIndicator:o},this.pesPackets.splice(0,this.currentPesPacketIndex),this.currentPesPacketIndex=0}}class ks{constructor(e,t){this.decodeOrderPackets=[],this.reorderBuffer=[],this.presentationOrderPackets=[],this.reachedEnd=!1,this.lastDuration=0,this.backing=e,this.context=t,this.reorderSize=e.getReorderSize(),j(this.reorderSize>=0)}async readNext(){if(0===this.decodeOrderPackets.length){if(!(await this.readNextPacket()))return null}await this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(j(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}}async readNextPacket(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||await this.context.markNextPacket(),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)}async ensureCurrentPacketHasNext(){const e=this.decodeOrderPackets[0];for(j(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(await this.readNextPacket()))break}}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;i<this.reorderBuffer.length;i++)this.reorderBuffer[i].pts<this.reorderBuffer[e].pts&&(e=i);const t=this.reorderBuffer[e];this.presentationOrderPackets.push(t),this.reorderBuffer.splice(e,1)}}flushReorderBuffer(){this.reorderBuffer.sort((e,t)=>e.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const ys="application/vnd.apple.mpegurl",bs="#EXT-X-STREAM-INF:",ws="#EXT-X-I-FRAME-STREAM-INF:",Ts="#EXT-X-MEDIA:",Ss="#EXTINF:",vs="#EXT-X-MAP:",Ps="#EXT-X-KEY:",Is="#EXT-X-MEDIA-SEQUENCE:",xs="#EXT-X-BYTERANGE:",Cs="#EXT-X-PROGRAM-DATE-TIME:",Bs="#EXT-X-TARGETDURATION:",Es="#EXT-X-PLAYLIST-TYPE:",_s=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class Rs{constructor(e){this._attributes={};let t="",i="",r=!1,a=!1;for(let s=0;s<e.length;s++){const n=e[s];'"'===n?a=!a:"="!==n||r||a?","!==n||a?r?i+=n:t+=n:(t&&(this._attributes[t.trim().toLowerCase()]=i),t="",i="",r=!1):r=!0}t&&(this._attributes[t.trim().toLowerCase()]=i)}get(e){return this._attributes[e.toLowerCase()]??null}getAsNumber(e){const t=this.get(e);if(null===t)return null;const i=Number(t);return Number.isFinite(i)?i:null}merge(e){Object.assign(this._attributes,e._attributes)}}class Fs{constructor(e,t,i){this.nextInputCacheAge=0,this.inputCache=[],this.trackBackingsPromise=null,this.firstSegment=null,this.firstSegmentFirstTimestamps=new WeakMap,this.firstTimestampCache=new WeakMap,this.input=e,this.path=t,this.trackDeclarations=i}async getDurationFromMetadata(e){const t=await this.getSegmentAt(1/0,{skipLiveWait:e.skipLiveWait});return t?t.timestamp+t.duration:null}async getUnixTimeForTimestamp(e){let t=await this.getSegmentAt(e,{});if(t??(t=await this.getFirstSegment({})),!t||null===t.unixEpochTimestamp)return null;const i=e-t.timestamp;return t.unixEpochTimestamp+i}async getTrackBackings(){return this.trackBackingsPromise??(this.trackBackingsPromise=(async()=>{const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=et(e,e=>"video"===e.getType())+1;e.push(new Ms(this,t,i))}else if("audio"===t.type){const i=et(e,e=>"audio"===e.getType())+1;e.push(new Ds(this,t,i))}}else{if(this.firstSegment=await this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=await t.getTracks();for(const r of i)if("video"===r.type){const t=et(e,e=>"video"===e.getType())+1;e.push(new Ms(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=et(e,e=>"audio"===e.getType())+1;e.push(new Ds(this,{id:e.length+1,type:"audio"},t))}}return e})())}async getFirstTimestampForInput(e){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=await e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i}async getMediaOffset(e,t){const i=e.firstSegment??e;let r;if(this.firstSegmentFirstTimestamps.has(i))r=this.firstSegmentFirstTimestamps.get(i);else{const e=this.getInputForSegment(i);r=await this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(i,r)}if(i===e)return i.timestamp-r;const a=await this.getFirstTimestampForInput(t),s=e.timestamp-i.timestamp,n=a-r-s;return Math.abs(n)<=Math.min(.25,s)?i.timestamp-r:e.timestamp-a}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class As{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{var e;if((e=this.segmentedInput).firstSegment??(e.firstSegment=await this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let t=this.segmentedInput.firstSegment,i=null;for(;t;){const e=this.segmentedInput.getInputForSegment(t);if(i=(await e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number)??null,i)break;t=await this.segmentedInput.getNextSegment(t,{})}if(!i)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=i,this.firstSegment=t})())}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}getHasOnlyKeyPackets(){return this.delegate(()=>this.firstInputTrack._backing.getHasOnlyKeyPackets?.()??null)}getPairingMask(){return 1n}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}async isRelativeToUnixEpoch(){return await this.hydrate(),j(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}async createAdjustedPacket(e,t,i){j(e.sequenceNumber>=0),j(this.segmentedInput.firstSegment);const r=await this.segmentedInput.getMediaOffset(t,i.input),a=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:Ee(e.timestamp+r,await i.getTimeResolution()),sequenceNumber:Math.floor(1e8*a)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s}async getFirstPacket(e){await this.hydrate(),j(this.firstInputTrack),j(this.firstSegment);let t=this.firstInputTrack,i=this.firstSegment;for(;;){if(t){const r=await t._backing.getFirstPacket(e);if(r)return this.createAdjustedPacket(r,i,t)}if(i=await this.segmentedInput.getNextSegment(i,{skipLiveWait:e.skipLiveWait}),!i)break;const r=this.segmentedInput.getInputForSegment(i);t=(await r.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number)??null}return null}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}async _getNextInternal(e,t,i){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const a=i?await r.track._backing.getNextKeyPacket(r.sourcePacket,t):await r.track._backing.getNextPacket(r.sourcePacket,t);if(a)return this.createAdjustedPacket(a,r.segment,r.track);let s=r.segment;for(;;){const e=await this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),a=(await i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!a){s=e;continue}const n=await a._backing.getFirstPacket(t);return n?this.createAdjustedPacket(n,e,a):null}}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}async _getPacketInternal(e,t,i){let r=await this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(await this.hydrate();r;){const a=this.segmentedInput.getInputForSegment(r),s=(await a.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const n=e-await this.segmentedInput.getMediaOffset(r,a),o=i?await s._backing.getKeyPacket(n,t):await s._backing.getPacket(n,t);if(o)return this.createAdjustedPacket(o,r,s);r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null}}class Ms extends As{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}async getColorSpace(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())}async canBeTransparent(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}class Ds extends As{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}Ye();const Ns=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class Os extends st{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}async getSizeOrNull(){if(this._disposed)throw new Zo;return this._sizePromise??(this._sizePromise=(async()=>{let e=this._getFileSize();return void 0!==e||(await this._read(0,1,0,Ns),e=this._getFileSize(),j(void 0!==e)),e})())}async getSize(){if(this._disposed)throw new Zo;const e=await this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new Js(this,e,t)}_dispatchRead(e,t){this.onread?.(e,t),this._emit("read",{start:e,end:t})}ref(){return new Ls(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class Ls{constructor(e){if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),e._refFinalizationRegistry?.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const e=this.source;j(e._refCount>0),e._decrementRefCount(),e._refFinalizationRegistry?.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class zs extends Os{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof Os||e instanceof Ls))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof Os?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return Xe(t)?t.then(i):i(t)}}const Us=(e,t)=>e.path===t.path;class qs extends zs{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof Os?e.ref():e;return this._root=t,this._rootRequest=null,t};Xe(e)?this._rootRequest=e.then(t):(t(e),j(this._root))}if(this._rootRequest)return this._rootRequest.then(a=>a.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const Ws="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class Hs extends Os{constructor(e,t={}){if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!Je(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new Ys({maxCacheSize:t.maxCacheSize??8388608,maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),Ws?.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:Qs.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}async _runWorker(e){j(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!Ue()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),Ws?.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos<e.targetPos&&!e.aborted;)if(t){const{done:i,value:r}=await t.read();if(i)throw this._orchestrator.onWorkerFinished(e),new Error("Blob reader stopped unexpectedly before all requested data was read.");if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+r.length),this._orchestrator.supplyWorkerData(e,r)}else{const t=await this._blob.slice(e.currentPos,e.targetPos).arrayBuffer();if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+t.byteLength),this._orchestrator.supplyWorkerData(e,new Uint8Array(t))}this._orchestrator.signalWorkerStoppedRunning(e),e.aborted&&await(t?.cancel())}_dispose(){this._orchestrator.dispose()}}const Vs=(e,t,i)=>{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch{}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return ct._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(2**(e-2),16)},js=new Set;class Ks extends zs{constructor(e,t={}){if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!Je(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new Ks(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=t.getRetryDelay??Vs,this._requestInit={...t.requestInit};let i=null;if(t.requestInit?.headers){const e={...Ne(t.requestInit.headers)},r=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==r&&(i=e[r],delete e[r],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){i??(i=t);const r=new Request(e);r.headers.delete("Range"),this._url=r}}if(null!==i){const e=$s(i);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new Ys({maxCacheSize:t.maxCacheSize??67108864,maxWorkerCount:t.parallelism??2,runWorker:this._runWorker.bind(this),prefetchProfile:Qs.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const e=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===e?null!==this._length?this._length:null:Ie(e-this._offset,0,this._length??1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const a=this._offset,s=this._sequentialBacking?this._sequentialBacking._read(a+e,a+t):this._orchestrator.read(a+e,a+t,Math.max(a+i,a),a+Math.min(r,this._length??1/0)),n=e=>e?(e.offset-=this._offset,e):null;return Xe(s)?s.then(n):n(s)}async _runWorker(e){for(;;){const i=new AbortController,r=await Oe(this._options.fetchFn??fetch,this._url,De(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:i.signal}),this._getRetryDelay,()=>this._disposed);if(!r.ok)throw new Error(`Error fetching ${String(this._url)}: ${r.status} ${r.statusText}`);r.redirected&&(this.rootPath=r.url);e:if(null===this._orchestrator.fileSize&&(206===r.status||"basic"===r.type&&!r.headers.has("Content-Encoding"))){const t=r.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=r.headers.get("Content-Length");if(i){const t=206===r.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!r.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==r.status){if(this._sequentialBacking)return void r.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||js.has(e.origin)||(ct._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),js.add(e.origin))}return void this._transitionToSequentialMode(r.body)}const a=r.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return i.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let r;try{r=await a.read()}catch(t){if(this._disposed)throw t;const e=this._getRetryDelay(1,t,this._url);if(null!==e){ct._error("Error while reading response stream. Attempting to resume.",t),await at(1e3*e);break}throw t}if(e.aborted)continue;const{done:s,value:n}=r;if(s){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+n.length),this._orchestrator.supplyWorkerData(e,n)}}}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const a=new ReadableStream({pull:async e=>{for(;;){let s;try{s=await t.read()}catch(a){if(this._disposed)throw a;const e=this._getRetryDelay(1,a,this._url);if(null===e)throw a;ct._error("Error while reading response stream. Attempting to resume.",a),await at(1e3*e);const s=await Oe(this._options.fetchFn??fetch,this._url,De(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!s.ok)throw new Error(`Error fetching ${String(this._url)}: ${s.status} ${s.statusText}`);if(!s.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=s.body.getReader(),r=206===s.status?0:i;continue}if(s.done)return void e.close();let n=s.value;if(r>0){const e=Math.min(r,n.length);r-=e,n=n.subarray(e)}if(0!==n.length)return i+=n.length,void e.enqueue(n)}},cancel:()=>t.cancel()}),s=new Gs(a,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const n=new Set;for(const o of this._orchestrator.workers){for(const e of o.pendingSlices)n.add(e);o.aborted=!0,o.pendingSlices.length=0}for(const o of this._orchestrator.queuedReads)for(const e of o.pendingSlices)n.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const o of n){const e=s._read(o.start,o.start+o.bytes.length);Xe(e)?e.then(e=>{e?(j(e.offset===o.start),o.resolve(e.bytes)):o.resolve(null)},e=>o.reject(e)):(j(null===e),o.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const Xs=/^bytes=(\d+)-(\d*)$/,$s=e=>{const t=Xs.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&r<i?null:{offset:i,length:null!==r?r-i+1:null}};class Gs extends Os{constructor(e,t={}){if(!(e instanceof ReadableStream))throw new TypeError("stream must be a ReadableStream.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!Je(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");super(),this._reader=null,this._cache=[],this._pendingSlices=[],this._currentIndex=0,this._targetIndex=0,this._maxRequestedIndex=0,this._endIndex=null,this._pulling=!1,this._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. With ReadableStreamSource, you must access the data more sequentially or increase the size of its cache.",this._stream=e,this._maxCacheSize=t.maxCacheSize??33554432,this._handleUnhandledError=t.handleUnhandledError}_getFileSize(){return this._endIndex}_read(e,t){if(null!==this._endIndex&&t>this._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=pe(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let a=e;const s=new Uint8Array(t-e);if(-1!==i)for(let l=i;l<this._cache.length;l++){const i=this._cache[l];if(i.start>=t)break;const r=Math.max(e,i.start);r>a&&this._throwDueToCacheMiss();const n=Math.min(t,i.end);r<n&&(s.set(i.bytes.subarray(r-i.start,n-i.start),r-e),a=n)}if(a===t)return{bytes:s,view:J(s),offset:e};this._currentIndex>a&&this._throwDueToCacheMiss();const{promise:n,resolve:o,reject:c}=ke();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:c}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),n}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}async _pull(){for(this._reader??(this._reader=this._stream.getReader());this._currentIndex<this._targetIndex&&!this._disposed;){const{done:e,value:t}=await this._reader.read();if(e){for(const e of this._pendingSlices)e.resolve(null);this._pendingSlices.length=0,this._endIndex=this._currentIndex;break}const i=this._currentIndex,r=this._currentIndex+t.byteLength;this._dispatchRead(i,r);for(let a=0;a<this._pendingSlices.length;a++){const e=this._pendingSlices[a],s=Math.max(i,e.start),n=Math.min(r,e.end);s<n&&(e.bytes.set(t.subarray(s-i,n-i),s-e.start),n===e.end&&(e.resolve({bytes:e.bytes,view:J(e.bytes),offset:e.start}),this._pendingSlices.splice(a,1),a--))}for(this._cache.push({start:i,end:r,bytes:t,view:J(t),age:0});this._cache.length>0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1}_dispose(){for(const e of this._pendingSlices)e.reject(new Zo);this._pendingSlices.length=0,this._cache.length=0,this._reader?.cancel()}}const Qs={fileSystem:(e,t)=>{const i=65536;return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=65536;e=Math.max(0,Math.floor((e-r)/r)*r);for(const a of i){const i=8388608,r=Math.max((a.startPos+a.targetPos)/2,a.targetPos-i);if(Ge(e,t,r,a.targetPos)){const e=a.targetPos-a.startPos,r=Math.ceil((e+1)/i)*i,s=2**Math.ceil(Math.log2(e+1)),n=Math.min(s,r);t=Math.max(t,a.startPos+n)}}return{start:e,end:t=Math.max(t,e+524288)}}};class Ys{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){j(!this.disposed);const a=this.options.prefetchProfile(e,t,this.workers),s=Math.max(a.start,i),n=Math.min(a.end,this.fileSize??1/0,r);j(s<=e&&t<=n);let o=null;const c=pe(this.cache,e,e=>e.start),l=-1!==c?this.cache[c]:null;l&&l.start<=e&&t<=l.end&&(l.age=this.nextAge++,o={bytes:l.bytes,view:l.view,offset:l.start});const u=pe(this.cache,s,e=>e.start),h=o?null:new Uint8Array(t-e);let d=0,f=s;const m=[];if(-1!==u){for(let i=u;i<this.cache.length;i++){const r=this.cache[i];if(r.start>=n)break;if(r.end<=s)continue;const a=Math.max(s,r.start),o=Math.min(n,r.end);if(j(a<=o),f<a&&m.push({start:f,end:a}),f=o,h){const i=Math.max(e,r.start),a=Math.min(t,r.end);if(i<a){const t=i-e;h.set(r.bytes.subarray(i-r.start,a-r.start),t),t===d&&(d=a-e)}}r.age=this.nextAge++}f<n&&m.push({start:f,end:n})}else m.push({start:s,end:n});if(h&&d>=h.length&&(o={bytes:h,view:J(h),offset:e}),0===m.length)return j(o),o;const{promise:p,resolve:g,reject:k}=ke(),y=[];for(const w of m){const i=Math.max(e,w.start),r=Math.min(t,w.end);i===w.start&&r===w.end?y.push(w):i<r&&y.push({start:i,end:r})}const b=h&&{start:e,bytes:h,holes:y,resolve:g,reject:k};e:for(const w of m){for(const i of this.workers){if(this.checkHoleAgainstWorker(i,w,b?[b]:[])){this.checkQueuedReadsAgainstWorker(i);continue e}}const e=w.end<n||null!==this.fileSize,t=this.createWorker(w.start,w.end,e);if(t)b&&(t.pendingSlices=[b]),this.runWorker(t);else{let t=pe(this.queuedReads,w.start,e=>e.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&w.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,w.end),i.strictTarget&&(i.strictTarget=e),b&&i.pendingSlices.push(b)):(t++,i={hole:{start:w.start,end:w.end},strictTarget:e,pendingSlices:b?[b]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1<this.queuedReads.length;){const e=this.queuedReads[t+1];if(e.hole.start>i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return o?p.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(j(h),o=p.then(t=>t&&{bytes:t,view:J(t),offset:e})),o}checkHoleAgainstWorker(e,t,i){if(Ge(t.start-2**17,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t<i.length;t++){const r=i[t];e.pendingSlices.includes(r)||e.pendingSlices.push(r)}return e.running||this.runWorker(e),!0}return!1}checkQueuedReadsAgainstWorker(e){let t=!1;for(let i=0;i<this.queuedReads.length;i++){const r=this.queuedReads[i];if(this.checkHoleAgainstWorker(e,r.hole,r.pendingSlices))this.queuedReads.splice(i,1),i--,t=!0;else if(t)break}}createWorker(e,t,i){if(this.workers.length>=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i<this.workers.length;i++){const r=this.workers[i];r.running||0!==r.pendingSlices.length||e&&!(r.age<e.age)||(t=i,e=r)}if(!e)return null;j(null!==t),j(0===e.pendingSlices.length),this.workers.splice(t,1),this.options.onIdleWorkerRemoved?.(e)}const r={startPos:e,currentPos:e,targetPos:t,strictTarget:i,running:!1,aborted:this.disposed,pendingSlices:[],age:this.nextAge++};return this.workers.push(r),r}runWorker(e){j(!e.running),j(e.currentPos<e.targetPos),e.running=!0,e.age=this.nextAge++,this.options.runWorker(e).catch(t=>{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;r<this.queuedReads.length;r++){this.queuedReads[r].age<this.queuedReads[e].age&&(e=r)}const t=this.queuedReads[e],i=this.createWorker(t.hole.start,t.hole.end,t.strictTarget);if(!i)return;this.queuedReads.splice(e,1),i.pendingSlices=t.pendingSlices,this.runWorker(i)}})}supplyWorkerData(e,t){j(!e.aborted);const i=e.currentPos,r=i+t.length;this.insertIntoCache({start:i,end:r,bytes:t,view:J(t),age:this.nextAge++}),e.currentPos+=t.length,e.currentPos>e.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;a<e.pendingSlices.length;a++){const s=e.pendingSlices[a],n=Math.max(i,s.start),o=Math.min(r,s.start+s.bytes.length);n<o&&s.bytes.set(t.subarray(n-i,o-i),n-s.start);for(let e=0;e<s.holes.length;e++){const t=s.holes[e];i<=t.start&&r>t.start&&(t.start=r),t.end<=t.start&&(s.holes.splice(e,1),e--)}0===s.holes.length&&(s.resolve(s.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;a<this.workers.length;a++){const t=this.workers[a];e===t||t.running||Ge(i,r,t.currentPos,t.targetPos)&&(this.workers.splice(a,1),this.options.onIdleWorkerRemoved?.(t),a--)}}supplyFileSize(e){j(null===this.fileSize),this.fileSize=e;for(const t of this.workers){t.targetPos=Math.min(t.targetPos,e),t.strictTarget=!0;for(let i=0;i<t.pendingSlices.length;i++){const r=t.pendingSlices[i];for(const a of r.holes)if(a.end>e){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t<this.queuedReads.length;t++){const i=this.queuedReads[t];if(i.hole.start>=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t<i.pendingSlices.length;t++){const r=i.pendingSlices[t];r.start>=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){const t=this.workers.indexOf(e);j(-1!==t),e.running=!1,this.workers.splice(t,1),this.options.onIdleWorkerRemoved?.(e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const i of e.pendingSlices)i.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=pe(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=J(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i<this.cache.length;i++){const t=this.cache[i];if(e.end<=t.start)break;if(e.end>=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=J(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;i<this.cache.length;i++){const r=this.cache[i];r.age<t.age&&(e=i,t=r)}if(this.currentCacheSize-t.bytes.length<=this.options.maxCacheSize)break;this.cache.splice(e,1),this.currentCacheSize-=t.bytes.length}}dispose(){for(const e of this.workers){for(const t of e.pendingSlices)t.reject(new Zo);e.pendingSlices.length=0,e.aborted=!0,e.running||this.options.onIdleWorkerRemoved?.(e)}for(const e of this.queuedReads)for(const t of e.pendingSlices)t.reject(new Zo);this.workers.length=0,this.cache.length=0,this.queuedReads.length=0,this.disposed=!0}}class Js extends Os{constructor(e,t,i){if(super(),this._ref=null,e._disposed)throw new Error("Cannot create a slice of a disposed source.");this._baseSource=e,this._offset=t,this._length=i??null}_getFileSize(){const e=this._baseSource._getFileSize();return void 0===e?null!==this._length?this._length:void 0:null===e?null!==this._length?this._length:null:Ie(e-this._offset,0,this._length??1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const a=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return Xe(a)?a.then(s):s(a)}_dispose(){this._ref?.free()}ref(){return this._ref??(this._ref=this._baseSource.ref()),super.ref()}}var Zs=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},en=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const tn=/^0[xX][0-9a-fA-F]+$/,rn=/^data:.*;base64,/i;class an extends Fs{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){return this.currentUpdateSegmentsPromise??(this.currentUpdateSegmentsPromise=(async()=>{try{const e=this.getRemainingWaitTimeMs();e>0&&await at(e),this.lastSegmentUpdateTime=performance.now(),await this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}})())}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}async updateSegments(){let e=this.nextLines;if(this.nextLines=null,!e){const t={stack:[],error:void 0,hasError:!1};try{const i=Zs(t,await this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),r=new ec(i.source),a=await r.requestEntireFile();j(a),e=wc(a,a.length,{ignore:_s}),i.source instanceof zs&&(this.rootPath=i.source.rootPath)}catch(y){t.error=y,t.hasError=!0}finally{en(t)}}const t=!1!==this.input._formatOptions.hls?.offsetTimestampsByDateTime;let i=!1,r=0,a=null,s=null,n=null,o=0,c=null,l=null,u=null,h=null,d=null,f=null,m=!1,p=X(this.segments)??null;const g=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},k=e=>{o=e,p&&(j(null!==p.sequenceNumber),p.sequenceNumber<e&&(r=p.timestamp+p.duration,c=p.firstSegment,l=p.initSegment,d=p.lastProgramDateTimeSeconds,a=null!==p.unixEpochTimestamp?p.unixEpochTimestamp+p.duration:null,p=null))};for(let b=0;b<e.length;b++){const y=e[b];if(i){if(!y.startsWith("#")){if(!p){if(null===s)throw new Error("Invalid M3U8 file; a segment must be preceded by an #EXTINF tag.");let e=n;if(e&&"AES-128"===e.method&&!e.iv){const t=new Uint8Array(fr),i=J(t);i.setUint32(8,Math.floor(o/2**32)),i.setUint32(12,o),e={...e,iv:t}}const t=Ze(this.rootPath,y),i={timestamp:r,unixEpochTimestamp:a,firstSegment:c,sequenceNumber:o,location:{path:t,offset:h?.offset??0,length:h?.length??null},duration:s,encryption:e,initSegment:l,lastProgramDateTimeSeconds:d};c??(c=i),r+=s,null!==a&&(a+=s),this.segments.push(i)}s=null,null===h?u=null:h=null,k(o+1)}if(y.startsWith(Ss)){if(p){m=!0;continue}m||(null===d&&o>0&&null!==f&&(r=o*f),m=!0);const e=y.slice(8),t=e.indexOf(","),i=-1===t?e:e.slice(0,t),a=Number(i);if(!Number.isFinite(a)||a<0)throw new Error(`Invalid #EXTINF tag duration '${i}'.`);s=a}else if(y.startsWith(vs)){const e=new Rs(y.slice(11)),t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const i=e.get("byterange");let o=null;if(null!==i&&(o=g(i)),o&&null===o.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!p){const e={path:Ze(this.rootPath,t),offset:o?.offset??0,length:o?.length??null};if("AES-128"===n?.method&&!n.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");l={timestamp:r,unixEpochTimestamp:a,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:n,initSegment:null,lastProgramDateTimeSeconds:d}}s=null,null===h?u=null:h=null}else if(y.startsWith(Ps)){const e=new Rs(y.slice(11)),t=e.get("method");if("NONE"===t)n=null;else if("AES-128"===t){const t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=e.get("iv");if(r){if(!tn.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(fr);for(let t=0;t<fr;t++){const r=-32+t;i[t]=parseInt(e.slice(r,r+2),16)}}const a=e.get("keyformat")??"identity";if("identity"!==a)throw new Error("For AES-128 encryption, only the 'identity' KEYFORMAT is currently supported. If you think other formats should be supported, please raise an issue.");n={method:"AES-128",keyUri:Ze(this.rootPath,t),iv:i,keyFormat:a}}else{if("SAMPLE-AES"!==t&&"SAMPLE-AES-CTR"!==t)throw new Error(`Unsupported encryption method '${t}'. If you think this method should be supported, please raise an issue.`);{const i=e.get("uri");if(!i)throw new Error(`Invalid #EXT-X-KEY: ${t} requires a URI attribute.`);if("identity"===(e.get("keyformat")??"identity"))throw new Error("For SAMPLE-AES and SAMPLE-AES-CTR encryption, the 'identity' KEYFORMAT is not supported. If you think this format should be supported, please raise an issue.");let r=null;if(rn.test(i)){const e=i.indexOf(","),t=Qe(i.slice(e+1));if(t.length>=8&&112===t[4]&&115===t[5]&&115===t[6]&&104===t[7]){const e=J(t).getUint32(0);r=sr(t.subarray(8,Math.min(e,t.length)))}}n={method:t,psshBox:r}}}}else if(y.startsWith(Is)){const e=y.slice(22),t=Number(e);if(!Number.isInteger(t)||t<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${e}'.`);k(t)}else if(y.startsWith(xs)){const e=g(y.slice(17));if(null===e.offset){if(null===u)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");e.offset=u}h=e,u=e.offset+e.length}else if(y.startsWith(Cs)){if(p)continue;const e=y.slice(25),i=Date.parse(e);if(!Number.isFinite(i))continue;const s=i/1e3;if(d===s)continue;if(null===d&&this.segments.length>0){const e=X(this.segments),i=s-(e.timestamp+e.duration);for(const r of this.segments)r.unixEpochTimestamp=r.timestamp+i,t&&(r.timestamp=r.unixEpochTimestamp)}d=s,a=s,t&&(r=s)}else if("#EXT-X-DISCONTINUITY"===y)c=null;else if(y.startsWith(Bs)){const e=y.slice(22),t=Number(e);if(!Number.isFinite(t)||t<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${e}'.`);this.refreshInterval=t,f=t}else{if("#EXT-X-ENDLIST"===y){this.streamHasEnded=!0;break}if(y.startsWith(Es)){"vod"===y.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==y)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");i=!0}}if(!i)throw new Error("Invalid M3U8 file; no #EXTM3U header.")}async getFirstSegment(){return 0===this.segments.length&&await this.runUpdateSegments(),this.segments[0]??null}async getSegmentAt(e,t){0===this.segments.length&&await this.runUpdateSegments();let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=pe(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r<this.segments.length-1||this.streamHasEnded||i)return this.segments[r];const a=this.segments[r];if(e<a.timestamp+a.duration)return a;await this.runUpdateSegments(),t.skipLiveWait&&(i=!0)}}async getNextSegment(e,t){const i=this.segments.indexOf(e);j(-1!==i);const r=i+1;let a=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){if(r<this.segments.length)return this.segments[r];if(this.streamHasEnded||a)return null;await this.runUpdateSegments(),t.skipLiveWait&&(a=!0)}}async getPreviousSegment(e){const t=this.segments.indexOf(e);return j(-1!==t),this.segments[t-1]??null}getInputForSegment(e){const t=e,i=this.inputCache.find(e=>e.segment===t);if(i)return i.age=this.nextInputCacheAge++,i.input;let r=null;(t.initSegment||t.firstSegment)&&(r=this.getInputForSegment(t.initSegment??t.firstSegment));const a={...this.input._formatOptions,isobmff:{...this.input._formatOptions.isobmff,resolveKeyId:this.input._formatOptions.isobmff?.resolveKeyId&&(e=>{if(!t.encryption||"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method||!t.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let i=e.psshBoxes;const{psshBox:r}=t.encryption;return null!==r.keyIds&&!r.keyIds.includes(e.keyId)||i.some(e=>nr(e,r))||(i=[...i,r]),this.input._formatOptions.isobmff.resolveKeyId({...e,psshBoxes:i})})}},s=new Yo({source:new qs(t.location.path,async e=>{j(e.isRoot);const i={...e,isRoot:!1};let r;const a=t.location.offset>0||null!==t.location.length;if(t.encryption&&"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method)if("AES-128"===t.encryption.method){const e=t.encryption;j(e.iv);let s=await this.input._getSourceCached(i);if(a){const e=s.source.slice(t.location.offset,t.location.length??void 0).ref();s.free(),s=e}const n=((e,t,i)=>{let r=!1,a=0;const s=new Sr;return new ReadableStream({pull:async n=>{r||(s.init(await t()),r=!0);let o=e.requestSliceRange(a,0,65552);if(Xe(o)&&(o=await o),!o||0===o.length)throw new Error("Invalid ciphertext.");const c=o.length;if(c%16!==0)throw new Error("Invalid ciphertext.");const l=65552===c?c-16:c,u=rc(o,l),h=new Uint8Array(l);for(let e=0;e<l;e+=16)s.in.set(u.subarray(e,e+16)),s.decrypt(),h.set(s.out,e);if(l<c)n.enqueue(h),a+=l;else{const e=h[l-1];if(0===e||e>16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=h.subarray(0,l-e);n.enqueue(t),n.close(),i()}},cancel:()=>{i()}})})(new ec(s.source),async()=>{const t={stack:[],error:void 0,hasError:!1};try{const i=Zs(t,await this.input._getSourceCached({path:e.keyUri,isRoot:!1},Qo),!1),r=new ec(i.source),a=await r.requestSlice(0,fr);if(!a)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:rc(a,fr),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{en(t)}},()=>{s.free()});r=new Gs(n).ref()}else j(!1);else if(r=await this.input._getSourceCached(i),a){const e=r.source.slice(t.location.offset,t.location.length??void 0).ref();r.free(),r=e}return r}),formats:this.input._formats.filter(e=>!(e instanceof Pn)),initInput:r??void 0,formatOptions:a});s._onFormatDetermined=e=>{if(("SAMPLE-AES"===t.encryption?.method||"SAMPLE-AES-CTR"===t.encryption?.method)&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:t,input:s,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=tt(this.inputCache,e=>e.age);j(-1!==e),this.inputCache.splice(e,1)}return s}async getLiveRefreshInterval(){return 0===this.getRemainingWaitTimeMs()&&await this.runUpdateSegments(),this.streamHasEnded?null:this.refreshInterval}}class sn extends ir{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{j(this.input._rootSource instanceof zs);const e=await this.input._reader.requestEntireFile();j(e);const t=wc(e,e.length,{ignore:_s}),{rootPath:i}=this.input._rootSource,r=[],a=[];for(let u=1;u<t.length;u++){const e=t[u];if(e.startsWith(bs)){const a=u,s=t[++u];if(void 0===s)throw new Error("Incorrect M3U8 file; a line must follow the #EXT-X-STREAM-INF tag.");const n=Ze(i,s),o=new Rs(e.slice(18));if(null===o.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");r.push({fullPath:n,attributes:o,lineNumber:a,hasOnlyKeyPackets:!1})}else if(e.startsWith(ws)){const t=new Rs(e.slice(26)),a=t.get("uri");if(null===a)throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a URI attribute.");if(null===t.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");const s=Ze(i,a);r.push({fullPath:s,attributes:t,lineNumber:u,hasOnlyKeyPackets:!0})}else if(e.startsWith(Ts)){const t=new Rs(e.slice(13));if(null===t.get("type"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a TYPE attribute.");if(null===t.get("group-id"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a GROUP-ID attribute.");let r=null;const s=t.get("uri");null!==s&&(r=Ze(i,s)),a.push({fullPath:r,attributes:t,lineNumber:u})}else if("#EXT-X-I-FRAMES-ONLY"===e);else if(e.startsWith(Ss)){const e=new an(this,i,null,t);return this.segmentedInputs=[e],this.hasMasterPlaylist=!1,void(this.trackBackings=await e.getTrackBackings())}}const s=[...new Set(a.filter(e=>"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],n=[...new Set(a.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=await Promise.all(r.map(async(e,t)=>{const r=[],o=e.attributes.get("codecs");let c;if(o)c=o.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=await t.getTrackBackings(),r=await Promise.all(i.map(async e=>({track:e,codec:await e.getCodec()})));c=await Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const l=e.attributes.get("video"),u=e.attributes.get("audio"),h=c.some(e=>_i.includes(ji(e))),d=c.some(e=>Fi.includes(ji(e)));if(null!==l&&!h){if(!s.includes(l))throw new Error(`Invalid M3U8 file; variant stream references video group "${l}" which is not defined in any #EXT-X-MEDIA tags.`);const e=a.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===l&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=Ze(i,t),a=this.getSegmentedInputForPath(r),s=(await a.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===await s.getCodec())break e;const n=await s.getDecoderConfig().then(e=>e?.codec??null);j(null!==n),c.push(n)}}if(null!==u&&!d){if(!n.includes(u))throw new Error(`Invalid M3U8 file; variant stream references audio group "${u}" which is not defined in any #EXT-X-MEDIA tags.`);const e=a.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===u&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=Ze(i,t),a=this.getSegmentedInputForPath(r),s=(await a.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===await s.getCodec())break e;const n=await s.getDecoderConfig().then(e=>e?.codec??null);j(null!==n),c.push(n)}}c=[...new Set(c)];let f=null,m=null;const p=e.attributes.getAsNumber("bandwidth");j(null!==p);const g=e.attributes.getAsNumber("average-bandwidth"),k=e.attributes.get("name");for(const i of c){const o=ji(i);if(null!==o)if(_i.includes(o)){if(null!==f)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");f=i;const n=e.attributes.get("video");if(null===n){const i=e.attributes.get("resolution");let a=null,s=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(a=Number(e[1]),s=Number(e[2]))}r.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:xe,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:f,pairingMask:1n<<BigInt(t),peakBitrate:p,averageBitrate:g,name:k,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:a,height:s}})}else{if(!s.includes(n))throw new Error(`Invalid M3U8 file; variant stream references video group "${n}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of a){const a=i.attributes.get("group-id"),s=i.attributes.get("type");if(a!==n||"video"!==s.toLowerCase())continue;const o=i.attributes.get("resolution")??e.attributes.get("resolution");let c=null,l=null;if(o){const e=o.match(/^(\d+)x(\d+)$/);e&&(c=Number(e[1]),l=Number(e[2]))}r.push({id:-1,demuxer:this,backingTrack:null,default:ln(i.attributes),autoselect:ln(i.attributes)||un(i.attributes),languageCode:hn(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:i.fullPath??e.fullPath,fullCodecString:f,pairingMask:1n<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:c,height:l}})}}}else if(Fi.includes(o)){if(null!==m)throw new Error("Unsupported M3U8 file; multiple audio codecs found in the CODECS attribute of a variant stream.");m=i;const s=e.attributes.get("audio");if(null===s){const i=e.attributes.get("channels"),a=null!==i?Number(i.split("/")[0]):null;r.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:xe,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:m,pairingMask:1n<<BigInt(t),peakBitrate:p,averageBitrate:g,name:k,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==a&&Number.isInteger(a)&&a>0?a:null}})}else{if(!n.includes(s))throw new Error(`Invalid M3U8 file; variant stream references audio group "${s}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of a){const a=i.attributes.get("group-id"),n=i.attributes.get("type");if(a!==s||"audio"!==n.toLowerCase())continue;const o=i.attributes.get("channels")??e.attributes.get("channels"),c=null!==o?Number(o.split("/")[0]):null;r.push({id:-1,demuxer:this,backingTrack:null,default:ln(i.attributes),autoselect:ln(i.attributes)||un(i.attributes),languageCode:hn(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:i.fullPath??e.fullPath,fullCodecString:m,pairingMask:1n<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==c&&Number.isInteger(c)&&c>0?c:null}})}}}}return r})),c=[],l=e=>{const t=c.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);t?(t.pairingMask|=e.pairingMask,t.default||(t.default=e.default),t.autoselect||(t.autoselect=e.autoselect),t.lineNumber=Math.min(t.lineNumber,e.lineNumber),null!==e.peakBitrate&&(t.peakBitrate=Math.max(t.peakBitrate??-1/0,e.peakBitrate)),null!==e.averageBitrate&&(t.averageBitrate=Math.max(t.averageBitrate??-1/0,e.averageBitrate)),t.languageCode===xe&&(t.languageCode=e.languageCode)):(e.id=c.length+1,c.push(e))};for(const u of o)for(const e of u)l(e);c.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const u of c)"video"===u.info.type?this.trackBackings.push(new on(u)):this.trackBackings.push(new cn(u));this.internalTracks=c})())}async getTrackBackings(){return await this.readMetadata(),j(this.trackBackings),this.trackBackings}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new an(this,e,i,null),this.segmentedInputs.push(t),t}async getMetadataTags(){return{}}async getMimeType(){return ys}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class nn{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(await e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof on){for(const r of i)if(await r.getCodec()===this.getCodec()){t=r;break}}else{j(this instanceof cn);for(const e of i)if(await e.getCodec()===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t})())}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return{...ht,default:this.internalTrack.autoselect,primary:this.internalTrack.default}}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){j(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}async getDurationFromMetadata(e){return await this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)}async getLiveRefreshInterval(){return await this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}async getFirstPacket(e){return await this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)}async getPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)}async getKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)}async getNextPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)}async getNextKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)}}class on extends nn{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return ji(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}async getColorSpace(){return await this.hydrate(),this.backingVideoTrack.getColorSpace()}async canBeTransparent(){return await this.hydrate(),this.backingVideoTrack.canBeTransparent()}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingVideoTrack.getDecoderConfig()}}class cn extends nn{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return ji(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingAudioTrack.getDecoderConfig()}}const ln=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},un=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},hn=e=>{if(null===e)return xe;const t=e.split("-")[0];return t||xe};class dn{constructor(){this._isIsobmff=!1}}class fn extends dn{constructor(){super(...arguments),this._isIsobmff=!0}async _getMajorBrand(e){let t=e._reader.requestSlice(0,12);if(Xe(t)&&(t=await t),!t)return null;t.skip(4);const i=bc(t,4);return"ftyp"!==i&&"styp"!==i?null:bc(t,4)}_createDemuxer(e){return new vr(e)}}class mn extends fn{async _canReadInput(e){const t=await this._getMajorBrand(e);if(null!==t)return"qt  "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(Xe(t)&&(t=await t),!t)return!1;let r=uc(t),a=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(Xe(t)&&(t=await t),!t)return!1;r=mc(t),a=16}if(r<a)return!1;const s=bc(t,4);if("moof"===s||"sidx"===s)return!0;if("emsg"!==s&&"prft"!==s&&"free"!==s)return!1;i+=r}return!1}get name(){return"MP4"}get mimeType(){return"video/mp4"}}class pn extends fn{async _canReadInput(e){return"qt  "===await this._getMajorBrand(e)}get name(){return"QuickTime File Format"}get mimeType(){return"video/quicktime"}}class gn extends dn{async isSupportedEBMLOfDocType(e,t){let i=e._reader.requestSlice(0,Kr);if(Xe(i)&&(i=await i),!i)return!1;const r=Xr(i);if(null===r)return!1;if(r<1||r>8)return!1;if(Gr(i,r)!==qr.EBML)return!1;const a=Yr(i);if("number"!==typeof a)return!1;let s=e._reader.requestSlice(i.filePos,a);if(Xe(s)&&(s=await s),!s)return!1;const n=i.filePos;for(;s.filePos<=n+a-2;){const e=Jr(s);if(!e)break;const{id:i,size:r}=e,a=s.filePos;if(void 0===r)return!1;switch(i){case qr.EBMLVersion:if(1!==Gr(s,r))return!1;break;case qr.EBMLReadVersion:if(1!==Gr(s,r))return!1;break;case qr.DocType:if(Zr(s,r)!==t)return!1;break;case qr.DocTypeVersion:if(Gr(s,r)>4)return!1}s.filePos=a+r}return!0}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new Ca(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class kn extends gn{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class yn extends dn{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=i.filePos+r.size}const i=await Ra(e._reader,t,t+4096);if(!i)return!1;const r=i.header,a=Qi(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+a,4);if(Xe(s)&&(s=await s),!s)return!1;const n=uc(s);if(n===$i||n===Gi)return!0;t=i.startPos+i.header.totalSize;const o=await Ra(e._reader,t,t+4);if(!o)return!1;const c=o.header;return r.channel===c.channel&&r.sampleRate===c.sampleRate}_createDemuxer(e){return new Fa(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class bn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,12);if(Xe(t)&&(t=await t),!t)return!1;const i=bc(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===bc(t,4)}_createDemuxer(e){return new $a(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class wn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,4);return Xe(t)&&(t=await t),!!t&&"OggS"===bc(t,4)}_createDemuxer(e){return new Wa(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class Tn extends dn{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return Xe(i)&&(i=await i),!!i&&"fLaC"===bc(i,4)}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new ts(e)}}class Sn extends dn{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,xc);if(Xe(i)&&(i=await i),!i)break;const r=_c(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(Xe(i)&&(i=await i),!i)return!1;const r=Ya(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),Xe(i)&&(i=await i),!i)return!1;const a=Ya(i);return!!a&&(r.objectType===a.objectType&&r.samplingFrequencyIndex===a.samplingFrequencyIndex&&r.channelConfiguration===a.channelConfiguration)}_createDemuxer(e){return new Za(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class vn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,205);if(Xe(t)&&(t=await t),!t)return!1;const i=rc(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])}_createDemuxer(e){return new ls(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class Pn extends dn{async _canReadInput(e){let t=e._reader.requestSlice(0,7);if(Xe(t)&&(t=await t),!t)return!1;if(!("#EXTM3U"===bc(t,7)))return!1;if(!(e._rootSource instanceof zs))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0}_createDemuxer(e){return new sn(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return ys}}const In=new mn,xn=new pn,Cn=new gn,Bn=new kn,En=new yn,_n=new bn,Rn=new wn,Fn=new Sn,An=new Tn,Mn=new vn,Dn=new Pn,Nn=[Dn,In,xn,Cn,Bn,_n,Rn,An,En,Fn,Mn],On=[Dn,In,xn,En,Fn,Mn];var Ln=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});Ye();let zn=-1/0,Un=-1/0,qn=null;"undefined"!==typeof FinalizationRegistry&&(qn=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-zn>=1e3&&(ct._error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),zn=t),"undefined"!==typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(t-Un>=1e3&&(ct._error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),Un=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class Wn{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const Hn=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],Vn=new Set(Hn);class jn{get codedWidth(){return this.visibleRect.width}get codedHeight(){return this.visibleRect.height}get displayWidth(){return this.rotation%180===0?this.squarePixelWidth:this.squarePixelHeight}get displayHeight(){return this.rotation%180===0?this.squarePixelHeight:this.squarePixelWidth}get microsecondTimestamp(){return Math.trunc(Me*this.timestamp)}get microsecondDuration(){return Math.trunc(Me*this.duration)}get hasAlpha(){return this.format&&this.format.includes("A")}constructor(e,t){if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!Vn.has(t.format))throw new TypeError("init.format must be one of: "+Hn.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&rt(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0;const i=t.layout??to(t.format,t.codedWidth,t.codedHeight);let r=t.colorSpace??null;null===r&&(r="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:t.visibleRect?.left??0,top:t.visibleRect?.top??0,width:t.visibleRect?.width??t.codedWidth,height:t.visibleRect?.height??t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?Y(e):Y(e).slice(),this._layout=i,this.colorSpace=new Qn(r)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==t?.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==t?.timestamp&&!Number.isFinite(t?.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==t?.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==t?.visibleRect&&rt(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:e.visibleRect?.x??0,top:e.visibleRect?.y??0,width:e.visibleRect?.width??e.codedWidth,height:e.visibleRect?.height??e.codedHeight},this.rotation=t?.rotation??0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=t?.timestamp??e.timestamp/1e6,this.duration=t?.duration??(e.duration??0)/1e6,this.colorSpace=new Qn(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&rt(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new jn(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*Me),duration:Math.trunc((t.duration??0)*Me)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const a=t.visibleRect??{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(a.width,a.height),n=s.getContext("2d",{alpha:We(),willReadFrequently:!0});if(!n)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");n.drawImage(e,-a.left,-a.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:a.width,height:a.height},this.squarePixelWidth=a.width,this.squarePixelHeight=a.height,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=new Qn({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof Wn))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!Hn.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=e.getColorSpace()}this.encodeOptions=t?.encodeOptions??{},this.pixelAspectRatio=it({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),qn?.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return j(null!==this._data),this._data instanceof Wn?new jn(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):Yn(this._data)?new jn(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(j(this._layout),new jn(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new jn(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(qn?.unregister(this),this._data instanceof Wn?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Yn(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){if(eo(e),this._closed)throw new Error("VideoSample is closed.");if(null==(e.format??this.format))throw new Error("Cannot get allocation size when format is null.");if(Yn(this._data))return this._data.allocationSize(e);return ro(this,e).allocationSize}async copyTo(e,t={}){if(!le(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(eo(t),this._closed)throw new Error("VideoSample is closed.");if(null==(t.format??this.format))throw new Error("Cannot copy video sample data when format is null.");if(j(null!==this._data),Yn(this._data))return this._data.copyTo(e,t);if(t.format&&!["RGBA","RGBX","BGRA","BGRX"].includes(this.format)&&["RGBA","RGBX","BGRA","BGRX"].includes(t.format)){if(!(this._data instanceof Wn)){if("undefined"===typeof VideoFrame)throw new Error("For this sample, converting from a non-RGB to an RGB format requires VideoFrame to be defined.");const i=this.toVideoFrame(),r=await i.copyTo(e,t);return i.close(),r}{const i={stack:[],error:void 0,hasError:!1};try{const r=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,await this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},t.colorSpace??"srgb"),!1);if(!(r instanceof jn))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(r.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${r.format}' instead.`);return await r.copyTo(e,t)}catch(c){i.error=c,i.hasError=!0}finally{Ln(i)}}}const i=ro(this,t);j(this.format);const r=Y(e);if(r.byteLength<i.allocationSize)throw new TypeError(`Destination buffer too small. Required: ${i.allocationSize}, Available: ${r.byteLength}`);const a=io(this.format);let s;if(this._data instanceof Wn){let e=this._data.getDataPlanes();if(Xe(e)&&(e=await e),!Array.isArray(e)||e.some(e=>!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');s=e}else if(this._data instanceof Uint8Array)j(this._layout),j(this._layout.length===a.length),s=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");j(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);s=[{data:Y(t.data),stride:4*this.codedWidth}]}const n=[],o=a.length;for(let l=0;l<o;l++){const e=i.computedLayouts[l],t=s[l].stride,a=s[l].data;let o=e.sourceTop*t;o+=e.sourceLeftBytes;let c=e.destinationOffset;const u=e.sourceWidthBytes,h={offset:c,stride:e.destinationStride};for(let i=0;i<e.sourceHeight;i++){if(o+u>a.byteLength)throw new Error("Source buffer OOB read.");if(c+u>r.byteLength)throw new Error("Destination buffer OOB write.");const i=a.subarray(o,o+u);r.set(i,c),o+=t,c+=e.destinationStride}n.push(h)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),a=this.format.includes("X")&&t.format.includes("A");if(e||a)for(let t=0;t<i.allocationSize;t+=4){if(e){const e=r[t],i=r[t+2];r[t]=i,r[t+2]=e}a&&(r[t+3]=255)}}return n}toVideoFrame(){if(this._closed)throw new Error("VideoSample is closed.");if(j(null!==this._data),this._data instanceof Wn){if(null===this.format)throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if format is null.");const e=this._data.getDataPlanes();if(Xe(e))throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if getDataPlanes() returns a promise.");const t=e.reduce((e,t)=>e+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const a=[];for(const s of e)i.set(s.data,r),a.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:a[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return Yn(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(j(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,a,s,n,o,c){let l=0,u=0,h=this.displayWidth,d=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(l=t,u=i,h=r,d=a,f=s,m=n,void 0!==o?(p=o,g=c):(p=h,g=d)):(f=t,m=i,void 0!==r&&(p=r,g=a)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(l))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:l,sy:u,sWidth:h,sHeight:d}=this._rotateSourceRegion(l,u,h,d,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const w=this.rotation%180===0?1:p/g;e.scale(1/w,w),e.drawImage(k,l,u,h,d,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&Zn(t.crop,"options.");const i=e.canvas.width,r=e.canvas.height,a=t.rotation??this.rotation,[s,n]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let o,c,l,u,h=t.crop;h&&(h=Jn(h,s,n));const{sx:d,sy:f,sWidth:m,sHeight:p}=this._rotateSourceRegion(t.crop?.left??0,t.crop?.top??0,t.crop?.width??s,t.crop?.height??n,a);if("fill"===t.fit)o=0,c=0,l=i,u=r;else{const[e,a]=t.crop?[t.crop.width,t.crop.height]:[s,n],h="contain"===t.fit?Math.min(i/e,r/a):Math.max(i/e,r/a);l=e*h,u=a*h,o=(i-l)/2,c=(r-u)/2}e.save();const g=a%180===0?1:l/u;e.translate(i/2,r/2),e.rotate(a*Math.PI/180),e.scale(1/g,g),e.translate(-i/2,-r/2),e.drawImage(this.toCanvasImageSource(),d,f,m,p,o,c,l,u),e.restore()}_rotateSourceRegion(e,t,i,r,a){return 90===a?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===a?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===a&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,a=e.height,[s,n]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,c=i.crop?i.crop.height:n;let l=0;2*r<o&&2*a<c&&(l=Math.floor(Math.log2(Math.min(o/r,c/a))));const u=r*2**l,h=a*2**l,{canvas:d,context:f,isNew:m}=l>0?Gn(u,h):{canvas:e,context:t,isNew:i.targetIsFresh};f.imageSmoothingQuality="high",i.fillBlack?(f.fillStyle="black",f.fillRect(0,0,u,h)):m||f.clearRect(0,0,u,h),this.drawWithFit(f,{fit:i.fit,rotation:i.rotation,crop:i.crop}),f.globalCompositeOperation="copy";for(let p=l;p>1;p--){const e=r*2**p,t=a*2**p;f.drawImage(d,0,0,e,t,0,0,e/2,t/2)}f.globalCompositeOperation="source-over",l>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(d,0,0,2*r,2*a,0,0,r,a),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(j(null!==this._data),this._data instanceof Wn||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}async transform(e){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&Zn(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const t=K(this.rotation+(e.rotate??0)),[i,r]=t%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let a=e.crop;a&&(a=Jn(a,i,r));const s=a?a.width:i,n=a?a.height:r,o=s/n;let c,l;void 0!==e.width&&void 0===e.height?(c=e.width,l=c/o):void 0===e.width&&void 0!==e.height?(l=e.height,c=l*o):void 0!==e.width&&void 0!==e.height?(c=e.width,l=e.height):(c=s,l=n),c=Be(c,e.roundDimensionsTo??1),l=Be(l,e.roundDimensionsTo??1);const u={width:c,height:l,fit:e.fit??"fill",rotation:t,crop:a??{left:0,top:0,width:i,height:r},alpha:e.alpha??"keep"};for(const m of Kn){let e=m(this,u);if(Xe(e)&&(e=await e),null!==e)return e}const{canvas:h,context:d,isNew:f}=Gn(u.width,u.height);return this._drawWithFitAndMipmapping(h,d,{fit:u.fit,rotation:u.rotation,crop:u.crop,targetIsFresh:f,fillBlack:"discard"===u.alpha}),new jn(h,{timestamp:this.timestamp,duration:this.duration,rotation:0})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const Kn=[],Xn=[];let $n=0;const Gn=(e,t)=>{for(const a of Xn)if(a.canvas.width===e&&a.canvas.height===t)return a.age=$n++,{canvas:a.canvas,context:a.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return Xn.length>=3&&Xn.splice(tt(Xn,e=>e.age),1),Xn.push({canvas:i,context:r,age:$n++}),{canvas:i,context:r,isNew:!0}};class Qn{constructor(e){if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(te);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(re);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(se);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=e?.primaries??null,this.transfer=e?.transfer??null,this.matrix=e?.matrix??null,this.fullRange=e?.fullRange??null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const Yn=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,Jn=(e,t,i)=>{const r=Math.min(e.left,t),a=Math.min(e.top,i),s=Math.min(e.width,t-r),n=Math.min(e.height,i-a);return j(s>=0),j(n>=0),{left:r,top:a,width:s,height:n}},Zn=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},eo=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},to=(e,t,i)=>{const r=io(e),a=[];let s=0;for(const n of r){const e=Math.ceil(t/n.widthDivisor),r=Math.ceil(i/n.heightDivisor),o=e*n.sampleBytes,c=o*r;a.push({offset:s,stride:o}),s+=c}return a},io=e=>{const t=(e,t,i,r,a)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return a&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:Te(e),j(!1)}},ro=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,a=ao(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let n;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");n=t.format}else n=e.format;return no(a,n,s)},ao=(e,t,i,r,a)=>{const s={...e};if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!so(a,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},so=(e,t)=>{if(null===e)return!0;const i=io(e);for(let r=0;r<i.length;r++){const e=i[r],a=e.widthDivisor,s=e.heightDivisor;if((t.x||0)%a!==0)return!1;if((t.y||0)%s!==0)return!1}return!0},no=(e,t,i)=>{const r=io(t),a=r.length;if(void 0!==i&&i.length!==a)throw new TypeError(`Layout must have ${a} planes.`);let s=0;const n=[],o=[];for(let c=0;c<a;c++){const t=r[c],a=t.sampleBytes,l=t.widthDivisor,u=t.heightDivisor,h={destinationOffset:0,destinationStride:0,sourceTop:0,sourceHeight:0,sourceLeftBytes:0,sourceWidthBytes:0};if(h.sourceTop=Math.ceil(Math.trunc(e.y||0)/u),h.sourceHeight=Math.ceil(Math.trunc(e.height||0)/u),h.sourceLeftBytes=Math.floor(Math.trunc(e.x||0)/l)*a,h.sourceWidthBytes=Math.floor(Math.trunc(e.width||0)/l)*a,void 0!==i){const e=i[c];if(e.stride<h.sourceWidthBytes)throw new TypeError(`Stride for plane ${c} is too small.`);h.destinationOffset=e.offset,h.destinationStride=e.stride}else h.destinationOffset=s,h.destinationStride=h.sourceWidthBytes;const d=h.destinationStride*h.sourceHeight+h.destinationOffset;if(d>4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(d),s=Math.max(s,d);for(let e=0;e<c;e++){const t=n[e];if(!(o[c]<=t.destinationOffset||o[e]<=h.destinationOffset))throw new TypeError("Planes overlap.")}n.push(h)}return{allocationSize:s,computedLayouts:n}},oo=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]);class co{constructor(){this._referenceCount=0}}class lo{get microsecondTimestamp(){return Math.trunc(Me*this.timestamp)}get microsecondDuration(){return Math.trunc(Me*this.duration)}constructor(e){if(this._closed=!1,po(e)){if(null===e.format)throw new TypeError("AudioData with null format is not supported.");this._data=e,this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=e.numberOfFrames,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp/1e6,this.duration=e.numberOfFrames/e.sampleRate}else if(e instanceof co){if(this._data=e,e._referenceCount++,this.format=e.getFormat(),!oo.has(this.format))throw new TypeError("getFormat() must return an AudioSampleFormat.");if(this.sampleRate=e.getSampleRate(),!Number.isInteger(this.sampleRate)||this.sampleRate<=0)throw new TypeError("getSampleRate() must return a positive integer.");if(this.numberOfFrames=e.getNumberOfFrames(),!Number.isInteger(this.numberOfFrames)||this.numberOfFrames<0)throw new TypeError("getNumberOfFrames() must return a non-negative integer.");if(this.numberOfChannels=e.getNumberOfChannels(),!Number.isInteger(this.numberOfChannels)||this.numberOfChannels<=0)throw new TypeError("getNumberOfChannels() must return a positive integer.");if(this.timestamp=e.getTimestamp(),!Number.isFinite(this.timestamp))throw new TypeError("getTimestamp() must return a finite number.");this.duration=this.numberOfFrames/this.sampleRate}else{if(!e||"object"!==typeof e)throw new TypeError("Invalid AudioDataInit: must be an object.");if(!oo.has(e.format))throw new TypeError("Invalid AudioDataInit: invalid format.");if(!Number.isFinite(e.sampleRate)||e.sampleRate<=0)throw new TypeError("Invalid AudioDataInit: sampleRate must be > 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(e?.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(uo(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*uo(this.format);if(i.byteLength<r)throw new TypeError("Invalid AudioDataInit: insufficient data size.");this._data=i}qn?.register(this,{type:"audio",data:this._data},this)}allocationSize(e){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(!Number.isInteger(e.planeIndex)||e.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==e.format&&!oo.has(e.format))throw new TypeError("Invalid format.");if(void 0!==e.frameOffset&&(!Number.isInteger(e.frameOffset)||e.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==e.frameCount&&(!Number.isInteger(e.frameCount)||e.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const t=e.format??this.format,i=e.frameOffset??0;if(i>=this.numberOfFrames)throw new RangeError("frameOffset out of range");const r=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-i;if(r>this.numberOfFrames-i)throw new RangeError("frameCount out of range");const a=uo(t),s=ho(t);if(s&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!s&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(s?r:r*this.numberOfChannels)*a}copyTo(e,t){if(!le(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!oo.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:a}=t;let{planeIndex:s}=t,n=this.format;const o=i??this.format;if(!o)throw new Error("Destination format not determined");const c=this.numberOfFrames,l=this.numberOfChannels,u=a??0;if(u>=c)throw new RangeError("frameOffset out of range");const h=void 0!==r?r:c-u;if(h>c-u)throw new RangeError("frameCount out of range");const d=uo(o),f=ho(o);if(f&&s>=l)throw new RangeError("planeIndex out of range");if(!f&&0!==s)throw new RangeError("planeIndex out of range");const m=(f?h:h*l)*d;if(e.byteLength<m)throw new RangeError("Destination buffer is too small");const p=J(e),g=mo(o);if(po(this._data)){if(Ue()&&l>2&&o!==n)return void go(this._data,p,n,o,l,s,u,h);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:u,frameCount:h,format:o})}catch(S){if("f32-planar"===o)throw S;n="f32-planar"}}const k=fo(n),y=uo(n),b=ho(n);let w;if(this._data instanceof co){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=c*y*(b?1:l);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(b)if(f)w=e(s),s=0;else{w=new Uint8Array(c*y*l);for(let t=0;t<l;t++){const i=e(t);w.set(i,t*c*y)}}else w=e(0)}else if(this._data instanceof Uint8Array)w=this._data;else if(j("f32-planar"===n),f)w=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:s})),this._data.copyTo(w,{format:"f32-planar",planeIndex:s}),s=0;else{w=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:0})*l);for(let e=0;e<l;e++)this._data.copyTo(w.subarray(e*c*y,(e+1)*c*y),{format:"f32-planar",planeIndex:e})}const T=J(w);for(let v=0;v<h;v++)if(f){let e;e=b?(s*c+(v+u))*y:((v+u)*l+s)*y;g(p,v*d,k(T,e))}else for(let e=0;e<l;e++){let t;t=b?(e*c+(v+u))*y:((v+u)*l+e)*y;g(p,(v*l+e)*d,k(T,t))}}clone(){if(this._closed)throw new Error("AudioSample is closed.");if(this._data instanceof co){const e=new lo(this._data);return e.setTimestamp(this.timestamp),e}if(po(this._data)){const e=new lo(this._data.clone());return e.setTimestamp(this.timestamp),e}return new lo({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp,data:this._data})}trim(e,t=this.numberOfFrames){if(!Number.isInteger(e)||e<0)throw new TypeError("startFrame must be a non-negative integer.");if(!Number.isInteger(t)||t<0)throw new TypeError("endFrame must be a non-negative integer.");if(e>this.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t<e)throw new RangeError("endFrame must not be less than startFrame.");if(this._closed)throw new Error("AudioSample is closed.");const i=t-e,r=uo(this.format);let a;if(ho(this.format)){const t=i*r;if(a=new Uint8Array(t*this.numberOfChannels),i>0)for(let r=0;r<this.numberOfChannels;r++)this.copyTo(a.subarray(r*t,(r+1)*t),{planeIndex:r,format:this.format,frameOffset:e,frameCount:i})}else a=new Uint8Array(i*this.numberOfChannels*r),i>0&&this.copyTo(a,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new lo({data:a,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(qn?.unregister(this),this._data instanceof co?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):po(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof co?this._createAudioDataFromData():po(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(ho(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(new Uint8Array(t,i*e,e),{planeIndex:i,format:this.format});return new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:t})}{const e=new ArrayBuffer(this.allocationSize({planeIndex:0,format:this.format}));return this.copyTo(e,{planeIndex:0,format:this.format}),new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:e})}}toAudioBuffer(){if(this._closed)throw new Error("AudioSample is closed.");const e=new AudioBuffer({numberOfChannels:this.numberOfChannels,length:this.numberOfFrames,sampleRate:this.sampleRate}),t=new Float32Array(this.allocationSize({planeIndex:0,format:"f32-planar"})/4);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(t,{planeIndex:i,format:"f32-planar"}),e.copyToChannel(t,i);return e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}[Symbol.dispose](){this.close()}static*_fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,a=e.length,s=Math.floor(24e4/i);let n=0,o=a;for(;o>0;){const a=Math.min(s,o),c=new Float32Array(i*a);for(let t=0;t<i;t++)e.copyFromChannel(c.subarray(t*a,(t+1)*a),t,n);yield new lo({format:"f32-planar",sampleRate:r,numberOfFrames:a,numberOfChannels:i,timestamp:t+n/r,data:c}),n+=a,o-=a}}static fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,a=e.length,s=Math.floor(24e4/i);let n=0,o=a;const c=[];for(;o>0;){const a=Math.min(s,o),l=new Float32Array(i*a);for(let t=0;t<i;t++)e.copyFromChannel(l.subarray(t*a,(t+1)*a),t,n);const u=new lo({format:"f32-planar",sampleRate:r,numberOfFrames:a,numberOfChannels:i,timestamp:t+n/r,data:l});c.push(u),n+=a,o-=a}return c}}const uo=e=>{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},ho=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},fo=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},mo=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,Ie(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,Ie(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,Ie(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},po=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,go=(e,t,i,r,a,s,n,o)=>{const c=fo(i),l=mo(r),u=uo(i),h=uo(r),d=ho(i);if(ho(r))if(d){const r=new ArrayBuffer(o*u),a=J(r);e.copyTo(r,{planeIndex:s,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++){l(t,e*h,c(a,e*u))}}else{const r=new ArrayBuffer(o*a*u),d=J(r);e.copyTo(r,{planeIndex:0,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++){l(t,e*h,c(d,(e*a+s)*u))}}else if(d){const r=new ArrayBuffer(o*u),s=J(r);for(let d=0;d<a;d++){e.copyTo(r,{planeIndex:d,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++){l(t,(e*a+d)*h,c(s,e*u))}}}else{const r=new ArrayBuffer(o*a*u),s=J(r);e.copyTo(r,{planeIndex:0,frameOffset:n,frameCount:o,format:i});for(let e=0;e<o;e++)for(let i=0;i<a;i++){const r=e*a+i;l(t,r*h,c(s,r*u))}}},ko=[],yo=[],bo=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},wo=e=>{if(!Je(e))throw new TypeError("timestamp must be a number.")},To=(e,t,i)=>i.verifyKeyPackets?t.then(async t=>{if(!t||"delta"===t.type)return t;const i=await e.determinePacketType(t);return i&&(t.type=i),t}):t;class So{constructor(e){if(!(e instanceof Oo))throw new TypeError("track must be an InputTrack.");this._track=e}async getFirstPacket(e={}){if(bo(e),this._track.input._disposed)throw new Zo;return To(this._track,this._track._backing.getFirstPacket(e),e)}async getFirstKeyPacket(e={}){bo(e);const t=await this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null}async getPacket(e,t={}){if(wo(e),bo(t),this._track.input._disposed)throw new Zo;return To(this._track,this._track._backing.getPacket(e,t),t)}async getNextPacket(e,t={}){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");if(bo(t),this._track.input._disposed)throw new Zo;return To(this._track,this._track._backing.getNextPacket(e,t),t)}async getKeyPacket(e,t={}){if(wo(e),bo(t),this._track.input._disposed)throw new Zo;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=await this._track._backing.getKeyPacket(e,t);if(!i)return i;j("key"===i.type);return"delta"===await this._track.determinePacketType(i)?this.getKeyPacket(i.timestamp-1/await this._track.getTimeResolution(),t):i}async getNextKeyPacket(e,t={}){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");if(bo(t),this._track.input._disposed)throw new Zo;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=await this._track._backing.getNextKeyPacket(e,t);if(!i)return i;j("key"===i.type);return"delta"===await this._track.determinePacketType(i)?this.getNextKeyPacket(i,t):i}packets(e,t,i={}){if(void 0!==e&&!(e instanceof ar))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!i?.metadataOnly)throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof ar))throw new TypeError("endPacket must be an EncodedPacket.");if(bo(i),this._track.input._disposed)throw new Zo;const r=[];let{promise:a,resolve:s}=ke(),{promise:n,resolve:o}=ke(),c=!1,l=!1,u=null,h=!1;const d=[],f=()=>Math.max(2,d.length);(async()=>{let u=e??await this.getFirstPacket(i);for(;u&&!l&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=t?.sequenceNumber);)r.length>f()?(({promise:n,resolve:o}=ke()),await n):(r.push(u),s(),({promise:a,resolve:s}=ke()),u=await this.getNextPacket(u,i));c=!0,s()})().catch(e=>{h||(u=e,h=!0,s())});const m=this._track;return{async next(){for(;;){if(m.input._disposed)throw new Zo;if(l)return{value:void 0,done:!0};if(h)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(d.push(t);d.length>0&&t-d[0]>=1e3;)d.shift();return o(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};await a}},return:async()=>(l=!0,o(),s(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}class vo{constructor(e,t){this.onSample=e,this.onError=t}}class Po{mediaSamplesInRange(e=-1/0,t=1/0,i){wo(e),wo(t);const r=[];let a=!1,s=null,{promise:n,resolve:o}=ke(),{promise:c,resolve:l}=ke(),u=!1,h=!1,d=!1,f=null,m=null,p=!1;const g={...i,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{f=await this._createDecoder(i=>{l(),i.timestamp>=t&&(h=!0),h?i.close():(s&&(i.timestamp>e?(r.push(s),a=!0):s.close()),i.timestamp>=e&&(r.push(i),a=!0),s=a?null:i,r.length>0&&(o(),({promise:n,resolve:o}=ke())))},e=>{p||(m=e,p=!0,o())});const i=this._createPacketSink(),k=await i.getKeyPacket(e,g)??await i.getFirstKeyPacket(g);let y=k;const b=i.packets(k??void 0,void 0,g);for(await b.next();y&&!h&&!this._track.input._disposed;){const e=Io(r.length);if(r.length+f.getDecodeQueueSize()>e){({promise:c,resolve:l}=ke()),await c;continue}f.decode(y);const t=await b.next();if(t.done)break;y=t.value}await b.return(),d||this._track.input._disposed||await f.flush(),!a&&s&&r.push(s),u=!0,o()})().catch(e=>{p||(m=e,p=!0,o())}).finally(()=>{f?.close()});const k=this._track,y=()=>{s?.close();for(const e of r)e.close()};return{async next(){for(;;){if(k.input._disposed)throw d=!0,h=!0,y(),new Zo;if(d)return{value:void 0,done:!0};if(p)throw d=!0,h=!0,y(),m;if(r.length>0){const e=r.shift();return l(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};await n}},return:async()=>(d=!0,h=!0,l(),o(),y(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=async function*(e){Symbol.iterator in e?yield*e[Symbol.iterator]():yield*e[Symbol.asyncIterator]()}(e),r=[],a=[];let{promise:s,resolve:n}=ke(),{promise:o,resolve:c}=ke(),l=!1,u=!1,h=null,d=null,f=!1;const m=e=>{a.push(e),n(),({promise:s,resolve:n}=ke())},p={...t,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{h=await this._createDecoder(e=>{if(c(),u)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i<t;i++)m(i<t-1?e.clone():e);else e.close()},e=>{f||(d=e,f=!0,n())});const e=this._createPacketSink();let t=null,s=null,g=-1;const k=async()=>{j(s),j(h);let t=s;for(h.decode(t);t.sequenceNumber<g;){const i=Io(a.length);for(;a.length+h.getDecodeQueueSize()>i&&!u;)({promise:o,resolve:c}=ke()),await o;if(u)break;const r=await e.getNextPacket(t,p);j(r),h.decode(r),t=r}g=-1},y=async()=>{j(h),await h.flush();for(let e=0;e<r.length;e++)m(null);r.length=0};for await(const a of i){if(wo(a),u||this._track.input._disposed)break;const i=await e.getPacket(a,p),n=i&&await e.getKeyPacket(a,p);n?(t&&(n.sequenceNumber!==s.sequenceNumber||i.timestamp<t.timestamp)&&(await k(),await y()),r.push(i.timestamp),g=Math.max(i.sequenceNumber,g),t=i,s=n):(-1!==g&&(await k(),await y()),m(null),t=null)}u||this._track.input._disposed||(-1!==g&&await k(),await y()),l=!0,n()})().catch(e=>{f||(d=e,f=!0,n())}).finally(()=>{h?.close()});const g=this._track,k=()=>{for(const e of a)e?.close()};return{async next(){for(;;){if(g.input._disposed)throw u=!0,k(),new Zo;if(u)return{value:void 0,done:!0};if(f)throw u=!0,k(),d;if(a.length>0){const e=a.shift();return j(void 0!==e),c(),{value:e,done:!1}}if(l)return{value:void 0,done:!0};await s}},return:async()=>(u=!0,c(),n(),k(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}const Io=e=>0===e?40:8;class xo extends vo{constructor(e,t,i,r,a,s){super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=a,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new Le,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const n=ko.find(e=>e.supports(i,r));if(n)this.customDecoder=new n,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof jn))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();j(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(Ve()){if("avc"===i&&this.decoderConfig.description){const e=Mt(Y(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=Nt(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig={...this.decoderConfig,hardwareAcceleration:"prefer-software"}),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=Lt(t),this.decoderConfig={...this.decoderConfig,description:At(e)}))}}oe(this.decoderConfig.colorSpace)||(this.decoderConfig={...this.decoderConfig,colorSpace:{primaries:this.decoderConfig.colorSpace?.primaries??"bt709",matrix:this.decoderConfig.colorSpace?.matrix??"bt709",transfer:this.decoderConfig.colorSpace?.transfer??"bt709",fullRange:this.decoderConfig.colorSpace?.fullRange??!1}})}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(j(this.decoder),Math.max(this.decoder.decodeQueueSize,this.alphaDecoder?.decodeQueueSize??0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(j(this.decoder),Ue()||ge(this.inputTimestamps,e.timestamp,e=>e),Ve()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const a of xt(e.data,this.decoderConfig)){const r=Ct(e.data[a.offset]);if(i||(i=r>=1&&r<=5),r===wt.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(a.offset,a.offset+a.length))}if(!this.decoderConfig.description)for(let e=0;e<t.length;e++){const i=t[e];if(Ct(i[0])!==wt.SPS)continue;const r=Nt(i);r&&0!==r.maxDecFrameBuffering&&1!==r.bitstreamRestrictionFlag&&(t[e]=Lt(r));break}const r=((e,t)=>{if(t.description){const i=3&Y(t.description)[4];return Rt(e,i+1)}return _t(e)})(t,this.decoderConfig);e=new ar(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=Jt(e.data,this.decoderConfig);t&&(e=new ar(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new Bo),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();j(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();j(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=ni(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(t??e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of zt(e,this.decoderConfig)){const i=Ut(e[t.offset]);if(i===St.RASL_N||i===St.RASL_R)return!0}return!1}sampleHandler(e){if(Ue()){if(this.sampleQueue.length>0&&e.timestamp>=X(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}ge(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();j(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}async mergeAlpha(e,t){const i=ke();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){j(this.merger);const i=await this.merger.merge(e,t);r.sample=new jn(i)}else r.sample=new jn(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(a){ye(this.finalSamples,r),this.onError(a)}finally{ye(this.mergeAlphaPromises,i.promise),i.resolve()}}async flush(){if(this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(j(this.decoder),await Promise.all([this.decoder.flush(),this.alphaDecoder?.flush()]),await Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),Ue()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(j(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.merger?.close());for(const e of this.sampleQueue)e.close();this.sampleQueue.length=0}}let Co=null;class Bo{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!Co){const e=new Blob([`(${Eo.toString()})()`],{type:"application/javascript"});Co=URL.createObjectURL(e)}const e=Ie(navigator.hardwareConcurrency,1,4);for(let t=0;t<e;t++){const e=new Worker(Co);e.addEventListener("message",e=>{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=ke();this.pendingRequests.set(i,r);const a=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,a.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const Eo=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:a,alpha:s}=e.data;i=i.then(async()=>{try{const e=await r(a,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{a.close(),s.close()}})});const r=async(e,t)=>{const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),c=i.includes("P12"),l=r.includes("P10"),u=r.includes("P12");if(l!==o||u!==c)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return await a(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return await s(e,t,i);if("NV12"===i)return await n(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)},a=async(e,t,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=new Uint8Array(4*s);await e.copyTo(n);const c=await o(t,r,a,1);for(let o=0,u=3;o<s;o++,u+=4)n[u]=c[o];const l={format:"RGBX"===i||"RGBA"===i?"RGBA":"BGRA",codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[n.buffer]};return new VideoFrame(n,l)},s=async(e,t,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=i.includes("P10"),n=i.includes("P12"),c=s||n?2:1;let l,u;i.startsWith("I420")?(l=Math.ceil(r/2),u=Math.ceil(a/2)):i.startsWith("I422")?(l=Math.ceil(r/2),u=a):(l=r,u=a);const h=r*a,d=h*c,f=l*u*c,m=new Uint8Array(d+2*f+h*c);await e.copyTo(m);const p=await o(t,r,a,c),g=d+2*f;m.set(p,g);const k={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[m.buffer]};return new VideoFrame(m,k)},n=async(e,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=Math.ceil(r/2)*Math.ceil(a/2),c=e.allocationSize();t&&t.byteLength===c||(t=new Uint8Array(c)),await e.copyTo(t);const l=new Uint8Array(s+2*n+s);l.set(t.subarray(0,s),0);const u=s,h=s+n,d=s;for(let o=0;o<n;o++)l[u+o]=t[d+2*o],l[h+o]=t[d+2*o+1];const f=await o(i,r,a,1);l.set(f,s+2*n);const m={format:"I420A",codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[l.buffer]};return new VideoFrame(l,m)},o=async(t,i,r,a)=>{const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),await t.copyTo(e);const n=t.format;if("RGBA"===n||"BGRA"===n||"RGBX"===n||"BGRX"===n){const t="RGBA"===n||"RGBX"===n?0:2,a=i*r;for(let i=0;i<a;i++)e[i]=e[4*i+t];return e.subarray(0,a)}return e.subarray(0,i*r*a)}},_o=e=>{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class Ro extends Po{constructor(e,t={}){if(!(e instanceof Uo))throw new TypeError("videoTrack must be an InputVideoTrack.");_o(t),super(),this._track=e,this._decoderOptions=t}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(je("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=await this._track.getCodec(),r=await this._track.getRotation();let a=await this._track.getDecoderConfig();const s=await this._track.getTimeResolution();return j(i&&a),a={...a,hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency},new xo(e,t,i,a,r,s)}_createPacketSink(){return new So(this._track)}async getSample(e,t={}){wo(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Fo{constructor(e,t={}){if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof Uo))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&Zn(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&_o(t.decoderOptions),this._videoTrack=e,this._alpha=t.alpha??!1,this._options=t,this._fit=t.fit??"fill",this._videoSampleSink=new Ro(e,t.decoderOptions),this._canvasPool=Array.from({length:t.poolSize??0},()=>null)}_ensureInit(){return this._initPromise??(this._initPromise=(async()=>{const e=this._options,t=this._videoTrack,i=e.rotation??await t.getRotation(),r=await t.getSquarePixelWidth(),a=await t.getSquarePixelHeight(),[s,n]=i%180===0?[r,a]:[a,r];let o=e.crop;o&&(o=Jn(o,s,n));let[c,l]=o?[o.width,o.height]:[s,n];const u=c/l;void 0!==e.width&&void 0===e.height?(c=e.width,l=Math.round(c/u)):void 0===e.width&&void 0!==e.height?(l=e.height,c=Math.round(l*u)):void 0!==e.width&&void 0!==e.height&&(c=e.width,l=e.height),this._width=c,this._height=l,this._rotation=i,this._crop=o})())}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],a=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),a=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||We()});j(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:a,fillBlack:!this._alpha&&We()});const n={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),n}async getCanvas(e,t){wo(e),await this._ensureInit();const i=await this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)}async*canvases(e,t,i){await this._ensureInit(),yield*Pe(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e))}async*canvasesAtTimestamps(e,t){await this._ensureInit(),yield*Pe(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e))}}class Ao extends vo{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new Le,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const a=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const a=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(a*s)/s),e(t)},s=yo.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof lo))throw new TypeError("The argument passed to onSample must be an AudioSample.");a(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{a(new lo(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(j(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(j(this.decoder),this.expectedFirstTimestamp??(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}async flush(){this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(j(this.decoder),await this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(j(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class Mo extends vo{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,j(Ri.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:a,littleEndian:s}=Vi(this.codec);switch(this.inputSampleSize=a,a){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-128:"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const a=(1<<i|(15&r)<<i-4|1<<i-5)-33;return 0===t?a:-a})(e.getUint8(t)):"alaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let a=0;return a=4!==i?1<<i|(15&r)<<i-4|1<<i-5:r<<1|1,0===t?a:-a})(e.getUint8(t)):j(!1);break;case 2:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint16(t,s)-32768:"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):j(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>Se(e,t,s)-2**23:"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>Se(e,t,i)<<8>>8)(e,t,s):j(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-2**31:"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):j(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):j(!1);break;default:Te(a),j(!1)}switch(a){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+128));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:Te(a),j(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=J(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,a=new ArrayBuffer(r),s=new DataView(a);for(let l=0;l<i*this.decoderConfig.numberOfChannels;l++){const e=l*this.inputSampleSize,i=l*this.outputSampleSize,r=this.readInputValue(t,e);this.writeOutputValue(s,i,r)}const n=i/this.decoderConfig.sampleRate;(null===this.currentTimestamp||Math.abs(e.timestamp-this.currentTimestamp)>=n)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=n;const c=new lo({format:this.outputFormat,data:a,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(c)}async flush(){}close(){}}class Do extends Po{constructor(e){if(!(e instanceof qo))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(je("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=await this._track.getCodec(),r=await this._track.getDecoderConfig();return j(i&&r),Ri.includes(r.codec)?new Mo(e,t,r):new Ao(e,t,i,r)}_createPacketSink(){return new So(this._track)}async getSample(e,t={}){wo(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class No{constructor(e){if(!(e instanceof qo))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new Do(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}async getBuffer(e,t){wo(e);const i=await this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)}buffers(e,t,i){return Pe(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return Pe(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class Oo{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof Uo}isAudioTrack(){return this instanceof qo}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}async getInternalCodecId(){return this._backing.getInternalCodecId()}get internalCodecId(){return Lo(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}async getLanguageCode(){return this._backing.getLanguageCode()}get languageCode(){return Lo(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}async getName(){return this._backing.getName()}get name(){return Lo(this._backing.getName(),"name","getName")}async getTimeResolution(){return this._backing.getTimeResolution()}get timeResolution(){return Lo(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}async isRelativeToUnixEpoch(){return this._backing.isRelativeToUnixEpoch()}async getUnixTimeForTimestamp(e){return this._backing.getUnixTimeForTimestamp(e)}async hasUnixTimeMapping(){return null!==await this._backing.getUnixTimeForTimestamp(await this.getFirstTimestamp())}async getDisposition(){return this._backing.getDisposition()}get disposition(){return Lo(this._backing.getDisposition(),"disposition","getDisposition")}async getBitrate(){return this._backing.getBitrate()}async getAverageBitrate(){return this._backing.getAverageBitrate()}async getFirstTimestamp(){const e=await this._backing.getFirstPacket({metadataOnly:!0});return e?.timestamp??0}async computeDuration(e){const t=await this._backing.getPacket(1/0,{metadataOnly:!0,...e});return Ee((t?.timestamp??0)+(t?.duration??0),await this.getTimeResolution())}async getDurationFromMetadata(e={}){return this._backing.getDurationFromMetadata(e)}async computePacketStats(e=1/0,t){const i=new So(this);let r=1/0,a=-1/0,s=0,n=0;for await(const o of i.packets(void 0,void 0,{metadataOnly:!0,...t})){if(s>=e&&o.timestamp>=a)break;r=Math.min(r,o.timestamp),a=Math.max(a,o.timestamp+o.duration),s++,n+=o.byteLength}return{packetCount:s,averagePacketRate:s?Number((s/(a-r)).toPrecision(16)):0,averageBitrate:s?Number((8*n/(a-r)).toPrecision(16)):0}}async isLive(){return null!==await this._backing.getLiveRefreshInterval()}async getLiveRefreshInterval(){return this._backing.getLiveRefreshInterval()}canBePairedWith(e){if(!(e instanceof Oo))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&0n!==(this._backing.getPairingMask()&e._backing.getPairingMask())}async getPairableTracks(e){return this.input.getTracks(jo({filter:e=>e.canBePairedWith(this)},e))}async getPairableVideoTracks(e){return this.input.getVideoTracks(jo({filter:e=>e.canBePairedWith(this)},e))}async getPairableAudioTracks(e){return this.input.getAudioTracks(jo({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableVideoTrack(e){return this.input.getPrimaryVideoTrack(jo({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableAudioTrack(e){return this.input.getPrimaryAudioTrack(jo({filter:e=>e.canBePairedWith(this)},e))}async hasPairableTrack(e){e&&(e=zo(e));const t=await this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||await e(i)))return!0;return!1}hasPairableVideoTrack(e){return e&&(e=zo(e)),this.hasPairableTrack(async t=>t.isVideoTrack()&&(!e||await e(t)))}hasPairableAudioTrack(e){return e&&(e=zo(e)),this.hasPairableTrack(async t=>t.isAudioTrack()&&(!e||await e(t)))}}const Lo=(e,t,i)=>{if(Xe(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},zo=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return Xe(r)?r.then(i):i(r)}:void 0};class Uo extends Oo{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}async getCodec(){return this._backing.getCodec()}get codec(){return Lo(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??"prores"===await this._backing.getCodec()}async getCodedWidth(){return this._backing.getCodedWidth()}get codedWidth(){return Lo(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}async getCodedHeight(){return this._backing.getCodedHeight()}get codedHeight(){return Lo(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}async getRotation(){return this._backing.getRotation()}get rotation(){return Lo(this._backing.getRotation(),"rotation","getRotation")}async getSquarePixelWidth(){return this._backing.getSquarePixelWidth()}get squarePixelWidth(){return Lo(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}async getSquarePixelHeight(){return this._backing.getSquarePixelHeight()}get squarePixelHeight(){return Lo(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}async getPixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=it({num:await this.getSquarePixelWidth()*await this.getCodedHeight(),den:await this.getSquarePixelHeight()*await this.getCodedWidth()}))}get pixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=it({num:Lo(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*Lo(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:Lo(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*Lo(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")}))}async getDisplayWidth(){const e=await(this._backing.getMetadataDisplayWidth?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()}get displayWidth(){const e=this._backing.getMetadataDisplayWidth?.();if(void 0!==e){const t=Lo(e,"displayWidth","getDisplayWidth");if(null!==t)return t}const t=Lo(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return Lo(t,"displayWidth","getDisplayWidth")}async getDisplayHeight(){const e=await(this._backing.getMetadataDisplayHeight?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()}get displayHeight(){const e=this._backing.getMetadataDisplayHeight?.();if(void 0!==e){const t=Lo(e,"displayHeight","getDisplayHeight");if(null!==t)return t}const t=Lo(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return Lo(t,"displayHeight","getDisplayHeight")}async getColorSpace(){return this._backing.getColorSpace()}async hasHighDynamicRange(){const e=await this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix}async canBeTransparent(){return this._backing.canBeTransparent()}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(j(null!==t),ko.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(await VideoDecoder.isConfigSupported(e)).supported}catch(e){return ct._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=await this.getCodec();if(null===t)return null;const i=await this.getDecoderConfig();return j(i),ni(t,i,e.data)}async computeFrameRateMetrics(e={}){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!Je(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const t=await this.getTimeResolution(),i=e.targetPacketCount??256,r=new So(this),a=[];let s=-1/0,n=0;for await(const I of r.packets(void 0,void 0,{metadataOnly:!0})){if(a.length>=i&&I.timestamp>=s)break;a.push(I.timestamp),s=Math.max(s,I.timestamp),n++}const o=new Float64Array(a.length);for(let I=0;I<a.length;I++)o[I]=Math.round(a[I]*t);o.sort();let c=1;for(let I=1;I<o.length;I++)o[I]!==o[c-1]&&(o[c++]=o[I]);if(c<2)return{underlyingFrameRate:null,bestGuessFrameRate:t,minFrameRate:t,maxFrameRate:t,averageFrameRate:t,medianFrameRate:t,frameRateIsConstant:!0,probedPacketCount:n};const l=o.subarray(0,c),u=Xo(l,t),h=u??t,d=null!==u?t/u:null,f=new Map;let m=1/0,p=-1/0,g=0;for(let I=1;I<c;I++){const e=l[I]-l[I-1],t=null!==d?Math.max(1,Math.round(e/d)):e;f.set(t,(f.get(t)??0)+1),m=Math.min(m,t),p=Math.max(p,t),g+=t}const k=c-1,y=[...f.keys()].sort((e,t)=>e-t),b=k-1>>1,w=k>>1;let T=0,S=0,v=0;for(const I of y)if(v+=f.get(I),0===T&&v>b&&(T=I),v>w){S=I;break}const P=(h/T+h/S)/2;return{underlyingFrameRate:u,bestGuessFrameRate:null!==u?u:Go(P),minFrameRate:h/p,maxFrameRate:h/m,averageFrameRate:h*k/g,medianFrameRate:P,frameRateIsConstant:null!==u&&1===m&&1===p,probedPacketCount:n}}}class qo extends Oo{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}async getCodec(){return this._backing.getCodec()}get codec(){return Lo(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??!0}async getNumberOfChannels(){return this._backing.getNumberOfChannels()}get numberOfChannels(){return Lo(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}async getSampleRate(){return this._backing.getSampleRate()}get sampleRate(){return Lo(this._backing.getSampleRate(),"sampleRate","getSampleRate")}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(j(null!==t),yo.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(await AudioDecoder.isConfigSupported(e)).supported}catch(e){return ct._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof ar))throw new TypeError("packet must be an EncodedPacket.");return null===await this.getCodec()?null:"key"}}const Wo=e=>-(e??-1/0),Ho=e=>-e,Vo=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when 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i=e;if(t?.filter){const r=e.map(e=>t.filter(e));if(r.some(e=>Xe(e))){const t=await Promise.all(r);i=e.filter((e,i)=>t[i])}else i=e.filter((e,t)=>r[t])}if(!t?.sortBy)return i;const r=i.map(e=>t.sortBy(e)),a=r.some(e=>Xe(e))?await Promise.all(r):r;return i.map((e,t)=>({track:e,sortValue:a[t]})).sort((e,t)=>{const i=Array.isArray(e.sortValue)?e.sortValue:[e.sortValue],r=Array.isArray(t.sortValue)?t.sortValue:[t.sortValue],a=Math.max(i.length,r.length);for(let s=0;s<a;s++){const e=i[s]??0,t=r[s]??0;if(e!==t)return e-t}return 0}).map(e=>e.track)},Xo=(e,t)=>{const i=1e6,r=1+1e-9,a=[12,15,20,24e3/1001,24,25,3e4/1001,30,48,50,6e4/1001,60,100,12e4/1001,120,144,240];if(e.length<2)return null;const s=new Float64Array(e.length-1);for(let T=1;T<e.length;T++){const t=e[T]-e[T-1];if(!(t>0))return null;s[T-1]=t}const n=s.slice();n.sort();let o=n[Math.floor(.05*n.length)];for(let T=0;T<6;T++){let e=0,t=0;for(const a of s){const i=Math.max(1,Math.round(a/o));Math.abs(a-i*o)>=r||(e+=a,t+=i)}if(0===t)return null;const i=e/t;if(Math.abs(i-o)<=1e-12*Math.max(1,o)){o=i;break}o=i}let c=0,l=0,u=0;for(const T of s){const e=Math.max(1,Math.round(T/o));Math.abs(T-e*o)>=r||(c++,l+=T,u+=e)}if(c/s.length<.98)return null;o=l/u;const h=1/Math.min(u,1e3),d=Math.max(Number.EPSILON,o-h),f=o+h,m=t/f,p=t/d,g=t/o;let k=null,y=1/0;for(const T of a){if(T<m||T>p)continue;const e=Math.abs(T/g-1);e<y&&(k=T,y=e)}if(null===k){const e=$o(d,f,i),r=$o(m,p,i);if(r&&(!e||r.den<e.den||r.den===e.den&&r.num<=e.num))k=r.num/r.den;else{if(!e)return null;k=t*e.den/e.num}}const b=t/k;let w=0;for(const T of s){const e=Math.max(1,Math.round(T/b));Math.abs(T-e*b)<r&&w++}return w/s.length<.98?null:k},$o=(e,t,i)=>{for(let r=1;r<=i;r++){const i=Math.floor(e*r)+1;if(i/r<t)return it({num:i,den:r})}return null},Go=e=>{const t=[24/1.001,30/1.001,60/1.001,120/1.001],i=[12,15,20,24,25,30,48,50,60,100,120,144,240];for(const s of t)if(Math.abs(s/e-1)<=5e-4)return s;let r=e,a=1/0;for(const s of i){const t=Math.abs(s/e-1);t<=.025&&t<a&&(r=s,a=t)}return r};Ye();const Qo=2;class Yo extends st{get disposed(){return this._disposed}constructor(e){if(super(),this._demuxerPromise=null,this._format=null,this._trackBackingsCache=null,this._backingToTrack=new Map,this._disposed=!1,this._nextSourceCacheAge=0,this._sourceRefs=[],this._sourceCache=[],this._sourceCachePromises=[],this._onFormatDetermined=null,!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(!Array.isArray(e.formats)||e.formats.some(e=>!(e instanceof dn)))throw new TypeError("options.formats must be an array of InputFormat.");if(!(e.source instanceof Os||e.source instanceof Ls))throw new TypeError("options.source must be a Source or SourceRef.");if(e.source instanceof Os&&e.source._disposed)throw new TypeError("options.source must not be a disposed Source.");if(void 0!==e.initInput&&!(e.initInput instanceof Yo))throw new TypeError("options.initInput, when provided, must be an Input.");void 0!==e.formatOptions&&((e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(`${t}, when provided, must be an object.`);if(void 0!==e.isobmff){if(!e.isobmff||"object"!==typeof e.isobmff)throw new TypeError(`${t}.isobmff, when provided, must be an object.`);if(void 0!==e.isobmff.resolveKeyId&&"function"!==typeof e.isobmff.resolveKeyId)throw new TypeError(`${t}.isobmff.resolveKeyId, when provided, must be a function.`)}if(void 0!==e.hls){if(!e.hls||"object"!==typeof e.hls)throw new TypeError(`${t}.hls, when provided, must be an object.`);if(void 0!==e.hls.offsetTimestampsByDateTime&&"boolean"!==typeof e.hls.offsetTimestampsByDateTime)throw new TypeError(`${t}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}})(e.formatOptions,"formatOptions"),this._formats=e.formats,this._initInput=e.initInput??null,this._formatOptions=e.formatOptions??