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ArtPlayer/docs/compiled/artplayer-proxy-mediabunny.legacy.js
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/*!
* artplayer-proxy-mediabunny.js v1.2.0
* Github: https://github.com/zhw2590582/ArtPlayer
* (c) 2017-2026 Harvey Zhao
* Released under the MIT License.
*/
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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){I(null!==e.bitDepthLumaMinus8),I(null!==e.bitDepthChromaMinus8),I(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=F(e);let i=0;const r=t.getUint8(i++),n=t.getUint8(i++),s=t.getUint8(i++),a=t.getUint8(i++),o=3&t.getUint8(i++),l=31&t.getUint8(i++),c=[];for(let f=0;f<l;f++){const r=t.getUint16(i,!1);i+=2,c.push(e.subarray(i,i+r)),i+=r}const u=t.getUint8(i++),d=[];for(let f=0;f<u;f++){const r=t.getUint16(i,!1);i+=2,d.push(e.subarray(i,i+r)),i+=r}const h={configurationVersion:r,avcProfileIndication:n,profileCompatibility:s,avcLevelIndication:a,lengthSizeMinusOne:o,sequenceParameterSets:c,pictureParameterSets:d,chromaFormat:null,bitDepthLumaMinus8:null,bitDepthChromaMinus8:null,sequenceParameterSetExt:null};if((100===n||110===n||122===n||144===n)&&i+4<=e.length){const r=3&t.getUint8(i++),n=7&t.getUint8(i++),s=7&t.getUint8(i++),a=t.getUint8(i++);h.chromaFormat=r,h.bitDepthLumaMinus8=n,h.bitDepthChromaMinus8=s;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}h.sequenceParameterSetExt=o}return h}catch(t){return We._error("Error deserializing AVC Decoder Configuration Record:",t),null}},pt={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}},gt=e=>{var t;try{const i=lt(e),r=new Ke(i);r.skipBits(1),r.skipBits(2);if(7!==r.readBits(5))return null;const n=r.readAlignedByte(),s=r.readAlignedByte(),a=r.readAlignedByte();B(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=B(r),3===o&&(u=r.readBits(1)),l=B(r),c=B(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+_(r)+256)%256}i=0===n?i:n}}}}B(r);const d=B(r);if(0===d)B(r);else if(1===d){r.skipBits(1),_(r),_(r);const e=B(r);for(let t=0;t<e;t++)_(r)}B(r),r.skipBits(1);const h=B(r),f=B(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=B(r),t=B(r),i=B(r),n=B(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,S=0,w={num:1,den:1},P=null,x=null,E=null,R=null;const F=r.pos;if(r.readBits(1)){if(r.readBits(1)){const e=r.readBits(8);if(255===e)w={num:r.readBits(16),den:r.readBits(16)};else{const t=pt[e];t&&(w=t)}}r.readBits(1)&&r.skipBits(1);if(r.readBits(1)){r.skipBits(3),S=r.readBits(1);r.readBits(1)&&(b=r.readBits(8),T=r.readBits(8),v=r.readBits(8))}r.readBits(1)&&(B(r),B(r));r.readBits(1)&&(r.skipBits(32),r.skipBits(32),r.skipBits(1));const e=r.readBits(1);e&&kt(r);const t=r.readBits(1);t&&kt(r),(e||t)&&r.skipBits(1),r.skipBits(1),E=r.pos,R=r.readBits(1),R&&(r.skipBits(1),B(r),B(r),B(r),B(r),P=B(r),x=B(r))}if(null===P){I(null===x);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=fi.find(e=>e.level>=a))?t:C(fi),n=Math.min(Math.floor(r.maxDpbMbs/(e*i)),16);P=n,x=n}else P=0,x=0}return I(null!==x),{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:w,colourPrimaries:b,matrixCoefficients:v,transferCharacteristics:T,fullRangeFlag:S,numReorderFrames:P,maxDecFrameBuffering:x,vuiParametersFlagBitOffset:F,bitstreamRestrictionFlagBitOffset:E,bitstreamRestrictionFlag:R}}catch(i){return We._error("Error parsing AVC SPS:",i),null}},kt=e=>{const t=B(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)B(e),B(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},yt=e=>{I(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new Ke(e.emulationUnpreventedBytes),r=new Ke(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)):(I(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),E(r,2),E(r,1),E(r,16),E(r,16),E(r,e.numReorderFrames),E(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const n=r.pos/8;return I(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))},bt=(e,t)=>{if(t.description){const i=3&R(t.description)[21];return st(e,i+1)}return nt(e)},Tt=e=>e>>1&63,vt=e=>{try{const t=new Ke(lt(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}=wt(t,i);B(t);const u=B(t);let d=0;3===u&&(d=t.readBits(1));const h=B(t),f=B(t);let m=h,p=f;if(t.readBits(1)){const e=B(t),i=B(t),r=B(t),n=B(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=B(t),k=B(t);B(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)B(t),b=B(t),B(t);B(t),B(t),B(t),B(t),B(t),B(t),t.readBits(1)&&t.readBits(1)&&Pt(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),B(t),B(t),t.skipBits(1));const T=B(t);if(It(t,T),t.readBits(1)){const e=B(t);for(let i=0;i<e;i++)B(t),t.skipBits(1)}t.skipBits(1),t.skipBits(1);let v=2,S=2,w=2,P=0,I=0,x={num:1,den:1};if(t.readBits(1)){const e=Ct(t,i);x=e.pixelAspectRatio,v=e.colourPrimaries,S=e.transferCharacteristics,w=e.matrixCoefficients,P=e.fullRangeFlag,I=e.minSpatialSegmentationIdc}return{displayWidth:m,displayHeight:p,pixelAspectRatio:x,colourPrimaries:v,transferCharacteristics:S,matrixCoefficients:w,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 We._error("Error parsing HEVC SPS:",t),null}},St=e=>{try{const t=[],i=[],r=[],n=[];for(const l of nt(e)){const s=e.subarray(l.offset,l.offset+l.length),a=Tt(s[0]);a===it.VPS_NUT?t.push(s):a===it.SPS_NUT?i.push(s):a===it.PPS_NUT?r.push(s):a!==it.PREFIX_SEI_NUT&&a!==it.SUFFIX_SEI_NUT||n.push(s)}if(0===i.length||0===r.length)return null;const s=vt(i[0]);if(!s)return null;let a=0;if(r.length>0){const e=r[0],t=new Ke(lt(e));t.skipBits(16),B(t),B(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),B(t),B(t),_(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&B(t),_(t),_(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:it.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:it.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:it.PPS_NUT,nalUnits:r}]:[],...n.length?[{arrayCompleteness:1,nalUnitType:Tt(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 We._error("Error building HEVC Decoder Configuration Record:",t),null}},wt=(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}},Pt=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&&_(e);for(let t=0;t<i;t++)_(e)}else B(e)}},It=(e,t)=>{const i=[];for(let r=0;r<t;r++)i[r]=xt(e,r,t,i)},xt=(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-(B(e)+1)}else o=t-1;e.readBits(1),B(e);const a=null!=(n=r[o])?n:0;for(let t=0;t<=a;t++){e.readBits(1)||e.readBits(1)}s=r[o]}else{const t=B(e),i=B(e);for(let r=0;r<t;r++)B(e),e.readBits(1);for(let r=0;r<i;r++)B(e),e.readBits(1);s=t+i}return s},Ct=(e,t)=>{let i=2,r=2,n=2,s=0,a=0,o={num:1,den:1};if(e.readBits(1)){const t=e.readBits(8);if(255===t)o={num:e.readBits(16),den:e.readBits(16)};else{const e=pt[t];e&&(o=e)}}return e.readBits(1)&&e.readBits(1),e.readBits(1)&&(e.readBits(3),s=e.readBits(1),e.readBits(1)&&(i=e.readBits(8),r=e.readBits(8),n=e.readBits(8))),e.readBits(1)&&(B(e),B(e)),e.readBits(1),e.readBits(1),e.readBits(1),e.readBits(1)&&(B(e),B(e),B(e),B(e)),e.readBits(1)&&(e.readBits(32),e.readBits(32),e.readBits(1)&&B(e),e.readBits(1)&&Bt(e,!0,t)),e.readBits(1)&&(e.readBits(1),e.readBits(1),e.readBits(1),a=B(e),B(e),B(e),B(e),B(e)),{pixelAspectRatio:o,colourPrimaries:i,transferCharacteristics:r,matrixCoefficients:n,fullRangeFlag:s,minSpatialSegmentationIdc:a}},Bt=(e,t,i)=>{let 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?B(e):i=1===e.readBits(1);let a=1;if(!i){a=B(e)+1}r&&Et(e,a,s),n&&Et(e,a,s)}},Et=(e,t,i)=>{for(let r=0;r<t;r++)B(e),B(e),i&&(B(e),B(e)),e.readBits(1)};var _t,Rt;(Rt=_t||(_t={}))[Rt.audAllowed=0]="audAllowed",Rt[Rt.beforeFirstVcl=1]="beforeFirstVcl",Rt[Rt.afterFirstVcl=2]="afterFirstVcl",Rt[Rt.eoBitstreamAllowed=3]="eoBitstreamAllowed",Rt[Rt.noMoreDataAllowed=4]="noMoreDataAllowed";const Ft=(e,t)=>{const i=new Set;let r=_t.audAllowed;for(const s of bt(e,t)){if(r===_t.noMoreDataAllowed){i.add(s.offset);continue}const t=Tt(e[s.offset]);if(r===_t.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let n=!1;35===t?r>_t.audAllowed?n=!0:r=_t.beforeFirstVcl:t<=31?r>_t.afterFirstVcl?n=!0:r=_t.afterFirstVcl:36===t?r!==_t.afterFirstVcl?n=!0:r=_t.eoBitstreamAllowed:37===t?r<_t.afterFirstVcl?n=!0:r=_t.noMoreDataAllowed:32===t||33===t||34===t||39===t||t>=41&&t<=44||t>=48&&t<=55?r>_t.beforeFirstVcl?n=!0:r=_t.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r<_t.afterFirstVcl&&(n=!0),n&&i.add(s.offset)}if(0===i.size)return null;const n=[];for(const s of bt(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&R(t.description)[21];return dt(e,i+1)}return ut(e)})(n,t)},At={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}},Dt=e=>{var t,i,r;const n=new Ke(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=C(mi).level;for(const m of mi)if(d<=m.maxPictureSize){h=m.level;break}const f=At[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}},Mt=function*(e){const t=new Ke(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*u(2,7*i),!(128&r))break;if(7===i&&128&r)return null}return e>u(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);I(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+a)},t.skipBits(8*a)}},Nt=e=>{for(const{type:t,data:i}of Mt(e)){if(1!==t)continue;const e=new Ke(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,S=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&&(S=e.readBits(2))),{profile:r,level:s,tier:a,bitDepth:m,monochrome:p,chromaSubsamplingX:T,chromaSubsamplingY:v,chromaSamplePosition:S,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},Ot=e=>{if(e.length<36)return null;const t=F(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)}},Lt=[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],zt=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 Ke(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}},Ut=(e,t,i)=>{switch(e){case"avc":for(const e of at(i,t)){const t=i[e.offset],r=ot(t);if(r>=et.NON_IDR_SLICE&&r<=et.SLICE_DPC)return"delta";if(r===et.IDR)return"key";if(r===et.SEI&&!Pe()){const t=i.subarray(e.offset,e.offset+e.length),r=lt(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 Ke(r);e.pos=8*n;const t=B(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 bt(i,t)){const t=Tt(i[e.offset]);if(t<it.BLA_W_LP)return"delta";if(t<=it.RSV_IRAP_VCL23)return"key"}return"delta";case"vp8":return 0===(1&i[0])?"key":"delta";case"vp9":{const e=new Ke(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 Mt(i))if(1===t){const t=new Ke(r);t.skipBits(4),e=!!t.readBits(1)}else if(3===t||6===t||7===t){if(e)return"key";const t=new Ke(r);if(t.readBits(1))return null;return 0===t.readBits(2)?"key":"delta"}return null}case"prores":return"key";default:te(e),I(!1)}};var qt,Wt;(Wt=qt||(qt={}))[Wt.STREAMINFO=0]="STREAMINFO",Wt[Wt.VORBIS_COMMENT=4]="VORBIS_COMMENT",Wt[Wt.PICTURE=6]="PICTURE";const Ht=(e,t)=>{var i,r;const n=F(e);let s=0;const a=n.getUint32(s,!0);s+=4;const o=A.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=A.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=_e(c),i=F(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=A.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})}}}},Vt=[2,1,2,3,3,4,4,5],jt=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new Ke(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)}},Kt=[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],Xt=[1,2,3,6],$t=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new Ke(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=Xt[s];let d;d=n<3?Je[n]/1e3:Ze[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}]}},Gt=e=>{const t=e.substreams[0];return I(t),t.fscod<3?Je[t.fscod]:null!==t.fscod2&&t.fscod2<3?Ze[t.fscod2]:null},Qt=e=>{const t=e.substreams[0];I(t);let i=Vt[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},Yt=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],Jt=[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],Zt=[16,16,20,20,0,24,24,0],ei=[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],ii=[32e3,44100,48e3,0],ri=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],ni=[512,1024,2048,4096],si=e=>{const t=oi(e),i=F(e);let r=t?4*Math.ceil(t.frameSize/4):0,n=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=li(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}},ai=e=>{const t=si(e);return(null==t?void 0:t.core)?t.hasExtensions?"dtsh":"dtsc":null},oi=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 Ke(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>=ei.length)return null;const a=Yt[t.readBits(4)];if(0===a)return null;const o=Jt[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=Zt[t.readBits(3)];if(0===c)return null;const u=0!==l;return{frameSize:n,sampleRate:a,numberOfChannels:ei[s]+(u?1:0),sampleCount:32*r,channelLayout:ti[s]|(u?8:0),amode:s,lfePresent:u,bitRate:o,pcmResolution:c}},li=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 Ke(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=ii[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*de(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=ri[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}}},ci=e=>de(e)+de(44646&e),ui=["avc","hevc","vp9","av1","vp8","prores"],di=["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"],hi=["aac","opus","mp3","vorbis","flac","ac3","eac3","dts",...di],fi=[{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}],mi=[{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}],pi=".01.01.01.01.00",gi=".0.110.01.01.01.0",ki=["ap4x","ap4h","apch","apcn","apcs","apco"],yi=["dtsc","dtsh","dtsl","dtse"],bi=e=>{const{codec:t,codecDescription:i,colorSpace:r,avcCodecInfo:n,hevcCodecInfo:s,vp9CodecInfo:a,av1CodecInfo:o,proresFormat:l}=e;if("avc"===t){if(I(null!==e.avcType),n){const t=new Uint8Array([n.avcProfileIndication,n.profileCompatibility,n.avcLevelIndication]);return`avc${e.avcType}.${K(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${e.avcType}.${K(i.subarray(1,4))}`}if("hevc"===t){let e,t,r,n,a,o;if(s)e=s.generalProfileSpace,t=s.generalProfileIdc,r=X(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=F(i),l=s.getUint8(1);e=l>>6&3,t=31&l,r=X(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=C(mi).level;for(const e of mi)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")}.${a.videoFullRangeFlag.toString().padStart(2,"0")}`,t.endsWith(pi)&&(t=t.slice(0,-15)),t}if("av1"===t){if(!o){const t=e.width*e.height;let i=C(mi).level;for(const e of mi)if(t<=e.maxPictureSize){i=e.level;break}return`av01.0.${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)?M[r.primaries]:1,u=(null==r?void 0:r.transfer)?O[r.transfer]:1,d=(null==r?void 0:r.matrix)?z[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(gi)&&(f=f.slice(0,-17)),f}if("prores"===t)return null!=l?l:"apch";throw null!==t&&te(t),new TypeError(`Unhandled codec '${t}'.`)},Ti=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=mt(e.codecDescription))?void 0:i.sequenceParameterSets[0]),r){const e=gt(r);if(e)return{primaries:N[e.colourPrimaries],transfer:L[e.transferCharacteristics],matrix:U[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"hevc":{let t=null==(n=null==(r=e.hevcCodecInfo)?void 0:r.arrays.find(e=>e.nalUnitType===it.SPS_NUT))?void 0:n.nalUnits[0];if(!t&&e.codecDescription&&(t=null==(a=null==(s=(e=>{try{const t=F(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,S=t.getUint8(i++),w=[];for(let P=0;P<S;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}w.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:w}}catch(t){return We._error("Error deserializing HEVC Decoder Configuration Record:",t),null}})(e.codecDescription))?void 0:s.arrays.find(e=>e.nalUnitType===it.SPS_NUT))?void 0:a.nalUnits[0]),t){const e=vt(t);if(e)return{primaries:N[e.colourPrimaries],transfer:L[e.transferCharacteristics],matrix:U[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"vp8":break;case"vp9":if(e.vp9CodecInfo)return{primaries:N[e.vp9CodecInfo.colourPrimaries],transfer:L[e.vp9CodecInfo.transferCharacteristics],matrix:U[e.vp9CodecInfo.matrixCoefficients],fullRange:!!e.vp9CodecInfo.videoFullRangeFlag};break;case"av1":if(e.av1CodecInfo)return{primaries:N[e.av1CodecInfo.colourPrimaries],transfer:L[e.av1CodecInfo.transferCharacteristics],matrix:U[e.av1CodecInfo.matrixCoefficients],fullRange:!!e.av1CodecInfo.videoFullRangeFlag};break;case"prores":if(e.proresCodecInfo)return{primaries:N[e.proresCodecInfo.colourPrimaries],transfer:L[e.proresCodecInfo.transferCharacteristics],matrix:U[e.proresCodecInfo.matrixCoefficients],fullRange:e.proresCodecInfo.fullRange}}return{primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0}},vi=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=Ge(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&&di.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},Si=48e3,wi=/^pcm-([usf])(\d+)(be)?$/,Pi=e=>{if(I(di.