{},e.source instanceof Os?this._rootRef=e.source.ref():this._rootRef=e.source,this._sourceRefs.push(this._rootRef)}get _rootSource(){return this._rootRef.source}async _getSourceUncached(e){j(this._rootSource instanceof zs);const t=await this._rootSource._resolveRequest(e);return this._emit("source",{source:t.source,request:e,isRoot:e.isRoot}),t}_getSourceCached(e,t=1){const i=this._sourceCache.find(i=>i.cacheGroup===t&&Us(i.request,e));if(i)return i.age++,Promise.resolve(i.sourceRef.source.ref());const r=this._sourceCachePromises.find(i=>i.cacheGroup===t&&Us(i.request,e));if(r)return r.promise.then(e=>e.sourceRef.source.ref());const a=(async()=>{const i=await this._getSourceUncached(e);if(et(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount)>=4){const e=tt(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount?e.age:1/0);j(-1!==e);const i=this._sourceCache[e];this._sourceCache.splice(e,1),i.sourceRef.free(),ye(this._sourceRefs,i.sourceRef)}this._sourceRefs.push(i);const r=this._sourceCachePromises.findIndex(t=>t.request===e);j(-1!==r),this._sourceCachePromises.splice(r,1);return{request:e,sourceRef:i,age:this._nextSourceCacheAge++,cacheGroup:t}})();return this._sourceCachePromises.push({request:e,cacheGroup:t,promise:a}),a.then(e=>{const t=e.sourceRef.source.ref();return this._sourceCache.push(e),t})}_getDemuxer(){return this._demuxerPromise??(this._demuxerPromise=(async()=>{this._reader=new ec(this._rootSource),this._emit("source",{source:this._rootSource,request:null,isRoot:!0});for(const e of this._formats){if(await e._canReadInput(this))return this._format=e,this._onFormatDetermined?.(e),e._createDemuxer(this)}throw new Jo})())}get source(){return this._rootSource}async getFormat(){return await this._getDemuxer(),j(this._format),this._format}async canRead(){try{return await this._getDemuxer(),!0}catch(e){if(e instanceof Jo)return!1;throw e}}async getFirstTimestamp(e){e??(e=await this.getTracks());const t=e.filter(e=>null!==e);if(0===t.length)return 0;const i=await Promise.all(t.map(e=>e._backing.getFirstPacket({metadataOnly:!0}))),r=Math.min(...i.map(e=>e?.timestamp??1/0));return r===1/0?0:r}async computeDuration(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e);if(0===i.length)return 0;const r=await Promise.all(i.map(e=>e.computeDuration(t)));return Math.max(...r)}async getDurationFromMetadata(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e),r=(await Promise.all(i.map(e=>e.getDurationFromMetadata(t)))).filter(e=>null!==e);return 0===r.length?null:Math.max(...r)}async getTracks(e){e&&(e=Vo(e));const t=(await this._getTrackBackings()).map(e=>this._wrapBackingAsTrack(e));return Ko(t,e)}async getVideoTracks(e){e&&(e=Vo(e));const t=(await this.getTracks()).filter(e=>e.isVideoTrack());return Ko(t,e)}async getAudioTracks(e){e&&(e=Vo(e));const t=(await this.getTracks()).filter(e=>e.isAudioTrack());return Ko(t,e)}async getPrimaryVideoTrack(e){e&&(e=Vo(e));const t=jo(e,{sortBy:async e=>[Ho((await e.getDisposition()).default),Ho(await e.hasPairableAudioTrack()),Ho(!(await e.hasOnlyKeyPackets())),Wo(await e.getBitrate())]});return(await this.getVideoTracks(t))[0]??null}async getPrimaryAudioTrack(e){e&&(e=Vo(e));const t=await this.getPrimaryVideoTrack(),i=jo(e,{sortBy:async e=>[Ho(!t||e.canBePairedWith(t)),Ho((await e.getDisposition()).default),Wo(await e.getBitrate())]});return(await this.getAudioTracks(i))[0]??null}async _getTrackBackings(){const e=await this._getDemuxer();return this._trackBackingsCache??(this._trackBackingsCache=await e.getTrackBackings())}_wrapBackingAsTrack(e){const t=this._backingToTrack.get(e);if(t)return t;const i="video"===e.getType()?new Uo(this,e):new qo(this,e);return this._backingToTrack.set(e,i),i}async getMimeType(){return(await this._getDemuxer()).getMimeType()}async getMetadataTags(){return(await this._getDemuxer()).getMetadataTags()}dispose(){if(!this._disposed){this._disposed=!0;for(const e of 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tc(r.bytes,r.view,r.offset,e,i):null}requestSliceRange(e,t,i){if(this.source._disposed)throw new Zo;if(e<0)return null;if(null!==this.fileSizeNonStrict)return this.requestSlice(e,Ie(this.fileSizeNonStrict-e,t,i));{const r=this.requestSlice(e,i),a=r=>r||(j(null!==this.fileSizeNonStrict),this.requestSlice(e,Ie(this.fileSizeNonStrict-e,t,i)));return Xe(r)?r.then(a):a(r)}}requestEntireFile(){if(null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);return(async()=>{const e=[];let t=0;for(;;){if(1===e.length&&null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);let i=this.requestSliceRange(t,0,1024);if(Xe(i)&&(i=await i),!i||0===i.length)break;const r=rc(i,i.length);e.push(r),t+=i.length}const i=new Uint8Array(t);let r=0;for(const a of e)i.set(a,r),r+=a.length;return new tc(i,J(i),0,0,t)})()}}class tc{constructor(e,t,i,r,a){this.bytes=e,this.view=t,this.offset=i,this.start=r,this.end=a,this.bufferPos=r-i}static tempFromBytes(e){return new tc(e,J(e),0,0,e.length)}get length(){return this.end-this.start}get filePos(){return this.offset+this.bufferPos}set filePos(e){this.bufferPos=e-this.offset}get remainingLength(){return Math.max(this.end-this.filePos,0)}skip(e){this.bufferPos+=e}slice(e,t=this.end-e){if(e<this.start||e+t>this.end)throw new RangeError("Slicing outside of original slice.");return new tc(this.bytes,this.view,this.offset,e,e+t)}}const ic=(e,t)=>{if(e.filePos<e.start||e.filePos+t>e.end)throw new RangeError(`Tried reading [${e.filePos}, ${e.filePos+t}), but slice is [${e.start}, ${e.end}). This is likely an internal error, please report it alongside the file that caused it.`)},rc=(e,t)=>{ic(e,t);const i=e.bytes.subarray(e.bufferPos,e.bufferPos+t);return e.bufferPos+=t,i},ac=e=>(ic(e,1),e.view.getUint8(e.bufferPos++)),sc=(e,t)=>{ic(e,2);const i=e.view.getUint16(e.bufferPos,t);return e.bufferPos+=2,i},nc=e=>{ic(e,2);const t=e.view.getUint16(e.bufferPos,!1);return e.bufferPos+=2,t},oc=e=>{ic(e,3);const t=Se(e.view,e.bufferPos,!1);return e.bufferPos+=3,t},cc=e=>{ic(e,2);const t=e.view.getInt16(e.bufferPos,!1);return e.bufferPos+=2,t},lc=(e,t)=>{ic(e,4);const i=e.view.getUint32(e.bufferPos,t);return e.bufferPos+=4,i},uc=e=>{ic(e,4);const t=e.view.getUint32(e.bufferPos,!1);return e.bufferPos+=4,t},hc=e=>{ic(e,4);const t=e.view.getUint32(e.bufferPos,!0);return e.bufferPos+=4,t},dc=e=>{ic(e,4);const t=e.view.getInt32(e.bufferPos,!1);return e.bufferPos+=4,t},fc=(e,t)=>{let i,r;return t?(i=lc(e,!0),r=lc(e,!0)):(r=lc(e,!1),i=lc(e,!1)),4294967296*r+i},mc=e=>4294967296*uc(e)+uc(e),pc=e=>4294967296*dc(e)+uc(e),gc=e=>{const t=hc(e),i=(e=>{ic(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},kc=e=>{ic(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},yc=e=>{ic(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},bc=(e,t)=>{ic(e,t);let i="";for(let r=0;r<t;r++)i+=String.fromCharCode(e.bytes[e.bufferPos++]);return i},wc=(e,t,i)=>Z.decode(rc(e,t)).split("\n").map(e=>e.trim()).filter(e=>e.length>0&&!i?.ignore?.(e));var Tc,Sc,vc,Pc;(Sc=Tc||(Tc={}))[Sc.Unsynchronisation=128]="Unsynchronisation",Sc[Sc.ExtendedHeader=64]="ExtendedHeader",Sc[Sc.ExperimentalIndicator=32]="ExperimentalIndicator",Sc[Sc.Footer=16]="Footer",(Pc=vc||(vc={}))[Pc.ISO_8859_1=0]="ISO_8859_1",Pc[Pc.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",Pc[Pc.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",Pc[Pc.UTF_8=3]="UTF_8";const Ic=128,xc=10,Cc=["Blues","Classic rock","Country","Dance","Disco","Funk","Grunge","Hip-hop","Jazz","Metal","New age","Oldies","Other","Pop","Rhythm and blues","Rap","Reggae","Rock","Techno","Industrial","Alternative","Ska","Death metal","Pranks","Soundtrack","Euro-techno","Ambient","Trip-hop","Vocal","Jazz & funk","Fusion","Trance","Classical","Instrumental","Acid","House","Game","Sound clip","Gospel","Noise","Alternative rock","Bass","Soul","Punk","Space","Meditative","Instrumental pop","Instrumental rock","Ethnic","Gothic","Darkwave","Techno-industrial","Electronic","Pop-folk","Eurodance","Dream","Southern rock","Comedy","Cult","Gangsta","Top 40","Christian rap","Pop/funk","Jungle music","Native US","Cabaret","New wave","Psychedelic","Rave","Showtunes","Trailer","Lo-fi","Tribal","Acid punk","Acid jazz","Polka","Retro","Musical","Rock 'n' roll","Hard rock","Folk","Folk rock","National folk","Swing","Fast fusion","Bebop","Latin","Revival","Celtic","Bluegrass","Avantgarde","Gothic rock","Progressive rock","Psychedelic rock","Symphonic rock","Slow rock","Big band","Chorus","Easy listening","Acoustic","Humour","Speech","Chanson","Opera","Chamber music","Sonata","Symphony","Booty bass","Primus","Porn groove","Satire","Slow jam","Club","Tango","Samba","Folklore","Ballad","Power ballad","Rhythmic Soul","Freestyle","Duet","Punk rock","Drum solo","A cappella","Euro-house","Dance hall","Goa music","Drum & bass","Club-house","Hardcore techno","Terror","Indie","Britpop","Negerpunk","Polsk punk","Beat","Christian gangsta rap","Heavy metal","Black metal","Crossover","Contemporary Christian","Christian rock","Merengue","Salsa","Thrash metal","Anime","Jpop","Synthpop","Christmas","Art rock","Baroque","Bhangra","Big beat","Breakbeat","Chillout","Downtempo","Dub","EBM","Eclectic","Electro","Electroclash","Emo","Experimental","Garage","Global","IDM","Illbient","Industro-Goth","Jam Band","Krautrock","Leftfield","Lounge","Math rock","New romantic","Nu-breakz","Post-punk","Post-rock","Psytrance","Shoegaze","Space rock","Trop rock","World music","Neoclassical","Audiobook","Audio theatre","Neue Deutsche Welle","Podcast","Indie rock","G-Funk","Dubstep","Garage rock","Psybient"],Bc=(e,t)=>{var i;const r=e.filePos;t.raw??(t.raw={}),(i=t.raw).TAG??(i.TAG=rc(e,Ic-3)),e.filePos=r;const a=Ec(e,30);a&&(t.title??(t.title=a));const s=Ec(e,30);s&&(t.artist??(t.artist=s));const n=Ec(e,30);n&&(t.album??(t.album=n));const o=Ec(e,4),c=Number.parseInt(o,10);Number.isInteger(c)&&c>0&&(t.date??(t.date=new Date(String(c))));const l=rc(e,30);let u;if(0===l[28]&&0!==l[29]){const i=l[29];i>0&&(t.trackNumber??(t.trackNumber=i)),e.skip(-30),u=Ec(e,28),e.skip(2)}else e.skip(-30),u=Ec(e,30);u&&(t.comment??(t.comment=u));const h=ac(e);h<Cc.length&&(t.genre??(t.genre=Cc[h]))},Ec=(e,t)=>{const i=rc(e,t),r=$e(i.indexOf(0),i.length),a=i.subarray(0,r);let s="";for(let n=0;n<a.length;n++)s+=String.fromCharCode(a[n]);return s.trimEnd()},_c=e=>{const t=e.filePos,i=bc(e,3),r=ac(e),a=ac(e),s=ac(e),n=uc(e);if("ID3"!==i||255===r||255===a||0!==(2155905152&n))return e.filePos=t,null;let o=Ji(n);return s&Tc.Footer&&(o+=xc),{majorVersion:r,revision:a,flags:s,size:o}},Rc=(e,t,i)=>{var r,a,s,n,o;if(![2,3,4].includes(t.majorVersion))return void ct._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Tc.Footer?t.size-xc:t.size,l=rc(e,c),u=new Fc(t,l);if(t.flags&Tc.Unsynchronisation&&3===t.majorVersion&&u.ununsynchronizeAll(),t.flags&Tc.ExtendedHeader){const e=u.readU32();3===t.majorVersion?u.pos+=e:u.pos+=e-4}for(;u.pos<=u.bytes.length-u.frameHeaderSize();){const e=u.readId3V2Frame();if(!e)break;const c=u.pos,l=u.pos+e.size;let h=!1,d=!1,f=!1;if(3===t.majorVersion?(h=!!(64&e.flags),d=!!(128&e.flags)):4===t.majorVersion&&(h=!!(4&e.flags),d=!!(8&e.flags),f=!!(2&e.flags)||!!(t.flags&Tc.Unsynchronisation)),h)ct._warn(`Skipping encrypted ID3v2 frame ${e.id}`),u.pos=l;else if(d)ct._warn(`Skipping compressed ID3v2 frame ${e.id}`),u.pos=l;else{if(f&&u.ununsynchronizeRegion(u.pos,l),i.raw??(i.raw={}),"TXXX"===e.id){const e=(r=i.raw).TXXX??(r.TXXX={}),t=u.readId3V2TextEncoding(),a=u.readId3V2Text(t,l),s=u.readId3V2Text(t,l);e[a]??(e[a]=s)}else"T"===e.id[0]?(a=i.raw)[s=e.id]??(a[s]=u.readId3V2EncodingAndText(l)):(n=i.raw)[o=e.id]??(n[o]=u.readBytes(e.size));switch(u.pos=c,e.id){case"TIT2":case"TT2":i.title??(i.title=u.readId3V2EncodingAndText(l));break;case"TIT3":case"TT3":i.description??(i.description=u.readId3V2EncodingAndText(l));break;case"TPE1":case"TP1":i.artist??(i.artist=u.readId3V2EncodingAndText(l));break;case"TALB":case"TAL":i.album??(i.album=u.readId3V2EncodingAndText(l));break;case"TPE2":case"TP2":i.albumArtist??(i.albumArtist=u.readId3V2EncodingAndText(l));break;case"TRCK":case"TRK":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.trackNumber??(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.tracksTotal??(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.discNumber??(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.discsTotal??(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=u.readId3V2EncodingAndText(l);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==Cc[e]){i.genre??(i.genre=Cc[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==Cc[e]){i.genre??(i.genre=Cc[e]);break}}i.genre??(i.genre=e)}break;case"TDRC":case"TDAT":{const e=u.readId3V2EncodingAndText(l),t=new Date(e);Number.isNaN(t.getTime())||(i.date??(i.date=t))}break;case"TYER":case"TYE":{const e=u.readId3V2EncodingAndText(l),t=Number.parseInt(e,10);Number.isInteger(t)&&(i.date??(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.lyrics??(i.lyrics=u.readId3V2Text(e,l))}break;case"COMM":case"COM":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.comment??(i.comment=u.readId3V2Text(e,l))}break;case"APIC":case"PIC":{const e=u.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=u.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=u.readId3V2Text(e,l);const a=u.readU8(),s=u.readId3V2Text(e,l).trimEnd(),n=l-u.pos;if(n>=0){const e=u.readBytes(n);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===a?"coverFront":4===a?"coverBack":"unknown",description:s})}}break;default:u.pos+=e.size}u.pos=l}}};class Fc{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 2===this.header.majorVersion?6:10}ununsynchronizeAll(){const e=[];for(let t=0;t<this.bytes.length;t++){const i=this.bytes[t];if(e.push(i),255===i&&t!==this.bytes.length-1){0===this.bytes[t]&&t++}}this.bytes=new Uint8Array(e),this.view=new DataView(this.bytes.buffer)}ununsynchronizeRegion(e,t){const i=[];for(let s=e;s<t;s++){const e=this.bytes[s];if(i.push(e),255===e&&s!==t-1){0===this.bytes[s+1]&&s++}}const r=this.bytes.subarray(0,e),a=this.bytes.subarray(t);this.bytes=new Uint8Array(r.length+i.length+a.length),this.bytes.set(r,0),this.bytes.set(i,r.length),this.bytes.set(a,r.length+i.length),this.view=new DataView(this.bytes.buffer)}readBytes(e){const t=this.bytes.subarray(this.pos,this.pos+e);return this.pos+=e,t}readU8(){const e=this.view.getUint8(this.pos);return this.pos+=1,e}readU16(){const e=this.view.getUint16(this.pos,!1);return this.pos+=2,e}readU24(){const e=this.view.getUint16(this.pos,!1),t=this.view.getUint8(this.pos+2);return this.pos+=3,256*e+t}readU32(){const e=this.view.getUint32(this.pos,!1);return this.pos+=4,e}readAscii(e){let t="";for(let i=0;i<e;i++)t+=String.fromCharCode(this.view.getUint8(this.pos+i));return this.pos+=e,t}readId3V2Frame(){if(2===this.header.majorVersion){const e=this.readAscii(3);if("\0\0\0"===e)return null;return{id:e,size:this.readU24(),flags:0}}{const e=this.readAscii(4);if("\0\0\0\0"===e)return null;const t=this.readU32();let i=4===this.header.majorVersion?Ji(t):t;const r=this.readU16(),a=this.pos,s=e=>{const t=this.pos+e;if(t>this.bytes.length)return!1;if(t<=this.bytes.length-this.frameHeaderSize()){this.pos+=e;const t=this.readAscii(4);if("\0\0\0\0"!==t&&!/[0-9A-Z]{4}/.test(t))return!1}return!0};if(!s(i)){const e=4===this.header.majorVersion?t:Ji(t);s(e)&&(i=e)}return this.pos=a,{id:e,size:i,flags:r}}}readId3V2TextEncoding(){const e=this.readU8();if(e>3)throw new Error(`Unsupported text encoding: ${e}`);return e}readId3V2Text(e,t){const i=this.pos,r=this.readBytes(t-this.pos);switch(e){case vc.ISO_8859_1:{let e="";for(let t=0;t<r.length;t++){const a=r[t];if(0===a){this.pos=i+t+1;break}e+=String.fromCharCode(a)}return e}case vc.UTF_16_WITH_BOM:if(255===r[0]&&254===r[1]){const e=new TextDecoder("utf-16le"),t=$e(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}if(254===r[0]&&255===r[1]){const e=new TextDecoder("utf-16be"),t=$e(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}{const e=$e(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),Z.decode(r.subarray(0,e))}case vc.UTF_16_BE_NO_BOM:{const e=new TextDecoder("utf-16be"),t=$e(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(0,t))}case vc.UTF_8:{const e=$e(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),Z.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class Ac{constructor(e){this.host=e,this.closed=!1,this.resumes=new WeakMap}ensure(e){if(this.closed)return null;if(this.host.audioContext)return this.host.audioContext;const t=window.AudioContext||window.webkitAudioContext;let i;try{i=new t({sampleRate:e})}catch{i=new t}if(this.closed)return i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null;let r=null;try{r=i.createGain(),r.connect(i.destination);const e=this.host.muted?0:this.host.volume;return r.gain.value=e*e,this.closed?(r.disconnect(),i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null):(this.host.audioContext=i,this.host.gainNode=r,i)}catch(a){try{r?.disconnect()}catch(s){console.warn("MediaBunny gain setup cleanup:",s)}throw i.close().catch(e=>console.warn("MediaBunny context setup cleanup:",e)),a}}updateGain(){if(!this.host.gainNode)return;const e=this.host.muted?0:this.host.volume;this.host.gainNode.gain.value=e*e}resume(e){const t=this.resumes.get(e);if(t)return t;const i=e.resume();this.resumes.set(e,i);const r=()=>{this.resumes.get(e)===i&&this.resumes.delete(e)};return i.then(r,r),i}destroy(){if(this.closed)return;this.closed=!0;const{audioContext:e,gainNode:t}=this.host;this.host.audioContext=null,this.host.gainNode=null;try{t?.disconnect()}finally{e&&e.close().catch(e=>console.warn("MediaBunny context close error:",e))}}}class Mc{constructor(e){this.host=e}release(e,t){this.host.queuedNodes.delete(e),e.onended=null;let i,r=!1;try{t&&e.stop()}catch(a){r=!0,i=a}try{e.disconnect()}catch(a){r||(r=!0,i=a)}if(r)throw i}stop(){const e=[];for(const i of[...this.host.queuedNodes])try{this.release(i,!0)}catch(t){e.push(t)}if(e.length)throw e[0]}schedule({buffer:e,timestamp:t}){const i=this.host.audioContext,r=this.host.gainNode;if(!i||!r)return;const a=function(e,t,i,r){const a=e.audioContextStartTime+(t-e.playbackTimeAtStart)/e.playbackRate,s=(a+i/e.playbackRate-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;return{startAt:Math.max(a,r),offset:a<r?(r-a)*e.playbackRate:null,endMediaTime:s}}(this.host,t,e.duration,i.currentTime);if(null!==a.offset&&a.offset>=e.duration)return;const s=i.createBufferSource();this.host.queuedNodes.add(s);try{s.buffer=e,s.connect(r),s.playbackRate.value=this.host.playbackRate,s.onended=()=>{if(this.host.queuedNodes.has(s))try{this.release(s,!1)}catch(e){console.warn("MediaBunny ended node cleanup:",e)}},null===a.offset?s.start(a.startAt):s.start(a.startAt,a.offset),this.host.latestScheduledEndTime=Math.max(this.host.latestScheduledEndTime,a.endMediaTime)}catch(n){try{this.release(s,!0)}catch(o){console.warn("MediaBunny audio node cleanup:",o)}throw n}}}const Dc=Symbol("cancelled");class Nc{constructor(){this.cancelled=!1,this.waits=new Set,this.timers=new Map}wait(e){return new Promise((t,i)=>{const r=()=>t(Dc);this.cancelled?r():this.waits.add(r),e.then(e=>{this.waits.delete(r),t(e)},e=>{this.waits.delete(r),i(e)})})}delay(e){return this.cancelled?Promise.resolve(!1):new Promise(t=>{const i=setTimeout(()=>{this.timers.delete(i),t(!this.cancelled)},e);this.timers.set(i,t)})}cancel(){if(!this.cancelled){this.cancelled=!0;for(const e of this.waits)e();this.waits.clear();for(const[e,t]of this.timers)clearTimeout(e),t(!1);this.timers.clear()}}}function Oc(e){if(!e.audio.audioSink&&!e.video.videoSink)throw e.readyState=0,new Error("Input has no decodable audio or video tracks.")}function Lc(e,t,i){for(const r of i){if(!t())return;e.emit(r)}}class zc{constructor(e,t,i){this.host=e,this.contexts=t,this.nodes=i,this.task=null,this.closing=new WeakMap}async stopIterator(){const e=this.host.audioIterator;if(this.host.audioIterator=null,!e)return;let t=this.closing.get(e);t||(t=Promise.resolve().then(()=>e.return()).then(()=>{}),this.closing.set(e,t)),await t}cancel(){this.task?.cancel(),this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e))}async run(e){if(this.host.asyncId!==e)return;this.cancel();const t=this.host.audioSink,i=this.host.audioContext;if(!t||!i||this.host.paused||this.host.asyncId!==e)return;const r=new Nc;this.task=r;let a=null;const s=()=>!r.cancelled&&this.task===r&&this.host.asyncId===e&&!this.host.paused&&this.host.audioContext===i&&(!a||this.host.audioIterator===a);try{for(a=t.buffers(this.host.currentTime),this.host.audioIterator=a;s();){const e=[];let t=!1;for(let i=0;i<16;i++){const i=await r.wait(a.next());if(i===Dc||!s())return;if(i.done){t=!0;break}e.push(i.value)}if(e.length&&"suspended"===i.state){if(await r.wait(this.contexts.resume(i))===Dc||!s())return;Lc(this.host.events,s,["canplay","playing"])}for(const i of e){if(!s())return;this.nodes.schedule(i)}if(t)return;if(!(await r.delay(0))||!s())return;for(;this.host.latestScheduledEndTime-this.host.currentTime>1;)if(!(await r.delay(50))||!s())return}}catch(n){if(s())throw n}finally{r.cancel(),this.task===r&&(this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e)))}}}class Uc{constructor(e,h){N(this,u),N(this,t,!1),N(this,i,0),N(this,r),N(this,a),N(this,s),N(this,n,null),N(this,o,null),N(this,c,null),N(this,l),this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set,O(this,r,new Ac(this)),O(this,a,new Mc(this)),O(this,s,new zc(this,D(this,r),D(this,a))),O(this,l,h)}get currentTime(){return(e=this).paused||!e.audioContext?e.playbackTimeAtStart:(e.audioContext.currentTime-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;var e}ensureAudioContext(e){D(this,r).ensure(e)}updateGain(){D(this,r).updateGain()}stopQueuedNodes(){D(this,a).stop()}async stopIterator(){await D(this,s).stopIterator()}handleNoAudioTrack(){D(this,t)||(this.audioSink=null,this.ensureAudioContext())}cancelPending(){z(this,i)._++;try{this.pause()}finally{O(this,c,null),this.input=null,this.audioSink=null}}async load(e,r){if(D(this,t))return;this.cancelPending();const a=D(this,i);this.playbackTimeAtStart=0,this.audioContextStartTime=0,this.latestScheduledEndTime=0;const s=Promise.resolve().then(()=>L(this,u,h).call(this,e,a,r));O(this,c,s);try{await s}finally{D(this,c)===s&&O(this,c,null)}}async runIterator(e){D(this,t)||await D(this,s).run(e)}async play(){if(D(this,t))return;if(D(this,o))return D(this,o);if(!this.paused)return;const e=new Nc;O(this,n,e);const r=D(this,i),a=L(this,u,f).call(this,e,r);O(this,o,a);try{await a}finally{D(this,n)===e&&(O(this,n,null),O(this,o,null))}}pause(){this.paused||(this.playbackTimeAtStart=this.currentTime),this.paused=!0,this.asyncId++,D(this,n)?.cancel(),O(this,n,null),O(this,o,null),D(this,s).cancel(),this.stopQueuedNodes()}async seek(e){if(D(this,t))return;const i=!this.paused;D(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=this.audioContext?.currentTime??0,this.latestScheduledEndTime=this.playbackTimeAtStart;const r=++this.asyncId;i&&L(this,u,d).call(this,r)}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){if(D(this,t)||e===this.playbackRate)return;const i=this.currentTime;D(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=i,this.audioContextStartTime=this.audioContext?.currentTime??0,this.playbackRate=e,this.latestScheduledEndTime=i;const r=++this.asyncId;this.paused||L(this,u,d).call(this,r)}destroy(){if(D(this,t))return;O(this,t,!0),z(this,i)._++;const e=[];for(const t of[()=>this.pause(),()=>D(this,r).destroy()])try{t()}catch(a){e.push(a)}if(this.input=null,this.audioSink=null,O(this,c,null),e.length)throw e[0]}}t=new WeakMap,i=new WeakMap,r=new WeakMap,a=new WeakMap,s=new WeakMap,n=new WeakMap,o=new WeakMap,c=new WeakMap,l=new WeakMap,u=new WeakSet,h=async function({input:e,audioTrack:r,duration:a},s,n){const o=()=>!D(this,t)&&D(this,i)===s;if(o()){this.input=e,this.duration=a;try{const e=r&&null!==r.codec&&await r.canDecode();if(!o())return;if(e){if(this.ensureAudioContext(r.sampleRate),!o())return;this.audioSink=new No(r)}else this.handleNoAudioTrack();o()&&n?.()}catch(c){if(o())throw c}}},d=function(e){this.runIterator(e).catch(i=>{if(!D(this,t)&&e===this.asyncId){try{this.pause()}catch(r){console.warn("MediaBunny audio failure cleanup:",r)}try{D(this,l)?D(this,l).call(this,i):this.events.emit("error",i)}catch(r){console.warn("MediaBunny audio error listener:",r)}}})},f=async function(e,a){const s=()=>!D(this,t)&&!e.cancelled&&D(this,i)===a;try{const t=D(this,r).ensure();if(!t||!s())return;if("suspended"===t.state){if(await e.wait(D(this,r).resume(t))===Dc||!s())return}if(D(this,c)){if(await e.wait(D(this,c))===Dc||!s())return}this.audioContextStartTime=t.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1,L(this,u,d).call(this,++this.asyncId)}catch(n){if(s())throw n}};const qc=new WeakMap;async function Wc(e,t,i){const{input:r,loadSeq:a}=e;if(!e.media?.isHls||!r||e.destroyed)return;const s={};qc.set(e,s);const n=()=>!e.destroyed&&e.loadSeq===a&&e.input===r&&qc.get(e)===s;for(;n();){const a=e.media;if(!a?.isHls)return;let s;try{s=await i(r,a,t,n)}catch(o){if(!n())return;if(e.media===a)throw o;continue}if(!n())return;if(e.media===a){if(s)try{await e.replaceTracks(s)}catch(o){if(n())throw o}return}}}async function Hc(e,t,i,r){const a=await e.getVideoTracks();if(!r())return null;const s="auto"===i?await e.getPrimaryVideoTrack():a.find(e=>e.id===i)??t.videoTrack;if(!r()||!s)return null;let n=t.audioTrack,o=t.audioMode;return n&&s.canBePairedWith(n)||(n=await s.getPrimaryPairableAudioTrack(),o="auto"),{videoTrack:s,audioTrack:n,videoMode:"auto"===i?"auto":"manual",audioMode:o}}async function Vc(e,t,i,r){const a=await e.getAudioTracks();if(!r())return null;const s="auto"===i?t.videoTrack?await t.videoTrack.getPrimaryPairableAudioTrack():await e.getPrimaryAudioTrack():a.find(e=>e.id===i)??t.audioTrack;if(!r()||!s)return null;let n=t.videoTrack,o=t.videoMode;return n&&s.canBePairedWith(n)||(n=await s.getPrimaryPairableVideoTrack(),o="auto"),{videoTrack:n,audioTrack:s,videoMode:o,audioMode:"auto"===i?"auto":"manual"}}async function jc(e){return await e.getAverageBitrate()??await e.getBitrate()??0}const Kc=/\.m3u8(?:$|[?#])/i;function Xc(e){return"string"===typeof e&&Kc.test(e)}function $c(e){const t=function(e){return"string"===typeof e?new Ks(e):e instanceof Blob?new Hs(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new Gs(e):e??null}(e);return t?new Yo({source:t,formats:Xc(e)?On:Nn}):null}class Gc{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){return this.controller?.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}async wait(e,t){try{await Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,e?.dispose()}cancel(){if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),this.controller?.abort(),this.disposeInput()}}}async function Qc({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),a=t||i,s=Boolean(a&&await a.isLive());let n=Number.NaN;return r.length>0&&(n=await e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==n||s||(n=await e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:n??Number.NaN}function Yc(){let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}}class Jc{constructor(e){this.host=e,this.wanted=!1,this.playing=null,this.seeking=null}operation(){return{...Yc(),source:this.host.loadSeq,complete:Yc()}}current(e,t){return!this.host.destroyed&&e.source===this.host.loadSeq&&this[t]===e}cancelPlay(){const e=this.playing;this.playing=null,e?.resolve()}invalidate(){this.cancelPlay(),this.wanted=!1;const e=this.seeking;this.seeking=null,e?.complete.resolve(),e?.resolve(),this.host.seeking=!1}ended(){this.wanted=!1,this.cancelPlay()}stop(){this.host.paused||(this.host.paused=!0,this.stopEngines(),this.host.events.emit("pause"))}stopEngines(){const e=[];for(const i of[()=>this.host.audio.pause(),()=>this.host.video.stop()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}pause(){this.wanted=!1,this.cancelPlay(),this.stop()}play(){if(this.host.destroyed)return Promise.resolve();if(this.wanted=!0,this.playing)return this.playing.promise;if(this.host.ended)return this.seek(0,!0);if(!this.host.paused&&!this.seeking)return Promise.resolve();const e=this.operation();return this.playing=e,this.runPlay(e).then(e.resolve,e.reject),e.promise}async runPlay(e){const t=()=>this.current(e,"playing")&&this.wanted;try{for(;this.seeking;)if(await this.seeking.complete.promise,!t())return;if(!t())return;if(this.host.paused=!1,await this.host.audio.play(),!t())return void(this.wanted&&!this.host.destroyed||this.host.audio.pause());this.host.video.start(this.host.audio),Lc(this.host.events,t,["play","playing"])}catch(i){if(!t())return;this.wanted=!1,this.host.paused=!0;try{this.stopEngines()}catch(r){console.warn("MediaBunny play cleanup error:",r)}throw i}finally{this.playing===e&&(this.playing=null)}}seek(e,t){return this.position(async t=>{const i=this.host.audio.seek(e),r=t()?this.host.video.seek(e):Promise.resolve();await Promise.all([i,r])},["seeked"],!1,t)}replace(e,t){return this.position(async i=>{e.duration=await Qc(e),i()&&(this.host.media=e,await Promise.all([this.host.video.load(e),this.host.audio.load(e)]),i()&&(Oc(this.host),await Promise.all([this.host.video.seek(t),this.host.audio.seek(t)]),i()&&(this.host.readyState=4,this.host.networkState=1)))},["loadedmetadata","durationchange","progress","loadeddata","canplay","canplaythrough","seeked"],!0)}position(e,t,i,r){if(this.host.destroyed)return Promise.resolve();this.wanted=r??(this.seeking?this.wanted:!this.host.paused),this.cancelPlay();const a=this.seeking,s=this.operation();return this.seeking=s,a?.complete.resolve(),a?.resolve(),this.runPosition(s,e,t,i).then(s.resolve,s.reject),s.promise}async runPosition(e,t,i,r){const a=()=>this.current(e,"seeking");let s=!1;try{if(r&&this.stop(),!a())return;if(this.host.ended=!1,this.host.seeking=!0,Lc(this.host.events,a,["seeking","waiting"]),!a())return;if(r||this.stop(),!a())return;if(await t(a),!a())return;if(this.host.seeking=!1,e.complete.resolve(),Lc(this.host.events,a,i),!a())return;this.seeking=null,s=this.wanted}catch(n){if(!a())return;throw this.host.seeking=!1,this.wanted=!1,this.cancelPlay(),this.host.reportError(n),n}finally{e.complete.resolve(),this.seeking===e&&(this.seeking=null)}s&&await this.play()}}const Zc=new WeakMap,el=new WeakMap;function tl(e){const t=el.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.next()).then(e=>e.value??null);el.set(e,i);const r=()=>{el.get(e)===i&&el.delete(e)};return i.then(r,r),i}function il(e,t,i,r,a){const s=i?Math.max(.06,r/Math.max(1,a)):0;return i&&e<t-s?"skip":e<=t+s?"draw":"queue"}class rl{constructor(){this.image=null}cancel(){this.image&&(this.image.onload=null,this.image.onerror=null,this.image=null)}draw(e,t,i,r){this.cancel();const a=new Image;this.image=a,a.onload=()=>{if(this.image===a&&t()){this.cancel();try{i(a)}catch(e){r(e)}}},a.onerror=()=>{this.image===a&&this.cancel()},a.src=e}}class al{constructor(e,t,i,r){this.host=e,this.ready=t,this.draw=i,this.failure=r,this.stopped=!1,this.closed=!1,this.scheduled=null,this.fetching=null}current(e){return!this.closed&&!this.stopped&&this.host.asyncId===e}async update(e){const t=this.host.videoIterator;if(!t||!this.ready()||!this.current(e)||this.host.isFetching)return;const i={};this.fetching=i,this.host.isFetching=!0;const r=()=>this.current(e)&&this.host.videoIterator===t;try{for(;r();){const e=await tl(t);if(!r()||!e)return;const i=this.host.audioClock?.currentTime;if(void 0===i)return;const a=il(e.timestamp,i,this.host.dropLateFrames,this.host.avSyncTolerance,this.host.playbackRate);if("skip"!==a){if("draw"!==a)return void(this.host.nextFrame=e);this.draw(e)}}}catch(a){if(r())throw a}finally{this.fetching===i&&(this.fetching=null,this.host.isFetching=!1)}}request(e){this.update(e).catch(t=>{this.current(e)&&(this.stop(),this.report(t))})}report(e){try{this.failure(e)}catch(t){console.warn("MediaBunny video error listener:",t)}}cancelFrame(){null!==this.scheduled&&(cancelAnimationFrame(this.scheduled),this.scheduled=null)}schedule(e){if(!this.current(e))return;this.cancelFrame();const t=requestAnimationFrame(()=>{if(this.scheduled===t&&this.current(e)){this.scheduled=null;try{this.render()}catch(i){this.stop(),this.report(i)}}});this.scheduled=t,this.host.rafId=t}render(){const e=this.host.asyncId,t=()=>this.current(e);if(!t()||!this.host.audioClock)return;const i=this.host.audioClock.currentTime,r=Date.now();if(r-this.host.lastTimeUpdate>=this.host.timeupdateInterval){if(this.host.events.emit("timeupdate"),!t())return;this.host.lastTimeUpdate=r}if(this.ready()){if(Number.isFinite(this.host.duration)&&i>=this.host.duration){this.stop(),this.host.stalled=!1;const e=this.host.asyncId;return void Lc(this.host.events,()=>!this.closed&&this.host.asyncId===e,["ended","pause","canplay"])}if(this.host.nextFrame&&this.host.nextFrame.timestamp<=i){if(this.draw(this.host.nextFrame),this.host.nextFrame=null,this.request(e),this.host.stalled){if(Lc(this.host.events,t,["canplay","playing"]),!t())return;this.host.stalled=!1}}else this.host.nextFrame||(this.request(e),Number.isFinite(this.host.duration)&&i<this.host.duration&&!this.host.stalled&&(this.host.stalled=!0,this.host.events.emit("waiting")));this.schedule(e)}else this.schedule(e)}start(e){this.closed||(this.stop(),this.stopped=!1,this.host.audioClock=e,this.host.stalled=!1,this.host.nextFrame||this.request(this.host.asyncId),this.schedule(this.host.asyncId))}stop(){this.stopped=!0,this.host.asyncId++,this.cancelFrame(),this.fetching=null,this.host.isFetching=!1}destroy(){this.closed||(this.stop(),this.closed=!0)}}class sl{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:a=.12,dropLateFrames:s=!1,poster:n="",preflightRange:o=!1,onError:c}){N(this,P),N(this,m,0),N(this,p,0),N(this,g,null),N(this,k,null),N(this,y,null),N(this,b,!1),N(this,w,!1),N(this,T,new rl),N(this,S),N(this,v),this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=a,this.dropLateFrames=s,this.poster=n,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1,O(this,v,c),O(this,S,new al(this,()=>!D(this,w),e=>L(this,P,E).call(this,e,!0),e=>L(this,P,C).call(this,e)))}async preflight(e,t,i){return async function(e,t,i,r,a=()=>!0){if(r?.aborted||!a())return!1;if(!t||"string"!==typeof e||Xc(e))return!0;try{const t=await fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if(r?.aborted||!a())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!(r?.aborted||!a())&&(console.warn("Preflight check failed:",s),!0)}}(e,this.preflightRange,this.events,t,i)}drawPoster(){if(D(this,b)||!this.poster||this.posterDrawn)return;const e=D(this,m);D(this,T).draw(this.poster,()=>L(this,P,I).call(this,e),e=>{this.clear(),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,L(this,P,x).call(this).drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e=>L(this,P,C).call(this,e))}async stopIterator(){const e=this.videoIterator;this.videoIterator=null,this.nextFrame=null,await function(e){if(!e)return Promise.resolve();const t=Zc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.return()).then(()=>{});return Zc.set(e,i),i}(e)}clear(){L(this,P,x).call(this).clearRect(0,0,this.canvas.width,this.canvas.height)}cancelPending(){z(this,m)._++,z(this,p)._++,this.stop(),L(this,P,B).call(this),D(this,T).cancel(),O(this,w,!1),O(this,g,null),O(this,k,null),O(this,y,null),this.videoSink=null,this.input=null}async load(e,t){if(D(this,b))return;this.cancelPending();const i=D(this,m),r=D(this,p);O(this,w,!0);const a=Promise.resolve().then(()=>L(this,P,_).call(this,e,i,r,t));O(this,g,a);try{await a}finally{D(this,g)===a&&O(this,g,null)}}handleNoVideoTrack(){D(this,b)||(this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster())}async resetIterator(e){if(D(this,b))return;const t=D(this,m),i=++z(this,p)._,r=D(this,g);this.stop(),D(this,T).cancel(),O(this,w,!0);try{r&&await r,await L(this,P,R).call(this,e,t,i)}catch(a){if(L(this,P,I).call(this,t)&&D(this,p)===i)throw L(this,P,B).call(this),a}finally{L(this,P,I).call(this,t)&&D(this,p)===i&&O(this,w,!1)}}async updateNextFrame(e){await D(this,S).update(e)}render(){D(this,S).render()}start(e){D(this,S).start(e)}stop(){D(this,S).stop()}async seek(e){await this.resetIterator(e)}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){D(this,b)||(O(this,b,!0),z(this,m)._++,D(this,S).destroy(),D(this,T).cancel(),L(this,P,B).call(this),this.posterDrawn=!1,O(this,k,null),O(this,y,null),this.videoSink=null,this.input=null,this.audioClock=null)}}m=new WeakMap,p=new WeakMap,g=new WeakMap,k=new WeakMap,y=new WeakMap,b=new WeakMap,w=new WeakMap,T=new WeakMap,S=new WeakMap,v=new WeakMap,P=new WeakSet,I=function(e){return!D(this,b)&&D(this,m)===e},x=function(){if(!this.ctx)throw new Error("Canvas 2D context is unavailable.");return this.ctx},C=function(e){D(this,b)||(L(this,P,B).call(this),D(this,v)?D(this,v).call(this,e):this.events.emit("error",e))},B=function(){this.stopIterator().catch(e=>console.warn("MediaBunny iterator cleanup error:",e))},E=function(e,t){D(this,T).cancel(),t&&this.clear(),L(this,P,x).call(this).drawImage(e.canvas,0,0)},_=async function(e,t,i,r){if(L(this,P,I).call(this,t))try{this.clear(),this.posterDrawn=!1;const{input:a,videoTrack:s,duration:n}=e;if(this.input=a,this.duration=n,!s)return this.handleNoVideoTrack(),void r?.();const o=null!==s.codec&&await s.canDecode();if(!L(this,P,I).call(this,t))return;if(!o)return this.handleNoVideoTrack(),void r?.();const c=await s.canBeTransparent();if(!L(this,P,I).call(this,t))return;O(this,k,()=>new Fo(s,{poolSize:2,fit:"contain",alpha:c})),this.videoSink=D(this,k).call(this),this.width=s.displayWidth,this.height=s.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,r?.(),L(this,P,I).call(this,t)&&await L(this,P,R).call(this,0,t,i)}catch(a){if(L(this,P,I).call(this,t))throw L(this,P,B).call(this),a}finally{L(this,P,I).call(this,t)&&D(this,p)===i&&O(this,w,!1)}},R=async function(e,t,i){if(!L(this,P,I).call(this,t)||D(this,p)!==i)return;L(this,P,B).call(this),D(this,k)&&this.videoSink===D(this,y)&&(this.videoSink=D(this,k).call(this));const r=this.videoSink;if(!r||!L(this,P,I).call(this,t))return;O(this,y,r);const a=r.canvases(e);this.videoIterator=a;const s=()=>L(this,P,I).call(this,t)&&D(this,p)===i&&this.videoIterator===a,n=await tl(a);if(!s())return;const o=await tl(a);s()&&(this.nextFrame=o,n?L(this,P,E).call(this,n,!1):this.drawPoster())};class nl{constructor({canvas:e,ctx:t,events:i,option:r={}}){N(this,F),this.events=i,this.option=r,this.audio=new Uc(i,e=>{try{this.pause()}catch(t){console.warn("MediaBunny audio coordinator cleanup:",t)}this.reportError(e)}),this.video=new sl({canvas:e,ctx:t,events:i,timeupdateInterval:r.timeupdateInterval??250,avSyncTolerance:r.avSyncTolerance??.12,dropLateFrames:r.dropLateFrames??!1,poster:r.poster??"",preflightRange:r.preflightRange??!1,onError:e=>{try{this.pause()}catch(t){console.warn("MediaBunny video failure cleanup:",t)}this.reportError(e)}}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,O(this,F,new Jc(this)),i.addEventListener("ended",()=>{this.destroyed||(this.ended=!0,this.paused=!0,D(this,F).ended(),this.audio.pause())})}async load(e){if(this.destroyed)return;const t=++this.loadSeq;if(D(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),this.loadSession?.cancel(),t!==this.loadSeq||this.destroyed)return;if(this.pause(),t!==this.loadSeq||this.destroyed)return;this.disposeInput();const i=new Gc;this.loadSession=i,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,i.defer(()=>this.events.emit("waiting")),i.defer(()=>this.events.emit("loadstart"));const r=Number.isFinite(this.option.loadTimeout)?this.option.loadTimeout??0:0;try{await i.wait(this.performLoad(e,t,i),r)}catch(a){if(t!==this.loadSeq)return;const e=++this.loadSeq;if(D(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),i.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.reportError(a)}}async performLoad(e,t,i=this.loadSession){const r=()=>!this.destroyed&&t===this.loadSeq;if(!i||!(await this.video.preflight(e,i.signal,r))||!r())return;const a=$c(e);if(!a)return this.video.handleNoVideoTrack(),void(r()&&this.audio.handleNoAudioTrack());i.own(a);const s=await async function(e,t){const i=await e.getPrimaryVideoTrack(),r=i?await i.getPrimaryPairableAudioTrack():await e.getPrimaryAudioTrack(),a=await Qc({input:e,videoTrack:i,audioTrack:r}),s=i||r,n=Xc(t);return{input:e,videoTrack:i,audioTrack:r,duration:a,isLive:!Number.isFinite(a)&&Boolean(s&&await s.isLive()),isHls:n,videoMode:n?"auto":"manual",audioMode:n?"auto":"manual"}}(a,e);if(!r())return;if(!s.videoTrack&&!s.audioTrack)throw this.video.handleNoVideoTrack(),this.video.duration=Number.NaN,this.audio.duration=Number.NaN,new Error("Input has no audio or video tracks.");this.input=a,this.media=s;const n=function(e,t){let i=!1,r=!1,a=!1;function s(s){t()&&!a&&("video"===s?i=!0:r=!0,i&&r&&(a=!0,e()))}return{video:()=>s("video"),audio:()=>s("audio")}}(()=>{Oc(this),this.readyState=1,Lc(this.events,r,["loadedmetadata","durationchange","progress"])},r);try{const e=this.video.load(s,n.video),t=r()?this.audio.load(s,n.audio):Promise.resolve();if(await Promise.all([e,t]),!r())return;Oc(this),this.readyState=4,this.networkState=1,Lc(this.events,r,["loadeddata","canplay","canplaythrough","progress"])}catch(o){if(!r())return;throw console.error("MediaBunny load error:",o),o}}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){this.loadSession?.disposeInput(),this.input=null,this.media=null}async replaceTracks(e){if(this.media&&!this.destroyed)return D(this,F).replace({...this.media,...e},this.currentTime)}async selectHlsQuality(e){return function(e,t){return Wc(e,t,Hc)}(this,e)}async selectHlsAudio(e){return function(e,t){return Wc(e,t,Vc)}(this,e)}async getHlsState(){const e=this.media,t=this.loadSeq;if(this.destroyed)return null;try{const i=await async function(e){if(!e?.isHls||!e.input)return null;const[t,i]=await Promise.all([e.input.getVideoTracks(),e.videoTrack?e.videoTrack.getPairableAudioTracks():[]]),[r,a]=await Promise.all([Promise.all(t.map(async(e,t)=>({id:e.id,track:e,index:t,name:await e.getName(),height:await e.getDisplayHeight(),bitrate:await jc(e)}))),Promise.all(i.map(async(e,t)=>{const i=await e.getName(),r=await e.getLanguageCode();return{id:e.id,track:e,index:t,name:i,lang:r,language:r,bitrate:await jc(e)}}))]);return{levels:r,audios:a,currentLevel:e.videoTrack?r.find(t=>t.id===e.videoTrack?.id)??null:null,currentAudio:e.audioTrack?a.find(t=>t.id===e.audioTrack?.id)??null:null,videoMode:e.videoMode??"auto",audioMode:e.audioMode??"auto"}}(e);return this.destroyed||this.loadSeq!==t||this.media!==e?null:i}catch(i){if(this.destroyed||this.loadSeq!==t||this.media!==e)return null;throw i}}async play(){return D(this,F).play()}pause(){D(this,F).pause()}async seek(e){return D(this,F).seek(e)}setVolume(e,t){this.audio.setVolume(e,t)}setPlaybackRate(e){this.audio.setPlaybackRate(e),this.video.setPlaybackRate(e)}reportError(e){if(this.destroyed)return;const t=e&&"object"===typeof e?Reflect.get(e,"message"):void 0;this.error={code:4,message:"string"===typeof t?t:String(e)},this.networkState=3,this.events.emit("error")}destroy(){if(this.destroyed)return;this.destroyed=!0,this.loadSeq++,D(this,F).invalidate();const e=[];for(const i of[()=>this.loadSession?.cancel(),()=>this.pause(),()=>this.disposeInput(),()=>this.audio.destroy(),()=>this.video.destroy()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}get currentTime(){return this.audio.currentTime}get duration(){return this.media?.duration??this.audio.duration??this.video.duration}get videoWidth(){return this.video.width}get videoHeight(){return this.video.height}}F=new WeakMap;const ol=new WeakMap;function cl(e){let t=ol.get(e);return t||(t={closed:!1,frames:new Set},ol.set(e,t)),t}class ll{constructor({art:e,canvas:t,ctx:i,option:r}){this.art=e,this.canvas=t,this.option=r,this.events=new V,this.engine=new nl({canvas:t,ctx:i,events:this.events,option:r}),this._src=null,this._volume=r.volume??.7,this._muted=!!r.muted,this._playbackRate=1,this.engine.setVolume(this._volume,this._muted),this.setupEventForwarding(),r.source?this.src=r.source:e.option?.url&&(this.src=e.option.url)}setupEventForwarding(){const{events:e}=this.art.constructor.config;e.forEach(e=>{this.events.addEventListener(e,e=>{this.art.emit(`video:${e.type}`,e)})})}addEventListener(e,t){this.events.addEventListener(e,t)}removeEventListener(e,t){this.events.removeEventListener(e,t)}get src(){return this._src}set src(e){this._src=e,e&&this.engine.load(e)}get currentSrc(){return this._src}get currentTime(){return this.engine.currentTime}set currentTime(e){Promise.resolve(this.engine.seek(Number(e)||0)).catch(()=>{})}get duration(){return this.engine.duration}get buffered(){return this.createTimeRanges(0,this.engine.duration)}get played(){return this.createTimeRanges(0,this.engine.currentTime)}get seekable(){return this.createTimeRanges(0,this.engine.duration)}createTimeRanges(e,t){return function(e,t,i){return!e||Number.isNaN(e)||i<=0?{length:0,start:()=>0,end:()=>0}:{length:1,start:()=>t,end:()=>i}}(this.engine.duration,e,t)}get paused(){return this.engine.paused}get playing(){return!this.engine.paused&&!this.engine.ended}get ended(){return this.engine.ended}get seeking(){return this.engine.seeking}get readyState(){return this.engine.readyState}get networkState(){return this.engine.networkState}get error(){return this.engine.error}get playbackRate(){return this._playbackRate}set playbackRate(e){const t=Number(e);Number.isNaN(t)||t<=0||(this._playbackRate=t,this.engine.setPlaybackRate(t),this.events.emit("ratechange"))}get volume(){return this._volume}set volume(e){var t;this._volume=(t=e,Math.max(0,Math.min(1,Number(t)||0))),this._muted=!1,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}get muted(){return this._muted}set muted(e){this._muted=!!e,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}play(){return this.engine.play()}pause(){this.engine.pause()}load(){this._src&&this.engine.load(this._src)}getM3u8State(){return this.engine.getHlsState()}switchM3u8Quality(e){return this.engine.selectHlsQuality(e)}switchM3u8Audio(e){return this.engine.selectHlsAudio(e)}get videoWidth(){return this.engine.videoWidth}get videoHeight(){return this.engine.videoHeight}get poster(){return this.option.poster||""}set poster(e){this.option.poster=e}get autoplay(){return this.option.autoplay||!1}set autoplay(e){}get loop(){return this.option.loop||!1}set loop(e){}get controls(){return!1}set controls(e){}get playsInline(){return!0}set playsInline(e){}get crossOrigin(){return this.option.crossOrigin||""}set crossOrigin(e){}get preload(){return"auto"}set preload(e){}get defaultMuted(){return!1}set defaultMuted(e){}get defaultPlaybackRate(){return 1}set defaultPlaybackRate(e){}canPlayType(e){return"maybe"}getBoundingClientRect(){return this.canvas.getBoundingClientRect()}requestVideoFrameCallback(e){return function(e,t){const i=cl(e);if(i.closed)return 0;const r=requestAnimationFrame(a=>{i.frames.delete(r),i.closed||t(a,{presentationTime:e.engine.currentTime,expectedDisplayTime:a+16.6,width:e.engine.videoWidth,height:e.engine.videoHeight,mediaTime:e.engine.currentTime,presentedFrames:0,processingDuration:0,captureTime:a,receiveTime:a,rtpTimestamp:0})});return i.frames.add(r),r}(this,e)}cancelVideoFrameCallback(e){!function(e,t){cl(e).frames.delete(t),cancelAnimationFrame(t)}(this,e)}setAttribute(e,t){"src"===e?this.src=t:"autoplay"===e?this.autoplay=t:"loop"===e?this.loop=t:"muted"===e?this.muted=!0:Reflect.apply(this.canvas.setAttribute,this.canvas,[e,t])}destroy(){if(function(e){const t=cl(e);if(t.closed)return!1;t.closed=!0;for(const i of t.frames)cancelAnimationFrame(i);return t.frames.clear(),!0}(this))try{this.engine.destroy()}finally{this.events.destroy()}}}function ul(e={}){return t=>{const i=t,{createElement:r}=i.constructor.utils,a=r("canvas"),s=new ll({art:i,canvas:a,ctx:a.getContext("2d"),option:e}),n=function(e,t,i,r){let a,s=!1;function n(){s||!e.template?.$player||e.option.autoSize||Object.assign(t.style,{width:"100%",height:"100%",objectFit:"contain"})}function o(){s||(s=!0,U([()=>a?.destroy(),()=>{e.mediabunny===i&&delete e.mediabunny},()=>i.destroy(),()=>e.off?.("resize",n),()=>e.off?.("video:loadedmetadata",n),()=>e.off?.("destroy",o)]))}return{install:function(){e.on("resize",n),e.on("video:loadedmetadata",n),a=H({art:e,shim:i,option:r}),e.on("destroy",o)},destroy:o}}(i,a,s,e);try{i.mediabunny=s,function(e,t){const i=new Map,r=e,a=t;for(const n in e)if("function"===typeof r[n]){const t=r[n];i.set(n,t.bind(e))}const s=new Set([...Object.getOwnPropertyNames(t),...Object.getOwnPropertyNames(Object.getPrototypeOf(t))]);for(const n of s)"constructor"===n||n in e||Object.defineProperty(e,n,{get(){const e=a[n];return"function"===typeof e?e.bind(t):e},set(e){a[n]=e},configurable:!0,enumerable:!0});for(const[n,o]of i)r[n]=(...e)=>o(...e)}(a,s),n.install()}catch(o){try{n.destroy()}catch(c){console.warn("MediaBunny entry setup cleanup:",c)}throw o}return a}}return Object.defineProperty(ul,"default",{value:ul,writable:!0,configurable:!0}),ul});
diff --git a/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.legacy.js b/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.legacy.js
index d8f8db571..fda5de103 100644
--- a/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.legacy.js
+++ b/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.legacy.js
@@ -4,4 +4,4 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
-!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerProxyMediabunny=t(),define(function(){return e.artplayerProxyMediabunny})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerProxyMediabunny=t()}(this,function(){"use strict";var e,t,i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F,A=Object.defineProperty,M=Object.defineProperties,D=Object.getOwnPropertyDescriptors,N=Object.getOwnPropertySymbols,O=Object.prototype.hasOwnProperty,L=Object.prototype.propertyIsEnumerable,z=(e,t)=>(t=Symbol[e])?t:Symbol.for("Symbol."+e),U=e=>{throw TypeError(e)},q=Math.pow,W=(e,t,i)=>t in e?A(e,t,{enumerable:!0,configurable:!0,writable:!0,value:i}):e[t]=i,H=(e,t)=>{for(var i in t||(t={}))O.call(t,i)&&W(e,i,t[i]);if(N)for(var i of N(t))L.call(t,i)&&W(e,i,t[i]);return e},V=(e,t)=>M(e,D(t)),j=(e,t,i)=>t.has(e)||U("Cannot "+i),K=(e,t,i)=>(j(e,t,"read from private 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t;try{const i=Vt(e),r=new Bt(i);r.skipBits(1),r.skipBits(2);if(7!==r.readBits(5))return null;const n=r.readAlignedByte(),s=r.readAlignedByte(),a=r.readAlignedByte();ue(r);let o=1,l=0,c=0,u=0;if(100===n||110===n||122===n||244===n||44===n||83===n||86===n||118===n||128===n){o=ue(r),3===o&&(u=r.readBits(1)),l=ue(r),c=ue(r),r.skipBits(1);if(r.readBits(1))for(let e=0;e<(3!==o?8:12);e++){if(r.readBits(1)){const t=e<6?16:64;let i=8,n=8;for(let e=0;e<t;e++){if(0!==n){n=(i+he(r)+256)%256}i=0===n?i:n}}}}ue(r);const d=ue(r);if(0===d)ue(r);else if(1===d){r.skipBits(1),he(r),he(r);const e=ue(r);for(let t=0;t<e;t++)he(r)}ue(r),r.skipBits(1);const h=ue(r),f=ue(r),m=16*(h+1),p=16*(f+1);let g=m,k=p;const y=r.readBits(1);y||r.skipBits(1),r.skipBits(1);if(r.readBits(1)){const e=ue(r),t=ue(r),i=ue(r),n=ue(r);let s,a;if(0===(0===u?o:0))s=1,a=2-y;else{s=3===o?1:2,a=(1===o?2:1)*(2-y)}g-=s*(e+t),k-=a*(i+n)}let b=2,T=2,v=2,w=0,S={num:1,den:1},P=null,I=null,x=null,C=null;const B=r.pos;if(r.readBits(1)){if(r.readBits(1)){const e=r.readBits(8);if(255===e)S={num:r.readBits(16),den:r.readBits(16)};else{const t=Yt[e];t&&(S=t)}}r.readBits(1)&&r.skipBits(1);if(r.readBits(1)){r.skipBits(3),w=r.readBits(1);r.readBits(1)&&(b=r.readBits(8),T=r.readBits(8),v=r.readBits(8))}r.readBits(1)&&(ue(r),ue(r));r.readBits(1)&&(r.skipBits(32),r.skipBits(32),r.skipBits(1));const e=r.readBits(1);e&&Zt(r);const t=r.readBits(1);t&&Zt(r),(e||t)&&r.skipBits(1),r.skipBits(1),x=r.pos,C=r.readBits(1),C&&(r.skipBits(1),ue(r),ue(r),ue(r),ue(r),P=ue(r),I=ue(r))}if(null===P){oe(null===I);if(44!==n&&86!==n&&100!==n&&110!==n&&122!==n&&244!==n||!(16&s)){const e=h+1,i=(2-y)*(f+1),r=null!=(t=Gi.find(e=>e.level>=a))?t:ce(Gi),n=Math.min(Math.floor(r.maxDpbMbs/(e*i)),16);P=n,I=n}else P=0,I=0}return oe(null!==I),{emulationUnpreventedBytes:i,profileIdc:n,constraintFlags:s,levelIdc:a,frameMbsOnlyFlag:y,chromaFormatIdc:o,bitDepthLumaMinus8:l,bitDepthChromaMinus8:c,codedWidth:m,codedHeight:p,displayWidth:g,displayHeight:k,pixelAspectRatio:S,colourPrimaries:b,matrixCoefficients:v,transferCharacteristics:T,fullRangeFlag:w,numReorderFrames:P,maxDecFrameBuffering:I,vuiParametersFlagBitOffset:B,bitstreamRestrictionFlagBitOffset:x,bitstreamRestrictionFlag:C}}catch(i){return Pt._error("Error parsing AVC SPS:",i),null}},Zt=e=>{const t=ue(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)ue(e),ue(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},ei=e=>{oe(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new Bt(e.emulationUnpreventedBytes),r=new Bt(t);null===e.bitstreamRestrictionFlag?(r.copyBits(e.vuiParametersFlagBitOffset,i),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(oe(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),de(r,2),de(r,1),de(r,16),de(r,16),de(r,e.numReorderFrames),de(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const n=r.pos/8;return oe(Number.isInteger(n)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,n))},ti=(e,t)=>{if(t.description){const i=3&fe(t.description)[21];return qt(e,i+1)}return Ut(e)},ii=e=>e>>1&63,ri=e=>{try{const t=new Bt(Vt(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:n,general_tier_flag:s,general_profile_idc:a,general_profile_compatibility_flags:o,general_constraint_indicator_flags:l,general_level_idc:c}=si(t,i);ue(t);const u=ue(t);let d=0;3===u&&(d=t.readBits(1));const h=ue(t),f=ue(t);let m=h,p=f;if(t.readBits(1)){const e=ue(t),i=ue(t),r=ue(t),n=ue(t);let s=1,a=1;const o=0===d?u:0;1===o?(s=2,a=2):2===o&&(s=2,a=1),m-=(e+i)*s,p-=(r+n)*a}const g=ue(t),k=ue(t);ue(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)ue(t),b=ue(t),ue(t);ue(t),ue(t),ue(t),ue(t),ue(t),ue(t),t.readBits(1)&&t.readBits(1)&&ai(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),ue(t),ue(t),t.skipBits(1));const T=ue(t);if(oi(t,T),t.readBits(1)){const e=ue(t);for(let i=0;i<e;i++)ue(t),t.skipBits(1)}t.skipBits(1),t.skipBits(1);let v=2,w=2,S=2,P=0,I=0,x={num:1,den:1};if(t.readBits(1)){const e=ci(t,i);x=e.pixelAspectRatio,v=e.colourPrimaries,w=e.transferCharacteristics,S=e.matrixCoefficients,P=e.fullRangeFlag,I=e.minSpatialSegmentationIdc}return{displayWidth:m,displayHeight:p,pixelAspectRatio:x,colourPrimaries:v,transferCharacteristics:w,matrixCoefficients:S,fullRangeFlag:P,maxDecFrameBuffering:b+1,spsMaxSubLayersMinus1:i,spsTemporalIdNestingFlag:r,generalProfileSpace:n,generalTierFlag:s,generalProfileIdc:a,generalProfileCompatibilityFlags:o,generalConstraintIndicatorFlags:l,generalLevelIdc:c,chromaFormatIdc:u,bitDepthLumaMinus8:g,bitDepthChromaMinus8:k,minSpatialSegmentationIdc:I}}catch(t){return Pt._error("Error parsing HEVC SPS:",t),null}},ni=e=>{try{const t=[],i=[],r=[],n=[];for(const l of Ut(e)){const s=e.subarray(l.offset,l.offset+l.length),a=ii(s[0]);a===Lt.VPS_NUT?t.push(s):a===Lt.SPS_NUT?i.push(s):a===Lt.PPS_NUT?r.push(s):a!==Lt.PREFIX_SEI_NUT&&a!==Lt.SUFFIX_SEI_NUT||n.push(s)}if(0===i.length||0===r.length)return null;const s=ri(i[0]);if(!s)return null;let a=0;if(r.length>0){const e=r[0],t=new Bt(Vt(e));t.skipBits(16),ue(t),ue(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),ue(t),ue(t),he(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&ue(t),he(t),he(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),n=t.readBits(1);a=i||n?i&&!n?2:!i&&n?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:Lt.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Lt.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Lt.PPS_NUT,nalUnits:r}]:[],...n.length?[{arrayCompleteness:1,nalUnitType:ii(n[0][0]),nalUnits:n}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:a,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return Pt._error("Error building HEVC Decoder Configuration Record:",t),null}},si=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),n=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const a=new Uint8Array(6);for(let u=0;u<6;u++)a[u]=e.readBits(8);const o=e.readBits(8),l=[],c=[];for(let u=0;u<t;u++)l.push(e.readBits(1)),c.push(e.readBits(1));if(t>0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u<t;u++)l[u]&&e.skipBits(88),c[u]&&e.skipBits(8);return{general_profile_space:i,general_tier_flag:r,general_profile_idc:n,general_profile_compatibility_flags:s,general_constraint_indicator_flags:a,general_level_idc:o}},ai=e=>{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&he(e);for(let t=0;t<i;t++)he(e)}else ue(e)}},oi=(e,t)=>{const i=[];for(let r=0;r<t;r++)i[r]=li(e,r,t,i)},li=(e,t,i,r)=>{var n;let s=0,a=0,o=0;if(0!==t&&(a=e.readBits(1)),a){if(t===i){o=t-(ue(e)+1)}else o=t-1;e.readBits(1),ue(e);const a=null!=(n=r[o])?n:0;for(let 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r=!1,n=!1,s=!1;r=1===e.readBits(1),n=1===e.readBits(1),(r||n)&&(s=1===e.readBits(1),s&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),s&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5));for(let a=0;a<=i;a++){let t=!0;1===e.readBits(1)||(t=1===e.readBits(1));let i=!1;t?ue(e):i=1===e.readBits(1);let a=1;if(!i){a=ue(e)+1}r&&di(e,a,s),n&&di(e,a,s)}},di=(e,t,i)=>{for(let r=0;r<t;r++)ue(e),ue(e),i&&(ue(e),ue(e)),e.readBits(1)};var hi,fi;(fi=hi||(hi={}))[fi.audAllowed=0]="audAllowed",fi[fi.beforeFirstVcl=1]="beforeFirstVcl",fi[fi.afterFirstVcl=2]="afterFirstVcl",fi[fi.eoBitstreamAllowed=3]="eoBitstreamAllowed",fi[fi.noMoreDataAllowed=4]="noMoreDataAllowed";const mi=(e,t)=>{const i=new Set;let r=hi.audAllowed;for(const s of ti(e,t)){if(r===hi.noMoreDataAllowed){i.add(s.offset);continue}const t=ii(e[s.offset]);if(r===hi.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let n=!1;35===t?r>hi.audAllowed?n=!0:r=hi.beforeFirstVcl:t<=31?r>hi.afterFirstVcl?n=!0:r=hi.afterFirstVcl:36===t?r!==hi.afterFirstVcl?n=!0:r=hi.eoBitstreamAllowed:37===t?r<hi.afterFirstVcl?n=!0:r=hi.noMoreDataAllowed:32===t||33===t||34===t||39===t||t>=41&&t<=44||t>=48&&t<=55?r>hi.beforeFirstVcl?n=!0:r=hi.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r<hi.afterFirstVcl&&(n=!0),n&&i.add(s.offset)}if(0===i.size)return null;const n=[];for(const s of ti(e,t))i.has(s.offset)||n.push(e.subarray(s.offset,s.offset+s.length));return((e,t)=>{if(t.description){const i=3&fe(t.description)[21];return Xt(e,i+1)}return Kt(e)})(n,t)},pi={1:{colourPrimaries:5,transferCharacteristics:6,matrixCoefficients:5},2:{colourPrimaries:1,transferCharacteristics:1,matrixCoefficients:1},3:{colourPrimaries:6,transferCharacteristics:6,matrixCoefficients:6},4:{colourPrimaries:7,transferCharacteristics:7,matrixCoefficients:7},5:{colourPrimaries:9,transferCharacteristics:14,matrixCoefficients:9},7:{colourPrimaries:1,transferCharacteristics:13,matrixCoefficients:0}},gi=e=>{var t,i,r;const n=new Bt(e);if(2!==n.readBits(2))return null;const s=n.readBits(1),a=(n.readBits(1)<<1)+s;3===a&&n.skipBits(1);if(1===n.readBits(1))return null;if(0!==n.readBits(1))return null;n.skipBits(2);if(4817730!==n.readBits(24))return null;let o=8;if(a>=2){o=n.readBits(1)?12:10}const l=n.readBits(3);let c=0,u=0;if(7!==l){if(u=n.readBits(1),1===a||3===a){const e=n.readBits(1),t=n.readBits(1);c=e||t?e&&!t?2:1:3,n.skipBits(1)}else c=1}else c=3,u=1;const d=(n.readBits(16)+1)*(n.readBits(16)+1);let h=ce(Qi).level;for(const m of Qi)if(d<=m.maxPictureSize){h=m.level;break}const f=pi[l];return{profile:a,level:h,bitDepth:o,chromaSubsampling:c,videoFullRangeFlag:u,colourPrimaries:null!=(t=null==f?void 0:f.colourPrimaries)?t:2,transferCharacteristics:null!=(i=null==f?void 0:f.transferCharacteristics)?i:2,matrixCoefficients:null!=(r=null==f?void 0:f.matrixCoefficients)?r:2}},ki=function*(e){const t=new Bt(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*q(2,7*i),!(128&r))break;if(7===i&&128&r)return null}return e>q(2,32)-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const r=t.readBits(4),n=t.readBits(1),s=t.readBits(1);let a;if(t.skipBits(1),n&&t.skipBits(8),s){const e=i();if(null===e)return;a=e}else a=Math.floor(t.getBitsLeft()/8);oe(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+a)},t.skipBits(8*a)}},yi=e=>{for(const{type:t,data:i}of ki(e)){if(1!==t)continue;const e=new Bt(i),r=e.readBits(3);e.readBits(1);const n=e.readBits(1);let 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m=8;if(2===r&&f){m=e.readBits(1)?12:10}else r<=2&&(m=f?10:8);let p=0;1!==r&&(p=e.readBits(1));let g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,T=1,v=1,w=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,T=0,v=0):(b=e.readBits(1),0===r?(T=1,v=1):1===r?(T=0,v=0):12===m?(T=e.readBits(1),v=T?e.readBits(1):0):(T=1,v=0),T&&v&&(w=e.readBits(2))),{profile:r,level:s,tier:a,bitDepth:m,monochrome:p,chromaSubsamplingX:T,chromaSubsamplingY:v,chromaSamplePosition:w,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},bi=e=>{if(e.length<36)return null;const t=me(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},Ti=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],vi=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in Setup header.");if("vorbis"!==String.fromCharCode(...e.slice(1,7)))throw new Error("Invalid packet signature in Setup header.");const t=e.length,i=new Uint8Array(t);for(let u=0;u<t;u++)i[u]=e[t-1-u];const r=new Bt(i);let n=0;for(;r.getBitsLeft()>97;)if(1===r.readBits(1)){n=r.pos;break}if(0===n)throw new Error("Invalid Setup header: framing bit not found.");let s=0,a=!1,o=0;for(;r.getBitsLeft()>=97;){const e=r.pos,t=r.readBits(8),i=r.readBits(16),n=r.readBits(16);if(t>63||0!==i||0!==n){r.pos=e;break}if(r.skipBits(1),s++,s>64)break;r.clone().readBits(6)+1===s&&(a=!0,o=s)}if(!a)throw new Error("Invalid Setup header: mode header not found.");if(o>63)throw new Error(`Unsupported mode count: ${o}.`);const l=o;r.pos=0,r.skipBits(n);const c=Array(l).fill(0);for(let u=l-1;u>=0;u--)r.skipBits(40),c[u]=r.readBits(1);return{modeBlockflags:c}},wi=(e,t,i)=>{switch(e){case"avc":for(const e of Wt(i,t)){const t=i[e.offset],r=Ht(t);if(r>=Nt.NON_IDR_SLICE&&r<=Nt.SLICE_DPC)return"delta";if(r===Nt.IDR)return"key";if(r===Nt.SEI&&!at()){const t=i.subarray(e.offset,e.offset+e.length),r=Vt(t);let n=1;do{let e=0;for(;;){const t=r[n++];if(void 0===t)break;if(e+=t,t<255)break}let t=0;for(;;){const e=r[n++];if(void 0===e)break;if(t+=e,e<255)break}if(e===6){const e=new Bt(r);e.pos=8*n;const t=ue(e),i=e.readBits(1);if(0===t&&1===i)return"key"}n+=t}while(n<r.length-1)}}return"delta";case"hevc":for(const e of ti(i,t)){const t=ii(i[e.offset]);if(t<Lt.BLA_W_LP)return"delta";if(t<=Lt.RSV_IRAP_VCL23)return"key"}return"delta";case"vp8":return 0===(1&i[0])?"key":"delta";case"vp9":{const e=new 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e=c.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=t.discNumber||(t.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.discsTotal||(t.discsTotal=r))}break;case"DISCTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.discsTotal||(t.discsTotal=e))}break;case"DATE":{const e=new Date(c);Number.isNaN(e.getTime())||null!=t.date||(t.date=e)}break;case"GENRE":null!=t.genre||(t.genre=c);break;case"METADATA_BLOCK_PICTURE":{const e=ht(c),i=me(e),r=i.getUint32(0,!1),n=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+n)),a=i.getUint32(8+n,!1),o=pe.decode(e.subarray(12+n,12+n+a)),l=i.getUint32(n+a+28),u=e.subarray(n+a+32,n+a+32+l);null!=t.images||(t.images=[]),t.images.push({data:u,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},xi=[2,1,2,3,3,4,4,5],Ci=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new Bt(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),n=t.readBits(5);if(n>8)return null;const s=t.readBits(3),a=t.readBits(3);0!==(1&a)&&1!==a&&t.skipBits(2),0!==(4&a)&&t.skipBits(2),2===a&&t.skipBits(2);return{fscod:i,bsid:n,bsmod:s,acmod:a,lfeon:t.readBits(1),bitRateCode:Math.floor(r/2)}},Bi=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,576,384,418,576,448,486,672,448,488,672,512,556,768,512,558,768,640,696,960,640,698,960,768,834,1152,768,836,1152,896,974,1344,896,976,1344,1024,1114,1536,1024,1116,1536,1280,1392,1920,1280,1394,1920,1536,1670,2304,1536,1672,2304,1792,1950,2688,1792,1952,2688,2048,2228,3072,2048,2230,3072,2304,2506,3456,2304,2508,3456,2560,2786,3840,2560,2788,3840],Ei=[1,2,3,6],_i=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new Bt(e);t.skipBits(16);const i=t.readBits(2);if(t.skipBits(3),0!==i&&2!==i)return null;const r=t.readBits(11),n=t.readBits(2);let s,a=0;3===n?(a=t.readBits(2),s=3):s=t.readBits(2);const o=t.readBits(3),l=t.readBits(1),c=t.readBits(5);if(c<11||c>16)return null;const u=Ei[s];let d;d=n<3?Mt[n]/1e3:Dt[a]/1e3;return{dataRate:Math.round((r+1)*d/(16*u)),substreams:[{fscod:n,fscod2:a,bsid:c,bsmod:0,acmod:o,lfeon:l,numDepSub:0,chanLoc:0}]}},Ri=e=>{const t=e.substreams[0];return oe(t),t.fscod<3?Mt[t.fscod]:null!==t.fscod2&&t.fscod2<3?Dt[t.fscod2]:null},Fi=e=>{const t=e.substreams[0];oe(t);let i=xi[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let r=0;r<9;r++)t.chanLoc&1<<8-r&&(i+=e[r])}return i},Ai=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],Mi=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],Di=[16,16,20,20,0,24,24,0],Ni=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],Oi=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],Li=[32e3,44100,48e3,0],zi=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],Ui=[512,1024,2048,4096],qi=e=>{const t=Hi(e),i=me(e);let r=t?4*Math.ceil(t.frameSize/4):0,n=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=Vi(e.subarray(r));if(!t)break;null!=n||(n=t),r+=t.frameSize}if(t)return{frameSize:n?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==n};if(!(null==n?void 0:n.asset))return null;const{asset:s}=n;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},Wi=e=>{const t=qi(e);return(null==t?void 0:t.core)?t.hasExtensions?"dtsh":"dtsc":null},Hi=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new Bt(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const n=t.readBits(14)+1;if(n<96)return null;const s=t.readBits(6);if(s>=Ni.length)return null;const a=Ai[t.readBits(4)];if(0===a)return null;const o=Mi[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const l=t.readBits(2);if(3===l)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const c=Di[t.readBits(3)];if(0===c)return null;const u=0!==l;return{frameSize:n,sampleRate:a,numberOfChannels:Ni[s]+(u?1:0),sampleCount:32*r,channelLayout:Oi[s]|(u?8:0),amode:s,lfePresent:u,bitRate:o,pcmResolution:c}},Vi=e=>{if(e.length<10)return null;if(100!==e[0]||88!==e[1]||32!==e[2]||37!==e[3])return null;const t=new Bt(e);t.skipBits(32),t.skipBits(8);const i=t.readBits(2),r=t.readBits(1),n=8+4*r,s=16+4*r;t.skipBits(n);const a=t.readBits(s)+1,o={frameSize:a,asset:null};if(!t.readBits(1))return o;const l=Li[t.readBits(2)],c=512*(t.readBits(3)+1);t.readBits(1)&&t.skipBits(36);const u=t.readBits(3)+1,d=t.readBits(3)+1,h=[];for(let k=0;k<u;k++)h.push(t.readBits(i+1));for(const k of h)t.skipBits(8*Xe(k));if(t.readBits(1)){t.skipBits(2);const e=t.readBits(2)+1<<2,i=t.readBits(2)+1;t.skipBits(i*e)}for(let k=0;k<d;k++)t.skipBits(s);t.skipBits(9),t.skipBits(3),t.readBits(1)&&t.skipBits(4),t.readBits(1)&&t.skipBits(24),t.readBits(1)&&t.skipBits(8*(t.readBits(10)+1));const f=t.readBits(5)+1,m=zi[t.readBits(4)],p=t.readBits(8)+1;let g=0;if(t.readBits(1)&&(p>2&&t.skipBits(1),p>6&&t.skipBits(1),t.readBits(1))){const e=t.readBits(2)+1<<2;g=t.readBits(e)}return 0===l||t.getBitsLeft()<0?o:{frameSize:a,asset:{sampleRate:m,numberOfChannels:p,sampleCount:Math.round(c*m/l),channelLayout:g,pcmResolution:f}}},ji=e=>Xe(e)+Xe(44646&e),Ki=["avc","hevc","vp9","av1","vp8","prores"],Xi=["pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be","pcm-u8","pcm-s8","ulaw","alaw"],$i=["aac","opus","mp3","vorbis","flac","ac3","eac3","dts",...Xi],Gi=[{maxMacroblocks:99,maxBitrate:64e3,maxDpbMbs:396,level:10},{maxMacroblocks:396,maxBitrate:192e3,maxDpbMbs:900,level:11},{maxMacroblocks:396,maxBitrate:384e3,maxDpbMbs:2376,level:12},{maxMacroblocks:396,maxBitrate:768e3,maxDpbMbs:2376,level:13},{maxMacroblocks:396,maxBitrate:2e6,maxDpbMbs:2376,level:20},{maxMacroblocks:792,maxBitrate:4e6,maxDpbMbs:4752,level:21},{maxMacroblocks:1620,maxBitrate:4e6,maxDpbMbs:8100,level:22},{maxMacroblocks:1620,maxBitrate:1e7,maxDpbMbs:8100,level:30},{maxMacroblocks:3600,maxBitrate:14e6,maxDpbMbs:18e3,level:31},{maxMacroblocks:5120,maxBitrate:2e7,maxDpbMbs:20480,level:32},{maxMacroblocks:8192,maxBitrate:2e7,maxDpbMbs:32768,level:40},{maxMacroblocks:8192,maxBitrate:5e7,maxDpbMbs:32768,level:41},{maxMacroblocks:8704,maxBitrate:5e7,maxDpbMbs:34816,level:42},{maxMacroblocks:22080,maxBitrate:135e6,maxDpbMbs:110400,level:50},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:51},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:52},{maxMacroblocks:139264,maxBitrate:24e7,maxDpbMbs:696320,level:60},{maxMacroblocks:139264,maxBitrate:48e7,maxDpbMbs:696320,level:61},{maxMacroblocks:139264,maxBitrate:8e8,maxDpbMbs:696320,level:62}],Qi=[{maxPictureSize:36864,maxBitrate:2e5,level:10},{maxPictureSize:73728,maxBitrate:8e5,level:11},{maxPictureSize:122880,maxBitrate:18e5,level:20},{maxPictureSize:245760,maxBitrate:36e5,level:21},{maxPictureSize:552960,maxBitrate:72e5,level:30},{maxPictureSize:983040,maxBitrate:12e6,level:31},{maxPictureSize:2228224,maxBitrate:18e6,level:40},{maxPictureSize:2228224,maxBitrate:3e7,level:41},{maxPictureSize:8912896,maxBitrate:6e7,level:50},{maxPictureSize:8912896,maxBitrate:12e7,level:51},{maxPictureSize:8912896,maxBitrate:18e7,level:52},{maxPictureSize:35651584,maxBitrate:18e7,level:60},{maxPictureSize:35651584,maxBitrate:24e7,level:61},{maxPictureSize:35651584,maxBitrate:48e7,level:62}],Yi=".01.01.01.01.00",Ji=".0.110.01.01.01.0",Zi=["ap4x","ap4h","apch","apcn","apcs","apco"],er=["dtsc","dtsh","dtsl","dtse"],tr=e=>{const{codec:t,codecDescription:i,colorSpace:r,avcCodecInfo:n,hevcCodecInfo:s,vp9CodecInfo:a,av1CodecInfo:o,proresFormat:l}=e;if("avc"===t){if(oe(null!==e.avcType),n){const t=new Uint8Array([n.avcProfileIndication,n.profileCompatibility,n.avcLevelIndication]);return`avc${e.avcType}.${Be(t)}`}if(!i||i.byteLength<4)throw new TypeError("AVC decoder description is not provided or is not at least 4 bytes long.");return`avc${e.avcType}.${Be(i.subarray(1,4))}`}if("hevc"===t){let e,t,r,n,a,o;if(s)e=s.generalProfileSpace,t=s.generalProfileIdc,r=Ee(s.generalProfileCompatibilityFlags),n=s.generalTierFlag,a=s.generalLevelIdc,o=[...s.generalConstraintIndicatorFlags];else{if(!i||i.byteLength<23)throw new TypeError("HEVC decoder description is not provided or is not at least 23 bytes long.");const s=me(i),l=s.getUint8(1);e=l>>6&3,t=31&l,r=Ee(s.getUint32(2)),n=l>>5&1,a=s.getUint8(12),o=[];for(let e=0;e<6;e++)o.push(s.getUint8(6+e))}let l="hev1.";for(l+=["","A","B","C"][e]+t,l+=".",l+=r.toString(16).toUpperCase(),l+=".",l+=0===n?"L":"H",l+=a;o.length>0&&0===o[o.length-1];)o.pop();return o.length>0&&(l+=".",l+=o.map(e=>e.toString(16).toUpperCase()).join(".")),l}if("vp8"===t)return"vp8";if("vp9"===t){if(!a){const t=e.width*e.height;let i=ce(Qi).level;for(const e of Qi)if(t<=e.maxPictureSize){i=e.level;break}return`vp09.00.${i.toString().padStart(2,"0")}.08`}let t=`vp09.${a.profile.toString().padStart(2,"0")}.${a.level.toString().padStart(2,"0")}.${a.bitDepth.toString().padStart(2,"0")}.${a.chromaSubsampling.toString().padStart(2,"0")}`;return t+=`.${a.colourPrimaries.toString().padStart(2,"0")}.${a.transferCharacteristics.toString().padStart(2,"0")}.${a.matrixCoefficients.toString().padStart(2,"0")}.${a.videoFullRangeFlag.toString().padStart(2,"0")}`,t.endsWith(Yi)&&(t=t.slice(0,-15)),t}if("av1"===t){if(!o){const t=e.width*e.height;let i=ce(Qi).level;for(const e of Qi)if(t<=e.maxPictureSize){i=e.level;break}return`av01.0.${i.toString().padStart(2,"0")}M.08`}const t=o.profile,i=o.level.toString().padStart(2,"0"),n=o.tier?"H":"M",s=o.bitDepth.toString().padStart(2,"0"),a=o.monochrome?"1":"0",l=100*o.chromaSubsamplingX+10*o.chromaSubsamplingY+1*(o.chromaSubsamplingX&&o.chromaSubsamplingY?o.chromaSamplePosition:0),c=(null==r?void 0:r.primaries)?ke[r.primaries]:1,u=(null==r?void 0:r.transfer)?be[r.transfer]:1,d=(null==r?void 0:r.matrix)?ve[r.matrix]:1,h=(null==r?void 0:r.fullRange)?1:0;let f=`av01.${t}.${i}${n}.${s}`;return f+=`.${a}.${l.toString().padStart(3,"0")}`,f+=`.${c.toString().padStart(2,"0")}`,f+=`.${u.toString().padStart(2,"0")}`,f+=`.${d.toString().padStart(2,"0")}`,f+=`.${h}`,f.endsWith(Ji)&&(f=f.slice(0,-17)),f}if("prores"===t)return null!=l?l:"apch";throw null!==t&&Oe(t),new TypeError(`Unhandled codec '${t}'.`)},ir=e=>{var t,i,r,n,s,a;switch(e.codec){case"avc":{let r=null==(t=e.avcCodecInfo)?void 0:t.sequenceParameterSets[0];if(!r&&e.codecDescription&&(r=null==(i=Qt(e.codecDescription))?void 0:i.sequenceParameterSets[0]),r){const e=Jt(r);if(e)return{primaries:ye[e.colourPrimaries],transfer:Te[e.transferCharacteristics],matrix:we[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"hevc":{let t=null==(n=null==(r=e.hevcCodecInfo)?void 0:r.arrays.find(e=>e.nalUnitType===Lt.SPS_NUT))?void 0:n.nalUnits[0];if(!t&&e.codecDescription&&(t=null==(a=null==(s=(e=>{try{const t=me(e);let i=0;const r=t.getUint8(i++),n=t.getUint8(i++),s=n>>6&3,a=n>>5&1,o=31&n,l=t.getUint32(i,!1);i+=4;const c=e.subarray(i,i+6);i+=6;const u=t.getUint8(i++),d=(15&t.getUint8(i++))<<8|t.getUint8(i++),h=3&t.getUint8(i++),f=3&t.getUint8(i++),m=7&t.getUint8(i++),p=7&t.getUint8(i++),g=t.getUint16(i,!1);i+=2;const k=t.getUint8(i++),y=k>>6&3,b=k>>3&7,T=k>>2&1,v=3&k,w=t.getUint8(i++),S=[];for(let P=0;P<w;P++){const r=t.getUint8(i++),n=r>>7&1,s=63&r,a=t.getUint16(i,!1);i+=2;const o=[];for(let l=0;l<a;l++){const r=t.getUint16(i,!1);i+=2,o.push(e.subarray(i,i+r)),i+=r}S.push({arrayCompleteness:n,nalUnitType:s,nalUnits:o})}return{configurationVersion:r,generalProfileSpace:s,generalTierFlag:a,generalProfileIdc:o,generalProfileCompatibilityFlags:l,generalConstraintIndicatorFlags:c,generalLevelIdc:u,minSpatialSegmentationIdc:d,parallelismType:h,chromaFormatIdc:f,bitDepthLumaMinus8:m,bitDepthChromaMinus8:p,avgFrameRate:g,constantFrameRate:y,numTemporalLayers:b,temporalIdNested:T,lengthSizeMinusOne:v,arrays:S}}catch(t){return Pt._error("Error deserializing HEVC Decoder Configuration Record:",t),null}})(e.codecDescription))?void 0:s.arrays.find(e=>e.nalUnitType===Lt.SPS_NUT))?void 0:a.nalUnits[0]),t){const e=ri(t);if(e)return{primaries:ye[e.colourPrimaries],transfer:Te[e.transferCharacteristics],matrix:we[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"vp8":break;case"vp9":if(e.vp9CodecInfo)return{primaries:ye[e.vp9CodecInfo.colourPrimaries],transfer:Te[e.vp9CodecInfo.transferCharacteristics],matrix:we[e.vp9CodecInfo.matrixCoefficients],fullRange:!!e.vp9CodecInfo.videoFullRangeFlag};break;case"av1":if(e.av1CodecInfo)return{primaries:ye[e.av1CodecInfo.colourPrimaries],transfer:Te[e.av1CodecInfo.transferCharacteristics],matrix:we[e.av1CodecInfo.matrixCoefficients],fullRange:!!e.av1CodecInfo.videoFullRangeFlag};break;case"prores":if(e.proresCodecInfo)return{primaries:ye[e.proresCodecInfo.colourPrimaries],transfer:Te[e.proresCodecInfo.transferCharacteristics],matrix:we[e.proresCodecInfo.matrixCoefficients],fullRange:e.proresCodecInfo.fullRange}}return{primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0}},rr=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:n}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=Rt(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return null!=n?n:"dtsc";if(t&&Xi.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},nr=48e3,sr=/^pcm-([usf])(\d+)(be)?$/,ar=e=>{if(oe(Xi.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=sr.exec(e);let i;oe(t),i="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:i,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?q(2,7):0}},or=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":Zi.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":er.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":sr.test(e)?e:"webvtt"===e?"webvtt":null,lr=[44100,48e3,32e3],cr=[-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,32,40,48,56,64,80,96,112,128,160,192,224,256,320,-1,-1,32,48,56,64,80,96,112,128,160,192,224,256,320,384,-1,-1,32,64,96,128,160,192,224,256,288,320,352,384,416,448,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,32,48,56,64,80,96,112,128,144,160,176,192,224,256,-1],ur=1483304551,dr=1231971951,hr=(e,t)=>3===e?3===t?21:36:3===t?13:21,fr=(e,t)=>{const i=e>>>24,r=e>>>16&255,n=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==n&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let a=0,o=0;16&r?a=8&r?0:1:(a=1,o=1);const l=r>>3&3,c=r>>1&3,u=(n>>2&3)%3,d=s>>6&3,h=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=cr[16*a*4+16*c+(n>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=lr[u]>>a+o,b=((e,t,i,r,n)=>0===t?0:1===t?Math.floor(144*i/(r<<e))+n:2===t?Math.floor(144*i/r)+n:4*(Math.floor(12*i/r)+n))(a,c,k,y,n>>1&1);if(null!==t&&t<b)return{header:null,bytesAdvanced:1};let T;return T=3===l?3===c?384:1152:3===c?384:2===c?1152:576,{header:{totalSize:b,mpegVersionId:l,lowSamplingFrequency:a,layer:c,bitrate:k,frequencyIndex:u,sampleRate:y,channel:d,modeExtension:h,copyright:f,original:m,emphasis:p,audioSamplesInFrame:T},bytesAdvanced:1}},mr=e=>{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var pr,gr;(gr=pr||(pr={}))[gr.FrameCount=1]="FrameCount",gr[gr.FileSize=2]="FileSize",gr[gr.Toc=4]="Toc";const kr=e=>3===e?1:2;class yr{constructor(e){this.input=e}dispose(){}}const br=new Uint8Array(0);class Tr{constructor(e,t,i,r,n=-1,s,a){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=n,e===br&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(n))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==a&&("object"!==typeof a||!a))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==(null==a?void 0:a.alpha)&&!(a.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==(null==a?void 0:a.alphaByteLength)&&(!Number.isInteger(a.alphaByteLength)||a.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=null!=a?a:{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===br}get microsecondTimestamp(){return Math.trunc(Qe*this.timestamp)}get microsecondDuration(){return Math.trunc(Qe*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){var i;if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const r=new Uint8Array(e.byteLength);return e.copyTo(r),new Tr(r,e.type,e.timestamp/1e6,(null!=(i=e.duration)?i:0)/1e6,void 0,void 0,t)}clone(e){var t,i,r,n,s,a;if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==(null==e?void 0:e.data)&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==(null==e?void 0:e.type)&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==(null==e?void 0:e.timestamp)&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==(null==e?void 0:e.duration)&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sequenceNumber)&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sideData)&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new Tr(null!=(t=null==e?void 0:e.data)?t:this.data,null!=(i=null==e?void 0:e.type)?i:this.type,null!=(r=null==e?void 0:e.timestamp)?r:this.timestamp,null!=(n=null==e?void 0:e.duration)?n:this.duration,null!=(s=null==e?void 0:e.sequenceNumber)?s:this.sequenceNumber,this.byteLength,null!=(a=null==e?void 0:e.sideData)?a:this.sideData)}}const vr=e=>{const t=me(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const n=Be(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;t<r;t++)s.push(Be(e.subarray(i,i+16))),i+=16}}const a=t.getUint32(i);return i+=4,{systemId:n,keyIds:s,data:e.slice(i,i+a)}},wr=(e,t)=>e.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i<e.length;i++)if(e[i]!==t[i])return!1;return!0})(e.data,t.data),Sr=e=>{let t=Cl(e);const i=Nl(e,4);let r=8;1===t&&(t=Rl(e),r=16);const n=t-r;return n<0?null:{name:i,totalSize:t,headerSize:r,contentSize:n}},Pr=e=>El(e)/65536,Ir=e=>El(e)/1073741824,xr=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=vl(e);if(t|=127&i,0===(128&i))break}return t},Cr=e=>{let t=Sl(e);return e.skip(2),t=Math.min(t,e.remainingLength),pe.decode(Tl(e,t))},Br=e=>{const t=Sr(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=Cl(e);e.skip(4);const r=Tl(e,t.contentSize-8);switch(i){case 1:return pe.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new It(r,"image/jpeg");case 14:return new It(r,"image/png");case 27:return new It(r,"image/bmp");default:return r}},Er=16,_r=new Uint32Array(256),Rr=new Uint32Array(256),Fr=new Uint32Array(256),Ar=new Uint32Array(256),Mr=new Uint32Array(256),Dr=new Uint32Array(256),Nr=new Uint32Array(10);let Or=!1;class Lr{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Er/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Er),this.out=new Uint8Array(Er),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){oe(16===e.byteLength),oe(16===t.byteLength),Or||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,a=1;s<256;s++)i[s]=a,t[a]=s,a=a^a<<1^(128&a?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let n=r^r<<1^r<<2^r<<3^r<<4;n=n>>>8^255&n^99,e[s]=n}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);_r[s]=t<<24|t<<16|t<<8|t,Dr[s]=i<<24|i<<16|i<<8|i;const n=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);Rr[s]=n,Fr[s]=n>>>8|n<<24,Ar[s]=n>>>16|n<<16,Mr[s]=n>>>24|n<<8}let n=1;for(let s=0;s<10;s++)Nr[s]=n<<24,n=n<<1^(128&n?283:0);Or=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let n=4;n<44;n+=4){const e=this.roundkey[n-1];this.roundkey[n]=this.roundkey[n-4]^4278190080&_r[e>>>16&255]^16711680&_r[e>>>8&255]^65280&_r[e>>>0&255]^255&_r[e>>>24&255]^Nr[n/4-1],this.roundkey[n+1]=this.roundkey[n-3]^this.roundkey[n],this.roundkey[n+2]=this.roundkey[n-2]^this.roundkey[n+1],this.roundkey[n+3]=this.roundkey[n-1]^this.roundkey[n+2]}for(let n=0,s=40;n<s;n+=4,s-=4)for(let e=0;e<4;e++){const t=this.roundkey[n+e];this.roundkey[n+e]=this.roundkey[s+e],this.roundkey[s+e]=t}for(let n=4;n<40;n+=4)for(let e=0;e<4;e++){const t=this.roundkey[n+e];this.roundkey[n+e]=Rr[255&_r[t>>>24&255]]^Fr[255&_r[t>>>16&255]]^Ar[255&_r[t>>>8&255]]^Mr[255&_r[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const n=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),a=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let l,c,u,d;for(let g=1;g<10;g++){const n=4*g;l=Rr[e>>>24]^Fr[r>>>16&255]^Ar[i>>>8&255]^Mr[255&t]^this.roundkey[n],c=Rr[t>>>24]^Fr[e>>>16&255]^Ar[r>>>8&255]^Mr[255&i]^this.roundkey[n+1],u=Rr[i>>>24]^Fr[t>>>16&255]^Ar[e>>>8&255]^Mr[255&r]^this.roundkey[n+2],d=Rr[r>>>24]^Fr[i>>>16&255]^Ar[t>>>8&255]^Mr[255&e]^this.roundkey[n+3],e=l,t=c,i=u,r=d}const h=4278190080&Dr[e>>>24&255]^16711680&Dr[r>>>16&255]^65280&Dr[i>>>8&255]^255&Dr[t>>>0&255]^this.roundkey[40],f=4278190080&Dr[t>>>24&255]^16711680&Dr[e>>>16&255]^65280&Dr[r>>>8&255]^255&Dr[i>>>0&255]^this.roundkey[41],m=4278190080&Dr[i>>>24&255]^16711680&Dr[t>>>16&255]^65280&Dr[e>>>8&255]^255&Dr[r>>>0&255]^this.roundkey[42],p=4278190080&Dr[r>>>24&255]^16711680&Dr[i>>>16&255]^65280&Dr[t>>>8&255]^255&Dr[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,h^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=n,this.iv[1]=s,this.iv[2]=a,this.iv[3]=o}}class zr extends yr{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.tracks.map(e=>e.trackBacking)})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)}),hasAudio:this.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)}),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(ct(r)&&(r=yield r),!r)break;const n=e,s=Sr(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=Nl(r,4);this.isQuickTime="qt  "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(ct(e)&&(e=yield e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>n+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');yield this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=n+s.totalSize}if(!i&&this.input._initInput&&(yield this.copyMetadataFromInitInput(this.input._initInput)),t){oe(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);ct(e)&&(e=yield e),oe(e);const t=Cl(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(ct(e)&&(e=yield e),e){const t=Sr(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);ct(i)&&(i=yield i),i&&this.readContiguousBoxes(i)}}}}}))()}copyMetadataFromInitInput(e){return Y(this,null,function*(){const t=yield e._getDemuxer();if(t.constructor!==zr)throw new Error("Init input must match the input's format.");yield t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const e of t.tracks){const t={id:e.id,demuxer:this,trackBacking:null,disposition:e.disposition,timescale:e.timescale,durationInMediaTimescale:e.durationInMediaTimescale,durationInMovieTimescale:e.durationInMovieTimescale,rotation:e.rotation,internalCodecId:e.internalCodecId,name:e.name,languageCode:e.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:e.editListPreviousSegmentDurations,editListOffset:e.editListOffset,encryptionInfo:e.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:e.info};if(e.trackBacking)if(oe(t.info),"video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new qr(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new Wr(e),this.tracks.push(t)}}})}getSampleTableForTrack(e){var t,i;if(e.sampleTable)return e.sampleTable;const r={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=r,null===e.sampleTableByteOffset)return r;oe(this.moovSlice);const n=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(n),this.currentTrack=null;if("audio"===(null==(t=e.info)?void 0:t.type)&&e.info.codec&&Xi.includes(e.info.codec)&&0===r.sampleCompositionTimeOffsets.length){oe("audio"===(null==(i=e.info)?void 0:i.type));const t=ar(e.info.codec),n=[],s=[];for(let i=0;i<r.sampleToChunk.length;i++){const a=r.sampleToChunk[i],o=r.sampleToChunk[i+1],l=(o?o.startChunkIndex:r.chunkOffsets.length)-a.startChunkIndex;for(let i=0;i<l;i++){const o=a.startSampleIndex+i*a.samplesPerChunk,l=o+a.samplesPerChunk,c=Re(r.sampleTimingEntries,o,e=>e.startIndex),u=r.sampleTimingEntries[c],d=Re(r.sampleTimingEntries,l,e=>e.startIndex),h=r.sampleTimingEntries[d],f=u.startDecodeTimestamp+(o-u.startIndex)*u.delta,m=h.startDecodeTimestamp+(l-h.startIndex)*h.delta-f,p=ce(n);p&&p.delta===m?p.count++:n.push({startIndex:a.startChunkIndex+i,startDecodeTimestamp:f,count:1,delta:m});const g=a.samplesPerChunk*t.sampleSize*e.info.numberOfChannels;s.push(g)}a.startSampleIndex=a.startChunkIndex,a.samplesPerChunk=1}r.sampleTimingEntries=n,r.sampleSizes=s}if(r.sampleCompositionTimeOffsets.length>0){r.presentationTimestamps=[];for(const e of r.sampleTimingEntries)for(let t=0;t<e.count;t++)r.presentationTimestamps.push({presentationTimestamp:e.startDecodeTimestamp+t*e.delta,sampleIndex:e.startIndex+t});for(const e of r.sampleCompositionTimeOffsets)for(let t=0;t<e.count;t++){const i=e.startIndex+t,n=r.presentationTimestamps[i];n&&(n.presentationTimestamp+=e.offset)}r.presentationTimestamps.sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp),r.presentationTimestampIndexMap=Array(r.presentationTimestamps.length).fill(-1);for(let e=0;e<r.presentationTimestamps.length;e++)r.presentationTimestampIndexMap[r.presentationTimestamps[e].sampleIndex]=e}return r}readFragment(e){return Y(this,null,function*(){var t;if((null==(t=this.lastReadFragment)?void 0:t.moofOffset)===e)return this.lastReadFragment;let i=this.reader.requestSliceRange(e,8,16);ct(i)&&(i=yield i),oe(i);const r=Sr(i);oe("moof"===(null==r?void 0:r.name));let n=this.reader.requestSlice(e,r.totalSize);ct(n)&&(n=yield n),oe(n),this.traverseBox(n);const s=this.lastReadFragment;oe(s&&s.moofOffset===e);for(const[,e]of s.trackData){const t=e.track,{fragmentPositionCache:i}=t;if(!e.startTimestampIsFinal){const r=t.fragmentLookupTable.find(e=>e.moofOffset===s.moofOffset);if(r)Xr(e,r.timestamp);else{const t=Re(i,s.moofOffset-1,e=>e.moofOffset);if(-1!==t){const r=i[t];Xr(e,r.endTimestamp)}}e.startTimestampIsFinal=!0}const r=Re(i,e.startTimestamp,e=>e.startTimestamp);if(-1!==r&&i[r].moofOffset===s.moofOffset||i.splice(r+1,0,{moofOffset:s.moofOffset,startTimestamp:e.startTimestamp,endTimestamp:e.endTimestamp}),e.encryptionAuxInfo&&t.encryptionInfo){const i=yield Yr(this.reader,t.encryptionInfo,e.encryptionAuxInfo);for(let t=0;t<Math.min(e.samples.length,i.length);t++){const r=i[t];e.samples[t].encryption=r}}}return s})}readContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){if(!this.traverseBox(e))break}}*iterateContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){const t=e.filePos,i=Sr(e);if(!i)break;yield{boxInfo:i,slice:e},e.filePos=t+i.totalSize}}traverseBox(e){var t,i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F,A,M,D,N,O,L,z,U,q,W,j,K,X,$,G,Q,Y,J,Z,ee,te,ie;const re=e.filePos,ne=Sr(e);if(!ne)return!1;const se=e.filePos,ae=re+ne.totalSize;switch(ne.name){case"mdia":case"minf":case"dinf":case"mfra":case"edts":case"sinf":case"schi":case"wave":this.readContiguousBoxes(e.slice(se,ne.contentSize));break;case"mvhd":{const t=vl(e);e.skip(3),1===t?(e.skip(16),this.movieTimescale=Cl(e),this.movieDurationInTimescale=Rl(e)):(e.skip(8),this.movieTimescale=Cl(e),this.movieDurationInTimescale=Cl(e))}break;case"trak":{const t={id:-1,demuxer:this,trackBacking:null,disposition:V(H({},Ct),{primary:!1}),info:null,timescale:-1,durationInMovieTimescale:-1,durationInMediaTimescale:-1,rotation:0,internalCodecId:null,name:null,languageCode:We,sampleTableByteOffset:-1,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:0,editListOffset:0,encryptionInfo:null,encryptionAuxInfo:null,frmaCodecString:null};if(this.currentTrack=t,this.readContiguousBoxes(e.slice(se,ne.contentSize)),-1!==t.id&&-1!==t.timescale&&null!==t.info)if("video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new qr(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new Wr(e),this.tracks.push(t)}this.currentTrack=null}break;case"tkhd":{const t=this.currentTrack;if(!t)break;const i=vl(e),r=!!(1&Pl(e));if(t.disposition.default=r,0===i)e.skip(8),t.id=Cl(e),e.skip(4),t.durationInMovieTimescale=Cl(e);else{if(1!==i)throw new Error(`Incorrect track header version ${i}.`);e.skip(16),t.id=Cl(e),e.skip(4),t.durationInMovieTimescale=Rl(e)}e.skip(16);const n=[Pr(e),Pr(e),Ir(e),Pr(e),Pr(e),Ir(e),Pr(e),Pr(e),Ir(e)],s=le(Ve($r(n),90));oe(0===s||90===s||180===s||270===s),t.rotation=s}break;case"elst":{const t=this.currentTrack;if(!t)break;const i=vl(e);e.skip(3);let r=!1,n=0;const s=Cl(e);for(let a=0;a<s;a++){const s=1===i?Rl(e):Cl(e),a=1===i?Fl(e):El(e),o=Pr(e);if(r){Pt._warn("Unsupported edit list: multiple edits are not currently supported. Only using first edit.");break}if(-1!==a){if(1!==o){Pt._warn("Unsupported edit list entry: media rate must be 1.");break}t.editListPreviousSegmentDurations=n,t.editListOffset=a,r=!0}else n+=s}}break;case"mdhd":{const t=this.currentTrack;if(!t)break;const i=vl(e);e.skip(3),0===i?(e.skip(8),t.timescale=Cl(e),t.durationInMediaTimescale=Cl(e)):1===i&&(e.skip(16),t.timescale=Cl(e),t.durationInMediaTimescale=Rl(e));let r=Sl(e);if(r>0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;Ge(t.languageCode)||(t.languageCode=We)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=Nl(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:H({},Pe),avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=re,this.readContiguousBoxes(e.slice(se,ne.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=vl(e);e.skip(3);const r=Cl(e);for(let n=0;n<r;n++){const r=e.filePos,n=Sr(e);if(!n)break;t.internalCodecId=n.name;const s=n.name.toLowerCase();if("video"===t.info.type){e.skip(24),t.info.width=Sl(e),t.info.height=Sl(e),t.info.squarePixelWidth=t.info.width,t.info.squarePixelHeight=t.info.height,e.skip(50),t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const i="encv"===s?t.frmaCodecString:s;t.frmaCodecString=null,"avc1"===i||"avc3"===i?(t.info.codec="avc",t.info.avcType="avc1"===i?1:3):"hvc1"===i||"hev1"===i?t.info.codec="hevc":"vp08"===i?t.info.codec="vp8":"vp09"===i?t.info.codec="vp9":"av01"===i?t.info.codec="av1":Zi.includes(s)?(t.info.codec="prores",t.info.proresFormat=s):null===i?Pt._warn("Unknown encrypted video codec due to missing frma box."):Pt._warn(`Unsupported video codec (sample entry type '${n.name}').`)}else{e.skip(8);const a=Sl(e);e.skip(6);let o=Sl(e),l=Sl(e);e.skip(4);let c=Cl(e)/65536,u=null;0===i&&a>0&&(1===a?(e.skip(4),l=8*Cl(e),e.skip(8)):2===a&&(e.skip(4),c=Dl(e),o=Cl(e),e.skip(4),l=Cl(e),u=Cl(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=c,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const d="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===d);else if("opus"===d)t.info.codec="opus",t.info.sampleRate=nr;else if("flac"===d)t.info.codec="flac";else if("ulaw"===d)t.info.codec="ulaw";else if("alaw"===d)t.info.codec="alaw";else if("ac-3"===d)t.info.codec="ac3";else if("ec-3"===d)t.info.codec="eac3";else if(er.includes(d))t.info.codec="dts",t.info.dtsFormat=d;else if("twos"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(Pt._warn(`Unsupported sample size ${l} for codec 'twos'.`),t.info.codec=null);else if("sowt"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec="pcm-s16":(Pt._warn(`Unsupported sample size ${l} for codec 'sowt'.`),t.info.codec=null);else if("raw "===d)t.info.codec="pcm-u8";else if("in24"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(Pt._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(Pt._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(Pt._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(Pt._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=l+7>>3,i=Boolean(1&u),r=Boolean(2&u),n=4&u?-1:0;l>0&&l<=64&&(i?32===l&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):n&1<<e-1?1===e?t.info.codec="pcm-s8":2===e?t.info.codec=r?"pcm-s16be":"pcm-s16":3===e?t.info.codec=r?"pcm-s24be":"pcm-s24":4===e&&(t.info.codec=r?"pcm-s32be":"pcm-s32"):1===e&&(t.info.codec="pcm-u8")),null===t.info.codec&&Pt._warn("Unsupported PCM format.")}else null===d?Pt._warn("Unknown encrypted audio codec due to missing frma box."):Pt._warn(`Unsupported audio codec (sample entry type '${n.name}').`)}e.filePos=r+n.totalSize}}break;case"frma":{const t=this.currentTrack;if(!t)break;const i=Nl(e,4).toLowerCase();t.frmaCodecString=i}break;case"schm":{const t=this.currentTrack;if(!t)break;e.skip(4);const i=Nl(e,4);"cenc"===i||"cens"===i||"cbcs"===i?t.encryptionInfo={scheme:i,defaultKid:null,defaultIsProtected:null,defaultPerSampleIvSize:null,defaultConstantIv:null,defaultCryptByteBlock:null,defaultSkipByteBlock:null}:Pt._warn(`Unsupported encryption scheme '${i}'.`)}break;case"tenc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=vl(e);e.skip(3),e.skip(1);const r=vl(e);if(i>0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==vl(e),t.encryptionInfo.defaultPerSampleIvSize=vl(e),t.encryptionInfo.defaultKid=Be(Tl(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=vl(e),r=new Uint8Array(16);r.set(Tl(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(oe(t.info),0===ne.contentSize)break;t.info.codecDescription=Tl(e,ne.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(oe(t.info),0===ne.contentSize)break;t.info.codecDescription=Tl(e,ne.contentSize)}break;case"vpcC":{const i=this.currentTrack;if(!i)break;oe("video"===(null==(t=i.info)?void 0:t.type)),e.skip(4);const r=vl(e),n=vl(e),s=vl(e),a=s>>4,o=s>>1&7,l=1&s,c=vl(e),u=vl(e),d=vl(e);i.info.vp9CodecInfo={profile:r,level:n,bitDepth:a,chromaSubsampling:o,videoFullRangeFlag:l,colourPrimaries:c,transferCharacteristics:u,matrixCoefficients:d}}break;case"av1C":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(i=t.info)?void 0:i.type)),e.skip(1);const o=vl(e),l=o>>5,c=31&o,u=vl(e),d=u>>7,h=u>>6&1,f=u>>4&1,m=u>>3&1,p=u>>2&1,g=3&u,k=2===l&&h?u>>5&1?12:10:h?10:8;e.skip(1);const y=Tl(e,ne.contentSize-4),b=yi(y);t.info.av1CodecInfo={profile:l,level:c,tier:d,bitDepth:k,monochrome:f,chromaSubsamplingX:m,chromaSubsamplingY:p,chromaSamplePosition:g,videoFullRangeFlag:null!=(r=null==b?void 0:b.videoFullRangeFlag)?r:0,colourPrimaries:null!=(n=null==b?void 0:b.colourPrimaries)?n:2,transferCharacteristics:null!=(s=null==b?void 0:b.transferCharacteristics)?s:2,matrixCoefficients:null!=(a=null==b?void 0:b.matrixCoefficients)?a:2}}break;case"colr":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(o=t.info)?void 0:o.type));const i=Nl(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=Sl(e),n=Sl(e),s=Sl(e);let a;"nclx"===i&&(a=Boolean(128&vl(e))),t.info.colorSpace={primaries:ye[r],transfer:Te[n],matrix:we[s],fullRange:a}}break;case"pasp":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(l=t.info)?void 0:l.type));const i=Cl(e),r=Cl(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==(null==(c=t.info)?void 0:c.type))break;e.skip(4);oe(3===vl(e)),xr(e),e.skip(2);const i=vl(e),r=0!==(64&i),n=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=vl(e);e.skip(t)}n&&e.skip(2);oe(4===vl(e));const s=xr(e),a=e.filePos,o=vl(e);if(64===o||103===o?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===o,objectType:null}):105===o||107===o?t.info.codec="mp3":221===o?t.info.codec="vorbis":169===o?t.info.codec="dts":Pt._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-a){oe(5===vl(e));const i=xr(e);if(t.info.codecDescription=Tl(e,i),"aac"===t.info.codec){const e=Rt(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(u=t.info)?void 0:u.type)),t.info.pcmLittleEndian=!!(255&Sl(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(d=t.info)?void 0:d.type)),e.skip(4);const i=vl(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=vl(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(h=t.info)?void 0:h.type)),e.skip(1);const i=vl(e),r=Sl(e),n=Cl(e),s=Il(e),a=vl(e);let o;o=0!==a?Tl(e,2+i):new Uint8Array(0);const l=new Uint8Array(19+o.byteLength),c=new DataView(l.buffer);c.setUint32(0,1332770163,!1),c.setUint32(4,1214603620,!1),c.setUint8(8,1),c.setUint8(9,i),c.setUint16(10,r,!0),c.setUint32(12,n,!0),c.setInt16(16,s,!0),c.setUint8(18,a),l.set(o,19),t.info.codecDescription=l,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(f=t.info)?void 0:f.type)),e.skip(4);const i=127,r=128,n=e.filePos;for(;e.filePos<ae;){const n=vl(e),s=Pl(e);if((n&i)===Si.STREAMINFO){e.skip(10);const i=Cl(e),r=i>>>12,n=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=n,e.skip(20)}else e.skip(s);if(n&r)break}const s=e.filePos;e.filePos=n;const a=Tl(e,s-n),o=new Uint8Array(4+a.byteLength);new DataView(o.buffer).setUint32(0,1716281667,!1),o.set(a,4),t.info.codecDescription=o}break;case"dac3":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(m=t.info)?void 0:m.type));const i=Tl(e,3),r=new Bt(i),n=r.readBits(2);r.skipBits(8);const s=r.readBits(3),a=r.readBits(1);n<3&&(t.info.sampleRate=Mt[n]),t.info.numberOfChannels=xi[s]+a}break;case"dec3":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(p=t.info)?void 0:p.type));const i=(e=>{if(e.length<2)return null;const t=new Bt(e),i=t.readBits(13),r=t.readBits(3),n=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),a=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let l=0;o>0?l=t.readBits(9):t.skipBits(1),n.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:a,numDepSub:o,chanLoc:l})}return 0===n.length?null:{dataRate:i,substreams:n}})(Tl(e,ne.contentSize));if(!i){Pt._warn("Invalid dec3 box contents, ignoring.");break}const r=Ri(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=Fi(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(g=t.info)?void 0:g.type));const i=(e=>{if(e.length<20)return null;const t=me(e),i=t.getUint32(0);if(0===i)return null;const r=new Bt(e);r.seekToByte(13);const n=r.readBits(2);r.skipBits(5);const s=r.readBits(1),a=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let l=null;return 0!==o?l=ji(o):a<Ni.length&&(l=Ni[a]+s),{sampleRate:i,maxBitrate:t.getUint32(4),avgBitrate:t.getUint32(8),pcmSampleDepth:e[12],sampleCount:Ui[n],channelLayout:o,numberOfChannels:l}})(Tl(e,Math.min(ne.contentSize,20)));if(!i){Pt._warn("Invalid ddts box contents, ignoring.");break}t.info.sampleRate=i.sampleRate,null!==i.numberOfChannels&&(t.info.numberOfChannels=i.numberOfChannels)}break;case"stts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);let r=0,n=0;for(let s=0;s<i;s++){const i=Cl(e),s=Cl(e);t.sampleTable.sampleTimingEntries.push({startIndex:r,startDecodeTimestamp:n,count:i,delta:s}),r+=i,n+=i*s}}break;case"ctts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);let r=0;for(let n=0;n<i;n++){const i=Cl(e),n=El(e);t.sampleTable.sampleCompositionTimeOffsets.push({startIndex:r,count:i,offset:n}),r+=i}}break;case"stsz":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e),r=Cl(e);if(0===i)for(let n=0;n<r;n++){const i=Cl(e);t.sampleTable.sampleSizes.push(i)}else t.sampleTable.sampleSizes.push(i)}break;case"stz2":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),e.skip(3);const i=vl(e),r=Cl(e),n=Tl(e,Math.ceil(r*i/8)),s=new Bt(n);for(let e=0;e<r;e++){const e=s.readBits(i);t.sampleTable.sampleSizes.push(e)}}break;case"stss":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),t.sampleTable.keySampleIndices=[];const i=Cl(e);for(let r=0;r<i;r++){const i=Cl(e)-1;t.sampleTable.keySampleIndices.push(i)}0!==t.sampleTable.keySampleIndices[0]&&t.sampleTable.keySampleIndices.unshift(0)}break;case"stsc":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let n=0;n<i;n++){const i=Cl(e)-1,r=Cl(e),n=Cl(e);t.sampleTable.sampleToChunk.push({startSampleIndex:-1,startChunkIndex:i,samplesPerChunk:r,sampleDescriptionIndex:n})}let r=0;for(let e=0;e<t.sampleTable.sampleToChunk.length;e++)if(t.sampleTable.sampleToChunk[e].startSampleIndex=r,e<t.sampleTable.sampleToChunk.length-1){r+=(t.sampleTable.sampleToChunk[e+1].startChunkIndex-t.sampleTable.sampleToChunk[e].startChunkIndex)*t.sampleTable.sampleToChunk[e].samplesPerChunk}}break;case"stco":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let r=0;r<i;r++){const i=Cl(e);t.sampleTable.chunkOffsets.push(i)}}break;case"co64":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let r=0;r<i;r++){const i=Rl(e);t.sampleTable.chunkOffsets.push(i)}}break;case"mvex":this.isFragmented=!0,this.readContiguousBoxes(e.slice(se,ne.contentSize));break;case"mehd":{const t=vl(e);e.skip(3);const i=1===t?Rl(e):Cl(e);this.movieDurationInTimescale=i}break;case"trex":{e.skip(4);const t=Cl(e),i=Cl(e),r=Cl(e),n=Cl(e),s=Cl(e);this.fragmentTrackDefaults.push({trackId:t,defaultSampleDescriptionIndex:i,defaultSampleDuration:r,defaultSampleSize:n,defaultSampleFlags:s})}break;case"tfra":{const t=vl(e);e.skip(3);const i=Cl(e),r=this.tracks.find(e=>e.id===i);if(!r)break;const n=Cl(e),s=(12&n)>>2,a=3&n,o=[vl,Sl,Pl,Cl],l=o[(48&n)>>4],c=o[s],u=o[a],d=Cl(e);for(let h=0;h<d;h++){const i=1===t?Rl(e):Cl(e),n=1===t?Rl(e):Cl(e);l(e),c(e),u(e),r.fragmentLookupTable.push({timestamp:i,moofOffset:n})}r.fragmentLookupTable.sort((e,t)=>e.timestamp-t.timestamp);for(let e=0;e<r.fragmentLookupTable.length-1;e++){const t=r.fragmentLookupTable[e],i=r.fragmentLookupTable[e+1];t.timestamp===i.timestamp&&(r.fragmentLookupTable.splice(e+1,1),e--)}}break;case"moof":this.currentFragment={moofOffset:re,moofSize:ne.totalSize,implicitBaseDataOffset:re,trackData:new Map,psshBoxes:[]},this.readContiguousBoxes(e.slice(se,ne.contentSize)),this.lastReadFragment=this.currentFragment,this.currentFragment=null;break;case"traf":if(oe(this.currentFragment),this.readContiguousBoxes(e.slice(se,ne.contentSize)),this.currentTrack){const e=this.currentFragment.trackData.get(this.currentTrack.id);e:if(e){if(0===e.samples.length){this.currentFragment.trackData.delete(this.currentTrack.id);break e}e.presentationTimestamps=e.samples.map((e,t)=>({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let n=0;n<e.presentationTimestamps.length;n++){const t=e.presentationTimestamps[n],i=e.samples[t.sampleIndex];if(null===e.firstKeyFrameTimestamp&&i.isKeyFrame&&(e.firstKeyFrameTimestamp=i.presentationTimestamp),n<e.presentationTimestamps.length-1){const r=e.presentationTimestamps[n+1].presentationTimestamp-t.presentationTimestamp;i.duration=r}}const t=e.samples[e.presentationTimestamps[0].sampleIndex],i=e.samples[ce(e.presentationTimestamps).sampleIndex];e.startTimestamp=t.presentationTimestamp,e.endTimestamp=i.presentationTimestamp+i.duration;const{currentFragmentState:r}=this.currentTrack;oe(r),null!==r.startTimestamp&&(Xr(e,r.startTimestamp),e.startTimestampIsFinal=!0),r.encryptionAuxInfo&&!e.samples[0].encryption&&(e.encryptionAuxInfo=r.encryptionAuxInfo)}this.currentTrack.currentFragmentState=null,this.currentTrack=null}break;case"pssh":{if(null==(k=this.input._formatOptions.isobmff)?void 0:k._suppressPsshParsing)break;const t=vr(Tl(e,ne.contentSize));this.currentFragment?this.currentFragment.psshBoxes.push(t):this.currentTrack||this.psshBoxes.push(t)}break;case"tfhd":{oe(this.currentFragment),e.skip(1);const t=Pl(e),i=Boolean(1&t),r=Boolean(2&t),n=Boolean(8&t),s=Boolean(16&t),a=Boolean(32&t),o=Boolean(65536&t),l=Boolean(131072&t),c=Cl(e),u=this.tracks.find(e=>e.id===c);if(!u)break;const d=this.fragmentTrackDefaults.find(e=>e.trackId===c);this.currentTrack=u,u.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:null!=(y=null==d?void 0:d.defaultSampleDescriptionIndex)?y:null,defaultSampleDuration:null!=(b=null==d?void 0:d.defaultSampleDuration)?b:null,defaultSampleSize:null!=(T=null==d?void 0:d.defaultSampleSize)?T:null,defaultSampleFlags:null!=(v=null==d?void 0:d.defaultSampleFlags)?v:null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=Rl(e):l&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=Cl(e)),n&&(u.currentFragmentState.defaultSampleDuration=Cl(e)),s&&(u.currentFragmentState.defaultSampleSize=Cl(e)),a&&(u.currentFragmentState.defaultSampleFlags=Cl(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;oe(t.currentFragmentState);const i=vl(e);e.skip(3);const r=0===i?Cl(e):Rl(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;oe(this.currentFragment),oe(t.currentFragmentState);const i=vl(e),r=Pl(e),n=Boolean(1&r),s=Boolean(4&r),a=Boolean(256&r),o=Boolean(512&r),l=Boolean(1024&r),c=Boolean(2048&r),u=Cl(e);let d=null;n&&(d=El(e));let h,f=null;s&&(f=Cl(e)),this.currentFragment.trackData.has(t.id)?(h=this.currentFragment.trackData.get(t.id),null!==d&&(h.currentOffset=t.currentFragmentState.baseDataOffset+d)):(h={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(null!=d?d:0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,h));for(let m=0;m<u;m++){let r,n,s;a?r=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleDuration),r=t.currentFragmentState.defaultSampleDuration),o?n=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleSize),n=t.currentFragmentState.defaultSampleSize),l?s=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleFlags),s=t.currentFragmentState.defaultSampleFlags),0===m&&null!==f&&(s=f);let u=0;c&&(u=0===i?Cl(e):El(e));const d=!(65536&s);h.samples.push({presentationTimestamp:h.currentTimestamp+u,duration:r,byteOffset:h.currentOffset,byteSize:n,isKeyFrame:d,encryption:null}),h.currentOffset+=n,h.currentTimestamp+=r}this.currentFragment.implicitBaseDataOffset=h.currentOffset}break;case"saiz":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;e.skip(1);if(1&Pl(e)){const i=Nl(e,4),r=Cl(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const i=vl(e),r=Cl(e);let n=null;0===i&&r>0&&(n=Tl(e,r));const s=Qr(t);s.defaultSampleInfoSize=i,s.sampleSizes=n,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=vl(e);if(1&Pl(e)){const i=Nl(e,4),r=Cl(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=Cl(e);if(0===r)break;r>1&&Pt._warn("Multiple saio entries are not supported; using the first offset only.");let n=0===i?Cl(e):Number(Rl(e));this.currentFragment&&(n+=this.currentFragment.moofOffset);Qr(t).offset=n}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;oe(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=Pl(e),n=Boolean(2&r),s=Cl(e),a=t.encryptionInfo.defaultPerSampleIvSize;oe(null!==a);for(let o=0;o<Math.min(s,i.samples.length);o++){const r=new Uint8Array(16);a>0?r.set(Tl(e,a),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(n){const t=Sl(e);s=[];for(let i=0;i<t;i++){const t=Sl(e),i=Cl(e);s.push({clearLen:t,protectedLen:i})}}i.samples[o].encryption={iv:r,subsamples:s}}}break;case"udta":{const t=this.iterateContiguousBoxes(e.slice(se,ne.contentSize));for(const{boxInfo:e,slice:i}of t){if("meta"!==e.name&&!this.currentTrack){const t=i.filePos;null!=(w=this.metadataTags).raw||(w.raw={}),"\xa9"===e.name[0]?null!=(S=this.metadataTags.raw)[P=e.name]||(S[P]=Cr(i)):null!=(I=this.metadataTags.raw)[x=e.name]||(I[x]=Tl(i,e.contentSize)),i.filePos=t}switch(e.name){case"meta":i.skip(-e.headerSize),this.traverseBox(i);break;case"\xa9nam":case"name":this.currentTrack?this.currentTrack.name=pe.decode(Tl(i,e.contentSize)):null!=(C=this.metadataTags).title||(C.title=Cr(i));break;case"\xa9des":this.currentTrack||null!=(B=this.metadataTags).description||(B.description=Cr(i));break;case"\xa9ART":this.currentTrack||null!=(E=this.metadataTags).artist||(E.artist=Cr(i));break;case"\xa9alb":this.currentTrack||null!=(_=this.metadataTags).album||(_.album=Cr(i));break;case"albr":this.currentTrack||null!=(R=this.metadataTags).albumArtist||(R.albumArtist=Cr(i));break;case"\xa9gen":this.currentTrack||null!=(F=this.metadataTags).genre||(F.genre=Cr(i));break;case"\xa9day":if(!this.currentTrack){const e=new Date(Cr(i));Number.isNaN(e.getTime())||null!=(A=this.metadataTags).date||(A.date=e)}break;case"\xa9cmt":this.currentTrack||null!=(M=this.metadataTags).comment||(M.comment=Cr(i));break;case"\xa9lyr":this.currentTrack||null!=(D=this.metadataTags).lyrics||(D.lyrics=Cr(i))}}}break;case"meta":{if(this.currentTrack)break;const t=0!==Cl(e);this.currentMetadataKeys=new Map,t?this.readContiguousBoxes(e.slice(se,ne.contentSize)):this.readContiguousBoxes(e.slice(se+4,ne.contentSize-4)),this.currentMetadataKeys=null}break;case"keys":{if(!this.currentMetadataKeys)break;e.skip(4);const t=Cl(e);for(let i=0;i<t;i++){const t=Cl(e);e.skip(4);const r=pe.decode(Tl(e,t-8));this.currentMetadataKeys.set(i+1,r)}}break;case"ilst":{if(!this.currentMetadataKeys)break;const t=this.iterateContiguousBoxes(e.slice(se,ne.contentSize));for(const{boxInfo:e,slice:i}of t){let t=e.name;const r=(t.charCodeAt(0)<<24)+(t.charCodeAt(1)<<16)+(t.charCodeAt(2)<<8)+t.charCodeAt(3);this.currentMetadataKeys.has(r)&&(t=this.currentMetadataKeys.get(r));const n=Br(i);switch(null!=(N=this.metadataTags).raw||(N.raw={}),null!=(O=this.metadataTags.raw)[t]||(O[t]=n),t){case"\xa9nam":case"titl":case"com.apple.quicktime.title":case"title":"string"===typeof n&&(null!=(L=this.metadataTags).title||(L.title=n));break;case"\xa9des":case"desc":case"dscp":case"com.apple.quicktime.description":case"description":"string"===typeof n&&(null!=(z=this.metadataTags).description||(z.description=n));break;case"\xa9ART":case"com.apple.quicktime.artist":case"artist":"string"===typeof n&&(null!=(U=this.metadataTags).artist||(U.artist=n));break;case"\xa9alb":case"albm":case"com.apple.quicktime.album":case"album":"string"===typeof n&&(null!=(q=this.metadataTags).album||(q.album=n));break;case"aART":case"album_artist":"string"===typeof n&&(null!=(W=this.metadataTags).albumArtist||(W.albumArtist=n));break;case"\xa9cmt":case"com.apple.quicktime.comment":case"comment":"string"===typeof n&&(null!=(j=this.metadataTags).comment||(j.comment=n));break;case"\xa9gen":case"gnre":case"com.apple.quicktime.genre":case"genre":"string"===typeof n&&(null!=(K=this.metadataTags).genre||(K.genre=n));break;case"\xa9lyr":case"lyrics":"string"===typeof n&&(null!=(X=this.metadataTags).lyrics||(X.lyrics=n));break;case"\xa9day":case"rldt":case"com.apple.quicktime.creationdate":case"date":if("string"===typeof n){const e=new Date(n);Number.isNaN(e.getTime())||null!=($=this.metadataTags).date||($.date=e)}break;case"covr":case"com.apple.quicktime.artwork":n instanceof It?(null!=(G=this.metadataTags).images||(G.images=[]),this.metadataTags.images.push({data:n.data,kind:"coverFront",mimeType:n.mimeType})):n instanceof Uint8Array&&(null!=(Q=this.metadataTags).images||(Q.images=[]),this.metadataTags.images.push({data:n,kind:"coverFront",mimeType:"image/*"}));break;case"track":if("string"===typeof n){const e=n.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=(Y=this.metadataTags).trackNumber||(Y.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(J=this.metadataTags).tracksTotal||(J.tracksTotal=i))}break;case"trkn":if(n instanceof Uint8Array&&n.length>=6){const e=me(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(Z=this.metadataTags).trackNumber||(Z.trackNumber=t)),i>0&&(null!=(ee=this.metadataTags).tracksTotal||(ee.tracksTotal=i))}break;case"disc":case"disk":if(n instanceof Uint8Array&&n.length>=6){const e=me(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(te=this.metadataTags).discNumber||(te.discNumber=t)),i>0&&(null!=(ie=this.metadataTags).discsTotal||(ie.discsTotal=i))}}}}}return e.filePos=ae,!0}}class Ur{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){var e;const t=this.internalTrack;if(t.durationInMediaTimescale<=0)return null;oe(t.trackBacking);const i=yield t.trackBacking.getFirstPacket({metadataOnly:!0});return(null!=(e=null==i?void 0:i.timestamp)?e:0)+t.durationInMediaTimescale/t.timescale})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getFirstPacket(e){return Y(this,null,function*(){const t=yield this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)})}mapTimestampIntoTimescale(e){return He(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}getPacket(e,t){return Y(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=Hr(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return Gr(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=Re(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.packetToSampleIndex.get(e);if(void 0!==i)return this.fetchPacketForSampleIndex(i+1,t);const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1<t.samples.length)return{sampleIndex:r.sampleIndex+1,correctSampleFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{sampleIndex:0,correctSampleFound:!0}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}getKeyPacket(e,t){return Y(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=Vr(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return Gr(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=Ne(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s})}getNextKeyPacket(e,t){return Y(this,null,function*(){const i=this.packetToSampleIndex.get(e);if(void 0!==i){const e=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=Kr(e,i);return this.fetchPacketForSampleIndex(r,t)}const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return oe(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}fetchPacketForSampleIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=jr(i,e);if(!r)return null;let n;if(t.metadataOnly)n=br;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(ct(t)&&(t=yield t),!t)return null;if(n=Tl(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=yield Yr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);e<i.length&&(t=i[e])}null!=t||(t=Jr(this.internalTrack.encryptionInfo)),t&&(n=yield Zr(this.internalTrack,t,n,null))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,a=r.duration/this.internalTrack.timescale,o=new Tr(n,r.isKeyFrame?"key":"delta",s,a,e,r.sampleSize);return this.packetToSampleIndex.set(o,e),o})}fetchPacketInFragment(e,t,i){return Y(this,null,function*(){var r;if(-1===t)return null;const n=e.trackData.get(this.internalTrack.id).samples[t];let s;if(oe(n),i.metadataOnly)s=br;else{let t=this.internalTrack.demuxer.reader.requestSlice(n.byteOffset,n.byteSize);if(ct(t)&&(t=yield t),!t)return null;if(s=Tl(t,n.byteSize),this.internalTrack.encryptionInfo){const t=null!=(r=n.encryption)?r:Jr(this.internalTrack.encryptionInfo);t&&(s=yield Zr(this.internalTrack,t,s,e))}}const a=(n.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,o=n.duration/this.internalTrack.timescale,l=new Tr(s,n.isKeyFrame?"key":"delta",a,o,e.moofOffset+t,n.byteSize);return this.packetToFragmentLocation.set(l,{fragment:e,sampleIndex:t}),l})}performFragmentedLookup(e,t,i,r,n){return Y(this,null,function*(){var s,a,o;const l=this.internalTrack.demuxer;let c=null,u=null,d=-1;if(e){const{sampleIndex:i,correctSampleFound:r}=t(e);if(r)return this.fetchPacketInFragment(e,i,n);-1!==i&&(u=e,d=i)}const h=Re(this.internalTrack.fragmentLookupTable,i,e=>e.timestamp),f=-1!==h?this.internalTrack.fragmentLookupTable[h]:null,m=Re(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),p=-1!==m?this.internalTrack.fragmentPositionCache[m]:null,g=Math.max(null!=(s=null==f?void 0:f.moofOffset)?s:0,null!=(a=null==p?void 0:p.moofOffset)?a:0)||null;let k;for(e?null===g||e.moofOffset>=g?(k=e.moofOffset+e.moofSize,c=e):k=g:k=null!=g?g:0;;){if(c){const e=c.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=l.reader.requestSliceRange(k,8,16);if(ct(e)&&(e=yield e),!e)break;const i=k,s=Sr(e);if(!s)break;if("moof"===s.name){c=yield l.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(c);if(r)return this.fetchPacketInFragment(c,e,n);-1!==e&&(u=c,d=e)}k=i+s.totalSize}if(f&&(!u||u.moofOffset<f.moofOffset)){const e=this.internalTrack.fragmentLookupTable[h-1];oe(!e||e.timestamp<f.timestamp);const i=null!=(o=null==e?void 0:e.timestamp)?o:-1/0;return this.performFragmentedLookup(null,t,i,r,n)}return u?this.fetchPacketInFragment(u,d,n):null})}}class qr extends Ur{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.rotation}getColorSpace(){return Y(this,null,function*(){var e,t,i,r;const n=yield this.getDecoderConfig();return n?{primaries:null==(e=n.colorSpace)?void 0:e.primaries,transfer:null==(t=n.colorSpace)?void 0:t.transfer,matrix:null==(i=n.colorSpace)?void 0:i.matrix,fullRange:null==(r=n.colorSpace)?void 0:r.fullRange}:this.internalTrack.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)})}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e,t,i,r,n,s,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=yield this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&bi(e.data)}}else{const e=yield this.getFirstPacket({}),t=e&&yi(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const t=yield this.getFirstPacket({}),i=t&&gi(t.data);i&&(this.internalTrack.info.vp9CodecInfo=V(H({},null!=(e=this.internalTrack.info.vp9CodecInfo)?e:i),{videoFullRangeFlag:i.videoFullRangeFlag,colourPrimaries:i.colourPrimaries,transferCharacteristics:i.transferCharacteristics,matrixCoefficients:i.matrixCoefficients}))}else{const e=yield this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&ni(e.data)}else{const e=yield this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&$t(e.data)}if(!Se(this.internalTrack.info.colorSpace)){const e=ir(this.internalTrack.info);null!=(t=this.internalTrack.info.colorSpace).primaries||(t.primaries=e.primaries),null!=(i=this.internalTrack.info.colorSpace).transfer||(i.transfer=e.transfer),null!=(r=this.internalTrack.info.colorSpace).matrix||(r.matrix=e.matrix),null!=(n=this.internalTrack.info.colorSpace).fullRange||(n.fullRange=e.fullRange)}const o={codec:tr(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(s=this.internalTrack.info.codecDescription)?s:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class Wr extends Ur{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Wi(e.data)}return{codec:rr(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const Hr=(e,t)=>{if(e.presentationTimestamps){const i=Re(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=Re(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},Vr=(e,t)=>{var i;if(!e.keySampleIndices)return Hr(e,t);if(e.presentationTimestamps){const i=Re(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==_e(e.keySampleIndices,i,e=>e))return i}return-1}{const r=Hr(e,t),n=Re(e.keySampleIndices,r,e=>e);return null!=(i=e.keySampleIndices[n])?i:-1}},jr=(e,t)=>{const i=Re(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let n=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=Re(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),a=e.sampleCompositionTimeOffsets[s];a&&t-a.startIndex<a.count&&(n+=a.offset);const o=e.sampleSizes[Math.min(t,e.sampleSizes.length-1)],l=Re(e.sampleToChunk,t,e=>e.startSampleIndex),c=e.sampleToChunk[l];oe(c);const u=c.startChunkIndex+Math.floor((t-c.startSampleIndex)/c.samplesPerChunk),d=e.chunkOffsets[u],h=c.startSampleIndex+(u-c.startChunkIndex)*c.samplesPerChunk;let f=0,m=d;if(1===e.sampleSizes.length)m+=o*(t-h),f+=o*c.samplesPerChunk;else for(let g=h;g<h+c.samplesPerChunk;g++){const i=e.sampleSizes[g];g<t&&(m+=i),f+=i}let p=r.delta;if(e.presentationTimestamps){const i=e.presentationTimestampIndexMap[t];if(oe(void 0!==i),i<e.presentationTimestamps.length-1){p=e.presentationTimestamps[i+1].presentationTimestamp-n}}return{presentationTimestamp:n,duration:p,sampleOffset:m,sampleSize:o,chunkOffset:d,chunkSize:f,isKeyFrame:!e.keySampleIndices||-1!==_e(e.keySampleIndices,t,e=>e)}},Kr=(e,t)=>{var i;if(!e.keySampleIndices)return t+1;const r=Re(e.keySampleIndices,t,e=>e);return null!=(i=e.keySampleIndices[r+1])?i:-1},Xr=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},$r=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},Gr=e=>0===e.sampleSizes.length,Qr=e=>{var t,i,r;return e.currentFragmentState?null!=(i=(t=e.currentFragmentState).encryptionAuxInfo)?i:t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}:null!=(r=e.encryptionAuxInfo)?r:e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}},Yr=(e,t,i)=>Y(null,null,function*(){if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{oe(i.sampleSizes);for(let e=0;e<i.sampleCount;e++)r+=i.sampleSizes[e]}let n=e.requestSlice(i.offset,r);if(ct(n)&&(n=yield n),!n)throw new Error("Failed to read auxiliary encryption info.");const s=t.defaultPerSampleIvSize;oe(null!==s);const a=[];for(let e=0;e<i.sampleCount;e++){const r=i.defaultSampleInfoSize>0?i.defaultSampleInfoSize:i.sampleSizes[e],o=new Uint8Array(16);s>0?o.set(Tl(n,s),0):o.set(t.defaultConstantIv,0);let l=null;if(r>s){const e=Sl(n);l=[];for(let t=0;t<e;t++){const e=Sl(n),t=Cl(n);l.push({clearLen:e,protectedLen:t})}}a.push({iv:o,subsamples:l})}return i.resolved=a,a}),Jr=e=>e.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,Zr=(e,t,i,r)=>Y(null,null,function*(){var n;oe(e.encryptionInfo);const s=e.encryptionInfo;oe(null!==s.defaultKid);const a=s.defaultKid;let o;const l=e.demuxer.decryptionKeyCache.get(a);if(l)o=yield l;else{if(!(null==(n=e.demuxer.input._formatOptions.isobmff)?void 0:n.resolveKeyId))throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=Y(null,null,function*(){let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(a));for(let e=0;e<t.length-1;e++)for(let i=e+1;i<t.length;i++)wr(t[e],t[i])&&(t.splice(i,1),i--)}const i=yield e.demuxer.input._formatOptions.isobmff.resolveKeyId({keyId:a,psshBoxes:t});if(!("string"===typeof i&&32===i.length&&Ce.test(i)||i instanceof Uint8Array&&16===i.byteLength))throw new TypeError("resolveKeyId must return a 32-character hex string or a 16-byte Uint8Array containing the decryption key.");return i instanceof Uint8Array?i:(e=>{oe(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;i<e.length;i+=2)t[i/2]=parseInt(e.slice(i,i+2),16);return t})(i)});e.demuxer.decryptionKeyCache.set(a,t),o=yield t}return"cenc"===s.scheme||"cens"===s.scheme?en(o,s,t,i):tn(o,s,t,i)}),en=(e,t,i,r)=>Y(null,null,function*(){const n=new Uint8Array(16);n.set(i.iv,0);const s=yield crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),a=e=>Y(null,null,function*(){const t=yield crypto.subtle.decrypt({name:"AES-CTR",counter:n,length:64},s,e);return new Uint8Array(t)});if(!i.subsamples)return a(r);oe(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=rn(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let l=0;for(const e of o)for(const t of e.perSubsample)l+=t.length;const c=new Uint8Array(l);let u=0;for(const e of o)for(const t of e.perSubsample)c.set(r.subarray(t.offset,t.offset+t.length),u),u+=t.length;const d=yield a(c),h=new Uint8Array(r);let f=0;for(const e of o)for(const t of e.perSubsample)h.set(d.subarray(f,f+t.length),t.offset),f+=t.length;return h}),tn=(e,t,i,r)=>{const n=new Lr;n.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,a=t.defaultSkipByteBlock;if(oe(null!==s&&null!==a),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i<t;i++){const t=16*i;n.in.set(r.subarray(t,t+16)),n.decrypt(),e.set(n.out,t)}return e}if(0===s&&0===a)throw new Error("cbcs with subsamples requires pattern encryption.");const o=new Uint8Array(r),l=rn(i.subsamples,s,a),c=new DataView(i.iv.buffer,i.iv.byteOffset,16);for(const u of l){n.iv[0]=c.getUint32(0,!1),n.iv[1]=c.getUint32(4,!1),n.iv[2]=c.getUint32(8,!1),n.iv[3]=c.getUint32(12,!1);for(const e of u.perSubsample){const t=e.length/16;for(let i=0;i<t;i++){const t=e.offset+16*i;n.in.set(r.subarray(t,t+16)),n.decrypt(),o.set(n.out,t)}}}return o},rn=(e,t,i)=>{const r=[],n=0!==t||0!==i;let s=0;for(const a of e){s+=a.clearLen;const e=[];if(n){let r=a.protectedLen,n=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:n,length:s}),n+=s,r-=s;const a=Math.min(16*i,r);n+=a,r-=a}s+=a.protectedLen}else a.protectedLen>0&&e.push({offset:s,length:a.protectedLen}),s+=a.protectedLen;r.push({perSubsample:e})}return r};var nn,sn;(sn=nn||(nn={}))[sn.EBML=440786851]="EBML",sn[sn.EBMLVersion=17030]="EBMLVersion",sn[sn.EBMLReadVersion=17143]="EBMLReadVersion",sn[sn.EBMLMaxIDLength=17138]="EBMLMaxIDLength",sn[sn.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",sn[sn.DocType=17026]="DocType",sn[sn.DocTypeVersion=17031]="DocTypeVersion",sn[sn.DocTypeReadVersion=17029]="DocTypeReadVersion",sn[sn.Void=236]="Void",sn[sn.Segment=408125543]="Segment",sn[sn.SeekHead=290298740]="SeekHead",sn[sn.Seek=19899]="Seek",sn[sn.SeekID=21419]="SeekID",sn[sn.SeekPosition=21420]="SeekPosition",sn[sn.Duration=17545]="Duration",sn[sn.Info=357149030]="Info",sn[sn.TimestampScale=2807729]="TimestampScale",sn[sn.MuxingApp=19840]="MuxingApp",sn[sn.WritingApp=22337]="WritingApp",sn[sn.Tracks=374648427]="Tracks",sn[sn.TrackEntry=174]="TrackEntry",sn[sn.TrackNumber=215]="TrackNumber",sn[sn.TrackUID=29637]="TrackUID",sn[sn.TrackType=131]="TrackType",sn[sn.FlagEnabled=185]="FlagEnabled",sn[sn.FlagDefault=136]="FlagDefault",sn[sn.FlagForced=21930]="FlagForced",sn[sn.FlagOriginal=21934]="FlagOriginal",sn[sn.FlagHearingImpaired=21931]="FlagHearingImpaired",sn[sn.FlagVisualImpaired=21932]="FlagVisualImpaired",sn[sn.FlagCommentary=21935]="FlagCommentary",sn[sn.FlagLacing=156]="FlagLacing",sn[sn.Name=21358]="Name",sn[sn.Language=2274716]="Language",sn[sn.LanguageBCP47=2274717]="LanguageBCP47",sn[sn.CodecID=134]="CodecID",sn[sn.CodecPrivate=25506]="CodecPrivate",sn[sn.CodecDelay=22186]="CodecDelay",sn[sn.SeekPreRoll=22203]="SeekPreRoll",sn[sn.DefaultDuration=2352003]="DefaultDuration",sn[sn.Video=224]="Video",sn[sn.PixelWidth=176]="PixelWidth",sn[sn.PixelHeight=186]="PixelHeight",sn[sn.DisplayWidth=21680]="DisplayWidth",sn[sn.DisplayHeight=21690]="DisplayHeight",sn[sn.DisplayUnit=21682]="DisplayUnit",sn[sn.AlphaMode=21440]="AlphaMode",sn[sn.Audio=225]="Audio",sn[sn.SamplingFrequency=181]="SamplingFrequency",sn[sn.Channels=159]="Channels",sn[sn.BitDepth=25188]="BitDepth",sn[sn.SimpleBlock=163]="SimpleBlock",sn[sn.BlockGroup=160]="BlockGroup",sn[sn.Block=161]="Block",sn[sn.BlockAdditions=30113]="BlockAdditions",sn[sn.BlockMore=166]="BlockMore",sn[sn.BlockAdditional=165]="BlockAdditional",sn[sn.BlockAddID=238]="BlockAddID",sn[sn.BlockDuration=155]="BlockDuration",sn[sn.ReferenceBlock=251]="ReferenceBlock",sn[sn.Cluster=524531317]="Cluster",sn[sn.Timestamp=231]="Timestamp",sn[sn.Cues=475249515]="Cues",sn[sn.CuePoint=187]="CuePoint",sn[sn.CueTime=179]="CueTime",sn[sn.CueTrackPositions=183]="CueTrackPositions",sn[sn.CueTrack=247]="CueTrack",sn[sn.CueClusterPosition=241]="CueClusterPosition",sn[sn.Colour=21936]="Colour",sn[sn.MatrixCoefficients=21937]="MatrixCoefficients",sn[sn.TransferCharacteristics=21946]="TransferCharacteristics",sn[sn.Primaries=21947]="Primaries",sn[sn.Range=21945]="Range",sn[sn.Projection=30320]="Projection",sn[sn.ProjectionType=30321]="ProjectionType",sn[sn.ProjectionPoseRoll=30325]="ProjectionPoseRoll",sn[sn.Attachments=423732329]="Attachments",sn[sn.AttachedFile=24999]="AttachedFile",sn[sn.FileDescription=18046]="FileDescription",sn[sn.FileName=18030]="FileName",sn[sn.FileMediaType=18016]="FileMediaType",sn[sn.FileData=18012]="FileData",sn[sn.FileUID=18094]="FileUID",sn[sn.Chapters=272869232]="Chapters",sn[sn.Tags=307544935]="Tags",sn[sn.Tag=29555]="Tag",sn[sn.Targets=25536]="Targets",sn[sn.TargetTypeValue=26826]="TargetTypeValue",sn[sn.TargetType=25546]="TargetType",sn[sn.TagTrackUID=25541]="TagTrackUID",sn[sn.TagEditionUID=25545]="TagEditionUID",sn[sn.TagChapterUID=25540]="TagChapterUID",sn[sn.TagAttachmentUID=25542]="TagAttachmentUID",sn[sn.SimpleTag=26568]="SimpleTag",sn[sn.TagName=17827]="TagName",sn[sn.TagLanguage=17530]="TagLanguage",sn[sn.TagString=17543]="TagString",sn[sn.TagBinary=17541]="TagBinary",sn[sn.ContentEncodings=28032]="ContentEncodings",sn[sn.ContentEncoding=25152]="ContentEncoding",sn[sn.ContentEncodingOrder=20529]="ContentEncodingOrder",sn[sn.ContentEncodingScope=20530]="ContentEncodingScope",sn[sn.ContentCompression=20532]="ContentCompression",sn[sn.ContentCompAlgo=16980]="ContentCompAlgo",sn[sn.ContentCompSettings=16981]="ContentCompSettings",sn[sn.ContentEncryption=20533]="ContentEncryption";const an=[nn.EBML,nn.Segment],on=[nn.SeekHead,nn.Info,nn.Cluster,nn.Tracks,nn.Cues,nn.Attachments,nn.Chapters,nn.Tags],ln=[...an,...on],cn=16,un=e=>{if(e.remainingLength<1)return null;const t=vl(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength<i?null:i},dn=e=>{if(e.remainingLength<1)return null;const t=vl(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength<i-1)return null;let n=t&r-1;for(let s=1;s<i;s++)n*=256,n+=vl(e);return n},hn=(e,t)=>{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r<t;r++)i*=256,i+=vl(e);return i},fn=e=>{const t=un(e);if(null===t)return null;if(e.remainingLength<t)return null;return hn(e,t)},mn=e=>{if(e.remainingLength<1)return null;if(255===vl(e))return;e.skip(-1);const t=dn(e);return null===t?null:72057594037927940!==t?t:void 0},pn=e=>{oe(e.remainingLength>=2);const t=fn(e);if(null===t)return null;const i=mn(e);return null===i?null:{id:t,size:i}},gn=(e,t)=>{const i=Tl(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return String.fromCharCode(...i.subarray(0,r))},kn=(e,t)=>{const i=Tl(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return pe.decode(i.subarray(0,r))},yn=(e,t)=>{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?Ml(e):Dl(e)},bn=(e,t,i,r)=>Y(null,null,function*(){const n=new Set(i);let s=t;for(;null===r||s<r;){let t=e.requestSliceRange(s,2,cn);if(ct(t)&&(t=yield t),!t)break;const i=pn(t);if(!i)break;if(n.has(i.id))return{pos:s,found:!0};Dn(i.size),s=t.filePos+i.size}return{pos:null!==r&&r>s?r:s,found:!1}}),Tn=(e,t,i,r)=>Y(null,null,function*(){const n=q(2,16),s=new Set(i);let a=t;for(;a<r;){let t=e.requestSliceRange(a,0,Math.min(n,r-a));if(ct(t)&&(t=yield t),!t)break;if(t.length<8)break;for(let e=0;e<t.length-8;e++){t.filePos=a;const e=fn(t);if(null!==e&&s.has(e))return a;a++}}return null}),vn="V_MPEG4/ISO/AVC",wn="V_MPEGH/ISO/HEVC",Sn="V_VP8",Pn="V_VP9",In="V_AV1",xn="V_PRORES",Cn="A_AAC",Bn="A_MPEG/L3",En="A_OPUS",_n="A_VORBIS",Rn="A_FLAC",Fn="A_AC3",An="A_EAC3",Mn="A_DTS";function Dn(e){if(void 0===e)throw new Error("Undefined element size is used in a place where it is not supported.")}var Nn,On,Ln,zn,Un,qn;(On=Nn||(Nn={}))[On.None=0]="None",On[On.Xiph=1]="Xiph",On[On.FixedSize=2]="FixedSize",On[On.Ebml=3]="Ebml",(zn=Ln||(Ln={}))[zn.Block=1]="Block",zn[zn.Private=2]="Private",zn[zn.Next=4]="Next",(qn=Un||(Un={}))[qn.Zlib=0]="Zlib",qn[qn.Bzlib=1]="Bzlib",qn[qn.lzo1x=2]="lzo1x",qn[qn.HeaderStripping=3]="HeaderStripping";const Wn=[{id:nn.SeekHead,flag:"seekHeadSeen"},{id:nn.Info,flag:"infoSeen"},{id:nn.Tracks,flag:"tracksSeen"},{id:nn.Cues,flag:"cuesSeen"}],Hn=10*q(2,20);class Vn extends yr{constructor(e){super(e),this.readMetadataPromise=null,this.segments=[],this.currentSegment=null,this.currentTrack=null,this.currentCluster=null,this.currentBlock=null,this.currentBlockAdditional=null,this.currentCueTime=null,this.currentDecodingInstruction=null,this.currentTagTargetIsMovie=!0,this.currentSimpleTagName=null,this.currentAttachedFile=null,this.isWebM=!1,this.reader=e._reader}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.segments.flatMap(e=>e.tracks.map(e=>e.trackBacking))})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)})),hasAudio:this.segments.some(e=>e.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)})),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return Y(this,null,function*(){yield this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&(yield this.loadSegmentMetadata(t)),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e=H(H({},e),t.metadataTags);return e})}readMetadata(){var e;return null!=(e=this.readMetadataPromise)?e:this.readMetadataPromise=(()=>Y(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,cn);if(ct(t)&&(t=yield t),!t)break;const i=pn(t);if(!i)break;const r=i.id;let n=i.size;const s=t.filePos;if(r===nn.EBML){Dn(n);let e=this.reader.requestSlice(s,n);if(ct(e)&&(e=yield e),!e)break;this.readContiguousElements(e)}else if(r===nn.Segment){if(yield this.readSegment(s,n),void 0===n)break;if(null===this.reader.fileSize)break}else if(r===nn.Cluster){if(null===this.reader.fileSize)break;if(void 0===n){n=(yield bn(this.reader,s,ln,this.reader.fileSize)).pos-s}const e=ce(this.segments);e&&(e.elementEndPos=s+n)}Dn(n),e=s+n}}))()}readSegment(e,t){return Y(this,null,function*(){var i;this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let r=e;for(;null===this.currentSegment.elementEndPos||r<this.currentSegment.elementEndPos;){let e=this.reader.requestSliceRange(r,2,cn);if(ct(e)&&(e=yield e),!e)break;const t=r,n=pn(e);if(!n||!on.includes(n.id)&&n.id!==nn.Void){const e=yield Tn(this.reader,t,on,Math.min(null!=(i=this.currentSegment.elementEndPos)?i:1/0,t+Hn));if(e){r=e;continue}break}const{id:s,size:a}=n,o=e.filePos,l=Wn.findIndex(e=>e.id===s);if(-1!==l){const e=Wn[l].flag;this.currentSegment[e]=!0,Dn(a);let t=this.reader.requestSlice(o,a);ct(t)&&(t=yield t),t&&this.readContiguousElements(t)}else if(s===nn.Tags||s===nn.Attachments){s===nn.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,Dn(a);let e=this.reader.requestSlice(o,a);ct(e)&&(e=yield e),e&&this.readContiguousElements(e)}else if(s===nn.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===a)break;r=o+a}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const t of this.currentSegment.seekEntries){const i=Wn.find(e=>e.id===t.id);if(!i)continue;if(this.currentSegment[i.flag])continue;let r=this.reader.requestSliceRange(e+t.segmentPosition,2,cn);if(ct(r)&&(r=yield r),!r)continue;const n=pn(r);if(!n)continue;const{id:s,size:a}=n;if(s!==i.id)continue;Dn(a),this.currentSegment[i.flag]=!0;let o=this.reader.requestSlice(r.filePos,a);ct(o)&&(o=yield o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const e of this.currentSegment.tracks)null!==e.defaultDurationNs&&(e.defaultDuration=this.currentSegment.timestampFactor*e.defaultDurationNs/1e9);const n=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const e of this.currentSegment.cuePoints){const t=n.get(e.trackId);t&&t.cuePoints.push(e)}for(const e of this.currentSegment.tracks){e.cuePoints.sort((e,t)=>e.time-t.time);for(let t=0;t<e.cuePoints.length-1;t++){const i=e.cuePoints[t],r=e.cuePoints[t+1];i.time===r.time&&(e.cuePoints.splice(t+1,1),t--)}}let s=null,a=-1/0;for(const e of this.currentSegment.tracks)e.cuePoints.length>a&&(a=e.cuePoints.length,s=e);for(const e of this.currentSegment.tracks)0===e.cuePoints.length&&(e.cuePoints=s.cuePoints);this.currentSegment=null})}readCluster(e,t){return Y(this,null,function*(){var i;if((null==(i=t.lastReadCluster)?void 0:i.elementStartPos)===e)return t.lastReadCluster;let r=this.reader.requestSliceRange(e,2,cn);ct(r)&&(r=yield r),oe(r);const n=e,s=pn(r);oe(s);oe(s.id===nn.Cluster);let a=s.size;const o=r.filePos;if(void 0===a){a=(yield bn(this.reader,o,ln,t.elementEndPos)).pos-o}let l=this.reader.requestSlice(o,a);ct(l)&&(l=yield l);const c={segment:t,elementStartPos:n,elementEndPos:o+a,dataStartPos:o,timestamp:-1,trackData:new Map};if(this.currentCluster=c,l){const e=this.readContiguousElements(l,ln);c.elementEndPos=e}for(const[,e]of c.trackData){const t=e.track;oe(e.blocks.length>0);let i=!1;for(let n=0;n<e.blocks.length;n++){const t=e.blocks[n];t.timestamp+=c.timestamp,i||(i=t.lacing!==Nn.None)}e.presentationTimestamps=e.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let n=0;n<e.presentationTimestamps.length;n++){const i=e.presentationTimestamps[n],r=e.blocks[i.blockIndex];if(null===e.firstKeyFrameTimestamp&&r.isKeyFrame&&(e.firstKeyFrameTimestamp=r.timestamp),n<e.presentationTimestamps.length-1){const t=e.presentationTimestamps[n+1];r.duration=t.timestamp-r.timestamp}else 0===r.duration&&null!=t.defaultDuration&&r.lacing===Nn.None&&(r.duration=t.defaultDuration)}i&&(this.expandLacedBlocks(e.blocks,t),e.presentationTimestamps=e.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const r=e.blocks[e.presentationTimestamps[0].blockIndex],s=e.blocks[ce(e.presentationTimestamps).blockIndex];e.startTimestamp=r.timestamp,e.endTimestamp=s.timestamp+s.duration;const a=Re(t.clusterPositionCache,e.startTimestamp,e=>e.startTimestamp);-1!==a&&t.clusterPositionCache[a].elementStartPos===n||t.clusterPositionCache.splice(a+1,0,{elementStartPos:c.elementStartPos,startTimestamp:e.startTimestamp})}return t.lastReadCluster=c,c})}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){var i;for(let r=0;r<e.length;r++){const n=e[r];if(n.lacing===Nn.None)continue;n.decoded||(n.data=this.decodeBlockData(t,n.data),n.decoded=!0);const s=yl.tempFromBytes(n.data),a=[],o=vl(s)+1;switch(n.lacing){case Nn.Xiph:{let e=0;for(let t=0;t<o-1;t++){let t=0;for(;s.bufferPos<s.length;){const i=vl(s);if(t+=i,i<255){a.push(t),e+=t;break}}}a.push(s.length-(s.bufferPos+e))}break;case Nn.FixedSize:{const e=s.length-1,t=Math.floor(e/o);for(let i=0;i<o;i++)a.push(t)}break;case Nn.Ebml:{const e=dn(s);oe(null!==e);let t=e;a.push(t);let i=t;for(let r=1;r<o-1;r++){const e=s.bufferPos,r=dn(s);oe(null!==r);t+=r-((1<<7*(s.bufferPos-e)-1)-1),a.push(t),i+=t}a.push(s.length-(s.bufferPos+i))}break;default:oe(!1)}oe(a.length===o),e.splice(r,1);const l=n.duration||o*(null!=(i=t.defaultDuration)?i:0);for(let t=0;t<o;t++){const i=a[t],c=Tl(s,i),u=n.timestamp+l*t/o,d=l/o;e.splice(r+t,0,{timestamp:u,duration:d,isKeyFrame:n.isKeyFrame,data:c,lacing:Nn.None,decoded:!0,postProcessed:!1,mainAdditional:n.mainAdditional})}r+=o,r--}}loadSegmentMetadata(e){return Y(this,null,function*(){for(const t of e.seekEntries){if(t.id!==nn.Tags||e.tagsSeen){if(t.id!==nn.Attachments||e.attachmentsSeen)continue}else;let i=this.reader.requestSliceRange(e.dataStartPos+t.segmentPosition,2,cn);if(ct(i)&&(i=yield i),!i)continue;const r=pn(i);if(!r||r.id!==t.id)continue;const{size:n}=r;Dn(n),oe(!this.currentSegment),this.currentSegment=e;let s=this.reader.requestSlice(i.filePos,n);ct(s)&&(s=yield s),s&&this.readContiguousElements(s),this.currentSegment=null,t.id===nn.Tags?e.tagsSeen=!0:t.id===nn.Attachments&&(e.attachmentsSeen=!0)}})}readContiguousElements(e,t){for(;e.remainingLength>=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F,A,M,D,N,O,L,z,U,q,W,j,K,X,$,G,Q,Y,J,Z,ee;const te=pn(e);if(!te)return!1;if(t&&t.includes(te.id))return!1;const{id:ie,size:re}=te,ne=e.filePos;switch(Dn(re),ie){case nn.DocType:this.isWebM="webm"===gn(e,re);break;case nn.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(ne,re)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case nn.SeekID:{const t=null==(i=this.currentSegment)?void 0:i.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=hn(e,re)}break;case nn.SeekPosition:{const t=null==(r=this.currentSegment)?void 0:r.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=hn(e,re)}break;case nn.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=hn(e,re),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case nn.Duration:if(!this.currentSegment)break;this.currentSegment.duration=yn(e,re);break;case nn.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:V(H({},Ct),{primary:!1}),trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(ne,re)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>{var t;return"decompress"!==(null==(t=e.data)?void 0:t.type)||e.scope!==Ln.Block||e.data.algorithm!==Un.HeaderStripping})&&(Pt._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===vn)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===wn)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===Sn)this.currentTrack.info.codec="vp8";else if(t===Pn)this.currentTrack.info.codec="vp9";else if(t===In)this.currentTrack.info.codec="av1";else if(t===xn){const e=this.currentTrack.codecPrivate?pe.decode(this.currentTrack.codecPrivate):"";Zi.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new Kn(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===Cn?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===Bn?this.currentTrack.info.codec="mp3":t===En?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=nr):t===_n?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Rn?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Fn?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===An?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Mn?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new Xn(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case nn.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=hn(e,re);break;case nn.TrackType:{if(!this.currentTrack)break;const t=hn(e,re);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:H({},Pe),alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case nn.FlagEnabled:if(!this.currentTrack)break;hn(e,re)||(this.currentTrack=null);break;case nn.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!hn(e,re);break;case nn.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!hn(e,re);break;case nn.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!hn(e,re);break;case nn.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!hn(e,re);break;case nn.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!hn(e,re);break;case nn.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!hn(e,re);break;case nn.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=gn(e,re);break;case nn.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=Tl(e,re);break;case nn.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=hn(e,re);break;case nn.Name:if(!this.currentTrack)break;this.currentTrack.name=kn(e,re);break;case nn.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=gn(e,re),Ge(this.currentTrack.languageCode)||(this.currentTrack.languageCode=We);break;case nn.LanguageBCP47:{if(!this.currentTrack)break;const t=gn(e,re).split("-")[0];this.currentTrack.languageCode=t||We,this.currentTrack.hasLanguageBcp47=!0}break;case nn.Video:if("video"!==(null==(s=null==(n=this.currentTrack)?void 0:n.info)?void 0:s.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.PixelWidth:if("video"!==(null==(o=null==(a=this.currentTrack)?void 0:a.info)?void 0:o.type))break;this.currentTrack.info.width=hn(e,re);break;case nn.PixelHeight:if("video"!==(null==(c=null==(l=this.currentTrack)?void 0:l.info)?void 0:c.type))break;this.currentTrack.info.height=hn(e,re);break;case nn.DisplayWidth:if("video"!==(null==(d=null==(u=this.currentTrack)?void 0:u.info)?void 0:d.type))break;this.currentTrack.info.displayWidth=hn(e,re);break;case nn.DisplayHeight:if("video"!==(null==(f=null==(h=this.currentTrack)?void 0:h.info)?void 0:f.type))break;this.currentTrack.info.displayHeight=hn(e,re);break;case nn.DisplayUnit:if("video"!==(null==(p=null==(m=this.currentTrack)?void 0:m.info)?void 0:p.type))break;this.currentTrack.info.displayUnit=hn(e,re);break;case nn.AlphaMode:if("video"!==(null==(k=null==(g=this.currentTrack)?void 0:g.info)?void 0:k.type))break;this.currentTrack.info.alphaMode=1===hn(e,re);break;case nn.Colour:if("video"!==(null==(b=null==(y=this.currentTrack)?void 0:y.info)?void 0:b.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.MatrixCoefficients:{if("video"!==(null==(v=null==(T=this.currentTrack)?void 0:T.info)?void 0:v.type))break;const t=hn(e,re),i=we[t];this.currentTrack.info.colorSpace.matrix=i}break;case nn.Range:{if("video"!==(null==(S=null==(w=this.currentTrack)?void 0:w.info)?void 0:S.type))break;const t=hn(e,re);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case nn.TransferCharacteristics:{if("video"!==(null==(I=null==(P=this.currentTrack)?void 0:P.info)?void 0:I.type))break;const t=hn(e,re),i=Te[t];this.currentTrack.info.colorSpace.transfer=i}break;case nn.Primaries:{if("video"!==(null==(C=null==(x=this.currentTrack)?void 0:x.info)?void 0:C.type))break;const t=hn(e,re),i=ye[t];this.currentTrack.info.colorSpace.primaries=i}break;case nn.Projection:if("video"!==(null==(E=null==(B=this.currentTrack)?void 0:B.info)?void 0:E.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.ProjectionPoseRoll:{if("video"!==(null==(R=null==(_=this.currentTrack)?void 0:_.info)?void 0:R.type))break;const t=-yn(e,re);try{this.currentTrack.info.rotation=le(t)}catch(se){}}break;case nn.Audio:if("audio"!==(null==(A=null==(F=this.currentTrack)?void 0:F.info)?void 0:A.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.SamplingFrequency:if("audio"!==(null==(D=null==(M=this.currentTrack)?void 0:M.info)?void 0:D.type))break;this.currentTrack.info.sampleRate=yn(e,re);break;case nn.Channels:if("audio"!==(null==(O=null==(N=this.currentTrack)?void 0:N.info)?void 0:O.type))break;this.currentTrack.info.numberOfChannels=hn(e,re);break;case nn.BitDepth:if("audio"!==(null==(z=null==(L=this.currentTrack)?void 0:L.info)?void 0:z.type))break;this.currentTrack.info.bitDepth=hn(e,re);break;case nn.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(ne,re)),this.currentCueTime=null;break;case nn.CueTime:this.currentCueTime=hn(e,re);break;case nn.CueTrackPositions:{if(null===this.currentCueTime)break;oe(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(ne,re)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case nn.CueTrack:{const t=null==(U=this.currentSegment)?void 0:U.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=hn(e,re)}break;case nn.CueClusterPosition:{const t=null==(q=this.currentSegment)?void 0:q.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;oe(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+hn(e,re)}break;case nn.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=hn(e,re);break;case nn.SimpleBlock:{if(!this.currentCluster)break;const t=dn(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Il(e),n=vl(e),s=n>>1&3;let a=!!(128&n);"audio"===(null==(W=i.track.info)?void 0:W.type)&&i.track.info.codec&&(a=!0);const o=Tl(e,re-(e.filePos-ne)),l=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:a,data:o,lacing:s,decoded:!l,postProcessed:!1,mainAdditional:null})}break;case nn.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(ne,re)),this.currentBlock=null;break;case nn.Block:{if(!this.currentCluster)break;const t=dn(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Il(e),n=vl(e)>>1&3,s=Tl(e,re-(e.filePos-ne)),a=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:s,lacing:n,decoded:!a,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case nn.BlockAdditions:this.readContiguousElements(e.slice(ne,re));break;case nn.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(ne,re)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case nn.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=Tl(e,re);break;case nn.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=hn(e,re);break;case nn.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=hn(e,re);break;case nn.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case nn.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(ne,re));break;case nn.Targets:this.readContiguousElements(e.slice(ne,re));break;case nn.TargetTypeValue:50!==hn(e,re)&&(this.currentTagTargetIsMovie=!1);break;case nn.TagTrackUID:case nn.TagEditionUID:case nn.TagChapterUID:case nn.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case nn.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(ne,re));break;case nn.TagName:this.currentSimpleTagName=kn(e,re);break;case nn.TagString:{if(!this.currentSimpleTagName)break;const t=kn(e,re);this.processTagValue(this.currentSimpleTagName,t)}break;case nn.TagBinary:{if(!this.currentSimpleTagName)break;const t=Tl(e,re);this.processTagValue(this.currentSimpleTagName,t)}break;case nn.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(ne,re));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(null!=t.raw||(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new xt(this.currentAttachedFile.fileData,null!=(j=this.currentAttachedFile.fileMediaType)?j:void 0,null!=(K=this.currentAttachedFile.fileName)?K:void 0,null!=(X=this.currentAttachedFile.fileDescription)?X:void 0)),(null==($=this.currentAttachedFile.fileMediaType)?void 0:$.startsWith("image/"))&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}null!=t.images||(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:null!=(G=this.currentAttachedFile.fileName)?G:void 0,description:null!=(Q=this.currentAttachedFile.fileDescription)?Q:void 0})}this.currentAttachedFile=null}break;case nn.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=BigInt("0");for(let r=0;r<t;r++)i<<=BigInt("8"),i+=BigInt(vl(e));return i})(e,re);break;case nn.FileName:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=kn(e,re);break;case nn.FileMediaType:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=gn(e,re);break;case nn.FileData:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=Tl(e,re);break;case nn.FileDescription:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=kn(e,re);break;case nn.ContentEncodings:if(!this.currentTrack)break;this.readContiguousElements(e.slice(ne,re)),this.currentTrack.decodingInstructions.sort((e,t)=>t.order-e.order);break;case nn.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Ln.Block,data:null},this.readContiguousElements(e.slice(ne,re)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case nn.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=hn(e,re);break;case nn.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=hn(e,re);break;case nn.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:Un.Zlib,settings:null},this.readContiguousElements(e.slice(ne,re));break;case nn.ContentCompAlgo:if("decompress"!==(null==(J=null==(Y=this.currentDecodingInstruction)?void 0:Y.data)?void 0:J.type))break;this.currentDecodingInstruction.data.algorithm=hn(e,re);break;case nn.ContentCompSettings:if("decompress"!==(null==(ee=null==(Z=this.currentDecodingInstruction)?void 0:Z.data)?void 0:ee.type))break;this.currentDecodingInstruction.data.settings=Tl(e,re);break;case nn.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=ne+re,!0}decodeBlockData(e,t){oe(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(oe(r.data),"decompress"===r.data.type)if(r.data.algorithm===Un.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i,r;if(!(null==(i=this.currentSegment)?void 0:i.metadataTags))return;const n=this.currentSegment.metadataTags;if(null!=n.raw||(n.raw={}),null!=(r=n.raw)[e]||(r[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":null!=n.title||(n.title=t);break;case"description":null!=n.description||(n.description=t);break;case"artist":null!=n.artist||(n.artist=t);break;case"album":null!=n.album||(n.album=t);break;case"album_artist":null!=n.albumArtist||(n.albumArtist=t);break;case"genre":null!=n.genre||(n.genre=t);break;case"comment":null!=n.comment||(n.comment=t);break;case"lyrics":null!=n.lyrics||(n.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||null!=n.date||(n.date=e)}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.trackNumber||(n.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.tracksTotal||(n.tracksTotal=r))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.discNumber||(n.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.discsTotal||(n.discsTotal=r))}}}getDurationFromMetadata(e){return Y(this,null,function*(){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){oe(r.trackBacking);const e=yield r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(null!=t?t:1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=null!=t?t:0,i})}}class jn{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getFirstPacket(e){return Y(this,null,function*(){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)})}intoTimescale(e){return He(e*this.internalTrack.segment.timestampFactor)}getPacket(e,t){return Y(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=Re(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1<t.blocks.length)return{blockIndex:i.blockIndex+1,correctBlockFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{blockIndex:0,correctBlockFound:!0}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}getKeyPacket(e,t){return Y(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=Ne(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)})}getNextKeyPacket(e,t){return Y(this,null,function*(){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return oe(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}fetchPacketInCluster(e,t,i){return Y(this,null,function*(){var r,n;if(-1===t)return null;const s=e.trackData.get(this.internalTrack.id).blocks[t];if(oe(s),s.decoded||(s.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,s.data),s.decoded=!0),!s.postProcessed){if("prores"===(null==(r=this.internalTrack.info)?void 0:r.codec)){if(!(s.data.length>=8&&105===s.data[4]&&99===s.data[5]&&112===s.data[6]&&102===s.data[7])){const e=new Uint8Array(s.data.length+8);me(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(s.data,8),s.data=e}}s.postProcessed=!0}const a=i.metadataOnly?br:s.data,o=s.timestamp/this.internalTrack.segment.timestampFactor,l=s.duration/this.internalTrack.segment.timestampFactor,c={};s.mainAdditional&&"video"===(null==(n=this.internalTrack.info)?void 0:n.type)&&this.internalTrack.info.alphaMode&&(c.alpha=i.metadataOnly?br:s.mainAdditional,c.alphaByteLength=s.mainAdditional.byteLength);const u=new Tr(a,s.isKeyFrame?"key":"delta",o,l,e.dataStartPos+t,s.data.byteLength,c);return this.packetToClusterLocation.set(u,{cluster:e,blockIndex:t}),u})}performClusterLookup(e,t,i,r,n){return Y(this,null,function*(){var s,a,o,l;const{demuxer:c,segment:u}=this.internalTrack;let d=null,h=null,f=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,n);-1!==i&&(h=e,f=i)}const m=Re(this.internalTrack.cuePoints,i,e=>e.time),p=-1!==m?this.internalTrack.cuePoints[m]:null,g=Re(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),k=-1!==g?this.internalTrack.clusterPositionCache[g]:null,y=Math.max(null!=(s=null==p?void 0:p.clusterPosition)?s:0,null!=(a=null==k?void 0:k.elementStartPos)?a:0)||null;let b;for(e?null===y||e.elementStartPos>=y?(b=e.elementEndPos,d=e):b=y:b=null!=y?y:u.clusterSeekStartPos;null===u.elementEndPos||b<=u.elementEndPos-2;){if(d){const e=d.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=c.reader.requestSliceRange(b,2,cn);if(ct(e)&&(e=yield e),!e)break;const i=b,s=pn(e);if(!s||!on.includes(s.id)&&s.id!==nn.Void){const e=yield Tn(c.reader,i,on,Math.min(null!=(o=u.elementEndPos)?o:1/0,i+Hn));if(e){b=e;continue}break}const a=s.id;let l=s.size;const m=e.filePos;if(a===nn.Cluster){d=yield c.readCluster(i,u),l=d.elementEndPos-m;const{blockIndex:e,correctBlockFound:r}=t(d);if(r)return this.fetchPacketInCluster(d,e,n);-1!==e&&(h=d,f=e)}if(void 0===l){oe(a!==nn.Cluster);l=(yield bn(c.reader,m,ln,u.elementEndPos)).pos-m}const p=m+l;if(null===u.elementEndPos){let e=c.reader.requestSliceRange(p,2,cn);if(ct(e)&&(e=yield e),!e)break;if(fn(e)===nn.Segment){u.elementEndPos=p;break}}b=p}if(p&&(!h||h.elementStartPos<p.clusterPosition)){const e=this.internalTrack.cuePoints[m-1];oe(!e||e.time<p.time);const i=null!=(l=null==e?void 0:e.time)?l:-1/0;return this.performClusterLookup(null,t,i,r,n)}return h?this.fetchPacketInCluster(h,f,n):null})}}class Kn extends jn{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.info.rotation}getColorSpace(){return Y(this,null,function*(){var e,t,i,r;const n=yield this.getDecoderConfig();return n?{primaries:null==(e=n.colorSpace)?void 0:e.primaries,transfer:null==(t=n.colorSpace)?void 0:t.transfer,matrix:null==(i=n.colorSpace)?void 0:i.matrix,fullRange:null==(r=n.colorSpace)?void 0:r.fullRange}:this.internalTrack.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return this.internalTrack.info.alphaMode||"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)})}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e,t,i,r,n;let s=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(s=yield this.getFirstPacket({}));const a={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&s?$t(s.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&s?ni(s.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&s?gi(s.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&s?yi(s.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&s?bi(s.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!Se(this.internalTrack.info.colorSpace)){const n=ir(a);null!=(e=this.internalTrack.info.colorSpace).primaries||(e.primaries=n.primaries),null!=(t=this.internalTrack.info.colorSpace).transfer||(t.transfer=n.transfer),null!=(i=this.internalTrack.info.colorSpace).matrix||(i.matrix=n.matrix),null!=(r=this.internalTrack.info.colorSpace).fullRange||(r.fullRange=n.fullRange)}const o={codec:tr(a),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(n=this.internalTrack.info.codecDescription)?n:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class Xn extends jn{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Wi(e.data)}return{codec:rr({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const $n=(e,t,i,r=null)=>Y(null,null,function*(){const n=q(2,16);let s=t;for(;null===i||s<i;){const t=null!==i?Math.min(n,i-s):n;let a=e.requestSliceRange(s,4,t);if(ct(a)&&(a=yield a),!a||a.length<4)break;for(;a.remainingLength>=4;){const t=a.filePos,i=Cl(a),n=null!==e.fileSize?e.fileSize-s:null,o=fr(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&kr(o.header.channel)===kr(r.channel)))return{header:o.header,startPos:s};a.filePos=t+o.bytesAdvanced,s=a.filePos}}return null});class Gn extends yr{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new xe,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new Qn(this)]}))()})}advanceReader(){return Y(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=Xl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=yield $n(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=hr(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(ct(r)&&(r=yield r),r){const n=Cl(r);if(n===ur||n===dr){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(ct(t)&&(t=yield t),t){const e=Tl(t,12),i=me(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&pr.FrameCount?i.getUint32(4,!1):null,fileSize:r&pr.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const n=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:n,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame})}getMimeType(){return Y(this,null,function*(){return"audio/mpeg"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=!0;let n=this.reader.requestSlice(i.filePos,r.size);if(ct(n)&&(n=yield n),!n)break;$l(n,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=Wl){let e=this.reader.requestSlice(this.reader.fileSize-Wl,Wl);ct(e)&&(e=yield e),oe(e);"TAG"===Nl(e,3)&&jl(e,this.metadataTags)}return this.metadataTags}finally{e()}})}}class Qn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){const e=this.demuxer;if(oe(null!==e.firstFrameHeader),oe(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,n=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(n<<t):2===i?144*r/n:12*r/n*4),a=(e.reader.fileSize-e.firstFrameHeaderPos)/s;return Math.round(a)*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}var t,i,r,n;return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getCodec(){return"mp3"}getInternalCodecId(){return null}getNumberOfChannels(){return oe(this.demuxer.firstFrameHeader),kr(this.demuxer.firstFrameHeader.channel)}getSampleRate(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.firstFrameHeader),{codec:"mp3",numberOfChannels:kr(this.demuxer.firstFrameHeader.channel),sampleRate:this.demuxer.firstFrameHeader.sampleRate}})}getPacketAtIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.dataSize)}return new Tr(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=_e(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);yield this.demuxer.advanceReader()}}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Yn=1399285583,Jn=new Uint32Array(256);for(let Cc=0;Cc<256;Cc++){let e=Cc<<24;for(let t=0;t<8;t++)e=2147483648&e?e<<1^79764919:e<<1;Jn[Cc]=e>>>0&4294967295}const Zn=e=>{const t=me(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let n=0;n<e.length;n++){const t=e[n];r=(r<<8^Jn[r>>>24^t])>>>0}return t.setUint32(22,i,!0),r},es=(e,t,i)=>{let r=0,n=null;if(e.length>0)if("vorbis"===t.codec){oe(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,a=(e[0]&s)>>1;if(a>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let o=i;const l=t.vorbisInfo.modeBlockflags[a];if(n=t.vorbisInfo.blocksizes[l],1===l){const i=1+(1|s),r=e[0]&i?1:0;o=t.vorbisInfo.blocksizes[r]}r=null!==o?o+n>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:Ti[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:n}},ts=27,is=282,rs=e=>{const t=e.filePos;if(Bl(e)!==Yn)return null;e.skip(1);const i=vl(e),r=Al(e),n=Bl(e),s=Bl(e),a=Bl(e),o=vl(e),l=new Uint8Array(o);for(let d=0;d<o;d++)l[d]=vl(e);const c=27+o,u=l.reduce((e,t)=>e+t,0);return{headerStartPos:t,totalSize:c+u,dataStartPos:t+c,dataSize:u,headerType:i,granulePosition:r,serialNumber:n,sequenceNumber:s,checksum:a,lacingValues:l}},ns=(e,t)=>{for(;e.filePos<t-3;){const t=Bl(e),i=79;if((255&t)===i||(t>>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===Yn)return!0;e.skip(1)}}return!1};class ss extends yr{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,ts,is);if(ct(t)&&(t=yield t),!t)break;const i=rs(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=yield this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?yield this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&(yield this.readOpusMetadata(e,t)),null!==t.codecInfo.codec&&this.trackBackings.push(new as(t,this)))}}))()})}readVorbisMetadata(e,t){return Y(this,null,function*(){let i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=yield this.findNextPacketStart(r),!i)return;const n=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!n)return;if(3!==r.data[0]||5!==n.data[0])return;const s=[],a=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};a(e.data.length),a(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+n.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(n.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=n;const l=me(e.data);t.numberOfChannels=l.getUint8(11),t.sampleRate=l.getUint32(12,!0);const c=l.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&c),1<<(c>>4)],modeBlockflags:vi(n.data).modeBlockflags},Ii(r.data.subarray(7),this.metadataTags)})}readOpusMetadata(e,t){return Y(this,null,function*(){const i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const n=(e=>{const t=me(e),i=t.getUint8(9),r=t.getUint16(10,!0),n=t.getUint32(12,!0),s=t.getInt16(16,!0),a=t.getUint8(18);let o=null;return a&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:n,outputGain:s,channelMappingFamily:a,channelMappingTable:o}})(e.data);t.numberOfChannels=n.outputChannelCount,t.sampleRate=nr,t.codecInfo.opusInfo={preSkip:n.preSkip},Ii(r.data.subarray(8),this.metadataTags)})}readPacket(e,t){return Y(this,null,function*(){oe(t<e.lacingValues.length);let i=0;for(let u=0;u<t;u++)i+=e.lacingValues[u];let r=e,n=i,s=t;const a=[];e:for(;;){let t=this.reader.requestSlice(r.dataStartPos,r.dataSize);ct(t)&&(t=yield t),oe(t);const o=Tl(t,r.dataSize);for(;;){if(s===r.lacingValues.length){a.push(o.subarray(i,n));break}const e=r.lacingValues[s];if(n+=e,e<255){a.push(o.subarray(i,n));break e}s++}let l=r.headerStartPos+r.totalSize;for(;;){let t=this.reader.requestSliceRange(l,ts,is);if(ct(t)&&(t=yield t),!t)return null;const i=rs(t);if(!i)return null;if(r=i,r.serialNumber===e.serialNumber)break;l=r.headerStartPos+r.totalSize}i=0,n=0,s=0}const o=a.reduce((e,t)=>e+t.length,0);if(0===o)return null;const l=new Uint8Array(o);let c=0;for(let e=0;e<a.length;e++){const t=a[e];l.set(t,c),c+=t.length}return{data:l,endPage:r,endSegmentIndex:s}})}findNextPacketStart(e){return Y(this,null,function*(){if(e.endSegmentIndex<e.endPage.lacingValues.length-1)return{startPage:e.endPage,startSegmentIndex:e.endSegmentIndex+1};if(!!(4&e.endPage.headerType))return null;let t=e.endPage.headerStartPos+e.endPage.totalSize;for(;;){let i=this.reader.requestSliceRange(t,ts,is);if(ct(i)&&(i=yield i),!i)return null;const r=rs(i);if(!r)return null;if(r.serialNumber===e.endPage.serialNumber)return{startPage:r,startSegmentIndex:0};t=r.headerStartPos+r.totalSize}})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();return(e=>{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(yield Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})))).filter(Boolean)})})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}class as{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new xe,this.internalSampleRate="opus"===e.codecInfo.codec?nr:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return oe(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}getDecoderConfig(){return Y(this,null,function*(){var e;return oe(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:null!=(e=this.bitstream.description)?e:void 0}})}getName(){return null}getLanguageCode(){return We}getDisposition(){return V(H({},Ct),{primary:!1})}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(oe(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:n}=es(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new Tr(i.metadataOnly?br:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:n}),s}getFirstPacket(e){return Y(this,null,function*(){oe(this.bitstream.lastMetadataPacket);const t=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(oe(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=yield this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=yield this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const n=i.timestampInSamples+i.durationInSamples,s=yield this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:n,vorbisLastBlocksize:i.vorbisBlockSize},t)})}getPacket(e,t){return Y(this,null,function*(){var i,r;if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const n=He(e*this.internalSampleRate);if(0===n)return this.getFirstPacket(t);if(n<0)return null;oe(this.bitstream.lastMetadataPacket);const s=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!s)return null;let a=s.startPage,o=this.demuxer.reader.fileSize;const l=[a];e:for(;a.headerStartPos+a.totalSize<o;){const e=a.headerStartPos,t=Math.floor((e+o)/2);let i=t;for(;;){const e=Math.min(i+65307,o-ts);let r=this.demuxer.reader.requestSlice(i,e-i);ct(r)&&(r=yield r),oe(r);if(!ns(r,e)){o=t+ts;continue e}let s=this.demuxer.reader.requestSliceRange(r.filePos,ts,is);ct(s)&&(s=yield s),oe(s);const c=rs(s);oe(c);let u=!1;if(c.serialNumber===this.bitstream.serialNumber)u=!0;else{let e=this.demuxer.reader.requestSlice(c.headerStartPos,c.totalSize);ct(e)&&(e=yield e),oe(e);const t=Tl(e,c.totalSize);u=Zn(t)===c.checksum}if(!u){i=c.headerStartPos+4;continue}if(u&&c.serialNumber!==this.bitstream.serialNumber){i=c.headerStartPos+c.totalSize;continue}if(!(-1===c.granulePosition)){this.granulePositionToTimestampInSamples(c.granulePosition)>n?o=c.headerStartPos:(a=c,l.push(c));continue e}i=c.headerStartPos+c.totalSize}}let c=s.startPage;for(const e of l){if(e.granulePosition===a.granulePosition)break;(!c||e.headerStartPos>c.headerStartPos)&&(c=e)}let u=c;const d=[u];for(;u.serialNumber!==this.bitstream.serialNumber||u.granulePosition!==a.granulePosition;){const e=u.headerStartPos+u.totalSize;let t=this.demuxer.reader.requestSliceRange(e,ts,is);ct(t)&&(t=yield t),oe(t);const i=rs(t);oe(i),u=i,u.serialNumber===this.bitstream.serialNumber&&d.push(u)}oe(-1!==u.granulePosition);let h,f,m=null,p=u,g=0;if(u.headerStartPos===s.startPage.headerStartPos)h=this.granulePositionToTimestampInSamples(0),f=!0,m=0;else{h=0,f=!1;for(let t=u.lacingValues.length-1;t>=0;t--){if(u.lacingValues[t]<255){m=t+1;break}}if(null===m)throw new Error("Invalid page with granule position: no packets end on this page.");g=m-1;const e={data:br,endPage:p,endSegmentIndex:g};if(yield this.demuxer.findNextPacketStart(e)){const e=ls(d,u,m);oe(e);const t=os(d,e.page,e.segmentIndex);t&&(u=t.page,m=t.segmentIndex)}else for(;;){const e=ls(d,u,m);if(!e)break;const t=os(d,e.page,e.segmentIndex);if(!t)break;if(u=t.page,m=t.segmentIndex,e.page.headerStartPos!==p.headerStartPos){p=e.page,g=e.segmentIndex;break}}}let k=null,y=null;for(;null!==u;){oe(null!==m);const e=yield this.demuxer.readPacket(u,m);if(!e)break;if(!(u.headerStartPos===s.startPage.headerStartPos&&m<s.startSegmentIndex)){let s=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:h,vorbisLastBlocksize:null!=(i=null==y?void 0:y.vorbisBlockSize)?i:null},t);oe(s);let a=this.encodedPacketToMetadata.get(s);if(oe(a),f||e.endPage.headerStartPos!==p.headerStartPos||e.endSegmentIndex!==g?h+=a.durationInSamples:(h=this.granulePositionToTimestampInSamples(u.granulePosition),f=!0,s=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:h-a.durationInSamples,vorbisLastBlocksize:null!=(r=null==y?void 0:y.vorbisBlockSize)?r:null},t),oe(s),a=this.encodedPacketToMetadata.get(s),oe(a)),k=s,y=a,f&&(Math.max(h,0)>n||Math.max(a.timestampInSamples,0)===n))break}const a=yield this.demuxer.findNextPacketStart(e);if(!a)break;u=a.startPage,m=a.startSegmentIndex}return k})}getPacketSequential(e,t){return Y(this,null,function*(){const i=yield this.sequentialScanMutex.acquire();try{const i=He(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=Re(this.sequentialScanCache,i,e=>e.timestampInSamples);let n;if(-1!==r){const e=this.sequentialScanCache[r];n=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else n=yield this.getFirstPacket(t);let s=0;for(;n&&n.timestamp<e;){const i=yield this.getNextPacket(n,t);if(!i||i.timestamp>e)break;if(n=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(n);oe(e),this.sequentialScanCache.length>0&&oe(ce(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return n}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const os=(e,t,i)=>{let r=t,n=i;e:for(;;){for(n--;n>=0;n--){if(r.lacingValues[n]<255){n++;break e}}oe(-1===n);if(!(1&r.headerType)){n=0;break}const t=De(e,e=>e.headerStartPos<r.headerStartPos);if(!t)return null;r=t,n=r.lacingValues.length}if(oe(-1!==n),n===r.lacingValues.length){const t=e[e.indexOf(r)+1];oe(t),r=t,n=0}return{page:r,segmentIndex:n}},ls=(e,t,i)=>{if(i>0)return{page:t,segmentIndex:i-1};const r=De(e,e=>e.headerStartPos<t.headerStartPos);return r?{page:r,segmentIndex:r.lacingValues.length-1}:null};var cs,us;(us=cs||(cs={}))[us.PCM=1]="PCM",us[us.IEEE_FLOAT=3]="IEEE_FLOAT",us[us.ALAW=6]="ALAW",us[us.MULAW=7]="MULAW",us[us.EXTENSIBLE=65534]="EXTENSIBLE";class ds extends yr{constructor(e){super(e),this.metadataPromise=null,this.dataStart=-1,this.dataSize=-1,this.audioInfo=null,this.trackBackings=[],this.lastKnownPacketIndex=0,this.metadataTags={},this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){var e,t;let i=this.reader.requestSlice(0,12);ct(i)&&(i=yield i),oe(i);const r=Nl(i,4),n="RIFX"!==r,s="RF64"===r,a=xl(i,n);let o=s?this.reader.fileSize:Math.min(a+8,null!=(e=this.reader.fileSize)?e:1/0);if("WAVE"!==Nl(i,4))throw new Error("Invalid WAVE file - wrong format");let l=0,c=null,u=i.filePos;for(;null===o||u<o;){let e=this.reader.requestSlice(u,8);if(ct(e)&&(e=yield e),!e)break;const i=Nl(e,4),r=xl(e,n),a=e.filePos;if(s&&0===l&&"ds64"!==i)throw new Error('Invalid RF64 file: First chunk must be "ds64".');if("fmt "===i)yield this.parseFmtChunk(a,r,n);else if("data"===i){if(null!=c||(c=r),this.dataStart=e.filePos,this.dataSize=Math.min(c,(null!=o?o:1/0)-this.dataStart),null===this.reader.fileSize)break}else if("ds64"===i){let e=this.reader.requestSlice(a,r);if(ct(e)&&(e=yield e),!e)break;const i=_l(e,n);c=_l(e,n),o=Math.min(i+8,null!=(t=this.reader.fileSize)?t:1/0)}else"LIST"===i?yield this.parseListChunk(a,r,n):"ID3 "!==i&&"id3 "!==i||(yield this.parseId3Chunk(a,r));u=a+r+(1&r),l++}if(!this.audioInfo)throw new Error('Invalid WAVE file - missing "fmt " chunk');if(-1===this.dataStart)throw new Error('Invalid WAVE file - missing "data" chunk');const d=this.audioInfo.blockSizeInBytes;this.dataSize=Math.floor(this.dataSize/d)*d,this.trackBackings.push(new fs(this))}))()})}parseFmtChunk(e,t,i){return Y(this,null,function*(){let r=this.reader.requestSlice(e,t);if(ct(r)&&(r=yield r),!r)return;let n=wl(r,i);const s=wl(r,i),a=xl(r,i);r.skip(4);const o=wl(r,i);let l;if(l=14===t?8:wl(r,i),t>=18&&357!==n){const e=wl(r,i),s=t-18;if(Math.min(s,e)>=22&&n===cs.EXTENSIBLE){r.skip(6);const e=Tl(r,16);n=e[0]|e[1]<<8}}if(n!==cs.MULAW&&n!==cs.ALAW||(l=8),n!==cs.PCM&&n!==cs.IEEE_FLOAT&&n!==cs.ALAW&&n!==cs.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${n}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(n===cs.PCM&&![8,16,24,32].includes(l))throw new Error(`Unsupported WAVE PCM bit depth (${l}). Only 8, 16, 24, and 32 bits are supported.`);if(n===cs.IEEE_FLOAT&&![32,64].includes(l))throw new Error(`Unsupported WAVE float bit depth (${l}). Only 32 and 64 bits are supported.`);this.audioInfo={format:n,numberOfChannels:s,sampleRate:a,sampleSizeInBytes:Math.ceil(l/8),blockSizeInBytes:o}})}parseListChunk(e,t,i){return Y(this,null,function*(){var r,n,s,a,o,l,c,u,d,h,f;let m=this.reader.requestSlice(e,t);if(ct(m)&&(m=yield m),!m)return;const p=Nl(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=Nl(m,4),t=xl(m,i),p=Tl(m,t);let k=0;for(let i=0;i<p.length&&0!==p[i];i++)k++;const y=String.fromCharCode(...p.subarray(0,k));switch(null!=(r=this.metadataTags).raw||(r.raw={}),this.metadataTags.raw[e]=y,e){case"INAM":case"TITL":null!=(n=this.metadataTags).title||(n.title=y);break;case"TIT3":null!=(s=this.metadataTags).description||(s.description=y);break;case"IART":null!=(a=this.metadataTags).artist||(a.artist=y);break;case"IPRD":null!=(o=this.metadataTags).album||(o.album=y);break;case"IPRT":case"ITRK":case"TRCK":{const e=y.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=(l=this.metadataTags).trackNumber||(l.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(c=this.metadataTags).tracksTotal||(c.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||null!=(u=this.metadataTags).date||(u.date=e)}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&(null!=(d=this.metadataTags).date||(d.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":null!=(h=this.metadataTags).genre||(h.genre=y);break;case"ICMT":case"CMNT":case"COMM":null!=(f=this.metadataTags).comment||(f.comment=y)}g+=8+t+(1&t)}})}parseId3Chunk(e,t){return Y(this,null,function*(){let i=this.reader.requestSlice(e,t);if(ct(i)&&(i=yield i),!i)return;const r=Xl(i);if(r){const n=t-Hl;if(r.size=Math.min(r.size,n),r.size>0){const t=i.slice(e+Hl,r.size);$l(t,r,this.metadataTags)}}})}getCodec(){if(oe(this.audioInfo),this.audioInfo.format===cs.MULAW)return"ulaw";if(this.audioInfo.format===cs.ALAW)return"alaw";if(this.audioInfo.format===cs.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===cs.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}oe(!1)}getMimeType(){return Y(this,null,function*(){return"audio/wav"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}const hs=2048;class fs{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.format}getDecoderConfig(){return Y(this,null,function*(){const e=this.demuxer.getCodec();return e?(oe(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null})}getNumberOfChannels(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return oe(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getDisposition(){return H({},Ct)}getPacketAtIndex(e,t){return Y(this,null,function*(){oe(e>=0),oe(this.demuxer.audioInfo);const i=e*hs*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(hs*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(ct(e)&&(e=yield e),!e)return null}let n;if(t.metadataOnly)n=br;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);ct(e)&&(e=yield e),oe(e),n=Tl(e,r)}const s=e*hs/this.demuxer.audioInfo.sampleRate,a=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new Tr(n,"key",s,a,e,r)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getPacket(e,t){return Y(this,null,function*(){oe(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/hs,(this.demuxer.dataSize-1)/(hs*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=yield this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;oe(null===this.demuxer.reader.fileSize);let n=yield this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;n;){const e=yield this.getNextPacket(n,t);if(!e)break;n=e}return n})}getNextPacket(e,t){oe(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/hs);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const ms=e=>{const t=e.filePos,i=Tl(e,9),r=new Bt(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const n=r.readBits(1),s=r.readBits(2)+1,a=r.readBits(4);if(15===a)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const l=r.readBits(13);r.skipBits(11);const c=r.readBits(2)+1;if(1!==c)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===n?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:a,channelConfiguration:o,frameLength:l,numberOfAacFrames:c,crcCheck:u,startPos:t}},ps=1024;class gs extends yr{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new xe,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();oe(this.firstFrameHeader),this.trackBackings=[new ks(this)]}))()})}advanceReader(){return Y(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=Xl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=ms(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=Et[t.samplingFrequencyIndex];oe(void 0!==i);const r=ps/i,n={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(n),this.nextTimestampInSamples+=ps,this.lastLoadedPos=t.startPos+t.frameLength})}getMimeType(){return Y(this,null,function*(){return"audio/aac"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,Hl);if(ct(t)&&(t=yield t),!t)break;const i=Xl(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(ct(r)&&(r=yield r),!r)break;$l(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}})}}class ks{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/ps}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getCodec(){return"aac"}getInternalCodecId(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){oe(this.demuxer.firstFrameHeader);const e=_t[this.demuxer.firstFrameHeader.channelConfiguration];return oe(void 0!==e),e}getSampleRate(){oe(this.demuxer.firstFrameHeader);const e=Et[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return oe(void 0!==e),e}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}})}getPacketAtIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.dataSize)}return new Tr(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=_e(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);yield this.demuxer.advanceReader()}}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}class ys extends yr{constructor(e){super(e),this.loadedSamples=[],this.metadataPromise=null,this.trackBacking=null,this.metadataTags={},this.audioInfo=null,this.lastLoadedPos=null,this.blockingBit=null,this.readingMutex=new xe,this.lastSampleLoaded=!1,this.reader=e._reader}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),oe(this.trackBacking),[this.trackBacking]})}getMimeType(){return Y(this,null,function*(){return"audio/flac"})}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){var e;let t=0;for(;;){let e=this.reader.requestSlice(t,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const i=Xl(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);ct(r)&&(r=yield r),oe(r),$l(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||t<this.reader.fileSize;){let i=this.reader.requestSlice(t,4);if(ct(i)&&(i=yield i),t+=4,null===i)throw new Error(`Metadata block at position ${t} is too small! Corrupted file.`);oe(i);const r=vl(i),n=Pl(i),s=0!==(128&r);switch(127&r){case Si.STREAMINFO:{let e=this.reader.requestSlice(t,n);if(ct(e)&&(e=yield e),oe(e),null===e)throw new Error(`StreamInfo block at position ${t} is too small! Corrupted file.`);const i=Tl(e,34),r=new Bt(i),s=r.readBits(16),a=r.readBits(16),o=r.readBits(24),l=r.readBits(24),c=r.readBits(20),u=r.readBits(3)+1;r.readBits(5);const d=r.readBits(36);r.skipBits(128);const h=new Uint8Array(42);h.set(new Uint8Array([102,76,97,67]),0),h.set(new Uint8Array([128,0,0,34]),4),h.set(i,8),this.audioInfo={numberOfChannels:u,sampleRate:c,totalSamples:d,minimumBlockSize:s,maximumBlockSize:a,minimumFrameSize:o,maximumFrameSize:l,description:h},this.trackBacking=new bs(this);break}case Si.VORBIS_COMMENT:{let e=this.reader.requestSlice(t,n);ct(e)&&(e=yield e),oe(e),Ii(Tl(e,n),this.metadataTags);break}case Si.PICTURE:{let i=this.reader.requestSlice(t,n);ct(i)&&(i=yield i),oe(i);const r=Cl(i),s=Cl(i),a=pe.decode(Tl(i,s)),o=Cl(i),l=pe.decode(Tl(i,o));i.skip(16);const c=Cl(i),u=Tl(i,c);null!=(e=this.metadataTags).images||(e.images=[]),this.metadataTags.images.push({data:u,mimeType:a,kind:3===r?"coverFront":4===r?"coverBack":"unknown",description:l});break}}if(t+=n,s){this.lastLoadedPos=t;break}}if(!this.audioInfo)throw new Error("Missing STREAMINFO metadata block! Corrupted FLAC file.")}))()})}readNextFlacFrame(e){return Y(this,arguments,function*({startPos:e,isFirstPacket:t}){oe(this.audioInfo);const i=this.audioInfo.maximumBlockSize*this.audioInfo.numberOfChannels*4+16+2,r=this.audioInfo.minimumFrameSize||10,n=(this.audioInfo.maximumFrameSize||i)+16,s=yield this.reader.requestSliceRange(e,16,n);if(!s)return null;const a=this.readFlacFrameHeader({slice:s,isFirstPacket:t});if(!a)return null;for(s.filePos=e+r;;){if(s.filePos>s.end-6)return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:s.end-e,isLastFrame:!0};if(255===vl(s)){const t=s.filePos;if(vl(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-a.num!==1){s.filePos=t;continue}}else if(r.num-a.num!==a.blockSize){s.filePos=t;continue}return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:i,isLastFrame:!1}}}})}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=Tl(e,4),n=new Bt(r);if(32764!==n.readBits(15))return null;if(null===this.blockingBit){oe(t);const e=n.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){oe(!t);if(1!==n.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");oe(!t);if(0!==n.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*q(2,e):6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?q(2,e):null)(n.readBits(4));if(!s)return null;oe(this.audioInfo);const a=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(n.readBits(4),this.audioInfo.sampleRate);if(!a)return null;n.readBits(4),n.readBits(3);if(0!==n.readBits(1))return null;const o=(e=>{let t=0;const i=new Bt(Tl(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],n=t-1,s=new Bt(Tl(e,n)),a=8-t-1;for(let o=0;o<a;o++)r.unshift(i.readBits(1));for(let o=0;o<n;o++)for(let e=0;e<8;e++){const t=s.readBits(1);e<2||r.unshift(t)}return r.reduce((e,t,i)=>e|t<<i,0)})(e),l=((e,t)=>"uncommon-u16"===t?Sl(e)+1:"uncommon-u8"===t?vl(e)+1:"number"===typeof t?t:(Oe(t),void oe(!1)))(e,s),c=((e,t)=>"uncommon-u16"===t?Sl(e):"uncommon-u16-10"===t?10*Sl(e):"uncommon-u8"===t?vl(e):"number"===typeof t?t:null)(e,a);if(null===c)return null;if(c!==this.audioInfo.sampleRate)return null;const u=e.filePos-i,d=vl(e);e.skip(-u),e.skip(-1);const h=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(Tl(e,u));return d!==h?null:{num:o,blockSize:l,sampleRate:c}}advanceReader(){return Y(this,null,function*(){yield this.readMetadata(),oe(null!==this.lastLoadedPos),oe(this.audioInfo);const e=this.lastLoadedPos,t=yield this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)})}}class bs{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return We}getTimeResolution(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return oe(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}})}getPacket(e,t){return Y(this,null,function*(){if(oe(this.demuxer.audioInfo),e<0)return null;const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){yield this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],n=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(n+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);yield this.demuxer.advanceReader()}}finally{i()}})}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}getPacketAtIndex(e,t){return Y(this,null,function*(){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.byteSize)}oe(this.demuxer.audioInfo);const n=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new Tr(r,"key",n,s,e,i.byteSize)})}getFirstPacket(e){return Y(this,null,function*(){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)})}}const Ts=9e4,vs=q(2,33),ws=188,Ss="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",Ps=new Set([133,134,162]),Is=new Set;class xs extends yr{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=this.reader.requestSlice(0,205);ct(e)&&(e=yield e),oe(e);const t=Tl(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=ws;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,n=!1,s=!1;for(;;){const e=yield this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=yield this.readSection(i,!0,!s);if(!t)break;const a=3,o=32;let l=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i);l=2===e.readBits(8)}}if(0!==t.pid||n)if(t.pid!==r&&!l||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=Bs(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(yield this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new As(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,yield r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=$t(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];oe(t);const i=Jt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const n=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;n>0&&s>0&&(n>s?(e.info.squarePixelWidth=Math.round(e.info.width*n/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/n))),e.info.colorSpace={primaries:ye[i.colourPrimaries],transfer:Te[i.transferCharacteristics],matrix:we[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=ni(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===Lt.SPS_NUT).nalUnits[0];oe(t);const i=ri(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:ye[i.colourPrimaries],transfer:Te[i.transferCharacteristics],matrix:we[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:tr({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(yield r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=yl.tempFromBytes(r.suppliedPacket.data),i=ms(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=_t[i.channelConfiguration],e.info.sampleRate=Et[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=Cl(yl.tempFromBytes(r.suppliedPacket.data)),i=fr(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=kr(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=Ci(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=xi[t.acmod]+t.lfeon,e.info.sampleRate=Mt[t.fscod]}else if("eac3"===e.info.codec){const t=_i(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=Ri(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Fi(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=qi(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:rr({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const n=e.readBits(10),l=e.pos+8*n;let c=!1;for(;e.pos<l;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(5===t&&i>=4){const t=e.readBits(32);c||(c=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=l;8*(r+a)-e.pos>o;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),n=e.pos+8*r;let s=!1,a=!1,o=!1;for(;e.pos<n;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(106===t)s=!0;else if(122===t||204===t)a=!0;else if(123===t)o=!0;else if(5===t&&i>=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let l=null;const u=c&&Ps.has(t)?130:t;switch(u){case 27:case 36:l={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",l={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:a?l={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?l={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(l={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:Is.has(t)||(Pt._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),Is.add(t))}l&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:l,referencePesPackets:[]})}s=!0}else{const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+a)-e.pos>o;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");n=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!n)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const a of this.elementaryStreams)a.initialized&&("video"===a.info.type?this.trackBackingEntries.push(new _s(a)):this.trackBackingEntries.push(new Rs(a)))}))()})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackingEntries})}getMetadataTags(){return Y(this,null,function*(){return{}})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(yield Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null}))))})}readSection(e,t,i=!1){return Y(this,null,function*(){let r=e,n=e;const s=[];let a,o=0,l=null,c=!0,u=0;for(;;){const e=yield this.readPacket(n);if(n+=this.packetStride,!e)break;if(l){if(e.pid!==l.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;l=e}const a=!!(2&e.adaptationFieldControl),d=!!(1&e.adaptationFieldControl);let h=0;if(a&&(h=1+e.body[0],e===l&&h>1&&(u=e.body[1]>>6&1)),d&&(0===h?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(h)),o+=e.body.byteLength-h)),r=n,!t&&o>=64){c=!1;break}if(-1!==_e(this.sectionEndPositions,r,e=>e)){c=!1;break}}if(c){const e=Re(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!l)return null;if(1===s.length)a=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);a=new Uint8Array(e);let t=0;for(const i of s)a.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:l.pid,payload:a,randomAccessIndicator:u}})}readPacketHeader(e){return Y(this,null,function*(){let t=this.reader.requestSlice(e,4);if(ct(t)&&(t=yield t),!t)return null;if(71!==vl(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=Sl(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:vl(t)>>4&3}})}readPacket(e){return Y(this,null,function*(){let t=this.reader.requestSlice(e,ws);if(ct(t)&&(t=yield t),!t)return null;const i=Tl(t,ws);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}})}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=vs-t?-vs:vs}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e<t?e+i:e}}const Cs=(e,t,i)=>{if(t.payload.byteLength<3)return null;const r=new Bt(t.payload);if(1!==r.readBits(24))return null;const n=r.readBits(8);if(r.skipBits(16),188===n||190===n||191===n||240===n||241===n||255===n||242===n||248===n)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let a=null;if(2===s||3===s)a=0,r.skipBits(4),a+=r.readBits(3)*(1<<30),r.skipBits(1),a+=32768*r.readBits(15),r.skipBits(1),a+=r.readBits(15),a=e.normalizeTimestamp(a);else if(i)throw new Error(Ss);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:a,randomAccessIndicator:t.randomAccessIndicator}},Bs=(e,t,i)=>{oe(null!==t.endPos);const r=Cs(e,t,i);if(!r)return null;const n=new Bt(t.payload);n.skipBits(32);const s=n.readBits(16);n.skipBits(16);const a=n.readBits(8),o=n.pos+8*a;n.pos=o;const l=o/8;oe(Number.isInteger(l));const c=t.payload.subarray(l,s>0?6+s:t.payload.byteLength);return V(H({},r),{data:c})};class Es{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,oe(r instanceof Es),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return We}getDisposition(){return V(H({},Ct),{primary:!1})}getTimeResolution(){return Ts}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new Tr(i.metadataOnly?br:e.data,r,e.pts/Ts,Math.max(t/Ts,0),e.sequenceNumber,e.data.byteLength)}getFirstPacket(e){return Y(this,null,function*(){const t=this.elementaryStream.firstSection;oe(t);const i=Bs(this.elementaryStream.demuxer,t,!0);oe(i);const r=new As(this.elementaryStream,i),n=new Ms(this,r),s=yield n.readNext();if(!s)return null;const a=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(a,n),this.packetSectionStarts.set(a,s.packet.sectionStartPos),a})}getNextPacket(e,t){return Y(this,null,function*(){let i=this.packetBuffers.get(e);if(i){const r=yield i.readNext();if(!r)return null;this.packetBuffers.delete(e);const n=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(n,i),this.packetSectionStarts.set(n,r.packet.sectionStartPos),n}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const n=this.elementaryStream.demuxer,s=yield n.readSection(r,!0);oe(s);const a=Bs(n,s,!0);oe(a);const o=new As(this.elementaryStream,a);i=new Ms(this,o);const l=e.sequenceNumber;for(;;){const e=yield i.readNext();if(!e)return null;if(e.packet.sequenceNumber>l){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}})}getNextKeyPacket(e,t){return Y(this,null,function*(){let i=e;for(;;){if(i=yield this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}})}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}doPacketLookup(e,t,i){return Y(this,null,function*(){var r,n,s,a,o,l;const c=He(e*Ts),u=this.elementaryStream.demuxer,{reader:d,seekChunkSize:h}=u,f=this.elementaryStream.pid,m=(e,t,i)=>Y(this,null,function*(){let r=e;for(;r<t;){const e=yield u.readPacketHeader(r);if(!e)return null;if(e.pid===f&&1===e.payloadUnitStartIndicator){const e=yield u.readSection(r,i);if(!e)return null;const t=Cs(u,e,!1);if(t&&null!==t.pts)return{pesPacketHeader:t,section:e}}r+=u.packetStride}return null}),p=this.elementaryStream.firstSection;oe(p);const g=Cs(u,p,!0);if(oe(g),c<g.pts)return null;let k;const y=this.elementaryStream.referencePesPackets,b=Re(y,c,e=>e.pts),T=-1!==b?y[b]:null;if(T&&c-T.pts<45e3)k=T.sectionStartPos;else{let e=0;if(null!==d.fileSize){const t=Math.ceil(d.fileSize/h);if(t>1){let i=0,r=t-1;for(e=i;i<=r;){const t=Math.floor((i+r)/2),n=Ke(t*h,u.packetStride)+g.sectionStartPos,s=n+h,a=yield m(n,s,!1);a?a.pesPacketHeader.pts<=c?(e=t,i=t+1):r=t-1:r=t-1}}}k=Ke(e*h,u.packetStride)+g.sectionStartPos}const v=yield m(k,null!=(r=d.fileSize)?r:1/0,!1);let w=null!=(n=null==v?void 0:v.pesPacketHeader)?n:null;w||(w=g);const S=this.getReorderSize(),P=(e,t)=>Y(this,null,function*(){var r,n;const s=yield u.readSection(e,!0);oe(s);const a=Bs(u,s,!0);oe(a);const o=new As(this.elementaryStream,a),l=new Ms(this,o);for(;;){if((null!=(n=null==(r=ce(l.presentationOrderPackets))?void 0:r.pts)?n:-1/0)>=c)break;if(!(yield l.readNextPacket()))break}const d=Ne(l.presentationOrderPackets,t);if(-1===d)return null;const h=l.presentationOrderPackets[d],f=0===d?0:h.pts-l.presentationOrderPackets[d-1].pts;for(;l.decodeOrderPackets[0]!==h;)l.decodeOrderPackets.shift();l.lastDuration=f;const m=yield l.readNext();oe(m);const p=this.createEncodedPacket(m.packet,m.duration,i);return this.packetBuffers.set(p,l),this.packetSectionStarts.set(p,m.packet.sectionStartPos),p});if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=w.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){if(e.pts>c)break e;w=e,Fs(this.elementaryStream,w);break}}}e+=u.packetStride}}e:for(let e=0;e<S+1;e++){let e=w.sectionStartPos-u.packetStride;for(;e>=u.packetOffset;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){w=e;break}}}e-=u.packetStride}}return P(w.sectionStartPos,e=>e.pts<=c)}{let e=k,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let r=null;const n=e<=g.sectionStartPos;let k,y=null;if(n)k=g,y=p;else{const t=yield m(e,null!=(s=d.fileSize)?s:1/0,i);k=null!=(a=null==t?void 0:t.pesPacketHeader)?a:null,y=null!=(o=null==t?void 0:t.section)?o:null}let b=!1,T=0;e:for(;k&&!(null!==t&&k.sectionStartPos>=t);){if(k.pts<=c){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===k.randomAccessIndicator;else{oe(y);const t=Bs(u,y,!0);oe(t);const i=new As(this.elementaryStream,t);yield i.markNextPacket(),e=1===(null==(l=i.suppliedPacket)?void 0:l.randomAccessIndicator)}e&&(r=k)}if(k.pts>c&&(b=!0),b&&(T++,T>S))break;let e=k.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,i);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){k=e,y=t,Fs(this.elementaryStream,k);break}}}e+=u.packetStride}}if(r){let e=r;if(0===T)e:for(let r=0;r<S;r++){let t=e.sectionStartPos-u.packetStride;for(;t>=u.packetOffset;){const r=yield u.readPacketHeader(t);if(!r)break e;if(r.pid===f&&1===r.payloadUnitStartIndicator){const r=yield u.readSection(t,i);if(r){const t=Cs(u,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=u.packetStride}}const t=yield P(e.sectionStartPos,e=>e.pts<=c&&1===e.randomAccessIndicator);return oe(t),t}if(n)return null;t=e,e=Math.max(Ke(e-g.sectionStartPos-h,u.packetStride)+g.sectionStartPos,g.sectionStartPos)}}})}}class _s extends Es{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}getColorSpace(){return Y(this,null,function*(){return this.elementaryStream.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return!1})}getDecoderConfig(){return Y(this,null,function*(){return oe(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Rs extends Es{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){return oe(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const Fs=(e,t)=>{const i=e.referencePesPackets,r=Re(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const n=i[r];if(t.pts<=n.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-n.sectionStartPos<s)return!1;if(r<i.length-1){const e=i[r+1];if(e.pts<t.pts)return!1;if(e.sectionStartPos-t.sectionStartPos<s)return!1}}return i.splice(r+1,0,t),!0};class As{constructor(e,t){this.currentPos=0,this.pesPackets=[],this.currentPesPacketIndex=0,this.currentPesPacketPos=0,this.endPos=0,this.lastSuppliedPesPacket=null,this.nextPts=null,this.suppliedPacket=null,this.elementaryStream=e,this.pid=e.pid,this.demuxer=e.demuxer,this.startingPesPacket=t}ensureBuffered(e){const t=this.endPos-this.currentPos;return t>=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return oe(e),e}bufferData(e){return Y(this,null,function*(){const t=this.endPos+e;for(;this.endPos<t;){let e;if(0===this.pesPackets.length)e=this.startingPesPacket;else{let t=ce(this.pesPackets).sectionEndPos;for(oe(null!