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=wi.exec(e);let i;I(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?u(2,7):0}},Ii=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":ki.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":yi.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":wi.test(e)?e:"webvtt"===e?"webvtt":null,xi=[44100,48e3,32e3],Ci=[-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],Bi=1483304551,Ei=1231971951,_i=(e,t)=>3===e?3===t?21:36:3===t?13:21,Ri=(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=Ci[16*a*4+16*c+(n>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=xi[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}},Fi=e=>{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var Ai,Di;(Di=Ai||(Ai={}))[Di.FrameCount=1]="FrameCount",Di[Di.FileSize=2]="FileSize",Di[Di.Toc=4]="Toc";const Mi=e=>3===e?1:2;class Ni{constructor(e){this.input=e}dispose(){}}const Oi=new Uint8Array(0);class Li{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===Oi&&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===Oi}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){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 Li(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 Li(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 zi=e=>{const t=F(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const n=K(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(K(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)}},Ui=(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),qi=e=>{let t=jo(e);const i=el(e,4);let r=8;1===t&&(t=Go(e),r=16);const n=t-r;return n<0?null:{name:i,totalSize:t,headerSize:r,contentSize:n}},Wi=e=>Xo(e)/65536,Hi=e=>Xo(e)/1073741824,Vi=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=zo(e);if(t|=127&i,0===(128&i))break}return t},ji=e=>{let t=qo(e);return e.skip(2),t=Math.min(t,e.remainingLength),A.decode(Lo(e,t))},Ki=e=>{const t=qi(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=jo(e);e.skip(4);const r=Lo(e,t.contentSize-8);switch(i){case 1:return A.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new He(r,"image/jpeg");case 14:return new He(r,"image/png");case 27:return new He(r,"image/bmp");default:return r}},Xi=16,$i=new Uint32Array(256),Gi=new Uint32Array(256),Qi=new Uint32Array(256),Yi=new Uint32Array(256),Ji=new Uint32Array(256),Zi=new Uint32Array(256),er=new Uint32Array(10);let tr=!1;class ir{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Xi/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Xi),this.out=new Uint8Array(Xi),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){I(16===e.byteLength),I(16===t.byteLength),tr||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,a=1;s<256;s++)i[s]=a,t[a]=s,a=a^a<<1^(128&a?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let n=r^r<<1^r<<2^r<<3^r<<4;n=n>>>8^255&n^99,e[s]=n}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);$i[s]=t<<24|t<<16|t<<8|t,Zi[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);Gi[s]=n,Qi[s]=n>>>8|n<<24,Yi[s]=n>>>16|n<<16,Ji[s]=n>>>24|n<<8}let n=1;for(let s=0;s<10;s++)er[s]=n<<24,n=n<<1^(128&n?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 n=4;n<44;n+=4){const e=this.roundkey[n-1];this.roundkey[n]=this.roundkey[n-4]^4278190080&$i[e>>>16&255]^16711680&$i[e>>>8&255]^65280&$i[e>>>0&255]^255&$i[e>>>24&255]^er[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]=Gi[255&$i[t>>>24&255]]^Qi[255&$i[t>>>16&255]]^Yi[255&$i[t>>>8&255]]^Ji[255&$i[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=Gi[e>>>24]^Qi[r>>>16&255]^Yi[i>>>8&255]^Ji[255&t]^this.roundkey[n],c=Gi[t>>>24]^Qi[e>>>16&255]^Yi[r>>>8&255]^Ji[255&i]^this.roundkey[n+1],u=Gi[i>>>24]^Qi[t>>>16&255]^Yi[e>>>8&255]^Ji[255&r]^this.roundkey[n+2],d=Gi[r>>>24]^Qi[i>>>16&255]^Yi[t>>>8&255]^Ji[255&e]^this.roundkey[n+3],e=l,t=c,i=u,r=d}const h=4278190080&Zi[e>>>24&255]^16711680&Zi[r>>>16&255]^65280&Zi[i>>>8&255]^255&Zi[t>>>0&255]^this.roundkey[40],f=4278190080&Zi[t>>>24&255]^16711680&Zi[e>>>16&255]^65280&Zi[r>>>8&255]^255&Zi[i>>>0&255]^this.roundkey[41],m=4278190080&Zi[i>>>24&255]^16711680&Zi[t>>>16&255]^65280&Zi[e>>>8&255]^255&Zi[r>>>0&255]^this.roundkey[42],p=4278190080&Zi[r>>>24&255]^16711680&Zi[i>>>16&255]^65280&Zi[t>>>8&255]^255&Zi[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 rr extends Ni{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(Ce(r)&&(r=yield r),!r)break;const n=e,s=qi(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=el(r,4);this.isQuickTime="qt "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(Ce(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){I(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);Ce(e)&&(e=yield e),I(e);const t=jo(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(Ce(e)&&(e=yield e),e){const t=qi(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);Ce(i)&&(i=yield i),i&&this.readContiguousBoxes(i)}}}}}))()}copyMetadataFromInitInput(e){return y(this,null,function*(){const t=yield e._getDemuxer();if(t.constructor!==rr)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(I(t.info),"video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new sr(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new ar(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;I(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&&di.includes(e.info.codec)&&0===r.sampleCompositionTimeOffsets.length){I("audio"===(null==(i=e.info)?void 0:i.type));const t=Pi(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=G(r.sampleTimingEntries,o,e=>e.startIndex),u=r.sampleTimingEntries[c],d=G(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=C(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);Ce(i)&&(i=yield i),I(i);const r=qi(i);I("moof"===(null==r?void 0:r.name));let n=this.reader.requestSlice(e,r.totalSize);Ce(n)&&(n=yield n),I(n),this.traverseBox(n);const s=this.lastReadFragment;I(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)dr(e,r.timestamp);else{const t=G(i,s.moofOffset-1,e=>e.moofOffset);if(-1!==t){const r=i[t];dr(e,r.endTimestamp)}}e.startTimestampIsFinal=!0}const r=G(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 pr(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=qi(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,m,p,g,k,y,b,T,v,S,w,P,B,E,_,R,D,M,O,z,q,H,V,j,X,$,G,Q,Y,J,Z,ee,te,ie,re,ne,se,oe,ce,ue,de,he,me,pe;const ge=e.filePos,ke=qi(e);if(!ke)return!1;const ye=e.filePos,be=ge+ke.totalSize;switch(ke.name){case"mdia":case"minf":case"dinf":case"mfra":case"edts":case"sinf":case"schi":case"wave":this.readContiguousBoxes(e.slice(ye,ke.contentSize));break;case"mvhd":{const t=zo(e);e.skip(3),1===t?(e.skip(16),this.movieTimescale=jo(e),this.movieDurationInTimescale=Go(e)):(e.skip(8),this.movieTimescale=jo(e),this.movieDurationInTimescale=jo(e))}break;case"trak":{const t={id:-1,demuxer:this,trackBacking:null,disposition:f(h({},je),{primary:!1}),info:null,timescale:-1,durationInMovieTimescale:-1,durationInMediaTimescale:-1,rotation:0,internalCodecId:null,name:null,languageCode:ae,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(ye,ke.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 sr(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new ar(e),this.tracks.push(t)}this.currentTrack=null}break;case"tkhd":{const t=this.currentTrack;if(!t)break;const i=zo(e),r=!!(1&Wo(e));if(t.disposition.default=r,0===i)e.skip(8),t.id=jo(e),e.skip(4),t.durationInMovieTimescale=jo(e);else{if(1!==i)throw new Error(`Incorrect track header version ${i}.`);e.skip(16),t.id=jo(e),e.skip(4),t.durationInMovieTimescale=Go(e)}e.skip(16);const n=[Wi(e),Wi(e),Hi(e),Wi(e),Wi(e),Hi(e),Wi(e),Wi(e),Hi(e)],s=x(le(hr(n),90));I(0===s||90===s||180===s||270===s),t.rotation=s}break;case"elst":{const t=this.currentTrack;if(!t)break;const i=zo(e);e.skip(3);let r=!1,n=0;const s=jo(e);for(let a=0;a<s;a++){const s=1===i?Go(e):jo(e),a=1===i?Qo(e):Xo(e),o=Wi(e);if(r){We._warn("Unsupported edit list: multiple edits are not currently supported. Only using first edit.");break}if(-1!==a){if(1!==o){We._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=zo(e);e.skip(3),0===i?(e.skip(8),t.timescale=jo(e),t.durationInMediaTimescale=jo(e)):1===i&&(e.skip(16),t.timescale=jo(e),t.durationInMediaTimescale=Go(e));let r=qo(e);if(r>0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;fe(t.languageCode)||(t.languageCode=ae)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=el(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:h({},W),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=ge,this.readContiguousBoxes(e.slice(ye,ke.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=zo(e);e.skip(3);const r=jo(e);for(let n=0;n<r;n++){const r=e.filePos,n=qi(e);if(!n)break;t.internalCodecId=n.name;const s=n.name.toLowerCase();if("video"===t.info.type){e.skip(24),t.info.width=qo(e),t.info.height=qo(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":ki.includes(s)?(t.info.codec="prores",t.info.proresFormat=s):null===i?We._warn("Unknown encrypted video codec due to missing frma box."):We._warn(`Unsupported video codec (sample entry type '${n.name}').`)}else{e.skip(8);const a=qo(e);e.skip(6);let o=qo(e),l=qo(e);e.skip(4);let c=jo(e)/65536,u=null;0===i&&a>0&&(1===a?(e.skip(4),l=8*jo(e),e.skip(8)):2===a&&(e.skip(4),c=Zo(e),o=jo(e),e.skip(4),l=jo(e),u=jo(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=Si;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(yi.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":(We._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":(We._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":(We._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":(We._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":(We._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(We._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=l+7>>3,i=Boolean(1&u),r=Boolean(2&u),n=4&u?-1:0;l>0&&l<=64&&(i?32===l&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):n&1<<e-1?1===e?t.info.codec="pcm-s8":2===e?t.info.codec=r?"pcm-s16be":"pcm-s16":3===e?t.info.codec=r?"pcm-s24be":"pcm-s24":4===e&&(t.info.codec=r?"pcm-s32be":"pcm-s32"):1===e&&(t.info.codec="pcm-u8")),null===t.info.codec&&We._warn("Unsupported PCM format.")}else null===d?We._warn("Unknown encrypted audio codec due to missing frma box."):We._warn(`Unsupported audio codec (sample entry type '${n.name}').`)}e.filePos=r+n.totalSize}}break;case"frma":{const t=this.currentTrack;if(!t)break;const i=el(e,4).toLowerCase();t.frmaCodecString=i}break;case"schm":{const t=this.currentTrack;if(!t)break;e.skip(4);const i=el(e,4);"cenc"===i||"cens"===i||"cbcs"===i?t.encryptionInfo={scheme:i,defaultKid:null,defaultIsProtected:null,defaultPerSampleIvSize:null,defaultConstantIv:null,defaultCryptByteBlock:null,defaultSkipByteBlock:null}:We._warn(`Unsupported encryption scheme '${i}'.`)}break;case"tenc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=zo(e);e.skip(3),e.skip(1);const r=zo(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!==zo(e),t.encryptionInfo.defaultPerSampleIvSize=zo(e),t.encryptionInfo.defaultKid=K(Lo(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=zo(e),r=new Uint8Array(16);r.set(Lo(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(I(t.info),0===ke.contentSize)break;t.info.codecDescription=Lo(e,ke.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(I(t.info),0===ke.contentSize)break;t.info.codecDescription=Lo(e,ke.contentSize)}break;case"vpcC":{const i=this.currentTrack;if(!i)break;I("video"===(null==(t=i.info)?void 0:t.type)),e.skip(4);const r=zo(e),n=zo(e),s=zo(e),a=s>>4,o=s>>1&7,l=1&s,c=zo(e),u=zo(e),d=zo(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;I("video"===(null==(i=t.info)?void 0:i.type)),e.skip(1);const o=zo(e),l=o>>5,c=31&o,u=zo(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=Lo(e,ke.contentSize-4),b=Nt(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;I("video"===(null==(o=t.info)?void 0:o.type));const i=el(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=qo(e),n=qo(e),s=qo(e);let a;"nclx"===i&&(a=Boolean(128&zo(e))),t.info.colorSpace={primaries:N[r],transfer:L[n],matrix:U[s],fullRange:a}}break;case"pasp":{const t=this.currentTrack;if(!t)break;I("video"===(null==(l=t.info)?void 0:l.type));const i=jo(e),r=jo(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);I(3===zo(e)),Vi(e),e.skip(2);const i=zo(e),r=0!==(64&i),n=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=zo(e);e.skip(t)}n&&e.skip(2);I(4===zo(e));const s=Vi(e),a=e.filePos,o=zo(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":We._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-a){I(5===zo(e));const i=Vi(e);if(t.info.codecDescription=Lo(e,i),"aac"===t.info.codec){const e=Ge(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;I("audio"===(null==(u=t.info)?void 0:u.type)),t.info.pcmLittleEndian=!!(255&qo(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;I("audio"===(null==(d=t.info)?void 0:d.type)),e.skip(4);const i=zo(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=zo(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;I("audio"===(null==(m=t.info)?void 0:m.type)),e.skip(1);const i=zo(e),r=qo(e),n=jo(e),s=Ho(e),a=zo(e);let o;o=0!==a?Lo(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;I("audio"===(null==(p=t.info)?void 0:p.type)),e.skip(4);const i=127,r=128,n=e.filePos;for(;e.filePos<be;){const n=zo(e),s=Wo(e);if((n&i)===qt.STREAMINFO){e.skip(10);const i=jo(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=Lo(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;I("audio"===(null==(g=t.info)?void 0:g.type));const i=Lo(e,3),r=new Ke(i),n=r.readBits(2);r.skipBits(8);const s=r.readBits(3),a=r.readBits(1);n<3&&(t.info.sampleRate=Je[n]),t.info.numberOfChannels=Vt[s]+a}break;case"dec3":{const t=this.currentTrack;if(!t)break;I("audio"===(null==(k=t.info)?void 0:k.type));const i=(e=>{if(e.length<2)return null;const t=new Ke(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}})(Lo(e,ke.contentSize));if(!i){We._warn("Invalid dec3 box contents, ignoring.");break}const r=Gt(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=Qt(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;I("audio"===(null==(y=t.info)?void 0:y.type));const i=(e=>{if(e.length<20)return null;const t=F(e),i=t.getUint32(0);if(0===i)return null;const r=new Ke(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=ci(o):a<ei.length&&(l=ei[a]+s),{sampleRate:i,maxBitrate:t.getUint32(4),avgBitrate:t.getUint32(8),pcmSampleDepth:e[12],sampleCount:ni[n],channelLayout:o,numberOfChannels:l}})(Lo(e,Math.min(ke.contentSize,20)));if(!i){We._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=jo(e);let r=0,n=0;for(let s=0;s<i;s++){const i=jo(e),s=jo(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=jo(e);let r=0;for(let n=0;n<i;n++){const i=jo(e),n=Xo(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=jo(e),r=jo(e);if(0===i)for(let n=0;n<r;n++){const i=jo(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=zo(e),r=jo(e),n=Lo(e,Math.ceil(r*i/8)),s=new Ke(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=jo(e);for(let r=0;r<i;r++){const i=jo(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=jo(e);for(let n=0;n<i;n++){const i=jo(e)-1,r=jo(e),n=jo(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=jo(e);for(let r=0;r<i;r++){const i=jo(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=jo(e);for(let r=0;r<i;r++){const i=Go(e);t.sampleTable.chunkOffsets.push(i)}}break;case"mvex":this.isFragmented=!0,this.readContiguousBoxes(e.slice(ye,ke.contentSize));break;case"mehd":{const t=zo(e);e.skip(3);const i=1===t?Go(e):jo(e);this.movieDurationInTimescale=i}break;case"trex":{e.skip(4);const t=jo(e),i=jo(e),r=jo(e),n=jo(e),s=jo(e);this.fragmentTrackDefaults.push({trackId:t,defaultSampleDescriptionIndex:i,defaultSampleDuration:r,defaultSampleSize:n,defaultSampleFlags:s})}break;case"tfra":{const t=zo(e);e.skip(3);const i=jo(e),r=this.tracks.find(e=>e.id===i);if(!r)break;const n=jo(e),s=(12&n)>>2,a=3&n,o=[zo,qo,Wo,jo],l=o[(48&n)>>4],c=o[s],u=o[a],d=jo(e);for(let h=0;h<d;h++){const i=1===t?Go(e):jo(e),n=1===t?Go(e):jo(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:ge,moofSize:ke.totalSize,implicitBaseDataOffset:ge,trackData:new Map,psshBoxes:[]},this.readContiguousBoxes(e.slice(ye,ke.contentSize)),this.lastReadFragment=this.currentFragment,this.currentFragment=null;break;case"traf":if(I(this.currentFragment),this.readContiguousBoxes(e.slice(ye,ke.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[C(e.presentationTimestamps).sampleIndex];e.startTimestamp=t.presentationTimestamp,e.endTimestamp=i.presentationTimestamp+i.duration;const{currentFragmentState:r}=this.currentTrack;I(r),null!==r.startTimestamp&&(dr(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==(b=this.input._formatOptions.isobmff)?void 0:b._suppressPsshParsing)break;const t=zi(Lo(e,ke.contentSize));this.currentFragment?this.currentFragment.psshBoxes.push(t):this.currentTrack||this.psshBoxes.push(t)}break;case"tfhd":{I(this.currentFragment),e.skip(1);const t=Wo(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=jo(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!=(T=null==d?void 0:d.defaultSampleDescriptionIndex)?T:null,defaultSampleDuration:null!=(v=null==d?void 0:d.defaultSampleDuration)?v:null,defaultSampleSize:null!=(S=null==d?void 0:d.defaultSampleSize)?S:null,defaultSampleFlags:null!=(w=null==d?void 0:d.defaultSampleFlags)?w:null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=Go(e):l&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=jo(e)),n&&(u.currentFragmentState.defaultSampleDuration=jo(e)),s&&(u.currentFragmentState.defaultSampleSize=jo(e)),a&&(u.currentFragmentState.defaultSampleFlags=jo(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;I(t.currentFragmentState);const i=zo(e);e.skip(3);const r=0===i?jo(e):Go(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;I(this.currentFragment),I(t.currentFragmentState);const i=zo(e),r=Wo(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=jo(e);let d=null;n&&(d=Xo(e));let h,f=null;s&&(f=jo(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=jo(e):(I(null!==t.currentFragmentState.defaultSampleDuration),r=t.currentFragmentState.defaultSampleDuration),o?n=jo(e):(I(null!==t.currentFragmentState.defaultSampleSize),n=t.currentFragmentState.defaultSampleSize),l?s=jo(e):(I(null!==t.currentFragmentState.defaultSampleFlags),s=t.currentFragmentState.defaultSampleFlags),0===m&&null!==f&&(s=f);let u=0;c&&(u=0===i?jo(e):Xo(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&Wo(e)){const i=el(e,4),r=jo(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const i=zo(e),r=jo(e);let n=null;0===i&&r>0&&(n=Lo(e,r));const s=mr(t);s.defaultSampleInfoSize=i,s.sampleSizes=n,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=zo(e);if(1&Wo(e)){const i=el(e,4),r=jo(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=jo(e);if(0===r)break;r>1&&We._warn("Multiple saio entries are not supported; using the first offset only.");let n=0===i?jo(e):Number(Go(e));this.currentFragment&&(n+=this.currentFragment.moofOffset);mr(t).offset=n}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;I(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=Wo(e),n=Boolean(2&r),s=jo(e),a=t.encryptionInfo.defaultPerSampleIvSize;I(null!==a);for(let o=0;o<Math.min(s,i.samples.length);o++){const r=new Uint8Array(16);a>0?r.set(Lo(e,a),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(n){const t=qo(e);s=[];for(let i=0;i<t;i++){const t=qo(e),i=jo(e);s.push({clearLen:t,protectedLen:i})}}i.samples[o].encryption={iv:r,subsamples:s}}}break;case"udta":{const t=this.iterateContiguousBoxes(e.slice(ye,ke.contentSize));for(const{boxInfo:e,slice:i}of t){if("meta"!==e.name&&!this.currentTrack){const t=i.filePos;null!=(P=this.metadataTags).raw||(P.raw={}),"\xa9"===e.name[0]?null!=(B=this.metadataTags.raw)[E=e.name]||(B[E]=ji(i)):null!=(_=this.metadataTags.raw)[R=e.name]||(_[R]=Lo(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=A.decode(Lo(i,e.contentSize)):null!=(D=this.metadataTags).title||(D.title=ji(i));break;case"\xa9des":this.currentTrack||null!=(M=this.metadataTags).description||(M.description=ji(i));break;case"\xa9ART":this.currentTrack||null!=(O=this.metadataTags).artist||(O.artist=ji(i));break;case"\xa9alb":this.currentTrack||null!=(z=this.metadataTags).album||(z.album=ji(i));break;case"albr":this.currentTrack||null!=(q=this.metadataTags).albumArtist||(q.albumArtist=ji(i));break;case"\xa9gen":this.currentTrack||null!=(H=this.metadataTags).genre||(H.genre=ji(i));break;case"\xa9day":if(!this.currentTrack){const e=new Date(ji(i));Number.isNaN(e.getTime())||null!=(V=this.metadataTags).date||(V.date=e)}break;case"\xa9cmt":this.currentTrack||null!=(j=this.metadataTags).comment||(j.comment=ji(i));break;case"\xa9lyr":this.currentTrack||null!=(X=this.metadataTags).lyrics||(X.lyrics=ji(i))}}}break;case"meta":{if(this.currentTrack)break;const t=0!==jo(e);this.currentMetadataKeys=new Map,t?this.readContiguousBoxes(e.slice(ye,ke.contentSize)):this.readContiguousBoxes(e.slice(ye+4,ke.contentSize-4)),this.currentMetadataKeys=null}break;case"keys":{if(!this.currentMetadataKeys)break;e.skip(4);const t=jo(e);for(let i=0;i<t;i++){const t=jo(e);e.skip(4);const r=A.decode(Lo(e,t-8));this.currentMetadataKeys.set(i+1,r)}}break;case"ilst":{if(!this.currentMetadataKeys)break;const t=this.iterateContiguousBoxes(e.slice(ye,ke.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=Ki(i);switch(null!=($=this.metadataTags).raw||($.raw={}),null!=(G=this.metadataTags.raw)[t]||(G[t]=n),t){case"\xa9nam":case"titl":case"com.apple.quicktime.title":case"title":"string"===typeof n&&(null!=(Q=this.metadataTags).title||(Q.title=n));break;case"\xa9des":case"desc":case"dscp":case"com.apple.quicktime.description":case"description":"string"===typeof n&&(null!=(Y=this.metadataTags).description||(Y.description=n));break;case"\xa9ART":case"com.apple.quicktime.artist":case"artist":"string"===typeof n&&(null!=(J=this.metadataTags).artist||(J.artist=n));break;case"\xa9alb":case"albm":case"com.apple.quicktime.album":case"album":"string"===typeof n&&(null!=(Z=this.metadataTags).album||(Z.album=n));break;case"aART":case"album_artist":"string"===typeof n&&(null!=(ee=this.metadataTags).albumArtist||(ee.albumArtist=n));break;case"\xa9cmt":case"com.apple.quicktime.comment":case"comment":"string"===typeof n&&(null!=(te=this.metadataTags).comment||(te.comment=n));break;case"\xa9gen":case"gnre":case"com.apple.quicktime.genre":case"genre":"string"===typeof n&&(null!=(ie=this.metadataTags).genre||(ie.genre=n));break;case"\xa9lyr":case"lyrics":"string"===typeof n&&(null!=(re=this.metadataTags).lyrics||(re.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!=(ne=this.metadataTags).date||(ne.date=e)}break;case"covr":case"com.apple.quicktime.artwork":n instanceof He?(null!=(se=this.metadataTags).images||(se.images=[]),this.metadataTags.images.push({data:n.data,kind:"coverFront",mimeType:n.mimeType})):n instanceof Uint8Array&&(null!=(oe=this.metadataTags).images||(oe.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!=(ce=this.metadataTags).trackNumber||(ce.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(ue=this.metadataTags).tracksTotal||(ue.tracksTotal=i))}break;case"trkn":if(n instanceof Uint8Array&&n.length>=6){const e=F(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(de=this.metadataTags).trackNumber||(de.trackNumber=t)),i>0&&(null!=(he=this.metadataTags).tracksTotal||(he.tracksTotal=i))}break;case"disc":case"disk":if(n instanceof Uint8Array&&n.length>=6){const e=F(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(me=this.metadataTags).discNumber||(me.discNumber=t)),i>0&&(null!=(pe=this.metadataTags).discsTotal||(pe.discsTotal=i))}}}}}return e.filePos=be,!0}}class nr{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;I(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 oe(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=or(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return fr(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=G(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=lr(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return fr(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=ee(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=ur(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 I(-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=cr(i,e);if(!r)return null;let n;if(t.metadataOnly)n=Oi;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(Ce(t)&&(t=yield t),!t)return null;if(n=Lo(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=yield pr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);e<i.length&&(t=i[e])}null!=t||(t=gr(this.internalTrack.encryptionInfo)),t&&(n=yield kr(this.internalTrack,t,n,null))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,a=r.duration/this.internalTrack.timescale,o=new Li(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(I(n),i.metadataOnly)s=Oi;else{let t=this.internalTrack.demuxer.reader.requestSlice(n.byteOffset,n.byteSize);if(Ce(t)&&(t=yield t),!t)return null;if(s=Lo(t,n.byteSize),this.internalTrack.encryptionInfo){const t=null!=(r=n.encryption)?r:gr(this.internalTrack.encryptionInfo);t&&(s=yield kr(this.internalTrack,t,s,e))}}const a=(n.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,o=n.duration/this.internalTrack.timescale,l=new Li(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=G(this.internalTrack.fragmentLookupTable,i,e=>e.timestamp),f=-1!==h?this.internalTrack.fragmentLookupTable[h]:null,m=G(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(Ce(e)&&(e=yield e),!e)break;const i=k,s=qi(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];I(!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 sr extends nr{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&&Ot(e.data)}}else{const e=yield this.getFirstPacket({}),t=e&&Nt(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const t=yield this.getFirstPacket({}),i=t&&Dt(t.data);i&&(this.internalTrack.info.vp9CodecInfo=f(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&&St(e.data)}else{const e=yield this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&ht(e.data)}if(!q(this.internalTrack.info.colorSpace)){const e=Ti(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:bi(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 ar extends nr{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&&ai(e.data)}return{codec:vi(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 or=(e,t)=>{if(e.presentationTimestamps){const i=G(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=G(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)}},lr=(e,t)=>{var i;if(!e.keySampleIndices)return or(e,t);if(e.presentationTimestamps){const i=G(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.keySampleIndices,i,e=>e))return i}return-1}{const r=or(e,t),n=G(e.keySampleIndices,r,e=>e);return null!=(i=e.keySampleIndices[n])?i:-1}},cr=(e,t)=>{const i=G(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=G(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=G(e.sampleToChunk,t,e=>e.startSampleIndex),c=e.sampleToChunk[l];I(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(I(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.keySampleIndices,t,e=>e)}},ur=(e,t)=>{var i;if(!e.keySampleIndices)return t+1;const r=G(e.keySampleIndices,t,e=>e);return null!=(i=e.keySampleIndices[r+1])?i:-1},dr=(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},hr=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},fr=e=>0===e.sampleSizes.length,mr=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}},pr=(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{I(i.sampleSizes);for(let e=0;e<i.sampleCount;e++)r+=i.sampleSizes[e]}let n=e.requestSlice(i.offset,r);if(Ce(n)&&(n=yield n),!n)throw new Error("Failed to read auxiliary encryption info.");const s=t.defaultPerSampleIvSize;I(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(Lo(n,s),0):o.set(t.defaultConstantIv,0);let l=null;if(r>s){const e=qo(n);l=[];for(let t=0;t<e;t++){const e=qo(n),t=jo(n);l.push({clearLen:e,protectedLen:t})}}a.push({iv:o,subsamples:l})}return i.resolved=a,a}),gr=e=>e.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,kr=(e,t,i,r)=>y(null,null,function*(){var n;I(e.encryptionInfo);const s=e.encryptionInfo;I(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++)Ui(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&&j.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=>{I(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?yr(o,s,t,i):br(o,s,t,i)}),yr=(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);I(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=Tr(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}),br=(e,t,i,r)=>{const n=new ir;n.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,a=t.defaultSkipByteBlock;if(I(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=Tr(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},Tr=(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 vr,Sr;(Sr=vr||(vr={}))[Sr.EBML=440786851]="EBML",Sr[Sr.EBMLVersion=17030]="EBMLVersion",Sr[Sr.EBMLReadVersion=17143]="EBMLReadVersion",Sr[Sr.EBMLMaxIDLength=17138]="EBMLMaxIDLength",Sr[Sr.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",Sr[Sr.DocType=17026]="DocType",Sr[Sr.DocTypeVersion=17031]="DocTypeVersion",Sr[Sr.DocTypeReadVersion=17029]="DocTypeReadVersion",Sr[Sr.Void=236]="Void",Sr[Sr.Segment=408125543]="Segment",Sr[Sr.SeekHead=290298740]="SeekHead",Sr[Sr.Seek=19899]="Seek",Sr[Sr.SeekID=21419]="SeekID",Sr[Sr.SeekPosition=21420]="SeekPosition",Sr[Sr.Duration=17545]="Duration",Sr[Sr.Info=357149030]="Info",Sr[Sr.TimestampScale=2807729]="TimestampScale",Sr[Sr.MuxingApp=19840]="MuxingApp",Sr[Sr.WritingApp=22337]="WritingApp",Sr[Sr.Tracks=374648427]="Tracks",Sr[Sr.TrackEntry=174]="TrackEntry",Sr[Sr.TrackNumber=215]="TrackNumber",Sr[Sr.TrackUID=29637]="TrackUID",Sr[Sr.TrackType=131]="TrackType",Sr[Sr.FlagEnabled=185]="FlagEnabled",Sr[Sr.FlagDefault=136]="FlagDefault",Sr[Sr.FlagForced=21930]="FlagForced",Sr[Sr.FlagOriginal=21934]="FlagOriginal",Sr[Sr.FlagHearingImpaired=21931]="FlagHearingImpaired",Sr[Sr.FlagVisualImpaired=21932]="FlagVisualImpaired",Sr[Sr.FlagCommentary=21935]="FlagCommentary",Sr[Sr.FlagLacing=156]="FlagLacing",Sr[Sr.Name=21358]="Name",Sr[Sr.Language=2274716]="Language",Sr[Sr.LanguageBCP47=2274717]="LanguageBCP47",Sr[Sr.CodecID=134]="CodecID",Sr[Sr.CodecPrivate=25506]="CodecPrivate",Sr[Sr.CodecDelay=22186]="CodecDelay",Sr[Sr.SeekPreRoll=22203]="SeekPreRoll",Sr[Sr.DefaultDuration=2352003]="DefaultDuration",Sr[Sr.Video=224]="Video",Sr[Sr.PixelWidth=176]="PixelWidth",Sr[Sr.PixelHeight=186]="PixelHeight",Sr[Sr.DisplayWidth=21680]="DisplayWidth",Sr[Sr.DisplayHeight=21690]="DisplayHeight",Sr[Sr.DisplayUnit=21682]="DisplayUnit",Sr[Sr.AlphaMode=21440]="AlphaMode",Sr[Sr.Audio=225]="Audio",Sr[Sr.SamplingFrequency=181]="SamplingFrequency",Sr[Sr.Channels=159]="Channels",Sr[Sr.BitDepth=25188]="BitDepth",Sr[Sr.SimpleBlock=163]="SimpleBlock",Sr[Sr.BlockGroup=160]="BlockGroup",Sr[Sr.Block=161]="Block",Sr[Sr.BlockAdditions=30113]="BlockAdditions",Sr[Sr.BlockMore=166]="BlockMore",Sr[Sr.BlockAdditional=165]="BlockAdditional",Sr[Sr.BlockAddID=238]="BlockAddID",Sr[Sr.BlockDuration=155]="BlockDuration",Sr[Sr.ReferenceBlock=251]="ReferenceBlock",Sr[Sr.Cluster=524531317]="Cluster",Sr[Sr.Timestamp=231]="Timestamp",Sr[Sr.Cues=475249515]="Cues",Sr[Sr.CuePoint=187]="CuePoint",Sr[Sr.CueTime=179]="CueTime",Sr[Sr.CueTrackPositions=183]="CueTrackPositions",Sr[Sr.CueTrack=247]="CueTrack",Sr[Sr.CueClusterPosition=241]="CueClusterPosition",Sr[Sr.Colour=21936]="Colour",Sr[Sr.MatrixCoefficients=21937]="MatrixCoefficients",Sr[Sr.TransferCharacteristics=21946]="TransferCharacteristics",Sr[Sr.Primaries=21947]="Primaries",Sr[Sr.Range=21945]="Range",Sr[Sr.Projection=30320]="Projection",Sr[Sr.ProjectionType=30321]="ProjectionType",Sr[Sr.ProjectionPoseRoll=30325]="ProjectionPoseRoll",Sr[Sr.Attachments=423732329]="Attachments",Sr[Sr.AttachedFile=24999]="AttachedFile",Sr[Sr.FileDescription=18046]="FileDescription",Sr[Sr.FileName=18030]="FileName",Sr[Sr.FileMediaType=18016]="FileMediaType",Sr[Sr.FileData=18012]="FileData",Sr[Sr.FileUID=18094]="FileUID",Sr[Sr.Chapters=272869232]="Chapters",Sr[Sr.Tags=307544935]="Tags",Sr[Sr.Tag=29555]="Tag",Sr[Sr.Targets=25536]="Targets",Sr[Sr.TargetTypeValue=26826]="TargetTypeValue",Sr[Sr.TargetType=25546]="TargetType",Sr[Sr.TagTrackUID=25541]="TagTrackUID",Sr[Sr.TagEditionUID=25545]="TagEditionUID",Sr[Sr.TagChapterUID=25540]="TagChapterUID",Sr[Sr.TagAttachmentUID=25542]="TagAttachmentUID",Sr[Sr.SimpleTag=26568]="SimpleTag",Sr[Sr.TagName=17827]="TagName",Sr[Sr.TagLanguage=17530]="TagLanguage",Sr[Sr.TagString=17543]="TagString",Sr[Sr.TagBinary=17541]="TagBinary",Sr[Sr.ContentEncodings=28032]="ContentEncodings",Sr[Sr.ContentEncoding=25152]="ContentEncoding",Sr[Sr.ContentEncodingOrder=20529]="ContentEncodingOrder",Sr[Sr.ContentEncodingScope=20530]="ContentEncodingScope",Sr[Sr.ContentCompression=20532]="ContentCompression",Sr[Sr.ContentCompAlgo=16980]="ContentCompAlgo",Sr[Sr.ContentCompSettings=16981]="ContentCompSettings",Sr[Sr.ContentEncryption=20533]="ContentEncryption";const wr=[vr.EBML,vr.Segment],Pr=[vr.SeekHead,vr.Info,vr.Cluster,vr.Tracks,vr.Cues,vr.Attachments,vr.Chapters,vr.Tags],Ir=[...wr,...Pr],xr=16,Cr=e=>{if(e.remainingLength<1)return null;const t=zo(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},Br=e=>{if(e.remainingLength<1)return null;const t=zo(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+=zo(e);return n},Er=(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+=zo(e);return i},_r=e=>{const t=Cr(e);if(null===t)return null;if(e.remainingLength<t)return null;return Er(e,t)},Rr=e=>{if(e.remainingLength<1)return null;if(255===zo(e))return;e.skip(-1);const t=Br(e);return null===t?null:72057594037927940!