==t);;){const i=yield this.demuxer.readPacketHeader(t);if(!i)return;if(i.pid===this.pid){const i=yield this.demuxer.readSection(t,!0);if(!i)return;const r=Bs(this.demuxer,i,!1);if(r){e=r;break}}t+=this.demuxer.packetStride}}this.pesPackets.push(e),this.endPos+=e.data.byteLength}})}readBytes(e){const t=this.getCurrentPesPacket(),i=this.currentPos-this.currentPesPacketPos,r=i+e;if(this.currentPos+=e,r<=t.data.byteLength)return t.data.subarray(i,r);const n=new Uint8Array(e);n.set(t.data.subarray(i));let s=t.data.byteLength-i;for(;;){this.advanceCurrentPacket();const t=this.getCurrentPesPacket(),i=e-s;if(i<=t.data.byteLength){n.set(t.data.subarray(0,i),s);break}n.set(t.data,s),s+=t.data.byteLength}return n}readU8(){let e=this.getCurrentPesPacket();const t=this.currentPos-this.currentPesPacketPos;return this.currentPos++,t<e.data.byteLength?e.data[t]:(this.advanceCurrentPacket(),e=this.getCurrentPesPacket(),e.data[0])}seekTo(e){if(e!==this.currentPos){if(e<this.currentPos)for(;e<this.currentPesPacketPos;){this.currentPesPacketIndex--;const e=this.getCurrentPesPacket();this.currentPesPacketPos-=e.data.byteLength}else for(;;){const t=this.getCurrentPesPacket();if(e<this.currentPesPacketPos+t.data.byteLength)break;this.currentPesPacketPos+=t.data.byteLength,this.currentPesPacketIndex++}this.currentPos=e}}skip(e){this.seekTo(this.currentPos+e)}advanceCurrentPacket(){this.currentPesPacketPos+=this.getCurrentPesPacket().data.byteLength,this.currentPesPacketIndex++}markNextPacket(){return Y(this,null,function*(){var e,t,i;oe(!this.suppliedPacket);const r=this.elementaryStream;if("video"===r.info.type){const e=r.info.codec,t=1024;if("avc"!==e&&"hevc"!==e)throw new Error("Unhandled.");const i="avc"===e?1:2;let n=null,s=!1,a=0;for(;;){let r=this.ensureBuffered(t);if(ct(r)&&(r=yield r),0===r)break;const o=this.currentPos,l=this.readBytes(r),c=l.byteLength;let u=0;for(;u<c;){const t=l.indexOf(0,u);if(-1===t||t>=c)break;u=t;const r=o+u;if(u+3>=c){this.seekTo(r);break}const d=l[u+1],h=l[u+2],f=l[u+3];let m=0;if(0===d&&0===h&&1===f?m=4:0===d&&1===h&&(m=3),0===m){u++;continue}const p=r;null!=n||(n=p);const g=u+m,k=g+i,y=6;if(k+("avc"===e?y:1)>c){this.seekTo(r);break}const b=l[g];let T,v,w;if("avc"===e)T=Ht(b),v=T===Nt.NON_IDR_SLICE||T===Nt.SLICE_DPA||T===Nt.IDR,w=T===Nt.SEI||T===Nt.SPS||T===Nt.PPS||T===Nt.AUD;else{T=ii(b);if(((1&b)<<5|l[g+1]>>3)>0){u+=m;continue}v=T<=Lt.RASL_R||T>=Lt.BLA_W_LP&&T<=21,w=T>=Lt.VPS_NUT&&T<=37||T===Lt.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let S=!1;if(v){let t;if("avc"===e){const e=l.subarray(k,k+y),i=ue(new Bt(e));t=!s||i<=a,a=i}else t=l[k]>>7===1;t&&(s?S=!0:s=!0)}else w&&s&&(S=!0);if(S){const e=p-n;return this.seekTo(n),this.supplyPacket(e,0)}u+=m}if(r<t)break}if(null!==n&&this.endPos>n){const e=this.endPos-n;return this.seekTo(n),this.supplyPacket(e,0)}}else{const n=r.info.codec,s=128;for(;;){let a=this.ensureBuffered(s);ct(a)&&(a=yield a);const o=this.currentPos;for(;this.currentPos-o<a;){const s=this.readU8();if("aac"===n){if(255!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(9);if(ct(t)&&(t=yield t),t<9)return;const i=this.readBytes(9),n=ms(yl.tempFromBytes(i));if(n){this.seekTo(e);let t=this.ensureBuffered(n.frameLength);return ct(t)&&(t=yield t),this.supplyPacket(t,Math.round(9216e4/r.info.sampleRate))}this.seekTo(e+1)}else{if("mp3"!==n){if("ac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(ct(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=i[4]>>6,a=63&i[4];if(3===n||a>37){this.seekTo(e+1);continue}const o=Bi[3*a+n];oe(void 0!==o),this.seekTo(e),t=this.ensureBuffered(o),ct(t)&&(t=yield t);const l=Math.round(13824e4/r.info.sampleRate);return this.supplyPacket(t,l)}if("eac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(ct(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=2*(((7&i[2])<<8|i[3])+1),a=3===i[4]>>6?3:i[4]>>4&3,o=Ei[a];this.seekTo(e),t=this.ensureBuffered(n),ct(t)&&(t=yield t);const l=256*o,c=Math.round(l*Ts/r.info.sampleRate);return this.supplyPacket(t,c)}if("dts"===n){if(127!==s&&100!==s)continue;this.skip(-1);const n=this.currentPos;let a=this.ensureBuffered(18);if(ct(a)&&(a=yield a),a<18)return;const o=this.readBytes(18),l=Hi(o);let c=l?null:Vi(o);if(!l&&!c){this.seekTo(n+1);continue}if(c&&!c.asset){this.seekTo(n);const t=Math.min(c.frameSize,4096);let i=this.ensureBuffered(t);ct(i)&&(i=yield i),c=null!=(e=Vi(this.readBytes(i)))?e:c}let u=l?l.frameSize:c.frameSize;if(l){let e=4*Math.ceil(l.frameSize/4);for(;;){this.seekTo(n);const t=e+10;let i=this.ensureBuffered(t);if(ct(i)&&(i=yield i),i<t)break;this.seekTo(n+e);const r=Vi(this.readBytes(10));if(!r)break;e+=r.frameSize,u=e}}const d=null!=(i=null==l?void 0:l.sampleCount)?i:null==(t=c.asset)?void 0:t.sampleCount;if(void 0===d){this.seekTo(n+1);continue}this.seekTo(n),a=this.ensureBuffered(u),ct(a)&&(a=yield a);const h=Math.round(d*Ts/r.info.sampleRate);return this.supplyPacket(a,h)}throw new Error("Unhandled.")}{if(255!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(4);if(ct(t)&&(t=yield t),t<4)return;const i=this.readBytes(4),n=me(i).getUint32(0),a=fr(n,null);if(a.header){this.seekTo(e);let t=this.ensureBuffered(a.header.totalSize);ct(t)&&(t=yield t);const i=a.header.audioSamplesInFrame*Ts/r.info.sampleRate;return this.supplyPacket(t,Math.round(i))}this.seekTo(e+1)}}}if(a<s)break}}})}supplyPacket(e,t){const i=this.getCurrentPesPacket();let r;if(this.lastSuppliedPesPacket===i)oe(null!==this.nextPts),r=this.nextPts;else{if(null===i.pts)throw new Error(Ss);r=i.pts,Fs(this.elementaryStream,i)}this.lastSuppliedPesPacket=i,this.nextPts=r+t;const n=i.sectionStartPos,s=n+(this.currentPos-this.currentPesPacketPos),a=this.readBytes(e);let o=i.randomAccessIndicator;if(0===o&&!this.elementaryStream.canBeTrustedWithKeyPackets)if("audio"===this.elementaryStream.info.type)o=1;else if(this.elementaryStream.info.decoderConfig){const e="key"===wi(this.elementaryStream.info.codec,this.elementaryStream.info.decoderConfig,a);o=Number(e)}this.suppliedPacket={pts:r,data:a,sequenceNumber:s,sectionStartPos:n,randomAccessIndicator:o},this.pesPackets.splice(0,this.currentPesPacketIndex),this.currentPesPacketIndex=0}}class Ms{constructor(e,t){this.decodeOrderPackets=[],this.reorderBuffer=[],this.presentationOrderPackets=[],this.reachedEnd=!1,this.lastDuration=0,this.backing=e,this.context=t,this.reorderSize=e.getReorderSize(),oe(this.reorderSize>=0)}readNext(){return Y(this,null,function*(){if(0===this.decodeOrderPackets.length){if(!(yield this.readNextPacket()))return null}yield this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(oe(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}})}readNextPacket(){return Y(this,null,function*(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||(yield this.context.markNextPacket()),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)})}ensureCurrentPacketHasNext(){return Y(this,null,function*(){const e=this.decodeOrderPackets[0];for(oe(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(yield this.readNextPacket()))break}})}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;i<this.reorderBuffer.length;i++)this.reorderBuffer[i].pts<this.reorderBuffer[e].pts&&(e=i);const t=this.reorderBuffer[e];this.presentationOrderPackets.push(t),this.reorderBuffer.splice(e,1)}}flushReorderBuffer(){this.reorderBuffer.sort((e,t)=>e.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const Ds="application/vnd.apple.mpegurl",Ns="#EXT-X-STREAM-INF:",Os="#EXT-X-I-FRAME-STREAM-INF:",Ls="#EXT-X-MEDIA:",zs="#EXTINF:",Us="#EXT-X-MAP:",qs="#EXT-X-KEY:",Ws="#EXT-X-MEDIA-SEQUENCE:",Hs="#EXT-X-BYTERANGE:",Vs="#EXT-X-PROGRAM-DATE-TIME:",js="#EXT-X-TARGETDURATION:",Ks="#EXT-X-PLAYLIST-TYPE:",Xs=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class $s{constructor(e){this._attributes={};let t="",i="",r=!1,n=!1;for(let s=0;s<e.length;s++){const a=e[s];'"'===a?n=!n:"="!==a||r||n?","!==a||n?r?i+=a:t+=a:(t&&(this._attributes[t.trim().toLowerCase()]=i),t="",i="",r=!1):r=!0}t&&(this._attributes[t.trim().toLowerCase()]=i)}get(e){var t;return null!=(t=this._attributes[e.toLowerCase()])?t:null}getAsNumber(e){const t=this.get(e);if(null===t)return null;const i=Number(t);return Number.isFinite(i)?i:null}merge(e){Object.assign(this._attributes,e._attributes)}}class Gs{constructor(e,t,i){this.nextInputCacheAge=0,this.inputCache=[],this.trackBackingsPromise=null,this.firstSegment=null,this.firstSegmentFirstTimestamps=new WeakMap,this.firstTimestampCache=new WeakMap,this.input=e,this.path=t,this.trackDeclarations=i}getDurationFromMetadata(e){return Y(this,null,function*(){const t=yield this.getSegmentAt(1/0,{skipLiveWait:e.skipLiveWait});return t?t.timestamp+t.duration:null})}getUnixTimeForTimestamp(e){return Y(this,null,function*(){let t=yield this.getSegmentAt(e,{});if(null!=t||(t=yield this.getFirstSegment({})),!t||null===t.unixEpochTimestamp)return null;const i=e-t.timestamp;return t.unixEpochTimestamp+i})}getTrackBackings(){return Y(this,null,function*(){var e;return null!=(e=this.trackBackingsPromise)?e:this.trackBackingsPromise=(()=>Y(this,null,function*(){const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=gt(e,e=>"video"===e.getType())+1;e.push(new Ys(this,t,i))}else if("audio"===t.type){const i=gt(e,e=>"audio"===e.getType())+1;e.push(new Js(this,t,i))}}else{if(this.firstSegment=yield this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=yield t.getTracks();for(const r of i)if("video"===r.type){const t=gt(e,e=>"video"===e.getType())+1;e.push(new Ys(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=gt(e,e=>"audio"===e.getType())+1;e.push(new Js(this,{id:e.length+1,type:"audio"},t))}}return e}))()})}getFirstTimestampForInput(e){return Y(this,null,function*(){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=yield e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i})}getMediaOffset(e,t){return Y(this,null,function*(){var i;const r=null!=(i=e.firstSegment)?i:e;let n;if(this.firstSegmentFirstTimestamps.has(r))n=this.firstSegmentFirstTimestamps.get(r);else{const e=this.getInputForSegment(r);n=yield this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(r,n)}if(r===e)return r.timestamp-n;const s=yield this.getFirstTimestampForInput(t),a=e.timestamp-r.timestamp,o=s-n-a;return Math.abs(o)<=Math.min(.25,a)?r.timestamp-n:e.timestamp-s})}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class Qs{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>Y(this,null,function*(){var e,t;if(null!=(e=this.segmentedInput).firstSegment||(e.firstSegment=yield this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let i=this.segmentedInput.firstSegment,r=null;for(;i;){const e=this.segmentedInput.getInputForSegment(i);if(r=null!=(t=(yield e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number))?t:null,r)break;i=yield this.segmentedInput.getNextSegment(i,{})}if(!r)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=r,this.firstSegment=i}))()}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}getHasOnlyKeyPackets(){return this.delegate(()=>{var e,t,i;return null!=(i=null==(t=(e=this.firstInputTrack._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:null})}getPairingMask(){return BigInt("1")}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}isRelativeToUnixEpoch(){return Y(this,null,function*(){return yield this.hydrate(),oe(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp})}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}createAdjustedPacket(e,t,i){return Y(this,null,function*(){oe(e.sequenceNumber>=0),oe(this.segmentedInput.firstSegment);const r=yield this.segmentedInput.getMediaOffset(t,i.input),n=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:je(e.timestamp+r,yield i.getTimeResolution()),sequenceNumber:Math.floor(1e8*n)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s})}getFirstPacket(e){return Y(this,null,function*(){var t;yield this.hydrate(),oe(this.firstInputTrack),oe(this.firstSegment);let i=this.firstInputTrack,r=this.firstSegment;for(;;){if(i){const t=yield i._backing.getFirstPacket(e);if(t)return this.createAdjustedPacket(t,r,i)}if(r=yield this.segmentedInput.getNextSegment(r,{skipLiveWait:e.skipLiveWait}),!r)break;const n=this.segmentedInput.getInputForSegment(r);i=null!=(t=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number))?t:null}return null})}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}_getNextInternal(e,t,i){return Y(this,null,function*(){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const n=i?yield r.track._backing.getNextKeyPacket(r.sourcePacket,t):yield r.track._backing.getNextPacket(r.sourcePacket,t);if(n)return this.createAdjustedPacket(n,r.segment,r.track);let s=r.segment;for(;;){const e=yield this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),n=(yield i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!n){s=e;continue}const a=yield n._backing.getFirstPacket(t);return a?this.createAdjustedPacket(a,e,n):null}})}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}_getPacketInternal(e,t,i){return Y(this,null,function*(){let r=yield this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(yield this.hydrate();r;){const n=this.segmentedInput.getInputForSegment(r),s=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const a=yield this.segmentedInput.getMediaOffset(r,n),o=e-a,l=i?yield s._backing.getKeyPacket(o,t):yield s._backing.getPacket(o,t);if(l)return this.createAdjustedPacket(l,r,s);r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null})}}class Ys extends Qs{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}getColorSpace(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())})}canBeTransparent(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())})}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}class Js extends Qs{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}ft();const Zs=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class ea extends vt{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}getSizeOrNull(){return Y(this,null,function*(){var e;if(this._disposed)throw new gl;return null!=(e=this._sizePromise)?e:this._sizePromise=(()=>Y(this,null,function*(){let e=this._getFileSize();return void 0!==e||(yield this._read(0,1,0,Zs),e=this._getFileSize(),oe(void 0!==e)),e}))()})}getSize(){return Y(this,null,function*(){if(this._disposed)throw new gl;const e=yield this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e})}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new ga(this,e,t)}_dispatchRead(e,t){var i;null==(i=this.onread)||i.call(this,e,t),this._emit("read",{start:e,end:t})}ref(){return new ta(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class ta{constructor(e){var t;if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),null==(t=e._refFinalizationRegistry)||t.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){var e;if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const t=this.source;oe(t._refCount>0),t._decrementRefCount(),null==(e=t._refFinalizationRegistry)||e.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class ia extends ea{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof ea||e instanceof ta))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof ea?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return ct(t)?t.then(i):i(t)}}const ra=(e,t)=>e.path===t.path;class na extends ia{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof ea?e.ref():e;return this._root=t,this._rootRequest=null,t};ct(e)?this._rootRequest=e.then(t):(t(e),oe(this._root))}if(this._rootRequest)return this._rootRequest.then(n=>n.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const sa="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class aa extends ea{constructor(e,t={}){var i;if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!mt(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new pa({maxCacheSize:null!=(i=t.maxCacheSize)?i:8*q(2,20),maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),null==sa||sa.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:ma.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}_runWorker(e){return Y(this,null,function*(){oe(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!it()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),null==sa||sa.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos<e.targetPos&&!e.aborted;)if(t){const{done:i,value:r}=yield t.read();if(i)throw this._orchestrator.onWorkerFinished(e),new Error("Blob reader stopped unexpectedly before all requested data was read.");if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+r.length),this._orchestrator.supplyWorkerData(e,r)}else{const t=yield this._blob.slice(e.currentPos,e.targetPos).arrayBuffer();if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+t.byteLength),this._orchestrator.supplyWorkerData(e,new Uint8Array(t))}this._orchestrator.signalWorkerStoppedRunning(e),e.aborted&&(yield null==t?void 0:t.cancel())})}_dispose(){this._orchestrator.dispose()}}const oa=.5*q(2,20),la=(e,t,i)=>{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch(r){}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return Pt._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(q(2,e-2),16)},ca=new Set;class ua extends ia{constructor(e,t={}){var i,r,n,s;if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!mt(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new ua(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=null!=(i=t.getRetryDelay)?i:la,this._requestInit=H({},t.requestInit);let a=null;if(null==(r=t.requestInit)?void 0:r.headers){const e=H({},Je(t.requestInit.headers)),i=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==i&&(a=e[i],delete e[i],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){null!=a||(a=t);const i=new Request(e);i.headers.delete("Range"),this._url=i}}if(null!==a){const e=ha(a);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new pa({maxCacheSize:null!=(n=t.maxCacheSize)?n:64*q(2,20),maxWorkerCount:null!=(s=t.parallelism)?s:2,runWorker:this._runWorker.bind(this),prefetchProfile:ma.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){var e;if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const t=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===t?null!==this._length?this._length:null:qe(t-this._offset,0,null!=(e=this._length)?e:1/0)}_read(e,t,i,r){var n;if(null!==this._length&&t>this._length)return null;const s=this._offset,a=this._sequentialBacking?this._sequentialBacking._read(s+e,s+t):this._orchestrator.read(s+e,s+t,Math.max(s+i,s),s+Math.min(r,null!=(n=this._length)?n:1/0)),o=e=>e?(e.offset-=this._offset,e):null;return ct(a)?a.then(o):o(a)}_runWorker(e){return Y(this,null,function*(){for(var t;;){const r=new AbortController,n=yield Ze(null!=(t=this._options.fetchFn)?t:fetch,this._url,Ye(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:r.signal}),this._getRetryDelay,()=>this._disposed);if(!n.ok)throw new Error(`Error fetching ${String(this._url)}: ${n.status} ${n.statusText}`);n.redirected&&(this.rootPath=n.url);e:if(null===this._orchestrator.fileSize&&(206===n.status||"basic"===n.type&&!n.headers.has("Content-Encoding"))){const t=n.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=n.headers.get("Content-Length");if(i){const t=206===n.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!n.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==n.status){if(this._sequentialBacking)return void n.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||ca.has(e.origin)||(Pt._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),ca.add(e.origin))}return void this._transitionToSequentialMode(n.body)}const s=n.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return r.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let t;try{t=yield s.read()}catch(i){if(this._disposed)throw i;const e=this._getRetryDelay(1,i,this._url);if(null!==e){Pt._error("Error while reading response stream. Attempting to resume.",i),yield Tt(1e3*e);break}throw i}if(e.aborted)continue;const{done:n,value:a}=t;if(n){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+a.length),this._orchestrator.supplyWorkerData(e,a)}}})}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const n=new ReadableStream({pull:e=>Y(this,null,function*(){for(var n;;){let a;try{a=yield t.read()}catch(s){if(this._disposed)throw s;const e=this._getRetryDelay(1,s,this._url);if(null===e)throw s;Pt._error("Error while reading response stream. Attempting to resume.",s),yield Tt(1e3*e);const a=yield Ze(null!=(n=this._options.fetchFn)?n:fetch,this._url,Ye(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!a.ok)throw new Error(`Error fetching ${String(this._url)}: ${a.status} ${a.statusText}`);if(!a.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=a.body.getReader(),r=206===a.status?0:i;continue}if(a.done)return void e.close();let o=a.value;if(r>0){const e=Math.min(r,o.length);r-=e,o=o.subarray(e)}if(0!==o.length)return i+=o.length,void e.enqueue(o)}}),cancel:()=>t.cancel()}),s=new fa(n,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const a=new Set;for(const o of this._orchestrator.workers){for(const e of o.pendingSlices)a.add(e);o.aborted=!0,o.pendingSlices.length=0}for(const o of this._orchestrator.queuedReads)for(const e of o.pendingSlices)a.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const o of a){const e=s._read(o.start,o.start+o.bytes.length);ct(e)?e.then(e=>{e?(oe(e.offset===o.start),o.resolve(e.bytes)):o.resolve(null)},e=>o.reject(e)):(oe(null===e),o.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const da=/^bytes=(\d+)-(\d*)$/,ha=e=>{const t=da.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&r<i?null:{offset:i,length:null!==r?r-i+1:null}};class fa extends ea{constructor(e,t={}){var i;if(!(e instanceof ReadableStream))throw new TypeError("stream must be a ReadableStream.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!mt(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");super(),this._reader=null,this._cache=[],this._pendingSlices=[],this._currentIndex=0,this._targetIndex=0,this._maxRequestedIndex=0,this._endIndex=null,this._pulling=!1,this._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. With ReadableStreamSource, you must access the data more sequentially or increase the size of its cache.",this._stream=e,this._maxCacheSize=null!=(i=t.maxCacheSize)?i:32*q(2,20),this._handleUnhandledError=t.handleUnhandledError}_getFileSize(){return this._endIndex}_read(e,t){if(null!==this._endIndex&&t>this._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=Re(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let n=e;const s=new Uint8Array(t-e);if(-1!==i)for(let c=i;c<this._cache.length;c++){const i=this._cache[c];if(i.start>=t)break;const r=Math.max(e,i.start);r>n&&this._throwDueToCacheMiss();const a=Math.min(t,i.end);r<a&&(s.set(i.bytes.subarray(r-i.start,a-i.start),r-e),n=a)}if(n===t)return{bytes:s,view:me(s),offset:e};this._currentIndex>n&&this._throwDueToCacheMiss();const{promise:a,resolve:o,reject:l}=Ae();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:l}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),a}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}_pull(){return Y(this,null,function*(){for(null!=this._reader||(this._reader=this._stream.getReader());this._currentIndex<this._targetIndex&&!this._disposed;){const{done:e,value:t}=yield this._reader.read();if(e){for(const e of this._pendingSlices)e.resolve(null);this._pendingSlices.length=0,this._endIndex=this._currentIndex;break}const i=this._currentIndex,r=this._currentIndex+t.byteLength;this._dispatchRead(i,r);for(let n=0;n<this._pendingSlices.length;n++){const e=this._pendingSlices[n],s=Math.max(i,e.start),a=Math.min(r,e.end);s<a&&(e.bytes.set(t.subarray(s-i,a-i),s-e.start),a===e.end&&(e.resolve({bytes:e.bytes,view:me(e.bytes),offset:e.start}),this._pendingSlices.splice(n,1),n--))}for(this._cache.push({start:i,end:r,bytes:t,view:me(t),age:0});this._cache.length>0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1})}_dispose(){var e;for(const t of this._pendingSlices)t.reject(new gl);this._pendingSlices.length=0,this._cache.length=0,null==(e=this._reader)||e.cancel()}}const ma={fileSystem:(e,t)=>{const i=q(2,16);return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=q(2,16);e=Math.max(0,Math.floor((e-r)/r)*r);for(const n of i){const i=8*q(2,20),r=Math.max((n.startPos+n.targetPos)/2,n.targetPos-i);if(dt(e,t,r,n.targetPos)){const e=n.targetPos-n.startPos,r=Math.ceil((e+1)/i)*i,s=q(2,Math.ceil(Math.log2(e+1))),a=Math.min(s,r);t=Math.max(t,n.startPos+a)}}return{start:e,end:t=Math.max(t,e+oa)}}};class pa{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){var n;oe(!this.disposed);const s=this.options.prefetchProfile(e,t,this.workers),a=Math.max(s.start,i),o=Math.min(s.end,null!=(n=this.fileSize)?n:1/0,r);oe(a<=e&&t<=o);let l=null;const c=Re(this.cache,e,e=>e.start),u=-1!==c?this.cache[c]:null;u&&u.start<=e&&t<=u.end&&(u.age=this.nextAge++,l={bytes:u.bytes,view:u.view,offset:u.start});const d=Re(this.cache,a,e=>e.start),h=l?null:new Uint8Array(t-e);let f=0,m=a;const p=[];if(-1!==d){for(let i=d;i<this.cache.length;i++){const r=this.cache[i];if(r.start>=o)break;if(r.end<=a)continue;const n=Math.max(a,r.start),s=Math.min(o,r.end);if(oe(n<=s),m<n&&p.push({start:m,end:n}),m=s,h){const i=Math.max(e,r.start),n=Math.min(t,r.end);if(i<n){const t=i-e;h.set(r.bytes.subarray(i-r.start,n-r.start),t),t===f&&(f=n-e)}}r.age=this.nextAge++}m<o&&p.push({start:m,end:o})}else p.push({start:a,end:o});if(h&&f>=h.length&&(l={bytes:h,view:me(h),offset:e}),0===p.length)return oe(l),l;const{promise:g,resolve:k,reject:y}=Ae(),b=[];for(const v of p){const i=Math.max(e,v.start),r=Math.min(t,v.end);i===v.start&&r===v.end?b.push(v):i<r&&b.push({start:i,end:r})}const T=h&&{start:e,bytes:h,holes:b,resolve:k,reject:y};e:for(const v of p){for(const i of this.workers){if(this.checkHoleAgainstWorker(i,v,T?[T]:[])){this.checkQueuedReadsAgainstWorker(i);continue e}}const e=v.end<o||null!==this.fileSize,t=this.createWorker(v.start,v.end,e);if(t)T&&(t.pendingSlices=[T]),this.runWorker(t);else{let t=Re(this.queuedReads,v.start,e=>e.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&v.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,v.end),i.strictTarget&&(i.strictTarget=e),T&&i.pendingSlices.push(T)):(t++,i={hole:{start:v.start,end:v.end},strictTarget:e,pendingSlices:T?[T]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1<this.queuedReads.length;){const e=this.queuedReads[t+1];if(e.hole.start>i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return l?g.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(oe(h),l=g.then(t=>t&&{bytes:t,view:me(t),offset:e})),l}checkHoleAgainstWorker(e,t,i){const r=q(2,17);if(dt(t.start-r,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t<i.length;t++){const r=i[t];e.pendingSlices.includes(r)||e.pendingSlices.push(r)}return e.running||this.runWorker(e),!0}return!1}checkQueuedReadsAgainstWorker(e){let t=!1;for(let i=0;i<this.queuedReads.length;i++){const r=this.queuedReads[i];if(this.checkHoleAgainstWorker(e,r.hole,r.pendingSlices))this.queuedReads.splice(i,1),i--,t=!0;else if(t)break}}createWorker(e,t,i){var r,n;if(this.workers.length>=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i<this.workers.length;i++){const r=this.workers[i];r.running||0!==r.pendingSlices.length||e&&!(r.age<e.age)||(t=i,e=r)}if(!e)return null;oe(null!==t),oe(0===e.pendingSlices.length),this.workers.splice(t,1),null==(n=(r=this.options).onIdleWorkerRemoved)||n.call(r,e)}const s={startPos:e,currentPos:e,targetPos:t,strictTarget:i,running:!1,aborted:this.disposed,pendingSlices:[],age:this.nextAge++};return this.workers.push(s),s}runWorker(e){oe(!e.running),oe(e.currentPos<e.targetPos),e.running=!0,e.age=this.nextAge++,this.options.runWorker(e).catch(t=>{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;r<this.queuedReads.length;r++){this.queuedReads[r].age<this.queuedReads[e].age&&(e=r)}const t=this.queuedReads[e],i=this.createWorker(t.hole.start,t.hole.end,t.strictTarget);if(!i)return;this.queuedReads.splice(e,1),i.pendingSlices=t.pendingSlices,this.runWorker(i)}})}supplyWorkerData(e,t){var i,r;oe(!e.aborted);const n=e.currentPos,s=n+t.length;this.insertIntoCache({start:n,end:s,bytes:t,view:me(t),age:this.nextAge++}),e.currentPos+=t.length,e.currentPos>e.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;a<e.pendingSlices.length;a++){const i=e.pendingSlices[a],r=Math.max(n,i.start),o=Math.min(s,i.start+i.bytes.length);r<o&&i.bytes.set(t.subarray(r-n,o-n),r-i.start);for(let e=0;e<i.holes.length;e++){const t=i.holes[e];n<=t.start&&s>t.start&&(t.start=s),t.end<=t.start&&(i.holes.splice(e,1),e--)}0===i.holes.length&&(i.resolve(i.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;a<this.workers.length;a++){const t=this.workers[a];e===t||t.running||dt(n,s,t.currentPos,t.targetPos)&&(this.workers.splice(a,1),null==(r=(i=this.options).onIdleWorkerRemoved)||r.call(i,t),a--)}}supplyFileSize(e){oe(null===this.fileSize),this.fileSize=e;for(const t of this.workers){t.targetPos=Math.min(t.targetPos,e),t.strictTarget=!0;for(let i=0;i<t.pendingSlices.length;i++){const r=t.pendingSlices[i];for(const n of r.holes)if(n.end>e){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t<this.queuedReads.length;t++){const i=this.queuedReads[t];if(i.hole.start>=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t<i.pendingSlices.length;t++){const r=i.pendingSlices[t];r.start>=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){var t,i;const r=this.workers.indexOf(e);oe(-1!==r),e.running=!1,this.workers.splice(r,1),null==(i=(t=this.options).onIdleWorkerRemoved)||i.call(t,e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const n of e.pendingSlices)n.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=Re(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=me(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i<this.cache.length;i++){const t=this.cache[i];if(e.end<=t.start)break;if(e.end>=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=me(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;i<this.cache.length;i++){const r=this.cache[i];r.age<t.age&&(e=i,t=r)}if(this.currentCacheSize-t.bytes.length<=this.options.maxCacheSize)break;this.cache.splice(e,1),this.currentCacheSize-=t.bytes.length}}dispose(){var e,t;for(const i of this.workers){for(const e of i.pendingSlices)e.reject(new gl);i.pendingSlices.length=0,i.aborted=!0,i.running||null==(t=(e=this.options).onIdleWorkerRemoved)||t.call(e,i)}for(const i of this.queuedReads)for(const e of i.pendingSlices)e.reject(new gl);this.workers.length=0,this.cache.length=0,this.queuedReads.length=0,this.disposed=!0}}class ga extends ea{constructor(e,t,i){if(super(),this._ref=null,e._disposed)throw new Error("Cannot create a slice of a disposed source.");this._baseSource=e,this._offset=t,this._length=null!=i?i:null}_getFileSize(){var e;const t=this._baseSource._getFileSize();return void 0===t?null!==this._length?this._length:void 0:null===t?null!==this._length?this._length:null:qe(t-this._offset,0,null!=(e=this._length)?e:1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const n=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return ct(n)?n.then(s):s(n)}_dispose(){var e;null==(e=this._ref)||e.free()}ref(){return null!=this._ref||(this._ref=this._baseSource.ref()),super.ref()}}var ka=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,n;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},ya=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const ba=/^0[xX][0-9a-fA-F]+$/,Ta=/^data:.*;base64,/i;class va extends Gs{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){var e;return null!=(e=this.currentUpdateSegmentsPromise)?e:this.currentUpdateSegmentsPromise=(()=>Y(this,null,function*(){try{const e=this.getRemainingWaitTimeMs();e>0&&(yield Tt(e)),this.lastSegmentUpdateTime=performance.now(),yield this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}}))()}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}updateSegments(){return Y(this,null,function*(){var e,t,i,r,n,s,a,o;let l=this.nextLines;if(this.nextLines=null,!l){const e={stack:[],error:void 0,hasError:!1};try{const t=ka(e,yield this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),i=new kl(t.source),r=yield i.requestEntireFile();oe(r),l=Ol(r,r.length,{ignore:Xs}),t.source instanceof ia&&(this.rootPath=t.source.rootPath)}catch(x){e.error=x,e.hasError=!0}finally{ya(e)}}const c=!1!==(null==(e=this.input._formatOptions.hls)?void 0:e.offsetTimestampsByDateTime);let u=!1,d=0,h=null,f=null,m=null,p=0,g=null,k=null,y=null,b=null,T=null,v=null,w=!1,S=null!=(t=ce(this.segments))?t:null;const P=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},I=e=>{p=e,S&&(oe(null!==S.sequenceNumber),S.sequenceNumber<e&&(d=S.timestamp+S.duration,g=S.firstSegment,k=S.initSegment,T=S.lastProgramDateTimeSeconds,h=null!==S.unixEpochTimestamp?S.unixEpochTimestamp+S.duration:null,S=null))};for(let C=0;C<l.length;C++){const e=l[C];if(u){if(!e.startsWith("#")){if(!S){if(null===f)throw new Error("Invalid M3U8 file; a segment must be preceded by an #EXTINF tag.");let t=m;if(t&&"AES-128"===t.method&&!t.iv){const e=new Uint8Array(Er),i=me(e);i.setUint32(8,Math.floor(p/q(2,32))),i.setUint32(12,p),t=V(H({},t),{iv:e})}const n={path:pt(this.rootPath,e),offset:null!=(i=null==b?void 0:b.offset)?i:0,length:null!=(r=null==b?void 0:b.length)?r:null},s={timestamp:d,unixEpochTimestamp:h,firstSegment:g,sequenceNumber:p,location:n,duration:f,encryption:t,initSegment:k,lastProgramDateTimeSeconds:T};null!=g||(g=s),d+=f,null!==h&&(h+=f),this.segments.push(s)}f=null,null===b?y=null:b=null,I(p+1)}if(e.startsWith(zs)){if(S){w=!0;continue}w||(null===T&&p>0&&null!==v&&(d=p*v),w=!0);const t=e.slice(8),i=t.indexOf(","),r=-1===i?t:t.slice(0,i),n=Number(r);if(!Number.isFinite(n)||n<0)throw new Error(`Invalid #EXTINF tag duration '${r}'.`);f=n}else if(e.startsWith(Us)){const t=new $s(e.slice(11)),i=t.get("uri");if(!i)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const r=t.get("byterange");let a=null;if(null!==r&&(a=P(r)),a&&null===a.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!S){const e={path:pt(this.rootPath,i),offset:null!=(n=null==a?void 0:a.offset)?n:0,length:null!=(s=null==a?void 0:a.length)?s:null};if("AES-128"===(null==m?void 0:m.method)&&!m.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");k={timestamp:d,unixEpochTimestamp:h,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:m,initSegment:null,lastProgramDateTimeSeconds:T}}f=null,null===b?y=null:b=null}else if(e.startsWith(qs)){const t=new $s(e.slice(11)),i=t.get("method");if("NONE"===i)m=null;else if("AES-128"===i){const e=t.get("uri");if(!e)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=t.get("iv");if(r){if(!ba.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Er);for(let t=0;t<Er;t++){const r=-32+t;i[t]=parseInt(e.slice(r,r+2),16)}}const n=null!=(a=t.get("keyformat"))?a:"identity";if("identity"!==n)throw new Error("For AES-128 encryption, only the 'identity' KEYFORMAT is currently supported. If you think other formats should be supported, please raise an issue.");m={method:"AES-128",keyUri:pt(this.rootPath,e),iv:i,keyFormat:n}}else{if("SAMPLE-AES"!==i&&"SAMPLE-AES-CTR"!==i)throw new Error(`Unsupported encryption method '${i}'. If you think this method should be supported, please raise an issue.`);{const e=t.get("uri");if(!e)throw new Error(`Invalid #EXT-X-KEY: ${i} requires a URI attribute.`);if("identity"===(null!=(o=t.get("keyformat"))?o:"identity"))throw new Error("For SAMPLE-AES and SAMPLE-AES-CTR encryption, the 'identity' KEYFORMAT is not supported. If you think this format should be supported, please raise an issue.");let r=null;if(Ta.test(e)){const t=e.indexOf(","),i=ht(e.slice(t+1));if(i.length>=8&&112===i[4]&&115===i[5]&&115===i[6]&&104===i[7]){const e=me(i).getUint32(0);r=vr(i.subarray(8,Math.min(e,i.length)))}}m={method:i,psshBox:r}}}}else if(e.startsWith(Ws)){const t=e.slice(22),i=Number(t);if(!Number.isInteger(i)||i<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${t}'.`);I(i)}else if(e.startsWith(Hs)){const t=P(e.slice(17));if(null===t.offset){if(null===y)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");t.offset=y}b=t,y=t.offset+t.length}else if(e.startsWith(Vs)){if(S)continue;const t=e.slice(25),i=Date.parse(t);if(!Number.isFinite(i))continue;const r=i/1e3;if(T===r)continue;if(null===T&&this.segments.length>0){const e=ce(this.segments),t=r-(e.timestamp+e.duration);for(const i of this.segments)i.unixEpochTimestamp=i.timestamp+t,c&&(i.timestamp=i.unixEpochTimestamp)}T=r,h=r,c&&(d=r)}else if("#EXT-X-DISCONTINUITY"===e)g=null;else if(e.startsWith(js)){const t=e.slice(22),i=Number(t);if(!Number.isFinite(i)||i<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${t}'.`);this.refreshInterval=i,v=i}else{if("#EXT-X-ENDLIST"===e){this.streamHasEnded=!0;break}if(e.startsWith(Ks)){"vod"===e.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==e)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");u=!0}}if(!u)throw new Error("Invalid M3U8 file; no #EXTM3U header.")})}getFirstSegment(){return Y(this,null,function*(){var e;return 0===this.segments.length&&(yield this.runUpdateSegments()),null!=(e=this.segments[0])?e:null})}getSegmentAt(e,t){return Y(this,null,function*(){0===this.segments.length&&(yield this.runUpdateSegments());let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=Re(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r<this.segments.length-1||this.streamHasEnded||i)return this.segments[r];const n=this.segments[r];if(e<n.timestamp+n.duration)return n;yield this.runUpdateSegments(),t.skipLiveWait&&(i=!0)}})}getNextSegment(e,t){return Y(this,null,function*(){const i=this.segments.indexOf(e);oe(-1!==i);const r=i+1;let n=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){if(r<this.segments.length)return this.segments[r];if(this.streamHasEnded||n)return null;yield this.runUpdateSegments(),t.skipLiveWait&&(n=!0)}})}getPreviousSegment(e){return Y(this,null,function*(){var t;const i=this.segments.indexOf(e);return oe(-1!==i),null!=(t=this.segments[i-1])?t:null})}getInputForSegment(e){var t,i;const r=e,n=this.inputCache.find(e=>e.segment===r);if(n)return n.age=this.nextInputCacheAge++,n.input;let s=null;(r.initSegment||r.firstSegment)&&(s=this.getInputForSegment(null!=(t=r.initSegment)?t:r.firstSegment));const a=V(H({},this.input._formatOptions),{isobmff:V(H({},this.input._formatOptions.isobmff),{resolveKeyId:(null==(i=this.input._formatOptions.isobmff)?void 0:i.resolveKeyId)&&(e=>{if(!r.encryption||"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method||!r.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let t=e.psshBoxes;const{psshBox:i}=r.encryption;return null!==i.keyIds&&!i.keyIds.includes(e.keyId)||t.some(e=>wr(e,i))||(t=[...t,i]),this.input._formatOptions.isobmff.resolveKeyId(V(H({},e),{psshBoxes:t}))})})}),o=new ml({source:new na(r.location.path,e=>Y(this,null,function*(){var t,i;oe(e.isRoot);const n=V(H({},e),{isRoot:!1});let s;const a=r.location.offset>0||null!==r.location.length;if(r.encryption&&"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method)if("AES-128"===r.encryption.method){const e=r.encryption;oe(e.iv);let t=yield this.input._getSourceCached(n);if(a){const e=t.source.slice(r.location.offset,null!=(i=r.location.length)?i:void 0).ref();t.free(),t=e}const o=((e,t,i)=>{let r=!1,n=0;const s=q(2,16),a=new Lr;return new ReadableStream({pull:o=>Y(null,null,function*(){r||(a.init(yield t()),r=!0);const l=s+16;let c=e.requestSliceRange(n,0,l);if(ct(c)&&(c=yield c),!c||0===c.length)throw new Error("Invalid ciphertext.");const u=c.length;if(u%16!==0)throw new Error("Invalid ciphertext.");const d=u===l?u-16:u,h=Tl(c,d),f=new Uint8Array(d);for(let e=0;e<d;e+=16)a.in.set(h.subarray(e,e+16)),a.decrypt(),f.set(a.out,e);if(d<u)o.enqueue(f),n+=d;else{const e=f[d-1];if(0===e||e>16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=f.subarray(0,d-e);o.enqueue(t),o.close(),i()}}),cancel:()=>{i()}})})(new kl(t.source),()=>Y(this,null,function*(){const t={stack:[],error:void 0,hasError:!1};try{const i=ka(t,yield this.input._getSourceCached({path:e.keyUri,isRoot:!1},fl),!1),r=new kl(i.source),n=yield r.requestSlice(0,Er);if(!n)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:Tl(n,Er),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{ya(t)}}),()=>{t.free()});s=new fa(o).ref()}else oe(!1);else if(s=yield this.input._getSourceCached(n),a){const e=s.source.slice(r.location.offset,null!=(t=r.location.length)?t:void 0).ref();s.free(),s=e}return s})),formats:this.input._formats.filter(e=>!(e instanceof qa)),initInput:null!=s?s:void 0,formatOptions:a});o._onFormatDetermined=e=>{var t,i;if(("SAMPLE-AES"===(null==(t=r.encryption)?void 0:t.method)||"SAMPLE-AES-CTR"===(null==(i=r.encryption)?void 0:i.method))&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:r,input:o,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=kt(this.inputCache,e=>e.age);oe(-1!==e),this.inputCache.splice(e,1)}return o}getLiveRefreshInterval(){return Y(this,null,function*(){return 0===this.getRemainingWaitTimeMs()&&(yield this.runUpdateSegments()),this.streamHasEnded?null:this.refreshInterval})}}class wa extends yr{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){oe(this.input._rootSource instanceof ia);const e=yield this.input._reader.requestEntireFile();oe(e);const t=Ol(e,e.length,{ignore:Xs}),{rootPath:i}=this.input._rootSource,r=[],n=[];for(let u=1;u<t.length;u++){const e=t[u];if(e.startsWith(Ns)){const n=u,s=t[++u];if(void 0===s)throw new Error("Incorrect M3U8 file; a line must follow the #EXT-X-STREAM-INF tag.");const a=pt(i,s),o=new $s(e.slice(18));if(null===o.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");r.push({fullPath:a,attributes:o,lineNumber:n,hasOnlyKeyPackets:!1})}else if(e.startsWith(Os)){const t=new $s(e.slice(26)),n=t.get("uri");if(null===n)throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a URI attribute.");if(null===t.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");const s=pt(i,n);r.push({fullPath:s,attributes:t,lineNumber:u,hasOnlyKeyPackets:!0})}else if(e.startsWith(Ls)){const t=new $s(e.slice(13));if(null===t.get("type"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a TYPE attribute.");if(null===t.get("group-id"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a GROUP-ID attribute.");let r=null;const s=t.get("uri");null!==s&&(r=pt(i,s)),n.push({fullPath:r,attributes:t,lineNumber:u})}else if("#EXT-X-I-FRAMES-ONLY"===e);else if(e.startsWith(zs)){const e=new va(this,i,null,t);return this.segmentedInputs=[e],this.hasMasterPlaylist=!1,void(this.trackBackings=yield e.getTrackBackings())}}const s=[...new Set(n.filter(e=>"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],a=[...new Set(n.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=yield Promise.all(r.map((e,t)=>Y(this,null,function*(){var r,o,l,c;const u=[],d=e.attributes.get("codecs");let h;if(d)h=d.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=yield t.getTrackBackings(),r=yield Promise.all(i.map(e=>Y(this,null,function*(){return{track:e,codec:yield e.getCodec()}})));h=yield Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const f=e.attributes.get("video"),m=e.attributes.get("audio"),p=h.some(e=>Ki.includes(or(e))),g=h.some(e=>$i.includes(or(e)));if(null!==f&&!p){if(!s.includes(f))throw new Error(`Invalid M3U8 file; variant stream references video group "${f}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===f&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=pt(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});oe(null!==a),h.push(a)}}if(null!==m&&!g){if(!a.includes(m))throw new Error(`Invalid M3U8 file; variant stream references audio group "${m}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===m&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=pt(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});oe(null!==a),h.push(a)}}h=[...new Set(h)];let k=null,y=null;const b=e.attributes.getAsNumber("bandwidth");oe(null!==b);const T=e.attributes.getAsNumber("average-bandwidth"),v=e.attributes.get("name");for(const i of h){const d=or(i);if(null!==d)if(Ki.includes(d)){if(null!==k)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");k=i;const a=e.attributes.get("video");if(null===a){const i=e.attributes.get("resolution");let r=null,n=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(r=Number(e[1]),n=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:We,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:k,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:b,averageBitrate:T,name:v,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:r,height:n}})}else{if(!s.includes(a))throw new Error(`Invalid M3U8 file; variant stream references video group "${a}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==a||"video"!==s.toLowerCase())continue;const l=null!=(r=i.attributes.get("resolution"))?r:e.attributes.get("resolution");let c=null,d=null;if(l){const e=l.match(/^(\d+)x(\d+)$/);e&&(c=Number(e[1]),d=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:xa(i.attributes),autoselect:xa(i.attributes)||Ca(i.attributes),languageCode:Ba(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(o=i.fullPath)?o:e.fullPath,fullCodecString:k,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:c,height:d}})}}}else if($i.includes(d)){if(null!==y)throw new Error("Unsupported M3U8 file; multiple audio codecs found in the CODECS attribute of a variant stream.");y=i;const r=e.attributes.get("audio");if(null===r){const i=e.attributes.get("channels"),r=null!==i?Number(i.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:We,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:y,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:b,averageBitrate:T,name:v,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==r&&Number.isInteger(r)&&r>0?r:null}})}else{if(!a.includes(r))throw new Error(`Invalid M3U8 file; variant stream references audio group "${r}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==r||"audio"!==s.toLowerCase())continue;const a=null!=(l=i.attributes.get("channels"))?l:e.attributes.get("channels"),o=null!==a?Number(a.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:xa(i.attributes),autoselect:xa(i.attributes)||Ca(i.attributes),languageCode:Ba(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(c=i.fullPath)?c:e.fullPath,fullCodecString:y,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==o&&Number.isInteger(o)&&o>0?o:null}})}}}}return u}))),l=[],c=e=>{var t,i;const r=l.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);r?(r.pairingMask|=e.pairingMask,r.default||(r.default=e.default),r.autoselect||(r.autoselect=e.autoselect),r.lineNumber=Math.min(r.lineNumber,e.lineNumber),null!==e.peakBitrate&&(r.peakBitrate=Math.max(null!=(t=r.peakBitrate)?t:-1/0,e.peakBitrate)),null!==e.averageBitrate&&(r.averageBitrate=Math.max(null!=(i=r.averageBitrate)?i:-1/0,e.averageBitrate)),r.languageCode===We&&(r.languageCode=e.languageCode)):(e.id=l.length+1,l.push(e))};for(const u of o)for(const e of u)c(e);l.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const u of l)"video"===u.info.type?this.trackBackings.push(new Pa(u)):this.trackBackings.push(new Ia(u));this.internalTracks=l}))()}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),oe(this.trackBackings),this.trackBackings})}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new va(this,e,i,null),this.segmentedInputs.push(t),t}getMetadataTags(){return Y(this,null,function*(){return{}})}getMimeType(){return Y(this,null,function*(){return Ds})}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class Sa{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>Y(this,null,function*(){const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(yield e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof Pa){for(const r of i)if((yield r.getCodec())===this.getCodec()){t=r;break}}else{oe(this instanceof Ia);for(const e of i)if((yield e.getCodec())===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t}))()}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return V(H({},Ct),{default:this.internalTrack.autoselect,primary:this.internalTrack.default})}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){oe(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}getDurationFromMetadata(e){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)})}getLiveRefreshInterval(){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()})}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}getFirstPacket(e){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)})}getPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)})}getKeyPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)})}getNextPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)})}getNextKeyPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)})}}class Pa extends Sa{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return or(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}getColorSpace(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getColorSpace()})}canBeTransparent(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.canBeTransparent()})}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getDecoderConfig()})}}class Ia extends Sa{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return or(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return Y(this,null,function*(){return yield this.hydrate(),this.backingAudioTrack.getDecoderConfig()})}}const xa=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},Ca=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},Ba=e=>{if(null===e)return We;const t=e.split("-")[0];return t||We};class Ea{constructor(){this._isIsobmff=!1}}class _a extends Ea{constructor(){super(...arguments),this._isIsobmff=!0}_getMajorBrand(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,12);if(ct(t)&&(t=yield t),!t)return null;t.skip(4);const i=Nl(t,4);return"ftyp"!==i&&"styp"!==i?null:Nl(t,4)})}_createDemuxer(e){return new zr(e)}}class Ra extends _a{_canReadInput(e){return Y(this,null,function*(){const t=yield this._getMajorBrand(e);if(null!==t)return"qt  "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(ct(t)&&(t=yield t),!t)return!1;let r=Cl(t),n=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(ct(t)&&(t=yield t),!t)return!1;r=Rl(t),n=16}if(r<n)return!1;const s=Nl(t,4);if("moof"===s||"sidx"===s)return!0;if("emsg"!==s&&"prft"!==s&&"free"!==s)return!1;i+=r}return!1})}get name(){return"MP4"}get mimeType(){return"video/mp4"}}class Fa extends _a{_canReadInput(e){return Y(this,null,function*(){return"qt  "===(yield this._getMajorBrand(e))})}get name(){return"QuickTime File Format"}get mimeType(){return"video/quicktime"}}class Aa extends Ea{isSupportedEBMLOfDocType(e,t){return Y(this,null,function*(){let i=e._reader.requestSlice(0,cn);if(ct(i)&&(i=yield i),!i)return!1;const r=un(i);if(null===r)return!1;if(r<1||r>8)return!1;if(hn(i,r)!==nn.EBML)return!1;const n=mn(i);if("number"!==typeof n)return!1;let s=e._reader.requestSlice(i.filePos,n);if(ct(s)&&(s=yield s),!s)return!1;const a=i.filePos;for(;s.filePos<=a+n-2;){const e=pn(s);if(!e)break;const{id:i,size:r}=e,n=s.filePos;if(void 0===r)return!1;switch(i){case nn.EBMLVersion:if(1!==hn(s,r))return!1;break;case nn.EBMLReadVersion:if(1!==hn(s,r))return!1;break;case nn.DocType:if(gn(s,r)!==t)return!1;break;case nn.DocTypeVersion:if(hn(s,r)>4)return!1}s.filePos=n+r}return!0})}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new Vn(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class Ma extends Aa{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Da extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}const i=yield $n(e._reader,t,t+4096);if(!i)return!1;const r=i.header,n=hr(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+n,4);if(ct(s)&&(s=yield s),!s)return!1;const a=Cl(s);if(a===ur||a===dr)return!0;t=i.startPos+i.header.totalSize;const o=yield $n(e._reader,t,t+4);if(!o)return!1;const l=o.header;return r.channel===l.channel&&r.sampleRate===l.sampleRate})}_createDemuxer(e){return new Gn(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class Na extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,12);if(ct(t)&&(t=yield t),!t)return!1;const i=Nl(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===Nl(t,4)})}_createDemuxer(e){return new ds(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class Oa extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,4);return ct(t)&&(t=yield t),!!t&&"OggS"===Nl(t,4)})}_createDemuxer(e){return new ss(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class La extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return ct(i)&&(i=yield i),!!i&&"fLaC"===Nl(i,4)})}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new ys(e)}}class za extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(ct(i)&&(i=yield i),!i)return!1;const r=ms(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),ct(i)&&(i=yield i),!i)return!1;const n=ms(i);return!!n&&(r.objectType===n.objectType&&r.samplingFrequencyIndex===n.samplingFrequencyIndex&&r.channelConfiguration===n.channelConfiguration)})}_createDemuxer(e){return new gs(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class Ua extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,205);if(ct(t)&&(t=yield t),!t)return!1;const i=Tl(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])})}_createDemuxer(e){return new xs(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class qa extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,7);if(ct(t)&&(t=yield t),!t)return!1;if(!("#EXTM3U"===Nl(t,7)))return!1;if(!(e._rootSource instanceof ia))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0})}_createDemuxer(e){return new wa(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Ds}}const Wa=new Ra,Ha=new Fa,Va=new Aa,ja=new Ma,Ka=new Da,Xa=new Na,$a=new Oa,Ga=new za,Qa=new La,Ya=new Ua,Ja=new qa,Za=[Ja,Wa,Ha,Va,ja,Xa,$a,Qa,Ka,Ga,Ya],eo=[Ja,Wa,Ha,Ka,Ga,Ya];var to=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});ft();let io=-1/0,ro=-1/0,no=null;"undefined"!==typeof FinalizationRegistry&&(no=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-io>=1e3&&(Pt._error("A VideoSample was garbage collected without first being closed. 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this.format&&this.format.includes("A")}constructor(e,t){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F;if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!oo.has(t.format))throw new TypeError("init.format must be one of: "+ao.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&bt(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=null!=(i=t.rotation)?i:0,this.timestamp=t.timestamp,this.duration=null!=(r=t.duration)?r:0;const m=null!=(n=t.layout)?n:bo(t.format,t.codedWidth,t.codedHeight);let p=null!=(s=t.colorSpace)?s:null;null===p&&(p="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:null!=(o=null==(a=t.visibleRect)?void 0:a.left)?o:0,top:null!=(c=null==(l=t.visibleRect)?void 0:l.top)?c:0,width:null!=(d=null==(u=t.visibleRect)?void 0:u.width)?d:t.codedWidth,height:null!=(f=null==(h=t.visibleRect)?void 0:h.height)?f:t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?fe(e):fe(e).slice(),this._layout=m,this.colorSpace=new mo(p)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==(null==t?void 0:t.rotation)&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==(null==t?void 0:t.timestamp)&&!Number.isFinite(null==t?void 0:t.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==(null==t?void 0:t.duration)&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==(null==t?void 0:t.visibleRect)&&bt(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:null!=(p=null==(m=e.visibleRect)?void 0:m.x)?p:0,top:null!=(k=null==(g=e.visibleRect)?void 0:g.y)?k:0,width:null!=(b=null==(y=e.visibleRect)?void 0:y.width)?b:e.codedWidth,height:null!=(v=null==(T=e.visibleRect)?void 0:T.height)?v:e.codedHeight},this.rotation=null!=(w=null==t?void 0:t.rotation)?w:0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=null!=(S=null==t?void 0:t.timestamp)?S:e.timestamp/1e6,this.duration=null!=(I=null==t?void 0:t.duration)?I:(null!=(P=e.duration)?P:0)/1e6,this.colorSpace=new mo(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&bt(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new lo(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*Qe),duration:Math.trunc((null!=(x=t.duration)?x:0)*Qe)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const n=null!=(C=t.visibleRect)?C:{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(n.width,n.height),a=s.getContext("2d",{alpha:nt(),willReadFrequently:!0});if(!a)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");a.drawImage(e,-n.left,-n.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:n.width,height:n.height},this.squarePixelWidth=n.width,this.squarePixelHeight=n.height,this.rotation=null!=(B=t.rotation)?B:0,this.timestamp=t.timestamp,this.duration=null!=(E=t.duration)?E:0,this.colorSpace=new mo({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof so))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!ao.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=null!=(_=t.rotation)?_:0,this.timestamp=t.timestamp,this.duration=null!=(R=t.duration)?R:0,this.colorSpace=e.getColorSpace()}this.encodeOptions=null!=(F=null==t?void 0:t.encodeOptions)?F:{},this.pixelAspectRatio=yt({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),null==no||no.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return oe(null!==this._data),this._data instanceof so?new lo(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):po(this._data)?new lo(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(oe(this._layout),new lo(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new lo(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(null==no||no.unregister(this),this._data instanceof so?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):po(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){var t;if(yo(e),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(t=e.format)?t:this.format))throw new Error("Cannot get allocation size when format is null.");if(po(this._data))return this._data.allocationSize(e);return vo(this,e).allocationSize}copyTo(e){return Y(this,arguments,function*(e,t={}){var i,r;if(!Ie(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer 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is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,yield this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},null!=(r=t.colorSpace)?r:"srgb"),!1);if(!(n instanceof lo))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(n.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${n.format}' instead.`);return yield n.copyTo(e,t)}catch(u){i.error=u,i.hasError=!0}finally{to(i)}}}const n=vo(this,t);oe(this.format);const s=fe(e);if(s.byteLength<n.allocationSize)throw new TypeError(`Destination buffer too small. Required: ${n.allocationSize}, Available: ${s.byteLength}`);const a=To(this.format);let o;if(this._data instanceof so){let e=this._data.getDataPlanes();if(ct(e)&&(e=yield e),!Array.isArray(e)||e.some(e=>!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');o=e}else if(this._data instanceof Uint8Array)oe(this._layout),oe(this._layout.length===a.length),o=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");oe(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);o=[{data:fe(t.data),stride:4*this.codedWidth}]}const l=[],c=a.length;for(let d=0;d<c;d++){const e=n.computedLayouts[d],t=o[d].stride,i=o[d].data;let r=e.sourceTop*t;r+=e.sourceLeftBytes;let a=e.destinationOffset;const c=e.sourceWidthBytes,u={offset:a,stride:e.destinationStride};for(let n=0;n<e.sourceHeight;n++){if(r+c>i.byteLength)throw new Error("Source buffer OOB read.");if(a+c>s.byteLength)throw new Error("Destination buffer OOB write.");const n=i.subarray(r,r+c);s.set(n,a),r+=t,a+=e.destinationStride}l.push(u)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),i=this.format.includes("X")&&t.format.includes("A");if(e||i)for(let t=0;t<n.allocationSize;t+=4){if(e){const e=s[t],i=s[t+2];s[t]=i,s[t+2]=e}i&&(s[t+3]=255)}}return l})}toVideoFrame(){if(this._closed)throw new Error("VideoSample is closed.");if(oe(null!==this._data),this._data instanceof so){if(null===this.format)throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if format is null.");const e=this._data.getDataPlanes();if(ct(e))throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if getDataPlanes() returns a promise.");const t=e.reduce((e,t)=>e+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const n=[];for(const s of e)i.set(s.data,r),n.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:n[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return po(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(oe(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,n,s,a,o,l){let c=0,u=0,d=this.displayWidth,h=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(c=t,u=i,d=r,h=n,f=s,m=a,void 0!==o?(p=o,g=l):(p=d,g=h)):(f=t,m=i,void 0!==r&&(p=r,g=n)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(c))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:c,sy:u,sWidth:d,sHeight:h}=this._rotateSourceRegion(c,u,d,h,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const T=this.rotation%180===0?1:p/g;e.scale(1/T,T),e.drawImage(k,c,u,d,h,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){var i,r,n,s,a,o,l,c,u;if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&ko(t.crop,"options.");const d=e.canvas.width,h=e.canvas.height,f=null!=(i=t.rotation)?i:this.rotation,[m,p]=f%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let g,k,y,b,T=t.crop;T&&(T=go(T,m,p));const{sx:v,sy:w,sWidth:S,sHeight:P}=this._rotateSourceRegion(null!=(n=null==(r=t.crop)?void 0:r.left)?n:0,null!=(a=null==(s=t.crop)?void 0:s.top)?a:0,null!=(l=null==(o=t.crop)?void 0:o.width)?l:m,null!=(u=null==(c=t.crop)?void 0:c.height)?u:p,f);if("fill"===t.fit)g=0,k=0,y=d,b=h;else{const[e,i]=t.crop?[t.crop.width,t.crop.height]:[m,p],r="contain"===t.fit?Math.min(d/e,h/i):Math.max(d/e,h/i);y=e*r,b=i*r,g=(d-y)/2,k=(h-b)/2}e.save();const I=f%180===0?1:y/b;e.translate(d/2,h/2),e.rotate(f*Math.PI/180),e.scale(1/I,I),e.translate(-d/2,-h/2),e.drawImage(this.toCanvasImageSource(),v,w,S,P,g,k,y,b),e.restore()}_rotateSourceRegion(e,t,i,r,n){return 90===n?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===n?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===n&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,n=e.height,[s,a]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,l=i.crop?i.crop.height:a;let c=0;2*r<o&&2*n<l&&(c=Math.floor(Math.log2(Math.min(o/r,l/n))));const u=r*q(2,c),d=n*q(2,c),{canvas:h,context:f,isNew:m}=c>0?fo(u,d):{canvas:e,context:t,isNew:i.targetIsFresh};f.imageSmoothingQuality="high",i.fillBlack?(f.fillStyle="black",f.fillRect(0,0,u,d)):m||f.clearRect(0,0,u,d),this.drawWithFit(f,{fit:i.fit,rotation:i.rotation,crop:i.crop}),f.globalCompositeOperation="copy";for(let p=c;p>1;p--){const e=r*q(2,p),t=n*q(2,p);f.drawImage(h,0,0,e,t,0,0,e/2,t/2)}f.globalCompositeOperation="source-over",c>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(h,0,0,2*r,2*n,0,0,r,n),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(oe(null!==this._data),this._data instanceof so||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}transform(e){return Y(this,null,function*(){var t,i,r,n,s;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&ko(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const a=le(this.rotation+(null!=(t=e.rotate)?t:0)),[o,l]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let c=e.crop;c&&(c=go(c,o,l));const u=c?c.width:o,d=c?c.height:l,h=u/d;let f,m;void 0!==e.width&&void 0===e.height?(f=e.width,m=f/h):void 0===e.width&&void 0!==e.height?(m=e.height,f=m*h):void 0!==e.width&&void 0!==e.height?(f=e.width,m=e.height):(f=u,m=d),f=Ve(f,null!=(i=e.roundDimensionsTo)?i:1),m=Ve(m,null!=(r=e.roundDimensionsTo)?r:1);const p={width:f,height:m,fit:null!=(n=e.fit)?n:"fill",rotation:a,crop:null!=c?c:{left:0,top:0,width:o,height:l},alpha:null!=(s=e.alpha)?s:"keep"};for(const e of co){let t=e(this,p);if(ct(t)&&(t=yield t),null!==t)return t}const{canvas:g,context:k,isNew:y}=fo(p.width,p.height);return this._drawWithFitAndMipmapping(g,k,{fit:p.fit,rotation:p.rotation,crop:p.crop,targetIsFresh:y,fillBlack:"discard"===p.alpha}),new lo(g,{timestamp:this.timestamp,duration:this.duration,rotation:0})})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const co=[],uo=[];let ho=0;const fo=(e,t)=>{for(const n of uo)if(n.canvas.width===e&&n.canvas.height===t)return n.age=ho++,{canvas:n.canvas,context:n.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return uo.length>=3&&uo.splice(kt(uo,e=>e.age),1),uo.push({canvas:i,context:r,age:ho++}),{canvas:i,context:r,isNew:!0}};class mo{constructor(e){var t,i,r,n;if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(ke);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(be);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(ve);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=null!=(t=null==e?void 0:e.primaries)?t:null,this.transfer=null!=(i=null==e?void 0:e.transfer)?i:null,this.matrix=null!=(r=null==e?void 0:e.matrix)?r:null,this.fullRange=null!=(n=null==e?void 0:e.fullRange)?n:null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const po=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,go=(e,t,i)=>{const r=Math.min(e.left,t),n=Math.min(e.top,i),s=Math.min(e.width,t-r),a=Math.min(e.height,i-n);return oe(s>=0),oe(a>=0),{left:r,top:n,width:s,height:a}},ko=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},yo=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},bo=(e,t,i)=>{const r=To(e),n=[];let s=0;for(const a of r){const e=Math.ceil(t/a.widthDivisor),r=Math.ceil(i/a.heightDivisor),o=e*a.sampleBytes,l=o*r;n.push({offset:s,stride:o}),s+=l}return n},To=e=>{const t=(e,t,i,r,n)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return n&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:Oe(e),oe(!1)}},vo=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,n=wo(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let a;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");a=t.format}else a=e.format;return Po(n,a,s)},wo=(e,t,i,r,n)=>{const s=H({},e);if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!So(n,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},So=(e,t)=>{if(null===e)return!0;const i=To(e);for(let r=0;r<i.length;r++){const e=i[r],n=e.widthDivisor,s=e.heightDivisor;if((t.x||0)%n!==0)return!1;if((t.y||0)%s!==0)return!1}return!0},Po=(e,t,i)=>{const r=To(t),n=r.length;if(void 0!==i&&i.length!==n)throw new TypeError(`Layout must have ${n} planes.`);let s=0;const a=[],o=[];for(let l=0;l<n;l++){const t=r[l],n=t.sampleBytes,c=t.widthDivisor,u=t.heightDivisor,d={destinationOffset:0,destinationStride:0,sourceTop:0,sourceHeight:0,sourceLeftBytes:0,sourceWidthBytes:0};if(d.sourceTop=Math.ceil(Math.trunc(e.y||0)/u),d.sourceHeight=Math.ceil(Math.trunc(e.height||0)/u),d.sourceLeftBytes=Math.floor(Math.trunc(e.x||0)/c)*n,d.sourceWidthBytes=Math.floor(Math.trunc(e.width||0)/c)*n,void 0!==i){const e=i[l];if(e.stride<d.sourceWidthBytes)throw new TypeError(`Stride for plane ${l} is too small.`);d.destinationOffset=e.offset,d.destinationStride=e.stride}else d.destinationOffset=s,d.destinationStride=d.sourceWidthBytes;const h=d.destinationStride*d.sourceHeight+d.destinationOffset;if(h>4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(h),s=Math.max(s,h);for(let e=0;e<l;e++){const t=a[e];if(!(o[l]<=t.destinationOffset||o[e]<=d.destinationOffset))throw new TypeError("Planes overlap.")}a.push(d)}return{allocationSize:s,computedLayouts:a}},Io=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]);class xo{constructor(){this._referenceCount=0}}class Co{get microsecondTimestamp(){return Math.trunc(Qe*this.timestamp)}get microsecondDuration(){return Math.trunc(Qe*this.duration)}constructor(e){if(this._closed=!1,Fo(e)){if(null===e.format)throw new TypeError("AudioData with null format is not supported.");this._data=e,this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=e.numberOfFrames,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp/1e6,this.duration=e.numberOfFrames/e.sampleRate}else if(e instanceof xo){if(this._data=e,e._referenceCount++,this.format=e.getFormat(),!Io.has(this.format))throw new TypeError("getFormat() must return an AudioSampleFormat.");if(this.sampleRate=e.getSampleRate(),!Number.isInteger(this.sampleRate)||this.sampleRate<=0)throw new TypeError("getSampleRate() must return a positive integer.");if(this.numberOfFrames=e.getNumberOfFrames(),!Number.isInteger(this.numberOfFrames)||this.numberOfFrames<0)throw new TypeError("getNumberOfFrames() must return a non-negative integer.");if(this.numberOfChannels=e.getNumberOfChannels(),!Number.isInteger(this.numberOfChannels)||this.numberOfChannels<=0)throw new TypeError("getNumberOfChannels() must return a positive integer.");if(this.timestamp=e.getTimestamp(),!Number.isFinite(this.timestamp))throw new TypeError("getTimestamp() must return a finite number.");this.duration=this.numberOfFrames/this.sampleRate}else{if(!e||"object"!==typeof e)throw new TypeError("Invalid AudioDataInit: must be an object.");if(!Io.has(e.format))throw new TypeError("Invalid AudioDataInit: invalid format.");if(!Number.isFinite(e.sampleRate)||e.sampleRate<=0)throw new TypeError("Invalid AudioDataInit: sampleRate must be > 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(null==e?void 0:e.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(Bo(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*Bo(this.format);if(i.byteLength<r)throw new TypeError("Invalid AudioDataInit: insufficient data size.");this._data=i}null==no||no.register(this,{type:"audio",data:this._data},this)}allocationSize(e){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(!Number.isInteger(e.planeIndex)||e.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==e.format&&!Io.has(e.format))throw new TypeError("Invalid format.");if(void 0!==e.frameOffset&&(!Number.isInteger(e.frameOffset)||e.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==e.frameCount&&(!Number.isInteger(e.frameCount)||e.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const r=null!=(t=e.format)?t:this.format,n=null!=(i=e.frameOffset)?i:0;if(n>=this.numberOfFrames)throw new RangeError("frameOffset out of range");const s=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-n;if(s>this.numberOfFrames-n)throw new RangeError("frameCount out of range");const a=Bo(r),o=Eo(r);if(o&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!o&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(o?s:s*this.numberOfChannels)*a}copyTo(e,t){if(!Ie(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!Io.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:n}=t;let{planeIndex:s}=t,a=this.format;const o=null!=i?i:this.format;if(!o)throw new Error("Destination format not determined");const l=this.numberOfFrames,c=this.numberOfChannels,u=null!=n?n:0;if(u>=l)throw new RangeError("frameOffset out of range");const d=void 0!==r?r:l-u;if(d>l-u)throw new RangeError("frameCount out of range");const h=Bo(o),f=Eo(o);if(f&&s>=c)throw new RangeError("planeIndex out of range");if(!f&&0!==s)throw new RangeError("planeIndex out of range");const m=(f?d:d*c)*h;if(e.byteLength<m)throw new RangeError("Destination buffer is too small");const p=me(e),g=Ro(o);if(Fo(this._data)){if(it()&&c>2&&o!==a)return void Ao(this._data,p,a,o,c,s,u,d);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:u,frameCount:d,format:o})}catch(w){if("f32-planar"===o)throw w;a="f32-planar"}}const k=_o(a),y=Bo(a),b=Eo(a);let T;if(this._data instanceof xo){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=l*y*(b?1:c);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(b)if(f)T=e(s),s=0;else{T=new Uint8Array(l*y*c);for(let t=0;t<c;t++){const i=e(t);T.set(i,t*l*y)}}else T=e(0)}else if(this._data instanceof Uint8Array)T=this._data;else if(oe("f32-planar"===a),f)T=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:s})),this._data.copyTo(T,{format:"f32-planar",planeIndex:s}),s=0;else{T=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:0})*c);for(let e=0;e<c;e++)this._data.copyTo(T.subarray(e*l*y,(e+1)*l*y),{format:"f32-planar",planeIndex:e})}const v=me(T);for(let S=0;S<d;S++)if(f){let e;e=b?(s*l+(S+u))*y:((S+u)*c+s)*y;g(p,S*h,k(v,e))}else for(let e=0;e<c;e++){let t;t=b?(e*l+(S+u))*y:((S+u)*c+e)*y;g(p,(S*c+e)*h,k(v,t))}}clone(){if(this._closed)throw new Error("AudioSample is closed.");if(this._data instanceof xo){const e=new Co(this._data);return e.setTimestamp(this.timestamp),e}if(Fo(this._data)){const e=new Co(this._data.clone());return e.setTimestamp(this.timestamp),e}return new Co({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp,data:this._data})}trim(e,t=this.numberOfFrames){if(!Number.isInteger(e)||e<0)throw new TypeError("startFrame must be a non-negative integer.");if(!Number.isInteger(t)||t<0)throw new TypeError("endFrame must be a non-negative integer.");if(e>this.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t<e)throw new RangeError("endFrame must not be less than startFrame.");if(this._closed)throw new Error("AudioSample is closed.");const i=t-e,r=Bo(this.format);let n;if(Eo(this.format)){const t=i*r;if(n=new Uint8Array(t*this.numberOfChannels),i>0)for(let r=0;r<this.numberOfChannels;r++)this.copyTo(n.subarray(r*t,(r+1)*t),{planeIndex:r,format:this.format,frameOffset:e,frameCount:i})}else n=new Uint8Array(i*this.numberOfChannels*r),i>0&&this.copyTo(n,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new Co({data:n,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(null==no||no.unregister(this),this._data instanceof xo?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Fo(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof xo?this._createAudioDataFromData():Fo(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(Eo(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(new Uint8Array(t,i*e,e),{planeIndex:i,format:this.format});return new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:t})}{const e=new ArrayBuffer(this.allocationSize({planeIndex:0,format:this.format}));return this.copyTo(e,{planeIndex:0,format:this.format}),new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:e})}}toAudioBuffer(){if(this._closed)throw new Error("AudioSample is closed.");const e=new AudioBuffer({numberOfChannels:this.numberOfChannels,length:this.numberOfFrames,sampleRate:this.sampleRate}),t=new Float32Array(this.allocationSize({planeIndex:0,format:"f32-planar"})/4);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(t,{planeIndex:i,format:"f32-planar"}),e.copyToChannel(t,i);return e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}[Symbol.dispose](){this.close()}static*_fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,n=e.length,s=Math.floor(24e4/i);let a=0,o=n;for(;o>0;){const n=Math.min(s,o),l=new Float32Array(i*n);for(let t=0;t<i;t++)e.copyFromChannel(l.subarray(t*n,(t+1)*n),t,a);yield new Co({format:"f32-planar",sampleRate:r,numberOfFrames:n,numberOfChannels:i,timestamp:t+a/r,data:l}),a+=n,o-=n}}static fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,n=e.length,s=Math.floor(24e4/i);let a=0,o=n;const l=[];for(;o>0;){const n=Math.min(s,o),c=new Float32Array(i*n);for(let t=0;t<i;t++)e.copyFromChannel(c.subarray(t*n,(t+1)*n),t,a);const u=new Co({format:"f32-planar",sampleRate:r,numberOfFrames:n,numberOfChannels:i,timestamp:t+a/r,data:c});l.push(u),a+=n,o-=n}return l}}const Bo=e=>{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},Eo=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},_o=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},Ro=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,qe(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,qe(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,qe(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},Fo=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,Ao=(e,t,i,r,n,s,a,o)=>{const l=_o(i),c=Ro(r),u=Bo(i),d=Bo(r),h=Eo(i);if(Eo(r))if(h){const r=new ArrayBuffer(o*u),n=me(r);e.copyTo(r,{planeIndex:s,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,e*d,l(n,e*u))}}else{const r=new ArrayBuffer(o*n*u),h=me(r);e.copyTo(r,{planeIndex:0,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,e*d,l(h,(e*n+s)*u))}}else if(h){const r=new ArrayBuffer(o*u),s=me(r);for(let h=0;h<n;h++){e.copyTo(r,{planeIndex:h,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,(e*n+h)*d,l(s,e*u))}}}else{const r=new ArrayBuffer(o*n*u),s=me(r);e.copyTo(r,{planeIndex:0,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++)for(let i=0;i<n;i++){const r=e*n+i;c(t,r*d,l(s,r*u))}}},Mo=[],Do=[],No=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},Oo=e=>{if(!mt(e))throw new TypeError("timestamp must be a number.")},Lo=(e,t,i)=>i.verifyKeyPackets?t.then(t=>Y(null,null,function*(){if(!t||"delta"===t.type)return t;const i=yield e.determinePacketType(t);return i&&(t.type=i),t})):t;class zo{constructor(e){if(!(e instanceof el))throw new TypeError("track must be an InputTrack.");this._track=e}getFirstPacket(){return Y(this,arguments,function*(e={}){if(No(e),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getFirstPacket(e),e)})}getFirstKeyPacket(){return Y(this,arguments,function*(e={}){No(e);const t=yield this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null})}getPacket(e){return Y(this,arguments,function*(e,t={}){if(Oo(e),No(t),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getPacket(e,t),t)})}getNextPacket(e){return Y(this,arguments,function*(e,t={}){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(No(t),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getNextPacket(e,t),t)})}getKeyPacket(e){return Y(this,arguments,function*(e,t={}){if(Oo(e),No(t),this._track.input._disposed)throw new gl;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=yield this._track._backing.getKeyPacket(e,t);if(!i)return i;oe("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getKeyPacket(i.timestamp-1/(yield this._track.getTimeResolution()),t):i})}getNextKeyPacket(e){return Y(this,arguments,function*(e,t={}){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(No(t),this._track.input._disposed)throw new gl;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=yield this._track._backing.getNextKeyPacket(e,t);if(!i)return i;oe("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getNextKeyPacket(i,t):i})}packets(e,t,i={}){if(void 0!==e&&!(e instanceof Tr))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!(null==i?void 0:i.metadataOnly))throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof Tr))throw new TypeError("endPacket must be an EncodedPacket.");if(No(i),this._track.input._disposed)throw new gl;const r=[];let{promise:n,resolve:s}=Ae(),{promise:a,resolve:o}=Ae(),l=!1,c=!1,u=null,d=!1;const h=[],f=()=>Math.max(2,h.length);(()=>Y(this,null,function*(){let u=null!=e?e:yield this.getFirstPacket(i);for(;u&&!c&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=(null==t?void 0:t.sequenceNumber));)r.length>f()?(({promise:a,resolve:o}=Ae()),yield a):(r.push(u),s(),({promise:n,resolve:s}=Ae()),u=yield this.getNextPacket(u,i));l=!0,s()}))().catch(e=>{d||(u=e,d=!0,s())});const m=this._track;return{next(){return Y(this,null,function*(){for(;;){if(m.input._disposed)throw new gl;if(c)return{value:void 0,done:!0};if(d)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(h.push(t);h.length>0&&t-h[0]>=1e3;)h.shift();return o(),{value:e,done:!1}}if(l)return{value:void 0,done:!0};yield n}})},return(){return Y(this,null,function*(){return c=!0,o(),s(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}class Uo{constructor(e,t){this.onSample=e,this.onError=t}}class qo{mediaSamplesInRange(e=-1/0,t=1/0,i){Oo(e),Oo(t);const r=[];let n=!1,s=null,{promise:a,resolve:o}=Ae(),{promise:l,resolve:c}=Ae(),u=!1,d=!1,h=!1,f=null,m=null,p=!1;const g=V(H({},i),{verifyKeyPackets:!0,metadataOnly:!1});(()=>Y(this,null,function*(){var i;f=yield this._createDecoder(i=>{c(),i.timestamp>=t&&(d=!0),d?i.close():(s&&(i.timestamp>e?(r.push(s),n=!0):s.close()),i.timestamp>=e&&(r.push(i),n=!0),s=n?null:i,r.length>0&&(o(),({promise:a,resolve:o}=Ae())))},e=>{p||(m=e,p=!0,o())});const k=this._createPacketSink(),y=null!=(i=yield k.getKeyPacket(e,g))?i:yield k.getFirstKeyPacket(g);let b=y;const T=k.packets(null!=y?y:void 0,void 0,g);for(yield T.next();b&&!d&&!this._track.input._disposed;){const e=Wo(r.length);if(r.length+f.getDecodeQueueSize()>e){({promise:l,resolve:c}=Ae()),yield l;continue}f.decode(b);const t=yield T.next();if(t.done)break;b=t.value}yield T.return(),h||this._track.input._disposed||(yield f.flush()),!n&&s&&r.push(s),u=!0,o()}))().catch(e=>{p||(m=e,p=!0,o())}).finally(()=>{null==f||f.close()});const k=this._track,y=()=>{null==s||s.close();for(const e of r)e.close()};return{next(){return Y(this,null,function*(){for(;;){if(k.input._disposed)throw h=!0,d=!0,y(),new gl;if(h)return{value:void 0,done:!0};if(p)throw h=!0,d=!0,y(),m;if(r.length>0){const e=r.shift();return c(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};yield a}})},return(){return Y(this,null,function*(){return h=!0,d=!0,c(),o(),y(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=function(e){return Z(this,null,function*(){Symbol.iterator in e?yield*ee(e[Symbol.iterator]()):yield*ee(e[Symbol.asyncIterator]())})}(e),r=[],n=[];let{promise:s,resolve:a}=Ae(),{promise:o,resolve:l}=Ae(),c=!1,u=!1,d=null,h=null,f=!1;const m=e=>{n.push(e),a(),({promise:s,resolve:a}=Ae())},p=V(H({},t),{verifyKeyPackets:!0,metadataOnly:!1});(()=>Y(this,null,function*(){d=yield this._createDecoder(e=>{if(l(),u)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i<t;i++)m(i<t-1?e.clone():e);else e.close()},e=>{f||(h=e,f=!0,a())});const e=this._createPacketSink();let t=null,s=null,g=-1;const k=()=>Y(this,null,function*(){oe(s),oe(d);let t=s;for(d.decode(t);t.sequenceNumber<g;){const i=Wo(n.length);for(;n.length+d.getDecodeQueueSize()>i&&!u;)({promise:o,resolve:l}=Ae()),yield o;if(u)break;const r=yield e.getNextPacket(t,p);oe(r),d.decode(r),t=r}g=-1}),y=()=>Y(this,null,function*(){oe(d),yield d.flush();for(let e=0;e<r.length;e++)m(null);r.length=0});try{for(var b,T,v,w=te(i);b=!(T=yield w.next()).done;b=!1){const i=T.value;if(Oo(i),u||this._track.input._disposed)break;const n=yield e.getPacket(i,p),a=n&&(yield e.getKeyPacket(i,p));a?(t&&(a.sequenceNumber!==s.sequenceNumber||n.timestamp<t.timestamp)&&(yield k(),yield y()),r.push(n.timestamp),g=Math.max(n.sequenceNumber,g),t=n,s=a):(-1!==g&&(yield k(),yield y()),m(null),t=null)}}catch(T){v=[T]}finally{try{b&&(T=w.return)&&(yield T.call(w))}finally{if(v)throw v[0]}}u||this._track.input._disposed||(-1!==g&&(yield k()),yield y()),c=!0,a()}))().catch(e=>{f||(h=e,f=!0,a())}).finally(()=>{null==d||d.close()});const g=this._track,k=()=>{for(const e of n)null==e||e.close()};return{next(){return Y(this,null,function*(){for(;;){if(g.input._disposed)throw u=!0,k(),new gl;if(u)return{value:void 0,done:!0};if(f)throw u=!0,k(),h;if(n.length>0){const e=n.shift();return oe(void 0!==e),l(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};yield s}})},return(){return Y(this,null,function*(){return u=!0,l(),a(),k(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}const Wo=e=>0===e?40:8;class Ho extends Uo{constructor(e,t,i,r,n,s){var a,o,l,c,u,d,h,f;super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=n,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new et,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const m=Mo.find(e=>e.supports(i,r));if(m)this.customDecoder=new m,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof lo))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();oe(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(at()){if("avc"===i&&this.decoderConfig.description){const e=Qt(fe(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=Jt(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig=V(H({},this.decoderConfig),{hardwareAcceleration:"prefer-software"})),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=ei(t),this.decoderConfig=V(H({},this.decoderConfig),{description:Gt(e)})))}}Se(this.decoderConfig.colorSpace)||(this.decoderConfig=V(H({},this.decoderConfig),{colorSpace:{primaries:null!=(o=null==(a=this.decoderConfig.colorSpace)?void 0:a.primaries)?o:"bt709",matrix:null!=(c=null==(l=this.decoderConfig.colorSpace)?void 0:l.matrix)?c:"bt709",transfer:null!=(d=null==(u=this.decoderConfig.colorSpace)?void 0:u.transfer)?d:"bt709",fullRange:null!=(f=null==(h=this.decoderConfig.colorSpace)?void 0:h.fullRange)&&f}}))}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){var e,t;return this.customDecoder?this.customDecoderQueueSize:(oe(this.decoder),Math.max(this.decoder.decodeQueueSize,null!=(t=null==(e=this.alphaDecoder)?void 0:e.decodeQueueSize)?t:0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(oe(this.decoder),it()||Fe(this.inputTimestamps,e.timestamp,e=>e),at()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const n of Wt(e.data,this.decoderConfig)){const r=Ht(e.data[n.offset]);if(i||(i=r>=1&&r<=5),r===Nt.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(n.offset,n.offset+n.length))}if(!this.decoderConfig.description)for(let e=0;e<t.length;e++){const i=t[e];if(Ht(i[0])!==Nt.SPS)continue;const r=Jt(i);r&&0!==r.maxDecFrameBuffering&&1!==r.bitstreamRestrictionFlag&&(t[e]=ei(r));break}const r=((e,t)=>{if(t.description){const i=3&fe(t.description)[4];return Xt(e,i+1)}return Kt(e)})(t,this.decoderConfig);e=new Tr(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=mi(e.data,this.decoderConfig);t&&(e=new Tr(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new jo),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();oe(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();oe(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=wi(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(null!=t?t:e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of ti(e,this.decoderConfig)){const i=ii(e[t.offset]);if(i===Lt.RASL_N||i===Lt.RASL_R)return!0}return!1}sampleHandler(e){if(it()){if(this.sampleQueue.length>0&&e.timestamp>=ce(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}Fe(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();oe(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}mergeAlpha(e,t){return Y(this,null,function*(){const i=Ae();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){oe(this.merger);const i=yield this.merger.merge(e,t);r.sample=new lo(i)}else r.sample=new lo(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(n){Me(this.finalSamples,r),this.onError(n)}finally{Me(this.mergeAlphaPromises,i.promise),i.resolve()}})}flush(){return Y(this,null,function*(){var e;if(this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(oe(this.decoder),yield Promise.all([this.decoder.flush(),null==(e=this.alphaDecoder)?void 0:e.flush()]),yield Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),it()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1})}close(){var e;this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(oe(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,null==(e=this.merger)||e.close());for(const t of this.sampleQueue)t.close();this.sampleQueue.length=0}}let Vo=null;class jo{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!Vo){const e=new Blob([`(${Ko.toString()})()`],{type:"application/javascript"});Vo=URL.createObjectURL(e)}const e=qe(navigator.hardwareConcurrency,1,4);for(let t=0;t<e;t++){const e=new Worker(Vo);e.addEventListener("message",e=>{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=Ae();this.pendingRequests.set(i,r);const n=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,n.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const Ko=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:n,alpha:s}=e.data;i=i.then(()=>Y(null,null,function*(){try{const e=yield r(n,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{n.close(),s.close()}}))});const r=(e,t)=>Y(null,null,function*(){const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),l=i.includes("P12"),c=r.includes("P10"),u=r.includes("P12");if(c!==o||u!==l)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return yield n(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return yield s(e,t,i);if("NV12"===i)return yield a(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)}),n=(e,t,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=new Uint8Array(4*d);yield e.copyTo(h);const f=yield o(t,c,u,1);for(let e=0,t=3;e<d;e++,t+=4)h[t]=f[e];const m={format:"RGBX"===i||"RGBA"===i?"RGBA":"BGRA",codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[h.buffer]};return new VideoFrame(h,m)}),s=(e,t,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=i.includes("P10"),h=i.includes("P12"),f=d||h?2:1;let m,p;i.startsWith("I420")?(m=Math.ceil(c/2),p=Math.ceil(u/2)):i.startsWith("I422")?(m=Math.ceil(c/2),p=u):(m=c,p=u);const g=c*u,k=g*f,y=m*p*f,b=new Uint8Array(k+2*y+g*f);yield e.copyTo(b);const T=yield o(t,c,u,f),v=k+2*y;b.set(T,v);const w={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[b.buffer]};return new VideoFrame(b,w)}),a=(e,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=Math.ceil(c/2)*Math.ceil(u/2),f=e.allocationSize();t&&t.byteLength===f||(t=new Uint8Array(f)),yield e.copyTo(t);const m=new Uint8Array(d+2*h+d);m.set(t.subarray(0,d),0);const p=d,g=d+h,k=d;for(let e=0;e<h;e++)m[p+e]=t[k+2*e],m[g+e]=t[k+2*e+1];const y=yield o(i,c,u,1);m.set(y,d+2*h);const b={format:"I420A",codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[m.buffer]};return new VideoFrame(m,b)}),o=(t,i,r,n)=>Y(null,null,function*(){const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),yield t.copyTo(e);const a=t.format;if("RGBA"===a||"BGRA"===a||"RGBX"===a||"BGRX"===a){const t="RGBA"===a||"RGBX"===a?0:2,n=i*r;for(let i=0;i<n;i++)e[i]=e[4*i+t];return e.subarray(0,n)}return e.subarray(0,i*r*n)})},Xo=e=>{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class $o extends qo{constructor(e,t={}){if(!(e instanceof rl))throw new TypeError("videoTrack must be an InputVideoTrack.");Xo(t),super(),this._track=e,this._decoderOptions=t}_createDecoder(e,t){return Y(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(ot("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getRotation();let n=yield this._track.getDecoderConfig();const s=yield this._track.getTimeResolution();return oe(i&&n),n=V(H({},n),{hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency}),new Ho(e,t,i,n,r,s)})}_createPacketSink(){return new zo(this._track)}getSample(e){return Y(this,arguments,function*(e,t={}){Oo(e);try{for(var i,r,n,s=te(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Go{constructor(e,t={}){var i,r,n;if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof rl))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&ko(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&Xo(t.decoderOptions),this._videoTrack=e,this._alpha=null!=(i=t.alpha)&&i,this._options=t,this._fit=null!=(r=t.fit)?r:"fill",this._videoSampleSink=new $o(e,t.decoderOptions),this._canvasPool=Array.from({length:null!=(n=t.poolSize)?n:0},()=>null)}_ensureInit(){var e;return null!=(e=this._initPromise)?e:this._initPromise=(()=>Y(this,null,function*(){var e;const t=this._options,i=this._videoTrack,r=null!=(e=t.rotation)?e:yield i.getRotation(),n=yield i.getSquarePixelWidth(),s=yield i.getSquarePixelHeight(),[a,o]=r%180===0?[n,s]:[s,n];let l=t.crop;l&&(l=go(l,a,o));let[c,u]=l?[l.width,l.height]:[a,o];const d=c/u;void 0!==t.width&&void 0===t.height?(c=t.width,u=Math.round(c/d)):void 0===t.width&&void 0!==t.height?(u=t.height,c=Math.round(u*d)):void 0!==t.width&&void 0!==t.height&&(c=t.width,u=t.height),this._width=c,this._height=u,this._rotation=r,this._crop=l}))()}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],n=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),n=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||nt()});oe(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:n,fillBlack:!this._alpha&&nt()});const a={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),a}getCanvas(e,t){return Y(this,null,function*(){Oo(e),yield this._ensureInit();const i=yield this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)})}canvases(e,t,i){return Z(this,null,function*(){yield new J(this._ensureInit()),yield*ee(Ue(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e)))})}canvasesAtTimestamps(e,t){return Z(this,null,function*(){yield new J(this._ensureInit()),yield*ee(Ue(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e)))})}}class Qo extends Uo{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new et,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const n=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const n=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(n*s)/s),e(t)},s=Do.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof Co))throw new TypeError("The argument passed to onSample must be an AudioSample.");n(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{n(new Co(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(oe(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(oe(this.decoder),null!=this.expectedFirstTimestamp||(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}flush(){return Y(this,null,function*(){this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(oe(this.decoder),yield this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0})}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(oe(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class Yo extends Uo{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,oe(Xi.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:n,littleEndian:s}=ar(this.codec);switch(this.inputSampleSize=n,n){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-q(2,7):"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const n=(1<<i|(15&r)<<i-4|1<<i-5)-33;return 0===t?n:-n})(e.getUint8(t)):"alaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let n=0;return n=4!==i?1<<i|(15&r)<<i-4|1<<i-5:r<<1|1,0===t?n:-n})(e.getUint8(t)):oe(!1);break;case 2:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint16(t,s)-q(2,15):"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):oe(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>Le(e,t,s)-q(2,23):"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>Le(e,t,i)<<8>>8)(e,t,s):oe(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-q(2,31):"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):oe(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):oe(!1);break;default:Oe(n),oe(!1)}switch(n){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+q(2,7)));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:Oe(n),oe(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=me(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,n=new ArrayBuffer(r),s=new DataView(n);for(let c=0;c<i*this.decoderConfig.numberOfChannels;c++){const e=c*this.inputSampleSize,i=c*this.outputSampleSize,r=this.readInputValue(t,e);this.writeOutputValue(s,i,r)}const a=i/this.decoderConfig.sampleRate;(null===this.currentTimestamp||Math.abs(e.timestamp-this.currentTimestamp)>=a)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=a;const l=new Co({format:this.outputFormat,data:n,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(l)}flush(){return Y(this,null,function*(){})}close(){}}class Jo extends qo{constructor(e){if(!(e instanceof nl))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}_createDecoder(e,t){return Y(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(ot("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getDecoderConfig();return oe(i&&r),Xi.includes(r.codec)?new Yo(e,t,r):new Qo(e,t,i,r)})}_createPacketSink(){return new zo(this._track)}getSample(e){return Y(this,arguments,function*(e,t={}){Oo(e);try{for(var i,r,n,s=te(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Zo{constructor(e){if(!(e instanceof nl))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new Jo(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}getBuffer(e,t){return Y(this,null,function*(){Oo(e);const i=yield this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)})}buffers(e,t,i){return Ue(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return Ue(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class el{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof rl}isAudioTrack(){return this instanceof nl}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}getInternalCodecId(){return Y(this,null,function*(){return this._backing.getInternalCodecId()})}get internalCodecId(){return tl(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}getLanguageCode(){return Y(this,null,function*(){return this._backing.getLanguageCode()})}get languageCode(){return tl(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}getName(){return Y(this,null,function*(){return this._backing.getName()})}get name(){return tl(this._backing.getName(),"name","getName")}getTimeResolution(){return Y(this,null,function*(){return this._backing.getTimeResolution()})}get timeResolution(){return tl(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}isRelativeToUnixEpoch(){return Y(this,null,function*(){return this._backing.isRelativeToUnixEpoch()})}getUnixTimeForTimestamp(e){return Y(this,null,function*(){return this._backing.getUnixTimeForTimestamp(e)})}hasUnixTimeMapping(){return Y(this,null,function*(){return null!==(yield this._backing.getUnixTimeForTimestamp(yield this.getFirstTimestamp()))})}getDisposition(){return Y(this,null,function*(){return this._backing.getDisposition()})}get disposition(){return tl(this._backing.getDisposition(),"disposition","getDisposition")}getBitrate(){return Y(this,null,function*(){return this._backing.getBitrate()})}getAverageBitrate(){return Y(this,null,function*(){return this._backing.getAverageBitrate()})}getFirstTimestamp(){return Y(this,null,function*(){var e;const t=yield this._backing.getFirstPacket({metadataOnly:!0});return null!=(e=null==t?void 0:t.timestamp)?e:0})}computeDuration(e){return Y(this,null,function*(){var t,i;const r=yield this._backing.getPacket(1/0,H({metadataOnly:!0},e)),n=(null!=(t=null==r?void 0:r.timestamp)?t:0)+(null!=(i=null==r?void 0:r.duration)?i:0);return je(n,yield this.getTimeResolution())})}getDurationFromMetadata(){return Y(this,arguments,function*(e={}){return this._backing.getDurationFromMetadata(e)})}computePacketStats(e=1/0,t){return Y(this,null,function*(){const i=new zo(this);let r=1/0,n=-1/0,s=0,a=0;try{for(var o,l,c,u=te(i.packets(void 0,void 0,H({metadataOnly:!0},t)));o=!(l=yield u.next()).done;o=!1){const t=l.value;if(s>=e&&t.timestamp>=n)break;r=Math.min(r,t.timestamp),n=Math.max(n,t.timestamp+t.duration),s++,a+=t.byteLength}}catch(l){c=[l]}finally{try{o&&(l=u.return)&&(yield l.call(u))}finally{if(c)throw c[0]}}return{packetCount:s,averagePacketRate:s?Number((s/(n-r)).toPrecision(16)):0,averageBitrate:s?Number((8*a/(n-r)).toPrecision(16)):0}})}isLive(){return Y(this,null,function*(){return null!==(yield this._backing.getLiveRefreshInterval())})}getLiveRefreshInterval(){return Y(this,null,function*(){return this._backing.getLiveRefreshInterval()})}canBePairedWith(e){if(!(e instanceof el))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&(this._backing.getPairingMask()&e._backing.getPairingMask())!==BigInt("0")}getPairableTracks(e){return Y(this,null,function*(){return this.input.getTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPairableVideoTracks(e){return Y(this,null,function*(){return this.input.getVideoTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPairableAudioTracks(e){return Y(this,null,function*(){return this.input.getAudioTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableVideoTrack(e){return Y(this,null,function*(){return this.input.getPrimaryVideoTrack(ll({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableAudioTrack(e){return Y(this,null,function*(){return this.input.getPrimaryAudioTrack(ll({filter:e=>e.canBePairedWith(this)},e))})}hasPairableTrack(e){return Y(this,null,function*(){e&&(e=il(e));const t=yield this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||(yield e(i))))return!0;return!1})}hasPairableVideoTrack(e){return e&&(e=il(e)),this.hasPairableTrack(t=>Y(this,null,function*(){return t.isVideoTrack()&&(!e||(yield e(t)))}))}hasPairableAudioTrack(e){return e&&(e=il(e)),this.hasPairableTrack(t=>Y(this,null,function*(){return t.isAudioTrack()&&(!e||(yield e(t)))}))}}const tl=(e,t,i)=>{if(ct(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},il=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return ct(r)?r.then(i):i(r)}:void 0};class rl extends el{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}getCodec(){return Y(this,null,function*(){return this._backing.getCodec()})}get codec(){return tl(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return Y(this,null,function*(){var e,t,i;return null!=(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:"prores"===(yield this._backing.getCodec())})}getCodedWidth(){return Y(this,null,function*(){return this._backing.getCodedWidth()})}get codedWidth(){return tl(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}getCodedHeight(){return Y(this,null,function*(){return this._backing.getCodedHeight()})}get codedHeight(){return tl(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}getRotation(){return Y(this,null,function*(){return this._backing.getRotation()})}get rotation(){return tl(this._backing.getRotation(),"rotation","getRotation")}getSquarePixelWidth(){return Y(this,null,function*(){return this._backing.getSquarePixelWidth()})}get squarePixelWidth(){return tl(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}getSquarePixelHeight(){return Y(this,null,function*(){return this._backing.getSquarePixelHeight()})}get squarePixelHeight(){return tl(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}getPixelAspectRatio(){return Y(this,null,function*(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=yt({num:(yield this.getSquarePixelWidth())*(yield this.getCodedHeight()),den:(yield this.getSquarePixelHeight())*(yield this.getCodedWidth())})})}get pixelAspectRatio(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=yt({num:tl(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*tl(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:tl(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*tl(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")})}getDisplayWidth(){return Y(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()})}get displayWidth(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(void 0!==i){const e=tl(i,"displayWidth","getDisplayWidth");if(null!==e)return e}const r=tl(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return tl(r,"displayWidth","getDisplayWidth")}getDisplayHeight(){return Y(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()})}get displayHeight(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(void 0!==i){const e=tl(i,"displayHeight","getDisplayHeight");if(null!==e)return e}const r=tl(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return tl(r,"displayHeight","getDisplayHeight")}getColorSpace(){return Y(this,null,function*(){return this._backing.getColorSpace()})}hasHighDynamicRange(){return Y(this,null,function*(){const e=yield this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix})}canBeTransparent(){return Y(this,null,function*(){return this._backing.canBeTransparent()})}getDecoderConfig(){return Y(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return Y(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return Y(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(oe(null!==t),Mo.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(yield VideoDecoder.isConfigSupported(e)).supported}catch(e){return Pt._error("Error during decodability check:",e),!1}})}determinePacketType(e){return Y(this,null,function*(){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=yield this.getCodec();if(null===t)return null;const i=yield this.getDecoderConfig();return oe(i),wi(t,i,e.data)})}computeFrameRateMetrics(){return Y(this,arguments,function*(e={}){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!mt(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const r=yield this.getTimeResolution(),n=null!=(t=e.targetPacketCount)?t:256,s=new zo(this),a=[];let o=-1/0,l=0;try{for(var c,u,d,h=te(s.packets(void 0,void 0,{metadataOnly:!0}));c=!(u=yield h.next()).done;c=!1){const e=u.value;if(a.length>=n&&e.timestamp>=o)break;a.push(e.timestamp),o=Math.max(o,e.timestamp),l++}}catch(u){d=[u]}finally{try{c&&(u=h.return)&&(yield u.call(h))}finally{if(d)throw d[0]}}const f=new Float64Array(a.length);for(let R=0;R<a.length;R++)f[R]=Math.round(a[R]*r);f.sort();let m=1;for(let R=1;R<f.length;R++)f[R]!==f[m-1]&&(f[m++]=f[R]);if(m<2)return{underlyingFrameRate:null,bestGuessFrameRate:r,minFrameRate:r,maxFrameRate:r,averageFrameRate:r,medianFrameRate:r,frameRateIsConstant:!0,probedPacketCount:l};const p=f.subarray(0,m),g=ul(p,r),k=null!=g?g:r,y=null!==g?r/g:null,b=new Map;let T=1/0,v=-1/0,w=0;for(let R=1;R<m;R++){const e=p[R]-p[R-1],t=null!==y?Math.max(1,Math.round(e/y)):e;b.set(t,(null!=(i=b.get(t))?i:0)+1),T=Math.min(T,t),v=Math.max(v,t),w+=t}const S=m-1,P=[...b.keys()].sort((e,t)=>e-t),I=S-1>>1,x=S>>1;let C=0,B=0,E=0;for(const R of P)if(E+=b.get(R),0===C&&E>I&&(C=R),E>x){B=R;break}const _=(k/C+k/B)/2;return{underlyingFrameRate:g,bestGuessFrameRate:null!==g?g:hl(_),minFrameRate:k/v,maxFrameRate:k/T,averageFrameRate:k*S/w,medianFrameRate:_,frameRateIsConstant:null!==g&&1===T&&1===v,probedPacketCount:l}})}}class nl extends el{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}getCodec(){return Y(this,null,function*(){return this._backing.getCodec()})}get codec(){return tl(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return Y(this,null,function*(){var e,t,i;return null==(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))||i})}getNumberOfChannels(){return Y(this,null,function*(){return this._backing.getNumberOfChannels()})}get numberOfChannels(){return tl(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}getSampleRate(){return Y(this,null,function*(){return this._backing.getSampleRate()})}get sampleRate(){return tl(this._backing.getSampleRate(),"sampleRate","getSampleRate")}getDecoderConfig(){return Y(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return Y(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return Y(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(oe(null!==t),Do.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(yield AudioDecoder.isConfigSupported(e)).supported}catch(e){return Pt._error("Error during decodability check:",e),!1}})}determinePacketType(e){return Y(this,null,function*(){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");return null===(yield this.getCodec())?null:"key"})}}const sl=e=>-(null!=e?e:-1/0),al=e=>-e,ol=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when provided, must be a function.");if(void 0!==e.sortBy&&"function"!==typeof e.sortBy)throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:e.filter?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("query.filter must return or resolve to a boolean.");return e},r=e.filter(t);return ct(r)?r.then(i):i(r)}:void 0,sortBy:e.sortBy?t=>{const i=e=>{if("number"!==typeof e&&(!Array.isArray(e)||!e.every(e=>"number"===typeof e)))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return e},r=e.sortBy(t);return ct(r)?r.then(i):i(r)}:void 0}},ll=(e,t)=>({filter:(null==e?void 0:e.filter)||(null==t?void 0:t.filter)?i=>{var r,n;const s=null==(n=null==(r=null==e?void 0:e.filter)?void 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t?(i=xl(e,!0),r=xl(e,!0)):(r=xl(e,!1),i=xl(e,!1)),4294967296*r+i},Rl=e=>4294967296*Cl(e)+Cl(e),Fl=e=>4294967296*El(e)+Cl(e),Al=e=>{const t=Bl(e),i=(e=>{bl(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},Ml=e=>{bl(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Dl=e=>{bl(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},Nl=(e,t)=>{bl(e,t);let i="";for(let r=0;r<t;r++)i+=String.fromCharCode(e.bytes[e.bufferPos++]);return i},Ol=(e,t,i)=>pe.decode(Tl(e,t)).split("\n").map(e=>e.trim()).filter(e=>{var t;return e.length>0&&!(null==(t=null==i?void 0:i.ignore)?void 0:t.call(i,e))});var Ll,zl,Ul,ql;(zl=Ll||(Ll={}))[zl.Unsynchronisation=128]="Unsynchronisation",zl[zl.ExtendedHeader=64]="ExtendedHeader",zl[zl.ExperimentalIndicator=32]="ExperimentalIndicator",zl[zl.Footer=16]="Footer",(ql=Ul||(Ul={}))[ql.ISO_8859_1=0]="ISO_8859_1",ql[ql.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",ql[ql.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",ql[ql.UTF_8=3]="UTF_8";const Wl=128,Hl=10,Vl=["Blues","Classic rock","Country","Dance","Disco","Funk","Grunge","Hip-hop","Jazz","Metal","New age","Oldies","Other","Pop","Rhythm and blues","Rap","Reggae","Rock","Techno","Industrial","Alternative","Ska","Death metal","Pranks","Soundtrack","Euro-techno","Ambient","Trip-hop","Vocal","Jazz & funk","Fusion","Trance","Classical","Instrumental","Acid","House","Game","Sound clip","Gospel","Noise","Alternative rock","Bass","Soul","Punk","Space","Meditative","Instrumental pop","Instrumental rock","Ethnic","Gothic","Darkwave","Techno-industrial","Electronic","Pop-folk","Eurodance","Dream","Southern 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u;if(0===c[28]&&0!==c[29]){const i=c[29];i>0&&(null!=t.trackNumber||(t.trackNumber=i)),e.skip(-30),u=Kl(e,28),e.skip(2)}else e.skip(-30),u=Kl(e,30);u&&(null!=t.comment||(t.comment=u));const d=vl(e);d<Vl.length&&(null!=t.genre||(t.genre=Vl[d]))},Kl=(e,t)=>{const i=Tl(e,t),r=ut(i.indexOf(0),i.length),n=i.subarray(0,r);let s="";for(let a=0;a<n.length;a++)s+=String.fromCharCode(n[a]);return s.trimEnd()},Xl=e=>{const t=e.filePos,i=Nl(e,3),r=vl(e),n=vl(e),s=vl(e),a=Cl(e);if("ID3"!==i||255===r||255===n||0!==(2155905152&a))return e.filePos=t,null;let o=mr(a);return s&Ll.Footer&&(o+=Hl),{majorVersion:r,revision:n,flags:s,size:o}},$l=(e,t,i)=>{var r,n,s,a,o,l;if(![2,3,4].includes(t.majorVersion))return void Pt._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Ll.Footer?t.size-Hl:t.size,u=Tl(e,c),d=new Gl(t,u);if(t.flags&Ll.Unsynchronisation&&3===t.majorVersion&&d.ununsynchronizeAll(),t.flags&Ll.ExtendedHeader){const e=d.readU32();3===t.majorVersion?d.pos+=e:d.pos+=e-4}for(;d.pos<=d.bytes.length-d.frameHeaderSize();){const e=d.readId3V2Frame();if(!e)break;const c=d.pos,u=d.pos+e.size;let h=!1,f=!1,m=!1;if(3===t.majorVersion?(h=!!(64&e.flags),f=!!(128&e.flags)):4===t.majorVersion&&(h=!!(4&e.flags),f=!!(8&e.flags),m=!!(2&e.flags)||!!(t.flags&Ll.Unsynchronisation)),h)Pt._warn(`Skipping encrypted ID3v2 frame ${e.id}`),d.pos=u;else if(f)Pt._warn(`Skipping compressed ID3v2 frame ${e.id}`),d.pos=u;else{if(m&&d.ununsynchronizeRegion(d.pos,u),null!=i.raw||(i.raw={}),"TXXX"===e.id){const e=null!=(n=(r=i.raw).TXXX)?n:r.TXXX={},t=d.readId3V2TextEncoding(),s=d.readId3V2Text(t,u),a=d.readId3V2Text(t,u);null!=e[s]||(e[s]=a)}else"T"===e.id[0]?null!=(s=i.raw)[a=e.id]||(s[a]=d.readId3V2EncodingAndText(u)):null!=(o=i.raw)[l=e.id]||(o[l]=d.readBytes(e.size));switch(d.pos=c,e.id){case"TIT2":case"TT2":null!=i.title||(i.title=d.readId3V2EncodingAndText(u));break;case"TIT3":case"TT3":null!=i.description||(i.description=d.readId3V2EncodingAndText(u));break;case"TPE1":case"TP1":null!=i.artist||(i.artist=d.readId3V2EncodingAndText(u));break;case"TALB":case"TAL":null!=i.album||(i.album=d.readId3V2EncodingAndText(u));break;case"TPE2":case"TP2":null!=i.albumArtist||(i.albumArtist=d.readId3V2EncodingAndText(u));break;case"TRCK":case"TRK":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.trackNumber||(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.tracksTotal||(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.discNumber||(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.discsTotal||(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=d.readId3V2EncodingAndText(u);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==Vl[e]){null!=i.genre||(i.genre=Vl[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==Vl[e]){null!=i.genre||(i.genre=Vl[e]);break}}null!=i.genre||(i.genre=e)}break;case"TDRC":case"TDAT":{const e=d.readId3V2EncodingAndText(u),t=new Date(e);Number.isNaN(t.getTime())||null!=i.date||(i.date=t)}break;case"TYER":case"TYE":{const e=d.readId3V2EncodingAndText(u),t=Number.parseInt(e,10);Number.isInteger(t)&&(null!=i.date||(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.lyrics||(i.lyrics=d.readId3V2Text(e,u))}break;case"COMM":case"COM":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.comment||(i.comment=d.readId3V2Text(e,u))}break;case"APIC":case"PIC":{const e=d.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=d.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=d.readId3V2Text(e,u);const n=d.readU8(),s=d.readId3V2Text(e,u).trimEnd(),a=u-d.pos;if(a>=0){const e=d.readBytes(a);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===n?"coverFront":4===n?"coverBack":"unknown",description:s})}}break;default:d.pos+=e.size}d.pos=u}}};class Gl{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 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this.pos=i+Math.min(e+1,r.length),pe.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class Ql{constructor(e){this.host=e,this.closed=!1,this.resumes=new WeakMap}ensure(e){if(this.closed)return null;if(this.host.audioContext)return this.host.audioContext;const t=window.AudioContext||window.webkitAudioContext;let i;try{i=new t({sampleRate:e})}catch(n){i=new t}if(this.closed)return i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null;let r=null;try{r=i.createGain(),r.connect(i.destination);const e=this.host.muted?0:this.host.volume;return r.gain.value=e*e,this.closed?(r.disconnect(),i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null):(this.host.audioContext=i,this.host.gainNode=r,i)}catch(s){try{null==r||r.disconnect()}catch(a){console.warn("MediaBunny gain setup cleanup:",a)}throw i.close().catch(e=>console.warn("MediaBunny context 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n=function(e,t,i,r){const n=e.audioContextStartTime+(t-e.playbackTimeAtStart)/e.playbackRate,s=(n+i/e.playbackRate-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;return{startAt:Math.max(n,r),offset:n<r?(r-n)*e.playbackRate:null,endMediaTime:s}}(this.host,t,e.duration,i.currentTime);if(null!==n.offset&&n.offset>=e.duration)return;const s=i.createBufferSource();this.host.queuedNodes.add(s);try{s.buffer=e,s.connect(r),s.playbackRate.value=this.host.playbackRate,s.onended=()=>{if(this.host.queuedNodes.has(s))try{this.release(s,!1)}catch(e){console.warn("MediaBunny ended node cleanup:",e)}},null===n.offset?s.start(n.startAt):s.start(n.startAt,n.offset),this.host.latestScheduledEndTime=Math.max(this.host.latestScheduledEndTime,n.endMediaTime)}catch(a){try{this.release(s,!0)}catch(o){console.warn("MediaBunny audio node cleanup:",o)}throw a}}}const Jl=Symbol("cancelled");class Zl{constructor(){this.cancelled=!1,this.waits=new Set,this.timers=new Map}wait(e){return new 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e}ensureAudioContext(e){K(this,r).ensure(e)}updateGain(){K(this,r).updateGain()}stopQueuedNodes(){K(this,n).stop()}stopIterator(){return Y(this,null,function*(){yield K(this,s).stopIterator()})}handleNoAudioTrack(){K(this,t)||(this.audioSink=null,this.ensureAudioContext())}cancelPending(){Q(this,i)._++;try{this.pause()}finally{$(this,l,null),this.input=null,this.audioSink=null}}load(e,r){return Y(this,null,function*(){if(K(this,t))return;this.cancelPending();const n=K(this,i);this.playbackTimeAtStart=0,this.audioContextStartTime=0,this.latestScheduledEndTime=0;const s=Promise.resolve().then(()=>G(this,u,d).call(this,e,n,r));$(this,l,s);try{yield s}finally{K(this,l)===s&&$(this,l,null)}})}runIterator(e){return Y(this,null,function*(){K(this,t)||(yield K(this,s).run(e))})}play(){return Y(this,null,function*(){if(K(this,t))return;if(K(this,o))return K(this,o);if(!this.paused)return;const e=new Zl;$(this,a,e);const r=K(this,i),n=G(this,u,f).call(this,e,r);$(this,o,n);try{yield n}finally{K(this,a)===e&&($(this,a,null),$(this,o,null))}})}pause(){var e;this.paused||(this.playbackTimeAtStart=this.currentTime),this.paused=!0,this.asyncId++,null==(e=K(this,a))||e.cancel(),$(this,a,null),$(this,o,null),K(this,s).cancel(),this.stopQueuedNodes()}seek(e){return Y(this,null,function*(){var i,r;if(K(this,t))return;const n=!this.paused;K(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=null!=(r=null==(i=this.audioContext)?void 0:i.currentTime)?r:0,this.latestScheduledEndTime=this.playbackTimeAtStart;const a=++this.asyncId;n&&G(this,u,h).call(this,a)})}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){var i,r;if(K(this,t)||e===this.playbackRate)return;const n=this.currentTime;K(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=n,this.audioContextStartTime=null!=(r=null==(i=this.audioContext)?void 0:i.currentTime)?r:0,this.playbackRate=e,this.latestScheduledEndTime=n;const a=++this.asyncId;this.paused||G(this,u,h).call(this,a)}destroy(){if(K(this,t))return;$(this,t,!0),Q(this,i)._++;const e=[];for(const t of[()=>this.pause(),()=>K(this,r).destroy()])try{t()}catch(n){e.push(n)}if(this.input=null,this.audioSink=null,$(this,l,null),e.length)throw e[0]}}t=new WeakMap,i=new WeakMap,r=new WeakMap,n=new WeakMap,s=new WeakMap,a=new WeakMap,o=new WeakMap,l=new WeakMap,c=new WeakMap,u=new WeakSet,d=function(e,r,n){return Y(this,arguments,function*({input:e,audioTrack:r,duration:n},s,a){const o=()=>!K(this,t)&&K(this,i)===s;if(o()){this.input=e,this.duration=n;try{const e=r&&null!==r.codec&&(yield r.canDecode());if(!o())return;if(e){if(this.ensureAudioContext(r.sampleRate),!o())return;this.audioSink=new Zo(r)}else this.handleNoAudioTrack();o()&&(null==a||a())}catch(l){if(o())throw l}}})},h=function(e){this.runIterator(e).catch(i=>{if(!K(this,t)&&e===this.asyncId){try{this.pause()}catch(r){console.warn("MediaBunny audio failure 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e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==a||s||(a=yield e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:null!=a?a:Number.NaN})}function fc(){let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}}class mc{constructor(e){this.host=e,this.wanted=!1,this.playing=null,this.seeking=null}operation(){return V(H({},fc()),{source:this.host.loadSeq,complete:fc()})}current(e,t){return!this.host.destroyed&&e.source===this.host.loadSeq&&this[t]===e}cancelPlay(){const e=this.playing;this.playing=null,null==e||e.resolve()}invalidate(){this.cancelPlay(),this.wanted=!1;const e=this.seeking;this.seeking=null,null==e||e.complete.resolve(),null==e||e.resolve(),this.host.seeking=!1}ended(){this.wanted=!1,this.cancelPlay()}stop(){this.host.paused||(this.host.paused=!0,this.stopEngines(),this.host.events.emit("pause"))}stopEngines(){const e=[];for(const i of[()=>this.host.audio.pause(),()=>this.host.video.stop()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}pause(){this.wanted=!1,this.cancelPlay(),this.stop()}play(){if(this.host.destroyed)return Promise.resolve();if(this.wanted=!0,this.playing)return this.playing.promise;if(this.host.ended)return this.seek(0,!0);if(!this.host.paused&&!this.seeking)return Promise.resolve();const e=this.operation();return this.playing=e,this.runPlay(e).then(e.resolve,e.reject),e.promise}runPlay(e){return Y(this,null,function*(){const t=()=>this.current(e,"playing")&&this.wanted;try{for(;this.seeking;)if(yield this.seeking.complete.promise,!t())return;if(!t())return;if(this.host.paused=!1,yield this.host.audio.play(),!t())return void(this.wanted&&!this.host.destroyed||this.host.audio.pause());this.host.video.start(this.host.audio),ec(this.host.events,t,["play","playing"])}catch(i){if(!t())return;this.wanted=!1,this.host.paused=!0;try{this.stopEngines()}catch(r){console.warn("MediaBunny play cleanup error:",r)}throw i}finally{this.playing===e&&(this.playing=null)}})}seek(e,t){return this.position(t=>Y(this,null,function*(){const i=this.host.audio.seek(e),r=t()?this.host.video.seek(e):Promise.resolve();yield Promise.all([i,r])}),["seeked"],!1,t)}replace(e,t){return this.position(i=>Y(this,null,function*(){e.duration=yield hc(e),i()&&(this.host.media=e,yield Promise.all([this.host.video.load(e),this.host.audio.load(e)]),i()&&(yield Promise.all([this.host.video.seek(t),this.host.audio.seek(t)]),i()&&(this.host.readyState=4,this.host.networkState=1)))}),["loadedmetadata","durationchange","progress","loadeddata","canplay","canplaythrough","seeked"],!0)}position(e,t,i,r){if(this.host.destroyed)return Promise.resolve();this.wanted=null!=r?r:this.seeking?this.wanted:!this.host.paused,this.cancelPlay();const n=this.seeking,s=this.operation();return this.seeking=s,null==n||n.complete.resolve(),null==n||n.resolve(),this.runPosition(s,e,t,i).then(s.resolve,s.reject),s.promise}runPosition(e,t,i,r){return Y(this,null,function*(){const n=()=>this.current(e,"seeking");let s=!1;try{if(r&&this.stop(),!n())return;if(this.host.ended=!1,this.host.seeking=!0,ec(this.host.events,n,["seeking","waiting"]),!n())return;if(r||this.stop(),!n())return;if(yield t(n),!n())return;if(this.host.seeking=!1,e.complete.resolve(),ec(this.host.events,n,i),!n())return;this.seeking=null,s=this.wanted}catch(a){if(!n())return;throw this.host.seeking=!1,this.wanted=!1,this.cancelPlay(),this.host.reportError(a),a}finally{e.complete.resolve(),this.seeking===e&&(this.seeking=null)}s&&(yield this.play())})}}const pc=new WeakMap,gc=new WeakMap;function kc(e){const t=gc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.next()).then(e=>{var t;return null!=(t=e.value)?t:null});gc.set(e,i);const r=()=>{gc.get(e)===i&&gc.delete(e)};return i.then(r,r),i}function yc(e,t,i,r,n){const s=i?Math.max(.06,r/Math.max(1,n)):0;return i&&e<t-s?"skip":e<=t+s?"draw":"queue"}class bc{constructor(){this.image=null}cancel(){this.image&&(this.image.onload=null,this.image.onerror=null,this.image=null)}draw(e,t,i,r){this.cancel();const n=new Image;this.image=n,n.onload=()=>{if(this.image===n&&t()){this.cancel();try{i(n)}catch(e){r(e)}}},n.onerror=()=>{this.image===n&&this.cancel()},n.src=e}}class Tc{constructor(e,t,i,r){this.host=e,this.ready=t,this.draw=i,this.failure=r,this.stopped=!1,this.closed=!1,this.scheduled=null,this.fetching=null}current(e){return!this.closed&&!this.stopped&&this.host.asyncId===e}update(e){return Y(this,null,function*(){var t;const i=this.host.videoIterator;if(!i||!this.ready()||!this.current(e)||this.host.isFetching)return;const r={};this.fetching=r,this.host.isFetching=!0;const n=()=>this.current(e)&&this.host.videoIterator===i;try{for(;n();){const e=yield kc(i);if(!n()||!e)return;const r=null==(t=this.host.audioClock)?void 0:t.currentTime;if(void 0===r)return;const s=yc(e.timestamp,r,this.host.dropLateFrames,this.host.avSyncTolerance,this.host.playbackRate);if("skip"!==s){if("draw"!==s)return void(this.host.nextFrame=e);this.draw(e)}}}catch(s){if(n())throw s}finally{this.fetching===r&&(this.fetching=null,this.host.isFetching=!1)}})}request(e){this.update(e).catch(t=>{this.current(e)&&(this.stop(),this.report(t))})}report(e){try{this.failure(e)}catch(t){console.warn("MediaBunny video error listener:",t)}}cancelFrame(){null!==this.scheduled&&(cancelAnimationFrame(this.scheduled),this.scheduled=null)}schedule(e){if(!this.current(e))return;this.cancelFrame();const t=requestAnimationFrame(()=>{if(this.scheduled===t&&this.current(e)){this.scheduled=null;try{this.render()}catch(i){this.stop(),this.report(i)}}});this.scheduled=t,this.host.rafId=t}render(){const e=this.host.asyncId,t=()=>this.current(e);if(!t()||!this.host.audioClock)return;const i=this.host.audioClock.currentTime,r=Date.now();if(r-this.host.lastTimeUpdate>=this.host.timeupdateInterval){if(this.host.events.emit("timeupdate"),!t())return;this.host.lastTimeUpdate=r}if(this.ready()){if(Number.isFinite(this.host.duration)&&i>=this.host.duration){this.stop(),this.host.stalled=!1;const e=this.host.asyncId;return void ec(this.host.events,()=>!this.closed&&this.host.asyncId===e,["ended","pause","canplay"])}if(this.host.nextFrame&&this.host.nextFrame.timestamp<=i){if(this.draw(this.host.nextFrame),this.host.nextFrame=null,this.request(e),this.host.stalled){if(ec(this.host.events,t,["canplay","playing"]),!t())return;this.host.stalled=!1}}else this.host.nextFrame||(this.request(e),Number.isFinite(this.host.duration)&&i<this.host.duration&&!this.host.stalled&&(this.host.stalled=!0,this.host.events.emit("waiting")));this.schedule(e)}else this.schedule(e)}start(e){this.closed||(this.stop(),this.stopped=!1,this.host.audioClock=e,this.host.stalled=!1,this.host.nextFrame||this.request(this.host.asyncId),this.schedule(this.host.asyncId))}stop(){this.stopped=!0,this.host.asyncId++,this.cancelFrame(),this.fetching=null,this.host.isFetching=!1}destroy(){this.closed||(this.stop(),this.closed=!0)}}class vc{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:n=.12,dropLateFrames:s=!1,poster:a="",preflightRange:o=!1,onError:l}){X(this,P),X(this,m,0),X(this,p,0),X(this,g,null),X(this,k,null),X(this,y,null),X(this,b,!1),X(this,T,!1),X(this,v,new bc),X(this,w),X(this,S),this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=n,this.dropLateFrames=s,this.poster=a,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1,$(this,S,l),$(this,w,new Tc(this,()=>!K(this,T),e=>G(this,P,E).call(this,e,!0),e=>G(this,P,C).call(this,e)))}preflight(e,t,i){return Y(this,null,function*(){return function(e,t,i,r,n=()=>!0){return Y(this,null,function*(){if((null==r?void 0:r.aborted)||!n())return!1;if(!t||"string"!==typeof e||cc(e))return!0;try{const t=yield fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if((null==r?void 0:r.aborted)||!n())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!((null==r?void 0:r.aborted)||!n())&&(console.warn("Preflight check failed:",s),!0)}})}(e,this.preflightRange,this.events,t,i)})}drawPoster(){if(K(this,b)||!this.poster||this.posterDrawn)return;const e=K(this,m);K(this,v).draw(this.poster,()=>G(this,P,I).call(this,e),e=>{this.clear(),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,G(this,P,x).call(this).drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e=>G(this,P,C).call(this,e))}stopIterator(){return Y(this,null,function*(){const e=this.videoIterator;this.videoIterator=null,this.nextFrame=null,yield function(e){if(!e)return Promise.resolve();const t=pc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.return()).then(()=>{});return pc.set(e,i),i}(e)})}clear(){G(this,P,x).call(this).clearRect(0,0,this.canvas.width,this.canvas.height)}cancelPending(){Q(this,m)._++,Q(this,p)._++,this.stop(),G(this,P,B).call(this),K(this,v).cancel(),$(this,T,!1),$(this,g,null),$(this,k,null),$(this,y,null),this.videoSink=null,this.input=null}load(e,t){return Y(this,null,function*(){if(K(this,b))return;this.cancelPending();const i=K(this,m),r=K(this,p);$(this,T,!0);const n=Promise.resolve().then(()=>G(this,P,_).call(this,e,i,r,t));$(this,g,n);try{yield n}finally{K(this,g)===n&&$(this,g,null)}})}handleNoVideoTrack(){K(this,b)||(this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster())}resetIterator(e){return Y(this,null,function*(){if(K(this,b))return;const t=K(this,m),i=++Q(this,p)._,r=K(this,g);this.stop(),K(this,v).cancel(),$(this,T,!0);try{r&&(yield r),yield G(this,P,R).call(this,e,t,i)}catch(n){if(G(this,P,I).call(this,t)&&K(this,p)===i)throw G(this,P,B).call(this),n}finally{G(this,P,I).call(this,t)&&K(this,p)===i&&$(this,T,!1)}})}updateNextFrame(e){return Y(this,null,function*(){yield K(this,w).update(e)})}render(){K(this,w).render()}start(e){K(this,w).start(e)}stop(){K(this,w).stop()}seek(e){return Y(this,null,function*(){yield this.resetIterator(e)})}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){K(this,b)||($(this,b,!0),Q(this,m)._++,K(this,w).destroy(),K(this,v).cancel(),G(this,P,B).call(this),this.posterDrawn=!1,$(this,k,null),$(this,y,null),this.videoSink=null,this.input=null,this.audioClock=null)}}m=new WeakMap,p=new WeakMap,g=new WeakMap,k=new WeakMap,y=new WeakMap,b=new WeakMap,T=new WeakMap,v=new WeakMap,w=new WeakMap,S=new WeakMap,P=new WeakSet,I=function(e){return!K(this,b)&&K(this,m)===e},x=function(){if(!this.ctx)throw new Error("Canvas 2D context is unavailable.");return this.ctx},C=function(e){K(this,b)||(G(this,P,B).call(this),K(this,S)?K(this,S).call(this,e):this.events.emit("error",e))},B=function(){this.stopIterator().catch(e=>console.warn("MediaBunny iterator cleanup error:",e))},E=function(e,t){K(this,v).cancel(),t&&this.clear(),G(this,P,x).call(this).drawImage(e.canvas,0,0)},_=function(e,t,i,r){return Y(this,null,function*(){if(G(this,P,I).call(this,t))try{this.clear(),this.posterDrawn=!1;const{input:n,videoTrack:s,duration:a}=e;if(this.input=n,this.duration=a,!s)return this.handleNoVideoTrack(),void(null==r||r());const o=null!==s.codec&&(yield s.canDecode());if(!G(this,P,I).call(this,t))return;if(!o)return this.handleNoVideoTrack(),void(null==r||r());const l=yield s.canBeTransparent();if(!G(this,P,I).call(this,t))return;$(this,k,()=>new Go(s,{poolSize:2,fit:"contain",alpha:l})),this.videoSink=K(this,k).call(this),this.width=s.displayWidth,this.height=s.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,null==r||r(),G(this,P,I).call(this,t)&&(yield G(this,P,R).call(this,0,t,i))}catch(n){if(G(this,P,I).call(this,t))throw G(this,P,B).call(this),n}finally{G(this,P,I).call(this,t)&&K(this,p)===i&&$(this,T,!1)}})},R=function(e,t,i){return Y(this,null,function*(){if(!G(this,P,I).call(this,t)||K(this,p)!==i)return;G(this,P,B).call(this),K(this,k)&&this.videoSink===K(this,y)&&(this.videoSink=K(this,k).call(this));const r=this.videoSink;if(!r||!G(this,P,I).call(this,t))return;$(this,y,r);const n=r.canvases(e);this.videoIterator=n;const s=()=>G(this,P,I).call(this,t)&&K(this,p)===i&&this.videoIterator===n,a=yield kc(n);if(!s())return;const o=yield kc(n);s()&&(this.nextFrame=o,a?G(this,P,E).call(this,a,!1):this.drawPoster())})};class wc{constructor({canvas:e,ctx:t,events:i,option:r={}}){var n,s,a,o,l;X(this,F),this.events=i,this.option=r,this.audio=new ic(i,e=>{try{this.pause()}catch(t){console.warn("MediaBunny audio coordinator cleanup:",t)}this.reportError(e)}),this.video=new vc({canvas:e,ctx:t,events:i,timeupdateInterval:null!=(n=r.timeupdateInterval)?n:250,avSyncTolerance:null!=(s=r.avSyncTolerance)?s:.12,dropLateFrames:null!=(a=r.dropLateFrames)&&a,poster:null!=(o=r.poster)?o:"",preflightRange:null!=(l=r.preflightRange)&&l,onError:e=>{try{this.pause()}catch(t){console.warn("MediaBunny video failure cleanup:",t)}this.reportError(e)}}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,$(this,F,new mc(this)),i.addEventListener("ended",()=>{this.destroyed||(this.ended=!0,this.paused=!0,K(this,F).ended(),this.audio.pause())})}load(e){return Y(this,null,function*(){var t,i;if(this.destroyed)return;const r=++this.loadSeq;if(K(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),null==(t=this.loadSession)||t.cancel(),r!==this.loadSeq||this.destroyed)return;if(this.pause(),r!==this.loadSeq||this.destroyed)return;this.disposeInput();const n=new dc;this.loadSession=n,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,n.defer(()=>this.events.emit("waiting")),n.defer(()=>this.events.emit("loadstart"));const s=Number.isFinite(this.option.loadTimeout)&&null!=(i=this.option.loadTimeout)?i:0;try{yield n.wait(this.performLoad(e,r,n),s)}catch(a){if(r!==this.loadSeq)return;const e=++this.loadSeq;if(K(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),n.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.reportError(a)}})}performLoad(e,t){return Y(this,arguments,function*(e,t,i=this.loadSession){const r=()=>!this.destroyed&&t===this.loadSeq;if(!i||!(yield this.video.preflight(e,i.signal,r))||!r())return;const n=uc(e);if(!n)return this.video.handleNoVideoTrack(),void(r()&&this.audio.handleNoAudioTrack());i.own(n);const s=yield function(e,t){return Y(this,null,function*(){const i=yield e.getPrimaryVideoTrack(),r=i?yield i.getPrimaryPairableAudioTrack():yield e.getPrimaryAudioTrack(),n=yield hc({input:e,videoTrack:i,audioTrack:r}),s=i||r,a=cc(t);return{input:e,videoTrack:i,audioTrack:r,duration:n,isLive:!Number.isFinite(n)&&Boolean(s&&(yield s.isLive())),isHls:a,videoMode:a?"auto":"manual",audioMode:a?"auto":"manual"}})}(n,e);if(!r())return;if(!s.videoTrack&&!s.audioTrack)throw this.video.handleNoVideoTrack(),this.video.duration=Number.NaN,this.audio.duration=Number.NaN,new Error("Input has no audio or video tracks.");this.input=n,this.media=s;const a=function(e,t){let i=!1,r=!1,n=!1;function 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B=r.pos;if(r.readBits(1)){if(r.readBits(1)){const e=r.readBits(8);if(255===e)S={num:r.readBits(16),den:r.readBits(16)};else{const t=Yt[e];t&&(S=t)}}r.readBits(1)&&r.skipBits(1);if(r.readBits(1)){r.skipBits(3),w=r.readBits(1);r.readBits(1)&&(b=r.readBits(8),T=r.readBits(8),v=r.readBits(8))}r.readBits(1)&&(ue(r),ue(r));r.readBits(1)&&(r.skipBits(32),r.skipBits(32),r.skipBits(1));const e=r.readBits(1);e&&Zt(r);const t=r.readBits(1);t&&Zt(r),(e||t)&&r.skipBits(1),r.skipBits(1),x=r.pos,C=r.readBits(1),C&&(r.skipBits(1),ue(r),ue(r),ue(r),ue(r),P=ue(r),I=ue(r))}if(null===P){oe(null===I);if(44!==n&&86!==n&&100!==n&&110!==n&&122!==n&&244!==n||!(16&s)){const e=h+1,i=(2-y)*(f+1),r=null!=(t=Gi.find(e=>e.level>=a))?t:ce(Gi),n=Math.min(Math.floor(r.maxDpbMbs/(e*i)),16);P=n,I=n}else P=0,I=0}return oe(null!==I),{emulationUnpreventedBytes:i,profileIdc:n,constraintFlags:s,levelIdc:a,frameMbsOnlyFlag:y,chromaFormatIdc:o,bitDepthLumaMinus8:l,bitDepthChromaMinus8:c,codedWidth:m,codedHeight:p,displayWidth:g,displayHeight:k,pixelAspectRatio:S,colourPrimaries:b,matrixCoefficients:v,transferCharacteristics:T,fullRangeFlag:w,numReorderFrames:P,maxDecFrameBuffering:I,vuiParametersFlagBitOffset:B,bitstreamRestrictionFlagBitOffset:x,bitstreamRestrictionFlag:C}}catch(i){return Pt._error("Error parsing AVC SPS:",i),null}},Zt=e=>{const t=ue(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)ue(e),ue(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},ei=e=>{oe(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new Bt(e.emulationUnpreventedBytes),r=new Bt(t);null===e.bitstreamRestrictionFlag?(r.copyBits(e.vuiParametersFlagBitOffset,i),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(oe(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),de(r,2),de(r,1),de(r,16),de(r,16),de(r,e.numReorderFrames),de(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const n=r.pos/8;return oe(Number.isInteger(n)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,n))},ti=(e,t)=>{if(t.description){const i=3&fe(t.description)[21];return qt(e,i+1)}return Ut(e)},ii=e=>e>>1&63,ri=e=>{try{const t=new Bt(Vt(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:n,general_tier_flag:s,general_profile_idc:a,general_profile_compatibility_flags:o,general_constraint_indicator_flags:l,general_level_idc:c}=si(t,i);ue(t);const u=ue(t);let d=0;3===u&&(d=t.readBits(1));const h=ue(t),f=ue(t);let m=h,p=f;if(t.readBits(1)){const e=ue(t),i=ue(t),r=ue(t),n=ue(t);let s=1,a=1;const o=0===d?u:0;1===o?(s=2,a=2):2===o&&(s=2,a=1),m-=(e+i)*s,p-=(r+n)*a}const g=ue(t),k=ue(t);ue(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)ue(t),b=ue(t),ue(t);ue(t),ue(t),ue(t),ue(t),ue(t),ue(t),t.readBits(1)&&t.readBits(1)&&ai(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),ue(t),ue(t),t.skipBits(1));const T=ue(t);if(oi(t,T),t.readBits(1)){const e=ue(t);for(let i=0;i<e;i++)ue(t),t.skipBits(1)}t.skipBits(1),t.skipBits(1);let v=2,w=2,S=2,P=0,I=0,x={num:1,den:1};if(t.readBits(1)){const e=ci(t,i);x=e.pixelAspectRatio,v=e.colourPrimaries,w=e.transferCharacteristics,S=e.matrixCoefficients,P=e.fullRangeFlag,I=e.minSpatialSegmentationIdc}return{displayWidth:m,displayHeight:p,pixelAspectRatio:x,colourPrimaries:v,transferCharacteristics:w,matrixCoefficients:S,fullRangeFlag:P,maxDecFrameBuffering:b+1,spsMaxSubLayersMinus1:i,spsTemporalIdNestingFlag:r,generalProfileSpace:n,generalTierFlag:s,generalProfileIdc:a,generalProfileCompatibilityFlags:o,generalConstraintIndicatorFlags:l,generalLevelIdc:c,chromaFormatIdc:u,bitDepthLumaMinus8:g,bitDepthChromaMinus8:k,minSpatialSegmentationIdc:I}}catch(t){return Pt._error("Error parsing HEVC SPS:",t),null}},ni=e=>{try{const t=[],i=[],r=[],n=[];for(const l of Ut(e)){const s=e.subarray(l.offset,l.offset+l.length),a=ii(s[0]);a===Lt.VPS_NUT?t.push(s):a===Lt.SPS_NUT?i.push(s):a===Lt.PPS_NUT?r.push(s):a!==Lt.PREFIX_SEI_NUT&&a!==Lt.SUFFIX_SEI_NUT||n.push(s)}if(0===i.length||0===r.length)return null;const s=ri(i[0]);if(!s)return null;let a=0;if(r.length>0){const e=r[0],t=new Bt(Vt(e));t.skipBits(16),ue(t),ue(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),ue(t),ue(t),he(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&ue(t),he(t),he(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),n=t.readBits(1);a=i||n?i&&!n?2:!i&&n?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:Lt.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Lt.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Lt.PPS_NUT,nalUnits:r}]:[],...n.length?[{arrayCompleteness:1,nalUnitType:ii(n[0][0]),nalUnits:n}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:a,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return Pt._error("Error building HEVC Decoder Configuration Record:",t),null}},si=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),n=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const a=new Uint8Array(6);for(let u=0;u<6;u++)a[u]=e.readBits(8);const o=e.readBits(8),l=[],c=[];for(let u=0;u<t;u++)l.push(e.readBits(1)),c.push(e.readBits(1));if(t>0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u<t;u++)l[u]&&e.skipBits(88),c[u]&&e.skipBits(8);return{general_profile_space:i,general_tier_flag:r,general_profile_idc:n,general_profile_compatibility_flags:s,general_constraint_indicator_flags:a,general_level_idc:o}},ai=e=>{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&he(e);for(let t=0;t<i;t++)he(e)}else ue(e)}},oi=(e,t)=>{const i=[];for(let r=0;r<t;r++)i[r]=li(e,r,t,i)},li=(e,t,i,r)=>{var n;let s=0,a=0,o=0;if(0!==t&&(a=e.readBits(1)),a){if(t===i){o=t-(ue(e)+1)}else o=t-1;e.readBits(1),ue(e);const a=null!=(n=r[o])?n:0;for(let 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r=!1,n=!1,s=!1;r=1===e.readBits(1),n=1===e.readBits(1),(r||n)&&(s=1===e.readBits(1),s&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),s&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5));for(let a=0;a<=i;a++){let t=!0;1===e.readBits(1)||(t=1===e.readBits(1));let i=!1;t?ue(e):i=1===e.readBits(1);let a=1;if(!i){a=ue(e)+1}r&&di(e,a,s),n&&di(e,a,s)}},di=(e,t,i)=>{for(let r=0;r<t;r++)ue(e),ue(e),i&&(ue(e),ue(e)),e.readBits(1)};var hi,fi;(fi=hi||(hi={}))[fi.audAllowed=0]="audAllowed",fi[fi.beforeFirstVcl=1]="beforeFirstVcl",fi[fi.afterFirstVcl=2]="afterFirstVcl",fi[fi.eoBitstreamAllowed=3]="eoBitstreamAllowed",fi[fi.noMoreDataAllowed=4]="noMoreDataAllowed";const mi=(e,t)=>{const i=new Set;let r=hi.audAllowed;for(const s of ti(e,t)){if(r===hi.noMoreDataAllowed){i.add(s.offset);continue}const t=ii(e[s.offset]);if(r===hi.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let n=!1;35===t?r>hi.audAllowed?n=!0:r=hi.beforeFirstVcl:t<=31?r>hi.afterFirstVcl?n=!0:r=hi.afterFirstVcl:36===t?r!==hi.afterFirstVcl?n=!0:r=hi.eoBitstreamAllowed:37===t?r<hi.afterFirstVcl?n=!0:r=hi.noMoreDataAllowed:32===t||33===t||34===t||39===t||t>=41&&t<=44||t>=48&&t<=55?r>hi.beforeFirstVcl?n=!0:r=hi.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r<hi.afterFirstVcl&&(n=!0),n&&i.add(s.offset)}if(0===i.size)return null;const n=[];for(const s of ti(e,t))i.has(s.offset)||n.push(e.subarray(s.offset,s.offset+s.length));return((e,t)=>{if(t.description){const i=3&fe(t.description)[21];return Xt(e,i+1)}return Kt(e)})(n,t)},pi={1:{colourPrimaries:5,transferCharacteristics:6,matrixCoefficients:5},2:{colourPrimaries:1,transferCharacteristics:1,matrixCoefficients:1},3:{colourPrimaries:6,transferCharacteristics:6,matrixCoefficients:6},4:{colourPrimaries:7,transferCharacteristics:7,matrixCoefficients:7},5:{colourPrimaries:9,transferCharacteristics:14,matrixCoefficients:9},7:{colourPrimaries:1,transferCharacteristics:13,matrixCoefficients:0}},gi=e=>{var t,i,r;const n=new Bt(e);if(2!==n.readBits(2))return null;const s=n.readBits(1),a=(n.readBits(1)<<1)+s;3===a&&n.skipBits(1);if(1===n.readBits(1))return null;if(0!==n.readBits(1))return null;n.skipBits(2);if(4817730!==n.readBits(24))return null;let o=8;if(a>=2){o=n.readBits(1)?12:10}const l=n.readBits(3);let c=0,u=0;if(7!==l){if(u=n.readBits(1),1===a||3===a){const e=n.readBits(1),t=n.readBits(1);c=e||t?e&&!t?2:1:3,n.skipBits(1)}else c=1}else c=3,u=1;const d=(n.readBits(16)+1)*(n.readBits(16)+1);let h=ce(Qi).level;for(const m of Qi)if(d<=m.maxPictureSize){h=m.level;break}const f=pi[l];return{profile:a,level:h,bitDepth:o,chromaSubsampling:c,videoFullRangeFlag:u,colourPrimaries:null!=(t=null==f?void 0:f.colourPrimaries)?t:2,transferCharacteristics:null!=(i=null==f?void 0:f.transferCharacteristics)?i:2,matrixCoefficients:null!=(r=null==f?void 0:f.matrixCoefficients)?r:2}},ki=function*(e){const t=new Bt(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*q(2,7*i),!(128&r))break;if(7===i&&128&r)return null}return e>q(2,32)-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const r=t.readBits(4),n=t.readBits(1),s=t.readBits(1);let a;if(t.skipBits(1),n&&t.skipBits(8),s){const e=i();if(null===e)return;a=e}else a=Math.floor(t.getBitsLeft()/8);oe(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+a)},t.skipBits(8*a)}},yi=e=>{for(const{type:t,data:i}of ki(e)){if(1!==t)continue;const e=new Bt(i),r=e.readBits(3);e.readBits(1);const n=e.readBits(1);let s=0,a=0,o=0;if(n)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let t=0;for(;t<32&&!e.readBits(1);)t++;t<32&&e.skipBits(t)}t=e.readBits(1),t&&(o=e.readBits(5),e.skipBits(32),e.skipBits(5),e.skipBits(5))}const i=e.readBits(1),r=e.readBits(5);for(let n=0;n<=r;n++){e.skipBits(12);const r=e.readBits(5);if(0===n&&(s=r),r>7){const t=e.readBits(1);0===n&&(a=t)}if(t){if(e.readBits(1)){const t=o+1;e.skipBits(t),e.skipBits(t),e.skipBits(1)}}if(i){e.readBits(1)&&e.skipBits(4)}}}const l=e.readBits(4),c=e.readBits(4),u=l+1;e.skipBits(u);const d=c+1;e.skipBits(d);let h=0;if(h=n?0:e.readBits(1),h&&(e.skipBits(4),e.skipBits(3)),e.skipBits(1),e.skipBits(1),e.skipBits(1),!n){e.skipBits(1),e.skipBits(1),e.skipBits(1),e.skipBits(1);const t=e.readBits(1);t&&(e.skipBits(1),e.skipBits(1));let i=0;if(i=e.readBits(1)?2:e.readBits(1),i>0){e.readBits(1)||e.skipBits(1)}t&&e.skipBits(3)}e.skipBits(1),e.skipBits(1),e.skipBits(1);const f=e.readBits(1);let m=8;if(2===r&&f){m=e.readBits(1)?12:10}else r<=2&&(m=f?10:8);let p=0;1!==r&&(p=e.readBits(1));let g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,T=1,v=1,w=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,T=0,v=0):(b=e.readBits(1),0===r?(T=1,v=1):1===r?(T=0,v=0):12===m?(T=e.readBits(1),v=T?e.readBits(1):0):(T=1,v=0),T&&v&&(w=e.readBits(2))),{profile:r,level:s,tier:a,bitDepth:m,monochrome:p,chromaSubsamplingX:T,chromaSubsamplingY:v,chromaSamplePosition:w,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},bi=e=>{if(e.length<36)return null;const t=me(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},Ti=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],vi=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in Setup header.");if("vorbis"!==String.fromCharCode(...e.slice(1,7)))throw new Error("Invalid packet signature in Setup header.");const t=e.length,i=new Uint8Array(t);for(let u=0;u<t;u++)i[u]=e[t-1-u];const r=new Bt(i);let n=0;for(;r.getBitsLeft()>97;)if(1===r.readBits(1)){n=r.pos;break}if(0===n)throw new Error("Invalid Setup header: framing bit not found.");let s=0,a=!1,o=0;for(;r.getBitsLeft()>=97;){const e=r.pos,t=r.readBits(8),i=r.readBits(16),n=r.readBits(16);if(t>63||0!==i||0!==n){r.pos=e;break}if(r.skipBits(1),s++,s>64)break;r.clone().readBits(6)+1===s&&(a=!0,o=s)}if(!a)throw new Error("Invalid Setup header: mode header not found.");if(o>63)throw new Error(`Unsupported mode count: ${o}.`);const l=o;r.pos=0,r.skipBits(n);const c=Array(l).fill(0);for(let u=l-1;u>=0;u--)r.skipBits(40),c[u]=r.readBits(1);return{modeBlockflags:c}},wi=(e,t,i)=>{switch(e){case"avc":for(const e of Wt(i,t)){const t=i[e.offset],r=Ht(t);if(r>=Nt.NON_IDR_SLICE&&r<=Nt.SLICE_DPC)return"delta";if(r===Nt.IDR)return"key";if(r===Nt.SEI&&!at()){const t=i.subarray(e.offset,e.offset+e.length),r=Vt(t);let n=1;do{let e=0;for(;;){const t=r[n++];if(void 0===t)break;if(e+=t,t<255)break}let t=0;for(;;){const e=r[n++];if(void 0===e)break;if(t+=e,e<255)break}if(e===6){const e=new Bt(r);e.pos=8*n;const t=ue(e),i=e.readBits(1);if(0===t&&1===i)return"key"}n+=t}while(n<r.length-1)}}return"delta";case"hevc":for(const e of ti(i,t)){const t=ii(i[e.offset]);if(t<Lt.BLA_W_LP)return"delta";if(t<=Lt.RSV_IRAP_VCL23)return"key"}return"delta";case"vp8":return 0===(1&i[0])?"key":"delta";case"vp9":{const e=new Bt(i);if(2!==e.readBits(2))return null;const t=e.readBits(1);3===(e.readBits(1)<<1)+t&&e.skipBits(1);if(e.readBits(1))return null;return 0===e.readBits(1)?"key":"delta"}case"av1":{let e=!1;for(const{type:t,data:r}of ki(i))if(1===t){const t=new Bt(r);t.skipBits(4),e=!!t.readBits(1)}else if(3===t||6===t||7===t){if(e)return"key";const t=new Bt(r);if(t.readBits(1))return null;return 0===t.readBits(2)?"key":"delta"}return null}case"prores":return"key";default:Oe(e),oe(!1)}};var Si,Pi;(Pi=Si||(Si={}))[Pi.STREAMINFO=0]="STREAMINFO",Pi[Pi.VORBIS_COMMENT=4]="VORBIS_COMMENT",Pi[Pi.PICTURE=6]="PICTURE";const Ii=(e,t)=>{var i,r;const n=me(e);let s=0;const a=n.getUint32(s,!0);s+=4;const o=pe.decode(e.subarray(s,s+a));s+=a,a>0&&(null!=t.raw||(t.raw={}),null!=(i=t.raw).vendor||(i.vendor=o));const l=n.getUint32(s,!0);s+=4;for(let c=0;c<l;c++){const i=n.getUint32(s,!0);s+=4;const a=pe.decode(e.subarray(s,s+i));s+=i;const o=a.indexOf("=");if(-1===o)continue;const l=a.slice(0,o).toUpperCase(),c=a.slice(o+1);switch(null!=t.raw||(t.raw={}),Array.isArray(t.raw[l])?t.raw[l]=[...t.raw[l],c]:"string"===typeof t.raw[l]?t.raw[l]=[t.raw[l],c]:null!=(r=t.raw)[l]||(r[l]=c),l){case"TITLE":null!=t.title||(t.title=c);break;case"DESCRIPTION":null!=t.description||(t.description=c);break;case"ARTIST":null!=t.artist||(t.artist=c);break;case"ALBUM":null!=t.album||(t.album=c);break;case"ALBUMARTIST":null!=t.albumArtist||(t.albumArtist=c);break;case"COMMENT":null!=t.comment||(t.comment=c);break;case"LYRICS":null!=t.lyrics||(t.lyrics=c);break;case"TRACKNUMBER":{const e=c.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=t.trackNumber||(t.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.tracksTotal||(t.tracksTotal=r))}break;case"TRACKTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.tracksTotal||(t.tracksTotal=e))}break;case"DISCNUMBER":{const e=c.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=t.discNumber||(t.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.discsTotal||(t.discsTotal=r))}break;case"DISCTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.discsTotal||(t.discsTotal=e))}break;case"DATE":{const e=new Date(c);Number.isNaN(e.getTime())||null!=t.date||(t.date=e)}break;case"GENRE":null!=t.genre||(t.genre=c);break;case"METADATA_BLOCK_PICTURE":{const e=ht(c),i=me(e),r=i.getUint32(0,!1),n=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+n)),a=i.getUint32(8+n,!1),o=pe.decode(e.subarray(12+n,12+n+a)),l=i.getUint32(n+a+28),u=e.subarray(n+a+32,n+a+32+l);null!=t.images||(t.images=[]),t.images.push({data:u,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},xi=[2,1,2,3,3,4,4,5],Ci=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new Bt(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),n=t.readBits(5);if(n>8)return null;const s=t.readBits(3),a=t.readBits(3);0!==(1&a)&&1!==a&&t.skipBits(2),0!==(4&a)&&t.skipBits(2),2===a&&t.skipBits(2);return{fscod:i,bsid:n,bsmod:s,acmod:a,lfeon:t.readBits(1),bitRateCode:Math.floor(r/2)}},Bi=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,576,384,418,576,448,486,672,448,488,672,512,556,768,512,558,768,640,696,960,640,698,960,768,834,1152,768,836,1152,896,974,1344,896,976,1344,1024,1114,1536,1024,1116,1536,1280,1392,1920,1280,1394,1920,1536,1670,2304,1536,1672,2304,1792,1950,2688,1792,1952,2688,2048,2228,3072,2048,2230,3072,2304,2506,3456,2304,2508,3456,2560,2786,3840,2560,2788,3840],Ei=[1,2,3,6],_i=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new Bt(e);t.skipBits(16);const i=t.readBits(2);if(t.skipBits(3),0!==i&&2!==i)return null;const r=t.readBits(11),n=t.readBits(2);let s,a=0;3===n?(a=t.readBits(2),s=3):s=t.readBits(2);const o=t.readBits(3),l=t.readBits(1),c=t.readBits(5);if(c<11||c>16)return null;const u=Ei[s];let d;d=n<3?Mt[n]/1e3:Dt[a]/1e3;return{dataRate:Math.round((r+1)*d/(16*u)),substreams:[{fscod:n,fscod2:a,bsid:c,bsmod:0,acmod:o,lfeon:l,numDepSub:0,chanLoc:0}]}},Ri=e=>{const t=e.substreams[0];return oe(t),t.fscod<3?Mt[t.fscod]:null!==t.fscod2&&t.fscod2<3?Dt[t.fscod2]:null},Fi=e=>{const t=e.substreams[0];oe(t);let i=xi[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let r=0;r<9;r++)t.chanLoc&1<<8-r&&(i+=e[r])}return i},Ai=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],Mi=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],Di=[16,16,20,20,0,24,24,0],Ni=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],Oi=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],Li=[32e3,44100,48e3,0],zi=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],Ui=[512,1024,2048,4096],qi=e=>{const t=Hi(e),i=me(e);let r=t?4*Math.ceil(t.frameSize/4):0,n=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=Vi(e.subarray(r));if(!t)break;null!=n||(n=t),r+=t.frameSize}if(t)return{frameSize:n?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==n};if(!(null==n?void 0:n.asset))return null;const{asset:s}=n;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},Wi=e=>{const t=qi(e);return(null==t?void 0:t.core)?t.hasExtensions?"dtsh":"dtsc":null},Hi=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new Bt(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const n=t.readBits(14)+1;if(n<96)return null;const s=t.readBits(6);if(s>=Ni.length)return null;const a=Ai[t.readBits(4)];if(0===a)return null;const o=Mi[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const l=t.readBits(2);if(3===l)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const c=Di[t.readBits(3)];if(0===c)return null;const u=0!==l;return{frameSize:n,sampleRate:a,numberOfChannels:Ni[s]+(u?1:0),sampleCount:32*r,channelLayout:Oi[s]|(u?8:0),amode:s,lfePresent:u,bitRate:o,pcmResolution:c}},Vi=e=>{if(e.length<10)return null;if(100!==e[0]||88!==e[1]||32!==e[2]||37!==e[3])return null;const t=new Bt(e);t.skipBits(32),t.skipBits(8);const i=t.readBits(2),r=t.readBits(1),n=8+4*r,s=16+4*r;t.skipBits(n);const a=t.readBits(s)+1,o={frameSize:a,asset:null};if(!t.readBits(1))return o;const l=Li[t.readBits(2)],c=512*(t.readBits(3)+1);t.readBits(1)&&t.skipBits(36);const u=t.readBits(3)+1,d=t.readBits(3)+1,h=[];for(let k=0;k<u;k++)h.push(t.readBits(i+1));for(const k of h)t.skipBits(8*Xe(k));if(t.readBits(1)){t.skipBits(2);const e=t.readBits(2)+1<<2,i=t.readBits(2)+1;t.skipBits(i*e)}for(let k=0;k<d;k++)t.skipBits(s);t.skipBits(9),t.skipBits(3),t.readBits(1)&&t.skipBits(4),t.readBits(1)&&t.skipBits(24),t.readBits(1)&&t.skipBits(8*(t.readBits(10)+1));const f=t.readBits(5)+1,m=zi[t.readBits(4)],p=t.readBits(8)+1;let g=0;if(t.readBits(1)&&(p>2&&t.skipBits(1),p>6&&t.skipBits(1),t.readBits(1))){const e=t.readBits(2)+1<<2;g=t.readBits(e)}return 0===l||t.getBitsLeft()<0?o:{frameSize:a,asset:{sampleRate:m,numberOfChannels:p,sampleCount:Math.round(c*m/l),channelLayout:g,pcmResolution:f}}},ji=e=>Xe(e)+Xe(44646&e),Ki=["avc","hevc","vp9","av1","vp8","prores"],Xi=["pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be","pcm-u8","pcm-s8","ulaw","alaw"],$i=["aac","opus","mp3","vorbis","flac","ac3","eac3","dts",...Xi],Gi=[{maxMacroblocks:99,maxBitrate:64e3,maxDpbMbs:396,level:10},{maxMacroblocks:396,maxBitrate:192e3,maxDpbMbs:900,level:11},{maxMacroblocks:396,maxBitrate:384e3,maxDpbMbs:2376,level:12},{maxMacroblocks:396,maxBitrate:768e3,maxDpbMbs:2376,level:13},{maxMacroblocks:396,maxBitrate:2e6,maxDpbMbs:2376,level:20},{maxMacroblocks:792,maxBitrate:4e6,maxDpbMbs:4752,level:21},{maxMacroblocks:1620,maxBitrate:4e6,maxDpbMbs:8100,level:22},{maxMacroblocks:1620,maxBitrate:1e7,maxDpbMbs:8100,level:30},{maxMacroblocks:3600,maxBitrate:14e6,maxDpbMbs:18e3,level:31},{maxMacroblocks:5120,maxBitrate:2e7,maxDpbMbs:20480,level:32},{maxMacroblocks:8192,maxBitrate:2e7,maxDpbMbs:32768,level:40},{maxMacroblocks:8192,maxBitrate:5e7,maxDpbMbs:32768,level:41},{maxMacroblocks:8704,maxBitrate:5e7,maxDpbMbs:34816,level:42},{maxMacroblocks:22080,maxBitrate:135e6,maxDpbMbs:110400,level:50},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:51},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:52},{maxMacroblocks:139264,maxBitrate:24e7,maxDpbMbs:696320,level:60},{maxMacroblocks:139264,maxBitrate:48e7,maxDpbMbs:696320,level:61},{maxMacroblocks:139264,maxBitrate:8e8,maxDpbMbs:696320,level:62}],Qi=[{maxPictureSize:36864,maxBitrate:2e5,level:10},{maxPictureSize:73728,maxBitrate:8e5,level:11},{maxPictureSize:122880,maxBitrate:18e5,level:20},{maxPictureSize:245760,maxBitrate:36e5,level:21},{maxPictureSize:552960,maxBitrate:72e5,level:30},{maxPictureSize:983040,maxBitrate:12e6,level:31},{maxPictureSize:2228224,maxBitrate:18e6,level:40},{maxPictureSize:2228224,maxBitrate:3e7,level:41},{maxPictureSize:8912896,maxBitrate:6e7,level:50},{maxPictureSize:8912896,maxBitrate:12e7,level:51},{maxPictureSize:8912896,maxBitrate:18e7,level:52},{maxPictureSize:35651584,maxBitrate:18e7,level:60},{maxPictureSize:35651584,maxBitrate:24e7,level:61},{maxPictureSize:35651584,maxBitrate:48e7,level:62}],Yi=".01.01.01.01.00",Ji=".0.110.01.01.01.0",Zi=["ap4x","ap4h","apch","apcn","apcs","apco"],er=["dtsc","dtsh","dtsl","dtse"],tr=e=>{const{codec:t,codecDescription:i,colorSpace:r,avcCodecInfo:n,hevcCodecInfo:s,vp9CodecInfo:a,av1CodecInfo:o,proresFormat:l}=e;if("avc"===t){if(oe(null!==e.avcType),n){const t=new Uint8Array([n.avcProfileIndication,n.profileCompatibility,n.avcLevelIndication]);return`avc${e.avcType}.${Be(t)}`}if(!i||i.byteLength<4)throw new TypeError("AVC decoder description is not provided or is not at least 4 bytes long.");return`avc${e.avcType}.${Be(i.subarray(1,4))}`}if("hevc"===t){let e,t,r,n,a,o;if(s)e=s.generalProfileSpace,t=s.generalProfileIdc,r=Ee(s.generalProfileCompatibilityFlags),n=s.generalTierFlag,a=s.generalLevelIdc,o=[...s.generalConstraintIndicatorFlags];else{if(!i||i.byteLength<23)throw new TypeError("HEVC decoder description is not provided or is not at least 23 bytes long.");const s=me(i),l=s.getUint8(1);e=l>>6&3,t=31&l,r=Ee(s.getUint32(2)),n=l>>5&1,a=s.getUint8(12),o=[];for(let e=0;e<6;e++)o.push(s.getUint8(6+e))}let l="hev1.";for(l+=["","A","B","C"][e]+t,l+=".",l+=r.toString(16).toUpperCase(),l+=".",l+=0===n?"L":"H",l+=a;o.length>0&&0===o[o.length-1];)o.pop();return o.length>0&&(l+=".",l+=o.map(e=>e.toString(16).toUpperCase()).join(".")),l}if("vp8"===t)return"vp8";if("vp9"===t){if(!a){const t=e.width*e.height;let i=ce(Qi).level;for(const e of Qi)if(t<=e.maxPictureSize){i=e.level;break}return`vp09.00.${i.toString().padStart(2,"0")}.08`}let t=`vp09.${a.profile.toString().padStart(2,"0")}.${a.level.toString().padStart(2,"0")}.${a.bitDepth.toString().padStart(2,"0")}.${a.chromaSubsampling.toString().padStart(2,"0")}`;return t+=`.${a.colourPrimaries.toString().padStart(2,"0")}.${a.transferCharacteristics.toString().padStart(2,"0")}.${a.matrixCoefficients.toString().padStart(2,"0")}.${a.videoFullRangeFlag.toString().padStart(2,"0")}`,t.endsWith(Yi)&&(t=t.slice(0,-15)),t}if("av1"===t){if(!o){const t=e.width*e.height;let i=ce(Qi).level;for(const e of Qi)if(t<=e.maxPictureSize){i=e.level;break}return`av01.0.${i.toString().padStart(2,"0")}M.08`}const t=o.profile,i=o.level.toString().padStart(2,"0"),n=o.tier?"H":"M",s=o.bitDepth.toString().padStart(2,"0"),a=o.monochrome?"1":"0",l=100*o.chromaSubsamplingX+10*o.chromaSubsamplingY+1*(o.chromaSubsamplingX&&o.chromaSubsamplingY?o.chromaSamplePosition:0),c=(null==r?void 0:r.primaries)?ke[r.primaries]:1,u=(null==r?void 0:r.transfer)?be[r.transfer]:1,d=(null==r?void 0:r.matrix)?ve[r.matrix]:1,h=(null==r?void 0:r.fullRange)?1:0;let f=`av01.${t}.${i}${n}.${s}`;return f+=`.${a}.${l.toString().padStart(3,"0")}`,f+=`.${c.toString().padStart(2,"0")}`,f+=`.${u.toString().padStart(2,"0")}`,f+=`.${d.toString().padStart(2,"0")}`,f+=`.${h}`,f.endsWith(Ji)&&(f=f.slice(0,-17)),f}if("prores"===t)return null!=l?l:"apch";throw null!==t&&Oe(t),new TypeError(`Unhandled codec '${t}'.`)},ir=e=>{var t,i,r,n,s,a;switch(e.codec){case"avc":{let r=null==(t=e.avcCodecInfo)?void 0:t.sequenceParameterSets[0];if(!r&&e.codecDescription&&(r=null==(i=Qt(e.codecDescription))?void 0:i.sequenceParameterSets[0]),r){const e=Jt(r);if(e)return{primaries:ye[e.colourPrimaries],transfer:Te[e.transferCharacteristics],matrix:we[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"hevc":{let t=null==(n=null==(r=e.hevcCodecInfo)?void 0:r.arrays.find(e=>e.nalUnitType===Lt.SPS_NUT))?void 0:n.nalUnits[0];if(!t&&e.codecDescription&&(t=null==(a=null==(s=(e=>{try{const t=me(e);let i=0;const r=t.getUint8(i++),n=t.getUint8(i++),s=n>>6&3,a=n>>5&1,o=31&n,l=t.getUint32(i,!1);i+=4;const c=e.subarray(i,i+6);i+=6;const u=t.getUint8(i++),d=(15&t.getUint8(i++))<<8|t.getUint8(i++),h=3&t.getUint8(i++),f=3&t.getUint8(i++),m=7&t.getUint8(i++),p=7&t.getUint8(i++),g=t.getUint16(i,!1);i+=2;const k=t.getUint8(i++),y=k>>6&3,b=k>>3&7,T=k>>2&1,v=3&k,w=t.getUint8(i++),S=[];for(let P=0;P<w;P++){const r=t.getUint8(i++),n=r>>7&1,s=63&r,a=t.getUint16(i,!1);i+=2;const o=[];for(let l=0;l<a;l++){const r=t.getUint16(i,!1);i+=2,o.push(e.subarray(i,i+r)),i+=r}S.push({arrayCompleteness:n,nalUnitType:s,nalUnits:o})}return{configurationVersion:r,generalProfileSpace:s,generalTierFlag:a,generalProfileIdc:o,generalProfileCompatibilityFlags:l,generalConstraintIndicatorFlags:c,generalLevelIdc:u,minSpatialSegmentationIdc:d,parallelismType:h,chromaFormatIdc:f,bitDepthLumaMinus8:m,bitDepthChromaMinus8:p,avgFrameRate:g,constantFrameRate:y,numTemporalLayers:b,temporalIdNested:T,lengthSizeMinusOne:v,arrays:S}}catch(t){return Pt._error("Error deserializing HEVC Decoder Configuration Record:",t),null}})(e.codecDescription))?void 0:s.arrays.find(e=>e.nalUnitType===Lt.SPS_NUT))?void 0:a.nalUnits[0]),t){const e=ri(t);if(e)return{primaries:ye[e.colourPrimaries],transfer:Te[e.transferCharacteristics],matrix:we[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"vp8":break;case"vp9":if(e.vp9CodecInfo)return{primaries:ye[e.vp9CodecInfo.colourPrimaries],transfer:Te[e.vp9CodecInfo.transferCharacteristics],matrix:we[e.vp9CodecInfo.matrixCoefficients],fullRange:!!e.vp9CodecInfo.videoFullRangeFlag};break;case"av1":if(e.av1CodecInfo)return{primaries:ye[e.av1CodecInfo.colourPrimaries],transfer:Te[e.av1CodecInfo.transferCharacteristics],matrix:we[e.av1CodecInfo.matrixCoefficients],fullRange:!!e.av1CodecInfo.videoFullRangeFlag};break;case"prores":if(e.proresCodecInfo)return{primaries:ye[e.proresCodecInfo.colourPrimaries],transfer:Te[e.proresCodecInfo.transferCharacteristics],matrix:we[e.proresCodecInfo.matrixCoefficients],fullRange:e.proresCodecInfo.fullRange}}return{primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0}},rr=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:n}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=Rt(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return null!=n?n:"dtsc";if(t&&Xi.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},nr=48e3,sr=/^pcm-([usf])(\d+)(be)?$/,ar=e=>{if(oe(Xi.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=sr.exec(e);let i;oe(t),i="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:i,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?q(2,7):0}},or=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":Zi.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":er.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":sr.test(e)?e:"webvtt"===e?"webvtt":null,lr=[44100,48e3,32e3],cr=[-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,32,40,48,56,64,80,96,112,128,160,192,224,256,320,-1,-1,32,48,56,64,80,96,112,128,160,192,224,256,320,384,-1,-1,32,64,96,128,160,192,224,256,288,320,352,384,416,448,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,32,48,56,64,80,96,112,128,144,160,176,192,224,256,-1],ur=1483304551,dr=1231971951,hr=(e,t)=>3===e?3===t?21:36:3===t?13:21,fr=(e,t)=>{const i=e>>>24,r=e>>>16&255,n=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==n&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let a=0,o=0;16&r?a=8&r?0:1:(a=1,o=1);const l=r>>3&3,c=r>>1&3,u=(n>>2&3)%3,d=s>>6&3,h=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=cr[16*a*4+16*c+(n>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=lr[u]>>a+o,b=((e,t,i,r,n)=>0===t?0:1===t?Math.floor(144*i/(r<<e))+n:2===t?Math.floor(144*i/r)+n:4*(Math.floor(12*i/r)+n))(a,c,k,y,n>>1&1);if(null!==t&&t<b)return{header:null,bytesAdvanced:1};let T;return T=3===l?3===c?384:1152:3===c?384:2===c?1152:576,{header:{totalSize:b,mpegVersionId:l,lowSamplingFrequency:a,layer:c,bitrate:k,frequencyIndex:u,sampleRate:y,channel:d,modeExtension:h,copyright:f,original:m,emphasis:p,audioSamplesInFrame:T},bytesAdvanced:1}},mr=e=>{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var pr,gr;(gr=pr||(pr={}))[gr.FrameCount=1]="FrameCount",gr[gr.FileSize=2]="FileSize",gr[gr.Toc=4]="Toc";const kr=e=>3===e?1:2;class yr{constructor(e){this.input=e}dispose(){}}const br=new Uint8Array(0);class Tr{constructor(e,t,i,r,n=-1,s,a){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=n,e===br&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(n))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==a&&("object"!==typeof a||!a))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==(null==a?void 0:a.alpha)&&!(a.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==(null==a?void 0:a.alphaByteLength)&&(!Number.isInteger(a.alphaByteLength)||a.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=null!=a?a:{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===br}get microsecondTimestamp(){return Math.trunc(Qe*this.timestamp)}get microsecondDuration(){return Math.trunc(Qe*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){var i;if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const r=new Uint8Array(e.byteLength);return e.copyTo(r),new Tr(r,e.type,e.timestamp/1e6,(null!=(i=e.duration)?i:0)/1e6,void 0,void 0,t)}clone(e){var t,i,r,n,s,a;if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==(null==e?void 0:e.data)&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==(null==e?void 0:e.type)&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==(null==e?void 0:e.timestamp)&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==(null==e?void 0:e.duration)&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sequenceNumber)&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sideData)&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new Tr(null!=(t=null==e?void 0:e.data)?t:this.data,null!=(i=null==e?void 0:e.type)?i:this.type,null!=(r=null==e?void 0:e.timestamp)?r:this.timestamp,null!=(n=null==e?void 0:e.duration)?n:this.duration,null!=(s=null==e?void 0:e.sequenceNumber)?s:this.sequenceNumber,this.byteLength,null!=(a=null==e?void 0:e.sideData)?a:this.sideData)}}const vr=e=>{const t=me(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const n=Be(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;t<r;t++)s.push(Be(e.subarray(i,i+16))),i+=16}}const a=t.getUint32(i);return i+=4,{systemId:n,keyIds:s,data:e.slice(i,i+a)}},wr=(e,t)=>e.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i<e.length;i++)if(e[i]!==t[i])return!1;return!0})(e.data,t.data),Sr=e=>{let t=Cl(e);const i=Nl(e,4);let r=8;1===t&&(t=Rl(e),r=16);const n=t-r;return n<0?null:{name:i,totalSize:t,headerSize:r,contentSize:n}},Pr=e=>El(e)/65536,Ir=e=>El(e)/1073741824,xr=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=vl(e);if(t|=127&i,0===(128&i))break}return t},Cr=e=>{let t=Sl(e);return e.skip(2),t=Math.min(t,e.remainingLength),pe.decode(Tl(e,t))},Br=e=>{const t=Sr(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=Cl(e);e.skip(4);const r=Tl(e,t.contentSize-8);switch(i){case 1:return pe.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new It(r,"image/jpeg");case 14:return new It(r,"image/png");case 27:return new It(r,"image/bmp");default:return r}},Er=16,_r=new Uint32Array(256),Rr=new Uint32Array(256),Fr=new Uint32Array(256),Ar=new Uint32Array(256),Mr=new Uint32Array(256),Dr=new Uint32Array(256),Nr=new Uint32Array(10);let Or=!1;class Lr{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Er/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Er),this.out=new Uint8Array(Er),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){oe(16===e.byteLength),oe(16===t.byteLength),Or||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,a=1;s<256;s++)i[s]=a,t[a]=s,a=a^a<<1^(128&a?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let n=r^r<<1^r<<2^r<<3^r<<4;n=n>>>8^255&n^99,e[s]=n}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);_r[s]=t<<24|t<<16|t<<8|t,Dr[s]=i<<24|i<<16|i<<8|i;const n=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);Rr[s]=n,Fr[s]=n>>>8|n<<24,Ar[s]=n>>>16|n<<16,Mr[s]=n>>>24|n<<8}let n=1;for(let s=0;s<10;s++)Nr[s]=n<<24,n=n<<1^(128&n?283:0);Or=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let n=4;n<44;n+=4){const e=this.roundkey[n-1];this.roundkey[n]=this.roundkey[n-4]^4278190080&_r[e>>>16&255]^16711680&_r[e>>>8&255]^65280&_r[e>>>0&255]^255&_r[e>>>24&255]^Nr[n/4-1],this.roundkey[n+1]=this.roundkey[n-3]^this.roundkey[n],this.roundkey[n+2]=this.roundkey[n-2]^this.roundkey[n+1],this.roundkey[n+3]=this.roundkey[n-1]^this.roundkey[n+2]}for(let n=0,s=40;n<s;n+=4,s-=4)for(let e=0;e<4;e++){const t=this.roundkey[n+e];this.roundkey[n+e]=this.roundkey[s+e],this.roundkey[s+e]=t}for(let n=4;n<40;n+=4)for(let e=0;e<4;e++){const t=this.roundkey[n+e];this.roundkey[n+e]=Rr[255&_r[t>>>24&255]]^Fr[255&_r[t>>>16&255]]^Ar[255&_r[t>>>8&255]]^Mr[255&_r[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const n=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),a=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let l,c,u,d;for(let g=1;g<10;g++){const n=4*g;l=Rr[e>>>24]^Fr[r>>>16&255]^Ar[i>>>8&255]^Mr[255&t]^this.roundkey[n],c=Rr[t>>>24]^Fr[e>>>16&255]^Ar[r>>>8&255]^Mr[255&i]^this.roundkey[n+1],u=Rr[i>>>24]^Fr[t>>>16&255]^Ar[e>>>8&255]^Mr[255&r]^this.roundkey[n+2],d=Rr[r>>>24]^Fr[i>>>16&255]^Ar[t>>>8&255]^Mr[255&e]^this.roundkey[n+3],e=l,t=c,i=u,r=d}const h=4278190080&Dr[e>>>24&255]^16711680&Dr[r>>>16&255]^65280&Dr[i>>>8&255]^255&Dr[t>>>0&255]^this.roundkey[40],f=4278190080&Dr[t>>>24&255]^16711680&Dr[e>>>16&255]^65280&Dr[r>>>8&255]^255&Dr[i>>>0&255]^this.roundkey[41],m=4278190080&Dr[i>>>24&255]^16711680&Dr[t>>>16&255]^65280&Dr[e>>>8&255]^255&Dr[r>>>0&255]^this.roundkey[42],p=4278190080&Dr[r>>>24&255]^16711680&Dr[i>>>16&255]^65280&Dr[t>>>8&255]^255&Dr[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,h^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=n,this.iv[1]=s,this.iv[2]=a,this.iv[3]=o}}class zr extends yr{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.tracks.map(e=>e.trackBacking)})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)}),hasAudio:this.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)}),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(ct(r)&&(r=yield r),!r)break;const n=e,s=Sr(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=Nl(r,4);this.isQuickTime="qt  "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(ct(e)&&(e=yield e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>n+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');yield this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=n+s.totalSize}if(!i&&this.input._initInput&&(yield this.copyMetadataFromInitInput(this.input._initInput)),t){oe(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);ct(e)&&(e=yield e),oe(e);const t=Cl(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(ct(e)&&(e=yield e),e){const t=Sr(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);ct(i)&&(i=yield i),i&&this.readContiguousBoxes(i)}}}}}))()}copyMetadataFromInitInput(e){return Y(this,null,function*(){const t=yield e._getDemuxer();if(t.constructor!==zr)throw new Error("Init input must match the input's format.");yield t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const e of t.tracks){const t={id:e.id,demuxer:this,trackBacking:null,disposition:e.disposition,timescale:e.timescale,durationInMediaTimescale:e.durationInMediaTimescale,durationInMovieTimescale:e.durationInMovieTimescale,rotation:e.rotation,internalCodecId:e.internalCodecId,name:e.name,languageCode:e.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:e.editListPreviousSegmentDurations,editListOffset:e.editListOffset,encryptionInfo:e.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:e.info};if(e.trackBacking)if(oe(t.info),"video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new qr(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new Wr(e),this.tracks.push(t)}}})}getSampleTableForTrack(e){var t,i;if(e.sampleTable)return e.sampleTable;const r={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=r,null===e.sampleTableByteOffset)return r;oe(this.moovSlice);const n=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(n),this.currentTrack=null;if("audio"===(null==(t=e.info)?void 0:t.type)&&e.info.codec&&Xi.includes(e.info.codec)&&0===r.sampleCompositionTimeOffsets.length){oe("audio"===(null==(i=e.info)?void 0:i.type));const t=ar(e.info.codec),n=[],s=[];for(let i=0;i<r.sampleToChunk.length;i++){const a=r.sampleToChunk[i],o=r.sampleToChunk[i+1],l=(o?o.startChunkIndex:r.chunkOffsets.length)-a.startChunkIndex;for(let i=0;i<l;i++){const o=a.startSampleIndex+i*a.samplesPerChunk,l=o+a.samplesPerChunk,c=Re(r.sampleTimingEntries,o,e=>e.startIndex),u=r.sampleTimingEntries[c],d=Re(r.sampleTimingEntries,l,e=>e.startIndex),h=r.sampleTimingEntries[d],f=u.startDecodeTimestamp+(o-u.startIndex)*u.delta,m=h.startDecodeTimestamp+(l-h.startIndex)*h.delta-f,p=ce(n);p&&p.delta===m?p.count++:n.push({startIndex:a.startChunkIndex+i,startDecodeTimestamp:f,count:1,delta:m});const g=a.samplesPerChunk*t.sampleSize*e.info.numberOfChannels;s.push(g)}a.startSampleIndex=a.startChunkIndex,a.samplesPerChunk=1}r.sampleTimingEntries=n,r.sampleSizes=s}if(r.sampleCompositionTimeOffsets.length>0){r.presentationTimestamps=[];for(const e of r.sampleTimingEntries)for(let t=0;t<e.count;t++)r.presentationTimestamps.push({presentationTimestamp:e.startDecodeTimestamp+t*e.delta,sampleIndex:e.startIndex+t});for(const e of r.sampleCompositionTimeOffsets)for(let t=0;t<e.count;t++){const i=e.startIndex+t,n=r.presentationTimestamps[i];n&&(n.presentationTimestamp+=e.offset)}r.presentationTimestamps.sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp),r.presentationTimestampIndexMap=Array(r.presentationTimestamps.length).fill(-1);for(let e=0;e<r.presentationTimestamps.length;e++)r.presentationTimestampIndexMap[r.presentationTimestamps[e].sampleIndex]=e}return r}readFragment(e){return Y(this,null,function*(){var t;if((null==(t=this.lastReadFragment)?void 0:t.moofOffset)===e)return this.lastReadFragment;let i=this.reader.requestSliceRange(e,8,16);ct(i)&&(i=yield i),oe(i);const r=Sr(i);oe("moof"===(null==r?void 0:r.name));let n=this.reader.requestSlice(e,r.totalSize);ct(n)&&(n=yield n),oe(n),this.traverseBox(n);const s=this.lastReadFragment;oe(s&&s.moofOffset===e);for(const[,e]of s.trackData){const t=e.track,{fragmentPositionCache:i}=t;if(!e.startTimestampIsFinal){const r=t.fragmentLookupTable.find(e=>e.moofOffset===s.moofOffset);if(r)Xr(e,r.timestamp);else{const t=Re(i,s.moofOffset-1,e=>e.moofOffset);if(-1!==t){const r=i[t];Xr(e,r.endTimestamp)}}e.startTimestampIsFinal=!0}const r=Re(i,e.startTimestamp,e=>e.startTimestamp);if(-1!==r&&i[r].moofOffset===s.moofOffset||i.splice(r+1,0,{moofOffset:s.moofOffset,startTimestamp:e.startTimestamp,endTimestamp:e.endTimestamp}),e.encryptionAuxInfo&&t.encryptionInfo){const i=yield Yr(this.reader,t.encryptionInfo,e.encryptionAuxInfo);for(let t=0;t<Math.min(e.samples.length,i.length);t++){const r=i[t];e.samples[t].encryption=r}}}return s})}readContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){if(!this.traverseBox(e))break}}*iterateContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){const t=e.filePos,i=Sr(e);if(!i)break;yield{boxInfo:i,slice:e},e.filePos=t+i.totalSize}}traverseBox(e){var t,i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F,A,M,D,N,O,L,z,U,q,W,j,K,X,$,G,Q,Y,J,Z,ee,te,ie;const re=e.filePos,ne=Sr(e);if(!ne)return!1;const se=e.filePos,ae=re+ne.totalSize;switch(ne.name){case"mdia":case"minf":case"dinf":case"mfra":case"edts":case"sinf":case"schi":case"wave":this.readContiguousBoxes(e.slice(se,ne.contentSize));break;case"mvhd":{const t=vl(e);e.skip(3),1===t?(e.skip(16),this.movieTimescale=Cl(e),this.movieDurationInTimescale=Rl(e)):(e.skip(8),this.movieTimescale=Cl(e),this.movieDurationInTimescale=Cl(e))}break;case"trak":{const t={id:-1,demuxer:this,trackBacking:null,disposition:V(H({},Ct),{primary:!1}),info:null,timescale:-1,durationInMovieTimescale:-1,durationInMediaTimescale:-1,rotation:0,internalCodecId:null,name:null,languageCode:We,sampleTableByteOffset:-1,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:0,editListOffset:0,encryptionInfo:null,encryptionAuxInfo:null,frmaCodecString:null};if(this.currentTrack=t,this.readContiguousBoxes(e.slice(se,ne.contentSize)),-1!==t.id&&-1!==t.timescale&&null!==t.info)if("video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new qr(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new Wr(e),this.tracks.push(t)}this.currentTrack=null}break;case"tkhd":{const t=this.currentTrack;if(!t)break;const i=vl(e),r=!!(1&Pl(e));if(t.disposition.default=r,0===i)e.skip(8),t.id=Cl(e),e.skip(4),t.durationInMovieTimescale=Cl(e);else{if(1!==i)throw new Error(`Incorrect track header version ${i}.`);e.skip(16),t.id=Cl(e),e.skip(4),t.durationInMovieTimescale=Rl(e)}e.skip(16);const n=[Pr(e),Pr(e),Ir(e),Pr(e),Pr(e),Ir(e),Pr(e),Pr(e),Ir(e)],s=le(Ve($r(n),90));oe(0===s||90===s||180===s||270===s),t.rotation=s}break;case"elst":{const t=this.currentTrack;if(!t)break;const i=vl(e);e.skip(3);let r=!1,n=0;const s=Cl(e);for(let a=0;a<s;a++){const s=1===i?Rl(e):Cl(e),a=1===i?Fl(e):El(e),o=Pr(e);if(r){Pt._warn("Unsupported edit list: multiple edits are not currently supported. Only using first edit.");break}if(-1!==a){if(1!==o){Pt._warn("Unsupported edit list entry: media rate must be 1.");break}t.editListPreviousSegmentDurations=n,t.editListOffset=a,r=!0}else n+=s}}break;case"mdhd":{const t=this.currentTrack;if(!t)break;const i=vl(e);e.skip(3),0===i?(e.skip(8),t.timescale=Cl(e),t.durationInMediaTimescale=Cl(e)):1===i&&(e.skip(16),t.timescale=Cl(e),t.durationInMediaTimescale=Rl(e));let r=Sl(e);if(r>0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;Ge(t.languageCode)||(t.languageCode=We)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=Nl(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:H({},Pe),avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=re,this.readContiguousBoxes(e.slice(se,ne.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=vl(e);e.skip(3);const r=Cl(e);for(let n=0;n<r;n++){const r=e.filePos,n=Sr(e);if(!n)break;t.internalCodecId=n.name;const s=n.name.toLowerCase();if("video"===t.info.type){e.skip(24),t.info.width=Sl(e),t.info.height=Sl(e),t.info.squarePixelWidth=t.info.width,t.info.squarePixelHeight=t.info.height,e.skip(50),t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const i="encv"===s?t.frmaCodecString:s;t.frmaCodecString=null,"avc1"===i||"avc3"===i?(t.info.codec="avc",t.info.avcType="avc1"===i?1:3):"hvc1"===i||"hev1"===i?t.info.codec="hevc":"vp08"===i?t.info.codec="vp8":"vp09"===i?t.info.codec="vp9":"av01"===i?t.info.codec="av1":Zi.includes(s)?(t.info.codec="prores",t.info.proresFormat=s):null===i?Pt._warn("Unknown encrypted video codec due to missing frma box."):Pt._warn(`Unsupported video codec (sample entry type '${n.name}').`)}else{e.skip(8);const a=Sl(e);e.skip(6);let o=Sl(e),l=Sl(e);e.skip(4);let c=Cl(e)/65536,u=null;0===i&&a>0&&(1===a?(e.skip(4),l=8*Cl(e),e.skip(8)):2===a&&(e.skip(4),c=Dl(e),o=Cl(e),e.skip(4),l=Cl(e),u=Cl(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=c,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const d="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===d);else if("opus"===d)t.info.codec="opus",t.info.sampleRate=nr;else if("flac"===d)t.info.codec="flac";else if("ulaw"===d)t.info.codec="ulaw";else if("alaw"===d)t.info.codec="alaw";else if("ac-3"===d)t.info.codec="ac3";else if("ec-3"===d)t.info.codec="eac3";else if(er.includes(d))t.info.codec="dts",t.info.dtsFormat=d;else if("twos"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(Pt._warn(`Unsupported sample size ${l} for codec 'twos'.`),t.info.codec=null);else if("sowt"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec="pcm-s16":(Pt._warn(`Unsupported sample size ${l} for codec 'sowt'.`),t.info.codec=null);else if("raw "===d)t.info.codec="pcm-u8";else if("in24"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(Pt._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(Pt._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(Pt._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(Pt._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=l+7>>3,i=Boolean(1&u),r=Boolean(2&u),n=4&u?-1:0;l>0&&l<=64&&(i?32===l&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):n&1<<e-1?1===e?t.info.codec="pcm-s8":2===e?t.info.codec=r?"pcm-s16be":"pcm-s16":3===e?t.info.codec=r?"pcm-s24be":"pcm-s24":4===e&&(t.info.codec=r?"pcm-s32be":"pcm-s32"):1===e&&(t.info.codec="pcm-u8")),null===t.info.codec&&Pt._warn("Unsupported PCM format.")}else null===d?Pt._warn("Unknown encrypted audio codec due to missing frma box."):Pt._warn(`Unsupported audio codec (sample entry type '${n.name}').`)}e.filePos=r+n.totalSize}}break;case"frma":{const t=this.currentTrack;if(!t)break;const i=Nl(e,4).toLowerCase();t.frmaCodecString=i}break;case"schm":{const t=this.currentTrack;if(!t)break;e.skip(4);const i=Nl(e,4);"cenc"===i||"cens"===i||"cbcs"===i?t.encryptionInfo={scheme:i,defaultKid:null,defaultIsProtected:null,defaultPerSampleIvSize:null,defaultConstantIv:null,defaultCryptByteBlock:null,defaultSkipByteBlock:null}:Pt._warn(`Unsupported encryption scheme '${i}'.`)}break;case"tenc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=vl(e);e.skip(3),e.skip(1);const r=vl(e);if(i>0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==vl(e),t.encryptionInfo.defaultPerSampleIvSize=vl(e),t.encryptionInfo.defaultKid=Be(Tl(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=vl(e),r=new Uint8Array(16);r.set(Tl(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(oe(t.info),0===ne.contentSize)break;t.info.codecDescription=Tl(e,ne.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(oe(t.info),0===ne.contentSize)break;t.info.codecDescription=Tl(e,ne.contentSize)}break;case"vpcC":{const i=this.currentTrack;if(!i)break;oe("video"===(null==(t=i.info)?void 0:t.type)),e.skip(4);const r=vl(e),n=vl(e),s=vl(e),a=s>>4,o=s>>1&7,l=1&s,c=vl(e),u=vl(e),d=vl(e);i.info.vp9CodecInfo={profile:r,level:n,bitDepth:a,chromaSubsampling:o,videoFullRangeFlag:l,colourPrimaries:c,transferCharacteristics:u,matrixCoefficients:d}}break;case"av1C":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(i=t.info)?void 0:i.type)),e.skip(1);const o=vl(e),l=o>>5,c=31&o,u=vl(e),d=u>>7,h=u>>6&1,f=u>>4&1,m=u>>3&1,p=u>>2&1,g=3&u,k=2===l&&h?u>>5&1?12:10:h?10:8;e.skip(1);const y=Tl(e,ne.contentSize-4),b=yi(y);t.info.av1CodecInfo={profile:l,level:c,tier:d,bitDepth:k,monochrome:f,chromaSubsamplingX:m,chromaSubsamplingY:p,chromaSamplePosition:g,videoFullRangeFlag:null!=(r=null==b?void 0:b.videoFullRangeFlag)?r:0,colourPrimaries:null!=(n=null==b?void 0:b.colourPrimaries)?n:2,transferCharacteristics:null!=(s=null==b?void 0:b.transferCharacteristics)?s:2,matrixCoefficients:null!=(a=null==b?void 0:b.matrixCoefficients)?a:2}}break;case"colr":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(o=t.info)?void 0:o.type));const i=Nl(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=Sl(e),n=Sl(e),s=Sl(e);let a;"nclx"===i&&(a=Boolean(128&vl(e))),t.info.colorSpace={primaries:ye[r],transfer:Te[n],matrix:we[s],fullRange:a}}break;case"pasp":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(l=t.info)?void 0:l.type));const i=Cl(e),r=Cl(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==(null==(c=t.info)?void 0:c.type))break;e.skip(4);oe(3===vl(e)),xr(e),e.skip(2);const i=vl(e),r=0!==(64&i),n=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=vl(e);e.skip(t)}n&&e.skip(2);oe(4===vl(e));const s=xr(e),a=e.filePos,o=vl(e);if(64===o||103===o?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===o,objectType:null}):105===o||107===o?t.info.codec="mp3":221===o?t.info.codec="vorbis":169===o?t.info.codec="dts":Pt._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-a){oe(5===vl(e));const i=xr(e);if(t.info.codecDescription=Tl(e,i),"aac"===t.info.codec){const e=Rt(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(u=t.info)?void 0:u.type)),t.info.pcmLittleEndian=!!(255&Sl(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(d=t.info)?void 0:d.type)),e.skip(4);const i=vl(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=vl(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(h=t.info)?void 0:h.type)),e.skip(1);const i=vl(e),r=Sl(e),n=Cl(e),s=Il(e),a=vl(e);let o;o=0!==a?Tl(e,2+i):new Uint8Array(0);const l=new Uint8Array(19+o.byteLength),c=new DataView(l.buffer);c.setUint32(0,1332770163,!1),c.setUint32(4,1214603620,!1),c.setUint8(8,1),c.setUint8(9,i),c.setUint16(10,r,!0),c.setUint32(12,n,!0),c.setInt16(16,s,!0),c.setUint8(18,a),l.set(o,19),t.info.codecDescription=l,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(f=t.info)?void 0:f.type)),e.skip(4);const i=127,r=128,n=e.filePos;for(;e.filePos<ae;){const n=vl(e),s=Pl(e);if((n&i)===Si.STREAMINFO){e.skip(10);const i=Cl(e),r=i>>>12,n=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=n,e.skip(20)}else e.skip(s);if(n&r)break}const s=e.filePos;e.filePos=n;const a=Tl(e,s-n),o=new Uint8Array(4+a.byteLength);new DataView(o.buffer).setUint32(0,1716281667,!1),o.set(a,4),t.info.codecDescription=o}break;case"dac3":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(m=t.info)?void 0:m.type));const i=Tl(e,3),r=new Bt(i),n=r.readBits(2);r.skipBits(8);const s=r.readBits(3),a=r.readBits(1);n<3&&(t.info.sampleRate=Mt[n]),t.info.numberOfChannels=xi[s]+a}break;case"dec3":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(p=t.info)?void 0:p.type));const i=(e=>{if(e.length<2)return null;const t=new Bt(e),i=t.readBits(13),r=t.readBits(3),n=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),a=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let l=0;o>0?l=t.readBits(9):t.skipBits(1),n.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:a,numDepSub:o,chanLoc:l})}return 0===n.length?null:{dataRate:i,substreams:n}})(Tl(e,ne.contentSize));if(!i){Pt._warn("Invalid dec3 box contents, ignoring.");break}const r=Ri(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=Fi(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(g=t.info)?void 0:g.type));const i=(e=>{if(e.length<20)return null;const t=me(e),i=t.getUint32(0);if(0===i)return null;const r=new Bt(e);r.seekToByte(13);const n=r.readBits(2);r.skipBits(5);const s=r.readBits(1),a=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let l=null;return 0!==o?l=ji(o):a<Ni.length&&(l=Ni[a]+s),{sampleRate:i,maxBitrate:t.getUint32(4),avgBitrate:t.getUint32(8),pcmSampleDepth:e[12],sampleCount:Ui[n],channelLayout:o,numberOfChannels:l}})(Tl(e,Math.min(ne.contentSize,20)));if(!i){Pt._warn("Invalid ddts box contents, ignoring.");break}t.info.sampleRate=i.sampleRate,null!==i.numberOfChannels&&(t.info.numberOfChannels=i.numberOfChannels)}break;case"stts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);let r=0,n=0;for(let s=0;s<i;s++){const i=Cl(e),s=Cl(e);t.sampleTable.sampleTimingEntries.push({startIndex:r,startDecodeTimestamp:n,count:i,delta:s}),r+=i,n+=i*s}}break;case"ctts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);let r=0;for(let n=0;n<i;n++){const i=Cl(e),n=El(e);t.sampleTable.sampleCompositionTimeOffsets.push({startIndex:r,count:i,offset:n}),r+=i}}break;case"stsz":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e),r=Cl(e);if(0===i)for(let n=0;n<r;n++){const i=Cl(e);t.sampleTable.sampleSizes.push(i)}else t.sampleTable.sampleSizes.push(i)}break;case"stz2":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),e.skip(3);const i=vl(e),r=Cl(e),n=Tl(e,Math.ceil(r*i/8)),s=new Bt(n);for(let e=0;e<r;e++){const e=s.readBits(i);t.sampleTable.sampleSizes.push(e)}}break;case"stss":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),t.sampleTable.keySampleIndices=[];const i=Cl(e);for(let r=0;r<i;r++){const i=Cl(e)-1;t.sampleTable.keySampleIndices.push(i)}0!==t.sampleTable.keySampleIndices[0]&&t.sampleTable.keySampleIndices.unshift(0)}break;case"stsc":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let n=0;n<i;n++){const i=Cl(e)-1,r=Cl(e),n=Cl(e);t.sampleTable.sampleToChunk.push({startSampleIndex:-1,startChunkIndex:i,samplesPerChunk:r,sampleDescriptionIndex:n})}let r=0;for(let e=0;e<t.sampleTable.sampleToChunk.length;e++)if(t.sampleTable.sampleToChunk[e].startSampleIndex=r,e<t.sampleTable.sampleToChunk.length-1){r+=(t.sampleTable.sampleToChunk[e+1].startChunkIndex-t.sampleTable.sampleToChunk[e].startChunkIndex)*t.sampleTable.sampleToChunk[e].samplesPerChunk}}break;case"stco":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let r=0;r<i;r++){const i=Cl(e);t.sampleTable.chunkOffsets.push(i)}}break;case"co64":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let r=0;r<i;r++){const i=Rl(e);t.sampleTable.chunkOffsets.push(i)}}break;case"mvex":this.isFragmented=!0,this.readContiguousBoxes(e.slice(se,ne.contentSize));break;case"mehd":{const t=vl(e);e.skip(3);const i=1===t?Rl(e):Cl(e);this.movieDurationInTimescale=i}break;case"trex":{e.skip(4);const t=Cl(e),i=Cl(e),r=Cl(e),n=Cl(e),s=Cl(e);this.fragmentTrackDefaults.push({trackId:t,defaultSampleDescriptionIndex:i,defaultSampleDuration:r,defaultSampleSize:n,defaultSampleFlags:s})}break;case"tfra":{const t=vl(e);e.skip(3);const i=Cl(e),r=this.tracks.find(e=>e.id===i);if(!r)break;const n=Cl(e),s=(12&n)>>2,a=3&n,o=[vl,Sl,Pl,Cl],l=o[(48&n)>>4],c=o[s],u=o[a],d=Cl(e);for(let h=0;h<d;h++){const i=1===t?Rl(e):Cl(e),n=1===t?Rl(e):Cl(e);l(e),c(e),u(e),r.fragmentLookupTable.push({timestamp:i,moofOffset:n})}r.fragmentLookupTable.sort((e,t)=>e.timestamp-t.timestamp);for(let e=0;e<r.fragmentLookupTable.length-1;e++){const t=r.fragmentLookupTable[e],i=r.fragmentLookupTable[e+1];t.timestamp===i.timestamp&&(r.fragmentLookupTable.splice(e+1,1),e--)}}break;case"moof":this.currentFragment={moofOffset:re,moofSize:ne.totalSize,implicitBaseDataOffset:re,trackData:new Map,psshBoxes:[]},this.readContiguousBoxes(e.slice(se,ne.contentSize)),this.lastReadFragment=this.currentFragment,this.currentFragment=null;break;case"traf":if(oe(this.currentFragment),this.readContiguousBoxes(e.slice(se,ne.contentSize)),this.currentTrack){const e=this.currentFragment.trackData.get(this.currentTrack.id);e:if(e){if(0===e.samples.length){this.currentFragment.trackData.delete(this.currentTrack.id);break e}e.presentationTimestamps=e.samples.map((e,t)=>({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let n=0;n<e.presentationTimestamps.length;n++){const t=e.presentationTimestamps[n],i=e.samples[t.sampleIndex];if(null===e.firstKeyFrameTimestamp&&i.isKeyFrame&&(e.firstKeyFrameTimestamp=i.presentationTimestamp),n<e.presentationTimestamps.length-1){const r=e.presentationTimestamps[n+1].presentationTimestamp-t.presentationTimestamp;i.duration=r}}const t=e.samples[e.presentationTimestamps[0].sampleIndex],i=e.samples[ce(e.presentationTimestamps).sampleIndex];e.startTimestamp=t.presentationTimestamp,e.endTimestamp=i.presentationTimestamp+i.duration;const{currentFragmentState:r}=this.currentTrack;oe(r),null!==r.startTimestamp&&(Xr(e,r.startTimestamp),e.startTimestampIsFinal=!0),r.encryptionAuxInfo&&!e.samples[0].encryption&&(e.encryptionAuxInfo=r.encryptionAuxInfo)}this.currentTrack.currentFragmentState=null,this.currentTrack=null}break;case"pssh":{if(null==(k=this.input._formatOptions.isobmff)?void 0:k._suppressPsshParsing)break;const t=vr(Tl(e,ne.contentSize));this.currentFragment?this.currentFragment.psshBoxes.push(t):this.currentTrack||this.psshBoxes.push(t)}break;case"tfhd":{oe(this.currentFragment),e.skip(1);const t=Pl(e),i=Boolean(1&t),r=Boolean(2&t),n=Boolean(8&t),s=Boolean(16&t),a=Boolean(32&t),o=Boolean(65536&t),l=Boolean(131072&t),c=Cl(e),u=this.tracks.find(e=>e.id===c);if(!u)break;const d=this.fragmentTrackDefaults.find(e=>e.trackId===c);this.currentTrack=u,u.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:null!=(y=null==d?void 0:d.defaultSampleDescriptionIndex)?y:null,defaultSampleDuration:null!=(b=null==d?void 0:d.defaultSampleDuration)?b:null,defaultSampleSize:null!=(T=null==d?void 0:d.defaultSampleSize)?T:null,defaultSampleFlags:null!=(v=null==d?void 0:d.defaultSampleFlags)?v:null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=Rl(e):l&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=Cl(e)),n&&(u.currentFragmentState.defaultSampleDuration=Cl(e)),s&&(u.currentFragmentState.defaultSampleSize=Cl(e)),a&&(u.currentFragmentState.defaultSampleFlags=Cl(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;oe(t.currentFragmentState);const i=vl(e);e.skip(3);const r=0===i?Cl(e):Rl(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;oe(this.currentFragment),oe(t.currentFragmentState);const i=vl(e),r=Pl(e),n=Boolean(1&r),s=Boolean(4&r),a=Boolean(256&r),o=Boolean(512&r),l=Boolean(1024&r),c=Boolean(2048&r),u=Cl(e);let d=null;n&&(d=El(e));let h,f=null;s&&(f=Cl(e)),this.currentFragment.trackData.has(t.id)?(h=this.currentFragment.trackData.get(t.id),null!==d&&(h.currentOffset=t.currentFragmentState.baseDataOffset+d)):(h={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(null!=d?d:0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,h));for(let m=0;m<u;m++){let r,n,s;a?r=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleDuration),r=t.currentFragmentState.defaultSampleDuration),o?n=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleSize),n=t.currentFragmentState.defaultSampleSize),l?s=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleFlags),s=t.currentFragmentState.defaultSampleFlags),0===m&&null!==f&&(s=f);let u=0;c&&(u=0===i?Cl(e):El(e));const d=!(65536&s);h.samples.push({presentationTimestamp:h.currentTimestamp+u,duration:r,byteOffset:h.currentOffset,byteSize:n,isKeyFrame:d,encryption:null}),h.currentOffset+=n,h.currentTimestamp+=r}this.currentFragment.implicitBaseDataOffset=h.currentOffset}break;case"saiz":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;e.skip(1);if(1&Pl(e)){const i=Nl(e,4),r=Cl(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const i=vl(e),r=Cl(e);let n=null;0===i&&r>0&&(n=Tl(e,r));const s=Qr(t);s.defaultSampleInfoSize=i,s.sampleSizes=n,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=vl(e);if(1&Pl(e)){const i=Nl(e,4),r=Cl(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=Cl(e);if(0===r)break;r>1&&Pt._warn("Multiple saio entries are not supported; using the first offset only.");let n=0===i?Cl(e):Number(Rl(e));this.currentFragment&&(n+=this.currentFragment.moofOffset);Qr(t).offset=n}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;oe(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=Pl(e),n=Boolean(2&r),s=Cl(e),a=t.encryptionInfo.defaultPerSampleIvSize;oe(null!==a);for(let o=0;o<Math.min(s,i.samples.length);o++){const r=new Uint8Array(16);a>0?r.set(Tl(e,a),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(n){const t=Sl(e);s=[];for(let i=0;i<t;i++){const t=Sl(e),i=Cl(e);s.push({clearLen:t,protectedLen:i})}}i.samples[o].encryption={iv:r,subsamples:s}}}break;case"udta":{const t=this.iterateContiguousBoxes(e.slice(se,ne.contentSize));for(const{boxInfo:e,slice:i}of t){if("meta"!==e.name&&!this.currentTrack){const t=i.filePos;null!=(w=this.metadataTags).raw||(w.raw={}),"\xa9"===e.name[0]?null!=(S=this.metadataTags.raw)[P=e.name]||(S[P]=Cr(i)):null!=(I=this.metadataTags.raw)[x=e.name]||(I[x]=Tl(i,e.contentSize)),i.filePos=t}switch(e.name){case"meta":i.skip(-e.headerSize),this.traverseBox(i);break;case"\xa9nam":case"name":this.currentTrack?this.currentTrack.name=pe.decode(Tl(i,e.contentSize)):null!=(C=this.metadataTags).title||(C.title=Cr(i));break;case"\xa9des":this.currentTrack||null!=(B=this.metadataTags).description||(B.description=Cr(i));break;case"\xa9ART":this.currentTrack||null!=(E=this.metadataTags).artist||(E.artist=Cr(i));break;case"\xa9alb":this.currentTrack||null!=(_=this.metadataTags).album||(_.album=Cr(i));break;case"albr":this.currentTrack||null!=(R=this.metadataTags).albumArtist||(R.albumArtist=Cr(i));break;case"\xa9gen":this.currentTrack||null!=(F=this.metadataTags).genre||(F.genre=Cr(i));break;case"\xa9day":if(!this.currentTrack){const e=new Date(Cr(i));Number.isNaN(e.getTime())||null!=(A=this.metadataTags).date||(A.date=e)}break;case"\xa9cmt":this.currentTrack||null!=(M=this.metadataTags).comment||(M.comment=Cr(i));break;case"\xa9lyr":this.currentTrack||null!=(D=this.metadataTags).lyrics||(D.lyrics=Cr(i))}}}break;case"meta":{if(this.currentTrack)break;const t=0!==Cl(e);this.currentMetadataKeys=new Map,t?this.readContiguousBoxes(e.slice(se,ne.contentSize)):this.readContiguousBoxes(e.slice(se+4,ne.contentSize-4)),this.currentMetadataKeys=null}break;case"keys":{if(!this.currentMetadataKeys)break;e.skip(4);const t=Cl(e);for(let i=0;i<t;i++){const t=Cl(e);e.skip(4);const r=pe.decode(Tl(e,t-8));this.currentMetadataKeys.set(i+1,r)}}break;case"ilst":{if(!this.currentMetadataKeys)break;const t=this.iterateContiguousBoxes(e.slice(se,ne.contentSize));for(const{boxInfo:e,slice:i}of t){let t=e.name;const r=(t.charCodeAt(0)<<24)+(t.charCodeAt(1)<<16)+(t.charCodeAt(2)<<8)+t.charCodeAt(3);this.currentMetadataKeys.has(r)&&(t=this.currentMetadataKeys.get(r));const n=Br(i);switch(null!=(N=this.metadataTags).raw||(N.raw={}),null!=(O=this.metadataTags.raw)[t]||(O[t]=n),t){case"\xa9nam":case"titl":case"com.apple.quicktime.title":case"title":"string"===typeof n&&(null!=(L=this.metadataTags).title||(L.title=n));break;case"\xa9des":case"desc":case"dscp":case"com.apple.quicktime.description":case"description":"string"===typeof n&&(null!=(z=this.metadataTags).description||(z.description=n));break;case"\xa9ART":case"com.apple.quicktime.artist":case"artist":"string"===typeof n&&(null!=(U=this.metadataTags).artist||(U.artist=n));break;case"\xa9alb":case"albm":case"com.apple.quicktime.album":case"album":"string"===typeof n&&(null!=(q=this.metadataTags).album||(q.album=n));break;case"aART":case"album_artist":"string"===typeof n&&(null!=(W=this.metadataTags).albumArtist||(W.albumArtist=n));break;case"\xa9cmt":case"com.apple.quicktime.comment":case"comment":"string"===typeof n&&(null!=(j=this.metadataTags).comment||(j.comment=n));break;case"\xa9gen":case"gnre":case"com.apple.quicktime.genre":case"genre":"string"===typeof n&&(null!=(K=this.metadataTags).genre||(K.genre=n));break;case"\xa9lyr":case"lyrics":"string"===typeof n&&(null!=(X=this.metadataTags).lyrics||(X.lyrics=n));break;case"\xa9day":case"rldt":case"com.apple.quicktime.creationdate":case"date":if("string"===typeof n){const e=new Date(n);Number.isNaN(e.getTime())||null!=($=this.metadataTags).date||($.date=e)}break;case"covr":case"com.apple.quicktime.artwork":n instanceof It?(null!=(G=this.metadataTags).images||(G.images=[]),this.metadataTags.images.push({data:n.data,kind:"coverFront",mimeType:n.mimeType})):n instanceof Uint8Array&&(null!=(Q=this.metadataTags).images||(Q.images=[]),this.metadataTags.images.push({data:n,kind:"coverFront",mimeType:"image/*"}));break;case"track":if("string"===typeof n){const e=n.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=(Y=this.metadataTags).trackNumber||(Y.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(J=this.metadataTags).tracksTotal||(J.tracksTotal=i))}break;case"trkn":if(n instanceof Uint8Array&&n.length>=6){const e=me(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(Z=this.metadataTags).trackNumber||(Z.trackNumber=t)),i>0&&(null!=(ee=this.metadataTags).tracksTotal||(ee.tracksTotal=i))}break;case"disc":case"disk":if(n instanceof Uint8Array&&n.length>=6){const e=me(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(te=this.metadataTags).discNumber||(te.discNumber=t)),i>0&&(null!=(ie=this.metadataTags).discsTotal||(ie.discsTotal=i))}}}}}return e.filePos=ae,!0}}class Ur{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){var e;const t=this.internalTrack;if(t.durationInMediaTimescale<=0)return null;oe(t.trackBacking);const i=yield t.trackBacking.getFirstPacket({metadataOnly:!0});return(null!=(e=null==i?void 0:i.timestamp)?e:0)+t.durationInMediaTimescale/t.timescale})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getFirstPacket(e){return Y(this,null,function*(){const t=yield this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)})}mapTimestampIntoTimescale(e){return He(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}getPacket(e,t){return Y(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=Hr(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return Gr(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=Re(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.packetToSampleIndex.get(e);if(void 0!==i)return this.fetchPacketForSampleIndex(i+1,t);const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1<t.samples.length)return{sampleIndex:r.sampleIndex+1,correctSampleFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{sampleIndex:0,correctSampleFound:!0}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}getKeyPacket(e,t){return Y(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=Vr(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return Gr(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=Ne(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s})}getNextKeyPacket(e,t){return Y(this,null,function*(){const i=this.packetToSampleIndex.get(e);if(void 0!