==t?t:void 0},Fr=e=>{I(e.remainingLength>=2);const t=_r(e);if(null===t)return null;const i=Rr(e);return null===i?null:{id:t,size:i}},Ar=(e,t)=>{const i=Lo(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return String.fromCharCode(...i.subarray(0,r))},Dr=(e,t)=>{const i=Lo(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return A.decode(i.subarray(0,r))},Mr=(e,t)=>{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?Jo(e):Zo(e)},Nr=(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,xr);if(Ce(t)&&(t=yield t),!t)break;const i=Fr(t);if(!i)break;if(n.has(i.id))return{pos:s,found:!0};Jr(i.size),s=t.filePos+i.size}return{pos:null!==r&&r>s?r:s,found:!1}}),Or=(e,t,i,r)=>y(null,null,function*(){const n=u(2,16),s=new Set(i);let a=t;for(;a<r;){let t=e.requestSliceRange(a,0,Math.min(n,r-a));if(Ce(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=_r(t);if(null!==e&&s.has(e))return a;a++}}return null}),Lr="V_MPEG4/ISO/AVC",zr="V_MPEGH/ISO/HEVC",Ur="V_VP8",qr="V_VP9",Wr="V_AV1",Hr="V_PRORES",Vr="A_AAC",jr="A_MPEG/L3",Kr="A_OPUS",Xr="A_VORBIS",$r="A_FLAC",Gr="A_AC3",Qr="A_EAC3",Yr="A_DTS";function Jr(e){if(void 0===e)throw new Error("Undefined element size is used in a place where it is not supported.")}var Zr,en,tn,rn,nn,sn;(en=Zr||(Zr={}))[en.None=0]="None",en[en.Xiph=1]="Xiph",en[en.FixedSize=2]="FixedSize",en[en.Ebml=3]="Ebml",(rn=tn||(tn={}))[rn.Block=1]="Block",rn[rn.Private=2]="Private",rn[rn.Next=4]="Next",(sn=nn||(nn={}))[sn.Zlib=0]="Zlib",sn[sn.Bzlib=1]="Bzlib",sn[sn.lzo1x=2]="lzo1x",sn[sn.HeaderStripping=3]="HeaderStripping";const an=[{id:vr.SeekHead,flag:"seekHeadSeen"},{id:vr.Info,flag:"infoSeen"},{id:vr.Tracks,flag:"tracksSeen"},{id:vr.Cues,flag:"cuesSeen"}],on=10*u(2,20);class ln extends Ni{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,xr);if(Ce(t)&&(t=yield t),!t)break;const i=Fr(t);if(!i)break;const r=i.id;let n=i.size;const s=t.filePos;if(r===vr.EBML){Jr(n);let e=this.reader.requestSlice(s,n);if(Ce(e)&&(e=yield e),!e)break;this.readContiguousElements(e)}else if(r===vr.Segment){if(yield this.readSegment(s,n),void 0===n)break;if(null===this.reader.fileSize)break}else if(r===vr.Cluster){if(null===this.reader.fileSize)break;if(void 0===n){n=(yield Nr(this.reader,s,Ir,this.reader.fileSize)).pos-s}const e=C(this.segments);e&&(e.elementEndPos=s+n)}Jr(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,xr);if(Ce(e)&&(e=yield e),!e)break;const t=r,n=Fr(e);if(!n||!Pr.includes(n.id)&&n.id!==vr.Void){const e=yield Or(this.reader,t,Pr,Math.min(null!=(i=this.currentSegment.elementEndPos)?i:1/0,t+on));if(e){r=e;continue}break}const{id:s,size:a}=n,o=e.filePos,l=an.findIndex(e=>e.id===s);if(-1!==l){const e=an[l].flag;this.currentSegment[e]=!0,Jr(a);let t=this.reader.requestSlice(o,a);Ce(t)&&(t=yield t),t&&this.readContiguousElements(t)}else if(s===vr.Tags||s===vr.Attachments){s===vr.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,Jr(a);let e=this.reader.requestSlice(o,a);Ce(e)&&(e=yield e),e&&this.readContiguousElements(e)}else if(s===vr.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=an.find(e=>e.id===t.id);if(!i)continue;if(this.currentSegment[i.flag])continue;let r=this.reader.requestSliceRange(e+t.segmentPosition,2,xr);if(Ce(r)&&(r=yield r),!r)continue;const n=Fr(r);if(!n)continue;const{id:s,size:a}=n;if(s!==i.id)continue;Jr(a),this.currentSegment[i.flag]=!0;let o=this.reader.requestSlice(r.filePos,a);Ce(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,xr);Ce(r)&&(r=yield r),I(r);const n=e,s=Fr(r);I(s);I(s.id===vr.Cluster);let a=s.size;const o=r.filePos;if(void 0===a){a=(yield Nr(this.reader,o,Ir,t.elementEndPos)).pos-o}let l=this.reader.requestSlice(o,a);Ce(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,Ir);c.elementEndPos=e}for(const[,e]of c.trackData){const t=e.track;I(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!==Zr.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===Zr.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[C(e.presentationTimestamps).blockIndex];e.startTimestamp=r.timestamp,e.endTimestamp=s.timestamp+s.duration;const a=G(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===Zr.None)continue;n.decoded||(n.data=this.decodeBlockData(t,n.data),n.decoded=!0);const s=No.tempFromBytes(n.data),a=[],o=zo(s)+1;switch(n.lacing){case Zr.Xiph:{let e=0;for(let t=0;t<o-1;t++){let t=0;for(;s.bufferPos<s.length;){const i=zo(s);if(t+=i,i<255){a.push(t),e+=t;break}}}a.push(s.length-(s.bufferPos+e))}break;case Zr.FixedSize:{const e=s.length-1,t=Math.floor(e/o);for(let i=0;i<o;i++)a.push(t)}break;case Zr.Ebml:{const e=Br(s);I(null!==e);let t=e;a.push(t);let i=t;for(let r=1;r<o-1;r++){const e=s.bufferPos,r=Br(s);I(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:I(!1)}I(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=Lo(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:Zr.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!==vr.Tags||e.tagsSeen){if(t.id!==vr.Attachments||e.attachmentsSeen)continue}else;let i=this.reader.requestSliceRange(e.dataStartPos+t.segmentPosition,2,xr);if(Ce(i)&&(i=yield i),!i)continue;const r=Fr(i);if(!r||r.id!==t.id)continue;const{size:n}=r;Jr(n),I(!this.currentSegment),this.currentSegment=e;let s=this.reader.requestSlice(i.filePos,n);Ce(s)&&(s=yield s),s&&this.readContiguousElements(s),this.currentSegment=null,t.id===vr.Tags?e.tagsSeen=!0:t.id===vr.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,m,p,g,k,y,b,T,v,S,w,P,C,B,E,_,R,F,D,M,O,z,q,H,V,j,K,X,$,G,Q,Y,J,Z,ee,te,ie,re,ne,se,oe,le;const ce=Fr(e);if(!ce)return!1;if(t&&t.includes(ce.id))return!1;const{id:ue,size:de}=ce,he=e.filePos;switch(Jr(de),ue){case vr.DocType:this.isWebM="webm"===Ar(e,de);break;case vr.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(he,de)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case vr.SeekID:{const t=null==(i=this.currentSegment)?void 0:i.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=Er(e,de)}break;case vr.SeekPosition:{const t=null==(r=this.currentSegment)?void 0:r.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=Er(e,de)}break;case vr.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=Er(e,de),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case vr.Duration:if(!this.currentSegment)break;this.currentSegment.duration=Mr(e,de);break;case vr.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:f(h({},je),{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(he,de)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>{var t;return"decompress"!==(null==(t=e.data)?void 0:t.type)||e.scope!==tn.Block||e.data.algorithm!==nn.HeaderStripping})&&(We._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===Lr)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===zr)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===Ur)this.currentTrack.info.codec="vp8";else if(t===qr)this.currentTrack.info.codec="vp9";else if(t===Wr)this.currentTrack.info.codec="av1";else if(t===Hr){const e=this.currentTrack.codecPrivate?A.decode(this.currentTrack.codecPrivate):"";ki.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new un(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===Vr?(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===jr?this.currentTrack.info.codec="mp3":t===Kr?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=Si):t===Xr?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===$r?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Gr?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Qr?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Yr?(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 dn(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case vr.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=Er(e,de);break;case vr.TrackType:{if(!this.currentTrack)break;const t=Er(e,de);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({},W),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 vr.FlagEnabled:if(!this.currentTrack)break;Er(e,de)||(this.currentTrack=null);break;case vr.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!Er(e,de);break;case vr.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!Er(e,de);break;case vr.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!Er(e,de);break;case vr.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!Er(e,de);break;case vr.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!Er(e,de);break;case vr.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!Er(e,de);break;case vr.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=Ar(e,de);break;case vr.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=Lo(e,de);break;case vr.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=Er(e,de);break;case vr.Name:if(!this.currentTrack)break;this.currentTrack.name=Dr(e,de);break;case vr.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=Ar(e,de),fe(this.currentTrack.languageCode)||(this.currentTrack.languageCode=ae);break;case vr.LanguageBCP47:{if(!this.currentTrack)break;const t=Ar(e,de).split("-")[0];this.currentTrack.languageCode=t||ae,this.currentTrack.hasLanguageBcp47=!0}break;case vr.Video:if("video"!==(null==(s=null==(n=this.currentTrack)?void 0:n.info)?void 0:s.type))break;this.readContiguousElements(e.slice(he,de));break;case vr.PixelWidth:if("video"!==(null==(o=null==(a=this.currentTrack)?void 0:a.info)?void 0:o.type))break;this.currentTrack.info.width=Er(e,de);break;case vr.PixelHeight:if("video"!==(null==(c=null==(l=this.currentTrack)?void 0:l.info)?void 0:c.type))break;this.currentTrack.info.height=Er(e,de);break;case vr.DisplayWidth:if("video"!==(null==(d=null==(u=this.currentTrack)?void 0:u.info)?void 0:d.type))break;this.currentTrack.info.displayWidth=Er(e,de);break;case vr.DisplayHeight:if("video"!==(null==(p=null==(m=this.currentTrack)?void 0:m.info)?void 0:p.type))break;this.currentTrack.info.displayHeight=Er(e,de);break;case vr.DisplayUnit:if("video"!==(null==(k=null==(g=this.currentTrack)?void 0:g.info)?void 0:k.type))break;this.currentTrack.info.displayUnit=Er(e,de);break;case vr.AlphaMode:if("video"!==(null==(b=null==(y=this.currentTrack)?void 0:y.info)?void 0:b.type))break;this.currentTrack.info.alphaMode=1===Er(e,de);break;case vr.Colour:if("video"!==(null==(v=null==(T=this.currentTrack)?void 0:T.info)?void 0:v.type))break;this.readContiguousElements(e.slice(he,de));break;case vr.MatrixCoefficients:{if("video"!==(null==(w=null==(S=this.currentTrack)?void 0:S.info)?void 0:w.type))break;const t=Er(e,de),i=U[t];this.currentTrack.info.colorSpace.matrix=i}break;case vr.Range:{if("video"!==(null==(C=null==(P=this.currentTrack)?void 0:P.info)?void 0:C.type))break;const t=Er(e,de);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case vr.TransferCharacteristics:{if("video"!==(null==(E=null==(B=this.currentTrack)?void 0:B.info)?void 0:E.type))break;const t=Er(e,de),i=L[t];this.currentTrack.info.colorSpace.transfer=i}break;case vr.Primaries:{if("video"!==(null==(R=null==(_=this.currentTrack)?void 0:_.info)?void 0:R.type))break;const t=Er(e,de),i=N[t];this.currentTrack.info.colorSpace.primaries=i}break;case vr.Projection:if("video"!==(null==(D=null==(F=this.currentTrack)?void 0:F.info)?void 0:D.type))break;this.readContiguousElements(e.slice(he,de));break;case vr.ProjectionPoseRoll:{if("video"!==(null==(O=null==(M=this.currentTrack)?void 0:M.info)?void 0:O.type))break;const t=-Mr(e,de);try{this.currentTrack.info.rotation=x(t)}catch(me){}}break;case vr.Audio:if("audio"!==(null==(q=null==(z=this.currentTrack)?void 0:z.info)?void 0:q.type))break;this.readContiguousElements(e.slice(he,de));break;case vr.SamplingFrequency:if("audio"!==(null==(V=null==(H=this.currentTrack)?void 0:H.info)?void 0:V.type))break;this.currentTrack.info.sampleRate=Mr(e,de);break;case vr.Channels:if("audio"!==(null==(K=null==(j=this.currentTrack)?void 0:j.info)?void 0:K.type))break;this.currentTrack.info.numberOfChannels=Er(e,de);break;case vr.BitDepth:if("audio"!==(null==($=null==(X=this.currentTrack)?void 0:X.info)?void 0:$.type))break;this.currentTrack.info.bitDepth=Er(e,de);break;case vr.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(he,de)),this.currentCueTime=null;break;case vr.CueTime:this.currentCueTime=Er(e,de);break;case vr.CueTrackPositions:{if(null===this.currentCueTime)break;I(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(he,de)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case vr.CueTrack:{const t=null==(G=this.currentSegment)?void 0:G.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=Er(e,de)}break;case vr.CueClusterPosition:{const t=null==(Q=this.currentSegment)?void 0:Q.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;I(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+Er(e,de)}break;case vr.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=Er(e,de);break;case vr.SimpleBlock:{if(!this.currentCluster)break;const t=Br(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Ho(e),n=zo(e),s=n>>1&3;let a=!!(128&n);"audio"===(null==(Y=i.track.info)?void 0:Y.type)&&i.track.info.codec&&(a=!0);const o=Lo(e,de-(e.filePos-he)),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 vr.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(he,de)),this.currentBlock=null;break;case vr.Block:{if(!this.currentCluster)break;const t=Br(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Ho(e),n=zo(e)>>1&3,s=Lo(e,de-(e.filePos-he)),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 vr.BlockAdditions:this.readContiguousElements(e.slice(he,de));break;case vr.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(he,de)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case vr.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=Lo(e,de);break;case vr.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=Er(e,de);break;case vr.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=Er(e,de);break;case vr.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case vr.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(he,de));break;case vr.Targets:this.readContiguousElements(e.slice(he,de));break;case vr.TargetTypeValue:50!==Er(e,de)&&(this.currentTagTargetIsMovie=!1);break;case vr.TagTrackUID:case vr.TagEditionUID:case vr.TagChapterUID:case vr.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case vr.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(he,de));break;case vr.TagName:this.currentSimpleTagName=Dr(e,de);break;case vr.TagString:{if(!this.currentSimpleTagName)break;const t=Dr(e,de);this.processTagValue(this.currentSimpleTagName,t)}break;case vr.TagBinary:{if(!this.currentSimpleTagName)break;const t=Lo(e,de);this.processTagValue(this.currentSimpleTagName,t)}break;case vr.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(he,de));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(null!=t.raw||(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new Ve(this.currentAttachedFile.fileData,null!=(J=this.currentAttachedFile.fileMediaType)?J:void 0,null!=(Z=this.currentAttachedFile.fileName)?Z:void 0,null!=(ee=this.currentAttachedFile.fileDescription)?ee:void 0)),(null==(te=this.currentAttachedFile.fileMediaType)?void 0:te.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!=(ie=this.currentAttachedFile.fileName)?ie:void 0,description:null!=(re=this.currentAttachedFile.fileDescription)?re:void 0})}this.currentAttachedFile=null}break;case vr.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(zo(e));return i})(e,de);break;case vr.FileName:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=Dr(e,de);break;case vr.FileMediaType:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=Ar(e,de);break;case vr.FileData:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=Lo(e,de);break;case vr.FileDescription:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=Dr(e,de);break;case vr.ContentEncodings:if(!this.currentTrack)break;this.readContiguousElements(e.slice(he,de)),this.currentTrack.decodingInstructions.sort((e,t)=>t.order-e.order);break;case vr.ContentEncoding:this.currentDecodingInstruction={order:0,scope:tn.Block,data:null},this.readContiguousElements(e.slice(he,de)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case vr.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=Er(e,de);break;case vr.