==i){const e=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=Kr(e,i);return this.fetchPacketForSampleIndex(r,t)}const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return oe(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}fetchPacketForSampleIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=jr(i,e);if(!r)return null;let n;if(t.metadataOnly)n=br;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(ct(t)&&(t=yield t),!t)return null;if(n=Tl(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=yield Yr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);e<i.length&&(t=i[e])}null!=t||(t=Jr(this.internalTrack.encryptionInfo)),t&&(n=yield Zr(this.internalTrack,t,n,null))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,a=r.duration/this.internalTrack.timescale,o=new Tr(n,r.isKeyFrame?"key":"delta",s,a,e,r.sampleSize);return this.packetToSampleIndex.set(o,e),o})}fetchPacketInFragment(e,t,i){return Y(this,null,function*(){var r;if(-1===t)return null;const n=e.trackData.get(this.internalTrack.id).samples[t];let s;if(oe(n),i.metadataOnly)s=br;else{let t=this.internalTrack.demuxer.reader.requestSlice(n.byteOffset,n.byteSize);if(ct(t)&&(t=yield t),!t)return null;if(s=Tl(t,n.byteSize),this.internalTrack.encryptionInfo){const t=null!=(r=n.encryption)?r:Jr(this.internalTrack.encryptionInfo);t&&(s=yield Zr(this.internalTrack,t,s,e))}}const a=(n.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,o=n.duration/this.internalTrack.timescale,l=new Tr(s,n.isKeyFrame?"key":"delta",a,o,e.moofOffset+t,n.byteSize);return this.packetToFragmentLocation.set(l,{fragment:e,sampleIndex:t}),l})}performFragmentedLookup(e,t,i,r,n){return Y(this,null,function*(){var s,a,o;const l=this.internalTrack.demuxer;let c=null,u=null,d=-1;if(e){const{sampleIndex:i,correctSampleFound:r}=t(e);if(r)return this.fetchPacketInFragment(e,i,n);-1!==i&&(u=e,d=i)}const h=Re(this.internalTrack.fragmentLookupTable,i,e=>e.timestamp),f=-1!==h?this.internalTrack.fragmentLookupTable[h]:null,m=Re(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),p=-1!==m?this.internalTrack.fragmentPositionCache[m]:null,g=Math.max(null!=(s=null==f?void 0:f.moofOffset)?s:0,null!=(a=null==p?void 0:p.moofOffset)?a:0)||null;let k;for(e?null===g||e.moofOffset>=g?(k=e.moofOffset+e.moofSize,c=e):k=g:k=null!=g?g:0;;){if(c){const e=c.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=l.reader.requestSliceRange(k,8,16);if(ct(e)&&(e=yield e),!e)break;const i=k,s=Sr(e);if(!s)break;if("moof"===s.name){c=yield l.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(c);if(r)return this.fetchPacketInFragment(c,e,n);-1!==e&&(u=c,d=e)}k=i+s.totalSize}if(f&&(!u||u.moofOffset<f.moofOffset)){const e=this.internalTrack.fragmentLookupTable[h-1];oe(!e||e.timestamp<f.timestamp);const i=null!=(o=null==e?void 0:e.timestamp)?o:-1/0;return this.performFragmentedLookup(null,t,i,r,n)}return u?this.fetchPacketInFragment(u,d,n):null})}}class qr extends Ur{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.rotation}getColorSpace(){return Y(this,null,function*(){var e,t,i,r;const n=yield this.getDecoderConfig();return n?{primaries:null==(e=n.colorSpace)?void 0:e.primaries,transfer:null==(t=n.colorSpace)?void 0:t.transfer,matrix:null==(i=n.colorSpace)?void 0:i.matrix,fullRange:null==(r=n.colorSpace)?void 0:r.fullRange}:this.internalTrack.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)})}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e,t,i,r,n,s,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=yield this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&bi(e.data)}}else{const e=yield this.getFirstPacket({}),t=e&&yi(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const t=yield this.getFirstPacket({}),i=t&&gi(t.data);i&&(this.internalTrack.info.vp9CodecInfo=V(H({},null!=(e=this.internalTrack.info.vp9CodecInfo)?e:i),{videoFullRangeFlag:i.videoFullRangeFlag,colourPrimaries:i.colourPrimaries,transferCharacteristics:i.transferCharacteristics,matrixCoefficients:i.matrixCoefficients}))}else{const e=yield this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&ni(e.data)}else{const e=yield this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&$t(e.data)}if(!Se(this.internalTrack.info.colorSpace)){const e=ir(this.internalTrack.info);null!=(t=this.internalTrack.info.colorSpace).primaries||(t.primaries=e.primaries),null!=(i=this.internalTrack.info.colorSpace).transfer||(i.transfer=e.transfer),null!=(r=this.internalTrack.info.colorSpace).matrix||(r.matrix=e.matrix),null!=(n=this.internalTrack.info.colorSpace).fullRange||(n.fullRange=e.fullRange)}const o={codec:tr(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(s=this.internalTrack.info.codecDescription)?s:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class Wr extends Ur{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Wi(e.data)}return{codec:rr(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const Hr=(e,t)=>{if(e.presentationTimestamps){const i=Re(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=Re(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},Vr=(e,t)=>{var i;if(!e.keySampleIndices)return Hr(e,t);if(e.presentationTimestamps){const i=Re(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==_e(e.keySampleIndices,i,e=>e))return i}return-1}{const r=Hr(e,t),n=Re(e.keySampleIndices,r,e=>e);return null!=(i=e.keySampleIndices[n])?i:-1}},jr=(e,t)=>{const i=Re(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let n=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=Re(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),a=e.sampleCompositionTimeOffsets[s];a&&t-a.startIndex<a.count&&(n+=a.offset);const o=e.sampleSizes[Math.min(t,e.sampleSizes.length-1)],l=Re(e.sampleToChunk,t,e=>e.startSampleIndex),c=e.sampleToChunk[l];oe(c);const u=c.startChunkIndex+Math.floor((t-c.startSampleIndex)/c.samplesPerChunk),d=e.chunkOffsets[u],h=c.startSampleIndex+(u-c.startChunkIndex)*c.samplesPerChunk;let f=0,m=d;if(1===e.sampleSizes.length)m+=o*(t-h),f+=o*c.samplesPerChunk;else for(let g=h;g<h+c.samplesPerChunk;g++){const i=e.sampleSizes[g];g<t&&(m+=i),f+=i}let p=r.delta;if(e.presentationTimestamps){const i=e.presentationTimestampIndexMap[t];if(oe(void 0!==i),i<e.presentationTimestamps.length-1){p=e.presentationTimestamps[i+1].presentationTimestamp-n}}return{presentationTimestamp:n,duration:p,sampleOffset:m,sampleSize:o,chunkOffset:d,chunkSize:f,isKeyFrame:!e.keySampleIndices||-1!==_e(e.keySampleIndices,t,e=>e)}},Kr=(e,t)=>{var i;if(!e.keySampleIndices)return t+1;const r=Re(e.keySampleIndices,t,e=>e);return null!=(i=e.keySampleIndices[r+1])?i:-1},Xr=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},$r=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},Gr=e=>0===e.sampleSizes.length,Qr=e=>{var t,i,r;return e.currentFragmentState?null!=(i=(t=e.currentFragmentState).encryptionAuxInfo)?i:t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}:null!=(r=e.encryptionAuxInfo)?r:e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}},Yr=(e,t,i)=>Y(null,null,function*(){if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{oe(i.sampleSizes);for(let e=0;e<i.sampleCount;e++)r+=i.sampleSizes[e]}let n=e.requestSlice(i.offset,r);if(ct(n)&&(n=yield n),!n)throw new Error("Failed to read auxiliary encryption info.");const s=t.defaultPerSampleIvSize;oe(null!==s);const a=[];for(let e=0;e<i.sampleCount;e++){const r=i.defaultSampleInfoSize>0?i.defaultSampleInfoSize:i.sampleSizes[e],o=new Uint8Array(16);s>0?o.set(Tl(n,s),0):o.set(t.defaultConstantIv,0);let l=null;if(r>s){const e=Sl(n);l=[];for(let t=0;t<e;t++){const e=Sl(n),t=Cl(n);l.push({clearLen:e,protectedLen:t})}}a.push({iv:o,subsamples:l})}return i.resolved=a,a}),Jr=e=>e.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,Zr=(e,t,i,r)=>Y(null,null,function*(){var n;oe(e.encryptionInfo);const s=e.encryptionInfo;oe(null!==s.defaultKid);const a=s.defaultKid;let o;const l=e.demuxer.decryptionKeyCache.get(a);if(l)o=yield l;else{if(!(null==(n=e.demuxer.input._formatOptions.isobmff)?void 0:n.resolveKeyId))throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=Y(null,null,function*(){let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(a));for(let e=0;e<t.length-1;e++)for(let i=e+1;i<t.length;i++)wr(t[e],t[i])&&(t.splice(i,1),i--)}const i=yield e.demuxer.input._formatOptions.isobmff.resolveKeyId({keyId:a,psshBoxes:t});if(!("string"===typeof i&&32===i.length&&Ce.test(i)||i instanceof Uint8Array&&16===i.byteLength))throw new TypeError("resolveKeyId must return a 32-character hex string or a 16-byte Uint8Array containing the decryption key.");return i instanceof Uint8Array?i:(e=>{oe(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;i<e.length;i+=2)t[i/2]=parseInt(e.slice(i,i+2),16);return t})(i)});e.demuxer.decryptionKeyCache.set(a,t),o=yield t}return"cenc"===s.scheme||"cens"===s.scheme?en(o,s,t,i):tn(o,s,t,i)}),en=(e,t,i,r)=>Y(null,null,function*(){const n=new Uint8Array(16);n.set(i.iv,0);const s=yield crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),a=e=>Y(null,null,function*(){const t=yield crypto.subtle.decrypt({name:"AES-CTR",counter:n,length:64},s,e);return new Uint8Array(t)});if(!i.subsamples)return a(r);oe(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=rn(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let l=0;for(const e of o)for(const t of e.perSubsample)l+=t.length;const c=new Uint8Array(l);let u=0;for(const e of o)for(const t of e.perSubsample)c.set(r.subarray(t.offset,t.offset+t.length),u),u+=t.length;const d=yield a(c),h=new Uint8Array(r);let f=0;for(const e of o)for(const t of e.perSubsample)h.set(d.subarray(f,f+t.length),t.offset),f+=t.length;return h}),tn=(e,t,i,r)=>{const n=new Lr;n.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,a=t.defaultSkipByteBlock;if(oe(null!==s&&null!==a),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i<t;i++){const t=16*i;n.in.set(r.subarray(t,t+16)),n.decrypt(),e.set(n.out,t)}return e}if(0===s&&0===a)throw new Error("cbcs with subsamples requires pattern encryption.");const o=new Uint8Array(r),l=rn(i.subsamples,s,a),c=new DataView(i.iv.buffer,i.iv.byteOffset,16);for(const u of l){n.iv[0]=c.getUint32(0,!1),n.iv[1]=c.getUint32(4,!1),n.iv[2]=c.getUint32(8,!1),n.iv[3]=c.getUint32(12,!1);for(const e of u.perSubsample){const t=e.length/16;for(let i=0;i<t;i++){const t=e.offset+16*i;n.in.set(r.subarray(t,t+16)),n.decrypt(),o.set(n.out,t)}}}return o},rn=(e,t,i)=>{const r=[],n=0!==t||0!==i;let s=0;for(const a of e){s+=a.clearLen;const e=[];if(n){let r=a.protectedLen,n=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:n,length:s}),n+=s,r-=s;const a=Math.min(16*i,r);n+=a,r-=a}s+=a.protectedLen}else a.protectedLen>0&&e.push({offset:s,length:a.protectedLen}),s+=a.protectedLen;r.push({perSubsample:e})}return r};var nn,sn;(sn=nn||(nn={}))[sn.EBML=440786851]="EBML",sn[sn.EBMLVersion=17030]="EBMLVersion",sn[sn.EBMLReadVersion=17143]="EBMLReadVersion",sn[sn.EBMLMaxIDLength=17138]="EBMLMaxIDLength",sn[sn.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",sn[sn.DocType=17026]="DocType",sn[sn.DocTypeVersion=17031]="DocTypeVersion",sn[sn.DocTypeReadVersion=17029]="DocTypeReadVersion",sn[sn.Void=236]="Void",sn[sn.Segment=408125543]="Segment",sn[sn.SeekHead=290298740]="SeekHead",sn[sn.Seek=19899]="Seek",sn[sn.SeekID=21419]="SeekID",sn[sn.SeekPosition=21420]="SeekPosition",sn[sn.Duration=17545]="Duration",sn[sn.Info=357149030]="Info",sn[sn.TimestampScale=2807729]="TimestampScale",sn[sn.MuxingApp=19840]="MuxingApp",sn[sn.WritingApp=22337]="WritingApp",sn[sn.Tracks=374648427]="Tracks",sn[sn.TrackEntry=174]="TrackEntry",sn[sn.TrackNumber=215]="TrackNumber",sn[sn.TrackUID=29637]="TrackUID",sn[sn.TrackType=131]="TrackType",sn[sn.FlagEnabled=185]="FlagEnabled",sn[sn.FlagDefault=136]="FlagDefault",sn[sn.FlagForced=21930]="FlagForced",sn[sn.FlagOriginal=21934]="FlagOriginal",sn[sn.FlagHearingImpaired=21931]="FlagHearingImpaired",sn[sn.FlagVisualImpaired=21932]="FlagVisualImpaired",sn[sn.FlagCommentary=21935]="FlagCommentary",sn[sn.FlagLacing=156]="FlagLacing",sn[sn.Name=21358]="Name",sn[sn.Language=2274716]="Language",sn[sn.LanguageBCP47=2274717]="LanguageBCP47",sn[sn.CodecID=134]="CodecID",sn[sn.CodecPrivate=25506]="CodecPrivate",sn[sn.CodecDelay=22186]="CodecDelay",sn[sn.SeekPreRoll=22203]="SeekPreRoll",sn[sn.DefaultDuration=2352003]="DefaultDuration",sn[sn.Video=224]="Video",sn[sn.PixelWidth=176]="PixelWidth",sn[sn.PixelHeight=186]="PixelHeight",sn[sn.DisplayWidth=21680]="DisplayWidth",sn[sn.DisplayHeight=21690]="DisplayHeight",sn[sn.DisplayUnit=21682]="DisplayUnit",sn[sn.AlphaMode=21440]="AlphaMode",sn[sn.Audio=225]="Audio",sn[sn.SamplingFrequency=181]="SamplingFrequency",sn[sn.Channels=159]="Channels",sn[sn.BitDepth=25188]="BitDepth",sn[sn.SimpleBlock=163]="SimpleBlock",sn[sn.BlockGroup=160]="BlockGroup",sn[sn.Block=161]="Block",sn[sn.BlockAdditions=30113]="BlockAdditions",sn[sn.BlockMore=166]="BlockMore",sn[sn.BlockAdditional=165]="BlockAdditional",sn[sn.BlockAddID=238]="BlockAddID",sn[sn.BlockDuration=155]="BlockDuration",sn[sn.ReferenceBlock=251]="ReferenceBlock",sn[sn.Cluster=524531317]="Cluster",sn[sn.Timestamp=231]="Timestamp",sn[sn.Cues=475249515]="Cues",sn[sn.CuePoint=187]="CuePoint",sn[sn.CueTime=179]="CueTime",sn[sn.CueTrackPositions=183]="CueTrackPositions",sn[sn.CueTrack=247]="CueTrack",sn[sn.CueClusterPosition=241]="CueClusterPosition",sn[sn.Colour=21936]="Colour",sn[sn.MatrixCoefficients=21937]="MatrixCoefficients",sn[sn.TransferCharacteristics=21946]="TransferCharacteristics",sn[sn.Primaries=21947]="Primaries",sn[sn.Range=21945]="Range",sn[sn.Projection=30320]="Projection",sn[sn.ProjectionType=30321]="ProjectionType",sn[sn.ProjectionPoseRoll=30325]="ProjectionPoseRoll",sn[sn.Attachments=423732329]="Attachments",sn[sn.AttachedFile=24999]="AttachedFile",sn[sn.FileDescription=18046]="FileDescription",sn[sn.FileName=18030]="FileName",sn[sn.FileMediaType=18016]="FileMediaType",sn[sn.FileData=18012]="FileData",sn[sn.FileUID=18094]="FileUID",sn[sn.Chapters=272869232]="Chapters",sn[sn.Tags=307544935]="Tags",sn[sn.Tag=29555]="Tag",sn[sn.Targets=25536]="Targets",sn[sn.TargetTypeValue=26826]="TargetTypeValue",sn[sn.TargetType=25546]="TargetType",sn[sn.TagTrackUID=25541]="TagTrackUID",sn[sn.TagEditionUID=25545]="TagEditionUID",sn[sn.TagChapterUID=25540]="TagChapterUID",sn[sn.TagAttachmentUID=25542]="TagAttachmentUID",sn[sn.SimpleTag=26568]="SimpleTag",sn[sn.TagName=17827]="TagName",sn[sn.TagLanguage=17530]="TagLanguage",sn[sn.TagString=17543]="TagString",sn[sn.TagBinary=17541]="TagBinary",sn[sn.ContentEncodings=28032]="ContentEncodings",sn[sn.ContentEncoding=25152]="ContentEncoding",sn[sn.ContentEncodingOrder=20529]="ContentEncodingOrder",sn[sn.ContentEncodingScope=20530]="ContentEncodingScope",sn[sn.ContentCompression=20532]="ContentCompression",sn[sn.ContentCompAlgo=16980]="ContentCompAlgo",sn[sn.ContentCompSettings=16981]="ContentCompSettings",sn[sn.ContentEncryption=20533]="ContentEncryption";const an=[nn.EBML,nn.Segment],on=[nn.SeekHead,nn.Info,nn.Cluster,nn.Tracks,nn.Cues,nn.Attachments,nn.Chapters,nn.Tags],ln=[...an,...on],cn=16,un=e=>{if(e.remainingLength<1)return null;const t=vl(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength<i?null:i},dn=e=>{if(e.remainingLength<1)return null;const t=vl(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength<i-1)return null;let n=t&r-1;for(let s=1;s<i;s++)n*=256,n+=vl(e);return n},hn=(e,t)=>{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r<t;r++)i*=256,i+=vl(e);return i},fn=e=>{const t=un(e);if(null===t)return null;if(e.remainingLength<t)return null;return hn(e,t)},mn=e=>{if(e.remainingLength<1)return null;if(255===vl(e))return;e.skip(-1);const t=dn(e);return null===t?null:72057594037927940!==t?t:void 0},pn=e=>{oe(e.remainingLength>=2);const t=fn(e);if(null===t)return null;const i=mn(e);return null===i?null:{id:t,size:i}},gn=(e,t)=>{const i=Tl(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return String.fromCharCode(...i.subarray(0,r))},kn=(e,t)=>{const i=Tl(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return pe.decode(i.subarray(0,r))},yn=(e,t)=>{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?Ml(e):Dl(e)},bn=(e,t,i,r)=>Y(null,null,function*(){const n=new Set(i);let s=t;for(;null===r||s<r;){let t=e.requestSliceRange(s,2,cn);if(ct(t)&&(t=yield t),!t)break;const i=pn(t);if(!i)break;if(n.has(i.id))return{pos:s,found:!0};Dn(i.size),s=t.filePos+i.size}return{pos:null!==r&&r>s?r:s,found:!1}}),Tn=(e,t,i,r)=>Y(null,null,function*(){const n=q(2,16),s=new Set(i);let a=t;for(;a<r;){let t=e.requestSliceRange(a,0,Math.min(n,r-a));if(ct(t)&&(t=yield t),!t)break;if(t.length<8)break;for(let e=0;e<t.length-8;e++){t.filePos=a;const e=fn(t);if(null!==e&&s.has(e))return a;a++}}return null}),vn="V_MPEG4/ISO/AVC",wn="V_MPEGH/ISO/HEVC",Sn="V_VP8",Pn="V_VP9",In="V_AV1",xn="V_PRORES",Cn="A_AAC",Bn="A_MPEG/L3",En="A_OPUS",_n="A_VORBIS",Rn="A_FLAC",Fn="A_AC3",An="A_EAC3",Mn="A_DTS";function Dn(e){if(void 0===e)throw new Error("Undefined element size is used in a place where it is not supported.")}var Nn,On,Ln,zn,Un,qn;(On=Nn||(Nn={}))[On.None=0]="None",On[On.Xiph=1]="Xiph",On[On.FixedSize=2]="FixedSize",On[On.Ebml=3]="Ebml",(zn=Ln||(Ln={}))[zn.Block=1]="Block",zn[zn.Private=2]="Private",zn[zn.Next=4]="Next",(qn=Un||(Un={}))[qn.Zlib=0]="Zlib",qn[qn.Bzlib=1]="Bzlib",qn[qn.lzo1x=2]="lzo1x",qn[qn.HeaderStripping=3]="HeaderStripping";const Wn=[{id:nn.SeekHead,flag:"seekHeadSeen"},{id:nn.Info,flag:"infoSeen"},{id:nn.Tracks,flag:"tracksSeen"},{id:nn.Cues,flag:"cuesSeen"}],Hn=10*q(2,20);class Vn extends yr{constructor(e){super(e),this.readMetadataPromise=null,this.segments=[],this.currentSegment=null,this.currentTrack=null,this.currentCluster=null,this.currentBlock=null,this.currentBlockAdditional=null,this.currentCueTime=null,this.currentDecodingInstruction=null,this.currentTagTargetIsMovie=!0,this.currentSimpleTagName=null,this.currentAttachedFile=null,this.isWebM=!1,this.reader=e._reader}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.segments.flatMap(e=>e.tracks.map(e=>e.trackBacking))})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)})),hasAudio:this.segments.some(e=>e.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)})),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return Y(this,null,function*(){yield this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&(yield this.loadSegmentMetadata(t)),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e=H(H({},e),t.metadataTags);return e})}readMetadata(){var e;return null!=(e=this.readMetadataPromise)?e:this.readMetadataPromise=(()=>Y(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,cn);if(ct(t)&&(t=yield t),!t)break;const i=pn(t);if(!i)break;const r=i.id;let n=i.size;const s=t.filePos;if(r===nn.EBML){Dn(n);let e=this.reader.requestSlice(s,n);if(ct(e)&&(e=yield e),!e)break;this.readContiguousElements(e)}else if(r===nn.Segment){if(yield this.readSegment(s,n),void 0===n)break;if(null===this.reader.fileSize)break}else if(r===nn.Cluster){if(null===this.reader.fileSize)break;if(void 0===n){n=(yield bn(this.reader,s,ln,this.reader.fileSize)).pos-s}const e=ce(this.segments);e&&(e.elementEndPos=s+n)}Dn(n),e=s+n}}))()}readSegment(e,t){return Y(this,null,function*(){var i;this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let r=e;for(;null===this.currentSegment.elementEndPos||r<this.currentSegment.elementEndPos;){let e=this.reader.requestSliceRange(r,2,cn);if(ct(e)&&(e=yield e),!e)break;const t=r,n=pn(e);if(!n||!on.includes(n.id)&&n.id!==nn.Void){const e=yield Tn(this.reader,t,on,Math.min(null!=(i=this.currentSegment.elementEndPos)?i:1/0,t+Hn));if(e){r=e;continue}break}const{id:s,size:a}=n,o=e.filePos,l=Wn.findIndex(e=>e.id===s);if(-1!==l){const e=Wn[l].flag;this.currentSegment[e]=!0,Dn(a);let t=this.reader.requestSlice(o,a);ct(t)&&(t=yield t),t&&this.readContiguousElements(t)}else if(s===nn.Tags||s===nn.Attachments){s===nn.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,Dn(a);let e=this.reader.requestSlice(o,a);ct(e)&&(e=yield e),e&&this.readContiguousElements(e)}else if(s===nn.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===a)break;r=o+a}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const t of this.currentSegment.seekEntries){const i=Wn.find(e=>e.id===t.id);if(!i)continue;if(this.currentSegment[i.flag])continue;let r=this.reader.requestSliceRange(e+t.segmentPosition,2,cn);if(ct(r)&&(r=yield r),!r)continue;const n=pn(r);if(!n)continue;const{id:s,size:a}=n;if(s!==i.id)continue;Dn(a),this.currentSegment[i.flag]=!0;let o=this.reader.requestSlice(r.filePos,a);ct(o)&&(o=yield o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const e of this.currentSegment.tracks)null!==e.defaultDurationNs&&(e.defaultDuration=this.currentSegment.timestampFactor*e.defaultDurationNs/1e9);const n=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const e of this.currentSegment.cuePoints){const t=n.get(e.trackId);t&&t.cuePoints.push(e)}for(const e of this.currentSegment.tracks){e.cuePoints.sort((e,t)=>e.time-t.time);for(let t=0;t<e.cuePoints.length-1;t++){const i=e.cuePoints[t],r=e.cuePoints[t+1];i.time===r.time&&(e.cuePoints.splice(t+1,1),t--)}}let s=null,a=-1/0;for(const e of this.currentSegment.tracks)e.cuePoints.length>a&&(a=e.cuePoints.length,s=e);for(const e of this.currentSegment.tracks)0===e.cuePoints.length&&(e.cuePoints=s.cuePoints);this.currentSegment=null})}readCluster(e,t){return Y(this,null,function*(){var i;if((null==(i=t.lastReadCluster)?void 0:i.elementStartPos)===e)return t.lastReadCluster;let r=this.reader.requestSliceRange(e,2,cn);ct(r)&&(r=yield r),oe(r);const n=e,s=pn(r);oe(s);oe(s.id===nn.Cluster);let a=s.size;const o=r.filePos;if(void 0===a){a=(yield bn(this.reader,o,ln,t.elementEndPos)).pos-o}let l=this.reader.requestSlice(o,a);ct(l)&&(l=yield l);const c={segment:t,elementStartPos:n,elementEndPos:o+a,dataStartPos:o,timestamp:-1,trackData:new Map};if(this.currentCluster=c,l){const e=this.readContiguousElements(l,ln);c.elementEndPos=e}for(const[,e]of c.trackData){const t=e.track;oe(e.blocks.length>0);let i=!1;for(let n=0;n<e.blocks.length;n++){const t=e.blocks[n];t.timestamp+=c.timestamp,i||(i=t.lacing!==Nn.None)}e.presentationTimestamps=e.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let n=0;n<e.presentationTimestamps.length;n++){const i=e.presentationTimestamps[n],r=e.blocks[i.blockIndex];if(null===e.firstKeyFrameTimestamp&&r.isKeyFrame&&(e.firstKeyFrameTimestamp=r.timestamp),n<e.presentationTimestamps.length-1){const t=e.presentationTimestamps[n+1];r.duration=t.timestamp-r.timestamp}else 0===r.duration&&null!=t.defaultDuration&&r.lacing===Nn.None&&(r.duration=t.defaultDuration)}i&&(this.expandLacedBlocks(e.blocks,t),e.presentationTimestamps=e.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const r=e.blocks[e.presentationTimestamps[0].blockIndex],s=e.blocks[ce(e.presentationTimestamps).blockIndex];e.startTimestamp=r.timestamp,e.endTimestamp=s.timestamp+s.duration;const a=Re(t.clusterPositionCache,e.startTimestamp,e=>e.startTimestamp);-1!==a&&t.clusterPositionCache[a].elementStartPos===n||t.clusterPositionCache.splice(a+1,0,{elementStartPos:c.elementStartPos,startTimestamp:e.startTimestamp})}return t.lastReadCluster=c,c})}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){var i;for(let r=0;r<e.length;r++){const n=e[r];if(n.lacing===Nn.None)continue;n.decoded||(n.data=this.decodeBlockData(t,n.data),n.decoded=!0);const s=yl.tempFromBytes(n.data),a=[],o=vl(s)+1;switch(n.lacing){case Nn.Xiph:{let e=0;for(let t=0;t<o-1;t++){let t=0;for(;s.bufferPos<s.length;){const i=vl(s);if(t+=i,i<255){a.push(t),e+=t;break}}}a.push(s.length-(s.bufferPos+e))}break;case Nn.FixedSize:{const e=s.length-1,t=Math.floor(e/o);for(let i=0;i<o;i++)a.push(t)}break;case Nn.Ebml:{const e=dn(s);oe(null!==e);let t=e;a.push(t);let i=t;for(let r=1;r<o-1;r++){const e=s.bufferPos,r=dn(s);oe(null!==r);t+=r-((1<<7*(s.bufferPos-e)-1)-1),a.push(t),i+=t}a.push(s.length-(s.bufferPos+i))}break;default:oe(!1)}oe(a.length===o),e.splice(r,1);const l=n.duration||o*(null!=(i=t.defaultDuration)?i:0);for(let t=0;t<o;t++){const i=a[t],c=Tl(s,i),u=n.timestamp+l*t/o,d=l/o;e.splice(r+t,0,{timestamp:u,duration:d,isKeyFrame:n.isKeyFrame,data:c,lacing:Nn.None,decoded:!0,postProcessed:!1,mainAdditional:n.mainAdditional})}r+=o,r--}}loadSegmentMetadata(e){return Y(this,null,function*(){for(const t of e.seekEntries){if(t.id!==nn.Tags||e.tagsSeen){if(t.id!==nn.Attachments||e.attachmentsSeen)continue}else;let i=this.reader.requestSliceRange(e.dataStartPos+t.segmentPosition,2,cn);if(ct(i)&&(i=yield i),!i)continue;const r=pn(i);if(!r||r.id!==t.id)continue;const{size:n}=r;Dn(n),oe(!this.currentSegment),this.currentSegment=e;let s=this.reader.requestSlice(i.filePos,n);ct(s)&&(s=yield s),s&&this.readContiguousElements(s),this.currentSegment=null,t.id===nn.Tags?e.tagsSeen=!0:t.id===nn.Attachments&&(e.attachmentsSeen=!0)}})}readContiguousElements(e,t){for(;e.remainingLength>=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F,A,M,D,N,O,L,z,U,q,W,j,K,X,$,G,Q,Y,J,Z,ee;const te=pn(e);if(!te)return!1;if(t&&t.includes(te.id))return!1;const{id:ie,size:re}=te,ne=e.filePos;switch(Dn(re),ie){case nn.DocType:this.isWebM="webm"===gn(e,re);break;case nn.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(ne,re)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case nn.SeekID:{const t=null==(i=this.currentSegment)?void 0:i.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=hn(e,re)}break;case nn.SeekPosition:{const t=null==(r=this.currentSegment)?void 0:r.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=hn(e,re)}break;case nn.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=hn(e,re),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case nn.Duration:if(!this.currentSegment)break;this.currentSegment.duration=yn(e,re);break;case nn.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:V(H({},Ct),{primary:!1}),trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(ne,re)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>{var t;return"decompress"!==(null==(t=e.data)?void 0:t.type)||e.scope!==Ln.Block||e.data.algorithm!==Un.HeaderStripping})&&(Pt._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===vn)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===wn)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===Sn)this.currentTrack.info.codec="vp8";else if(t===Pn)this.currentTrack.info.codec="vp9";else if(t===In)this.currentTrack.info.codec="av1";else if(t===xn){const e=this.currentTrack.codecPrivate?pe.decode(this.currentTrack.codecPrivate):"";Zi.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new Kn(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===Cn?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===Bn?this.currentTrack.info.codec="mp3":t===En?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=nr):t===_n?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Rn?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Fn?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===An?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Mn?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new Xn(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case nn.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=hn(e,re);break;case nn.TrackType:{if(!this.currentTrack)break;const t=hn(e,re);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:H({},Pe),alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case nn.FlagEnabled:if(!this.currentTrack)break;hn(e,re)||(this.currentTrack=null);break;case nn.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!hn(e,re);break;case nn.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!hn(e,re);break;case nn.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!hn(e,re);break;case nn.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!hn(e,re);break;case nn.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!hn(e,re);break;case nn.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!hn(e,re);break;case nn.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=gn(e,re);break;case nn.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=Tl(e,re);break;case nn.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=hn(e,re);break;case nn.Name:if(!this.currentTrack)break;this.currentTrack.name=kn(e,re);break;case nn.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=gn(e,re),Ge(this.currentTrack.languageCode)||(this.currentTrack.languageCode=We);break;case nn.LanguageBCP47:{if(!this.currentTrack)break;const t=gn(e,re).split("-")[0];this.currentTrack.languageCode=t||We,this.currentTrack.hasLanguageBcp47=!0}break;case nn.Video:if("video"!==(null==(s=null==(n=this.currentTrack)?void 0:n.info)?void 0:s.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.PixelWidth:if("video"!==(null==(o=null==(a=this.currentTrack)?void 0:a.info)?void 0:o.type))break;this.currentTrack.info.width=hn(e,re);break;case nn.PixelHeight:if("video"!==(null==(c=null==(l=this.currentTrack)?void 0:l.info)?void 0:c.type))break;this.currentTrack.info.height=hn(e,re);break;case nn.DisplayWidth:if("video"!==(null==(d=null==(u=this.currentTrack)?void 0:u.info)?void 0:d.type))break;this.currentTrack.info.displayWidth=hn(e,re);break;case nn.DisplayHeight:if("video"!==(null==(f=null==(h=this.currentTrack)?void 0:h.info)?void 0:f.type))break;this.currentTrack.info.displayHeight=hn(e,re);break;case nn.DisplayUnit:if("video"!==(null==(p=null==(m=this.currentTrack)?void 0:m.info)?void 0:p.type))break;this.currentTrack.info.displayUnit=hn(e,re);break;case nn.AlphaMode:if("video"!==(null==(k=null==(g=this.currentTrack)?void 0:g.info)?void 0:k.type))break;this.currentTrack.info.alphaMode=1===hn(e,re);break;case nn.Colour:if("video"!==(null==(b=null==(y=this.currentTrack)?void 0:y.info)?void 0:b.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.MatrixCoefficients:{if("video"!==(null==(v=null==(T=this.currentTrack)?void 0:T.info)?void 0:v.type))break;const t=hn(e,re),i=we[t];this.currentTrack.info.colorSpace.matrix=i}break;case nn.Range:{if("video"!==(null==(S=null==(w=this.currentTrack)?void 0:w.info)?void 0:S.type))break;const t=hn(e,re);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case nn.TransferCharacteristics:{if("video"!==(null==(I=null==(P=this.currentTrack)?void 0:P.info)?void 0:I.type))break;const t=hn(e,re),i=Te[t];this.currentTrack.info.colorSpace.transfer=i}break;case nn.Primaries:{if("video"!==(null==(C=null==(x=this.currentTrack)?void 0:x.info)?void 0:C.type))break;const t=hn(e,re),i=ye[t];this.currentTrack.info.colorSpace.primaries=i}break;case nn.Projection:if("video"!==(null==(E=null==(B=this.currentTrack)?void 0:B.info)?void 0:E.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.ProjectionPoseRoll:{if("video"!==(null==(R=null==(_=this.currentTrack)?void 0:_.info)?void 0:R.type))break;const t=-yn(e,re);try{this.currentTrack.info.rotation=le(t)}catch(se){}}break;case nn.Audio:if("audio"!==(null==(A=null==(F=this.currentTrack)?void 0:F.info)?void 0:A.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.SamplingFrequency:if("audio"!==(null==(D=null==(M=this.currentTrack)?void 0:M.info)?void 0:D.type))break;this.currentTrack.info.sampleRate=yn(e,re);break;case nn.Channels:if("audio"!==(null==(O=null==(N=this.currentTrack)?void 0:N.info)?void 0:O.type))break;this.currentTrack.info.numberOfChannels=hn(e,re);break;case nn.BitDepth:if("audio"!==(null==(z=null==(L=this.currentTrack)?void 0:L.info)?void 0:z.type))break;this.currentTrack.info.bitDepth=hn(e,re);break;case nn.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(ne,re)),this.currentCueTime=null;break;case nn.CueTime:this.currentCueTime=hn(e,re);break;case nn.CueTrackPositions:{if(null===this.currentCueTime)break;oe(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(ne,re)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case nn.CueTrack:{const t=null==(U=this.currentSegment)?void 0:U.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=hn(e,re)}break;case nn.CueClusterPosition:{const t=null==(q=this.currentSegment)?void 0:q.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;oe(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+hn(e,re)}break;case nn.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=hn(e,re);break;case nn.SimpleBlock:{if(!this.currentCluster)break;const t=dn(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Il(e),n=vl(e),s=n>>1&3;let a=!!(128&n);"audio"===(null==(W=i.track.info)?void 0:W.type)&&i.track.info.codec&&(a=!0);const o=Tl(e,re-(e.filePos-ne)),l=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:a,data:o,lacing:s,decoded:!l,postProcessed:!1,mainAdditional:null})}break;case nn.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(ne,re)),this.currentBlock=null;break;case nn.Block:{if(!this.currentCluster)break;const t=dn(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Il(e),n=vl(e)>>1&3,s=Tl(e,re-(e.filePos-ne)),a=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:s,lacing:n,decoded:!a,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case nn.BlockAdditions:this.readContiguousElements(e.slice(ne,re));break;case nn.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(ne,re)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case nn.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=Tl(e,re);break;case nn.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=hn(e,re);break;case nn.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=hn(e,re);break;case nn.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case nn.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(ne,re));break;case nn.Targets:this.readContiguousElements(e.slice(ne,re));break;case nn.TargetTypeValue:50!==hn(e,re)&&(this.currentTagTargetIsMovie=!1);break;case nn.TagTrackUID:case nn.TagEditionUID:case nn.TagChapterUID:case nn.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case nn.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(ne,re));break;case nn.TagName:this.currentSimpleTagName=kn(e,re);break;case nn.TagString:{if(!this.currentSimpleTagName)break;const t=kn(e,re);this.processTagValue(this.currentSimpleTagName,t)}break;case nn.TagBinary:{if(!this.currentSimpleTagName)break;const t=Tl(e,re);this.processTagValue(this.currentSimpleTagName,t)}break;case nn.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(ne,re));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(null!=t.raw||(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new xt(this.currentAttachedFile.fileData,null!=(j=this.currentAttachedFile.fileMediaType)?j:void 0,null!=(K=this.currentAttachedFile.fileName)?K:void 0,null!=(X=this.currentAttachedFile.fileDescription)?X:void 0)),(null==($=this.currentAttachedFile.fileMediaType)?void 0:$.startsWith("image/"))&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}null!=t.images||(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:null!=(G=this.currentAttachedFile.fileName)?G:void 0,description:null!=(Q=this.currentAttachedFile.fileDescription)?Q:void 0})}this.currentAttachedFile=null}break;case nn.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=BigInt("0");for(let r=0;r<t;r++)i<<=BigInt("8"),i+=BigInt(vl(e));return i})(e,re);break;case nn.FileName:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=kn(e,re);break;case nn.FileMediaType:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=gn(e,re);break;case nn.FileData:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=Tl(e,re);break;case nn.FileDescription:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=kn(e,re);break;case nn.ContentEncodings:if(!this.currentTrack)break;this.readContiguousElements(e.slice(ne,re)),this.currentTrack.decodingInstructions.sort((e,t)=>t.order-e.order);break;case nn.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Ln.Block,data:null},this.readContiguousElements(e.slice(ne,re)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case nn.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=hn(e,re);break;case nn.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=hn(e,re);break;case nn.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:Un.Zlib,settings:null},this.readContiguousElements(e.slice(ne,re));break;case nn.ContentCompAlgo:if("decompress"!==(null==(J=null==(Y=this.currentDecodingInstruction)?void 0:Y.data)?void 0:J.type))break;this.currentDecodingInstruction.data.algorithm=hn(e,re);break;case nn.ContentCompSettings:if("decompress"!==(null==(ee=null==(Z=this.currentDecodingInstruction)?void 0:Z.data)?void 0:ee.type))break;this.currentDecodingInstruction.data.settings=Tl(e,re);break;case nn.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=ne+re,!0}decodeBlockData(e,t){oe(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(oe(r.data),"decompress"===r.data.type)if(r.data.algorithm===Un.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i,r;if(!(null==(i=this.currentSegment)?void 0:i.metadataTags))return;const n=this.currentSegment.metadataTags;if(null!=n.raw||(n.raw={}),null!=(r=n.raw)[e]||(r[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":null!=n.title||(n.title=t);break;case"description":null!=n.description||(n.description=t);break;case"artist":null!=n.artist||(n.artist=t);break;case"album":null!=n.album||(n.album=t);break;case"album_artist":null!=n.albumArtist||(n.albumArtist=t);break;case"genre":null!=n.genre||(n.genre=t);break;case"comment":null!=n.comment||(n.comment=t);break;case"lyrics":null!=n.lyrics||(n.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||null!=n.date||(n.date=e)}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.trackNumber||(n.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.tracksTotal||(n.tracksTotal=r))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.discNumber||(n.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.discsTotal||(n.discsTotal=r))}}}getDurationFromMetadata(e){return Y(this,null,function*(){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){oe(r.trackBacking);const e=yield r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(null!=t?t:1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=null!=t?t:0,i})}}class jn{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getFirstPacket(e){return Y(this,null,function*(){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)})}intoTimescale(e){return He(e*this.internalTrack.segment.timestampFactor)}getPacket(e,t){return Y(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=Re(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1<t.blocks.length)return{blockIndex:i.blockIndex+1,correctBlockFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{blockIndex:0,correctBlockFound:!0}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}getKeyPacket(e,t){return Y(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=Ne(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)})}getNextKeyPacket(e,t){return Y(this,null,function*(){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return oe(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}fetchPacketInCluster(e,t,i){return Y(this,null,function*(){var r,n;if(-1===t)return null;const s=e.trackData.get(this.internalTrack.id).blocks[t];if(oe(s),s.decoded||(s.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,s.data),s.decoded=!0),!s.postProcessed){if("prores"===(null==(r=this.internalTrack.info)?void 0:r.codec)){if(!(s.data.length>=8&&105===s.data[4]&&99===s.data[5]&&112===s.data[6]&&102===s.data[7])){const e=new Uint8Array(s.data.length+8);me(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(s.data,8),s.data=e}}s.postProcessed=!0}const a=i.metadataOnly?br:s.data,o=s.timestamp/this.internalTrack.segment.timestampFactor,l=s.duration/this.internalTrack.segment.timestampFactor,c={};s.mainAdditional&&"video"===(null==(n=this.internalTrack.info)?void 0:n.type)&&this.internalTrack.info.alphaMode&&(c.alpha=i.metadataOnly?br:s.mainAdditional,c.alphaByteLength=s.mainAdditional.byteLength);const u=new Tr(a,s.isKeyFrame?"key":"delta",o,l,e.dataStartPos+t,s.data.byteLength,c);return this.packetToClusterLocation.set(u,{cluster:e,blockIndex:t}),u})}performClusterLookup(e,t,i,r,n){return Y(this,null,function*(){var s,a,o,l;const{demuxer:c,segment:u}=this.internalTrack;let d=null,h=null,f=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,n);-1!==i&&(h=e,f=i)}const m=Re(this.internalTrack.cuePoints,i,e=>e.time),p=-1!==m?this.internalTrack.cuePoints[m]:null,g=Re(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),k=-1!==g?this.internalTrack.clusterPositionCache[g]:null,y=Math.max(null!=(s=null==p?void 0:p.clusterPosition)?s:0,null!=(a=null==k?void 0:k.elementStartPos)?a:0)||null;let b;for(e?null===y||e.elementStartPos>=y?(b=e.elementEndPos,d=e):b=y:b=null!=y?y:u.clusterSeekStartPos;null===u.elementEndPos||b<=u.elementEndPos-2;){if(d){const e=d.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=c.reader.requestSliceRange(b,2,cn);if(ct(e)&&(e=yield e),!e)break;const i=b,s=pn(e);if(!s||!on.includes(s.id)&&s.id!==nn.Void){const e=yield Tn(c.reader,i,on,Math.min(null!=(o=u.elementEndPos)?o:1/0,i+Hn));if(e){b=e;continue}break}const a=s.id;let l=s.size;const m=e.filePos;if(a===nn.Cluster){d=yield c.readCluster(i,u),l=d.elementEndPos-m;const{blockIndex:e,correctBlockFound:r}=t(d);if(r)return this.fetchPacketInCluster(d,e,n);-1!==e&&(h=d,f=e)}if(void 0===l){oe(a!==nn.Cluster);l=(yield bn(c.reader,m,ln,u.elementEndPos)).pos-m}const p=m+l;if(null===u.elementEndPos){let e=c.reader.requestSliceRange(p,2,cn);if(ct(e)&&(e=yield e),!e)break;if(fn(e)===nn.Segment){u.elementEndPos=p;break}}b=p}if(p&&(!h||h.elementStartPos<p.clusterPosition)){const e=this.internalTrack.cuePoints[m-1];oe(!e||e.time<p.time);const i=null!=(l=null==e?void 0:e.time)?l:-1/0;return this.performClusterLookup(null,t,i,r,n)}return h?this.fetchPacketInCluster(h,f,n):null})}}class Kn extends jn{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.info.rotation}getColorSpace(){return Y(this,null,function*(){var e,t,i,r;const n=yield this.getDecoderConfig();return n?{primaries:null==(e=n.colorSpace)?void 0:e.primaries,transfer:null==(t=n.colorSpace)?void 0:t.transfer,matrix:null==(i=n.colorSpace)?void 0:i.matrix,fullRange:null==(r=n.colorSpace)?void 0:r.fullRange}:this.internalTrack.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return this.internalTrack.info.alphaMode||"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)})}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e,t,i,r,n;let s=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(s=yield this.getFirstPacket({}));const a={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&s?$t(s.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&s?ni(s.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&s?gi(s.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&s?yi(s.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&s?bi(s.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!Se(this.internalTrack.info.colorSpace)){const n=ir(a);null!=(e=this.internalTrack.info.colorSpace).primaries||(e.primaries=n.primaries),null!=(t=this.internalTrack.info.colorSpace).transfer||(t.transfer=n.transfer),null!=(i=this.internalTrack.info.colorSpace).matrix||(i.matrix=n.matrix),null!=(r=this.internalTrack.info.colorSpace).fullRange||(r.fullRange=n.fullRange)}const o={codec:tr(a),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(n=this.internalTrack.info.codecDescription)?n:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class Xn extends jn{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Wi(e.data)}return{codec:rr({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const $n=(e,t,i,r=null)=>Y(null,null,function*(){const n=q(2,16);let s=t;for(;null===i||s<i;){const t=null!==i?Math.min(n,i-s):n;let a=e.requestSliceRange(s,4,t);if(ct(a)&&(a=yield a),!a||a.length<4)break;for(;a.remainingLength>=4;){const t=a.filePos,i=Cl(a),n=null!==e.fileSize?e.fileSize-s:null,o=fr(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&kr(o.header.channel)===kr(r.channel)))return{header:o.header,startPos:s};a.filePos=t+o.bytesAdvanced,s=a.filePos}}return null});class Gn extends yr{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new xe,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new Qn(this)]}))()})}advanceReader(){return Y(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=Xl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=yield $n(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=hr(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(ct(r)&&(r=yield r),r){const n=Cl(r);if(n===ur||n===dr){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(ct(t)&&(t=yield t),t){const e=Tl(t,12),i=me(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&pr.FrameCount?i.getUint32(4,!1):null,fileSize:r&pr.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const n=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:n,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame})}getMimeType(){return Y(this,null,function*(){return"audio/mpeg"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=!0;let n=this.reader.requestSlice(i.filePos,r.size);if(ct(n)&&(n=yield n),!n)break;$l(n,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=Wl){let e=this.reader.requestSlice(this.reader.fileSize-Wl,Wl);ct(e)&&(e=yield e),oe(e);"TAG"===Nl(e,3)&&jl(e,this.metadataTags)}return this.metadataTags}finally{e()}})}}class Qn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){const e=this.demuxer;if(oe(null!==e.firstFrameHeader),oe(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,n=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(n<<t):2===i?144*r/n:12*r/n*4),a=(e.reader.fileSize-e.firstFrameHeaderPos)/s;return Math.round(a)*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}var t,i,r,n;return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getCodec(){return"mp3"}getInternalCodecId(){return null}getNumberOfChannels(){return oe(this.demuxer.firstFrameHeader),kr(this.demuxer.firstFrameHeader.channel)}getSampleRate(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.firstFrameHeader),{codec:"mp3",numberOfChannels:kr(this.demuxer.firstFrameHeader.channel),sampleRate:this.demuxer.firstFrameHeader.sampleRate}})}getPacketAtIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.dataSize)}return new Tr(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=_e(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);yield this.demuxer.advanceReader()}}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Yn=1399285583,Jn=new Uint32Array(256);for(let Bc=0;Bc<256;Bc++){let e=Bc<<24;for(let t=0;t<8;t++)e=2147483648&e?e<<1^79764919:e<<1;Jn[Bc]=e>>>0&4294967295}const Zn=e=>{const t=me(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let n=0;n<e.length;n++){const t=e[n];r=(r<<8^Jn[r>>>24^t])>>>0}return t.setUint32(22,i,!0),r},es=(e,t,i)=>{let r=0,n=null;if(e.length>0)if("vorbis"===t.codec){oe(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,a=(e[0]&s)>>1;if(a>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let o=i;const l=t.vorbisInfo.modeBlockflags[a];if(n=t.vorbisInfo.blocksizes[l],1===l){const i=1+(1|s),r=e[0]&i?1:0;o=t.vorbisInfo.blocksizes[r]}r=null!==o?o+n>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:Ti[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:n}},ts=27,is=282,rs=e=>{const t=e.filePos;if(Bl(e)!==Yn)return null;e.skip(1);const i=vl(e),r=Al(e),n=Bl(e),s=Bl(e),a=Bl(e),o=vl(e),l=new Uint8Array(o);for(let d=0;d<o;d++)l[d]=vl(e);const c=27+o,u=l.reduce((e,t)=>e+t,0);return{headerStartPos:t,totalSize:c+u,dataStartPos:t+c,dataSize:u,headerType:i,granulePosition:r,serialNumber:n,sequenceNumber:s,checksum:a,lacingValues:l}},ns=(e,t)=>{for(;e.filePos<t-3;){const t=Bl(e),i=79;if((255&t)===i||(t>>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===Yn)return!0;e.skip(1)}}return!1};class ss extends yr{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,ts,is);if(ct(t)&&(t=yield t),!t)break;const i=rs(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=yield this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?yield this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&(yield this.readOpusMetadata(e,t)),null!==t.codecInfo.codec&&this.trackBackings.push(new as(t,this)))}}))()})}readVorbisMetadata(e,t){return Y(this,null,function*(){let i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=yield this.findNextPacketStart(r),!i)return;const n=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!n)return;if(3!==r.data[0]||5!==n.data[0])return;const s=[],a=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};a(e.data.length),a(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+n.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(n.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=n;const l=me(e.data);t.numberOfChannels=l.getUint8(11),t.sampleRate=l.getUint32(12,!0);const c=l.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&c),1<<(c>>4)],modeBlockflags:vi(n.data).modeBlockflags},Ii(r.data.subarray(7),this.metadataTags)})}readOpusMetadata(e,t){return Y(this,null,function*(){const i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const n=(e=>{const t=me(e),i=t.getUint8(9),r=t.getUint16(10,!0),n=t.getUint32(12,!0),s=t.getInt16(16,!0),a=t.getUint8(18);let o=null;return a&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:n,outputGain:s,channelMappingFamily:a,channelMappingTable:o}})(e.data);t.numberOfChannels=n.outputChannelCount,t.sampleRate=nr,t.codecInfo.opusInfo={preSkip:n.preSkip},Ii(r.data.subarray(8),this.metadataTags)})}readPacket(e,t){return Y(this,null,function*(){oe(t<e.lacingValues.length);let i=0;for(let u=0;u<t;u++)i+=e.lacingValues[u];let r=e,n=i,s=t;const a=[];e:for(;;){let t=this.reader.requestSlice(r.dataStartPos,r.dataSize);ct(t)&&(t=yield t),oe(t);const o=Tl(t,r.dataSize);for(;;){if(s===r.lacingValues.length){a.push(o.subarray(i,n));break}const e=r.lacingValues[s];if(n+=e,e<255){a.push(o.subarray(i,n));break e}s++}let l=r.headerStartPos+r.totalSize;for(;;){let t=this.reader.requestSliceRange(l,ts,is);if(ct(t)&&(t=yield t),!t)return null;const i=rs(t);if(!i)return null;if(r=i,r.serialNumber===e.serialNumber)break;l=r.headerStartPos+r.totalSize}i=0,n=0,s=0}const o=a.reduce((e,t)=>e+t.length,0);if(0===o)return null;const l=new Uint8Array(o);let c=0;for(let e=0;e<a.length;e++){const t=a[e];l.set(t,c),c+=t.length}return{data:l,endPage:r,endSegmentIndex:s}})}findNextPacketStart(e){return Y(this,null,function*(){if(e.endSegmentIndex<e.endPage.lacingValues.length-1)return{startPage:e.endPage,startSegmentIndex:e.endSegmentIndex+1};if(!!(4&e.endPage.headerType))return null;let t=e.endPage.headerStartPos+e.endPage.totalSize;for(;;){let i=this.reader.requestSliceRange(t,ts,is);if(ct(i)&&(i=yield i),!i)return null;const r=rs(i);if(!r)return null;if(r.serialNumber===e.endPage.serialNumber)return{startPage:r,startSegmentIndex:0};t=r.headerStartPos+r.totalSize}})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();return(e=>{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(yield Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})))).filter(Boolean)})})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}class as{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new xe,this.internalSampleRate="opus"===e.codecInfo.codec?nr:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return oe(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}getDecoderConfig(){return Y(this,null,function*(){var e;return oe(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:null!=(e=this.bitstream.description)?e:void 0}})}getName(){return null}getLanguageCode(){return We}getDisposition(){return V(H({},Ct),{primary:!1})}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(oe(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:n}=es(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new Tr(i.metadataOnly?br:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:n}),s}getFirstPacket(e){return Y(this,null,function*(){oe(this.bitstream.lastMetadataPacket);const t=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(oe(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=yield this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=yield this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const n=i.timestampInSamples+i.durationInSamples,s=yield this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:n,vorbisLastBlocksize:i.vorbisBlockSize},t)})}getPacket(e,t){return Y(this,null,function*(){var i,r;if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const n=He(e*this.internalSampleRate);if(0===n)return this.getFirstPacket(t);if(n<0)return null;oe(this.bitstream.lastMetadataPacket);const s=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!s)return null;let a=s.startPage,o=this.demuxer.reader.fileSize;const l=[a];e:for(;a.headerStartPos+a.totalSize<o;){const e=a.headerStartPos,t=Math.floor((e+o)/2);let i=t;for(;;){const e=Math.min(i+65307,o-ts);let r=this.demuxer.reader.requestSlice(i,e-i);ct(r)&&(r=yield r),oe(r);if(!ns(r,e)){o=t+ts;continue e}let s=this.demuxer.reader.requestSliceRange(r.filePos,ts,is);ct(s)&&(s=yield s),oe(s);const c=rs(s);oe(c);let u=!1;if(c.serialNumber===this.bitstream.serialNumber)u=!0;else{let e=this.demuxer.reader.requestSlice(c.headerStartPos,c.totalSize);ct(e)&&(e=yield e),oe(e);const t=Tl(e,c.totalSize);u=Zn(t)===c.checksum}if(!u){i=c.headerStartPos+4;continue}if(u&&c.serialNumber!==this.bitstream.serialNumber){i=c.headerStartPos+c.totalSize;continue}if(!(-1===c.granulePosition)){this.granulePositionToTimestampInSamples(c.granulePosition)>n?o=c.headerStartPos:(a=c,l.push(c));continue e}i=c.headerStartPos+c.totalSize}}let c=s.startPage;for(const e of l){if(e.granulePosition===a.granulePosition)break;(!c||e.headerStartPos>c.headerStartPos)&&(c=e)}let u=c;const d=[u];for(;u.serialNumber!==this.bitstream.serialNumber||u.granulePosition!==a.granulePosition;){const e=u.headerStartPos+u.totalSize;let t=this.demuxer.reader.requestSliceRange(e,ts,is);ct(t)&&(t=yield t),oe(t);const i=rs(t);oe(i),u=i,u.serialNumber===this.bitstream.serialNumber&&d.push(u)}oe(-1!==u.granulePosition);let h,f,m=null,p=u,g=0;if(u.headerStartPos===s.startPage.headerStartPos)h=this.granulePositionToTimestampInSamples(0),f=!0,m=0;else{h=0,f=!1;for(let t=u.lacingValues.length-1;t>=0;t--){if(u.lacingValues[t]<255){m=t+1;break}}if(null===m)throw new Error("Invalid page with granule position: no packets end on this page.");g=m-1;const e={data:br,endPage:p,endSegmentIndex:g};if(yield this.demuxer.findNextPacketStart(e)){const e=ls(d,u,m);oe(e);const t=os(d,e.page,e.segmentIndex);t&&(u=t.page,m=t.segmentIndex)}else for(;;){const e=ls(d,u,m);if(!e)break;const t=os(d,e.page,e.segmentIndex);if(!t)break;if(u=t.page,m=t.segmentIndex,e.page.headerStartPos!==p.headerStartPos){p=e.page,g=e.segmentIndex;break}}}let k=null,y=null;for(;null!==u;){oe(null!==m);const e=yield this.demuxer.readPacket(u,m);if(!e)break;if(!(u.headerStartPos===s.startPage.headerStartPos&&m<s.startSegmentIndex)){let s=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:h,vorbisLastBlocksize:null!=(i=null==y?void 0:y.vorbisBlockSize)?i:null},t);oe(s);let a=this.encodedPacketToMetadata.get(s);if(oe(a),f||e.endPage.headerStartPos!==p.headerStartPos||e.endSegmentIndex!==g?h+=a.durationInSamples:(h=this.granulePositionToTimestampInSamples(u.granulePosition),f=!0,s=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:h-a.durationInSamples,vorbisLastBlocksize:null!=(r=null==y?void 0:y.vorbisBlockSize)?r:null},t),oe(s),a=this.encodedPacketToMetadata.get(s),oe(a)),k=s,y=a,f&&(Math.max(h,0)>n||Math.max(a.timestampInSamples,0)===n))break}const a=yield this.demuxer.findNextPacketStart(e);if(!a)break;u=a.startPage,m=a.startSegmentIndex}return k})}getPacketSequential(e,t){return Y(this,null,function*(){const i=yield this.sequentialScanMutex.acquire();try{const i=He(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=Re(this.sequentialScanCache,i,e=>e.timestampInSamples);let n;if(-1!==r){const e=this.sequentialScanCache[r];n=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else n=yield this.getFirstPacket(t);let s=0;for(;n&&n.timestamp<e;){const i=yield this.getNextPacket(n,t);if(!i||i.timestamp>e)break;if(n=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(n);oe(e),this.sequentialScanCache.length>0&&oe(ce(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return n}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const os=(e,t,i)=>{let r=t,n=i;e:for(;;){for(n--;n>=0;n--){if(r.lacingValues[n]<255){n++;break e}}oe(-1===n);if(!(1&r.headerType)){n=0;break}const t=De(e,e=>e.headerStartPos<r.headerStartPos);if(!t)return null;r=t,n=r.lacingValues.length}if(oe(-1!==n),n===r.lacingValues.length){const t=e[e.indexOf(r)+1];oe(t),r=t,n=0}return{page:r,segmentIndex:n}},ls=(e,t,i)=>{if(i>0)return{page:t,segmentIndex:i-1};const r=De(e,e=>e.headerStartPos<t.headerStartPos);return r?{page:r,segmentIndex:r.lacingValues.length-1}:null};var cs,us;(us=cs||(cs={}))[us.PCM=1]="PCM",us[us.IEEE_FLOAT=3]="IEEE_FLOAT",us[us.ALAW=6]="ALAW",us[us.MULAW=7]="MULAW",us[us.EXTENSIBLE=65534]="EXTENSIBLE";class ds extends yr{constructor(e){super(e),this.metadataPromise=null,this.dataStart=-1,this.dataSize=-1,this.audioInfo=null,this.trackBackings=[],this.lastKnownPacketIndex=0,this.metadataTags={},this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){var e,t;let i=this.reader.requestSlice(0,12);ct(i)&&(i=yield i),oe(i);const r=Nl(i,4),n="RIFX"!==r,s="RF64"===r,a=xl(i,n);let o=s?this.reader.fileSize:Math.min(a+8,null!=(e=this.reader.fileSize)?e:1/0);if("WAVE"!==Nl(i,4))throw new Error("Invalid WAVE file - wrong format");let l=0,c=null,u=i.filePos;for(;null===o||u<o;){let e=this.reader.requestSlice(u,8);if(ct(e)&&(e=yield e),!e)break;const i=Nl(e,4),r=xl(e,n),a=e.filePos;if(s&&0===l&&"ds64"!==i)throw new Error('Invalid RF64 file: First chunk must be "ds64".');if("fmt "===i)yield this.parseFmtChunk(a,r,n);else if("data"===i){if(null!=c||(c=r),this.dataStart=e.filePos,this.dataSize=Math.min(c,(null!=o?o:1/0)-this.dataStart),null===this.reader.fileSize)break}else if("ds64"===i){let e=this.reader.requestSlice(a,r);if(ct(e)&&(e=yield e),!e)break;const i=_l(e,n);c=_l(e,n),o=Math.min(i+8,null!=(t=this.reader.fileSize)?t:1/0)}else"LIST"===i?yield this.parseListChunk(a,r,n):"ID3 "!==i&&"id3 "!==i||(yield this.parseId3Chunk(a,r));u=a+r+(1&r),l++}if(!this.audioInfo)throw new Error('Invalid WAVE file - missing "fmt " chunk');if(-1===this.dataStart)throw new Error('Invalid WAVE file - missing "data" chunk');const d=this.audioInfo.blockSizeInBytes;this.dataSize=Math.floor(this.dataSize/d)*d,this.trackBackings.push(new fs(this))}))()})}parseFmtChunk(e,t,i){return Y(this,null,function*(){let r=this.reader.requestSlice(e,t);if(ct(r)&&(r=yield r),!r)return;let n=wl(r,i);const s=wl(r,i),a=xl(r,i);r.skip(4);const o=wl(r,i);let l;if(l=14===t?8:wl(r,i),t>=18&&357!==n){const e=wl(r,i),s=t-18;if(Math.min(s,e)>=22&&n===cs.EXTENSIBLE){r.skip(6);const e=Tl(r,16);n=e[0]|e[1]<<8}}if(n!==cs.MULAW&&n!==cs.ALAW||(l=8),n!==cs.PCM&&n!==cs.IEEE_FLOAT&&n!==cs.ALAW&&n!==cs.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${n}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(n===cs.PCM&&![8,16,24,32].includes(l))throw new Error(`Unsupported WAVE PCM bit depth (${l}). Only 8, 16, 24, and 32 bits are supported.`);if(n===cs.IEEE_FLOAT&&![32,64].includes(l))throw new Error(`Unsupported WAVE float bit depth (${l}). Only 32 and 64 bits are supported.`);this.audioInfo={format:n,numberOfChannels:s,sampleRate:a,sampleSizeInBytes:Math.ceil(l/8),blockSizeInBytes:o}})}parseListChunk(e,t,i){return Y(this,null,function*(){var r,n,s,a,o,l,c,u,d,h,f;let m=this.reader.requestSlice(e,t);if(ct(m)&&(m=yield m),!m)return;const p=Nl(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=Nl(m,4),t=xl(m,i),p=Tl(m,t);let k=0;for(let i=0;i<p.length&&0!==p[i];i++)k++;const y=String.fromCharCode(...p.subarray(0,k));switch(null!=(r=this.metadataTags).raw||(r.raw={}),this.metadataTags.raw[e]=y,e){case"INAM":case"TITL":null!=(n=this.metadataTags).title||(n.title=y);break;case"TIT3":null!=(s=this.metadataTags).description||(s.description=y);break;case"IART":null!=(a=this.metadataTags).artist||(a.artist=y);break;case"IPRD":null!=(o=this.metadataTags).album||(o.album=y);break;case"IPRT":case"ITRK":case"TRCK":{const e=y.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=(l=this.metadataTags).trackNumber||(l.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(c=this.metadataTags).tracksTotal||(c.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||null!=(u=this.metadataTags).date||(u.date=e)}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&(null!=(d=this.metadataTags).date||(d.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":null!=(h=this.metadataTags).genre||(h.genre=y);break;case"ICMT":case"CMNT":case"COMM":null!=(f=this.metadataTags).comment||(f.comment=y)}g+=8+t+(1&t)}})}parseId3Chunk(e,t){return Y(this,null,function*(){let i=this.reader.requestSlice(e,t);if(ct(i)&&(i=yield i),!i)return;const r=Xl(i);if(r){const n=t-Hl;if(r.size=Math.min(r.size,n),r.size>0){const t=i.slice(e+Hl,r.size);$l(t,r,this.metadataTags)}}})}getCodec(){if(oe(this.audioInfo),this.audioInfo.format===cs.MULAW)return"ulaw";if(this.audioInfo.format===cs.ALAW)return"alaw";if(this.audioInfo.format===cs.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===cs.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}oe(!1)}getMimeType(){return Y(this,null,function*(){return"audio/wav"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}const hs=2048;class fs{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.format}getDecoderConfig(){return Y(this,null,function*(){const e=this.demuxer.getCodec();return e?(oe(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null})}getNumberOfChannels(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return oe(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getDisposition(){return H({},Ct)}getPacketAtIndex(e,t){return Y(this,null,function*(){oe(e>=0),oe(this.demuxer.audioInfo);const i=e*hs*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(hs*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(ct(e)&&(e=yield e),!e)return null}let n;if(t.metadataOnly)n=br;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);ct(e)&&(e=yield e),oe(e),n=Tl(e,r)}const s=e*hs/this.demuxer.audioInfo.sampleRate,a=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new Tr(n,"key",s,a,e,r)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getPacket(e,t){return Y(this,null,function*(){oe(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/hs,(this.demuxer.dataSize-1)/(hs*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=yield this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;oe(null===this.demuxer.reader.fileSize);let n=yield this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;n;){const e=yield this.getNextPacket(n,t);if(!e)break;n=e}return n})}getNextPacket(e,t){oe(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/hs);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const ms=e=>{const t=e.filePos,i=Tl(e,9),r=new Bt(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const n=r.readBits(1),s=r.readBits(2)+1,a=r.readBits(4);if(15===a)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const l=r.readBits(13);r.skipBits(11);const c=r.readBits(2)+1;if(1!==c)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===n?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:a,channelConfiguration:o,frameLength:l,numberOfAacFrames:c,crcCheck:u,startPos:t}},ps=1024;class gs extends yr{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new xe,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();oe(this.firstFrameHeader),this.trackBackings=[new ks(this)]}))()})}advanceReader(){return Y(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=Xl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=ms(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=Et[t.samplingFrequencyIndex];oe(void 0!==i);const r=ps/i,n={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(n),this.nextTimestampInSamples+=ps,this.lastLoadedPos=t.startPos+t.frameLength})}getMimeType(){return Y(this,null,function*(){return"audio/aac"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,Hl);if(ct(t)&&(t=yield t),!t)break;const i=Xl(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(ct(r)&&(r=yield r),!r)break;$l(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}})}}class ks{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/ps}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getCodec(){return"aac"}getInternalCodecId(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){oe(this.demuxer.firstFrameHeader);const e=_t[this.demuxer.firstFrameHeader.channelConfiguration];return oe(void 0!==e),e}getSampleRate(){oe(this.demuxer.firstFrameHeader);const e=Et[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return oe(void 0!==e),e}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}})}getPacketAtIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.dataSize)}return new Tr(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=_e(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);yield this.demuxer.advanceReader()}}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}class ys extends yr{constructor(e){super(e),this.loadedSamples=[],this.metadataPromise=null,this.trackBacking=null,this.metadataTags={},this.audioInfo=null,this.lastLoadedPos=null,this.blockingBit=null,this.readingMutex=new xe,this.lastSampleLoaded=!1,this.reader=e._reader}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),oe(this.trackBacking),[this.trackBacking]})}getMimeType(){return Y(this,null,function*(){return"audio/flac"})}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){var e;let t=0;for(;;){let e=this.reader.requestSlice(t,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const i=Xl(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);ct(r)&&(r=yield r),oe(r),$l(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||t<this.reader.fileSize;){let i=this.reader.requestSlice(t,4);if(ct(i)&&(i=yield i),t+=4,null===i)throw new Error(`Metadata block at position ${t} is too small! Corrupted file.`);oe(i);const r=vl(i),n=Pl(i),s=0!==(128&r);switch(127&r){case Si.STREAMINFO:{let e=this.reader.requestSlice(t,n);if(ct(e)&&(e=yield e),oe(e),null===e)throw new Error(`StreamInfo block at position ${t} is too small! Corrupted file.`);const i=Tl(e,34),r=new Bt(i),s=r.readBits(16),a=r.readBits(16),o=r.readBits(24),l=r.readBits(24),c=r.readBits(20),u=r.readBits(3)+1;r.readBits(5);const d=r.readBits(36);r.skipBits(128);const h=new Uint8Array(42);h.set(new Uint8Array([102,76,97,67]),0),h.set(new Uint8Array([128,0,0,34]),4),h.set(i,8),this.audioInfo={numberOfChannels:u,sampleRate:c,totalSamples:d,minimumBlockSize:s,maximumBlockSize:a,minimumFrameSize:o,maximumFrameSize:l,description:h},this.trackBacking=new bs(this);break}case Si.VORBIS_COMMENT:{let e=this.reader.requestSlice(t,n);ct(e)&&(e=yield e),oe(e),Ii(Tl(e,n),this.metadataTags);break}case Si.PICTURE:{let i=this.reader.requestSlice(t,n);ct(i)&&(i=yield i),oe(i);const r=Cl(i),s=Cl(i),a=pe.decode(Tl(i,s)),o=Cl(i),l=pe.decode(Tl(i,o));i.skip(16);const c=Cl(i),u=Tl(i,c);null!=(e=this.metadataTags).images||(e.images=[]),this.metadataTags.images.push({data:u,mimeType:a,kind:3===r?"coverFront":4===r?"coverBack":"unknown",description:l});break}}if(t+=n,s){this.lastLoadedPos=t;break}}if(!this.audioInfo)throw new Error("Missing STREAMINFO metadata block! Corrupted FLAC file.")}))()})}readNextFlacFrame(e){return Y(this,arguments,function*({startPos:e,isFirstPacket:t}){oe(this.audioInfo);const i=this.audioInfo.maximumBlockSize*this.audioInfo.numberOfChannels*4+16+2,r=this.audioInfo.minimumFrameSize||10,n=(this.audioInfo.maximumFrameSize||i)+16,s=yield this.reader.requestSliceRange(e,16,n);if(!s)return null;const a=this.readFlacFrameHeader({slice:s,isFirstPacket:t});if(!a)return null;for(s.filePos=e+r;;){if(s.filePos>s.end-6)return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:s.end-e,isLastFrame:!0};if(255===vl(s)){const t=s.filePos;if(vl(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-a.num!==1){s.filePos=t;continue}}else if(r.num-a.num!==a.blockSize){s.filePos=t;continue}return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:i,isLastFrame:!1}}}})}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=Tl(e,4),n=new Bt(r);if(32764!==n.readBits(15))return null;if(null===this.blockingBit){oe(t);const e=n.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){oe(!t);if(1!==n.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");oe(!t);if(0!==n.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*q(2,e):6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?q(2,e):null)(n.readBits(4));if(!s)return null;oe(this.audioInfo);const a=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(n.readBits(4),this.audioInfo.sampleRate);if(!a)return null;n.readBits(4),n.readBits(3);if(0!==n.readBits(1))return null;const o=(e=>{let t=0;const i=new Bt(Tl(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],n=t-1,s=new Bt(Tl(e,n)),a=8-t-1;for(let o=0;o<a;o++)r.unshift(i.readBits(1));for(let o=0;o<n;o++)for(let e=0;e<8;e++){const t=s.readBits(1);e<2||r.unshift(t)}return r.reduce((e,t,i)=>e|t<<i,0)})(e),l=((e,t)=>"uncommon-u16"===t?Sl(e)+1:"uncommon-u8"===t?vl(e)+1:"number"===typeof t?t:(Oe(t),void oe(!1)))(e,s),c=((e,t)=>"uncommon-u16"===t?Sl(e):"uncommon-u16-10"===t?10*Sl(e):"uncommon-u8"===t?vl(e):"number"===typeof t?t:null)(e,a);if(null===c)return null;if(c!==this.audioInfo.sampleRate)return null;const u=e.filePos-i,d=vl(e);e.skip(-u),e.skip(-1);const h=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(Tl(e,u));return d!==h?null:{num:o,blockSize:l,sampleRate:c}}advanceReader(){return Y(this,null,function*(){yield this.readMetadata(),oe(null!==this.lastLoadedPos),oe(this.audioInfo);const e=this.lastLoadedPos,t=yield this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)})}}class bs{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return We}getTimeResolution(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return oe(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}})}getPacket(e,t){return Y(this,null,function*(){if(oe(this.demuxer.audioInfo),e<0)return null;const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){yield this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],n=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(n+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);yield this.demuxer.advanceReader()}}finally{i()}})}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}getPacketAtIndex(e,t){return Y(this,null,function*(){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.byteSize)}oe(this.demuxer.audioInfo);const n=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new Tr(r,"key",n,s,e,i.byteSize)})}getFirstPacket(e){return Y(this,null,function*(){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)})}}const Ts=9e4,vs=q(2,33),ws=188,Ss="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",Ps=new Set([133,134,162]),Is=new Set;class xs extends yr{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=this.reader.requestSlice(0,205);ct(e)&&(e=yield e),oe(e);const t=Tl(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=ws;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,n=!1,s=!1;for(;;){const e=yield this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=yield this.readSection(i,!0,!s);if(!t)break;const a=3,o=32;let l=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i);l=2===e.readBits(8)}}if(0!==t.pid||n)if(t.pid!==r&&!l||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=Bs(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(yield this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new As(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,yield r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=$t(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];oe(t);const i=Jt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const n=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;n>0&&s>0&&(n>s?(e.info.squarePixelWidth=Math.round(e.info.width*n/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/n))),e.info.colorSpace={primaries:ye[i.colourPrimaries],transfer:Te[i.transferCharacteristics],matrix:we[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=ni(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===Lt.SPS_NUT).nalUnits[0];oe(t);const i=ri(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:ye[i.colourPrimaries],transfer:Te[i.transferCharacteristics],matrix:we[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:tr({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(yield r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=yl.tempFromBytes(r.suppliedPacket.data),i=ms(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=_t[i.channelConfiguration],e.info.sampleRate=Et[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=Cl(yl.tempFromBytes(r.suppliedPacket.data)),i=fr(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=kr(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=Ci(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=xi[t.acmod]+t.lfeon,e.info.sampleRate=Mt[t.fscod]}else if("eac3"===e.info.codec){const t=_i(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=Ri(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Fi(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=qi(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:rr({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const n=e.readBits(10),l=e.pos+8*n;let c=!1;for(;e.pos<l;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(5===t&&i>=4){const t=e.readBits(32);c||(c=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=l;8*(r+a)-e.pos>o;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),n=e.pos+8*r;let s=!1,a=!1,o=!1;for(;e.pos<n;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(106===t)s=!0;else if(122===t||204===t)a=!0;else if(123===t)o=!0;else if(5===t&&i>=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let l=null;const u=c&&Ps.has(t)?130:t;switch(u){case 27:case 36:l={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",l={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:a?l={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?l={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(l={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:Is.has(t)||(Pt._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),Is.add(t))}l&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:l,referencePesPackets:[]})}s=!0}else{const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+a)-e.pos>o;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");n=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!n)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const a of this.elementaryStreams)a.initialized&&("video"===a.info.type?this.trackBackingEntries.push(new _s(a)):this.trackBackingEntries.push(new Rs(a)))}))()})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackingEntries})}getMetadataTags(){return Y(this,null,function*(){return{}})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(yield Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null}))))})}readSection(e,t,i=!1){return Y(this,null,function*(){let r=e,n=e;const s=[];let a,o=0,l=null,c=!0,u=0;for(;;){const e=yield this.readPacket(n);if(n+=this.packetStride,!e)break;if(l){if(e.pid!==l.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;l=e}const a=!!(2&e.adaptationFieldControl),d=!!(1&e.adaptationFieldControl);let h=0;if(a&&(h=1+e.body[0],e===l&&h>1&&(u=e.body[1]>>6&1)),d&&(0===h?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(h)),o+=e.body.byteLength-h)),r=n,!t&&o>=64){c=!1;break}if(-1!==_e(this.sectionEndPositions,r,e=>e)){c=!1;break}}if(c){const e=Re(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!l)return null;if(1===s.length)a=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);a=new Uint8Array(e);let t=0;for(const i of s)a.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:l.pid,payload:a,randomAccessIndicator:u}})}readPacketHeader(e){return Y(this,null,function*(){let t=this.reader.requestSlice(e,4);if(ct(t)&&(t=yield t),!t)return null;if(71!==vl(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=Sl(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:vl(t)>>4&3}})}readPacket(e){return Y(this,null,function*(){let t=this.reader.requestSlice(e,ws);if(ct(t)&&(t=yield t),!t)return null;const i=Tl(t,ws);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}})}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=vs-t?-vs:vs}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e<t?e+i:e}}const Cs=(e,t,i)=>{if(t.payload.byteLength<3)return null;const r=new Bt(t.payload);if(1!==r.readBits(24))return null;const n=r.readBits(8);if(r.skipBits(16),188===n||190===n||191===n||240===n||241===n||255===n||242===n||248===n)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let a=null;if(2===s||3===s)a=0,r.skipBits(4),a+=r.readBits(3)*(1<<30),r.skipBits(1),a+=32768*r.readBits(15),r.skipBits(1),a+=r.readBits(15),a=e.normalizeTimestamp(a);else if(i)throw new Error(Ss);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:a,randomAccessIndicator:t.randomAccessIndicator}},Bs=(e,t,i)=>{oe(null!==t.endPos);const r=Cs(e,t,i);if(!r)return null;const n=new Bt(t.payload);n.skipBits(32);const s=n.readBits(16);n.skipBits(16);const a=n.readBits(8),o=n.pos+8*a;n.pos=o;const l=o/8;oe(Number.isInteger(l));const c=t.payload.subarray(l,s>0?6+s:t.payload.byteLength);return V(H({},r),{data:c})};class Es{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,oe(r instanceof Es),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return We}getDisposition(){return V(H({},Ct),{primary:!1})}getTimeResolution(){return Ts}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new Tr(i.metadataOnly?br:e.data,r,e.pts/Ts,Math.max(t/Ts,0),e.sequenceNumber,e.data.byteLength)}getFirstPacket(e){return Y(this,null,function*(){const t=this.elementaryStream.firstSection;oe(t);const i=Bs(this.elementaryStream.demuxer,t,!0);oe(i);const r=new As(this.elementaryStream,i),n=new Ms(this,r),s=yield n.readNext();if(!s)return null;const a=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(a,n),this.packetSectionStarts.set(a,s.packet.sectionStartPos),a})}getNextPacket(e,t){return Y(this,null,function*(){let i=this.packetBuffers.get(e);if(i){const r=yield i.readNext();if(!r)return null;this.packetBuffers.delete(e);const n=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(n,i),this.packetSectionStarts.set(n,r.packet.sectionStartPos),n}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const n=this.elementaryStream.demuxer,s=yield n.readSection(r,!0);oe(s);const a=Bs(n,s,!0);oe(a);const o=new As(this.elementaryStream,a);i=new Ms(this,o);const l=e.sequenceNumber;for(;;){const e=yield i.readNext();if(!e)return null;if(e.packet.sequenceNumber>l){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}})}getNextKeyPacket(e,t){return Y(this,null,function*(){let i=e;for(;;){if(i=yield this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}})}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}doPacketLookup(e,t,i){return Y(this,null,function*(){var r,n,s,a,o,l;const c=He(e*Ts),u=this.elementaryStream.demuxer,{reader:d,seekChunkSize:h}=u,f=this.elementaryStream.pid,m=(e,t,i)=>Y(this,null,function*(){let r=e;for(;r<t;){const e=yield u.readPacketHeader(r);if(!e)return null;if(e.pid===f&&1===e.payloadUnitStartIndicator){const e=yield u.readSection(r,i);if(!e)return null;const t=Cs(u,e,!1);if(t&&null!==t.pts)return{pesPacketHeader:t,section:e}}r+=u.packetStride}return null}),p=this.elementaryStream.firstSection;oe(p);const g=Cs(u,p,!0);if(oe(g),c<g.pts)return null;let k;const y=this.elementaryStream.referencePesPackets,b=Re(y,c,e=>e.pts),T=-1!==b?y[b]:null;if(T&&c-T.pts<45e3)k=T.sectionStartPos;else{let e=0;if(null!==d.fileSize){const t=Math.ceil(d.fileSize/h);if(t>1){let i=0,r=t-1;for(e=i;i<=r;){const t=Math.floor((i+r)/2),n=Ke(t*h,u.packetStride)+g.sectionStartPos,s=n+h,a=yield m(n,s,!1);a?a.pesPacketHeader.pts<=c?(e=t,i=t+1):r=t-1:r=t-1}}}k=Ke(e*h,u.packetStride)+g.sectionStartPos}const v=yield m(k,null!=(r=d.fileSize)?r:1/0,!1);let w=null!=(n=null==v?void 0:v.pesPacketHeader)?n:null;w||(w=g);const S=this.getReorderSize(),P=(e,t)=>Y(this,null,function*(){var r,n;const s=yield u.readSection(e,!0);oe(s);const a=Bs(u,s,!0);oe(a);const o=new As(this.elementaryStream,a),l=new Ms(this,o);for(;;){if((null!=(n=null==(r=ce(l.presentationOrderPackets))?void 0:r.pts)?n:-1/0)>=c)break;if(!(yield l.readNextPacket()))break}const d=Ne(l.presentationOrderPackets,t);if(-1===d)return null;const h=l.presentationOrderPackets[d],f=0===d?0:h.pts-l.presentationOrderPackets[d-1].pts;for(;l.decodeOrderPackets[0]!==h;)l.decodeOrderPackets.shift();l.lastDuration=f;const m=yield l.readNext();oe(m);const p=this.createEncodedPacket(m.packet,m.duration,i);return this.packetBuffers.set(p,l),this.packetSectionStarts.set(p,m.packet.sectionStartPos),p});if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=w.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){if(e.pts>c)break e;w=e,Fs(this.elementaryStream,w);break}}}e+=u.packetStride}}e:for(let e=0;e<S+1;e++){let e=w.sectionStartPos-u.packetStride;for(;e>=u.packetOffset;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){w=e;break}}}e-=u.packetStride}}return P(w.sectionStartPos,e=>e.pts<=c)}{let e=k,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let r=null;const n=e<=g.sectionStartPos;let k,y=null;if(n)k=g,y=p;else{const t=yield m(e,null!=(s=d.fileSize)?s:1/0,i);k=null!=(a=null==t?void 0:t.pesPacketHeader)?a:null,y=null!=(o=null==t?void 0:t.section)?o:null}let b=!1,T=0;e:for(;k&&!(null!==t&&k.sectionStartPos>=t);){if(k.pts<=c){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===k.randomAccessIndicator;else{oe(y);const t=Bs(u,y,!0);oe(t);const i=new As(this.elementaryStream,t);yield i.markNextPacket(),e=1===(null==(l=i.suppliedPacket)?void 0:l.randomAccessIndicator)}e&&(r=k)}if(k.pts>c&&(b=!0),b&&(T++,T>S))break;let e=k.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,i);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){k=e,y=t,Fs(this.elementaryStream,k);break}}}e+=u.packetStride}}if(r){let e=r;if(0===T)e:for(let r=0;r<S;r++){let t=e.sectionStartPos-u.packetStride;for(;t>=u.packetOffset;){const r=yield u.readPacketHeader(t);if(!r)break e;if(r.pid===f&&1===r.payloadUnitStartIndicator){const r=yield u.readSection(t,i);if(r){const t=Cs(u,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=u.packetStride}}const t=yield P(e.sectionStartPos,e=>e.pts<=c&&1===e.randomAccessIndicator);return oe(t),t}if(n)return null;t=e,e=Math.max(Ke(e-g.sectionStartPos-h,u.packetStride)+g.sectionStartPos,g.sectionStartPos)}}})}}class _s extends Es{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}getColorSpace(){return Y(this,null,function*(){return this.elementaryStream.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return!1})}getDecoderConfig(){return Y(this,null,function*(){return oe(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Rs extends Es{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){return oe(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const Fs=(e,t)=>{const i=e.referencePesPackets,r=Re(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const n=i[r];if(t.pts<=n.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-n.sectionStartPos<s)return!1;if(r<i.length-1){const e=i[r+1];if(e.pts<t.pts)return!1;if(e.sectionStartPos-t.sectionStartPos<s)return!1}}return i.splice(r+1,0,t),!0};class As{constructor(e,t){this.currentPos=0,this.pesPackets=[],this.currentPesPacketIndex=0,this.currentPesPacketPos=0,this.endPos=0,this.lastSuppliedPesPacket=null,this.nextPts=null,this.suppliedPacket=null,this.elementaryStream=e,this.pid=e.pid,this.demuxer=e.demuxer,this.startingPesPacket=t}ensureBuffered(e){const t=this.endPos-this.currentPos;return t>=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return oe(e),e}bufferData(e){return Y(this,null,function*(){const t=this.endPos+e;for(;this.endPos<t;){let e;if(0===this.pesPackets.length)e=this.startingPesPacket;else{let t=ce(this.pesPackets).sectionEndPos;for(oe(null!==t);;){const i=yield this.demuxer.readPacketHeader(t);if(!i)return;if(i.pid===this.pid){const i=yield this.demuxer.readSection(t,!0);if(!i)return;const r=Bs(this.demuxer,i,!1);if(r){e=r;break}}t+=this.demuxer.packetStride}}this.pesPackets.push(e),this.endPos+=e.data.byteLength}})}readBytes(e){const t=this.getCurrentPesPacket(),i=this.currentPos-this.currentPesPacketPos,r=i+e;if(this.currentPos+=e,r<=t.data.byteLength)return t.data.subarray(i,r);const n=new Uint8Array(e);n.set(t.data.subarray(i));let s=t.data.byteLength-i;for(;;){this.advanceCurrentPacket();const t=this.getCurrentPesPacket(),i=e-s;if(i<=t.data.byteLength){n.set(t.data.subarray(0,i),s);break}n.set(t.data,s),s+=t.data.byteLength}return n}readU8(){let e=this.getCurrentPesPacket();const t=this.currentPos-this.currentPesPacketPos;return this.currentPos++,t<e.data.byteLength?e.data[t]:(this.advanceCurrentPacket(),e=this.getCurrentPesPacket(),e.data[0])}seekTo(e){if(e!==this.currentPos){if(e<this.currentPos)for(;e<this.currentPesPacketPos;){this.currentPesPacketIndex--;const e=this.getCurrentPesPacket();this.currentPesPacketPos-=e.data.byteLength}else for(;;){const t=this.getCurrentPesPacket();if(e<this.currentPesPacketPos+t.data.byteLength)break;this.currentPesPacketPos+=t.data.byteLength,this.currentPesPacketIndex++}this.currentPos=e}}skip(e){this.seekTo(this.currentPos+e)}advanceCurrentPacket(){this.currentPesPacketPos+=this.getCurrentPesPacket().data.byteLength,this.currentPesPacketIndex++}markNextPacket(){return Y(this,null,function*(){var e,t,i;oe(!this.suppliedPacket);const r=this.elementaryStream;if("video"===r.info.type){const e=r.info.codec,t=1024;if("avc"!==e&&"hevc"!==e)throw new Error("Unhandled.");const i="avc"===e?1:2;let n=null,s=!1,a=0;for(;;){let r=this.ensureBuffered(t);if(ct(r)&&(r=yield r),0===r)break;const o=this.currentPos,l=this.readBytes(r),c=l.byteLength;let u=0;for(;u<c;){const t=l.indexOf(0,u);if(-1===t||t>=c)break;u=t;const r=o+u;if(u+3>=c){this.seekTo(r);break}const d=l[u+1],h=l[u+2],f=l[u+3];let m=0;if(0===d&&0===h&&1===f?m=4:0===d&&1===h&&(m=3),0===m){u++;continue}const p=r;null!=n||(n=p);const g=u+m,k=g+i,y=6;if(k+("avc"===e?y:1)>c){this.seekTo(r);break}const b=l[g];let T,v,w;if("avc"===e)T=Ht(b),v=T===Nt.NON_IDR_SLICE||T===Nt.SLICE_DPA||T===Nt.IDR,w=T===Nt.SEI||T===Nt.SPS||T===Nt.PPS||T===Nt.AUD;else{T=ii(b);if(((1&b)<<5|l[g+1]>>3)>0){u+=m;continue}v=T<=Lt.RASL_R||T>=Lt.BLA_W_LP&&T<=21,w=T>=Lt.VPS_NUT&&T<=37||T===Lt.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let S=!1;if(v){let t;if("avc"===e){const e=l.subarray(k,k+y),i=ue(new Bt(e));t=!s||i<=a,a=i}else t=l[k]>>7===1;t&&(s?S=!0:s=!0)}else w&&s&&(S=!0);if(S){const e=p-n;return this.seekTo(n),this.supplyPacket(e,0)}u+=m}if(r<t)break}if(null!==n&&this.endPos>n){const e=this.endPos-n;return this.seekTo(n),this.supplyPacket(e,0)}}else{const n=r.info.codec,s=128;for(;;){let a=this.ensureBuffered(s);ct(a)&&(a=yield a);const o=this.currentPos;for(;this.currentPos-o<a;){const s=this.readU8();if("aac"===n){if(255!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(9);if(ct(t)&&(t=yield t),t<9)return;const i=this.readBytes(9),n=ms(yl.tempFromBytes(i));if(n){this.seekTo(e);let t=this.ensureBuffered(n.frameLength);return ct(t)&&(t=yield t),this.supplyPacket(t,Math.round(9216e4/r.info.sampleRate))}this.seekTo(e+1)}else{if("mp3"!==n){if("ac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(ct(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=i[4]>>6,a=63&i[4];if(3===n||a>37){this.seekTo(e+1);continue}const o=Bi[3*a+n];oe(void 0!==o),this.seekTo(e),t=this.ensureBuffered(o),ct(t)&&(t=yield t);const l=Math.round(13824e4/r.info.sampleRate);return this.supplyPacket(t,l)}if("eac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(ct(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=2*(((7&i[2])<<8|i[3])+1),a=3===i[4]>>6?3:i[4]>>4&3,o=Ei[a];this.seekTo(e),t=this.ensureBuffered(n),ct(t)&&(t=yield t);const l=256*o,c=Math.round(l*Ts/r.info.sampleRate);return this.supplyPacket(t,c)}if("dts"===n){if(127!==s&&100!==s)continue;this.skip(-1);const n=this.currentPos;let a=this.ensureBuffered(18);if(ct(a)&&(a=yield a),a<18)return;const o=this.readBytes(18),l=Hi(o);let c=l?null:Vi(o);if(!l&&!c){this.seekTo(n+1);continue}if(c&&!c.asset){this.seekTo(n);const t=Math.min(c.frameSize,4096);let i=this.ensureBuffered(t);ct(i)&&(i=yield i),c=null!=(e=Vi(this.readBytes(i)))?e:c}let u=l?l.frameSize:c.frameSize;if(l){let e=4*Math.ceil(l.frameSize/4);for(;;){this.seekTo(n);const t=e+10;let i=this.ensureBuffered(t);if(ct(i)&&(i=yield i),i<t)break;this.seekTo(n+e);const r=Vi(this.readBytes(10));if(!r)break;e+=r.frameSize,u=e}}const d=null!=(i=null==l?void 0:l.sampleCount)?i:null==(t=c.asset)?void 0:t.sampleCount;if(void 0===d){this.seekTo(n+1);continue}this.seekTo(n),a=this.ensureBuffered(u),ct(a)&&(a=yield a);const h=Math.round(d*Ts/r.info.sampleRate);return this.supplyPacket(a,h)}throw new Error("Unhandled.")}{if(255!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(4);if(ct(t)&&(t=yield t),t<4)return;const i=this.readBytes(4),n=me(i).getUint32(0),a=fr(n,null);if(a.header){this.seekTo(e);let t=this.ensureBuffered(a.header.totalSize);ct(t)&&(t=yield t);const i=a.header.audioSamplesInFrame*Ts/r.info.sampleRate;return this.supplyPacket(t,Math.round(i))}this.seekTo(e+1)}}}if(a<s)break}}})}supplyPacket(e,t){const i=this.getCurrentPesPacket();let r;if(this.lastSuppliedPesPacket===i)oe(null!==this.nextPts),r=this.nextPts;else{if(null===i.pts)throw new Error(Ss);r=i.pts,Fs(this.elementaryStream,i)}this.lastSuppliedPesPacket=i,this.nextPts=r+t;const n=i.sectionStartPos,s=n+(this.currentPos-this.currentPesPacketPos),a=this.readBytes(e);let o=i.randomAccessIndicator;if(0===o&&!this.elementaryStream.canBeTrustedWithKeyPackets)if("audio"===this.elementaryStream.info.type)o=1;else if(this.elementaryStream.info.decoderConfig){const e="key"===wi(this.elementaryStream.info.codec,this.elementaryStream.info.decoderConfig,a);o=Number(e)}this.suppliedPacket={pts:r,data:a,sequenceNumber:s,sectionStartPos:n,randomAccessIndicator:o},this.pesPackets.splice(0,this.currentPesPacketIndex),this.currentPesPacketIndex=0}}class Ms{constructor(e,t){this.decodeOrderPackets=[],this.reorderBuffer=[],this.presentationOrderPackets=[],this.reachedEnd=!1,this.lastDuration=0,this.backing=e,this.context=t,this.reorderSize=e.getReorderSize(),oe(this.reorderSize>=0)}readNext(){return Y(this,null,function*(){if(0===this.decodeOrderPackets.length){if(!(yield this.readNextPacket()))return null}yield this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(oe(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}})}readNextPacket(){return Y(this,null,function*(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||(yield this.context.markNextPacket()),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)})}ensureCurrentPacketHasNext(){return Y(this,null,function*(){const e=this.decodeOrderPackets[0];for(oe(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(yield this.readNextPacket()))break}})}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;i<this.reorderBuffer.length;i++)this.reorderBuffer[i].pts<this.reorderBuffer[e].pts&&(e=i);const t=this.reorderBuffer[e];this.presentationOrderPackets.push(t),this.reorderBuffer.splice(e,1)}}flushReorderBuffer(){this.reorderBuffer.sort((e,t)=>e.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const Ds="application/vnd.apple.mpegurl",Ns="#EXT-X-STREAM-INF:",Os="#EXT-X-I-FRAME-STREAM-INF:",Ls="#EXT-X-MEDIA:",zs="#EXTINF:",Us="#EXT-X-MAP:",qs="#EXT-X-KEY:",Ws="#EXT-X-MEDIA-SEQUENCE:",Hs="#EXT-X-BYTERANGE:",Vs="#EXT-X-PROGRAM-DATE-TIME:",js="#EXT-X-TARGETDURATION:",Ks="#EXT-X-PLAYLIST-TYPE:",Xs=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class $s{constructor(e){this._attributes={};let t="",i="",r=!1,n=!1;for(let s=0;s<e.length;s++){const a=e[s];'"'===a?n=!n:"="!==a||r||n?","!==a||n?r?i+=a:t+=a:(t&&(this._attributes[t.trim().toLowerCase()]=i),t="",i="",r=!1):r=!0}t&&(this._attributes[t.trim().toLowerCase()]=i)}get(e){var t;return null!=(t=this._attributes[e.toLowerCase()])?t:null}getAsNumber(e){const t=this.get(e);if(null===t)return null;const i=Number(t);return Number.isFinite(i)?i:null}merge(e){Object.assign(this._attributes,e._attributes)}}class Gs{constructor(e,t,i){this.nextInputCacheAge=0,this.inputCache=[],this.trackBackingsPromise=null,this.firstSegment=null,this.firstSegmentFirstTimestamps=new WeakMap,this.firstTimestampCache=new WeakMap,this.input=e,this.path=t,this.trackDeclarations=i}getDurationFromMetadata(e){return Y(this,null,function*(){const t=yield this.getSegmentAt(1/0,{skipLiveWait:e.skipLiveWait});return t?t.timestamp+t.duration:null})}getUnixTimeForTimestamp(e){return Y(this,null,function*(){let t=yield this.getSegmentAt(e,{});if(null!=t||(t=yield this.getFirstSegment({})),!t||null===t.unixEpochTimestamp)return null;const i=e-t.timestamp;return t.unixEpochTimestamp+i})}getTrackBackings(){return Y(this,null,function*(){var e;return null!=(e=this.trackBackingsPromise)?e:this.trackBackingsPromise=(()=>Y(this,null,function*(){const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=gt(e,e=>"video"===e.getType())+1;e.push(new Ys(this,t,i))}else if("audio"===t.type){const i=gt(e,e=>"audio"===e.getType())+1;e.push(new Js(this,t,i))}}else{if(this.firstSegment=yield this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=yield t.getTracks();for(const r of i)if("video"===r.type){const t=gt(e,e=>"video"===e.getType())+1;e.push(new Ys(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=gt(e,e=>"audio"===e.getType())+1;e.push(new Js(this,{id:e.length+1,type:"audio"},t))}}return e}))()})}getFirstTimestampForInput(e){return Y(this,null,function*(){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=yield e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i})}getMediaOffset(e,t){return Y(this,null,function*(){var i;const r=null!=(i=e.firstSegment)?i:e;let n;if(this.firstSegmentFirstTimestamps.has(r))n=this.firstSegmentFirstTimestamps.get(r);else{const e=this.getInputForSegment(r);n=yield this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(r,n)}if(r===e)return r.timestamp-n;const s=yield this.getFirstTimestampForInput(t),a=e.timestamp-r.timestamp,o=s-n-a;return Math.abs(o)<=Math.min(.25,a)?r.timestamp-n:e.timestamp-s})}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class Qs{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>Y(this,null,function*(){var e,t;if(null!=(e=this.segmentedInput).firstSegment||(e.firstSegment=yield this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let i=this.segmentedInput.firstSegment,r=null;for(;i;){const e=this.segmentedInput.getInputForSegment(i);if(r=null!=(t=(yield e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number))?t:null,r)break;i=yield this.segmentedInput.getNextSegment(i,{})}if(!r)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=r,this.firstSegment=i}))()}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}getHasOnlyKeyPackets(){return this.delegate(()=>{var e,t,i;return null!=(i=null==(t=(e=this.firstInputTrack._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:null})}getPairingMask(){return BigInt("1")}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}isRelativeToUnixEpoch(){return Y(this,null,function*(){return yield this.hydrate(),oe(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp})}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}createAdjustedPacket(e,t,i){return Y(this,null,function*(){oe(e.sequenceNumber>=0),oe(this.segmentedInput.firstSegment);const r=yield this.segmentedInput.getMediaOffset(t,i.input),n=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:je(e.timestamp+r,yield i.getTimeResolution()),sequenceNumber:Math.floor(1e8*n)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s})}getFirstPacket(e){return Y(this,null,function*(){var t;yield this.hydrate(),oe(this.firstInputTrack),oe(this.firstSegment);let i=this.firstInputTrack,r=this.firstSegment;for(;;){if(i){const t=yield i._backing.getFirstPacket(e);if(t)return this.createAdjustedPacket(t,r,i)}if(r=yield this.segmentedInput.getNextSegment(r,{skipLiveWait:e.skipLiveWait}),!r)break;const n=this.segmentedInput.getInputForSegment(r);i=null!=(t=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number))?t:null}return null})}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}_getNextInternal(e,t,i){return Y(this,null,function*(){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const n=i?yield r.track._backing.getNextKeyPacket(r.sourcePacket,t):yield r.track._backing.getNextPacket(r.sourcePacket,t);if(n)return this.createAdjustedPacket(n,r.segment,r.track);let s=r.segment;for(;;){const e=yield this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),n=(yield i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!n){s=e;continue}const a=yield n._backing.getFirstPacket(t);return a?this.createAdjustedPacket(a,e,n):null}})}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}_getPacketInternal(e,t,i){return Y(this,null,function*(){let r=yield this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(yield this.hydrate();r;){const n=this.segmentedInput.getInputForSegment(r),s=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const a=yield this.segmentedInput.getMediaOffset(r,n),o=e-a,l=i?yield s._backing.getKeyPacket(o,t):yield s._backing.getPacket(o,t);if(l)return this.createAdjustedPacket(l,r,s);r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null})}}class Ys extends Qs{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}getColorSpace(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())})}canBeTransparent(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())})}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}class Js extends Qs{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}ft();const Zs=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class ea extends vt{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}getSizeOrNull(){return Y(this,null,function*(){var e;if(this._disposed)throw new gl;return null!=(e=this._sizePromise)?e:this._sizePromise=(()=>Y(this,null,function*(){let e=this._getFileSize();return void 0!==e||(yield this._read(0,1,0,Zs),e=this._getFileSize(),oe(void 0!==e)),e}))()})}getSize(){return Y(this,null,function*(){if(this._disposed)throw new gl;const e=yield this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e})}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new ga(this,e,t)}_dispatchRead(e,t){var i;null==(i=this.onread)||i.call(this,e,t),this._emit("read",{start:e,end:t})}ref(){return new ta(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class ta{constructor(e){var t;if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),null==(t=e._refFinalizationRegistry)||t.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){var e;if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const t=this.source;oe(t._refCount>0),t._decrementRefCount(),null==(e=t._refFinalizationRegistry)||e.