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=Er(e,de);break;case vr.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:nn.Zlib,settings:null},this.readContiguousElements(e.slice(he,de));break;case vr.ContentCompAlgo:if("decompress"!==(null==(se=null==(ne=this.currentDecodingInstruction)?void 0:ne.data)?void 0:se.type))break;this.currentDecodingInstruction.data.algorithm=Er(e,de);break;case vr.ContentCompSettings:if("decompress"!==(null==(le=null==(oe=this.currentDecodingInstruction)?void 0:oe.data)?void 0:le.type))break;this.currentDecodingInstruction.data.settings=Lo(e,de);break;case vr.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=he+de,!0}decodeBlockData(e,t){I(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(I(r.data),"decompress"===r.data.type)if(r.data.algorithm===nn.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){I(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 cn{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 oe(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=G(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=ee(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 I(-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(I(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);F(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?Oi: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?Oi:s.mainAdditional,c.alphaByteLength=s.mainAdditional.byteLength);const u=new Li(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=G(this.internalTrack.cuePoints,i,e=>e.time),p=-1!==m?this.internalTrack.cuePoints[m]:null,g=G(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,xr);if(Ce(e)&&(e=yield e),!e)break;const i=b,s=Fr(e);if(!s||!Pr.includes(s.id)&&s.id!==vr.Void){const e=yield Or(c.reader,i,Pr,Math.min(null!=(o=u.elementEndPos)?o:1/0,i+on));if(e){b=e;continue}break}const a=s.id;let l=s.size;const m=e.filePos;if(a===vr.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){I(a!==vr.Cluster);l=(yield Nr(c.reader,m,Ir,u.elementEndPos)).pos-m}const p=m+l;if(null===u.elementEndPos){let e=c.reader.requestSliceRange(p,2,xr);if(Ce(e)&&(e=yield e),!e)break;if(_r(e)===vr.Segment){u.elementEndPos=p;break}}b=p}if(p&&(!h||h.elementStartPos<p.clusterPosition)){const e=this.internalTrack.cuePoints[m-1];I(!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 un extends cn{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?ht(s.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&s?St(s.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&s?Dt(s.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&s?Nt(s.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&s?Ot(s.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!q(this.internalTrack.info.colorSpace)){const n=Ti(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:bi(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 dn extends cn{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&&ai(e.data)}return{codec:vi({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 hn=(e,t,i,r=null)=>y(null,null,function*(){const n=u(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(Ce(a)&&(a=yield a),!a||a.length<4)break;for(;a.remainingLength>=4;){const t=a.filePos,i=jo(a),n=null!==e.fileSize?e.fileSize-s:null,o=Ri(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&Mi(o.header.channel)===Mi(r.channel)))return{header:o.header,startPos:s};a.filePos=t+o.bytesAdvanced,s=a.filePos}}return null});class fn extends Ni{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 V,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 mn(this)]}))()})}advanceReader(){return y(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,ol);if(Ce(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=dl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=yield hn(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=_i(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(Ce(r)&&(r=yield r),r){const n=jo(r);if(n===Bi||n===Ei){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(Ce(t)&&(t=yield t),t){const e=Lo(t,12),i=F(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&Ai.FrameCount?i.getUint32(4,!1):null,fileSize:r&Ai.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,ol);if(Ce(i)&&(i=yield i),!i)break;const r=dl(i);if(!r)break;t=!0;let n=this.reader.requestSlice(i.filePos,r.size);if(Ce(n)&&(n=yield n),!n)break;hl(n,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=al){let e=this.reader.requestSlice(this.reader.fileSize-al,al);Ce(e)&&(e=yield e),I(e);"TAG"===el(e,3)&&cl(e,this.metadataTags)}return this.metadataTags}finally{e()}})}}class mn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return I(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(I(null!==e.firstFrameHeader),I(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 ae}getCodec(){return"mp3"}getInternalCodecId(){return null}getNumberOfChannels(){return I(this.demuxer.firstFrameHeader),Mi(this.demuxer.firstFrameHeader.channel)}getSampleRate(){return I(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}getDisposition(){return h({},je)}getDecoderConfig(){return y(this,null,function*(){return I(this.demuxer.firstFrameHeader),{codec:"mp3",numberOfChannels:Mi(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=Oi;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Ce(e)&&(e=yield e),!e)return null;r=Lo(e,i.dataSize)}return new Li(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=$(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=G(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 pn=1399285583,gn=new Uint32Array(256);for(let El=0;El<256;El++){let e=El<<24;for(let t=0;t<8;t++)e=2147483648&e?e<<1^79764919:e<<1;gn[El]=e>>>0&4294967295}const kn=e=>{const t=F(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^gn[r>>>24^t])>>>0}return t.setUint32(22,i,!0),r},yn=(e,t,i)=>{let r=0,n=null;if(e.length>0)if("vorbis"===t.codec){I(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:Lt[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:n}},bn=27,Tn=282,vn=e=>{const t=e.filePos;if(Ko(e)!==pn)return null;e.skip(1);const i=zo(e),r=Yo(e),n=Ko(e),s=Ko(e),a=Ko(e),o=zo(e),l=new Uint8Array(o);for(let d=0;d<o;d++)l[d]=zo(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}},Sn=(e,t)=>{for(;e.filePos<t-3;){const t=Ko(e),i=79;if((255&t)===i||(t>>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===pn)return!0;e.skip(1)}}return!1};class wn extends Ni{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,bn,Tn);if(Ce(t)&&(t=yield t),!t)break;const i=vn(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 Pn(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=F(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:zt(n.data).modeBlockflags},Ht(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=F(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=Si,t.codecInfo.opusInfo={preSkip:n.preSkip},Ht(r.data.subarray(8),this.metadataTags)})}readPacket(e,t){return y(this,null,function*(){I(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);Ce(t)&&(t=yield t),I(t);const o=Lo(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,bn,Tn);if(Ce(t)&&(t=yield t),!t)return null;const i=vn(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,bn,Tn);if(Ce(i)&&(i=yield i),!i)return null;const r=vn(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 Pn{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new V,this.internalSampleRate="opus"===e.codecInfo.codec?Si:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return I(-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 I(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 ae}getDisposition(){return f(h({},je),{primary:!1})}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(I(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:n}=yn(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new Li(i.metadataOnly?Oi: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*(){I(this.bitstream.lastMetadataPacket);const t=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(I(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=oe(e*this.internalSampleRate);if(0===n)return this.getFirstPacket(t);if(n<0)return null;I(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-bn);let r=this.demuxer.reader.requestSlice(i,e-i);Ce(r)&&(r=yield r),I(r);if(!Sn(r,e)){o=t+bn;continue e}let s=this.demuxer.reader.requestSliceRange(r.filePos,bn,Tn);Ce(s)&&(s=yield s),I(s);const c=vn(s);I(c);let u=!1;if(c.serialNumber===this.bitstream.serialNumber)u=!0;else{let e=this.demuxer.reader.requestSlice(c.headerStartPos,c.totalSize);Ce(e)&&(e=yield e),I(e);const t=Lo(e,c.totalSize);u=kn(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,bn,Tn);Ce(t)&&(t=yield t),I(t);const i=vn(t);I(i),u=i,u.serialNumber===this.bitstream.serialNumber&&d.push(u)}I(-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:Oi,endPage:p,endSegmentIndex:g};if(yield this.demuxer.findNextPacketStart(e)){const e=xn(d,u,m);I(e);const t=In(d,e.page,e.segmentIndex);t&&(u=t.page,m=t.segmentIndex)}else for(;;){const e=xn(d,u,m);if(!e)break;const t=In(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;){I(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);I(s);let a=this.encodedPacketToMetadata.get(s);if(I(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),I(s),a=this.encodedPacketToMetadata.get(s),I(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=oe(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=G(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);I(e),this.sequentialScanCache.length>0&&I(C(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 In=(e,t,i)=>{let r=t,n=i;e:for(;;){for(n--;n>=0;n--){if(r.lacingValues[n]<255){n++;break e}}I(-1===n);if(!(1&r.headerType)){n=0;break}const t=Z(e,e=>e.headerStartPos<r.headerStartPos);if(!t)return null;r=t,n=r.lacingValues.length}if(I(-1!==n),n===r.lacingValues.length){const t=e[e.indexOf(r)+1];I(t),r=t,n=0}return{page:r,segmentIndex:n}},xn=(e,t,i)=>{if(i>0)return{page:t,segmentIndex:i-1};const r=Z(e,e=>e.headerStartPos<t.headerStartPos);return r?{page:r,segmentIndex:r.lacingValues.length-1}:null};var Cn,Bn;(Bn=Cn||(Cn={}))[Bn.PCM=1]="PCM",Bn[Bn.IEEE_FLOAT=3]="IEEE_FLOAT",Bn[Bn.ALAW=6]="ALAW",Bn[Bn.MULAW=7]="MULAW",Bn[Bn.EXTENSIBLE=65534]="EXTENSIBLE";class En extends Ni{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);Ce(i)&&(i=yield i),I(i);const r=el(i,4),n="RIFX"!==r,s="RF64"===r,a=Vo(i,n);let o=s?this.reader.fileSize:Math.min(a+8,null!=(e=this.reader.fileSize)?e:1/0);if("WAVE"!==el(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(Ce(e)&&(e=yield e),!e)break;const i=el(e,4),r=Vo(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(Ce(e)&&(e=yield e),!e)break;const i=$o(e,n);c=$o(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 Rn(this))}))()})}parseFmtChunk(e,t,i){return y(this,null,function*(){let r=this.reader.requestSlice(e,t);if(Ce(r)&&(r=yield r),!r)return;let n=Uo(r,i);const s=Uo(r,i),a=Vo(r,i);r.skip(4);const o=Uo(r,i);let l;if(l=14===t?8:Uo(r,i),t>=18&&357!==n){const e=Uo(r,i),s=t-18;if(Math.min(s,e)>=22&&n===Cn.EXTENSIBLE){r.skip(6);const e=Lo(r,16);n=e[0]|e[1]<<8}}if(n!==Cn.MULAW&&n!==Cn.ALAW||(l=8),n!==Cn.PCM&&n!==Cn.IEEE_FLOAT&&n!==Cn.ALAW&&n!==Cn.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${n}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(n===Cn.PCM&&![8,16,24,32].includes(l))throw new Error(`Unsupported WAVE PCM bit depth (${l}). Only 8, 16, 24, and 32 bits are supported.`);if(n===Cn.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(Ce(m)&&(m=yield m),!m)return;const p=el(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=el(m,4),t=Vo(m,i),p=Lo(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(Ce(i)&&(i=yield i),!i)return;const r=dl(i);if(r){const n=t-ol;if(r.size=Math.min(r.size,n),r.size>0){const t=i.slice(e+ol,r.size);hl(t,r,this.metadataTags)}}})}getCodec(){if(I(this.audioInfo),this.audioInfo.format===Cn.MULAW)return"ulaw";if(this.audioInfo.format===Cn.ALAW)return"alaw";if(this.audioInfo.format===Cn.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===Cn.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}I(!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 _n=2048;class Rn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return I(this.demuxer.audioInfo),this.demuxer.audioInfo.format}getDecoderConfig(){return y(this,null,function*(){const e=this.demuxer.getCodec();return e?(I(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null})}getNumberOfChannels(){return I(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return I(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return I(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 I(-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 ae}getDisposition(){return h({},je)}getPacketAtIndex(e,t){return y(this,null,function*(){I(e>=0),I(this.demuxer.audioInfo);const i=e*_n*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(_n*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(Ce(e)&&(e=yield e),!e)return null}let n;if(t.metadataOnly)n=Oi;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);Ce(e)&&(e=yield e),I(e),n=Lo(e,r)}const s=e*_n/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 Li(n,"key",s,a,e,r)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getPacket(e,t){return y(this,null,function*(){I(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/_n,(this.demuxer.dataSize-1)/(_n*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;I(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){I(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/_n);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Fn=e=>{const t=e.filePos,i=Lo(e,9),r=new Ke(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}},An=1024;class Dn extends Ni{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new V,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();I(this.firstFrameHeader),this.trackBackings=[new Mn(this)]}))()})}advanceReader(){return y(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,ol);if(Ce(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=dl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(Ce(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=Fn(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=Xe[t.samplingFrequencyIndex];I(void 0!==i);const r=An/i,n={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(n),this.nextTimestampInSamples+=An,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,ol);if(Ce(t)&&(t=yield t),!t)break;const i=dl(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(Ce(r)&&(r=yield r),!r)break;hl(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}})}}class Mn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/An}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 ae}getCodec(){return"aac"}getInternalCodecId(){return I(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){I(this.demuxer.firstFrameHeader);const e=$e[this.demuxer.firstFrameHeader.channelConfiguration];return I(void 0!==e),e}getSampleRate(){I(this.demuxer.firstFrameHeader);const e=Xe[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return I(void 0!==e),e}getDisposition(){return h({},je)}getDecoderConfig(){return y(this,null,function*(){return I(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}})}getPacketAtIndex(e,t){return y(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=Oi;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Ce(e)&&(e=yield e),!e)return null;r=Lo(e,i.dataSize)}return new Li(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=$(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=G(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 Nn extends Ni{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 V,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(),I(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,ol);if(Ce(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const i=dl(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);Ce(r)&&(r=yield r),I(r),hl(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(Ce(i)&&(i=yield i),t+=4,null===i)throw new Error(`Metadata block at position ${t} is too small! Corrupted file.`);I(i);const r=zo(i),n=Wo(i),s=0!==(128&r);switch(127&r){case qt.STREAMINFO:{let e=this.reader.requestSlice(t,n);if(Ce(e)&&(e=yield e),I(e),null===e)throw new Error(`StreamInfo block at position ${t} is too small! Corrupted file.`);const i=Lo(e,34),r=new Ke(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 On(this);break}case qt.VORBIS_COMMENT:{let e=this.reader.requestSlice(t,n);Ce(e)&&(e=yield e),I(e),Ht(Lo(e,n),this.metadataTags);break}case qt.PICTURE:{let i=this.reader.requestSlice(t,n);Ce(i)&&(i=yield i),I(i);const r=jo(i),s=jo(i),a=A.decode(Lo(i,s)),o=jo(i),l=A.decode(Lo(i,o));i.skip(16);const c=jo(i),u=Lo(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}){I(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===zo(s)){const t=s.filePos;if(zo(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=Lo(e,4),n=new Ke(r);if(32764!