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class ia extends ea{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof ea||e instanceof ta))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof ea?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return ct(t)?t.then(i):i(t)}}const ra=(e,t)=>e.path===t.path;class na extends ia{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof ea?e.ref():e;return this._root=t,this._rootRequest=null,t};ct(e)?this._rootRequest=e.then(t):(t(e),oe(this._root))}if(this._rootRequest)return this._rootRequest.then(n=>n.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const sa="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class aa extends ea{constructor(e,t={}){var i;if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!mt(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new pa({maxCacheSize:null!=(i=t.maxCacheSize)?i:8*q(2,20),maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),null==sa||sa.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:ma.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}_runWorker(e){return Y(this,null,function*(){oe(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!it()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),null==sa||sa.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos<e.targetPos&&!e.aborted;)if(t){const{done:i,value:r}=yield t.read();if(i)throw this._orchestrator.onWorkerFinished(e),new Error("Blob reader stopped unexpectedly before all requested data was read.");if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+r.length),this._orchestrator.supplyWorkerData(e,r)}else{const t=yield this._blob.slice(e.currentPos,e.targetPos).arrayBuffer();if(e.aborted)break;this._dispatchRead(e.currentPos,e.currentPos+t.byteLength),this._orchestrator.supplyWorkerData(e,new Uint8Array(t))}this._orchestrator.signalWorkerStoppedRunning(e),e.aborted&&(yield null==t?void 0:t.cancel())})}_dispose(){this._orchestrator.dispose()}}const oa=.5*q(2,20),la=(e,t,i)=>{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch(r){}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return Pt._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(q(2,e-2),16)},ca=new Set;class ua extends ia{constructor(e,t={}){var i,r,n,s;if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!mt(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new ua(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=null!=(i=t.getRetryDelay)?i:la,this._requestInit=H({},t.requestInit);let a=null;if(null==(r=t.requestInit)?void 0:r.headers){const e=H({},Je(t.requestInit.headers)),i=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==i&&(a=e[i],delete e[i],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){null!=a||(a=t);const i=new Request(e);i.headers.delete("Range"),this._url=i}}if(null!==a){const e=ha(a);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new pa({maxCacheSize:null!=(n=t.maxCacheSize)?n:64*q(2,20),maxWorkerCount:null!=(s=t.parallelism)?s:2,runWorker:this._runWorker.bind(this),prefetchProfile:ma.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){var e;if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const t=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===t?null!==this._length?this._length:null:qe(t-this._offset,0,null!=(e=this._length)?e:1/0)}_read(e,t,i,r){var n;if(null!==this._length&&t>this._length)return null;const s=this._offset,a=this._sequentialBacking?this._sequentialBacking._read(s+e,s+t):this._orchestrator.read(s+e,s+t,Math.max(s+i,s),s+Math.min(r,null!=(n=this._length)?n:1/0)),o=e=>e?(e.offset-=this._offset,e):null;return ct(a)?a.then(o):o(a)}_runWorker(e){return Y(this,null,function*(){for(var t;;){const r=new AbortController,n=yield Ze(null!=(t=this._options.fetchFn)?t:fetch,this._url,Ye(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:r.signal}),this._getRetryDelay,()=>this._disposed);if(!n.ok)throw new Error(`Error fetching ${String(this._url)}: ${n.status} ${n.statusText}`);n.redirected&&(this.rootPath=n.url);e:if(null===this._orchestrator.fileSize&&(206===n.status||"basic"===n.type&&!n.headers.has("Content-Encoding"))){const t=n.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=n.headers.get("Content-Length");if(i){const t=206===n.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!n.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==n.status){if(this._sequentialBacking)return void n.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||ca.has(e.origin)||(Pt._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),ca.add(e.origin))}return void this._transitionToSequentialMode(n.body)}const s=n.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return r.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let t;try{t=yield s.read()}catch(i){if(this._disposed)throw i;const e=this._getRetryDelay(1,i,this._url);if(null!==e){Pt._error("Error while reading response stream. Attempting to resume.",i),yield Tt(1e3*e);break}throw i}if(e.aborted)continue;const{done:n,value:a}=t;if(n){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+a.length),this._orchestrator.supplyWorkerData(e,a)}}})}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const n=new ReadableStream({pull:e=>Y(this,null,function*(){for(var n;;){let a;try{a=yield t.read()}catch(s){if(this._disposed)throw s;const e=this._getRetryDelay(1,s,this._url);if(null===e)throw s;Pt._error("Error while reading response stream. Attempting to resume.",s),yield Tt(1e3*e);const a=yield Ze(null!=(n=this._options.fetchFn)?n:fetch,this._url,Ye(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!a.ok)throw new Error(`Error fetching ${String(this._url)}: ${a.status} ${a.statusText}`);if(!a.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=a.body.getReader(),r=206===a.status?0:i;continue}if(a.done)return void e.close();let o=a.value;if(r>0){const e=Math.min(r,o.length);r-=e,o=o.subarray(e)}if(0!==o.length)return i+=o.length,void e.enqueue(o)}}),cancel:()=>t.cancel()}),s=new fa(n,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const a=new Set;for(const o of this._orchestrator.workers){for(const e of o.pendingSlices)a.add(e);o.aborted=!0,o.pendingSlices.length=0}for(const o of this._orchestrator.queuedReads)for(const e of o.pendingSlices)a.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const o of a){const e=s._read(o.start,o.start+o.bytes.length);ct(e)?e.then(e=>{e?(oe(e.offset===o.start),o.resolve(e.bytes)):o.resolve(null)},e=>o.reject(e)):(oe(null===e),o.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const da=/^bytes=(\d+)-(\d*)$/,ha=e=>{const t=da.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&r<i?null:{offset:i,length:null!==r?r-i+1:null}};class fa extends ea{constructor(e,t={}){var i;if(!(e instanceof ReadableStream))throw new TypeError("stream must be a ReadableStream.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!mt(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");super(),this._reader=null,this._cache=[],this._pendingSlices=[],this._currentIndex=0,this._targetIndex=0,this._maxRequestedIndex=0,this._endIndex=null,this._pulling=!1,this._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. With ReadableStreamSource, you must access the data more sequentially or increase the size of its cache.",this._stream=e,this._maxCacheSize=null!=(i=t.maxCacheSize)?i:32*q(2,20),this._handleUnhandledError=t.handleUnhandledError}_getFileSize(){return this._endIndex}_read(e,t){if(null!==this._endIndex&&t>this._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=Re(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let n=e;const s=new Uint8Array(t-e);if(-1!==i)for(let c=i;c<this._cache.length;c++){const i=this._cache[c];if(i.start>=t)break;const r=Math.max(e,i.start);r>n&&this._throwDueToCacheMiss();const a=Math.min(t,i.end);r<a&&(s.set(i.bytes.subarray(r-i.start,a-i.start),r-e),n=a)}if(n===t)return{bytes:s,view:me(s),offset:e};this._currentIndex>n&&this._throwDueToCacheMiss();const{promise:a,resolve:o,reject:l}=Ae();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:l}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),a}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}_pull(){return Y(this,null,function*(){for(null!=this._reader||(this._reader=this._stream.getReader());this._currentIndex<this._targetIndex&&!this._disposed;){const{done:e,value:t}=yield this._reader.read();if(e){for(const e of this._pendingSlices)e.resolve(null);this._pendingSlices.length=0,this._endIndex=this._currentIndex;break}const i=this._currentIndex,r=this._currentIndex+t.byteLength;this._dispatchRead(i,r);for(let n=0;n<this._pendingSlices.length;n++){const e=this._pendingSlices[n],s=Math.max(i,e.start),a=Math.min(r,e.end);s<a&&(e.bytes.set(t.subarray(s-i,a-i),s-e.start),a===e.end&&(e.resolve({bytes:e.bytes,view:me(e.bytes),offset:e.start}),this._pendingSlices.splice(n,1),n--))}for(this._cache.push({start:i,end:r,bytes:t,view:me(t),age:0});this._cache.length>0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1})}_dispose(){var e;for(const t of this._pendingSlices)t.reject(new gl);this._pendingSlices.length=0,this._cache.length=0,null==(e=this._reader)||e.cancel()}}const ma={fileSystem:(e,t)=>{const i=q(2,16);return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=q(2,16);e=Math.max(0,Math.floor((e-r)/r)*r);for(const n of i){const i=8*q(2,20),r=Math.max((n.startPos+n.targetPos)/2,n.targetPos-i);if(dt(e,t,r,n.targetPos)){const e=n.targetPos-n.startPos,r=Math.ceil((e+1)/i)*i,s=q(2,Math.ceil(Math.log2(e+1))),a=Math.min(s,r);t=Math.max(t,n.startPos+a)}}return{start:e,end:t=Math.max(t,e+oa)}}};class pa{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){var n;oe(!this.disposed);const s=this.options.prefetchProfile(e,t,this.workers),a=Math.max(s.start,i),o=Math.min(s.end,null!=(n=this.fileSize)?n:1/0,r);oe(a<=e&&t<=o);let l=null;const c=Re(this.cache,e,e=>e.start),u=-1!==c?this.cache[c]:null;u&&u.start<=e&&t<=u.end&&(u.age=this.nextAge++,l={bytes:u.bytes,view:u.view,offset:u.start});const d=Re(this.cache,a,e=>e.start),h=l?null:new Uint8Array(t-e);let f=0,m=a;const p=[];if(-1!==d){for(let i=d;i<this.cache.length;i++){const r=this.cache[i];if(r.start>=o)break;if(r.end<=a)continue;const n=Math.max(a,r.start),s=Math.min(o,r.end);if(oe(n<=s),m<n&&p.push({start:m,end:n}),m=s,h){const i=Math.max(e,r.start),n=Math.min(t,r.end);if(i<n){const t=i-e;h.set(r.bytes.subarray(i-r.start,n-r.start),t),t===f&&(f=n-e)}}r.age=this.nextAge++}m<o&&p.push({start:m,end:o})}else p.push({start:a,end:o});if(h&&f>=h.length&&(l={bytes:h,view:me(h),offset:e}),0===p.length)return oe(l),l;const{promise:g,resolve:k,reject:y}=Ae(),b=[];for(const v of p){const i=Math.max(e,v.start),r=Math.min(t,v.end);i===v.start&&r===v.end?b.push(v):i<r&&b.push({start:i,end:r})}const T=h&&{start:e,bytes:h,holes:b,resolve:k,reject:y};e:for(const v of p){for(const i of this.workers){if(this.checkHoleAgainstWorker(i,v,T?[T]:[])){this.checkQueuedReadsAgainstWorker(i);continue e}}const e=v.end<o||null!==this.fileSize,t=this.createWorker(v.start,v.end,e);if(t)T&&(t.pendingSlices=[T]),this.runWorker(t);else{let t=Re(this.queuedReads,v.start,e=>e.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&v.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,v.end),i.strictTarget&&(i.strictTarget=e),T&&i.pendingSlices.push(T)):(t++,i={hole:{start:v.start,end:v.end},strictTarget:e,pendingSlices:T?[T]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1<this.queuedReads.length;){const e=this.queuedReads[t+1];if(e.hole.start>i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return l?g.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(oe(h),l=g.then(t=>t&&{bytes:t,view:me(t),offset:e})),l}checkHoleAgainstWorker(e,t,i){const r=q(2,17);if(dt(t.start-r,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t<i.length;t++){const r=i[t];e.pendingSlices.includes(r)||e.pendingSlices.push(r)}return e.running||this.runWorker(e),!0}return!1}checkQueuedReadsAgainstWorker(e){let t=!1;for(let i=0;i<this.queuedReads.length;i++){const r=this.queuedReads[i];if(this.checkHoleAgainstWorker(e,r.hole,r.pendingSlices))this.queuedReads.splice(i,1),i--,t=!0;else if(t)break}}createWorker(e,t,i){var r,n;if(this.workers.length>=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i<this.workers.length;i++){const r=this.workers[i];r.running||0!==r.pendingSlices.length||e&&!(r.age<e.age)||(t=i,e=r)}if(!e)return null;oe(null!==t),oe(0===e.pendingSlices.length),this.workers.splice(t,1),null==(n=(r=this.options).onIdleWorkerRemoved)||n.call(r,e)}const s={startPos:e,currentPos:e,targetPos:t,strictTarget:i,running:!1,aborted:this.disposed,pendingSlices:[],age:this.nextAge++};return this.workers.push(s),s}runWorker(e){oe(!e.running),oe(e.currentPos<e.targetPos),e.running=!0,e.age=this.nextAge++,this.options.runWorker(e).catch(t=>{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;r<this.queuedReads.length;r++){this.queuedReads[r].age<this.queuedReads[e].age&&(e=r)}const t=this.queuedReads[e],i=this.createWorker(t.hole.start,t.hole.end,t.strictTarget);if(!i)return;this.queuedReads.splice(e,1),i.pendingSlices=t.pendingSlices,this.runWorker(i)}})}supplyWorkerData(e,t){var i,r;oe(!e.aborted);const n=e.currentPos,s=n+t.length;this.insertIntoCache({start:n,end:s,bytes:t,view:me(t),age:this.nextAge++}),e.currentPos+=t.length,e.currentPos>e.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;a<e.pendingSlices.length;a++){const i=e.pendingSlices[a],r=Math.max(n,i.start),o=Math.min(s,i.start+i.bytes.length);r<o&&i.bytes.set(t.subarray(r-n,o-n),r-i.start);for(let e=0;e<i.holes.length;e++){const t=i.holes[e];n<=t.start&&s>t.start&&(t.start=s),t.end<=t.start&&(i.holes.splice(e,1),e--)}0===i.holes.length&&(i.resolve(i.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;a<this.workers.length;a++){const t=this.workers[a];e===t||t.running||dt(n,s,t.currentPos,t.targetPos)&&(this.workers.splice(a,1),null==(r=(i=this.options).onIdleWorkerRemoved)||r.call(i,t),a--)}}supplyFileSize(e){oe(null===this.fileSize),this.fileSize=e;for(const t of this.workers){t.targetPos=Math.min(t.targetPos,e),t.strictTarget=!0;for(let i=0;i<t.pendingSlices.length;i++){const r=t.pendingSlices[i];for(const n of r.holes)if(n.end>e){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t<this.queuedReads.length;t++){const i=this.queuedReads[t];if(i.hole.start>=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t<i.pendingSlices.length;t++){const r=i.pendingSlices[t];r.start>=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){var t,i;const r=this.workers.indexOf(e);oe(-1!==r),e.running=!1,this.workers.splice(r,1),null==(i=(t=this.options).onIdleWorkerRemoved)||i.call(t,e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const n of e.pendingSlices)n.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=Re(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=me(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i<this.cache.length;i++){const t=this.cache[i];if(e.end<=t.start)break;if(e.end>=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=me(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;i<this.cache.length;i++){const r=this.cache[i];r.age<t.age&&(e=i,t=r)}if(this.currentCacheSize-t.bytes.length<=this.options.maxCacheSize)break;this.cache.splice(e,1),this.currentCacheSize-=t.bytes.length}}dispose(){var e,t;for(const i of this.workers){for(const e of i.pendingSlices)e.reject(new gl);i.pendingSlices.length=0,i.aborted=!0,i.running||null==(t=(e=this.options).onIdleWorkerRemoved)||t.call(e,i)}for(const i of this.queuedReads)for(const e of i.pendingSlices)e.reject(new gl);this.workers.length=0,this.cache.length=0,this.queuedReads.length=0,this.disposed=!0}}class ga extends ea{constructor(e,t,i){if(super(),this._ref=null,e._disposed)throw new Error("Cannot create a slice of a disposed source.");this._baseSource=e,this._offset=t,this._length=null!=i?i:null}_getFileSize(){var e;const t=this._baseSource._getFileSize();return void 0===t?null!==this._length?this._length:void 0:null===t?null!==this._length?this._length:null:qe(t-this._offset,0,null!=(e=this._length)?e:1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const n=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return ct(n)?n.then(s):s(n)}_dispose(){var e;null==(e=this._ref)||e.free()}ref(){return null!=this._ref||(this._ref=this._baseSource.ref()),super.ref()}}var ka=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,n;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},ya=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const ba=/^0[xX][0-9a-fA-F]+$/,Ta=/^data:.*;base64,/i;class va extends Gs{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){var e;return null!=(e=this.currentUpdateSegmentsPromise)?e:this.currentUpdateSegmentsPromise=(()=>Y(this,null,function*(){try{const e=this.getRemainingWaitTimeMs();e>0&&(yield Tt(e)),this.lastSegmentUpdateTime=performance.now(),yield this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}}))()}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}updateSegments(){return Y(this,null,function*(){var e,t,i,r,n,s,a,o;let l=this.nextLines;if(this.nextLines=null,!l){const e={stack:[],error:void 0,hasError:!1};try{const t=ka(e,yield this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),i=new kl(t.source),r=yield i.requestEntireFile();oe(r),l=Ol(r,r.length,{ignore:Xs}),t.source instanceof ia&&(this.rootPath=t.source.rootPath)}catch(x){e.error=x,e.hasError=!0}finally{ya(e)}}const c=!1!==(null==(e=this.input._formatOptions.hls)?void 0:e.offsetTimestampsByDateTime);let u=!1,d=0,h=null,f=null,m=null,p=0,g=null,k=null,y=null,b=null,T=null,v=null,w=!1,S=null!=(t=ce(this.segments))?t:null;const P=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},I=e=>{p=e,S&&(oe(null!==S.sequenceNumber),S.sequenceNumber<e&&(d=S.timestamp+S.duration,g=S.firstSegment,k=S.initSegment,T=S.lastProgramDateTimeSeconds,h=null!==S.unixEpochTimestamp?S.unixEpochTimestamp+S.duration:null,S=null))};for(let C=0;C<l.length;C++){const e=l[C];if(u){if(!e.startsWith("#")){if(!S){if(null===f)throw new Error("Invalid M3U8 file; a segment must be preceded by an #EXTINF tag.");let t=m;if(t&&"AES-128"===t.method&&!t.iv){const e=new Uint8Array(Er),i=me(e);i.setUint32(8,Math.floor(p/q(2,32))),i.setUint32(12,p),t=V(H({},t),{iv:e})}const n={path:pt(this.rootPath,e),offset:null!=(i=null==b?void 0:b.offset)?i:0,length:null!=(r=null==b?void 0:b.length)?r:null},s={timestamp:d,unixEpochTimestamp:h,firstSegment:g,sequenceNumber:p,location:n,duration:f,encryption:t,initSegment:k,lastProgramDateTimeSeconds:T};null!=g||(g=s),d+=f,null!==h&&(h+=f),this.segments.push(s)}f=null,null===b?y=null:b=null,I(p+1)}if(e.startsWith(zs)){if(S){w=!0;continue}w||(null===T&&p>0&&null!==v&&(d=p*v),w=!0);const t=e.slice(8),i=t.indexOf(","),r=-1===i?t:t.slice(0,i),n=Number(r);if(!Number.isFinite(n)||n<0)throw new Error(`Invalid #EXTINF tag duration '${r}'.`);f=n}else if(e.startsWith(Us)){const t=new $s(e.slice(11)),i=t.get("uri");if(!i)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const r=t.get("byterange");let a=null;if(null!==r&&(a=P(r)),a&&null===a.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!S){const e={path:pt(this.rootPath,i),offset:null!=(n=null==a?void 0:a.offset)?n:0,length:null!=(s=null==a?void 0:a.length)?s:null};if("AES-128"===(null==m?void 0:m.method)&&!m.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");k={timestamp:d,unixEpochTimestamp:h,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:m,initSegment:null,lastProgramDateTimeSeconds:T}}f=null,null===b?y=null:b=null}else if(e.startsWith(qs)){const t=new $s(e.slice(11)),i=t.get("method");if("NONE"===i)m=null;else if("AES-128"===i){const e=t.get("uri");if(!e)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=t.get("iv");if(r){if(!ba.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Er);for(let t=0;t<Er;t++){const r=-32+t;i[t]=parseInt(e.slice(r,r+2),16)}}const n=null!=(a=t.get("keyformat"))?a:"identity";if("identity"!==n)throw new Error("For AES-128 encryption, only the 'identity' KEYFORMAT is currently supported. If you think other formats should be supported, please raise an issue.");m={method:"AES-128",keyUri:pt(this.rootPath,e),iv:i,keyFormat:n}}else{if("SAMPLE-AES"!==i&&"SAMPLE-AES-CTR"!==i)throw new Error(`Unsupported encryption method '${i}'. If you think this method should be supported, please raise an issue.`);{const e=t.get("uri");if(!e)throw new Error(`Invalid #EXT-X-KEY: ${i} requires a URI attribute.`);if("identity"===(null!=(o=t.get("keyformat"))?o:"identity"))throw new Error("For SAMPLE-AES and SAMPLE-AES-CTR encryption, the 'identity' KEYFORMAT is not supported. If you think this format should be supported, please raise an issue.");let r=null;if(Ta.test(e)){const t=e.indexOf(","),i=ht(e.slice(t+1));if(i.length>=8&&112===i[4]&&115===i[5]&&115===i[6]&&104===i[7]){const e=me(i).getUint32(0);r=vr(i.subarray(8,Math.min(e,i.length)))}}m={method:i,psshBox:r}}}}else if(e.startsWith(Ws)){const t=e.slice(22),i=Number(t);if(!Number.isInteger(i)||i<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${t}'.`);I(i)}else if(e.startsWith(Hs)){const t=P(e.slice(17));if(null===t.offset){if(null===y)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");t.offset=y}b=t,y=t.offset+t.length}else if(e.startsWith(Vs)){if(S)continue;const t=e.slice(25),i=Date.parse(t);if(!Number.isFinite(i))continue;const r=i/1e3;if(T===r)continue;if(null===T&&this.segments.length>0){const e=ce(this.segments),t=r-(e.timestamp+e.duration);for(const i of this.segments)i.unixEpochTimestamp=i.timestamp+t,c&&(i.timestamp=i.unixEpochTimestamp)}T=r,h=r,c&&(d=r)}else if("#EXT-X-DISCONTINUITY"===e)g=null;else if(e.startsWith(js)){const t=e.slice(22),i=Number(t);if(!Number.isFinite(i)||i<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${t}'.`);this.refreshInterval=i,v=i}else{if("#EXT-X-ENDLIST"===e){this.streamHasEnded=!0;break}if(e.startsWith(Ks)){"vod"===e.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==e)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");u=!0}}if(!u)throw new Error("Invalid M3U8 file; no #EXTM3U header.")})}getFirstSegment(){return Y(this,null,function*(){var e;return 0===this.segments.length&&(yield this.runUpdateSegments()),null!=(e=this.segments[0])?e:null})}getSegmentAt(e,t){return Y(this,null,function*(){0===this.segments.length&&(yield this.runUpdateSegments());let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=Re(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r<this.segments.length-1||this.streamHasEnded||i)return this.segments[r];const n=this.segments[r];if(e<n.timestamp+n.duration)return n;yield this.runUpdateSegments(),t.skipLiveWait&&(i=!0)}})}getNextSegment(e,t){return Y(this,null,function*(){const i=this.segments.indexOf(e);oe(-1!==i);const r=i+1;let n=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){if(r<this.segments.length)return this.segments[r];if(this.streamHasEnded||n)return null;yield this.runUpdateSegments(),t.skipLiveWait&&(n=!0)}})}getPreviousSegment(e){return Y(this,null,function*(){var t;const i=this.segments.indexOf(e);return oe(-1!==i),null!=(t=this.segments[i-1])?t:null})}getInputForSegment(e){var t,i;const r=e,n=this.inputCache.find(e=>e.segment===r);if(n)return n.age=this.nextInputCacheAge++,n.input;let s=null;(r.initSegment||r.firstSegment)&&(s=this.getInputForSegment(null!=(t=r.initSegment)?t:r.firstSegment));const a=V(H({},this.input._formatOptions),{isobmff:V(H({},this.input._formatOptions.isobmff),{resolveKeyId:(null==(i=this.input._formatOptions.isobmff)?void 0:i.resolveKeyId)&&(e=>{if(!r.encryption||"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method||!r.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let t=e.psshBoxes;const{psshBox:i}=r.encryption;return null!==i.keyIds&&!i.keyIds.includes(e.keyId)||t.some(e=>wr(e,i))||(t=[...t,i]),this.input._formatOptions.isobmff.resolveKeyId(V(H({},e),{psshBoxes:t}))})})}),o=new ml({source:new na(r.location.path,e=>Y(this,null,function*(){var t,i;oe(e.isRoot);const n=V(H({},e),{isRoot:!1});let s;const a=r.location.offset>0||null!==r.location.length;if(r.encryption&&"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method)if("AES-128"===r.encryption.method){const e=r.encryption;oe(e.iv);let t=yield this.input._getSourceCached(n);if(a){const e=t.source.slice(r.location.offset,null!=(i=r.location.length)?i:void 0).ref();t.free(),t=e}const o=((e,t,i)=>{let r=!1,n=0;const s=q(2,16),a=new Lr;return new ReadableStream({pull:o=>Y(null,null,function*(){r||(a.init(yield t()),r=!0);const l=s+16;let c=e.requestSliceRange(n,0,l);if(ct(c)&&(c=yield c),!c||0===c.length)throw new Error("Invalid ciphertext.");const u=c.length;if(u%16!==0)throw new Error("Invalid ciphertext.");const d=u===l?u-16:u,h=Tl(c,d),f=new Uint8Array(d);for(let e=0;e<d;e+=16)a.in.set(h.subarray(e,e+16)),a.decrypt(),f.set(a.out,e);if(d<u)o.enqueue(f),n+=d;else{const e=f[d-1];if(0===e||e>16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=f.subarray(0,d-e);o.enqueue(t),o.close(),i()}}),cancel:()=>{i()}})})(new kl(t.source),()=>Y(this,null,function*(){const t={stack:[],error:void 0,hasError:!1};try{const i=ka(t,yield this.input._getSourceCached({path:e.keyUri,isRoot:!1},fl),!1),r=new kl(i.source),n=yield r.requestSlice(0,Er);if(!n)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:Tl(n,Er),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{ya(t)}}),()=>{t.free()});s=new fa(o).ref()}else oe(!1);else if(s=yield this.input._getSourceCached(n),a){const e=s.source.slice(r.location.offset,null!=(t=r.location.length)?t:void 0).ref();s.free(),s=e}return s})),formats:this.input._formats.filter(e=>!(e instanceof qa)),initInput:null!=s?s:void 0,formatOptions:a});o._onFormatDetermined=e=>{var t,i;if(("SAMPLE-AES"===(null==(t=r.encryption)?void 0:t.method)||"SAMPLE-AES-CTR"===(null==(i=r.encryption)?void 0:i.method))&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:r,input:o,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=kt(this.inputCache,e=>e.age);oe(-1!==e),this.inputCache.splice(e,1)}return o}getLiveRefreshInterval(){return Y(this,null,function*(){return 0===this.getRemainingWaitTimeMs()&&(yield this.runUpdateSegments()),this.streamHasEnded?null:this.refreshInterval})}}class wa extends yr{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){oe(this.input._rootSource instanceof ia);const e=yield this.input._reader.requestEntireFile();oe(e);const t=Ol(e,e.length,{ignore:Xs}),{rootPath:i}=this.input._rootSource,r=[],n=[];for(let u=1;u<t.length;u++){const e=t[u];if(e.startsWith(Ns)){const n=u,s=t[++u];if(void 0===s)throw new Error("Incorrect M3U8 file; a line must follow the #EXT-X-STREAM-INF tag.");const a=pt(i,s),o=new $s(e.slice(18));if(null===o.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");r.push({fullPath:a,attributes:o,lineNumber:n,hasOnlyKeyPackets:!1})}else if(e.startsWith(Os)){const t=new $s(e.slice(26)),n=t.get("uri");if(null===n)throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a URI attribute.");if(null===t.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");const s=pt(i,n);r.push({fullPath:s,attributes:t,lineNumber:u,hasOnlyKeyPackets:!0})}else if(e.startsWith(Ls)){const t=new $s(e.slice(13));if(null===t.get("type"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a TYPE attribute.");if(null===t.get("group-id"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a GROUP-ID attribute.");let r=null;const s=t.get("uri");null!==s&&(r=pt(i,s)),n.push({fullPath:r,attributes:t,lineNumber:u})}else if("#EXT-X-I-FRAMES-ONLY"===e);else if(e.startsWith(zs)){const e=new va(this,i,null,t);return this.segmentedInputs=[e],this.hasMasterPlaylist=!1,void(this.trackBackings=yield e.getTrackBackings())}}const s=[...new Set(n.filter(e=>"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],a=[...new Set(n.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=yield Promise.all(r.map((e,t)=>Y(this,null,function*(){var r,o,l,c;const u=[],d=e.attributes.get("codecs");let h;if(d)h=d.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=yield t.getTrackBackings(),r=yield Promise.all(i.map(e=>Y(this,null,function*(){return{track:e,codec:yield e.getCodec()}})));h=yield Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const f=e.attributes.get("video"),m=e.attributes.get("audio"),p=h.some(e=>Ki.includes(or(e))),g=h.some(e=>$i.includes(or(e)));if(null!==f&&!p){if(!s.includes(f))throw new Error(`Invalid M3U8 file; variant stream references video group "${f}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===f&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=pt(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});oe(null!==a),h.push(a)}}if(null!==m&&!g){if(!a.includes(m))throw new Error(`Invalid M3U8 file; variant stream references audio group "${m}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===m&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=pt(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});oe(null!==a),h.push(a)}}h=[...new Set(h)];let k=null,y=null;const b=e.attributes.getAsNumber("bandwidth");oe(null!==b);const T=e.attributes.getAsNumber("average-bandwidth"),v=e.attributes.get("name");for(const i of h){const d=or(i);if(null!==d)if(Ki.includes(d)){if(null!==k)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");k=i;const a=e.attributes.get("video");if(null===a){const i=e.attributes.get("resolution");let r=null,n=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(r=Number(e[1]),n=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:We,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:k,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:b,averageBitrate:T,name:v,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:r,height:n}})}else{if(!s.includes(a))throw new Error(`Invalid M3U8 file; variant stream references video group "${a}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==a||"video"!==s.toLowerCase())continue;const l=null!=(r=i.attributes.get("resolution"))?r:e.attributes.get("resolution");let c=null,d=null;if(l){const e=l.match(/^(\d+)x(\d+)$/);e&&(c=Number(e[1]),d=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:xa(i.attributes),autoselect:xa(i.attributes)||Ca(i.attributes),languageCode:Ba(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(o=i.fullPath)?o:e.fullPath,fullCodecString:k,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:c,height:d}})}}}else if($i.includes(d)){if(null!==y)throw new Error("Unsupported M3U8 file; multiple audio codecs found in the CODECS attribute of a variant stream.");y=i;const r=e.attributes.get("audio");if(null===r){const i=e.attributes.get("channels"),r=null!==i?Number(i.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:We,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:y,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:b,averageBitrate:T,name:v,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==r&&Number.isInteger(r)&&r>0?r:null}})}else{if(!a.includes(r))throw new Error(`Invalid M3U8 file; variant stream references audio group "${r}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==r||"audio"!==s.toLowerCase())continue;const a=null!=(l=i.attributes.get("channels"))?l:e.attributes.get("channels"),o=null!==a?Number(a.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:xa(i.attributes),autoselect:xa(i.attributes)||Ca(i.attributes),languageCode:Ba(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(c=i.fullPath)?c:e.fullPath,fullCodecString:y,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==o&&Number.isInteger(o)&&o>0?o:null}})}}}}return u}))),l=[],c=e=>{var t,i;const r=l.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);r?(r.pairingMask|=e.pairingMask,r.default||(r.default=e.default),r.autoselect||(r.autoselect=e.autoselect),r.lineNumber=Math.min(r.lineNumber,e.lineNumber),null!==e.peakBitrate&&(r.peakBitrate=Math.max(null!=(t=r.peakBitrate)?t:-1/0,e.peakBitrate)),null!==e.averageBitrate&&(r.averageBitrate=Math.max(null!=(i=r.averageBitrate)?i:-1/0,e.averageBitrate)),r.languageCode===We&&(r.languageCode=e.languageCode)):(e.id=l.length+1,l.push(e))};for(const u of o)for(const e of u)c(e);l.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const u of l)"video"===u.info.type?this.trackBackings.push(new Pa(u)):this.trackBackings.push(new Ia(u));this.internalTracks=l}))()}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),oe(this.trackBackings),this.trackBackings})}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new va(this,e,i,null),this.segmentedInputs.push(t),t}getMetadataTags(){return Y(this,null,function*(){return{}})}getMimeType(){return Y(this,null,function*(){return Ds})}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class Sa{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>Y(this,null,function*(){const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(yield e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof Pa){for(const r of i)if((yield r.getCodec())===this.getCodec()){t=r;break}}else{oe(this instanceof Ia);for(const e of i)if((yield e.getCodec())===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t}))()}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return V(H({},Ct),{default:this.internalTrack.autoselect,primary:this.internalTrack.default})}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){oe(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}getDurationFromMetadata(e){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)})}getLiveRefreshInterval(){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()})}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}getFirstPacket(e){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)})}getPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)})}getKeyPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)})}getNextPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)})}getNextKeyPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)})}}class Pa extends Sa{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return or(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}getColorSpace(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getColorSpace()})}canBeTransparent(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.canBeTransparent()})}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getDecoderConfig()})}}class Ia extends Sa{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return or(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return Y(this,null,function*(){return yield this.hydrate(),this.backingAudioTrack.getDecoderConfig()})}}const xa=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},Ca=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},Ba=e=>{if(null===e)return We;const t=e.split("-")[0];return t||We};class Ea{constructor(){this._isIsobmff=!1}}class _a extends Ea{constructor(){super(...arguments),this._isIsobmff=!0}_getMajorBrand(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,12);if(ct(t)&&(t=yield t),!t)return null;t.skip(4);const i=Nl(t,4);return"ftyp"!==i&&"styp"!==i?null:Nl(t,4)})}_createDemuxer(e){return new zr(e)}}class Ra extends _a{_canReadInput(e){return Y(this,null,function*(){const t=yield this._getMajorBrand(e);if(null!==t)return"qt  "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(ct(t)&&(t=yield t),!t)return!1;let r=Cl(t),n=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(ct(t)&&(t=yield t),!t)return!1;r=Rl(t),n=16}if(r<n)return!1;const s=Nl(t,4);if("moof"===s||"sidx"===s)return!0;if("emsg"!==s&&"prft"!==s&&"free"!==s)return!1;i+=r}return!1})}get name(){return"MP4"}get mimeType(){return"video/mp4"}}class Fa extends _a{_canReadInput(e){return Y(this,null,function*(){return"qt  "===(yield this._getMajorBrand(e))})}get name(){return"QuickTime File Format"}get mimeType(){return"video/quicktime"}}class Aa extends Ea{isSupportedEBMLOfDocType(e,t){return Y(this,null,function*(){let i=e._reader.requestSlice(0,cn);if(ct(i)&&(i=yield i),!i)return!1;const r=un(i);if(null===r)return!1;if(r<1||r>8)return!1;if(hn(i,r)!==nn.EBML)return!1;const n=mn(i);if("number"!==typeof n)return!1;let s=e._reader.requestSlice(i.filePos,n);if(ct(s)&&(s=yield s),!s)return!1;const a=i.filePos;for(;s.filePos<=a+n-2;){const e=pn(s);if(!e)break;const{id:i,size:r}=e,n=s.filePos;if(void 0===r)return!1;switch(i){case nn.EBMLVersion:if(1!==hn(s,r))return!1;break;case nn.EBMLReadVersion:if(1!==hn(s,r))return!1;break;case nn.DocType:if(gn(s,r)!==t)return!1;break;case nn.DocTypeVersion:if(hn(s,r)>4)return!1}s.filePos=n+r}return!0})}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new Vn(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class Ma extends Aa{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Da extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}const i=yield $n(e._reader,t,t+4096);if(!i)return!1;const r=i.header,n=hr(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+n,4);if(ct(s)&&(s=yield s),!s)return!1;const a=Cl(s);if(a===ur||a===dr)return!0;t=i.startPos+i.header.totalSize;const o=yield $n(e._reader,t,t+4);if(!o)return!1;const l=o.header;return r.channel===l.channel&&r.sampleRate===l.sampleRate})}_createDemuxer(e){return new Gn(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class Na extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,12);if(ct(t)&&(t=yield t),!t)return!1;const i=Nl(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===Nl(t,4)})}_createDemuxer(e){return new ds(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class Oa extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,4);return ct(t)&&(t=yield t),!!t&&"OggS"===Nl(t,4)})}_createDemuxer(e){return new ss(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class La extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return ct(i)&&(i=yield i),!!i&&"fLaC"===Nl(i,4)})}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new ys(e)}}class za extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(ct(i)&&(i=yield i),!i)return!1;const r=ms(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),ct(i)&&(i=yield i),!i)return!1;const n=ms(i);return!!n&&(r.objectType===n.objectType&&r.samplingFrequencyIndex===n.samplingFrequencyIndex&&r.channelConfiguration===n.channelConfiguration)})}_createDemuxer(e){return new gs(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class Ua extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,205);if(ct(t)&&(t=yield t),!t)return!1;const i=Tl(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])})}_createDemuxer(e){return new xs(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class qa extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,7);if(ct(t)&&(t=yield t),!t)return!1;if(!("#EXTM3U"===Nl(t,7)))return!1;if(!(e._rootSource instanceof ia))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0})}_createDemuxer(e){return new wa(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Ds}}const Wa=new Ra,Ha=new Fa,Va=new Aa,ja=new Ma,Ka=new Da,Xa=new Na,$a=new Oa,Ga=new za,Qa=new La,Ya=new Ua,Ja=new qa,Za=[Ja,Wa,Ha,Va,ja,Xa,$a,Qa,Ka,Ga,Ya],eo=[Ja,Wa,Ha,Ka,Ga,Ya];var to=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});ft();let io=-1/0,ro=-1/0,no=null;"undefined"!==typeof FinalizationRegistry&&(no=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-io>=1e3&&(Pt._error("A VideoSample was garbage collected without first being closed. 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this.format&&this.format.includes("A")}constructor(e,t){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F;if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!oo.has(t.format))throw new TypeError("init.format must be one of: "+ao.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&bt(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=null!=(i=t.rotation)?i:0,this.timestamp=t.timestamp,this.duration=null!=(r=t.duration)?r:0;const m=null!=(n=t.layout)?n:bo(t.format,t.codedWidth,t.codedHeight);let p=null!=(s=t.colorSpace)?s:null;null===p&&(p="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:null!=(o=null==(a=t.visibleRect)?void 0:a.left)?o:0,top:null!=(c=null==(l=t.visibleRect)?void 0:l.top)?c:0,width:null!=(d=null==(u=t.visibleRect)?void 0:u.width)?d:t.codedWidth,height:null!=(f=null==(h=t.visibleRect)?void 0:h.height)?f:t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?fe(e):fe(e).slice(),this._layout=m,this.colorSpace=new mo(p)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==(null==t?void 0:t.rotation)&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==(null==t?void 0:t.timestamp)&&!Number.isFinite(null==t?void 0:t.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==(null==t?void 0:t.duration)&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==(null==t?void 0:t.visibleRect)&&bt(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:null!=(p=null==(m=e.visibleRect)?void 0:m.x)?p:0,top:null!=(k=null==(g=e.visibleRect)?void 0:g.y)?k:0,width:null!=(b=null==(y=e.visibleRect)?void 0:y.width)?b:e.codedWidth,height:null!=(v=null==(T=e.visibleRect)?void 0:T.height)?v:e.codedHeight},this.rotation=null!=(w=null==t?void 0:t.rotation)?w:0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=null!=(S=null==t?void 0:t.timestamp)?S:e.timestamp/1e6,this.duration=null!=(I=null==t?void 0:t.duration)?I:(null!=(P=e.duration)?P:0)/1e6,this.colorSpace=new mo(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&bt(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new lo(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*Qe),duration:Math.trunc((null!=(x=t.duration)?x:0)*Qe)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const n=null!=(C=t.visibleRect)?C:{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(n.width,n.height),a=s.getContext("2d",{alpha:nt(),willReadFrequently:!0});if(!a)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");a.drawImage(e,-n.left,-n.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:n.width,height:n.height},this.squarePixelWidth=n.width,this.squarePixelHeight=n.height,this.rotation=null!=(B=t.rotation)?B:0,this.timestamp=t.timestamp,this.duration=null!=(E=t.duration)?E:0,this.colorSpace=new mo({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof so))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!ao.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=null!=(_=t.rotation)?_:0,this.timestamp=t.timestamp,this.duration=null!=(R=t.duration)?R:0,this.colorSpace=e.getColorSpace()}this.encodeOptions=null!=(F=null==t?void 0:t.encodeOptions)?F:{},this.pixelAspectRatio=yt({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),null==no||no.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return oe(null!==this._data),this._data instanceof so?new lo(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):po(this._data)?new lo(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(oe(this._layout),new lo(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new lo(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(null==no||no.unregister(this),this._data instanceof so?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):po(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){var t;if(yo(e),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(t=e.format)?t:this.format))throw new Error("Cannot get allocation size when format is null.");if(po(this._data))return this._data.allocationSize(e);return vo(this,e).allocationSize}copyTo(e){return Y(this,arguments,function*(e,t={}){var i,r;if(!Ie(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer 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is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,yield this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},null!=(r=t.colorSpace)?r:"srgb"),!1);if(!(n instanceof lo))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(n.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${n.format}' instead.`);return yield n.copyTo(e,t)}catch(u){i.error=u,i.hasError=!0}finally{to(i)}}}const n=vo(this,t);oe(this.format);const s=fe(e);if(s.byteLength<n.allocationSize)throw new TypeError(`Destination buffer too small. Required: ${n.allocationSize}, Available: ${s.byteLength}`);const a=To(this.format);let o;if(this._data instanceof so){let e=this._data.getDataPlanes();if(ct(e)&&(e=yield e),!Array.isArray(e)||e.some(e=>!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');o=e}else if(this._data instanceof Uint8Array)oe(this._layout),oe(this._layout.length===a.length),o=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");oe(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);o=[{data:fe(t.data),stride:4*this.codedWidth}]}const l=[],c=a.length;for(let d=0;d<c;d++){const e=n.computedLayouts[d],t=o[d].stride,i=o[d].data;let r=e.sourceTop*t;r+=e.sourceLeftBytes;let a=e.destinationOffset;const c=e.sourceWidthBytes,u={offset:a,stride:e.destinationStride};for(let n=0;n<e.sourceHeight;n++){if(r+c>i.byteLength)throw new Error("Source buffer OOB read.");if(a+c>s.byteLength)throw new Error("Destination buffer OOB write.");const n=i.subarray(r,r+c);s.set(n,a),r+=t,a+=e.destinationStride}l.push(u)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),i=this.format.includes("X")&&t.format.includes("A");if(e||i)for(let t=0;t<n.allocationSize;t+=4){if(e){const e=s[t],i=s[t+2];s[t]=i,s[t+2]=e}i&&(s[t+3]=255)}}return l})}toVideoFrame(){if(this._closed)throw new Error("VideoSample is closed.");if(oe(null!==this._data),this._data instanceof so){if(null===this.format)throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if format is null.");const e=this._data.getDataPlanes();if(ct(e))throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if getDataPlanes() returns a promise.");const t=e.reduce((e,t)=>e+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const n=[];for(const s of e)i.set(s.data,r),n.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:n[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return po(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(oe(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,n,s,a,o,l){let c=0,u=0,d=this.displayWidth,h=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(c=t,u=i,d=r,h=n,f=s,m=a,void 0!==o?(p=o,g=l):(p=d,g=h)):(f=t,m=i,void 0!==r&&(p=r,g=n)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(c))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:c,sy:u,sWidth:d,sHeight:h}=this._rotateSourceRegion(c,u,d,h,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const T=this.rotation%180===0?1:p/g;e.scale(1/T,T),e.drawImage(k,c,u,d,h,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){var i,r,n,s,a,o,l,c,u;if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&ko(t.crop,"options.");const d=e.canvas.width,h=e.canvas.height,f=null!=(i=t.rotation)?i:this.rotation,[m,p]=f%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let g,k,y,b,T=t.crop;T&&(T=go(T,m,p));const{sx:v,sy:w,sWidth:S,sHeight:P}=this._rotateSourceRegion(null!=(n=null==(r=t.crop)?void 0:r.left)?n:0,null!=(a=null==(s=t.crop)?void 0:s.top)?a:0,null!=(l=null==(o=t.crop)?void 0:o.width)?l:m,null!=(u=null==(c=t.crop)?void 0:c.height)?u:p,f);if("fill"===t.fit)g=0,k=0,y=d,b=h;else{const[e,i]=t.crop?[t.crop.width,t.crop.height]:[m,p],r="contain"===t.fit?Math.min(d/e,h/i):Math.max(d/e,h/i);y=e*r,b=i*r,g=(d-y)/2,k=(h-b)/2}e.save();const I=f%180===0?1:y/b;e.translate(d/2,h/2),e.rotate(f*Math.PI/180),e.scale(1/I,I),e.translate(-d/2,-h/2),e.drawImage(this.toCanvasImageSource(),v,w,S,P,g,k,y,b),e.restore()}_rotateSourceRegion(e,t,i,r,n){return 90===n?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===n?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===n&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,n=e.height,[s,a]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,l=i.crop?i.crop.height:a;let c=0;2*r<o&&2*n<l&&(c=Math.floor(Math.log2(Math.min(o/r,l/n))));const u=r*q(2,c),d=n*q(2,c),{canvas:h,context:f,isNew:m}=c>0?fo(u,d):{canvas:e,context:t,isNew:i.targetIsFresh};f.imageSmoothingQuality="high",i.fillBlack?(f.fillStyle="black",f.fillRect(0,0,u,d)):m||f.clearRect(0,0,u,d),this.drawWithFit(f,{fit:i.fit,rotation:i.rotation,crop:i.crop}),f.globalCompositeOperation="copy";for(let p=c;p>1;p--){const e=r*q(2,p),t=n*q(2,p);f.drawImage(h,0,0,e,t,0,0,e/2,t/2)}f.globalCompositeOperation="source-over",c>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(h,0,0,2*r,2*n,0,0,r,n),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(oe(null!==this._data),this._data instanceof so||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}transform(e){return Y(this,null,function*(){var t,i,r,n,s;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&ko(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const a=le(this.rotation+(null!=(t=e.rotate)?t:0)),[o,l]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let c=e.crop;c&&(c=go(c,o,l));const u=c?c.width:o,d=c?c.height:l,h=u/d;let f,m;void 0!==e.width&&void 0===e.height?(f=e.width,m=f/h):void 0===e.width&&void 0!==e.height?(m=e.height,f=m*h):void 0!==e.width&&void 0!==e.height?(f=e.width,m=e.height):(f=u,m=d),f=Ve(f,null!=(i=e.roundDimensionsTo)?i:1),m=Ve(m,null!=(r=e.roundDimensionsTo)?r:1);const p={width:f,height:m,fit:null!=(n=e.fit)?n:"fill",rotation:a,crop:null!=c?c:{left:0,top:0,width:o,height:l},alpha:null!=(s=e.alpha)?s:"keep"};for(const e of co){let t=e(this,p);if(ct(t)&&(t=yield t),null!==t)return t}const{canvas:g,context:k,isNew:y}=fo(p.width,p.height);return this._drawWithFitAndMipmapping(g,k,{fit:p.fit,rotation:p.rotation,crop:p.crop,targetIsFresh:y,fillBlack:"discard"===p.alpha}),new lo(g,{timestamp:this.timestamp,duration:this.duration,rotation:0})})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const co=[],uo=[];let ho=0;const fo=(e,t)=>{for(const n of uo)if(n.canvas.width===e&&n.canvas.height===t)return n.age=ho++,{canvas:n.canvas,context:n.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return uo.length>=3&&uo.splice(kt(uo,e=>e.age),1),uo.push({canvas:i,context:r,age:ho++}),{canvas:i,context:r,isNew:!0}};class mo{constructor(e){var t,i,r,n;if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(ke);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(be);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(ve);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=null!=(t=null==e?void 0:e.primaries)?t:null,this.transfer=null!=(i=null==e?void 0:e.transfer)?i:null,this.matrix=null!=(r=null==e?void 0:e.matrix)?r:null,this.fullRange=null!=(n=null==e?void 0:e.fullRange)?n:null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const po=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,go=(e,t,i)=>{const r=Math.min(e.left,t),n=Math.min(e.top,i),s=Math.min(e.width,t-r),a=Math.min(e.height,i-n);return oe(s>=0),oe(a>=0),{left:r,top:n,width:s,height:a}},ko=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},yo=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},bo=(e,t,i)=>{const r=To(e),n=[];let s=0;for(const a of r){const e=Math.ceil(t/a.widthDivisor),r=Math.ceil(i/a.heightDivisor),o=e*a.sampleBytes,l=o*r;n.push({offset:s,stride:o}),s+=l}return n},To=e=>{const t=(e,t,i,r,n)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return n&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:Oe(e),oe(!1)}},vo=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,n=wo(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let a;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");a=t.format}else a=e.format;return Po(n,a,s)},wo=(e,t,i,r,n)=>{const s=H({},e);if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!So(n,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},So=(e,t)=>{if(null===e)return!0;const i=To(e);for(let r=0;r<i.length;r++){const e=i[r],n=e.widthDivisor,s=e.heightDivisor;if((t.x||0)%n!==0)return!1;if((t.y||0)%s!==0)return!1}return!0},Po=(e,t,i)=>{const r=To(t),n=r.length;if(void 0!==i&&i.length!==n)throw new TypeError(`Layout must have ${n} planes.`);let s=0;const a=[],o=[];for(let l=0;l<n;l++){const t=r[l],n=t.sampleBytes,c=t.widthDivisor,u=t.heightDivisor,d={destinationOffset:0,destinationStride:0,sourceTop:0,sourceHeight:0,sourceLeftBytes:0,sourceWidthBytes:0};if(d.sourceTop=Math.ceil(Math.trunc(e.y||0)/u),d.sourceHeight=Math.ceil(Math.trunc(e.height||0)/u),d.sourceLeftBytes=Math.floor(Math.trunc(e.x||0)/c)*n,d.sourceWidthBytes=Math.floor(Math.trunc(e.width||0)/c)*n,void 0!==i){const e=i[l];if(e.stride<d.sourceWidthBytes)throw new TypeError(`Stride for plane ${l} is too small.`);d.destinationOffset=e.offset,d.destinationStride=e.stride}else d.destinationOffset=s,d.destinationStride=d.sourceWidthBytes;const h=d.destinationStride*d.sourceHeight+d.destinationOffset;if(h>4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(h),s=Math.max(s,h);for(let e=0;e<l;e++){const t=a[e];if(!(o[l]<=t.destinationOffset||o[e]<=d.destinationOffset))throw new TypeError("Planes overlap.")}a.push(d)}return{allocationSize:s,computedLayouts:a}},Io=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]);class xo{constructor(){this._referenceCount=0}}class Co{get microsecondTimestamp(){return Math.trunc(Qe*this.timestamp)}get microsecondDuration(){return Math.trunc(Qe*this.duration)}constructor(e){if(this._closed=!1,Fo(e)){if(null===e.format)throw new TypeError("AudioData with null format is not supported.");this._data=e,this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=e.numberOfFrames,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp/1e6,this.duration=e.numberOfFrames/e.sampleRate}else if(e instanceof xo){if(this._data=e,e._referenceCount++,this.format=e.getFormat(),!Io.has(this.format))throw new TypeError("getFormat() must return an AudioSampleFormat.");if(this.sampleRate=e.getSampleRate(),!Number.isInteger(this.sampleRate)||this.sampleRate<=0)throw new TypeError("getSampleRate() must return a positive integer.");if(this.numberOfFrames=e.getNumberOfFrames(),!Number.isInteger(this.numberOfFrames)||this.numberOfFrames<0)throw new TypeError("getNumberOfFrames() must return a non-negative integer.");if(this.numberOfChannels=e.getNumberOfChannels(),!Number.isInteger(this.numberOfChannels)||this.numberOfChannels<=0)throw new TypeError("getNumberOfChannels() must return a positive integer.");if(this.timestamp=e.getTimestamp(),!Number.isFinite(this.timestamp))throw new TypeError("getTimestamp() must return a finite number.");this.duration=this.numberOfFrames/this.sampleRate}else{if(!e||"object"!==typeof e)throw new TypeError("Invalid AudioDataInit: must be an object.");if(!Io.has(e.format))throw new TypeError("Invalid AudioDataInit: invalid format.");if(!Number.isFinite(e.sampleRate)||e.sampleRate<=0)throw new TypeError("Invalid AudioDataInit: sampleRate must be > 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(null==e?void 0:e.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(Bo(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*Bo(this.format);if(i.byteLength<r)throw new TypeError("Invalid AudioDataInit: insufficient data size.");this._data=i}null==no||no.register(this,{type:"audio",data:this._data},this)}allocationSize(e){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(!Number.isInteger(e.planeIndex)||e.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==e.format&&!Io.has(e.format))throw new TypeError("Invalid format.");if(void 0!==e.frameOffset&&(!Number.isInteger(e.frameOffset)||e.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==e.frameCount&&(!Number.isInteger(e.frameCount)||e.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const r=null!=(t=e.format)?t:this.format,n=null!=(i=e.frameOffset)?i:0;if(n>=this.numberOfFrames)throw new RangeError("frameOffset out of range");const s=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-n;if(s>this.numberOfFrames-n)throw new RangeError("frameCount out of range");const a=Bo(r),o=Eo(r);if(o&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!o&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(o?s:s*this.numberOfChannels)*a}copyTo(e,t){if(!Ie(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!Io.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:n}=t;let{planeIndex:s}=t,a=this.format;const o=null!=i?i:this.format;if(!o)throw new Error("Destination format not determined");const l=this.numberOfFrames,c=this.numberOfChannels,u=null!=n?n:0;if(u>=l)throw new RangeError("frameOffset out of range");const d=void 0!==r?r:l-u;if(d>l-u)throw new RangeError("frameCount out of range");const h=Bo(o),f=Eo(o);if(f&&s>=c)throw new RangeError("planeIndex out of range");if(!f&&0!==s)throw new RangeError("planeIndex out of range");const m=(f?d:d*c)*h;if(e.byteLength<m)throw new RangeError("Destination buffer is too small");const p=me(e),g=Ro(o);if(Fo(this._data)){if(it()&&c>2&&o!==a)return void Ao(this._data,p,a,o,c,s,u,d);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:u,frameCount:d,format:o})}catch(w){if("f32-planar"===o)throw w;a="f32-planar"}}const k=_o(a),y=Bo(a),b=Eo(a);let T;if(this._data instanceof xo){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=l*y*(b?1:c);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(b)if(f)T=e(s),s=0;else{T=new Uint8Array(l*y*c);for(let t=0;t<c;t++){const i=e(t);T.set(i,t*l*y)}}else T=e(0)}else if(this._data instanceof Uint8Array)T=this._data;else if(oe("f32-planar"===a),f)T=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:s})),this._data.copyTo(T,{format:"f32-planar",planeIndex:s}),s=0;else{T=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:0})*c);for(let e=0;e<c;e++)this._data.copyTo(T.subarray(e*l*y,(e+1)*l*y),{format:"f32-planar",planeIndex:e})}const v=me(T);for(let S=0;S<d;S++)if(f){let e;e=b?(s*l+(S+u))*y:((S+u)*c+s)*y;g(p,S*h,k(v,e))}else for(let e=0;e<c;e++){let t;t=b?(e*l+(S+u))*y:((S+u)*c+e)*y;g(p,(S*c+e)*h,k(v,t))}}clone(){if(this._closed)throw new Error("AudioSample is closed.");if(this._data instanceof xo){const e=new Co(this._data);return e.setTimestamp(this.timestamp),e}if(Fo(this._data)){const e=new Co(this._data.clone());return e.setTimestamp(this.timestamp),e}return new Co({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp,data:this._data})}trim(e,t=this.numberOfFrames){if(!Number.isInteger(e)||e<0)throw new TypeError("startFrame must be a non-negative integer.");if(!Number.isInteger(t)||t<0)throw new TypeError("endFrame must be a non-negative integer.");if(e>this.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t<e)throw new RangeError("endFrame must not be less than startFrame.");if(this._closed)throw new Error("AudioSample is closed.");const i=t-e,r=Bo(this.format);let n;if(Eo(this.format)){const t=i*r;if(n=new Uint8Array(t*this.numberOfChannels),i>0)for(let r=0;r<this.numberOfChannels;r++)this.copyTo(n.subarray(r*t,(r+1)*t),{planeIndex:r,format:this.format,frameOffset:e,frameCount:i})}else n=new Uint8Array(i*this.numberOfChannels*r),i>0&&this.copyTo(n,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new Co({data:n,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(null==no||no.unregister(this),this._data instanceof xo?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Fo(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof xo?this._createAudioDataFromData():Fo(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(Eo(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(new Uint8Array(t,i*e,e),{planeIndex:i,format:this.format});return new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:t})}{const e=new ArrayBuffer(this.allocationSize({planeIndex:0,format:this.format}));return this.copyTo(e,{planeIndex:0,format:this.format}),new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:e})}}toAudioBuffer(){if(this._closed)throw new Error("AudioSample is closed.");const e=new AudioBuffer({numberOfChannels:this.numberOfChannels,length:this.numberOfFrames,sampleRate:this.sampleRate}),t=new Float32Array(this.allocationSize({planeIndex:0,format:"f32-planar"})/4);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(t,{planeIndex:i,format:"f32-planar"}),e.copyToChannel(t,i);return e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}[Symbol.dispose](){this.close()}static*_fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,n=e.length,s=Math.floor(24e4/i);let a=0,o=n;for(;o>0;){const n=Math.min(s,o),l=new Float32Array(i*n);for(let t=0;t<i;t++)e.copyFromChannel(l.subarray(t*n,(t+1)*n),t,a);yield new Co({format:"f32-planar",sampleRate:r,numberOfFrames:n,numberOfChannels:i,timestamp:t+a/r,data:l}),a+=n,o-=n}}static fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,n=e.length,s=Math.floor(24e4/i);let a=0,o=n;const l=[];for(;o>0;){const n=Math.min(s,o),c=new Float32Array(i*n);for(let t=0;t<i;t++)e.copyFromChannel(c.subarray(t*n,(t+1)*n),t,a);const u=new Co({format:"f32-planar",sampleRate:r,numberOfFrames:n,numberOfChannels:i,timestamp:t+a/r,data:c});l.push(u),a+=n,o-=n}return l}}const Bo=e=>{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},Eo=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},_o=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},Ro=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,qe(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,qe(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,qe(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},Fo=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,Ao=(e,t,i,r,n,s,a,o)=>{const l=_o(i),c=Ro(r),u=Bo(i),d=Bo(r),h=Eo(i);if(Eo(r))if(h){const r=new ArrayBuffer(o*u),n=me(r);e.copyTo(r,{planeIndex:s,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,e*d,l(n,e*u))}}else{const r=new ArrayBuffer(o*n*u),h=me(r);e.copyTo(r,{planeIndex:0,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,e*d,l(h,(e*n+s)*u))}}else if(h){const r=new ArrayBuffer(o*u),s=me(r);for(let h=0;h<n;h++){e.copyTo(r,{planeIndex:h,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,(e*n+h)*d,l(s,e*u))}}}else{const r=new ArrayBuffer(o*n*u),s=me(r);e.copyTo(r,{planeIndex:0,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++)for(let i=0;i<n;i++){const r=e*n+i;c(t,r*d,l(s,r*u))}}},Mo=[],Do=[],No=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},Oo=e=>{if(!mt(e))throw new TypeError("timestamp must be a number.")},Lo=(e,t,i)=>i.verifyKeyPackets?t.then(t=>Y(null,null,function*(){if(!t||"delta"===t.type)return t;const i=yield e.determinePacketType(t);return i&&(t.type=i),t})):t;class zo{constructor(e){if(!(e instanceof el))throw new TypeError("track must be an InputTrack.");this._track=e}getFirstPacket(){return Y(this,arguments,function*(e={}){if(No(e),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getFirstPacket(e),e)})}getFirstKeyPacket(){return Y(this,arguments,function*(e={}){No(e);const t=yield this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null})}getPacket(e){return Y(this,arguments,function*(e,t={}){if(Oo(e),No(t),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getPacket(e,t),t)})}getNextPacket(e){return Y(this,arguments,function*(e,t={}){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(No(t),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getNextPacket(e,t),t)})}getKeyPacket(e){return Y(this,arguments,function*(e,t={}){if(Oo(e),No(t),this._track.input._disposed)throw new gl;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=yield this._track._backing.getKeyPacket(e,t);if(!i)return i;oe("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getKeyPacket(i.timestamp-1/(yield this._track.getTimeResolution()),t):i})}getNextKeyPacket(e){return Y(this,arguments,function*(e,t={}){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(No(t),this._track.input._disposed)throw new gl;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=yield this._track._backing.getNextKeyPacket(e,t);if(!i)return i;oe("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getNextKeyPacket(i,t):i})}packets(e,t,i={}){if(void 0!==e&&!(e instanceof Tr))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!(null==i?void 0:i.metadataOnly))throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof Tr))throw new TypeError("endPacket must be an EncodedPacket.");if(No(i),this._track.input._disposed)throw new gl;const r=[];let{promise:n,resolve:s}=Ae(),{promise:a,resolve:o}=Ae(),l=!1,c=!1,u=null,d=!1;const h=[],f=()=>Math.max(2,h.length);(()=>Y(this,null,function*(){let u=null!=e?e:yield this.getFirstPacket(i);for(;u&&!c&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=(null==t?void 0:t.sequenceNumber));)r.length>f()?(({promise:a,resolve:o}=Ae()),yield a):(r.push(u),s(),({promise:n,resolve:s}=Ae()),u=yield this.getNextPacket(u,i));l=!0,s()}))().catch(e=>{d||(u=e,d=!0,s())});const m=this._track;return{next(){return Y(this,null,function*(){for(;;){if(m.input._disposed)throw new gl;if(c)return{value:void 0,done:!0};if(d)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(h.push(t);h.length>0&&t-h[0]>=1e3;)h.shift();return o(),{value:e,done:!1}}if(l)return{value:void 0,done:!0};yield n}})},return(){return Y(this,null,function*(){return c=!0,o(),s(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}class Uo{constructor(e,t){this.onSample=e,this.onError=t}}class qo{mediaSamplesInRange(e=-1/0,t=1/0,i){Oo(e),Oo(t);const r=[];let n=!1,s=null,{promise:a,resolve:o}=Ae(),{promise:l,resolve:c}=Ae(),u=!1,d=!1,h=!1,f=null,m=null,p=!1;const g=V(H({},i),{verifyKeyPackets:!0,metadataOnly:!1});(()=>Y(this,null,function*(){var i;f=yield this._createDecoder(i=>{c(),i.timestamp>=t&&(d=!0),d?i.close():(s&&(i.timestamp>e?(r.push(s),n=!0):s.close()),i.timestamp>=e&&(r.push(i),n=!0),s=n?null:i,r.length>0&&(o(),({promise:a,resolve:o}=Ae())))},e=>{p||(m=e,p=!0,o())});const k=this._createPacketSink(),y=null!=(i=yield k.getKeyPacket(e,g))?i:yield k.getFirstKeyPacket(g);let b=y;const T=k.packets(null!=y?y:void 0,void 0,g);for(yield T.next();b&&!d&&!this._track.input._disposed;){const e=Wo(r.length);if(r.length+f.getDecodeQueueSize()>e){({promise:l,resolve:c}=Ae()),yield l;continue}f.decode(b);const t=yield T.next();if(t.done)break;b=t.value}yield T.return(),h||this._track.input._disposed||(yield f.flush()),!n&&s&&r.push(s),u=!0,o()}))().catch(e=>{p||(m=e,p=!0,o())}).finally(()=>{null==f||f.close()});const k=this._track,y=()=>{null==s||s.close();for(const e of r)e.close()};return{next(){return Y(this,null,function*(){for(;;){if(k.input._disposed)throw h=!0,d=!0,y(),new gl;if(h)return{value:void 0,done:!0};if(p)throw h=!0,d=!0,y(),m;if(r.length>0){const e=r.shift();return c(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};yield a}})},return(){return Y(this,null,function*(){return h=!0,d=!0,c(),o(),y(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=function(e){return Z(this,null,function*(){Symbol.iterator in e?yield*ee(e[Symbol.iterator]()):yield*ee(e[Symbol.asyncIterator]())})}(e),r=[],n=[];let{promise:s,resolve:a}=Ae(),{promise:o,resolve:l}=Ae(),c=!1,u=!1,d=null,h=null,f=!1;const m=e=>{n.push(e),a(),({promise:s,resolve:a}=Ae())},p=V(H({},t),{verifyKeyPackets:!0,metadataOnly:!1});(()=>Y(this,null,function*(){d=yield this._createDecoder(e=>{if(l(),u)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i<t;i++)m(i<t-1?e.clone():e);else e.close()},e=>{f||(h=e,f=!0,a())});const e=this._createPacketSink();let t=null,s=null,g=-1;const k=()=>Y(this,null,function*(){oe(s),oe(d);let t=s;for(d.decode(t);t.sequenceNumber<g;){const i=Wo(n.length);for(;n.length+d.getDecodeQueueSize()>i&&!u;)({promise:o,resolve:l}=Ae()),yield o;if(u)break;const r=yield e.getNextPacket(t,p);oe(r),d.decode(r),t=r}g=-1}),y=()=>Y(this,null,function*(){oe(d),yield d.flush();for(let e=0;e<r.length;e++)m(null);r.length=0});try{for(var b,T,v,w=te(i);b=!(T=yield w.next()).done;b=!1){const i=T.value;if(Oo(i),u||this._track.input._disposed)break;const n=yield e.getPacket(i,p),a=n&&(yield e.getKeyPacket(i,p));a?(t&&(a.sequenceNumber!==s.sequenceNumber||n.timestamp<t.timestamp)&&(yield k(),yield y()),r.push(n.timestamp),g=Math.max(n.sequenceNumber,g),t=n,s=a):(-1!==g&&(yield k(),yield y()),m(null),t=null)}}catch(T){v=[T]}finally{try{b&&(T=w.return)&&(yield T.call(w))}finally{if(v)throw v[0]}}u||this._track.input._disposed||(-1!==g&&(yield k()),yield y()),c=!0,a()}))().catch(e=>{f||(h=e,f=!0,a())}).finally(()=>{null==d||d.close()});const g=this._track,k=()=>{for(const e of n)null==e||e.close()};return{next(){return Y(this,null,function*(){for(;;){if(g.input._disposed)throw u=!0,k(),new gl;if(u)return{value:void 0,done:!0};if(f)throw u=!0,k(),h;if(n.length>0){const e=n.shift();return oe(void 0!==e),l(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};yield s}})},return(){return Y(this,null,function*(){return u=!0,l(),a(),k(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}const Wo=e=>0===e?40:8;class Ho extends Uo{constructor(e,t,i,r,n,s){var a,o,l,c,u,d,h,f;super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=n,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new et,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const m=Mo.find(e=>e.supports(i,r));if(m)this.customDecoder=new m,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof lo))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();oe(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(at()){if("avc"===i&&this.decoderConfig.description){const e=Qt(fe(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=Jt(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig=V(H({},this.decoderConfig),{hardwareAcceleration:"prefer-software"})),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=ei(t),this.decoderConfig=V(H({},this.decoderConfig),{description:Gt(e)})))}}Se(this.decoderConfig.colorSpace)||(this.decoderConfig=V(H({},this.decoderConfig),{colorSpace:{primaries:null!=(o=null==(a=this.decoderConfig.colorSpace)?void 0:a.primaries)?o:"bt709",matrix:null!=(c=null==(l=this.decoderConfig.colorSpace)?void 0:l.matrix)?c:"bt709",transfer:null!=(d=null==(u=this.decoderConfig.colorSpace)?void 0:u.transfer)?d:"bt709",fullRange:null!=(f=null==(h=this.decoderConfig.colorSpace)?void 0:h.fullRange)&&f}}))}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){var e,t;return this.customDecoder?this.customDecoderQueueSize:(oe(this.decoder),Math.max(this.decoder.decodeQueueSize,null!=(t=null==(e=this.alphaDecoder)?void 0:e.decodeQueueSize)?t:0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(oe(this.decoder),it()||Fe(this.inputTimestamps,e.timestamp,e=>e),at()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const n of Wt(e.data,this.decoderConfig)){const r=Ht(e.data[n.offset]);if(i||(i=r>=1&&r<=5),r===Nt.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(n.offset,n.offset+n.length))}if(!this.decoderConfig.description)for(let e=0;e<t.length;e++){const i=t[e];if(Ht(i[0])!==Nt.SPS)continue;const r=Jt(i);r&&0!==r.maxDecFrameBuffering&&1!==r.bitstreamRestrictionFlag&&(t[e]=ei(r));break}const r=((e,t)=>{if(t.description){const i=3&fe(t.description)[4];return Xt(e,i+1)}return Kt(e)})(t,this.decoderConfig);e=new Tr(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=mi(e.data,this.decoderConfig);t&&(e=new Tr(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new jo),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();oe(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();oe(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=wi(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(null!=t?t:e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of ti(e,this.decoderConfig)){const i=ii(e[t.offset]);if(i===Lt.RASL_N||i===Lt.RASL_R)return!0}return!1}sampleHandler(e){if(it()){if(this.sampleQueue.length>0&&e.timestamp>=ce(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}Fe(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();oe(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}mergeAlpha(e,t){return Y(this,null,function*(){const i=Ae();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){oe(this.merger);const i=yield this.merger.merge(e,t);r.sample=new lo(i)}else r.sample=new lo(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(n){Me(this.finalSamples,r),this.onError(n)}finally{Me(this.mergeAlphaPromises,i.promise),i.resolve()}})}flush(){return Y(this,null,function*(){var e;if(this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(oe(this.decoder),yield Promise.all([this.decoder.flush(),null==(e=this.alphaDecoder)?void 0:e.flush()]),yield Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),it()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1})}close(){var e;this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(oe(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,null==(e=this.merger)||e.close());for(const t of this.sampleQueue)t.close();this.sampleQueue.length=0}}let Vo=null;class jo{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!Vo){const e=new Blob([`(${Ko.toString()})()`],{type:"application/javascript"});Vo=URL.createObjectURL(e)}const e=qe(navigator.hardwareConcurrency,1,4);for(let t=0;t<e;t++){const e=new Worker(Vo);e.addEventListener("message",e=>{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=Ae();this.pendingRequests.set(i,r);const n=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,n.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const Ko=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:n,alpha:s}=e.data;i=i.then(()=>Y(null,null,function*(){try{const e=yield r(n,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{n.close(),s.close()}}))});const r=(e,t)=>Y(null,null,function*(){const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),l=i.includes("P12"),c=r.includes("P10"),u=r.includes("P12");if(c!==o||u!==l)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return yield n(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return yield s(e,t,i);if("NV12"===i)return yield a(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)}),n=(e,t,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=new Uint8Array(4*d);yield e.copyTo(h);const f=yield o(t,c,u,1);for(let e=0,t=3;e<d;e++,t+=4)h[t]=f[e];const m={format:"RGBX"===i||"RGBA"===i?"RGBA":"BGRA",codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[h.buffer]};return new VideoFrame(h,m)}),s=(e,t,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=i.includes("P10"),h=i.includes("P12"),f=d||h?2:1;let m,p;i.startsWith("I420")?(m=Math.ceil(c/2),p=Math.ceil(u/2)):i.startsWith("I422")?(m=Math.ceil(c/2),p=u):(m=c,p=u);const g=c*u,k=g*f,y=m*p*f,b=new Uint8Array(k+2*y+g*f);yield e.copyTo(b);const T=yield o(t,c,u,f),v=k+2*y;b.set(T,v);const w={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[b.buffer]};return new VideoFrame(b,w)}),a=(e,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=Math.ceil(c/2)*Math.ceil(u/2),f=e.allocationSize();t&&t.byteLength===f||(t=new Uint8Array(f)),yield e.copyTo(t);const m=new Uint8Array(d+2*h+d);m.set(t.subarray(0,d),0);const p=d,g=d+h,k=d;for(let e=0;e<h;e++)m[p+e]=t[k+2*e],m[g+e]=t[k+2*e+1];const y=yield o(i,c,u,1);m.set(y,d+2*h);const b={format:"I420A",codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[m.buffer]};return new VideoFrame(m,b)}),o=(t,i,r,n)=>Y(null,null,function*(){const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),yield t.copyTo(e);const a=t.format;if("RGBA"===a||"BGRA"===a||"RGBX"===a||"BGRX"===a){const t="RGBA"===a||"RGBX"===a?0:2,n=i*r;for(let i=0;i<n;i++)e[i]=e[4*i+t];return e.subarray(0,n)}return e.subarray(0,i*r*n)})},Xo=e=>{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class $o extends qo{constructor(e,t={}){if(!(e instanceof rl))throw new TypeError("videoTrack must be an InputVideoTrack.");Xo(t),super(),this._track=e,this._decoderOptions=t}_createDecoder(e,t){return Y(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(ot("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getRotation();let n=yield this._track.getDecoderConfig();const s=yield this._track.getTimeResolution();return oe(i&&n),n=V(H({},n),{hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency}),new Ho(e,t,i,n,r,s)})}_createPacketSink(){return new zo(this._track)}getSample(e){return Y(this,arguments,function*(e,t={}){Oo(e);try{for(var i,r,n,s=te(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Go{constructor(e,t={}){var i,r,n;if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof rl))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&ko(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&Xo(t.decoderOptions),this._videoTrack=e,this._alpha=null!=(i=t.alpha)&&i,this._options=t,this._fit=null!=(r=t.fit)?r:"fill",this._videoSampleSink=new $o(e,t.decoderOptions),this._canvasPool=Array.from({length:null!=(n=t.poolSize)?n:0},()=>null)}_ensureInit(){var e;return null!=(e=this._initPromise)?e:this._initPromise=(()=>Y(this,null,function*(){var e;const t=this._options,i=this._videoTrack,r=null!=(e=t.rotation)?e:yield i.getRotation(),n=yield i.getSquarePixelWidth(),s=yield i.getSquarePixelHeight(),[a,o]=r%180===0?[n,s]:[s,n];let l=t.crop;l&&(l=go(l,a,o));let[c,u]=l?[l.width,l.height]:[a,o];const d=c/u;void 0!==t.width&&void 0===t.height?(c=t.width,u=Math.round(c/d)):void 0===t.width&&void 0!==t.height?(u=t.height,c=Math.round(u*d)):void 0!==t.width&&void 0!==t.height&&(c=t.width,u=t.height),this._width=c,this._height=u,this._rotation=r,this._crop=l}))()}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],n=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),n=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||nt()});oe(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:n,fillBlack:!this._alpha&&nt()});const a={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),a}getCanvas(e,t){return Y(this,null,function*(){Oo(e),yield this._ensureInit();const i=yield this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)})}canvases(e,t,i){return Z(this,null,function*(){yield new J(this._ensureInit()),yield*ee(Ue(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e)))})}canvasesAtTimestamps(e,t){return Z(this,null,function*(){yield new J(this._ensureInit()),yield*ee(Ue(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e)))})}}class Qo extends Uo{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new et,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const n=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const n=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(n*s)/s),e(t)},s=Do.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof Co))throw new TypeError("The argument passed to onSample must be an AudioSample.");n(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{n(new Co(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(oe(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(oe(this.decoder),null!=this.expectedFirstTimestamp||(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}flush(){return Y(this,null,function*(){this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(oe(this.decoder),yield this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0})}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(oe(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class Yo extends Uo{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,oe(Xi.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:n,littleEndian:s}=ar(this.codec);switch(this.inputSampleSize=n,n){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-q(2,7):"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const n=(1<<i|(15&r)<<i-4|1<<i-5)-33;return 0===t?n:-n})(e.getUint8(t)):"alaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let n=0;return n=4!==i?1<<i|(15&r)<<i-4|1<<i-5:r<<1|1,0===t?n:-n})(e.getUint8(t)):oe(!1);break;case 2:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint16(t,s)-q(2,15):"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):oe(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>Le(e,t,s)-q(2,23):"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>Le(e,t,i)<<8>>8)(e,t,s):oe(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-q(2,31):"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):oe(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):oe(!1);break;default:Oe(n),oe(!1)}switch(n){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+q(2,7)));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:Oe(n),oe(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=me(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,n=new ArrayBuffer(r),s=new DataView(n);for(let c=0;c<i*this.decoderConfig.numberOfChannels;c++){const e=c*this.inputSampleSize,i=c*this.outputSampleSize,r=this.readInputValue(t,e);this.writeOutputValue(s,i,r)}const a=i/this.decoderConfig.sampleRate;(null===this.currentTimestamp||Math.abs(e.timestamp-this.currentTimestamp)>=a)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=a;const l=new Co({format:this.outputFormat,data:n,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(l)}flush(){return Y(this,null,function*(){})}close(){}}class Jo extends qo{constructor(e){if(!(e instanceof nl))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}_createDecoder(e,t){return Y(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(ot("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getDecoderConfig();return oe(i&&r),Xi.includes(r.codec)?new Yo(e,t,r):new Qo(e,t,i,r)})}_createPacketSink(){return new zo(this._track)}getSample(e){return Y(this,arguments,function*(e,t={}){Oo(e);try{for(var i,r,n,s=te(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Zo{constructor(e){if(!(e instanceof nl))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new Jo(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}getBuffer(e,t){return Y(this,null,function*(){Oo(e);const i=yield this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)})}buffers(e,t,i){return Ue(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return Ue(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class el{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof rl}isAudioTrack(){return this instanceof nl}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}getInternalCodecId(){return Y(this,null,function*(){return this._backing.getInternalCodecId()})}get internalCodecId(){return tl(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}getLanguageCode(){return Y(this,null,function*(){return this._backing.getLanguageCode()})}get languageCode(){return tl(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}getName(){return Y(this,null,function*(){return this._backing.getName()})}get name(){return tl(this._backing.getName(),"name","getName")}getTimeResolution(){return Y(this,null,function*(){return this._backing.getTimeResolution()})}get timeResolution(){return tl(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}isRelativeToUnixEpoch(){return Y(this,null,function*(){return this._backing.isRelativeToUnixEpoch()})}getUnixTimeForTimestamp(e){return Y(this,null,function*(){return this._backing.getUnixTimeForTimestamp(e)})}hasUnixTimeMapping(){return Y(this,null,function*(){return null!==(yield this._backing.getUnixTimeForTimestamp(yield this.getFirstTimestamp()))})}getDisposition(){return Y(this,null,function*(){return this._backing.getDisposition()})}get disposition(){return tl(this._backing.getDisposition(),"disposition","getDisposition")}getBitrate(){return Y(this,null,function*(){return this._backing.getBitrate()})}getAverageBitrate(){return Y(this,null,function*(){return this._backing.getAverageBitrate()})}getFirstTimestamp(){return Y(this,null,function*(){var e;const t=yield this._backing.getFirstPacket({metadataOnly:!0});return null!=(e=null==t?void 0:t.timestamp)?e:0})}computeDuration(e){return Y(this,null,function*(){var t,i;const r=yield this._backing.getPacket(1/0,H({metadataOnly:!0},e)),n=(null!=(t=null==r?void 0:r.timestamp)?t:0)+(null!=(i=null==r?void 0:r.duration)?i:0);return je(n,yield this.getTimeResolution())})}getDurationFromMetadata(){return Y(this,arguments,function*(e={}){return this._backing.getDurationFromMetadata(e)})}computePacketStats(e=1/0,t){return Y(this,null,function*(){const i=new zo(this);let r=1/0,n=-1/0,s=0,a=0;try{for(var o,l,c,u=te(i.packets(void 0,void 0,H({metadataOnly:!0},t)));o=!(l=yield u.next()).done;o=!1){const t=l.value;if(s>=e&&t.timestamp>=n)break;r=Math.min(r,t.timestamp),n=Math.max(n,t.timestamp+t.duration),s++,a+=t.byteLength}}catch(l){c=[l]}finally{try{o&&(l=u.return)&&(yield l.call(u))}finally{if(c)throw c[0]}}return{packetCount:s,averagePacketRate:s?Number((s/(n-r)).toPrecision(16)):0,averageBitrate:s?Number((8*a/(n-r)).toPrecision(16)):0}})}isLive(){return Y(this,null,function*(){return null!==(yield this._backing.getLiveRefreshInterval())})}getLiveRefreshInterval(){return Y(this,null,function*(){return this._backing.getLiveRefreshInterval()})}canBePairedWith(e){if(!(e instanceof el))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&(this._backing.getPairingMask()&e._backing.getPairingMask())!==BigInt("0")}getPairableTracks(e){return Y(this,null,function*(){return this.input.getTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPairableVideoTracks(e){return Y(this,null,function*(){return this.input.getVideoTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPairableAudioTracks(e){return Y(this,null,function*(){return this.input.getAudioTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableVideoTrack(e){return Y(this,null,function*(){return this.input.getPrimaryVideoTrack(ll({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableAudioTrack(e){return Y(this,null,function*(){return this.input.getPrimaryAudioTrack(ll({filter:e=>e.canBePairedWith(this)},e))})}hasPairableTrack(e){return Y(this,null,function*(){e&&(e=il(e));const t=yield this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||(yield e(i))))return!0;return!1})}hasPairableVideoTrack(e){return e&&(e=il(e)),this.hasPairableTrack(t=>Y(this,null,function*(){return t.isVideoTrack()&&(!e||(yield e(t)))}))}hasPairableAudioTrack(e){return e&&(e=il(e)),this.hasPairableTrack(t=>Y(this,null,function*(){return t.isAudioTrack()&&(!e||(yield e(t)))}))}}const tl=(e,t,i)=>{if(ct(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},il=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return ct(r)?r.then(i):i(r)}:void 0};class rl extends el{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}getCodec(){return Y(this,null,function*(){return this._backing.getCodec()})}get codec(){return tl(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return Y(this,null,function*(){var e,t,i;return null!=(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:"prores"===(yield this._backing.getCodec())})}getCodedWidth(){return Y(this,null,function*(){return this._backing.getCodedWidth()})}get codedWidth(){return tl(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}getCodedHeight(){return Y(this,null,function*(){return this._backing.getCodedHeight()})}get codedHeight(){return tl(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}getRotation(){return Y(this,null,function*(){return this._backing.getRotation()})}get rotation(){return tl(this._backing.getRotation(),"rotation","getRotation")}getSquarePixelWidth(){return Y(this,null,function*(){return this._backing.getSquarePixelWidth()})}get squarePixelWidth(){return tl(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}getSquarePixelHeight(){return Y(this,null,function*(){return this._backing.getSquarePixelHeight()})}get squarePixelHeight(){return tl(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}getPixelAspectRatio(){return Y(this,null,function*(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=yt({num:(yield this.getSquarePixelWidth())*(yield this.getCodedHeight()),den:(yield this.getSquarePixelHeight())*(yield this.getCodedWidth())})})}get pixelAspectRatio(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=yt({num:tl(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*tl(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:tl(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*tl(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")})}getDisplayWidth(){return Y(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()})}get displayWidth(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(void 0!==i){const e=tl(i,"displayWidth","getDisplayWidth");if(null!==e)return e}const r=tl(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return tl(r,"displayWidth","getDisplayWidth")}getDisplayHeight(){return Y(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()})}get displayHeight(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(void 0!==i){const e=tl(i,"displayHeight","getDisplayHeight");if(null!==e)return e}const r=tl(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return tl(r,"displayHeight","getDisplayHeight")}getColorSpace(){return Y(this,null,function*(){return this._backing.getColorSpace()})}hasHighDynamicRange(){return Y(this,null,function*(){const e=yield this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix})}canBeTransparent(){return Y(this,null,function*(){return this._backing.canBeTransparent()})}getDecoderConfig(){return Y(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return Y(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return Y(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(oe(null!==t),Mo.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(yield VideoDecoder.isConfigSupported(e)).supported}catch(e){return Pt._error("Error during decodability check:",e),!1}})}determinePacketType(e){return Y(this,null,function*(){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=yield this.getCodec();if(null===t)return null;const i=yield this.getDecoderConfig();return oe(i),wi(t,i,e.data)})}computeFrameRateMetrics(){return Y(this,arguments,function*(e={}){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!mt(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const r=yield this.getTimeResolution(),n=null!=(t=e.targetPacketCount)?t:256,s=new zo(this),a=[];let o=-1/0,l=0;try{for(var c,u,d,h=te(s.packets(void 0,void 0,{metadataOnly:!0}));c=!(u=yield h.next()).done;c=!1){const e=u.value;if(a.length>=n&&e.timestamp>=o)break;a.push(e.timestamp),o=Math.max(o,e.timestamp),l++}}catch(u){d=[u]}finally{try{c&&(u=h.return)&&(yield u.call(h))}finally{if(d)throw d[0]}}const f=new Float64Array(a.length);for(let R=0;R<a.length;R++)f[R]=Math.round(a[R]*r);f.sort();let m=1;for(let R=1;R<f.length;R++)f[R]!==f[m-1]&&(f[m++]=f[R]);if(m<2)return{underlyingFrameRate:null,bestGuessFrameRate:r,minFrameRate:r,maxFrameRate:r,averageFrameRate:r,medianFrameRate:r,frameRateIsConstant:!0,probedPacketCount:l};const p=f.subarray(0,m),g=ul(p,r),k=null!=g?g:r,y=null!==g?r/g:null,b=new Map;let T=1/0,v=-1/0,w=0;for(let R=1;R<m;R++){const e=p[R]-p[R-1],t=null!==y?Math.max(1,Math.round(e/y)):e;b.set(t,(null!=(i=b.get(t))?i:0)+1),T=Math.min(T,t),v=Math.max(v,t),w+=t}const S=m-1,P=[...b.keys()].sort((e,t)=>e-t),I=S-1>>1,x=S>>1;let C=0,B=0,E=0;for(const R of P)if(E+=b.get(R),0===C&&E>I&&(C=R),E>x){B=R;break}const _=(k/C+k/B)/2;return{underlyingFrameRate:g,bestGuessFrameRate:null!==g?g:hl(_),minFrameRate:k/v,maxFrameRate:k/T,averageFrameRate:k*S/w,medianFrameRate:_,frameRateIsConstant:null!==g&&1===T&&1===v,probedPacketCount:l}})}}class nl extends el{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}getCodec(){return Y(this,null,function*(){return this._backing.getCodec()})}get codec(){return tl(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return Y(this,null,function*(){var e,t,i;return null==(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))||i})}getNumberOfChannels(){return Y(this,null,function*(){return this._backing.getNumberOfChannels()})}get numberOfChannels(){return tl(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}getSampleRate(){return Y(this,null,function*(){return this._backing.getSampleRate()})}get sampleRate(){return tl(this._backing.getSampleRate(),"sampleRate","getSampleRate")}getDecoderConfig(){return Y(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return Y(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return Y(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(oe(null!==t),Do.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(yield AudioDecoder.isConfigSupported(e)).supported}catch(e){return Pt._error("Error during decodability check:",e),!1}})}determinePacketType(e){return Y(this,null,function*(){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");return null===(yield this.getCodec())?null:"key"})}}const sl=e=>-(null!=e?e:-1/0),al=e=>-e,ol=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when provided, must be a function.");if(void 0!==e.sortBy&&"function"!==typeof e.sortBy)throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:e.filter?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("query.filter must return or resolve to a boolean.");return e},r=e.filter(t);return ct(r)?r.then(i):i(r)}:void 0,sortBy:e.sortBy?t=>{const i=e=>{if("number"!==typeof e&&(!Array.isArray(e)||!e.every(e=>"number"===typeof e)))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return e},r=e.sortBy(t);return ct(r)?r.then(i):i(r)}:void 0}},ll=(e,t)=>({filter:(null==e?void 0:e.filter)||(null==t?void 0:t.filter)?i=>{var r,n;const s=null==(n=null==(r=null==e?void 0:e.filter)?void 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t?(i=xl(e,!0),r=xl(e,!0)):(r=xl(e,!1),i=xl(e,!1)),4294967296*r+i},Rl=e=>4294967296*Cl(e)+Cl(e),Fl=e=>4294967296*El(e)+Cl(e),Al=e=>{const t=Bl(e),i=(e=>{bl(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},Ml=e=>{bl(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Dl=e=>{bl(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},Nl=(e,t)=>{bl(e,t);let i="";for(let r=0;r<t;r++)i+=String.fromCharCode(e.bytes[e.bufferPos++]);return i},Ol=(e,t,i)=>pe.decode(Tl(e,t)).split("\n").map(e=>e.trim()).filter(e=>{var t;return e.length>0&&!(null==(t=null==i?void 0:i.ignore)?void 0:t.call(i,e))});var Ll,zl,Ul,ql;(zl=Ll||(Ll={}))[zl.Unsynchronisation=128]="Unsynchronisation",zl[zl.ExtendedHeader=64]="ExtendedHeader",zl[zl.ExperimentalIndicator=32]="ExperimentalIndicator",zl[zl.Footer=16]="Footer",(ql=Ul||(Ul={}))[ql.ISO_8859_1=0]="ISO_8859_1",ql[ql.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",ql[ql.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",ql[ql.UTF_8=3]="UTF_8";const Wl=128,Hl=10,Vl=["Blues","Classic rock","Country","Dance","Disco","Funk","Grunge","Hip-hop","Jazz","Metal","New age","Oldies","Other","Pop","Rhythm and blues","Rap","Reggae","Rock","Techno","Industrial","Alternative","Ska","Death metal","Pranks","Soundtrack","Euro-techno","Ambient","Trip-hop","Vocal","Jazz & funk","Fusion","Trance","Classical","Instrumental","Acid","House","Game","Sound clip","Gospel","Noise","Alternative rock","Bass","Soul","Punk","Space","Meditative","Instrumental pop","Instrumental rock","Ethnic","Gothic","Darkwave","Techno-industrial","Electronic","Pop-folk","Eurodance","Dream","Southern 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u;if(0===c[28]&&0!==c[29]){const i=c[29];i>0&&(null!=t.trackNumber||(t.trackNumber=i)),e.skip(-30),u=Kl(e,28),e.skip(2)}else e.skip(-30),u=Kl(e,30);u&&(null!=t.comment||(t.comment=u));const d=vl(e);d<Vl.length&&(null!=t.genre||(t.genre=Vl[d]))},Kl=(e,t)=>{const i=Tl(e,t),r=ut(i.indexOf(0),i.length),n=i.subarray(0,r);let s="";for(let a=0;a<n.length;a++)s+=String.fromCharCode(n[a]);return s.trimEnd()},Xl=e=>{const t=e.filePos,i=Nl(e,3),r=vl(e),n=vl(e),s=vl(e),a=Cl(e);if("ID3"!==i||255===r||255===n||0!==(2155905152&a))return e.filePos=t,null;let o=mr(a);return s&Ll.Footer&&(o+=Hl),{majorVersion:r,revision:n,flags:s,size:o}},$l=(e,t,i)=>{var r,n,s,a,o,l;if(![2,3,4].includes(t.majorVersion))return void Pt._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Ll.Footer?t.size-Hl:t.size,u=Tl(e,c),d=new Gl(t,u);if(t.flags&Ll.Unsynchronisation&&3===t.majorVersion&&d.ununsynchronizeAll(),t.flags&Ll.ExtendedHeader){const 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e=null!=(n=(r=i.raw).TXXX)?n:r.TXXX={},t=d.readId3V2TextEncoding(),s=d.readId3V2Text(t,u),a=d.readId3V2Text(t,u);null!=e[s]||(e[s]=a)}else"T"===e.id[0]?null!=(s=i.raw)[a=e.id]||(s[a]=d.readId3V2EncodingAndText(u)):null!=(o=i.raw)[l=e.id]||(o[l]=d.readBytes(e.size));switch(d.pos=c,e.id){case"TIT2":case"TT2":null!=i.title||(i.title=d.readId3V2EncodingAndText(u));break;case"TIT3":case"TT3":null!=i.description||(i.description=d.readId3V2EncodingAndText(u));break;case"TPE1":case"TP1":null!=i.artist||(i.artist=d.readId3V2EncodingAndText(u));break;case"TALB":case"TAL":null!=i.album||(i.album=d.readId3V2EncodingAndText(u));break;case"TPE2":case"TP2":null!=i.albumArtist||(i.albumArtist=d.readId3V2EncodingAndText(u));break;case"TRCK":case"TRK":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.trackNumber||(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.tracksTotal||(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.discNumber||(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.discsTotal||(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=d.readId3V2EncodingAndText(u);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==Vl[e]){null!=i.genre||(i.genre=Vl[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==Vl[e]){null!=i.genre||(i.genre=Vl[e]);break}}null!=i.genre||(i.genre=e)}break;case"TDRC":case"TDAT":{const e=d.readId3V2EncodingAndText(u),t=new Date(e);Number.isNaN(t.getTime())||null!=i.date||(i.date=t)}break;case"TYER":case"TYE":{const e=d.readId3V2EncodingAndText(u),t=Number.parseInt(e,10);Number.isInteger(t)&&(null!=i.date||(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.lyrics||(i.lyrics=d.readId3V2Text(e,u))}break;case"COMM":case"COM":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.comment||(i.comment=d.readId3V2Text(e,u))}break;case"APIC":case"PIC":{const e=d.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=d.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=d.readId3V2Text(e,u);const n=d.readU8(),s=d.readId3V2Text(e,u).trimEnd(),a=u-d.pos;if(a>=0){const e=d.readBytes(a);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===n?"coverFront":4===n?"coverBack":"unknown",description:s})}}break;default:d.pos+=e.size}d.pos=u}}};class Gl{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 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this.pos=i+Math.min(e+1,r.length),pe.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class Ql{constructor(e){this.host=e,this.closed=!1,this.resumes=new WeakMap}ensure(e){if(this.closed)return null;if(this.host.audioContext)return this.host.audioContext;const t=window.AudioContext||window.webkitAudioContext;let i;try{i=new t({sampleRate:e})}catch(n){i=new t}if(this.closed)return i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null;let r=null;try{r=i.createGain(),r.connect(i.destination);const e=this.host.muted?0:this.host.volume;return r.gain.value=e*e,this.closed?(r.disconnect(),i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null):(this.host.audioContext=i,this.host.gainNode=r,i)}catch(s){try{null==r||r.disconnect()}catch(a){console.warn("MediaBunny gain setup cleanup:",a)}throw i.close().catch(e=>console.warn("MediaBunny context 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n=function(e,t,i,r){const n=e.audioContextStartTime+(t-e.playbackTimeAtStart)/e.playbackRate,s=(n+i/e.playbackRate-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;return{startAt:Math.max(n,r),offset:n<r?(r-n)*e.playbackRate:null,endMediaTime:s}}(this.host,t,e.duration,i.currentTime);if(null!