==n.readBits(15))return null;if(null===this.blockingBit){I(t);const e=n.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){I(!t);if(1!==n.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");I(!t);if(0!==n.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*u(2,e):6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?u(2,e):null)(n.readBits(4));if(!s)return null;I(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 Ke(Lo(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],n=t-1,s=new Ke(Lo(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?qo(e)+1:"uncommon-u8"===t?zo(e)+1:"number"===typeof t?t:(te(t),void I(!1)))(e,s),c=((e,t)=>"uncommon-u16"===t?qo(e):"uncommon-u16-10"===t?10*qo(e):"uncommon-u8"===t?zo(e):"number"===typeof t?t:null)(e,a);if(null===c)return null;if(c!==this.audioInfo.sampleRate)return null;const d=e.filePos-i,h=zo(e);e.skip(-d),e.skip(-1);const f=(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})(Lo(e,d));return h!==f?null:{num:o,blockSize:l,sampleRate:c}}advanceReader(){return y(this,null,function*(){yield this.readMetadata(),I(null!==this.lastLoadedPos),I(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 On{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return I(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return I(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return ae}getTimeResolution(){return I(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 I(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({},je)}getDecoderConfig(){return y(this,null,function*(){return I(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(I(this.demuxer.audioInfo),e<0)return null;const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=G(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=Oi;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(Ce(e)&&(e=yield e),!e)return null;r=Lo(e,i.byteSize)}I(this.demuxer.audioInfo);const n=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new Li(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 Ln=9e4,zn=u(2,33),Un=188,qn="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.",Wn=new Set([133,134,162]),Hn=new Set;class Vn extends Ni{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);Ce(e)&&(e=yield e),I(e);const t=Lo(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=Un;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 Ke(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=Kn(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 Yn(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=ht(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];I(t);const i=gt(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:N[i.colourPrimaries],transfer:L[i.transferCharacteristics],matrix:U[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=St(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===it.SPS_NUT).nalUnits[0];I(t);const i=vt(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:N[i.colourPrimaries],transfer:L[i.transferCharacteristics],matrix:U[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:bi({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 ${e.pid}`);if("aac"===e.info.codec){const t=No.tempFromBytes(r.suppliedPacket.data),i=Fn(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=$e[i.channelConfiguration],e.info.sampleRate=Xe[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=jo(No.tempFromBytes(r.suppliedPacket.data)),i=Ri(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=Mi(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=jt(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=Vt[t.acmod]+t.lfeon,e.info.sampleRate=Je[t.fscod]}else if("eac3"===e.info.codec){const t=$t(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=Gt(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Qt(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=si(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:vi({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 Ke(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&&Wn.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:Hn.has(t)||(We._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),Hn.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 Ke(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 $n(a)):this.trackBackingEntries.push(new Gn(a)))}))()})}getTrackBackings(){return y(this,null,function*(){return yield this.readMetadata(),this.trackBackingEntries})}getMetadataTags(){return y(this,null,function*(){return{}})}getMimeType(){return y(this,null,function*(){yield this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${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!==$(this.sectionEndPositions,r,e=>e)){c=!1;break}}if(c){const e=G(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(Ce(t)&&(t=yield t),!t)return null;if(71!==zo(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=qo(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:zo(t)>>4&3}})}readPacket(e){return y(this,null,function*(){let t=this.reader.requestSlice(e,Un);if(Ce(t)&&(t=yield t),!t)return null;const i=Lo(t,Un);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>=zn-t?-zn:zn}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e<t?e+i:e}}const jn=(e,t,i)=>{if(t.payload.byteLength<3)return null;const r=new Ke(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(qn);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:a,randomAccessIndicator:t.randomAccessIndicator}},Kn=(e,t,i)=>{I(null!==t.endPos);const r=jn(e,t,i);if(!r)return null;const n=new Ke(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;I(Number.isInteger(l));const c=t.payload.subarray(l,s>0?6+s:t.payload.byteLength);return f(h({},r),{data:c})};class Xn{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++,I(r instanceof Xn),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 ae}getDisposition(){return f(h({},je),{primary:!1})}getTimeResolution(){return Ln}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 Li(i.metadataOnly?Oi:e.data,r,e.pts/Ln,Math.max(t/Ln,0),e.sequenceNumber,e.data.byteLength)}getFirstPacket(e){return y(this,null,function*(){const t=this.elementaryStream.firstSection;I(t);const i=Kn(this.elementaryStream.demuxer,t,!0);I(i);const r=new Yn(this.elementaryStream,i),n=new Jn(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);I(s);const a=Kn(n,s,!0);I(a);const o=new Yn(this.elementaryStream,a);i=new Jn(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=oe(e*Ln),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=jn(u,e,!1);if(t&&null!==t.pts)return{pesPacketHeader:t,section:e}}r+=u.packetStride}return null}),p=this.elementaryStream.firstSection;I(p);const g=jn(u,p,!0);if(I(g),c<g.pts)return null;let k;const b=this.elementaryStream.referencePesPackets,T=G(b,c,e=>e.pts),v=-1!==T?b[T]:null;if(v&&c-v.pts<45e3)k=v.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=ue(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=ue(e*h,u.packetStride)+g.sectionStartPos}const S=yield m(k,null!=(r=d.fileSize)?r:1/0,!1);let w=null!=(n=null==S?void 0:S.pesPacketHeader)?n:null;w||(w=g);const P=this.getReorderSize(),x=(e,t)=>y(this,null,function*(){var r,n;const s=yield u.readSection(e,!0);I(s);const a=Kn(u,s,!0);I(a);const o=new Yn(this.elementaryStream,a),l=new Jn(this,o);for(;;){if((null!=(n=null==(r=C(l.presentationOrderPackets))?void 0:r.pts)?n:-1/0)>=c)break;if(!(yield l.readNextPacket()))break}const d=ee(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();I(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=jn(u,t,!1);if(e&&null!==e.pts){if(e.pts>c)break e;w=e,Qn(this.elementaryStream,w);break}}}e+=u.packetStride}}e:for(let e=0;e<P+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=jn(u,t,!1);if(e&&null!==e.pts){w=e;break}}}e-=u.packetStride}}return x(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{I(y);const t=Kn(u,y,!0);I(t);const i=new Yn(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>P))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=jn(u,t,!1);if(e&&null!==e.pts){k=e,y=t,Qn(this.elementaryStream,k);break}}}e+=u.packetStride}}if(r){let e=r;if(0===T)e:for(let r=0;r<P;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=jn(u,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=u.packetStride}}const t=yield x(e.sectionStartPos,e=>e.pts<=c&&1===e.randomAccessIndicator);return I(t),t}if(n)return null;t=e,e=Math.max(ue(e-g.sectionStartPos-h,u.packetStride)+g.sectionStartPos,g.sectionStartPos)}}})}}class $n extends Xn{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 I(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Gn extends Xn{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 I(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const Qn=(e,t)=>{const i=e.referencePesPackets,r=G(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 Yn{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 I(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=C(this.pesPackets).sectionEndPos;for(I(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=Kn(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;I(!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(Ce(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,S;if("avc"===e)T=ot(b),v=T===et.NON_IDR_SLICE||T===et.SLICE_DPA||T===et.IDR,S=T===et.SEI||T===et.SPS||T===et.PPS||T===et.AUD;else{T=Tt(b);if(((1&b)<<5|l[g+1]>>3)>0){u+=m;continue}v=T<=it.RASL_R||T>=it.BLA_W_LP&&T<=21,S=T>=it.VPS_NUT&&T<=37||T===it.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let w=!1;if(v){let t;if("avc"===e){const e=l.subarray(k,k+y),i=B(new Ke(e));t=!s||i<=a,a=i}else t=l[k]>>7===1;t&&(s?w=!0:s=!0)}else S&&s&&(w=!0);if(w){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);Ce(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(Ce(t)&&(t=yield t),t<9)return;const i=this.readBytes(9),n=Fn(No.tempFromBytes(i));if(n){this.seekTo(e);let t=this.ensureBuffered(n.frameLength);return Ce(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(Ce(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=Kt[3*a+n];I(void 0!==o),this.seekTo(e),t=this.ensureBuffered(o),Ce(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(Ce(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=Xt[a];this.seekTo(e),t=this.ensureBuffered(n),Ce(t)&&(t=yield t);const l=256*o,c=Math.round(l*Ln/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(Ce(a)&&(a=yield a),a<18)return;const o=this.readBytes(18),l=oi(o);let c=l?null:li(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);Ce(i)&&(i=yield i),c=null!=(e=li(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(Ce(i)&&(i=yield i),i<t)break;this.seekTo(n+e);const r=li(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),Ce(a)&&(a=yield a);const h=Math.round(d*Ln/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(Ce(t)&&(t=yield t),t<4)return;const i=this.readBytes(4),n=F(i).getUint32(0),a=Ri(n,null);if(a.header){this.seekTo(e);let t=this.ensureBuffered(a.header.totalSize);Ce(t)&&(t=yield t);const i=a.header.audioSamplesInFrame*Ln/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)I(null!==this.nextPts),r=this.nextPts;else{if(null===i.pts)throw new Error(qn);r=i.pts,Qn(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"===Ut(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 Jn{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(),I(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(I(-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(I(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 Zn="application/vnd.apple.mpegurl",es="#EXT-X-STREAM-INF:",ts="#EXT-X-I-FRAME-STREAM-INF:",is="#EXT-X-MEDIA:",rs="#EXTINF:",ns="#EXT-X-MAP:",ss="#EXT-X-KEY:",as="#EXT-X-MEDIA-SEQUENCE:",os="#EXT-X-BYTERANGE:",ls="#EXT-X-PROGRAM-DATE-TIME:",cs="#EXT-X-TARGETDURATION:",us="#EXT-X-PLAYLIST-TYPE:",ds=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class hs{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 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}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=De(e,e=>"video"===e.getType())+1;e.push(new ps(this,t,i))}else if("audio"===t.type){const i=De(e,e=>"audio"===e.getType())+1;e.push(new gs(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=De(e,e=>"video"===e.getType())+1;e.push(new ps(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=De(e,e=>"audio"===e.getType())+1;e.push(new gs(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 ms{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(),I(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*(){I(e.sequenceNumber>=0),I(this.segmentedInput.firstSegment);const r=yield this.segmentedInput.getMediaOffset(t,i.input),n=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:ce(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(),I(this.firstInputTrack),I(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 ps extends ms{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 gs extends ms{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())})}}Re();const ks=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class ys extends ze{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 Do;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,ks),e=this._getFileSize(),I(void 0!==e)),e}))()})}getSize(){return y(this,null,function*(){if(this._disposed)throw new Do;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 Ds(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 bs(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class bs{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;I(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 Ts extends ys{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 ys||e instanceof bs))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof ys?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return Ce(t)?t.then(i):i(t)}}const vs=(e,t)=>e.path===t.path;class Ss extends Ts{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 ys?e.ref():e;return this._root=t,this._rootRequest=null,t};Ce(e)?this._rootRequest=e.then(t):(t(e),I(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 ws="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class Ps extends ys{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&&(!Fe(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 As({maxCacheSize:null!=(i=t.maxCacheSize)?i:8*u(2,20),maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),null==ws||ws.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:Fs.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*(){I(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!Te()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),null==ws||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}=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 Is=.5*u(2,20),xs=(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 We._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(u(2,e-2),16)},Cs=new Set;class Bs extends Ts{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&&(!Fe(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 Bs(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:xs,this._requestInit=h({},t.requestInit);let a=null;if(null==(r=t.requestInit)?void 0:r.headers){const e=h({},ge(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=_s(a);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new As({maxCacheSize:null!=(n=t.maxCacheSize)?n:64*u(2,20),maxWorkerCount:null!=(s=t.parallelism)?s:2,runWorker:this._runWorker.bind(this),prefetchProfile:Fs.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:se(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 Ce(a)?a.then(o):o(a)}_runWorker(e){return y(this,null,function*(){for(var t;;){const r=new AbortController,n=yield ke(null!=(t=this._options.fetchFn)?t:fetch,this._url,pe(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")||Cs.has(e.origin)||(We._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.`),Cs.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){We._error("Error while reading response stream. Attempting to resume.",i),yield Le(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;We._error("Error while reading response stream. 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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);Ce(e)?e.then(e=>{e?(I(e.offset===o.start),o.resolve(e.bytes)):o.resolve(null)},e=>o.reject(e)):(I(null===e),o.