==n.offset&&n.offset>=e.duration)return;const s=i.createBufferSource();this.host.queuedNodes.add(s);try{s.buffer=e,s.connect(r),s.playbackRate.value=this.host.playbackRate,s.onended=()=>{if(this.host.queuedNodes.has(s))try{this.release(s,!1)}catch(e){console.warn("MediaBunny ended node cleanup:",e)}},null===n.offset?s.start(n.startAt):s.start(n.startAt,n.offset),this.host.latestScheduledEndTime=Math.max(this.host.latestScheduledEndTime,n.endMediaTime)}catch(a){try{this.release(s,!0)}catch(o){console.warn("MediaBunny audio node cleanup:",o)}throw a}}}const Jl=Symbol("cancelled");class Zl{constructor(){this.cancelled=!1,this.waits=new Set,this.timers=new Map}wait(e){return new 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t=this.closing.get(e);t||(t=Promise.resolve().then(()=>e.return()).then(()=>{}),this.closing.set(e,t)),yield t})}cancel(){var e;null==(e=this.task)||e.cancel(),this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e))}run(e){return Y(this,null,function*(){if(this.host.asyncId!==e)return;this.cancel();const t=this.host.audioSink,i=this.host.audioContext;if(!t||!i||this.host.paused||this.host.asyncId!==e)return;const r=new Zl;this.task=r;let n=null;const s=()=>!r.cancelled&&this.task===r&&this.host.asyncId===e&&!this.host.paused&&this.host.audioContext===i&&(!n||this.host.audioIterator===n);try{for(n=t.buffers(this.host.currentTime),this.host.audioIterator=n;s();){const e=[];let t=!1;for(let i=0;i<16;i++){const i=yield r.wait(n.next());if(i===Jl||!s())return;if(i.done){t=!0;break}e.push(i.value)}if(e.length&&"suspended"===i.state){if((yield r.wait(this.contexts.resume(i)))===Jl||!s())return;tc(this.host.events,s,["canplay","playing"])}for(const i of e){if(!s())return;this.nodes.schedule(i)}if(t)return;if(!(yield r.delay(0))||!s())return;for(;this.host.latestScheduledEndTime-this.host.currentTime>1;)if(!(yield r.delay(50))||!s())return}}catch(a){if(s())throw a}finally{r.cancel(),this.task===r&&(this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e)))}})}}class rc{constructor(e,d){X(this,u),X(this,t,!1),X(this,i,0),X(this,r),X(this,n),X(this,s),X(this,a,null),X(this,o,null),X(this,l,null),X(this,c),this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set,$(this,r,new Ql(this)),$(this,n,new Yl(this)),$(this,s,new ic(this,K(this,r),K(this,n))),$(this,c,d)}get currentTime(){return(e=this).paused||!e.audioContext?e.playbackTimeAtStart:(e.audioContext.currentTime-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;var e}ensureAudioContext(e){K(this,r).ensure(e)}updateGain(){K(this,r).updateGain()}stopQueuedNodes(){K(this,n).stop()}stopIterator(){return Y(this,null,function*(){yield K(this,s).stopIterator()})}handleNoAudioTrack(){K(this,t)||(this.audioSink=null,this.ensureAudioContext())}cancelPending(){Q(this,i)._++;try{this.pause()}finally{$(this,l,null),this.input=null,this.audioSink=null}}load(e,r){return Y(this,null,function*(){if(K(this,t))return;this.cancelPending();const n=K(this,i);this.playbackTimeAtStart=0,this.audioContextStartTime=0,this.latestScheduledEndTime=0;const s=Promise.resolve().then(()=>G(this,u,d).call(this,e,n,r));$(this,l,s);try{yield s}finally{K(this,l)===s&&$(this,l,null)}})}runIterator(e){return Y(this,null,function*(){K(this,t)||(yield K(this,s).run(e))})}play(){return Y(this,null,function*(){if(K(this,t))return;if(K(this,o))return K(this,o);if(!this.paused)return;const e=new Zl;$(this,a,e);const r=K(this,i),n=G(this,u,f).call(this,e,r);$(this,o,n);try{yield n}finally{K(this,a)===e&&($(this,a,null),$(this,o,null))}})}pause(){var e;this.paused||(this.playbackTimeAtStart=this.currentTime),this.paused=!0,this.asyncId++,null==(e=K(this,a))||e.cancel(),$(this,a,null),$(this,o,null),K(this,s).cancel(),this.stopQueuedNodes()}seek(e){return Y(this,null,function*(){var i,r;if(K(this,t))return;const n=!this.paused;K(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=null!=(r=null==(i=this.audioContext)?void 0:i.currentTime)?r:0,this.latestScheduledEndTime=this.playbackTimeAtStart;const a=++this.asyncId;n&&G(this,u,h).call(this,a)})}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){var i,r;if(K(this,t)||e===this.playbackRate)return;const n=this.currentTime;K(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=n,this.audioContextStartTime=null!=(r=null==(i=this.audioContext)?void 0:i.currentTime)?r:0,this.playbackRate=e,this.latestScheduledEndTime=n;const a=++this.asyncId;this.paused||G(this,u,h).call(this,a)}destroy(){if(K(this,t))return;$(this,t,!0),Q(this,i)._++;const e=[];for(const t of[()=>this.pause(),()=>K(this,r).destroy()])try{t()}catch(n){e.push(n)}if(this.input=null,this.audioSink=null,$(this,l,null),e.length)throw e[0]}}t=new WeakMap,i=new WeakMap,r=new WeakMap,n=new WeakMap,s=new WeakMap,a=new WeakMap,o=new WeakMap,l=new WeakMap,c=new WeakMap,u=new WeakSet,d=function(e,r,n){return Y(this,arguments,function*({input:e,audioTrack:r,duration:n},s,a){const o=()=>!K(this,t)&&K(this,i)===s;if(o()){this.input=e,this.duration=n;try{const e=r&&null!==r.codec&&(yield r.canDecode());if(!o())return;if(e){if(this.ensureAudioContext(r.sampleRate),!o())return;this.audioSink=new Zo(r)}else this.handleNoAudioTrack();o()&&(null==a||a())}catch(l){if(o())throw l}}})},h=function(e){this.runIterator(e).catch(i=>{if(!K(this,t)&&e===this.asyncId){try{this.pause()}catch(r){console.warn("MediaBunny audio failure cleanup:",r)}try{K(this,c)?K(this,c).call(this,i):this.events.emit("error",i)}catch(r){console.warn("MediaBunny audio error listener:",r)}}})},f=function(e,n){return Y(this,null,function*(){const s=()=>!K(this,t)&&!e.cancelled&&K(this,i)===n;try{const t=K(this,r).ensure();if(!t||!s())return;if("suspended"===t.state){if((yield e.wait(K(this,r).resume(t)))===Jl||!s())return}if(K(this,l)){if((yield e.wait(K(this,l)))===Jl||!s())return}this.audioContextStartTime=t.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1,G(this,u,h).call(this,++this.asyncId)}catch(a){if(s())throw a}})};const nc=new WeakMap;function sc(e,t,i){return Y(this,null,function*(){var r;const{input:n,loadSeq:s}=e;if(!(null==(r=e.media)?void 0:r.isHls)||!n||e.destroyed)return;const a={};nc.set(e,a);const o=()=>!e.destroyed&&e.loadSeq===s&&e.input===n&&nc.get(e)===a;for(;o();){const r=e.media;if(!(null==r?void 0:r.isHls))return;let s;try{s=yield i(n,r,t,o)}catch(l){if(!o())return;if(e.media===r)throw l;continue}if(!o())return;if(e.media===r){if(s)try{yield e.replaceTracks(s)}catch(l){if(o())throw l}return}}})}function ac(e,t,i,r){return Y(this,null,function*(){var n;const s=yield e.getVideoTracks();if(!r())return null;const a="auto"===i?yield e.getPrimaryVideoTrack():null!=(n=s.find(e=>e.id===i))?n:t.videoTrack;if(!r()||!a)return null;let o=t.audioTrack,l=t.audioMode;return o&&a.canBePairedWith(o)||(o=yield a.getPrimaryPairableAudioTrack(),l="auto"),{videoTrack:a,audioTrack:o,videoMode:"auto"===i?"auto":"manual",audioMode:l}})}function oc(e,t,i,r){return Y(this,null,function*(){var n;const s=yield e.getAudioTracks();if(!r())return null;const a="auto"===i?t.videoTrack?yield t.videoTrack.getPrimaryPairableAudioTrack():yield e.getPrimaryAudioTrack():null!=(n=s.find(e=>e.id===i))?n:t.audioTrack;if(!r()||!a)return null;let o=t.videoTrack,l=t.videoMode;return o&&a.canBePairedWith(o)||(o=yield a.getPrimaryPairableVideoTrack(),l="auto"),{videoTrack:o,audioTrack:a,videoMode:l,audioMode:"auto"===i?"auto":"manual"}})}function lc(e){return Y(this,null,function*(){var t,i;return null!=(i=null!=(t=yield e.getAverageBitrate())?t:yield e.getBitrate())?i:0})}const cc=/\.m3u8(?:$|[?#])/i;function uc(e){return"string"===typeof e&&cc.test(e)}function dc(e){const t=function(e){return"string"===typeof e?new ua(e):e instanceof Blob?new aa(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new fa(e):null!=e?e:null}(e);return t?new ml({source:t,formats:uc(e)?eo:Za}):null}class hc{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){var e;return null==(e=this.controller)?void 0:e.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}wait(e,t){return Y(this,null,function*(){try{yield Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}})}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,null==e||e.dispose()}cancel(){var e;if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),null==(e=this.controller)||e.abort(),this.disposeInput()}}}function fc(e){return Y(this,arguments,function*({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),n=t||i,s=Boolean(n&&(yield n.isLive()));let a=Number.NaN;return r.length>0&&(a=yield e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==a||s||(a=yield e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:null!=a?a:Number.NaN})}function mc(){let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}}class pc{constructor(e){this.host=e,this.wanted=!1,this.playing=null,this.seeking=null}operation(){return V(H({},mc()),{source:this.host.loadSeq,complete:mc()})}current(e,t){return!this.host.destroyed&&e.source===this.host.loadSeq&&this[t]===e}cancelPlay(){const e=this.playing;this.playing=null,null==e||e.resolve()}invalidate(){this.cancelPlay(),this.wanted=!1;const e=this.seeking;this.seeking=null,null==e||e.complete.resolve(),null==e||e.resolve(),this.host.seeking=!1}ended(){this.wanted=!1,this.cancelPlay()}stop(){this.host.paused||(this.host.paused=!0,this.stopEngines(),this.host.events.emit("pause"))}stopEngines(){const e=[];for(const i of[()=>this.host.audio.pause(),()=>this.host.video.stop()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}pause(){this.wanted=!1,this.cancelPlay(),this.stop()}play(){if(this.host.destroyed)return Promise.resolve();if(this.wanted=!0,this.playing)return this.playing.promise;if(this.host.ended)return this.seek(0,!0);if(!this.host.paused&&!this.seeking)return Promise.resolve();const e=this.operation();return this.playing=e,this.runPlay(e).then(e.resolve,e.reject),e.promise}runPlay(e){return Y(this,null,function*(){const t=()=>this.current(e,"playing")&&this.wanted;try{for(;this.seeking;)if(yield this.seeking.complete.promise,!t())return;if(!t())return;if(this.host.paused=!1,yield this.host.audio.play(),!t())return void(this.wanted&&!this.host.destroyed||this.host.audio.pause());this.host.video.start(this.host.audio),tc(this.host.events,t,["play","playing"])}catch(i){if(!t())return;this.wanted=!1,this.host.paused=!0;try{this.stopEngines()}catch(r){console.warn("MediaBunny play cleanup error:",r)}throw i}finally{this.playing===e&&(this.playing=null)}})}seek(e,t){return this.position(t=>Y(this,null,function*(){const i=this.host.audio.seek(e),r=t()?this.host.video.seek(e):Promise.resolve();yield Promise.all([i,r])}),["seeked"],!1,t)}replace(e,t){return this.position(i=>Y(this,null,function*(){e.duration=yield fc(e),i()&&(this.host.media=e,yield Promise.all([this.host.video.load(e),this.host.audio.load(e)]),i()&&(ec(this.host),yield Promise.all([this.host.video.seek(t),this.host.audio.seek(t)]),i()&&(this.host.readyState=4,this.host.networkState=1)))}),["loadedmetadata","durationchange","progress","loadeddata","canplay","canplaythrough","seeked"],!0)}position(e,t,i,r){if(this.host.destroyed)return Promise.resolve();this.wanted=null!=r?r:this.seeking?this.wanted:!this.host.paused,this.cancelPlay();const n=this.seeking,s=this.operation();return this.seeking=s,null==n||n.complete.resolve(),null==n||n.resolve(),this.runPosition(s,e,t,i).then(s.resolve,s.reject),s.promise}runPosition(e,t,i,r){return Y(this,null,function*(){const n=()=>this.current(e,"seeking");let s=!1;try{if(r&&this.stop(),!n())return;if(this.host.ended=!1,this.host.seeking=!0,tc(this.host.events,n,["seeking","waiting"]),!n())return;if(r||this.stop(),!n())return;if(yield t(n),!n())return;if(this.host.seeking=!1,e.complete.resolve(),tc(this.host.events,n,i),!n())return;this.seeking=null,s=this.wanted}catch(a){if(!n())return;throw this.host.seeking=!1,this.wanted=!1,this.cancelPlay(),this.host.reportError(a),a}finally{e.complete.resolve(),this.seeking===e&&(this.seeking=null)}s&&(yield this.play())})}}const gc=new WeakMap,kc=new WeakMap;function yc(e){const t=kc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.next()).then(e=>{var t;return null!=(t=e.value)?t:null});kc.set(e,i);const r=()=>{kc.get(e)===i&&kc.delete(e)};return i.then(r,r),i}function bc(e,t,i,r,n){const s=i?Math.max(.06,r/Math.max(1,n)):0;return i&&e<t-s?"skip":e<=t+s?"draw":"queue"}class Tc{constructor(){this.image=null}cancel(){this.image&&(this.image.onload=null,this.image.onerror=null,this.image=null)}draw(e,t,i,r){this.cancel();const n=new Image;this.image=n,n.onload=()=>{if(this.image===n&&t()){this.cancel();try{i(n)}catch(e){r(e)}}},n.onerror=()=>{this.image===n&&this.cancel()},n.src=e}}class vc{constructor(e,t,i,r){this.host=e,this.ready=t,this.draw=i,this.failure=r,this.stopped=!1,this.closed=!1,this.scheduled=null,this.fetching=null}current(e){return!this.closed&&!this.stopped&&this.host.asyncId===e}update(e){return Y(this,null,function*(){var t;const i=this.host.videoIterator;if(!i||!this.ready()||!this.current(e)||this.host.isFetching)return;const r={};this.fetching=r,this.host.isFetching=!0;const n=()=>this.current(e)&&this.host.videoIterator===i;try{for(;n();){const e=yield yc(i);if(!n()||!e)return;const r=null==(t=this.host.audioClock)?void 0:t.currentTime;if(void 0===r)return;const s=bc(e.timestamp,r,this.host.dropLateFrames,this.host.avSyncTolerance,this.host.playbackRate);if("skip"!==s){if("draw"!==s)return void(this.host.nextFrame=e);this.draw(e)}}}catch(s){if(n())throw s}finally{this.fetching===r&&(this.fetching=null,this.host.isFetching=!1)}})}request(e){this.update(e).catch(t=>{this.current(e)&&(this.stop(),this.report(t))})}report(e){try{this.failure(e)}catch(t){console.warn("MediaBunny video error listener:",t)}}cancelFrame(){null!==this.scheduled&&(cancelAnimationFrame(this.scheduled),this.scheduled=null)}schedule(e){if(!this.current(e))return;this.cancelFrame();const t=requestAnimationFrame(()=>{if(this.scheduled===t&&this.current(e)){this.scheduled=null;try{this.render()}catch(i){this.stop(),this.report(i)}}});this.scheduled=t,this.host.rafId=t}render(){const e=this.host.asyncId,t=()=>this.current(e);if(!t()||!this.host.audioClock)return;const i=this.host.audioClock.currentTime,r=Date.now();if(r-this.host.lastTimeUpdate>=this.host.timeupdateInterval){if(this.host.events.emit("timeupdate"),!t())return;this.host.lastTimeUpdate=r}if(this.ready()){if(Number.isFinite(this.host.duration)&&i>=this.host.duration){this.stop(),this.host.stalled=!1;const e=this.host.asyncId;return void tc(this.host.events,()=>!this.closed&&this.host.asyncId===e,["ended","pause","canplay"])}if(this.host.nextFrame&&this.host.nextFrame.timestamp<=i){if(this.draw(this.host.nextFrame),this.host.nextFrame=null,this.request(e),this.host.stalled){if(tc(this.host.events,t,["canplay","playing"]),!t())return;this.host.stalled=!1}}else this.host.nextFrame||(this.request(e),Number.isFinite(this.host.duration)&&i<this.host.duration&&!this.host.stalled&&(this.host.stalled=!0,this.host.events.emit("waiting")));this.schedule(e)}else this.schedule(e)}start(e){this.closed||(this.stop(),this.stopped=!1,this.host.audioClock=e,this.host.stalled=!1,this.host.nextFrame||this.request(this.host.asyncId),this.schedule(this.host.asyncId))}stop(){this.stopped=!0,this.host.asyncId++,this.cancelFrame(),this.fetching=null,this.host.isFetching=!1}destroy(){this.closed||(this.stop(),this.closed=!0)}}class wc{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:n=.12,dropLateFrames:s=!1,poster:a="",preflightRange:o=!1,onError:l}){X(this,P),X(this,m,0),X(this,p,0),X(this,g,null),X(this,k,null),X(this,y,null),X(this,b,!1),X(this,T,!1),X(this,v,new Tc),X(this,w),X(this,S),this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=n,this.dropLateFrames=s,this.poster=a,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1,$(this,S,l),$(this,w,new vc(this,()=>!K(this,T),e=>G(this,P,E).call(this,e,!0),e=>G(this,P,C).call(this,e)))}preflight(e,t,i){return Y(this,null,function*(){return function(e,t,i,r,n=()=>!0){return Y(this,null,function*(){if((null==r?void 0:r.aborted)||!n())return!1;if(!t||"string"!==typeof e||uc(e))return!0;try{const t=yield fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if((null==r?void 0:r.aborted)||!n())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!((null==r?void 0:r.aborted)||!n())&&(console.warn("Preflight check failed:",s),!0)}})}(e,this.preflightRange,this.events,t,i)})}drawPoster(){if(K(this,b)||!this.poster||this.posterDrawn)return;const e=K(this,m);K(this,v).draw(this.poster,()=>G(this,P,I).call(this,e),e=>{this.clear(),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,G(this,P,x).call(this).drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e=>G(this,P,C).call(this,e))}stopIterator(){return Y(this,null,function*(){const e=this.videoIterator;this.videoIterator=null,this.nextFrame=null,yield function(e){if(!e)return Promise.resolve();const t=gc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.return()).then(()=>{});return gc.set(e,i),i}(e)})}clear(){G(this,P,x).call(this).clearRect(0,0,this.canvas.width,this.canvas.height)}cancelPending(){Q(this,m)._++,Q(this,p)._++,this.stop(),G(this,P,B).call(this),K(this,v).cancel(),$(this,T,!1),$(this,g,null),$(this,k,null),$(this,y,null),this.videoSink=null,this.input=null}load(e,t){return Y(this,null,function*(){if(K(this,b))return;this.cancelPending();const i=K(this,m),r=K(this,p);$(this,T,!0);const n=Promise.resolve().then(()=>G(this,P,_).call(this,e,i,r,t));$(this,g,n);try{yield n}finally{K(this,g)===n&&$(this,g,null)}})}handleNoVideoTrack(){K(this,b)||(this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster())}resetIterator(e){return Y(this,null,function*(){if(K(this,b))return;const t=K(this,m),i=++Q(this,p)._,r=K(this,g);this.stop(),K(this,v).cancel(),$(this,T,!0);try{r&&(yield r),yield G(this,P,R).call(this,e,t,i)}catch(n){if(G(this,P,I).call(this,t)&&K(this,p)===i)throw G(this,P,B).call(this),n}finally{G(this,P,I).call(this,t)&&K(this,p)===i&&$(this,T,!1)}})}updateNextFrame(e){return Y(this,null,function*(){yield K(this,w).update(e)})}render(){K(this,w).render()}start(e){K(this,w).start(e)}stop(){K(this,w).stop()}seek(e){return Y(this,null,function*(){yield this.resetIterator(e)})}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){K(this,b)||($(this,b,!0),Q(this,m)._++,K(this,w).destroy(),K(this,v).cancel(),G(this,P,B).call(this),this.posterDrawn=!1,$(this,k,null),$(this,y,null),this.videoSink=null,this.input=null,this.audioClock=null)}}m=new WeakMap,p=new WeakMap,g=new WeakMap,k=new WeakMap,y=new WeakMap,b=new WeakMap,T=new WeakMap,v=new WeakMap,w=new WeakMap,S=new WeakMap,P=new WeakSet,I=function(e){return!K(this,b)&&K(this,m)===e},x=function(){if(!this.ctx)throw new Error("Canvas 2D context is unavailable.");return this.ctx},C=function(e){K(this,b)||(G(this,P,B).call(this),K(this,S)?K(this,S).call(this,e):this.events.emit("error",e))},B=function(){this.stopIterator().catch(e=>console.warn("MediaBunny iterator cleanup error:",e))},E=function(e,t){K(this,v).cancel(),t&&this.clear(),G(this,P,x).call(this).drawImage(e.canvas,0,0)},_=function(e,t,i,r){return Y(this,null,function*(){if(G(this,P,I).call(this,t))try{this.clear(),this.posterDrawn=!1;const{input:n,videoTrack:s,duration:a}=e;if(this.input=n,this.duration=a,!s)return this.handleNoVideoTrack(),void(null==r||r());const o=null!==s.codec&&(yield s.canDecode());if(!G(this,P,I).call(this,t))return;if(!o)return this.handleNoVideoTrack(),void(null==r||r());const l=yield s.canBeTransparent();if(!G(this,P,I).call(this,t))return;$(this,k,()=>new Go(s,{poolSize:2,fit:"contain",alpha:l})),this.videoSink=K(this,k).call(this),this.width=s.displayWidth,this.height=s.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,null==r||r(),G(this,P,I).call(this,t)&&(yield G(this,P,R).call(this,0,t,i))}catch(n){if(G(this,P,I).call(this,t))throw G(this,P,B).call(this),n}finally{G(this,P,I).call(this,t)&&K(this,p)===i&&$(this,T,!1)}})},R=function(e,t,i){return Y(this,null,function*(){if(!G(this,P,I).call(this,t)||K(this,p)!==i)return;G(this,P,B).call(this),K(this,k)&&this.videoSink===K(this,y)&&(this.videoSink=K(this,k).call(this));const r=this.videoSink;if(!r||!G(this,P,I).call(this,t))return;$(this,y,r);const n=r.canvases(e);this.videoIterator=n;const s=()=>G(this,P,I).call(this,t)&&K(this,p)===i&&this.videoIterator===n,a=yield yc(n);if(!s())return;const o=yield yc(n);s()&&(this.nextFrame=o,a?G(this,P,E).call(this,a,!1):this.drawPoster())})};class Sc{constructor({canvas:e,ctx:t,events:i,option:r={}}){var n,s,a,o,l;X(this,F),this.events=i,this.option=r,this.audio=new rc(i,e=>{try{this.pause()}catch(t){console.warn("MediaBunny audio coordinator cleanup:",t)}this.reportError(e)}),this.video=new wc({canvas:e,ctx:t,events:i,timeupdateInterval:null!=(n=r.timeupdateInterval)?n:250,avSyncTolerance:null!=(s=r.avSyncTolerance)?s:.12,dropLateFrames:null!=(a=r.dropLateFrames)&&a,poster:null!=(o=r.poster)?o:"",preflightRange:null!=(l=r.preflightRange)&&l,onError:e=>{try{this.pause()}catch(t){console.warn("MediaBunny video failure cleanup:",t)}this.reportError(e)}}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,$(this,F,new pc(this)),i.addEventListener("ended",()=>{this.destroyed||(this.ended=!0,this.paused=!0,K(this,F).ended(),this.audio.pause())})}load(e){return Y(this,null,function*(){var t,i;if(this.destroyed)return;const r=++this.loadSeq;if(K(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),null==(t=this.loadSession)||t.cancel(),r!==this.loadSeq||this.destroyed)return;if(this.pause(),r!==this.loadSeq||this.destroyed)return;this.disposeInput();const n=new hc;this.loadSession=n,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,n.defer(()=>this.events.emit("waiting")),n.defer(()=>this.events.emit("loadstart"));const s=Number.isFinite(this.option.loadTimeout)&&null!=(i=this.option.loadTimeout)?i:0;try{yield n.wait(this.performLoad(e,r,n),s)}catch(a){if(r!==this.loadSeq)return;const e=++this.loadSeq;if(K(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),n.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.reportError(a)}})}performLoad(e,t){return Y(this,arguments,function*(e,t,i=this.loadSession){const r=()=>!this.destroyed&&t===this.loadSeq;if(!i||!(yield this.video.preflight(e,i.signal,r))||!r())return;const n=dc(e);if(!n)return this.video.handleNoVideoTrack(),void(r()&&this.audio.handleNoAudioTrack());i.own(n);const s=yield function(e,t){return Y(this,null,function*(){const i=yield e.getPrimaryVideoTrack(),r=i?yield i.getPrimaryPairableAudioTrack():yield e.getPrimaryAudioTrack(),n=yield fc({input:e,videoTrack:i,audioTrack:r}),s=i||r,a=uc(t);return{input:e,videoTrack:i,audioTrack:r,duration:n,isLive:!Number.isFinite(n)&&Boolean(s&&(yield s.isLive())),isHls:a,videoMode:a?"auto":"manual",audioMode:a?"auto":"manual"}})}(n,e);if(!r())return;if(!s.videoTrack&&!s.audioTrack)throw this.video.handleNoVideoTrack(),this.video.duration=Number.NaN,this.audio.duration=Number.NaN,new Error("Input has no audio or video tracks.");this.input=n,this.media=s;const a=function(e,t){let i=!1,r=!1,n=!1;function s(s){t()&&!n&&("video"===s?i=!0:r=!0,i&&r&&(n=!0,e()))}return{video:()=>s("video"),audio:()=>s("audio")}}(()=>{ec(this),this.readyState=1,tc(this.events,r,["loadedmetadata","durationchange","progress"])},r);try{const e=this.video.load(s,a.video),t=r()?this.audio.load(s,a.audio):Promise.resolve();if(yield Promise.all([e,t]),!r())return;ec(this),this.readyState=4,this.networkState=1,tc(this.events,r,["loadeddata","canplay","canplaythrough","progress"])}catch(o){if(!r())return;throw console.error("MediaBunny load error:",o),o}})}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){var e;null==(e=this.loadSession)||e.disposeInput(),this.input=null,this.media=null}replaceTracks(e){return Y(this,null,function*(){if(this.media&&!this.destroyed)return K(this,F).replace(H(H({},this.media),e),this.currentTime)})}selectHlsQuality(e){return Y(this,null,function*(){return function(e,t){return sc(e,t,ac)}(this,e)})}selectHlsAudio(e){return Y(this,null,function*(){return function(e,t){return sc(e,t,oc)}(this,e)})}getHlsState(){return Y(this,null,function*(){const e=this.media,t=this.loadSeq;if(this.destroyed)return null;try{const i=yield function(e){return Y(this,null,function*(){var t,i,r,n;if(!(null==e?void 0:e.isHls)||!e.input)return null;const[s,a]=yield Promise.all([e.input.getVideoTracks(),e.videoTrack?e.videoTrack.getPairableAudioTracks():[]]),[o,l]=yield Promise.all([Promise.all(s.map((e,t)=>Y(null,null,function*(){return{id:e.id,track:e,index:t,name:yield e.getName(),height:yield e.getDisplayHeight(),bitrate:yield lc(e)}}))),Promise.all(a.map((e,t)=>Y(null,null,function*(){const i=yield e.getName(),r=yield e.getLanguageCode();return{id:e.id,track:e,index:t,name:i,lang:r,language:r,bitrate:yield lc(e)}})))]);return{levels:o,audios:l,currentLevel:e.videoTrack&&null!=(t=o.find(t=>{var i;return t.id===(null==(i=e.videoTrack)?void 0:i.id)}))?t:null,currentAudio:e.audioTrack&&null!=(i=l.find(t=>{var i;return t.id===(null==(i=e.audioTrack)?void 0:i.id)}))?i:null,videoMode:null!=(r=e.videoMode)?r:"auto",audioMode:null!=(n=e.audioMode)?n:"auto"}})}(e);return this.destroyed||this.loadSeq!==t||this.media!==e?null:i}catch(i){if(this.destroyed||this.loadSeq!==t||this.media!==e)return null;throw i}})}play(){return Y(this,null,function*(){return K(this,F).play()})}pause(){K(this,F).pause()}seek(e){return Y(this,null,function*(){return K(this,F).seek(e)})}setVolume(e,t){this.audio.setVolume(e,t)}setPlaybackRate(e){this.audio.setPlaybackRate(e),this.video.setPlaybackRate(e)}reportError(e){if(this.destroyed)return;const t=e&&"object"===typeof e?Reflect.get(e,"message"):void 0;this.error={code:4,message:"string"===typeof t?t:String(e)},this.networkState=3,this.events.emit("error")}destroy(){if(this.destroyed)return;this.destroyed=!0,this.loadSeq++,K(this,F).invalidate();const e=[];for(const i of[()=>{var e;return null==(e=this.loadSession)?void 0:e.cancel()},()=>this.pause(),()=>this.disposeInput(),()=>this.audio.destroy(),()=>this.video.destroy()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}get currentTime(){return this.audio.currentTime}get duration(){var e,t,i;return null!=(i=null!=(t=null==(e=this.media)?void 0:e.duration)?t:this.audio.duration)?i:this.video.duration}get videoWidth(){return this.video.width}get videoHeight(){return this.video.height}}F=new WeakMap;const Pc=new WeakMap;function Ic(e){let t=Pc.get(e);return t||(t={closed:!1,frames:new Set},Pc.set(e,t)),t}class xc{constructor({art:e,canvas:t,ctx:i,option:r}){var n,s;this.art=e,this.canvas=t,this.option=r,this.events=new ae,this.engine=new Sc({canvas:t,ctx:i,events:this.events,option:r}),this._src=null,this._volume=null!=(n=r.volume)?n:.7,this._muted=!!r.muted,this._playbackRate=1,this.engine.setVolume(this._volume,this._muted),this.setupEventForwarding(),r.source?this.src=r.source:(null==(s=e.option)?void 0:s.url)&&(this.src=e.option.url)}setupEventForwarding(){const{events:e}=this.art.constructor.config;e.forEach(e=>{this.events.addEventListener(e,e=>{this.art.emit(`video:${e.type}`,e)})})}addEventListener(e,t){this.events.addEventListener(e,t)}removeEventListener(e,t){this.events.removeEventListener(e,t)}get src(){return this._src}set src(e){this._src=e,e&&this.engine.load(e)}get currentSrc(){return this._src}get currentTime(){return this.engine.currentTime}set currentTime(e){Promise.resolve(this.engine.seek(Number(e)||0)).catch(()=>{})}get duration(){return this.engine.duration}get buffered(){return this.createTimeRanges(0,this.engine.duration)}get played(){return this.createTimeRanges(0,this.engine.currentTime)}get seekable(){return this.createTimeRanges(0,this.engine.duration)}createTimeRanges(e,t){return function(e,t,i){return!e||Number.isNaN(e)||i<=0?{length:0,start:()=>0,end:()=>0}:{length:1,start:()=>t,end:()=>i}}(this.engine.duration,e,t)}get paused(){return this.engine.paused}get playing(){return!this.engine.paused&&!this.engine.ended}get ended(){return this.engine.ended}get seeking(){return this.engine.seeking}get readyState(){return this.engine.readyState}get networkState(){return this.engine.networkState}get error(){return this.engine.error}get playbackRate(){return this._playbackRate}set playbackRate(e){const t=Number(e);Number.isNaN(t)||t<=0||(this._playbackRate=t,this.engine.setPlaybackRate(t),this.events.emit("ratechange"))}get volume(){return this._volume}set volume(e){var t;this._volume=(t=e,Math.max(0,Math.min(1,Number(t)||0))),this._muted=!1,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}get muted(){return this._muted}set muted(e){this._muted=!!e,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}play(){return this.engine.play()}pause(){this.engine.pause()}load(){this._src&&this.engine.load(this._src)}getM3u8State(){return this.engine.getHlsState()}switchM3u8Quality(e){return this.engine.selectHlsQuality(e)}switchM3u8Audio(e){return this.engine.selectHlsAudio(e)}get videoWidth(){return this.engine.videoWidth}get videoHeight(){return this.engine.videoHeight}get poster(){return this.option.poster||""}set poster(e){this.option.poster=e}get autoplay(){return this.option.autoplay||!1}set autoplay(e){}get loop(){return this.option.loop||!1}set loop(e){}get controls(){return!1}set controls(e){}get playsInline(){return!0}set playsInline(e){}get crossOrigin(){return this.option.crossOrigin||""}set crossOrigin(e){}get preload(){return"auto"}set preload(e){}get defaultMuted(){return!1}set defaultMuted(e){}get defaultPlaybackRate(){return 1}set defaultPlaybackRate(e){}canPlayType(e){return"maybe"}getBoundingClientRect(){return this.canvas.getBoundingClientRect()}requestVideoFrameCallback(e){return function(e,t){const i=Ic(e);if(i.closed)return 0;const r=requestAnimationFrame(n=>{i.frames.delete(r),i.closed||t(n,{presentationTime:e.engine.currentTime,expectedDisplayTime:n+16.6,width:e.engine.videoWidth,height:e.engine.videoHeight,mediaTime:e.engine.currentTime,presentedFrames:0,processingDuration:0,captureTime:n,receiveTime:n,rtpTimestamp:0})});return i.frames.add(r),r}(this,e)}cancelVideoFrameCallback(e){!function(e,t){Ic(e).frames.delete(t),cancelAnimationFrame(t)}(this,e)}setAttribute(e,t){"src"===e?this.src=t:"autoplay"===e?this.autoplay=t:"loop"===e?this.loop=t:"muted"===e?this.muted=!0:Reflect.apply(this.canvas.setAttribute,this.canvas,[e,t])}destroy(){if(function(e){const t=Ic(e);if(t.closed)return!1;t.closed=!0;for(const i of t.frames)cancelAnimationFrame(i);return t.frames.clear(),!0}(this))try{this.engine.destroy()}finally{this.events.destroy()}}}function Cc(e={}){return t=>{const i=t,{createElement:r}=i.constructor.utils,n=r("canvas"),s=new xc({art:i,canvas:n,ctx:n.getContext("2d"),option:e}),a=function(e,t,i,r){let n,s=!1;function a(){var i;s||!(null==(i=e.template)?void 0:i.$player)||e.option.autoSize||Object.assign(t.style,{width:"100%",height:"100%",objectFit:"contain"})}function o(){s||(s=!0,ie([()=>null==n?void 0:n.destroy(),()=>{e.mediabunny===i&&delete e.mediabunny},()=>i.destroy(),()=>{var t;return null==(t=e.off)?void 0:t.call(e,"resize",a)},()=>{var t;return null==(t=e.off)?void 0:t.call(e,"video:loadedmetadata",a)},()=>{var t;return null==(t=e.off)?void 0:t.call(e,"destroy",o)}]))}return{install:function(){e.on("resize",a),e.on("video:loadedmetadata",a),n=se({art:e,shim:i,option:r}),e.on("destroy",o)},destroy:o}}(i,n,s,e);try{i.mediabunny=s,function(e,t){const i=new Map,r=e,n=t;for(const a in e)if("function"===typeof r[a]){const t=r[a];i.set(a,t.bind(e))}const s=new Set([...Object.getOwnPropertyNames(t),...Object.getOwnPropertyNames(Object.getPrototypeOf(t))]);for(const a of s)"constructor"===a||a in e||Object.defineProperty(e,a,{get(){const e=n[a];return"function"===typeof e?e.bind(t):e},set(e){n[a]=e},configurable:!0,enumerable:!0});for(const[a,o]of i)r[a]=(...e)=>o(...e)}(n,s),a.install()}catch(o){try{a.destroy()}catch(l){console.warn("MediaBunny entry setup cleanup:",l)}throw o}return n}}return Object.defineProperty(Cc,"default",{value:Cc,writable:!0,configurable:!0}),Cc});
diff --git a/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.mjs b/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.mjs
index 0d30a4e5f..c30d6d43d 100644
--- a/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.mjs
+++ b/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.mjs
@@ -24403,6 +24403,12 @@ class AudioTask {
     this.timers.clear();
   }
 }
+function requireDecoder(host) {
+  if (host.audio.audioSink || host.video.videoSink)
+    return;
+  host.readyState = 0;
+  throw new Error("Input has no decodable audio or video tracks.");
+}
 function publish(events, current, names) {
   for (const name of names) {
     if (!current())
@@ -25127,6 +25133,7 @@ class Playback {
       await Promise.all([this.host.video.load(media), this.host.audio.load(media)]);
       if (!current())
         return;
+      requireDecoder(this.host);
       await Promise.all([this.host.video.seek(time), this.host.audio.seek(time)]);
       if (current()) {
         this.host.readyState = 4;
@@ -25815,6 +25822,7 @@ class MediaBunnyEngine {
     this.input = input;
     this.media = media;
     const metadata = metadataBarrier(() => {
+      requireDecoder(this);
       this.readyState = 1;
       publish(this.events, current, ["loadedmetadata", "durationchange", "progress"]);
     }, current);
@@ -25824,6 +25832,7 @@ class MediaBunnyEngine {
       await Promise.all([video, audio2]);
       if (!current())
         return;
+      requireDecoder(this);
       this.readyState = 4;
       this.networkState = 1;
       publish(this.events, current, ["loadeddata", "canplay", "canplaythrough", "progress"]);
diff --git a/packages/artplayer-proxy-mediabunny/src/MediaBunnyEngine.ts b/packages/artplayer-proxy-mediabunny/src/MediaBunnyEngine.ts
index a64c0ab4c..7f0236e3d 100644
--- a/packages/artplayer-proxy-mediabunny/src/MediaBunnyEngine.ts
+++ b/packages/artplayer-proxy-mediabunny/src/MediaBunnyEngine.ts
@@ -10,7 +10,7 @@ import { getHlsState } from './hls-state'
 import { createInput } from './input'
 import LoadSession from './load-session'
 import Playback from './playback'
-import { metadataBarrier, publish } from './readiness'
+import { metadataBarrier, publish, requireDecoder } from './readiness'
 import { selectPlaybackTracks } from './tracks'
 import VideoEngine from './VideoEngine.js'
 
@@ -150,6 +150,7 @@ export default class MediaBunnyEngine implements EnginePort {
     this.input = input
     this.media = media
     const metadata = metadataBarrier(() => {
+      requireDecoder(this)
       this.readyState = 1
       publish(this.events, current, ['loadedmetadata', 'durationchange', 'progress'])
     }, current)
@@ -159,6 +160,7 @@ export default class MediaBunnyEngine implements EnginePort {
       await Promise.all([video, audio])
       if (!current())
         return
+      requireDecoder(this)
       this.readyState = 4
       this.networkState = 1
       publish(this.events, current, ['loadeddata', 'canplay', 'canplaythrough', 'progress'])
diff --git a/packages/artplayer-proxy-mediabunny/src/engine-ports.ts b/packages/artplayer-proxy-mediabunny/src/engine-ports.ts
index a3688c823..7b2e7121e 100644
--- a/packages/artplayer-proxy-mediabunny/src/engine-ports.ts
+++ b/packages/artplayer-proxy-mediabunny/src/engine-ports.ts
@@ -1,9 +1,10 @@
-import type { Input } from 'mediabunny'
+import type { AudioBufferSink, CanvasSink, Input } from 'mediabunny'
 import type { ProxyOptions } from './engine-types'
 import type EventTarget from './EventTarget'
 import type { PlaybackMedia } from './media'
 
 export interface AudioPort {
+  readonly audioSink: AudioBufferSink | null
   cancelPending: () => void
   readonly currentTime: number
   duration: number
@@ -19,6 +20,7 @@ export interface AudioPort {
 }
 
 export interface VideoPort {
+  readonly videoSink: CanvasSink | null
   cancelPending: () => void
   width: number
   height: number
diff --git a/packages/artplayer-proxy-mediabunny/src/playback.ts b/packages/artplayer-proxy-mediabunny/src/playback.ts
index d3a19030b..77450f8e9 100644
--- a/packages/artplayer-proxy-mediabunny/src/playback.ts
+++ b/packages/artplayer-proxy-mediabunny/src/playback.ts
@@ -1,6 +1,6 @@
 import type { PlaybackHost } from './engine-ports'
 import type { PlaybackMedia } from './media'
-import { publish } from './readiness'
+import { publish, requireDecoder } from './readiness'
 import { resolveDuration } from './tracks'
 
 interface Completion {
@@ -156,6 +156,7 @@ export default class Playback {
       await Promise.all([this.host.video.load(media), this.host.audio.load(media)])
       if (!current())
         return
+      requireDecoder(this.host)
       await Promise.all([this.host.video.seek(time), this.host.audio.seek(time)])
       if (current()) {
         this.host.readyState = 4
diff --git a/packages/artplayer-proxy-mediabunny/src/readiness.ts b/packages/artplayer-proxy-mediabunny/src/readiness.ts
index c092da643..312a443b7 100644
--- a/packages/artplayer-proxy-mediabunny/src/readiness.ts
+++ b/packages/artplayer-proxy-mediabunny/src/readiness.ts
@@ -1,5 +1,14 @@
+import type { PlaybackHost } from './engine-ports'
 import type EventTarget from './EventTarget'
 
+export function requireDecoder(host: Pick<PlaybackHost, 'audio' | 'video' | 'readyState'>): void {
+  // Sinks reflect the decoder's completed capability check; do not query the SDK twice.
+  if (host.audio.audioSink || host.video.videoSink)
+    return
+  host.readyState = 0
+  throw new Error('Input has no decodable audio or video tracks.')
+}
+
 export function publish(events: EventTarget, current: () => boolean, names: readonly string[]): void {
   for (const name of names) {
     if (!current())
diff --git a/refactor/baselines/mb-capability-source.json b/refactor/baselines/mb-capability-source.json
new file mode 100644
index 000000000..88f34a564
--- /dev/null
+++ b/refactor/baselines/mb-capability-source.json
@@ -0,0 +1,11 @@
+{
+  "task": "PKG-MB-08",
+  "sourceCommit": "5e28dfee950a748f5a92dc0d26508815f23c6aec",
+  "sourceSha256LF": {
+    "packages/artplayer-proxy-mediabunny/src/readiness.ts": "9aa24b5e994006b45bda9eafad602785c3e0e334cef54ff45a4939e386c4aceb",
+    "packages/artplayer-proxy-mediabunny/src/MediaBunnyEngine.ts": "f8c6d96d11878712a40571961d734d4baa4e6bb5317dd32b776ea7a4795ca951",
+    "packages/artplayer-proxy-mediabunny/src/playback.ts": "e2a65782c89627198752ff1fe691d4eea0bef215d883a59f0bdcd3e904a4fb47",
+    "packages/artplayer-proxy-mediabunny/src/engine-ports.ts": "c56fad4a8f9578aa37686972d96d925012df8160c62337a53200b23a4fc3b164",
+    "packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.js": "b7f4ff882a59cdff2b351d0ffcf4948dc9c06317c11dfaf6257f4865bf8c4134"
+  }
+}
diff --git a/refactor/baselines/mb-capability-validation.json b/refactor/baselines/mb-capability-validation.json
new file mode 100644
index 000000000..9bcfaae2f
--- /dev/null
+++ b/refactor/baselines/mb-capability-validation.json
@@ -0,0 +1,2220 @@
+{
+  "task": "PKG-MB-08",
+  "status": "done",
+  "parentCommit": "5e28dfee950a748f5a92dc0d26508815f23c6aec",
+  "sourceSha256LF": {
+    "packages/artplayer-proxy-mediabunny/src/audio-clock.ts": "6f11da4cfa46023bdab4f1bc3930f631f278ac562662fb0a7f908c110ea5d1a8",
+    "packages/artplayer-proxy-mediabunny/src/audio-context.ts": "7807a2b5343d6af5af67d23c1429a9715567c3f888fc4b5e9c9327bbb2f30332",
+    "packages/artplayer-proxy-mediabunny/src/audio-nodes.ts": "223e8241c7b2d8400ea25ac127ecc15dd16a687e984377b18b6891afa2fdef75",
+    "packages/artplayer-proxy-mediabunny/src/audio-pump.ts": "b85f086f4cae13d04d2e334e4e9fa18a6768f3e4187f6124761e3c439060cf06",
+    "packages/artplayer-proxy-mediabunny/src/audio-task.ts": "65d831e8455a5df3897315ee5b9ee8849a26347fee411e038860df388c1fa77b",
+    "packages/artplayer-proxy-mediabunny/src/AudioEngine.ts": "4d58cc30148bb4d9e384ea4716a805b00dd9633e03130ba6aeac8d431dd72c43",
+    "packages/artplayer-proxy-mediabunny/src/canvas-bridge.ts": "91db7cd1b637299656b374f454d7480f1712be224ae9839e9c9f5e3c69e62f06",
+    "packages/artplayer-proxy-mediabunny/src/cleanup.ts": "854c012384acad4d77e96928217ee16ac6b0425289a3747b331381b13b03f976",
+    "packages/artplayer-proxy-mediabunny/src/engine-ports.ts": "0ef7483fdeee02e85e310b98cdd01144f1cbb1aaa07f73ba9c01e5be433bd8dc",
+    "packages/artplayer-proxy-mediabunny/src/engine-types.ts": "6714070f954f7345f33cd93655facc6aa94fd34fa1be0375361962d54fa6e180",
+    "packages/artplayer-proxy-mediabunny/src/entry-lifecycle.ts": "e760916318e7cc50b7a853be535dddf4911ec59f207f4706314e9d9e77c74b5d",
+    "packages/artplayer-proxy-mediabunny/src/EventTarget.ts": "4cea57e59b0a1118744a55b0a87c1df28cb0d69c26c50f9275039fe7540c9720",
+    "packages/artplayer-proxy-mediabunny/src/hls-selection.ts": "b17af12f8fe9f7054898c0cd9a12edce1fd5b58c8ad70e00bcedf098ead4b3dd",
+    "packages/artplayer-proxy-mediabunny/src/hls-state.ts": "ff9ffd742f9763349df1f50eac6b6bd488a80d05aaab8ca198f387f0d17d5e25",
+    "packages/artplayer-proxy-mediabunny/src/index.ts": "0c8f1318cf95152a4e1bcb57e60c97e2f3cb02fe6d9d4ff7dc5666159f87fbc2",
+    "packages/artplayer-proxy-mediabunny/src/input.ts": "d25b1c4ee4aee358c86fd8c554b8b36bfc23fdbd3c27fa21d2cd7e812c98bf9c",
+    "packages/artplayer-proxy-mediabunny/src/load-session.ts": "560fbd5935fc787bde5f413fcaa41b8829506179c5328ce3cb51e734bbba8cec",
+    "packages/artplayer-proxy-mediabunny/src/m3u8-menu.ts": "ded1f2efb5caee66a9af5b2db0207c20b4d6caaf05a2bc97df50c40bf6b389d4",
+    "packages/artplayer-proxy-mediabunny/src/m3u8-model.ts": "239c9da0a2cba97ef8f681ba312acc8f7ef460c3486a803340cfaf355482ddc0",
+    "packages/artplayer-proxy-mediabunny/src/m3u8-types.ts": "cb8ef504eb038dc48cb9ac59811962ecbe1469d8435ecf56f4fd0cd12dd0c18c",
+    "packages/artplayer-proxy-mediabunny/src/m3u8.ts": "b3df6a36730f4c30d61e3dc6e28b5d43201f9d264e86dc3d9f855fadf2c58e82",
+    "packages/artplayer-proxy-mediabunny/src/media.ts": "e745cd8e750e05d0fcfa4bc588f7eb5a5576f3be20f5e67b65b704f57d539ae9",
+    "packages/artplayer-proxy-mediabunny/src/MediaBunnyEngine.ts": "d56f1315969dc799de8500af6bfb779aa2a866b1ed605d637e578ebce13a97e3",
+    "packages/artplayer-proxy-mediabunny/src/playback.ts": "78c776f2ce115a2207bfa7346cd5b96ded7faeaa117657d8126f9d7876618bb5",
+    "packages/artplayer-proxy-mediabunny/src/preflight.ts": "d296234312f23b97a1e0a054f1d7dbbc988d5240c5fd5089c36df1677c7b7348",
+    "packages/artplayer-proxy-mediabunny/src/readiness.ts": "bb2279070ce8dfafd93e806e00d2acd273b9c64263c5e519bbf83f8ac7549ada",
+    "packages/artplayer-proxy-mediabunny/src/shim-frames.ts": "f6959cc74c718b5adb4d2e38989f1da94a690e96b7861b2a54b0d233e8470cc0",
+    "packages/artplayer-proxy-mediabunny/src/shim-values.ts": "a93ee17e87cc7db24f4b02d866af8af206d3007d01def446906fb769c20de17d",
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+      "log": "refactor/.cache/mb08-cap-frozen-final.log"
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+      "native-decoded-video-race": 10,
+      "native-mp4-playback-observed": 2,
+      "verified-unsupported-capability-control": 1
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+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
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+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
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+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "resume-pause",
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+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "resume-source",
+        "outcome": "native-audio-ownership-observed",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "resume-destroy",
+        "outcome": "native-audio-ownership-observed",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "av-clock",
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+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "no-track",
+        "outcome": "native-audio-ownership-observed",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "playback",
+        "outcome": "native-audio-ownership-observed",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "buffer-pause",
+        "outcome": "native-audio-ownership-observed",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "buffer-rate",
+        "outcome": "native-audio-ownership-observed",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "resume-pause",
+        "outcome": "native-audio-ownership-observed",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "resume-source",
+        "outcome": "native-audio-ownership-observed",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "resume-destroy",
+        "outcome": "native-audio-ownership-observed",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "av-clock",
+        "outcome": "native-audio-ownership-observed",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "no-track",
+        "outcome": "native-audio-ownership-observed",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "playback",
+        "outcome": "unsupported-capability-control",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "buffer-pause",
+        "outcome": "unsupported-capability-control",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "buffer-rate",
+        "outcome": "unsupported-capability-control",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "resume-pause",
+        "outcome": "unsupported-capability-control",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "resume-source",
+        "outcome": "unsupported-capability-control",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "resume-destroy",
+        "outcome": "unsupported-capability-control",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "av-clock",
+        "outcome": "unsupported-capability-control",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "no-track",
+        "outcome": "unsupported-capability-control",
+        "scope": "Native AudioContext, BufferSourceNodes and SDK decode. Delayed resume/buffer delivery is controlled. AV samples compare decoded canvas timestamps to the audio clock over short 1x/2x playback; acoustic output, long-run drift and physical devices remain MB-09."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "video-unsupported",
+        "outcome": "controlled-unsupported-track-rejected-before-readiness",
+        "capabilities": {
+          "AudioContext": "function",
+          "webkitAudioContext": "undefined",
+          "AudioDecoder": "function",
+          "VideoDecoder": "function"
+        },
+        "result": {
+          "readyState": 0,
+          "networkState": 3,
+          "error": {
+            "code": 4,
+            "message": "Input has no decodable audio or video tracks."
+          },
+          "events": [
+            "error"
+          ],
+          "queries": {
+            "video": 1,
+            "audio": 0
+          }
+        },
+        "scope": "Actual SDK parsing, Canvas, Web Audio and two cores. canDecode=false is deliberately controlled for selected tracks; partial cases play the remaining native decoder. Windows WebKit missing APIs is a separate control, not playback."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "audio-unsupported",
+        "outcome": "controlled-unsupported-track-rejected-before-readiness",
+        "capabilities": {
+          "AudioContext": "function",
+          "webkitAudioContext": "undefined",
+          "AudioDecoder": "function",
+          "VideoDecoder": "function"
+        },
+        "result": {
+          "readyState": 0,
+          "networkState": 3,
+          "error": {
+            "code": 4,
+            "message": "Input has no decodable audio or video tracks."
+          },
+          "events": [
+            "error"
+          ],
+          "queries": {
+            "video": 0,
+            "audio": 1
+          }
+        },
+        "scope": "Actual SDK parsing, Canvas, Web Audio and two cores. canDecode=false is deliberately controlled for selected tracks; partial cases play the remaining native decoder. Windows WebKit missing APIs is a separate control, not playback."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "mixed-video-unsupported",
+        "outcome": "native-partial-decoder-playback-with-controlled-unsupported-track",
+        "capabilities": {
+          "AudioContext": "function",
+          "webkitAudioContext": "undefined",
+          "AudioDecoder": "function",
+          "VideoDecoder": "function"
+        },
+        "result": {
+          "video": false,
+          "audio": true,
+          "nodes": 46,
+          "width": 0,
+          "events": [
+            "loadedmetadata",
+            "loadeddata",
+            "canplay",
+            "canplaythrough"
+          ],
+          "error": null,
+          "queries": {
+            "video": 1,
+            "audio": 0
+          }
+        },
+        "scope": "Actual SDK parsing, Canvas, Web Audio and two cores. canDecode=false is deliberately controlled for selected tracks; partial cases play the remaining native decoder. Windows WebKit missing APIs is a separate control, not playback."
+      },
+      {
+        "project": "chromium",
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+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "video-unsupported",
+        "outcome": "unsupported-capability-control",
+        "capabilities": {
+          "AudioContext": "undefined",
+          "webkitAudioContext": "undefined",
+          "AudioDecoder": "undefined",
+          "VideoDecoder": "undefined"
+        },
+        "scope": "Actual SDK parsing, Canvas, Web Audio and two cores. canDecode=false is deliberately controlled for selected tracks; partial cases play the remaining native decoder. Windows WebKit missing APIs is a separate control, not playback."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "audio-unsupported",
+        "outcome": "unsupported-capability-control",
+        "capabilities": {
+          "AudioContext": "undefined",
+          "webkitAudioContext": "undefined",
+          "AudioDecoder": "undefined",
+          "VideoDecoder": "undefined"
+        },
+        "scope": "Actual SDK parsing, Canvas, Web Audio and two cores. canDecode=false is deliberately controlled for selected tracks; partial cases play the remaining native decoder. Windows WebKit missing APIs is a separate control, not playback."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "mixed-video-unsupported",
+        "outcome": "unsupported-capability-control",
+        "capabilities": {
+          "AudioContext": "undefined",
+          "webkitAudioContext": "undefined",
+          "AudioDecoder": "undefined",
+          "VideoDecoder": "undefined"
+        },
+        "scope": "Actual SDK parsing, Canvas, Web Audio and two cores. canDecode=false is deliberately controlled for selected tracks; partial cases play the remaining native decoder. Windows WebKit missing APIs is a separate control, not playback."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "mixed-audio-unsupported",
+        "outcome": "unsupported-capability-control",
+        "capabilities": {
+          "AudioContext": "undefined",
+          "webkitAudioContext": "undefined",
+          "AudioDecoder": "undefined",
+          "VideoDecoder": "undefined"
+        },
+        "scope": "Actual SDK parsing, Canvas, Web Audio and two cores. canDecode=false is deliberately controlled for selected tracks; partial cases play the remaining native decoder. Windows WebKit missing APIs is a separate control, not playback."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "replacement",
+        "outcome": "unsupported-capability-control",
+        "capabilities": {
+          "AudioContext": "undefined",
+          "webkitAudioContext": "undefined",
+          "AudioDecoder": "undefined",
+          "VideoDecoder": "undefined"
+        },
+        "scope": "Actual SDK parsing, Canvas, Web Audio and two cores. canDecode=false is deliberately controlled for selected tracks; partial cases play the remaining native decoder. Windows WebKit missing APIs is a separate control, not playback."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "native-cleanup",
+        "outcome": "native-canvas-entry",
+        "scope": "Actual browser Canvas descriptors and published/candidate core lifecycle. Empty source deliberately excludes decoding; existing media suites cover playback separately."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "replacement",
+        "outcome": "native-canvas-entry",
+        "scope": "Actual browser Canvas descriptors and published/candidate core lifecycle. Empty source deliberately excludes decoding; existing media suites cover playback separately."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "native-cleanup",
+        "outcome": "native-canvas-entry",
+        "scope": "Actual browser Canvas descriptors and published/candidate core lifecycle. Empty source deliberately excludes decoding; existing media suites cover playback separately."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "replacement",
+        "outcome": "native-canvas-entry",
+        "scope": "Actual browser Canvas descriptors and published/candidate core lifecycle. Empty source deliberately excludes decoding; existing media suites cover playback separately."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "native-cleanup",
+        "outcome": "native-canvas-entry",
+        "scope": "Actual browser Canvas descriptors and published/candidate core lifecycle. Empty source deliberately excludes decoding; existing media suites cover playback separately."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "replacement",
+        "outcome": "native-canvas-entry",
+        "scope": "Actual browser Canvas descriptors and published/candidate core lifecycle. Empty source deliberately excludes decoding; existing media suites cover playback separately."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "native-cleanup",
+        "outcome": "native-canvas-entry",
+        "scope": "Actual browser Canvas descriptors and published/candidate core lifecycle. Empty source deliberately excludes decoding; existing media suites cover playback separately."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "replacement",
+        "outcome": "native-canvas-entry",
+        "scope": "Actual browser Canvas descriptors and published/candidate core lifecycle. Empty source deliberately excludes decoding; existing media suites cover playback separately."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "native-cleanup",
+        "outcome": "native-canvas-entry",
+        "scope": "Actual browser Canvas descriptors and published/candidate core lifecycle. Empty source deliberately excludes decoding; existing media suites cover playback separately."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "replacement",
+        "outcome": "native-canvas-entry",
+        "scope": "Actual browser Canvas descriptors and published/candidate core lifecycle. Empty source deliberately excludes decoding; existing media suites cover playback separately."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "native-cleanup",
+        "outcome": "native-canvas-entry",
+        "scope": "Actual browser Canvas descriptors and published/candidate core lifecycle. Empty source deliberately excludes decoding; existing media suites cover playback separately."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "replacement",
+        "outcome": "native-canvas-entry",
+        "scope": "Actual browser Canvas descriptors and published/candidate core lifecycle. Empty source deliberately excludes decoding; existing media suites cover playback separately."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "menus",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "topology",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "stale-source",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "stale-destroy",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "latest",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "menus",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "topology",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "stale-source",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "stale-destroy",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "latest",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "menus",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "topology",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "stale-source",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "stale-destroy",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "latest",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "menus",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "topology",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "stale-source",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "stale-destroy",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "latest",
+        "outcome": "native-hls-ui-and-selection-observed",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "menus",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "topology",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "stale-source",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "stale-destroy",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "published",
+        "scenario": "latest",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "menus",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "topology",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "stale-source",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "stale-destroy",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "core": "candidate",
+        "scenario": "latest",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual old/candidate core, SDK HLS parsing and native decoding; rendered control/settings clicks, topology and controlled state/query delays. Not installed-package or long-run/device acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "webm",
+        "outcome": "native-input-playback-and-seek",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "blob",
+        "outcome": "native-input-playback-and-seek",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "stream",
+        "outcome": "native-input-playback-and-seek",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "audio",
+        "outcome": "native-input-playback-and-seek",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "hls",
+        "outcome": "native-input-playback-and-seek",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "trackless",
+        "outcome": "trackless-rejected-before-decoder-setup",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "webm",
+        "outcome": "native-input-playback-and-seek",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "blob",
+        "outcome": "native-input-playback-and-seek",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "stream",
+        "outcome": "native-input-playback-and-seek",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "audio",
+        "outcome": "native-input-playback-and-seek",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "hls",
+        "outcome": "native-input-playback-and-seek",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "trackless",
+        "outcome": "trackless-rejected-before-decoder-setup",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "webm",
+        "outcome": "unsupported-capability-control",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "blob",
+        "outcome": "unsupported-capability-control",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "stream",
+        "outcome": "unsupported-capability-control",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "audio",
+        "outcome": "unsupported-capability-control",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "hls",
+        "outcome": "unsupported-capability-control",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "input": "trackless",
+        "outcome": "trackless-rejected-before-decoder-setup",
+        "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless rejection is checked separately before decoder setup; this is not full release acceptance."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "outcome": "native-pending-stream-cancellation",
+        "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "outcome": "native-pending-stream-cancellation",
+        "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "outcome": "native-pending-stream-cancellation",
+        "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "outcome": "native-pending-stream-cancellation",
+        "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "outcome": "native-pending-stream-cancellation",
+        "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "outcome": "native-pending-stream-cancellation",
+        "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "outcome": "native-pending-stream-cancellation",
+        "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "outcome": "native-pending-stream-cancellation",
+        "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "outcome": "native-pending-stream-cancellation",
+        "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "callback",
+        "outcome": "native-synthetic-raf",
+        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "destroy",
+        "outcome": "native-synthetic-raf",
+        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "independent",
+        "outcome": "native-synthetic-raf",
+        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "callback",
+        "outcome": "native-synthetic-raf",
+        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "destroy",
+        "outcome": "native-synthetic-raf",
+        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "independent",
+        "outcome": "native-synthetic-raf",
+        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "callback",
+        "outcome": "native-synthetic-raf",
+        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "destroy",
+        "outcome": "native-synthetic-raf",
+        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "independent",
+        "outcome": "native-synthetic-raf",
+        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "pause-frame",
+        "outcome": "native-decoded-video-race",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "seek-source",
+        "outcome": "native-decoded-video-race",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "seek-newer",
+        "outcome": "native-decoded-video-race",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "timeupdate-pause",
+        "outcome": "native-decoded-video-race",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "seek-pool",
+        "outcome": "native-decoded-video-race",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "pause-frame",
+        "outcome": "native-decoded-video-race",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "seek-source",
+        "outcome": "native-decoded-video-race",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "seek-newer",
+        "outcome": "native-decoded-video-race",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "timeupdate-pause",
+        "outcome": "native-decoded-video-race",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "seek-pool",
+        "outcome": "native-decoded-video-race",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "pause-frame",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "seek-source",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "seek-newer",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "timeupdate-pause",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "scenario": "seek-pool",
+        "outcome": "unsupported-capability-control",
+        "scope": "Actual SDK MP4 decoding and browser clock/RAF; frame delivery or two raw VideoSample deliveries before CanvasSink conversion control interleaving. Source/seek ownership, pause and timeupdate reentry verified; not long-run AV sync or a mock codec."
+      },
+      {
+        "project": "chromium",
+        "browser": "153.0.8010.12",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "outcome": "native-mp4-playback-observed",
+        "scope": "Identified published or candidate proxy with actual core5.4.0; native MP4 pixels/clock or explicitly unsupported Windows WebKit APIs. No HLS or long-run AV-sync acceptance."
+      },
+      {
+        "project": "firefox",
+        "browser": "155.0",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "outcome": "native-mp4-playback-observed",
+        "scope": "Identified published or candidate proxy with actual core5.4.0; native MP4 pixels/clock or explicitly unsupported Windows WebKit APIs. No HLS or long-run AV-sync acceptance."
+      },
+      {
+        "project": "webkit",
+        "browser": "26.6",
+        "platform": "win32",
+        "sha256": "23ce59f86e7159eedd4c371219c5ed58db83341e1f3fa3c67dcb8f1259e243cb",
+        "implementation": "candidate-artifact",
+        "outcome": "verified-unsupported-capability-control",
+        "scope": "Identified published or candidate proxy with actual core5.4.0; native MP4 pixels/clock or explicitly unsupported Windows WebKit APIs. No HLS or long-run AV-sync acceptance."
+      }
+    ],
+    "report": "refactor/.cache/mb08-cap-results/report.json",
+    "reportSha256": "f79736d2a0434e3703c224ce2ba9712374bedef6a21bb8d30e233eca93e3a607",
+    "results": "refactor/.cache/mb08-cap-results/results",
+    "previousMain": {
+      "total": 30,
+      "passed": 18,
+      "failed": 12,
+      "report": "refactor/.cache/mb08-cap-frozen-results/report.json",
+      "reportSha256": "d510df16775476dfaad00550cf7788aacb304bf7b9bde1e77024502d9de51da8",
+      "results": "refactor/.cache/mb08-cap-frozen-results/results"
+    }
+  },
+  "installedTypes": {
+    "cases": 17,
+    "candidateCases": 7,
+    "invalidUsesPerCandidate": 15,
+    "historicalNodeNextFailures": 2,
+    "report": "refactor/.cache/mb-package-types-QjPctx/report.json",
+    "reportSha256": "ffe3b7e8f207630e75e4e46ee2ca7eb474c41867d1e32e1dd1eb8e3941c8e269",
+    "packages": [
+      {
+        "name": "artplayer",
+        "sha256": "2139af017670a4f30f667bf5fdc1aa680f3e03b9c8d3cb767fc92d6345aedff5"
+      },
+      {
+        "name": "artplayer-proxy-mediabunny",
+        "sha256": "a6ccaa5e673bfab027952d139d941bede20ae19c0aa898c0cf059f5348fbb6b9"
+      }
+    ]
+  },
+  "checks": [
+    {
+      "command": "yarn ci:check",
+      "result": "pass",
+      "tests": {
+        "unit": 1263,
+        "engineering": 14,
+        "baseline": 141,
+        "mainTotal": 1418,
+        "repeatedContractExecutions": 44
+      },
+      "strictProductionTypeScriptFiles": 324,
+      "log": "refactor/.cache/mb08-cap-ci.log"
+    }
+  ],
+  "requirements": [
+    {
+      "requirement": "Migrate owned implementation to strict TS",
+      "evidence": "All 34 production modules are checked implementation; no remaining JS or adjacent declaration bridge."
+    },
+    {
+      "requirement": "Clear decoder/Stream/DOM types",
+      "evidence": "SDK sink types stay internal; public Option byte streams/Canvas unchanged. Actual VideoShim implements opt-in media view without leaking modern SDK declarations."
+    },
+    {
+      "requirement": "Preserve optional factory and art.mediabunny usage",
+      "evidence": "Final isolated install repeats 17 compiler/runtime cases, whole-factory assignments against actual frozen declarations and exact Canvas result. Alias remains optional with owned teardown; prior entry tests rerun in artifact suites."
+    },
+    {
+      "requirement": "Do not falsely report all unsupported tracks ready",
+      "evidence": "16 controlled Node cases, 12 controlled browser rejection cases, eight remaining-native-decoder playback cases; active SDK messages and late-query cancellation preserved."
+    }
+  ],
+  "iterations": [
+    "Original capability reproduction retained Input only in old implementation; replacement regression fixture now prepares an explicitly supported decoder while keeping the real Input alive, then runs the actual unsupported replacement.",
+    "Two original coordinator fixtures simulated successful decoder loads but omitted their working sink; added that fixture state while preserving all original ordering assertions."
+  ],
+  "limitations": [
+    "canDecode=false is a controlled response, not a claim that the real browser rejects the fixture codec.",
+    "Thirty-nine Windows WebKit missing-API controls are not playback or physical Safari support evidence.",
+    "Public canPlayType remains maybe and TimeRanges/RAF remain synthetic.",
+    "Long-run synchronization, physical devices, native Document PiP and combinations remain MB-09.",
+    "Complete distribution/demo/source and license notice acceptance remain MB-10."
+  ]
+}
diff --git a/refactor/changes/2026-09-12-PKG-MB-08-capability.md b/refactor/changes/2026-09-12-PKG-MB-08-capability.md
new file mode 100644
index 000000000..321e64a43
--- /dev/null
+++ b/refactor/changes/2026-09-12-PKG-MB-08-capability.md
@@ -0,0 +1,58 @@
+# PKG-MB-08：完成类型迁移与解码能力边界
+
+入口与公开类型已在5e28dfee检查点落地，本轮完成剩余能力/就绪问题。
+实际接续源码及main冻结于[能力基线](../baselines/mb-capability-source.json)。
+完整CI与最终证据核对通过，任务标记done并立即专用本地提交。
+
+## 问题与修复
+
+实际SDK解析出的video-only/audio-only输入，在codec=null或canDecode=false时，旧引擎把
+两端都降级为空轨道，却仍发布loadedmetadata/data/canplay/through并进入readyState 4。
+HLS替换轨道也有相同问题。仅有音频时使用音频解码，或仅有视频时使用AudioContext作为时钟，
+本来是有效场景；不能一律要求音频和视频两条轨道都支持。
+
+readiness.ts新增内部requireDecoder，根据两个引擎完成现有能力检查后实际建立的sink判断。
+不重复调用SDK canDecode，不改变decoder.load的Promise<void>返回，也不添加Canvas公开字段。
+metadata barrier在发布metadata前检查；load在发布data/canplay前检查；轨道替换在decoder
+加载后、seek及成功事件前检查。全部不可用时readyState归零，通过既有code 4错误通道报告
+`Input has no decodable audio or video tracks.`。原SDK查询拒绝保留原消息。
+
+至少一条轨道可用时，原有部分播放、事件顺序和AudioContext时钟保留。暂停不取消仍有效的加载；
+过期能力查询不能对新source或已destroy实例发就绪/错误。后续有效source可正常恢复。
+HLS失败触发现有error清理，移除失效菜单；旧canPlayType恒maybe及synthetic ranges/RAF不变。
+内部AudioPort/VideoPort补上准确SDK sink类型，公共声明仍不引入这些SDK依赖。
+
+## 验证
+
+新增16项Node回归：两个单轨输入的false/null能力、轨道替换、正常音频、晚查询false/reject、
+暂停期间查询、活动SDK错误、有效source恢复。使用真实SDK输入/track与受控能力响应；正常替换
+夹具先模拟已工作的decoder并保留真实Input，再使用实际引擎执行失败替换。
+同断言旧main8通过/8失败；候选全部通过。原协调器两个正常夹具补齐其声明模拟的有效sink，
+事件/顺序断言保持原样，没有为错误实现放宽预期。候选包专项257、main/legacy各233通过；
+每个产物命令包含229候选断言与4冻结正常控制。
+
+新增30浏览器用例涵盖发布版/候选核心与三个引擎。Chromium/Firefox中12项受控不可解码
+检查通过，8项混合媒体保留另一实际原生解码器并播放；Windows WebKit的10项API缺失为能力对照。
+canDecode=false是受控输入，不把它描述为浏览器自身拒绝该真实fixture的编码。
+旧main相同30项18通过/12失败；失败均为单轨假就绪和HLS替换假成功，正常部分播放仍通过。
+每轮report及整个results目录均保留。
+
+最终整组浏览器、隔离安装、完整CI及哈希记录见[最终证据](../baselines/mb-capability-validation.json)。
+入口检查点的17组安装类型/导出矩阵在最终候选上重跑；两个冻结声明整工厂双向赋值、精确Canvas
+结果和旧Option保持，新的可选shim/Player/HLS/RAF类型仍由实际VideoShim实现约束。
+
+## 维护与验收边界
+
+原有8个JS模块已在前序步骤细分并全部迁为34个生产TS模块，无相邻声明桥替代实现检查。
+包内ARCHITECTURE.md记录模块、资源归属、能力/类型边界，README给出可选类型用法；
+test:unit/test:mediabunny接入本轮用例，三种构建及docs复制由标准build生成。本轮没有新依赖。
+
+MB-08交付严格TS实现、兼容媒体声明与明确的不可解码错误处理。MB-CAP-01仍保留物理Safari/
+支持范围核验，MB-09负责长播放/音画同步/设备/组合，MB-10负责示例、完整分发与MPL/source notice。
+这些门槛不因本轮正常检查通过而视为完成。后续发现具体失败应修复并加入回归，不能只增加豁免。
+回退本轮commit可还原能力处理；入口/声明检查点单独回退5e28dfee，不改冻结历史输入。
+
+最终9个MediaBunny浏览器文件150项通过，其中39项为Windows WebKit能力缺失对照；
+完整CI1418项（1263单元+14工程+141基线）与44重复契约通过，324生产TS。
+最终源码/声明/测试/产物/安装文件及报告哈希一致，三格式dist与docs复制一致。
+MB-TYPE-01和MB-READY-01按其声明/就绪验收条件关闭；MB-CAP-01、MB-LIFE-01与MB-LICENSE-01仍open。
diff --git a/refactor/mb-validation.md b/refactor/mb-validation.md
index 259b025c5..22a7a7b14 100644
--- a/refactor/mb-validation.md
+++ b/refactor/mb-validation.md
@@ -91,3 +91,13 @@ index实际迁移，入口/Canvas桥/生命周期/清理拆为四模块，全包
 见[变更](changes/2026-09-12-PKG-MB-08-entry-checkpoint.md)和[证据](baselines/mb-entry-checkpoint.json)。
 完整CI1402项及44重复契约通过，324生产TS。受控canDecode=false已复现旧/候选
 video-only输入及替换无sink仍readyState=4；任务保持doing，下一步修复该能力边界。
+
+## PKG-MB-08 完成：能力与公开声明验收
+
+入口检查点后补齐解码能力就绪门槛：全部无sink时通过原code 4通道拒绝，至少一条可用则
+保留正常部分播放。16新增Node断言旧main8通过/8失败；候选专项257、main/legacy各233通过。
+新增30浏览器中12受控拒绝、8原生部分播放及10能力对照；旧main相同30项18通过/12失败。
+最终150浏览器、17组实际安装类型/导出、完整CI1418与44重复契约通过，324生产TS。
+[变更](changes/2026-09-12-PKG-MB-08-capability.md)和[证据](baselines/mb-capability-validation.json)
+核对全部源码/产物/报告/安装文件哈希。MB-TYPE-01/MB-READY-01关闭；任务done并立即专用提交。
+39个WebKit能力对照不是播放或物理Safari支持，长播放/设备/组合及分发许可仍由09/10接续。
diff --git a/refactor/plan.md b/refactor/plan.md
index ab9ca191d..22c845d2a 100644
--- a/refactor/plan.md
+++ b/refactor/plan.md
@@ -4,7 +4,7 @@
 
 基线：`40fcda6a37d0049d42e49c1e64e70d4fd9ba5f7f`。总任务 222 项，范围 22 个包及工作区/示例。
 
-状态：todo 110 / doing 8 / blocked 0 / done 104 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
+状态：todo 110 / doing 7 / blocked 0 / done 105 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
 
 前置依赖是启动条件；验收是完成条件。任务可以继续拆分，但不能复用或悄悄删除旧 ID。
 
@@ -336,7 +336,7 @@
 | PKG-MB-05 | artplayer-proxy-mediabunny<br>整理视频解码、seek 和帧释放 | PKG-MB-04 | VideoEngine 调度、队列、晚帧处理和资源释放 | 暂停/seek/切源无旧帧覆盖，默认丢帧策略不变 | H | done |
 | PKG-MB-06 | artplayer-proxy-mediabunny<br>整理音频解码、时钟与同步 | PKG-MB-04 | AudioEngine 时钟、缓冲和 AudioContext 归属 | AV sync、倍速、无音轨、静音/音量和暂停恢复通过 | H | done |
 | PKG-MB-07 | artplayer-proxy-mediabunny<br>整理 HLS 配对轨道与 selector | PKG-MB-05, PKG-MB-06, CORE-14 | m3u8 配对、质量/音频选择及拓扑清理 | 实际选择高亮、切到无轨道来源清理、无重复 readiness | H | done |
-| PKG-MB-08 | artplayer-proxy-mediabunny<br>完成 TS 与媒体能力声明 | PKG-MB-07, ENG-04, ENG-06 | 8 个自有 JS 模块迁移与 Result/shim 类型 | 解码器/Stream/DOM 类型清楚，旧 Option 和 art.mediabunny 使用保持 | H | doing |
+| PKG-MB-08 | artplayer-proxy-mediabunny<br>完成 TS 与媒体能力声明 | PKG-MB-07, ENG-04, ENG-06 | 8 个自有 JS 模块迁移与 Result/shim 类型 | 解码器/Stream/DOM 类型清楚，旧 Option 和 art.mediabunny 使用保持 | H | done |
 | PKG-MB-09 | artplayer-proxy-mediabunny<br>完成新旧核心和真实媒体组合 | PKG-MB-08, CORE-22 | 跨浏览器能力、长播放、DPiP、HLS 音轨/质量报告 | 资源释放、事件顺序、AV sync 与支持范围满足基线 | H | todo |
 | PKG-MB-10 | artplayer-proxy-mediabunny<br>完成分发和文档 | PKG-MB-09, ENG-07 | mediabunny.js、README、依赖版本、三产物和许可 | tarball 可消费、无意外依赖升级、旧调用与回退可用 | H | todo |
 
@@ -527,5 +527,5 @@
 - PKG-MB-05: [记录](baselines/mb-video-source.json) [记录](changes/2026-09-12-PKG-MB-05-video.md) [记录](baselines/mb-video-validation.json)
 - PKG-MB-06: [记录](baselines/mb-audio-source.json) [记录](changes/2026-09-12-PKG-MB-06-audio.md) [记录](baselines/mb-audio-validation.json)
 - PKG-MB-07: [记录](baselines/mb-hls-source.json) [记录](changes/2026-09-12-PKG-MB-07-hls.md) [记录](baselines/mb-hls-validation.json)
-- PKG-MB-08: [记录](baselines/mb-entry-source.json) [记录](changes/2026-09-12-PKG-MB-08-entry-checkpoint.md) [记录](baselines/mb-entry-checkpoint.json)
+- PKG-MB-08: [记录](baselines/mb-entry-source.json) [记录](changes/2026-09-12-PKG-MB-08-entry-checkpoint.md) [记录](baselines/mb-entry-checkpoint.json) [记录](baselines/mb-capability-source.json) [记录](changes/2026-09-12-PKG-MB-08-capability.md) [记录](baselines/mb-capability-validation.json)
 - PKG-FACTORY-01: [记录](baselines/factory-assignment-gaps.json) [记录](baselines/factory-compatibility-proposals.json) [记录](factory-compatibility-decision.md) [记录](changes/2026-09-12-PKG-FACTORY-01-decision.md)
diff --git a/refactor/progress.md b/refactor/progress.md
index 4d682511b..9bd1166c7 100644
--- a/refactor/progress.md
+++ b/refactor/progress.md
@@ -1,5 +1,17 @@
 # 进度与证据
 
+## PKG-MB-08完成：严格TS、兼容声明与解码能力边界
+
+全包34生产TS已迁移，默认可选工厂/精确Canvas兼容；显式媒体类型不泄漏SDK现代声明。
+本轮修复全部轨道不可解码时仍发布就绪和替换成功的问题；保留一条可用轨道的部分播放，
+不重复canDecode查询，SDK原错误和过期查询取消保持。16新断言旧main8通过/8失败，
+候选专项257及main/legacy各233通过。新增30浏览器含12受控拒绝、8实际部分解码播放、
+10能力对照；旧main相同30项18通过/12失败。最终150浏览器全部通过，39能力对照不计播放。
+最终实际安装17类型/导出矩阵、完整CI1418及44重复契约通过，324生产TS，全部哈希核对。
+见[变更](changes/2026-09-12-PKG-MB-08-capability.md)与[证据](baselines/mb-capability-validation.json)。
+222项：105 done、7 doing、110 todo；立即专用本地提交。MB-TYPE-01/MB-READY-01关闭。
+下一项MB-09处理长播放、AV sync、原生DPiP与新旧核心组合；能力/设备、完整分发与许可门槛仍open。
+
 ## PKG-MB-08检查点：入口TS与兼容媒体声明（doing）
 
 全包34个自有生产模块已转TS，入口/Canvas桥/生命周期/清理分离。默认工厂仍可选Option、
diff --git a/refactor/risk-table.md b/refactor/risk-table.md
index 09a7ff4a4..6b4725b1d 100644
--- a/refactor/risk-table.md
+++ b/refactor/risk-table.md
@@ -170,6 +170,6 @@
 | FACTORY-TYPE-01 | open / 已复现 | Canvas and Ambilight default self property narrows assignability of historical factory replacements | PKG-FACTORY-01 |
 | MB-LICENSE-01 | open / 已复现 | Historical MediaBunny proxy bundles embed SDK code without MPL notice markers or separate license/source provenance | PKG-MB-10 |
 | MB-LIFE-01 | open / 已复现 | MediaBunny load, track replacement, timeout, RAF and audio callbacks lack one shared terminal owner | PKG-MB-02, PKG-MB-03, PKG-MB-04, PKG-MB-05, PKG-MB-06, PKG-MB-07, PKG-MB-09 |
-| MB-TYPE-01 | open / 已复现 | MediaBunny proxy declares only Canvas while exposing a shim and changes CommonJS export generation between releases | PKG-MB-08, PKG-MB-10 |
+| MB-TYPE-01 | resolved / 已复现 | MediaBunny proxy declares only Canvas while exposing a shim and changes CommonJS export generation between releases | PKG-MB-08, PKG-MB-10 |
 | MB-CAP-01 | open / 已复现 | Current Windows WebKit lacks WebCodecs and Web Audio constructors needed by historical MediaBunny proxies | PKG-MB-02, PKG-MB-09 |
-| MB-READY-01 | open / 已复现 | MediaBunny historical readiness can repeat for trackless input and occur after capability errors | PKG-MB-04, PKG-MB-09 |
+| MB-READY-01 | resolved / 已复现 | MediaBunny historical readiness can repeat for trackless input and occur after capability errors | PKG-MB-04, PKG-MB-09 |
diff --git a/refactor/risks.json b/refactor/risks.json
index 1797d9c4c..8d9b6bb54 100644
--- a/refactor/risks.json
+++ b/refactor/risks.json
@@ -3679,15 +3679,17 @@
         "PKG-MB-08",
         "PKG-MB-10"
       ],
-      "compatibleResolution": "Preserve optional whole-factory and exact Canvas assignment, model explicit shim capabilities separately and verify historical default namespace and callable consumers. MB-08 entry checkpoint preserves exact optional factory/Canvas assignment, adds opt-in checked media types without SDK imports, and fixes classic legacy/NodeNext ESM resolution. Seventeen installed compiler cases plus runtime exports passed against two frozen releases and candidate; seven candidate cases reject fifteen invalid uses each. Type facade/runtime export part is verified; final MB-08 capability and MB-10 distribution gates remain open.",
+      "compatibleResolution": "Preserved exact optional whole-factory and HTMLCanvasElement result; real VideoShim implements opt-in media/Player/HLS/synthetic-frame types without modern SDK declarations leaking to older compilers. Conditional ESM declarations and classic legacy resolution work. Runtime supports both historical default namespace and callable use without a required default property narrowing factory replacement. Final isolated installs of two frozen releases and candidate pass 17 compiler/runtime cases; seven candidate modes each reject fifteen invalid uses and check bidirectional assignments against actual frozen declaration bytes. Complete distribution/license/device gates remain separate.",
       "closureCriteria": "Actual installed old/candidate compiler and runtime export matrices pass with negative controls; any incompatible declaration generation requires an explicit decision.",
-      "status": "open",
+      "status": "resolved",
       "evidence": [
         "refactor/baselines/mb-release.json",
         "refactor/baselines/mb-contract.md",
         "refactor/changes/2026-09-12-PKG-MB-01-contract.md",
         "refactor/changes/2026-09-12-PKG-MB-08-entry-checkpoint.md",
-        "refactor/baselines/mb-entry-checkpoint.json"
+        "refactor/baselines/mb-entry-checkpoint.json",
+        "refactor/changes/2026-09-12-PKG-MB-08-capability.md",
+        "refactor/baselines/mb-capability-validation.json"
       ]
     },
     {
@@ -3711,20 +3713,22 @@
     {
       "id": "MB-READY-01",
       "title": "MediaBunny historical readiness can repeat for trackless input and occur after capability errors",
-      "status": "open",
+      "status": "resolved",
       "confirmation": "reproduced",
       "owners": [
         "PKG-MB-04",
         "PKG-MB-09"
       ],
-      "compatibleResolution": "Use explicit coordinated readiness and failure state, preserving valid event order while preventing duplicate or stale callbacks; evaluate trackless behavior separately from normal media. MB-04 coordinates metadata once, suppresses stale readiness and rejects trackless input before decoder setup. Existing-track unsupported-codec behavior and full native combinations remain MB-05/06/09; risk stays open. MB-08 entry checkpoint reproduces remaining false readiness in both previous and candidate builds: actual SDK-parsed video-only MP4 with controlled canDecode=false and AudioContext yields null audio/video sinks but readyState 4 and all readiness events, including replaceTracks. Keep open for the next MB-08 capability implementation; this controlled case is not native decoding evidence.",
+      "compatibleResolution": "Coordinated metadata publishes once, trackless input rejects before decoder setup, and stale callbacks cannot publish. MB-08 additionally rejects existing but wholly undecodable tracks before metadata/data/canplay and before replacement success, preserving one usable audio/video track, SDK query errors and late-operation cancellation. Sixteen controlled Node cases and thirty added browser cases distinguish twelve controlled rejection cases, eight native partial-decoder playback cases and ten missing-API controls; the final 150-case media suite passes. Physical Safari/support-range work remains MB-CAP-01 rather than being claimed from these controls.",
       "closureCriteria": "Candidate metadata/data/canplay ordering and counts pass normal, absent-track and failure interleavings in native browsers and controlled race tests.",
       "evidence": [
         "refactor/changes/2026-09-12-PKG-MB-02-baseline.md",
         "refactor/baselines/mb-behavior-validation.json",
         "refactor/changes/2026-09-12-PKG-MB-04-coordination.md",
         "refactor/baselines/mb-coordination-validation.json",
-        "refactor/baselines/mb-entry-checkpoint.json"
+        "refactor/baselines/mb-entry-checkpoint.json",
+        "refactor/changes/2026-09-12-PKG-MB-08-capability.md",
+        "refactor/baselines/mb-capability-validation.json"
       ]
     }
   ]
diff --git a/refactor/tasks.json b/refactor/tasks.json
index 755979633..a137f8aeb 100644
--- a/refactor/tasks.json
+++ b/refactor/tasks.json
@@ -3546,14 +3546,17 @@
         "ENG-04",
         "ENG-06"
       ],
-      "status": "doing",
+      "status": "done",
       "risk": "H",
       "deliverable": "8 个自有 JS 模块迁移与 Result/shim 类型",
       "acceptance": "解码器/Stream/DOM 类型清楚，旧 Option 和 art.mediabunny 使用保持",
       "evidence": [
         "baselines/mb-entry-source.json",
         "changes/2026-09-12-PKG-MB-08-entry-checkpoint.md",
-        "baselines/mb-entry-checkpoint.json"
+        "baselines/mb-entry-checkpoint.json",
+        "baselines/mb-capability-source.json",
+        "changes/2026-09-12-PKG-MB-08-capability.md",
+        "baselines/mb-capability-validation.json"
       ]
     },
     {
diff --git a/test/browser/mediabunny-capability.spec.js b/test/browser/mediabunny-capability.spec.js
new file mode 100644
index 000000000..1aafce5aa
--- /dev/null
+++ b/test/browser/mediabunny-capability.spec.js
@@ -0,0 +1,118 @@
+import assert from 'node:assert/strict'
+import fs from 'node:fs'
+import { hash } from '../../refactor/scripts/releases.mjs'
+import { mbCandidate } from '../helpers/mediabunny.js'
+import { expect, test } from './fixtures.js'
+
+const implementation = await mbCandidate()
+const manifest = JSON.parse(fs.readFileSync(new URL('./media/hls/manifest.json', import.meta.url)))
+const hls = new Map(Object.entries(manifest.files).map(([name, expected]) => {
+  const bytes = fs.readFileSync(new URL(`./media/hls/${name}`, import.meta.url))
+  assert.equal(hash(bytes), expected.sha256)
+  return [name, bytes]
+}))
+
+for (const core of ['published', 'candidate']) {
+  for (const scenario of ['video-unsupported', 'audio-unsupported', 'mixed-video-unsupported', 'mixed-audio-unsupported', 'replacement']) {
+    test(`MediaBunny ${implementation.name}: ${core} core decoder capability ${scenario}`, async ({ page, browserName }, testInfo) => {
+      await page.route('**/mb-cap-hls/**', async (route) => {
+        const name = new URL(route.request().url()).pathname.split('/').at(-1)
+        const body = hls.get(name)
+        await route.fulfill({ status: body ? 200 : 404, body: body || 'Missing fixture', contentType: name.endsWith('.m3u8') ? 'application/vnd.apple.mpegurl' : 'video/mp2t' })
+      })
+      await page.goto(`/test/player.html?core=${core}`)
+      await page.addScriptTag({ content: `(() => { const module = { exports: {} }; const exports = module.exports;
+        ${implementation.code}; window.mbFactory = module.exports.default || module.exports; })();` })
+      const capabilities = await page.evaluate(() => ({ AudioContext: typeof AudioContext, webkitAudioContext: typeof window.webkitAudioContext, AudioDecoder: typeof AudioDecoder, VideoDecoder: typeof VideoDecoder }))
+      let outcome = 'unverified'
+      let result
+      try {
+        await page.evaluate((scenario) => {
+          window.mbEvents = []
+          window.mbQueries = { video: 0, audio: 0 }
+          window.mbBlock = scenario === 'replacement' ? [] : [scenario.includes('video-') ? 'video' : 'audio']
+          window.art = new window.Artplayer({
+            container: '.player',
+            url: '',
+            muted: true,
+            setting: true,
+            proxy: window.mbFactory({ m3u8: { quality: { control: true, setting: true }, audio: { control: true, setting: true } } }),
+          })
+          window.mbCanvas = window.art.video
+          const engine = window.mbCanvas.engine
+          for (const kind of ['video', 'audio']) {
+            const load = engine[kind].load.bind(engine[kind])
+            engine[kind].load = (media, ...args) => {
+              const track = media[`${kind}Track`]
+              if (track && window.mbBlock.includes(kind)) {
+                track.canDecode = async () => {
+                  window.mbQueries[kind]++
+                  return false
+                }
+              }
+              return load(media, ...args)
+            }
+          }
+          for (const name of ['loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'seeked', 'error'])
+            window.mbCanvas.events.addEventListener(name, () => window.mbEvents.push(name))
+          const source = scenario === 'video-unsupported' ? '/test/pattern.mp4' : scenario === 'audio-unsupported' ? '/test/audio-tone.m4a' : '/mb-cap-hls/master.m3u8'
+          window.mbLoading = engine.load(source)
+          document.querySelector('#play').onclick = () => window.art.play()
+        }, scenario)
+        await page.evaluate(() => window.mbLoading)
+        if (capabilities.AudioContext === 'undefined' && capabilities.webkitAudioContext === 'undefined') {
+          expect(browserName).toBe('webkit')
+          expect(await page.evaluate(() => window.mbCanvas.error?.code)).toBe(4)
+          expect(await page.evaluate(() => window.art.isReady)).toBe(false)
+          outcome = 'unsupported-capability-control'
+          return
+        }
+        if (scenario === 'replacement') {
+          expect(await page.evaluate(() => window.art.isReady)).toBe(true)
+          await expect(page.locator('.art-control-mediabunny-quality')).toHaveCount(1)
+          const error = await page.evaluate(async () => {
+            window.mbEvents.length = 0
+            window.mbBlock = ['video', 'audio']
+            try {
+              await window.mbCanvas.switchM3u8Quality('auto')
+              return null
+            }
+            catch (error) { return error.message }
+          })
+          expect(error).toBe('Input has no decodable audio or video tracks.')
+          await expect(page.locator('.art-control-mediabunny-quality')).toHaveCount(0)
+          await expect(page.locator('.art-control-mediabunny-audio')).toHaveCount(0)
+        }
+        if (scenario.startsWith('mixed-')) {
+          expect(await page.evaluate(() => window.art.isReady)).toBe(true)
+          await page.click('#play')
+          await expect.poll(() => page.evaluate(() => window.mbCanvas.currentTime)).toBeGreaterThan(0.2)
+          result = await page.evaluate(() => ({ video: Boolean(window.mbCanvas.engine.video.videoSink), audio: Boolean(window.mbCanvas.engine.audio.audioSink), nodes: window.mbCanvas.engine.audio.queuedNodes.size, width: window.mbCanvas.videoWidth, events: window.mbEvents, error: window.mbCanvas.error, queries: window.mbQueries }))
+          expect(result.error).toBe(null)
+          expect(result.events).toEqual(['loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough'])
+          expect(result.video).toBe(scenario === 'mixed-audio-unsupported')
+          expect(result.audio).toBe(scenario === 'mixed-video-unsupported')
+          if (result.audio)
+            expect(result.nodes).toBeGreaterThan(0)
+          if (result.video)
+            expect(result.width).toBeGreaterThan(0)
+          outcome = 'native-partial-decoder-playback-with-controlled-unsupported-track'
+        }
+        else {
+          result = await page.evaluate(() => ({ readyState: window.mbCanvas.readyState, networkState: window.mbCanvas.networkState, error: window.mbCanvas.error, events: window.mbEvents, queries: window.mbQueries }))
+          expect(result.readyState).toBe(0)
+          expect(result.networkState).toBe(3)
+          expect(result.error).toEqual({ code: 4, message: 'Input has no decodable audio or video tracks.' })
+          expect(result.events).toEqual(['error'])
+          outcome = 'controlled-unsupported-track-rejected-before-readiness'
+        }
+        const kind = scenario.includes('video-') ? 'video' : 'audio'
+        expect(result.queries).toEqual(scenario === 'replacement' ? { video: 1, audio: 1 } : { video: kind === 'video' ? 1 : 0, audio: kind === 'audio' ? 1 : 0 })
+      }
+      finally {
+        await page.evaluate(() => window.art?.destroy(false))
+        await testInfo.attach('mediabunny-capability', { contentType: 'application/json', body: JSON.stringify({ implementation: implementation.name, sha256: hash(implementation.code), core, scenario, capabilities, outcome, result, scope: 'Actual SDK parsing, Canvas, Web Audio and two cores. canDecode=false is deliberately controlled for selected tracks; partial cases play the remaining native decoder. Windows WebKit missing APIs is a separate control, not playback.' }) })
+      }
+    })
+  }
+}
diff --git a/test/mediabunny-capability.test.js b/test/mediabunny-capability.test.js
new file mode 100644
index 000000000..c1241aeee
--- /dev/null
+++ b/test/mediabunny-capability.test.js
@@ -0,0 +1,183 @@
+import assert from 'node:assert/strict'
+import fs from 'node:fs'
+// eslint-disable-next-line test/no-import-node-test -- Actual SDK tracks and decoder/coordinator code with controlled capability responses.
+import test from 'node:test'
+import { mbCandidate, mbEnvironment } from './helpers/mediabunny.js'
+
+const implementation = await mbCandidate()
+const sources = {
+  video: new Blob([fs.readFileSync(new URL('./browser/media/pattern.mp4', import.meta.url))]),
+  audio: new Blob([fs.readFileSync(new URL('./browser/media/audio-tone.m4a', import.meta.url))]),
+}
+const readiness = ['loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough']
+const flush = () => new Promise(resolve => setImmediate(resolve))
+const message = 'Input has no decodable audio or video tracks.'
+function deferred() {
+  let resolve, reject
+  const promise = new Promise((yes, no) => {
+    resolve = yes
+    reject = no
+  })
+  return { promise, resolve, reject }
+}
+function environment(kind, response = false) {
+  const env = mbEnvironment(implementation)
+  env.globals.console = { ...console, error() {}, warn() {} }
+  env.globals.window.AudioContext = class {
+    currentTime = 0
+    state = 'running'
+    destination = {}
+    createGain() { return { gain: { value: 0 }, connect() {}, disconnect() {} } }
+    async close() { this.state = 'closed' }
+  }
+  const canvas = env.factory()(env.art)
+  const engine = canvas.engine
+  const events = []
+  const queries = []
+  for (const name of [...readiness, 'error', 'play', 'playing', 'seeked'])
+    canvas.events.addEventListener(name, () => events.push(name))
+  const decoder = engine[kind]
+  const load = decoder.load.bind(decoder)
+  decoder.load = (media, ...args) => {
+    const track = media[`${kind}Track`]
+    assert(track, 'The real input must contain the selected track')
+    if (response === null) {
+      Object.defineProperty(track, 'codec', { value: null, configurable: true })
+    }
+    else {
+      track.canDecode = () => {
+        queries.push(track)
+        return typeof response === 'function' ? response() : Promise.resolve(response)
+      }
+    }
+    return load(media, ...args)
+  }
+  return { ...env, canvas, engine, decoder, events, queries }
+}
+
+for (const kind of ['video', 'audio']) {
+  for (const response of [false, null]) {
+    test(`MediaBunny ${kind}-only input with capability ${response} rejects before any readiness`, async () => {
+      const env = environment(kind, response)
+      await env.engine.load(sources[kind])
+      assert.equal(env.canvas.readyState, 0)
+      assert.deepEqual({ ...env.canvas.error }, { code: 4, message })
+      assert.equal(env.canvas.networkState, 3)
+      assert.deepEqual(env.events, ['error'])
+      assert.equal(env.engine.input, null)
+      assert.equal(env.engine.media, null)
+      assert.equal(env.queries.length, response === null ? 0 : 1)
+      assert.equal(env.canvas.canPlayType('video/mp4'), 'maybe')
+      env.art.emit('destroy')
+    })
+  }
+  test(`MediaBunny ${kind} track replacement cannot publish readiness without a decoder`, async () => {
+    const env = environment(kind)
+    let prepared = false
+    const load = env.decoder.load
+    env.decoder.load = (media, ...args) => {
+      if (!prepared) {
+        prepared = true
+        // Prepare a supported decoder without native decoding in Node; keep the real Input alive.
+        env.decoder[`${kind}Sink`] = {}
+        args[0]?.()
+        return Promise.resolve()
+      }
+      return load(media, ...args)
+    }
+    await env.engine.load(sources[kind])
+    assert.equal(env.canvas.readyState, 4)
+    assert.equal(env.canvas.error, null)
+    env.events.length = 0
+    await assert.rejects(env.engine.replaceTracks({}), error => error.message === message)
+    assert.equal(env.canvas.readyState, 0)
+    assert.equal(env.canvas.paused, true)
+    assert.equal(env.canvas.seeking, false)
+    assert.equal(env.canvas.networkState, 3)
+    assert.deepEqual(env.events, ['error'])
+    env.art.emit('destroy')
+  })
+}
+
+test('MediaBunny audio-only input preserves one readiness sequence when its decoder is supported', async () => {
+  const env = environment('audio', true)
+  await env.engine.load(sources.audio)
+  assert.equal(env.canvas.readyState, 4)
+  assert.equal(env.canvas.error, null)
+  assert(env.engine.audio.audioSink)
+  assert.equal(env.engine.video.videoSink, null)
+  assert.deepEqual(env.events, readiness)
+  assert.equal(env.queries.length, 1)
+  env.art.emit('destroy')
+})
+
+for (const ending of ['source', 'destroy']) {
+  for (const result of ['false', 'reject']) {
+    test(`MediaBunny late capability ${result} after ${ending} cannot publish readiness or errors`, async () => {
+      const pending = deferred()
+      const env = environment('video', () => pending.promise)
+      const loading = env.engine.load(sources.video)
+      await flush()
+      assert.equal(env.queries.length, 1)
+      if (ending === 'source') {
+        env.engine.performLoad = async () => {}
+        await env.engine.load('replacement.mp4')
+      }
+      else {
+        env.art.emit('destroy')
+      }
+      await loading
+      env.events.length = 0
+      if (result === 'false')
+        pending.resolve(false)
+      else pending.reject(new Error('stale decoder query'))
+      await flush()
+      assert.deepEqual(env.events, [])
+      assert.equal(env.canvas.error, null)
+      env.art.emit('destroy')
+    })
+  }
+}
+
+for (const supported of [false, true]) {
+  test(`MediaBunny pause during capability query preserves load result ${supported} without autoplay`, async () => {
+    const pending = deferred()
+    const env = environment('audio', () => pending.promise)
+    const loading = env.engine.load(sources.audio)
+    await flush()
+    env.engine.pause()
+    pending.resolve(supported)
+    await loading
+    assert.equal(env.canvas.paused, true)
+    assert.deepEqual(env.events, supported ? readiness : ['error'])
+    assert.equal(env.queries.length, 1)
+    env.art.emit('destroy')
+  })
+}
+
+for (const kind of ['video', 'audio']) {
+  test(`MediaBunny active ${kind} capability rejection keeps the SDK error instead of inventing unsupported status`, async () => {
+    const env = environment(kind, () => Promise.reject(new Error('Decoder capability query failed')))
+    await env.engine.load(sources[kind])
+    assert.deepEqual({ ...env.canvas.error }, { code: 4, message: 'Decoder capability query failed' })
+    assert.deepEqual(env.events, ['error'])
+    assert.equal(env.canvas.readyState, 0)
+    env.art.emit('destroy')
+  })
+}
+
+test('MediaBunny supported source can recover after an unsupported source without keeping its error', async () => {
+  let supported = false
+  const env = environment('audio', () => Promise.resolve(supported))
+  await env.engine.load(sources.audio)
+  assert.equal(env.canvas.error?.message, message)
+  supported = true
+  env.events.length = 0
+  await env.engine.load(sources.audio)
+  assert.equal(env.canvas.error, null)
+  assert.equal(env.canvas.readyState, 4)
+  assert.equal(env.canvas.networkState, 1)
+  assert.deepEqual(env.events, readiness)
+  assert.equal(env.queries.length, 2)
+  env.art.emit('destroy')
+})
diff --git a/test/mediabunny-coordination.test.js b/test/mediabunny-coordination.test.js
index 23de460be..e4f8bff2e 100644
--- a/test/mediabunny-coordination.test.js
+++ b/test/mediabunny-coordination.test.js
@@ -363,6 +363,8 @@ async function loadingEnvironment() {
   const audio = deferred()
   const metadata = {}
   env.engine.video.load = (media, callback) => {
+    // This fixture represents a supported decoder whose metadata/completion are delayed.
+    env.engine.video.videoSink = {}
     metadata.video = callback
     return video.promise
   }
@@ -493,6 +495,8 @@ function replacementEnvironment() {
   const track = { isLive: async () => false }
   const input = { getDurationFromMetadata: async () => 8 }
   env.engine.media = { input, videoTrack: track, audioTrack: null, isHls: true, videoMode: 'auto', audioMode: 'auto', duration: 8 }
+  // The already selected media has a working video decoder before a replacement starts.
+  env.engine.video.videoSink = {}
   env.engine.video.load = async () => env.calls.push('video:load')
   env.engine.audio.load = async () => env.calls.push('audio:load')
   return env