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const Es=/^bytes=(\d+)-(\d*)$/,_s=e=>{const t=Es.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 Rs extends ys{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&&(!Fe(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*u(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=G(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:F(s),offset:e};this._currentIndex>n&&this._throwDueToCacheMiss();const{promise:a,resolve:o,reject:l}=Y();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:F(e.bytes),offset:e.start}),this._pendingSlices.splice(n,1),n--))}for(this._cache.push({start:i,end:r,bytes:t,view:F(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 Do);this._pendingSlices.length=0,this._cache.length=0,null==(e=this._reader)||e.cancel()}}const Fs={fileSystem:(e,t)=>{const i=u(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=u(2,16);e=Math.max(0,Math.floor((e-r)/r)*r);for(const n of i){const i=8*u(2,20),r=Math.max((n.startPos+n.targetPos)/2,n.targetPos-i);if(Ee(e,t,r,n.targetPos)){const e=n.targetPos-n.startPos,r=Math.ceil((e+1)/i)*i,s=u(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+Is)}}};class As{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;I(!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);I(a<=e&&t<=o);let l=null;const c=G(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=G(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(I(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:F(h),offset:e}),0===p.length)return I(l),l;const{promise:g,resolve:k,reject:y}=Y(),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=G(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)}}):(I(h),l=g.then(t=>t&&{bytes:t,view:F(t),offset:e})),l}checkHoleAgainstWorker(e,t,i){const r=u(2,17);if(Ee(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;I(null!==t),I(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){I(!e.running),I(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;I(!e.aborted);const n=e.currentPos,s=n+t.length;this.insertIntoCache({start:n,end:s,bytes:t,view:F(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||Ee(n,s,t.currentPos,t.targetPos)&&(this.workers.splice(a,1),null==(r=(i=this.options).onIdleWorkerRemoved)||r.call(i,t),a--)}}supplyFileSize(e){I(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);I(-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=G(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=F(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=F(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 Do);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 Do);this.workers.length=0,this.cache.length=0,this.queuedReads.length=0,this.disposed=!0}}class Ds extends ys{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:se(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 Ce(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 Ms=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},Ns=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 Os=/^0[xX][0-9a-fA-F]+$/,Ls=/^data:.*;base64,/i;class zs extends fs{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){var e;return null!=(e=this.currentUpdateSegmentsPromise)?e:this.currentUpdateSegmentsPromise=(()=>y(this,null,function*(){try{const e=this.getRemainingWaitTimeMs();e>0&&(yield Le(e)),this.lastSegmentUpdateTime=performance.now(),yield this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}}))()}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}updateSegments(){return y(this,null,function*(){var e,t,i,r,n,s,a,o;let l=this.nextLines;if(this.nextLines=null,!l){const e={stack:[],error:void 0,hasError:!1};try{const t=Ms(e,yield this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),i=new Mo(t.source),r=yield i.requestEntireFile();I(r),l=tl(r,r.length,{ignore:ds}),t.source instanceof Ts&&(this.rootPath=t.source.rootPath)}catch(R){e.error=R,e.hasError=!0}finally{Ns(e)}}const c=!1!==(null==(e=this.input._formatOptions.hls)?void 0:e.offsetTimestampsByDateTime);let d=!1,m=0,p=null,g=null,k=null,y=0,b=null,T=null,v=null,S=null,w=null,P=null,x=!1,B=null!=(t=C(this.segments))?t:null;const E=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${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 '${e}'.`);return{length:i,offset:r}},_=e=>{y=e,B&&(I(null!==B.sequenceNumber),B.sequenceNumber<e&&(m=B.timestamp+B.duration,b=B.firstSegment,T=B.initSegment,w=B.lastProgramDateTimeSeconds,p=null!==B.unixEpochTimestamp?B.unixEpochTimestamp+B.duration:null,B=null))};for(let I=0;I<l.length;I++){const e=l[I];if(d){if(!e.startsWith("#")){if(!B){if(null===g)throw new Error("Invalid M3U8 file; a segment must be preceded by an #EXTINF tag.");let t=k;if(t&&"AES-128"===t.method&&!t.iv){const e=new Uint8Array(Xi),i=F(e);i.setUint32(8,Math.floor(y/u(2,32))),i.setUint32(12,y),t=f(h({},t),{iv:e})}const n={path:Ae(this.rootPath,e),offset:null!=(i=null==S?void 0:S.offset)?i:0,length:null!=(r=null==S?void 0:S.length)?r:null},s={timestamp:m,unixEpochTimestamp:p,firstSegment:b,sequenceNumber:y,location:n,duration:g,encryption:t,initSegment:T,lastProgramDateTimeSeconds:w};null!=b||(b=s),m+=g,null!==p&&(p+=g),this.segments.push(s)}g=null,null===S?v=null:S=null,_(y+1)}if(e.startsWith(rs)){if(B){x=!0;continue}x||(null===w&&y>0&&null!==P&&(m=y*P),x=!0);const t=e.slice(8),i=t.indexOf(","),r=-1===i?t:t.slice(0,i),n=Number(r);if(!Number.isFinite(n)||n<0)throw new Error(`Invalid #EXTINF tag duration '${r}'.`);g=n}else if(e.startsWith(ns)){const t=new hs(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=E(r)),a&&null===a.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!B){const e={path:Ae(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==k?void 0:k.method)&&!k.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");T={timestamp:m,unixEpochTimestamp:p,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:k,initSegment:null,lastProgramDateTimeSeconds:w}}g=null,null===S?v=null:S=null}else if(e.startsWith(ss)){const t=new hs(e.slice(11)),i=t.get("method");if("NONE"===i)k=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(!Os.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Xi);for(let t=0;t<Xi;t++){const r=-32+t;i[t]=parseInt(e.slice(r,r+2),16)}}const n=null!=(a=t.get("keyformat"))?a:"identity";if("identity"!==n)throw new Error("For AES-128 encryption, only the 'identity' KEYFORMAT is currently supported. If you think other formats should be supported, please raise an issue.");k={method:"AES-128",keyUri:Ae(this.rootPath,e),iv:i,keyFormat:n}}else{if("SAMPLE-AES"!==i&&"SAMPLE-AES-CTR"!==i)throw new Error(`Unsupported encryption method '${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: ${i} requires a URI attribute.`);if("identity"===(null!=(o=t.get("keyformat"))?o:"identity"))throw new Error("For SAMPLE-AES and SAMPLE-AES-CTR encryption, the 'identity' KEYFORMAT is not supported. If you think this format should be supported, please raise an issue.");let r=null;if(Ls.test(e)){const t=e.indexOf(","),i=_e(e.slice(t+1));if(i.length>=8&&112===i[4]&&115===i[5]&&115===i[6]&&104===i[7]){const e=F(i).getUint32(0);r=zi(i.subarray(8,Math.min(e,i.length)))}}k={method:i,psshBox:r}}}}else if(e.startsWith(as)){const t=e.slice(22),i=Number(t);if(!Number.isInteger(i)||i<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${t}'.`);_(i)}else if(e.startsWith(os)){const t=E(e.slice(17));if(null===t.offset){if(null===v)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");t.offset=v}S=t,v=t.offset+t.length}else if(e.startsWith(ls)){if(B)continue;const t=e.slice(25),i=Date.parse(t);if(!Number.isFinite(i))continue;const r=i/1e3;if(w===r)continue;if(null===w&&this.segments.length>0){const e=C(this.segments),t=r-(e.timestamp+e.duration);for(const i of this.segments)i.unixEpochTimestamp=i.timestamp+t,c&&(i.timestamp=i.unixEpochTimestamp)}w=r,p=r,c&&(m=r)}else if("#EXT-X-DISCONTINUITY"===e)b=null;else if(e.startsWith(cs)){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,P=i}else{if("#EXT-X-ENDLIST"===e){this.streamHasEnded=!0;break}if(e.startsWith(us)){"vod"===e.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==e)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");d=!0}}if(!d)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=G(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);I(-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 I(-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=f(h({},this.input._formatOptions),{isobmff:f(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=>Ui(e,i))||(t=[...t,i]),this.input._formatOptions.isobmff.resolveKeyId(f(h({},e),{psshBoxes:t}))})})}),o=new Fo({source:new Ss(r.location.path,e=>y(this,null,function*(){var t,i;I(e.isRoot);const n=f(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;I(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=u(2,16),a=new ir;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(Ce(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=Lo(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 Mo(t.source),()=>y(this,null,function*(){const t={stack:[],error:void 0,hasError:!1};try{const i=Ms(t,yield this.input._getSourceCached({path:e.keyUri,isRoot:!1},Ro),!1),r=new Mo(i.source),n=yield r.requestSlice(0,Xi);if(!n)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:Lo(n,Xi),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{Ns(t)}}),()=>{t.free()});s=new Rs(o).ref()}else I(!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 sa)),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=Me(this.inputCache,e=>e.age);I(-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 Us extends Ni{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*(){I(this.input._rootSource instanceof Ts);const e=yield this.input._reader.requestEntireFile();I(e);const t=tl(e,e.length,{ignore:ds}),{rootPath:i}=this.input._rootSource,r=[],n=[];for(let u=1;u<t.length;u++){const e=t[u];if(e.startsWith(es)){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=Ae(i,s),o=new hs(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(ts)){const t=new hs(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=Ae(i,n);r.push({fullPath:s,attributes:t,lineNumber:u,hasOnlyKeyPackets:!0})}else if(e.startsWith(is)){const t=new hs(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=Ae(i,s)),n.push({fullPath:r,attributes:t,lineNumber:u})}else if("#EXT-X-I-FRAMES-ONLY"===e);else if(e.startsWith(rs)){const e=new zs(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=>ui.includes(Ii(e))),g=h.some(e=>hi.includes(Ii(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=Ae(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});I(null!==a),h.push(a)}}if(null!==m&&!g){if(!a.includes(m))throw new Error(`Invalid M3U8 file; variant stream references audio group "${m}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===m&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=Ae(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});I(null!==a),h.push(a)}}h=[...new Set(h)];let k=null,b=null;const T=e.attributes.getAsNumber("bandwidth");I(null!==T);const v=e.attributes.getAsNumber("average-bandwidth"),S=e.attributes.get("name");for(const i of h){const d=Ii(i);if(null!==d)if(ui.includes(d)){if(null!==k)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");k=i;const a=e.attributes.get("video");if(null===a){const i=e.attributes.get("resolution");let r=null,n=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(r=Number(e[1]),n=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:ae,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:k,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:T,averageBitrate:v,name:S,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:Vs(i.attributes),autoselect:Vs(i.attributes)||js(i.attributes),languageCode:Ks(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(hi.includes(d)){if(null!==b)throw new Error("Unsupported M3U8 file; multiple audio codecs found in the CODECS attribute of a variant stream.");b=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:ae,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:b,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:T,averageBitrate:v,name:S,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:Vs(i.attributes),autoselect:Vs(i.attributes)||js(i.attributes),languageCode:Ks(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(c=i.fullPath)?c:e.fullPath,fullCodecString:b,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===ae&&(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 Ws(u)):this.trackBackings.push(new Hs(u));this.internalTracks=l}))()}getTrackBackings(){return y(this,null,function*(){return yield this.readMetadata(),I(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 zs(this,e,i,null),this.segmentedInputs.push(t),t}getMetadataTags(){return y(this,null,function*(){return{}})}getMimeType(){return y(this,null,function*(){return Zn})}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class qs{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 Ws){for(const r of i)if((yield r.getCodec())===this.getCodec()){t=r;break}}else{I(this instanceof Hs);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 f(h({},je),{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(){I(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 Ws extends qs{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return Ii(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 Hs extends qs{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return Ii(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 Vs=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}".`)},js=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}".`)},Ks=e=>{if(null===e)return ae;const t=e.split("-")[0];return t||ae};class Xs{constructor(){this._isIsobmff=!1}}class $s extends Xs{constructor(){super(...arguments),this._isIsobmff=!0}_getMajorBrand(e){return y(this,null,function*(){let t=e._reader.requestSlice(0,12);if(Ce(t)&&(t=yield t),!t)return null;t.skip(4);const i=el(t,4);return"ftyp"!==i&&"styp"!==i?null:el(t,4)})}_createDemuxer(e){return new rr(e)}}class Gs extends $s{_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(Ce(t)&&(t=yield t),!t)return!1;let r=jo(t),n=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(Ce(t)&&(t=yield t),!t)return!1;r=Go(t),n=16}if(r<n)return!1;const s=el(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 Qs extends $s{_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 Ys extends Xs{isSupportedEBMLOfDocType(e,t){return y(this,null,function*(){let i=e._reader.requestSlice(0,xr);if(Ce(i)&&(i=yield i),!i)return!1;const r=Cr(i);if(null===r)return!1;if(r<1||r>8)return!1;if(Er(i,r)!==vr.EBML)return!1;const n=Rr(i);if("number"!==typeof n)return!1;let s=e._reader.requestSlice(i.filePos,n);if(Ce(s)&&(s=yield s),!s)return!1;const a=i.filePos;for(;s.filePos<=a+n-2;){const e=Fr(s);if(!e)break;const{id:i,size:r}=e,n=s.filePos;if(void 0===r)return!1;switch(i){case vr.EBMLVersion:if(1!==Er(s,r))return!1;break;case vr.EBMLReadVersion:if(1!==Er(s,r))return!1;break;case vr.DocType:if(Ar(s,r)!==t)return!1;break;case vr.DocTypeVersion:if(Er(s,r)>4)return!1}s.filePos=n+r}return!0})}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new ln(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class Js extends Ys{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Zs extends Xs{_canReadInput(e){return y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,ol);if(Ce(i)&&(i=yield i),!i)break;const r=dl(i);if(!r)break;t=i.filePos+r.size}const i=yield hn(e._reader,t,t+4096);if(!i)return!1;const r=i.header,n=_i(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+n,4);if(Ce(s)&&(s=yield s),!s)return!1;const a=jo(s);if(a===Bi||a===Ei)return!0;t=i.startPos+i.header.totalSize;const o=yield hn(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 fn(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class ea extends Xs{_canReadInput(e){return y(this,null,function*(){let t=e._reader.requestSlice(0,12);if(Ce(t)&&(t=yield t),!t)return!1;const i=el(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===el(t,4)})}_createDemuxer(e){return new En(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class ta extends Xs{_canReadInput(e){return y(this,null,function*(){let t=e._reader.requestSlice(0,4);return Ce(t)&&(t=yield t),!!t&&"OggS"===el(t,4)})}_createDemuxer(e){return new wn(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class ia extends Xs{_canReadInput(e){return y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,ol);if(Ce(i)&&(i=yield i),!i)break;const r=dl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return Ce(i)&&(i=yield i),!!i&&"fLaC"===el(i,4)})}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new Nn(e)}}class ra extends Xs{_canReadInput(e){return y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,ol);if(Ce(i)&&(i=yield i),!i)break;const r=dl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(Ce(i)&&(i=yield i),!i)return!1;const r=Fn(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),Ce(i)&&(i=yield i),!i)return!1;const n=Fn(i);return!!n&&(r.objectType===n.objectType&&r.samplingFrequencyIndex===n.samplingFrequencyIndex&&r.channelConfiguration===n.channelConfiguration)})}_createDemuxer(e){return new Dn(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class na extends Xs{_canReadInput(e){return y(this,null,function*(){let t=e._reader.requestSlice(0,205);if(Ce(t)&&(t=yield t),!t)return!1;const i=Lo(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 Vn(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class sa extends Xs{_canReadInput(e){return y(this,null,function*(){let t=e._reader.requestSlice(0,7);if(Ce(t)&&(t=yield t),!t)return!1;if(!("#EXTM3U"===el(t,7)))return!1;if(!(e._rootSource instanceof Ts))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 Us(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Zn}}const aa=new Gs,oa=new Qs,la=new Ys,ca=new Js,ua=new Zs,da=new ea,ha=new ta,fa=new ra,ma=new ia,pa=new na,ga=new sa,ka=[ga,aa,oa,la,ca,da,ha,ma,ua,fa,pa],ya=[ga,aa,oa,ua,fa,pa];var ba=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});Re();let Ta=-1/0,va=-1/0,Sa=null;"undefined"!==typeof FinalizationRegistry&&(Sa=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-Ta>=1e3&&(We._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."),Ta=t),"undefined"!==typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(t-va>=1e3&&(We._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."),va=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class wa{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const Pa=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],Ia=new Set(Pa);class xa{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){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,S,w,P,I,x,C,B,E,_,F,A;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||!Ia.has(t.format))throw new TypeError("init.format must be one of: "+Pa.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&&Oe(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:Na(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?R(e):R(e).slice(),this._layout=m,this.colorSpace=new Ra(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)&&Oe(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!=(S=null==t?void 0:t.rotation)?S:0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=null!=(w=null==t?void 0:t.timestamp)?w:e.timestamp/1e6,this.duration=null!=(I=null==t?void 0:t.duration)?I:(null!=(P=e.duration)?P:0)/1e6,this.colorSpace=new Ra(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&&Oe(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new xa(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*me),duration:Math.trunc((null!=(x=t.duration)?x: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 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:Se(),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 Ra({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof wa))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&&!Pa.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!=(F=t.duration)?F:0,this.colorSpace=e.getColorSpace()}this.encodeOptions=null!=(A=null==t?void 0:t.encodeOptions)?A:{},this.pixelAspectRatio=Ne({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),null==Sa||Sa.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return I(null!==this._data),this._data instanceof wa?new xa(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):Fa(this._data)?new xa(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(I(this._layout),new xa(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 xa(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==Sa||Sa.unregister(this),this._data instanceof wa?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Fa(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){var t;if(Ma(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(Fa(this._data))return this._data.allocationSize(e);return La(this,e).allocationSize}copyTo(e){return y(this,arguments,function*(e,t={}){var i,r;if(!H(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(Ma(t),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(i=t.format)?i:this.format))throw new Error("Cannot copy video sample data when format is null.");if(I(null!==this._data),Fa(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 wa)){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=yield i.copyTo(e,t);return i.close(),r}{const i={stack:[],error:void 0,hasError:!1};try{const n=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}(i,yield this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},null!=(r=t.colorSpace)?r:"srgb"),!1);if(!(n instanceof xa))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{ba(i)}}}const n=La(this,t);I(this.format);const s=R(e);if(s.byteLength<n.allocationSize)throw new TypeError(`Destination buffer too small. Required: ${n.allocationSize}, Available: ${s.byteLength}`);const a=Oa(this.format);let o;if(this._data instanceof wa){let e=this._data.getDataPlanes();if(Ce(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)I(this._layout),I(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");I(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);o=[{data:R(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(I(null!==this._data),this._data instanceof wa){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(Ce(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 Fa(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(I(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&&Da(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=Aa(T,m,p));const{sx:v,sy:S,sWidth:w,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,S,w,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 d=r*u(2,c),h=n*u(2,c),{canvas:f,context:m,isNew:p}=c>0?_a(d,h):{canvas:e,context:t,isNew:i.targetIsFresh};m.imageSmoothingQuality="high",i.fillBlack?(m.fillStyle="black",m.fillRect(0,0,d,h)):p||m.clearRect(0,0,d,h),this.drawWithFit(m,{fit:i.fit,rotation:i.rotation,crop:i.crop}),m.globalCompositeOperation="copy";for(let g=c;g>1;g--){const e=r*u(2,g),t=n*u(2,g);m.drawImage(f,0,0,e,t,0,0,e/2,t/2)}m.globalCompositeOperation="source-over",c>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(f,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(I(null!==this._data),this._data instanceof wa||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&&Da(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=x(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=Aa(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=le(f,null!=(i=e.roundDimensionsTo)?i:1),m=le(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 Ca){let t=e(this,p);if(Ce(t)&&(t=yield t),null!==t)return t}const{canvas:g,context:k,isNew:y}=_a(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 xa(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 Ca=[],Ba=[];let Ea=0;const _a=(e,t)=>{for(const n of Ba)if(n.canvas.width===e&&n.canvas.height===t)return n.age=Ea++,{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 Ba.length>=3&&Ba.splice(Me(Ba,e=>e.age),1),Ba.push({canvas:i,context:r,age:Ea++}),{canvas:i,context:r,isNew:!0}};class Ra{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(M);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(O);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(z);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 Fa=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,Aa=(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 I(s>=0),I(a>=0),{left:r,top:n,width:s,height:a}},Da=(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.")},Ma=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.")}},Na=(e,t,i)=>{const r=Oa(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},Oa=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:te(e),I(!1)}},La=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,n=za(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 qa(n,a,s)},za=(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(!Ua(n,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},Ua=(e,t)=>{if(null===e)return!0;const i=Oa(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},qa=(e,t,i)=>{const r=Oa(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}},Wa=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]);class Ha{constructor(){this._referenceCount=0}}class Va{get microsecondTimestamp(){return Math.trunc(me*this.timestamp)}get microsecondDuration(){return Math.trunc(me*this.duration)}constructor(e){if(this._closed=!1,Ga(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 Ha){if(this._data=e,e._referenceCount++,this.format=e.getFormat(),!Wa.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(!Wa.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/(ja(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*ja(this.format);if(i.byteLength<r)throw new TypeError("Invalid AudioDataInit: insufficient data size.");this._data=i}null==Sa||Sa.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&&!Wa.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=ja(r),o=Ka(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(!H(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&&!Wa.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=ja(o),f=Ka(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=F(e),g=$a(o);if(Ga(this._data)){if(Te()&&c>2&&o!==a)return void Qa(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(S){if("f32-planar"===o)throw S;a="f32-planar"}}const k=Xa(a),y=ja(a),b=Ka(a);let T;if(this._data instanceof Ha){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(I("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=F(T);for(let w=0;w<d;w++)if(f){let e;e=b?(s*l+(w+u))*y:((w+u)*c+s)*y;g(p,w*h,k(v,e))}else for(let e=0;e<c;e++){let t;t=b?(e*l+(w+u))*y:((w+u)*c+e)*y;g(p,(w*c+e)*h,k(v,t))}}clone(){if(this._closed)throw new Error("AudioSample is closed.");if(this._data instanceof Ha){const e=new Va(this._data);return e.setTimestamp(this.timestamp),e}if(Ga(this._data)){const e=new Va(this._data.clone());return e.setTimestamp(this.timestamp),e}return new Va({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=ja(this.format);let n;if(Ka(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 Va({data:n,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(null==Sa||Sa.unregister(this),this._data instanceof Ha?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Ga(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 Ha?this._createAudioDataFromData():Ga(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(Ka(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 Va({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 Va({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 ja=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")}},Ka=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},Xa=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)}},$a=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,se(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,se(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,se(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},Ga=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,Qa=(e,t,i,r,n,s,a,o)=>{const l=Xa(i),c=$a(r),u=ja(i),d=ja(r),h=Ka(i);if(Ka(r))if(h){const r=new ArrayBuffer(o*u),n=F(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=F(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=F(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=F(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))}}},Ya=[],Ja=[],Za=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.")},eo=e=>{if(!Fe(e))throw new TypeError("timestamp must be a number.")},to=(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 io{constructor(e){if(!(e instanceof yo))throw new TypeError("track must be an InputTrack.");this._track=e}getFirstPacket(){return y(this,arguments,function*(e={}){if(Za(e),this._track.input._disposed)throw new Do;return to(this._track,this._track._backing.getFirstPacket(e),e)})}getFirstKeyPacket(){return y(this,arguments,function*(e={}){Za(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(eo(e),Za(t),this._track.input._disposed)throw new Do;return to(this._track,this._track._backing.getPacket(e,t),t)})}getNextPacket(e){return y(this,arguments,function*(e,t={}){if(!(e instanceof Li))throw new TypeError("packet must be an EncodedPacket.");if(Za(t),this._track.input._disposed)throw new Do;return to(this._track,this._track._backing.getNextPacket(e,t),t)})}getKeyPacket(e){return y(this,arguments,function*(e,t={}){if(eo(e),Za(t),this._track.input._disposed)throw new Do;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=yield this._track._backing.getKeyPacket(e,t);if(!i)return i;I("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 Li))throw new TypeError("packet must be an EncodedPacket.");if(Za(t),this._track.input._disposed)throw new Do;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=yield this._track._backing.getNextKeyPacket(e,t);if(!i)return i;I("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 Li))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 Li))throw new TypeError("endPacket must be an EncodedPacket.");if(Za(i),this._track.input._disposed)throw new Do;const r=[];let{promise:n,resolve:s}=Y(),{promise:a,resolve:o}=Y(),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}=Y()),yield a):(r.push(u),s(),({promise:n,resolve:s}=Y()),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 Do;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 ro{constructor(e,t){this.onSample=e,this.onError=t}}class no{mediaSamplesInRange(e=-1/0,t=1/0,i){eo(e),eo(t);const r=[];let n=!1,s=null,{promise:a,resolve:o}=Y(),{promise:l,resolve:c}=Y(),u=!1,d=!1,m=!1,p=null,g=null,k=!1;const b=f(h({},i),{verifyKeyPackets:!0,metadataOnly:!1});(()=>y(this,null,function*(){var i;p=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}=Y())))},e=>{k||(g=e,k=!0,o())});const h=this._createPacketSink(),f=null!=(i=yield h.getKeyPacket(e,b))?i:yield h.getFirstKeyPacket(b);let y=f;const T=h.packets(null!=f?f:void 0,void 0,b);for(yield T.next();y&&!d&&!this._track.input._disposed;){const e=so(r.length);if(r.length+p.getDecodeQueueSize()>e){({promise:l,resolve:c}=Y()),yield l;continue}p.decode(y);const t=yield T.next();if(t.done)break;y=t.value}yield T.return(),m||this._track.input._disposed||(yield p.flush()),!n&&s&&r.push(s),u=!0,o()}))().catch(e=>{k||(g=e,k=!0,o())}).finally(()=>{null==p||p.close()});const T=this._track,v=()=>{null==s||s.close();for(const e of r)e.close()};return{next(){return y(this,null,function*(){for(;;){if(T.input._disposed)throw m=!0,d=!0,v(),new Do;if(m)return{value:void 0,done:!0};if(k)throw m=!0,d=!0,v(),g;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 m=!0,d=!0,c(),o(),v(),{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 T(this,null,function*(){Symbol.iterator in e?yield*v(e[Symbol.iterator]()):yield*v(e[Symbol.asyncIterator]())})}(e),r=[],n=[];let{promise:s,resolve:a}=Y(),{promise:o,resolve:l}=Y(),c=!1,u=!1,d=null,m=null,p=!1;const g=e=>{n.push(e),a(),({promise:s,resolve:a}=Y())},k=f(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++)g(i<t-1?e.clone():e);else e.close()},e=>{p||(m=e,p=!0,a())});const e=this._createPacketSink();let t=null,s=null,h=-1;const f=()=>y(this,null,function*(){I(s),I(d);let t=s;for(d.decode(t);t.sequenceNumber<h;){const i=so(n.length);for(;n.length+d.getDecodeQueueSize()>i&&!u;)({promise:o,resolve:l}=Y()),yield o;if(u)break;const r=yield e.getNextPacket(t,k);I(r),d.decode(r),t=r}h=-1}),b=()=>y(this,null,function*(){I(d),yield d.flush();for(let e=0;e<r.length;e++)g(null);r.length=0});try{for(var T,v,w,P=S(i);T=!(v=yield P.next()).done;T=!1){const i=v.value;if(eo(i),u||this._track.input._disposed)break;const n=yield e.getPacket(i,k),a=n&&(yield e.getKeyPacket(i,k));a?(t&&(a.sequenceNumber!==s.sequenceNumber||n.timestamp<t.timestamp)&&(yield f(),yield b()),r.push(n.timestamp),h=Math.max(n.sequenceNumber,h),t=n,s=a):(-1!==h&&(yield f(),yield b()),g(null),t=null)}}catch(v){w=[v]}finally{try{T&&(v=P.return)&&(yield v.call(P))}finally{if(w)throw w[0]}}u||this._track.input._disposed||(-1!==h&&(yield f()),yield b()),c=!0,a()}))().catch(e=>{p||(m=e,p=!0,a())}).finally(()=>{null==d||d.close()});const b=this._track,w=()=>{for(const e of n)null==e||e.close()};return{next(){return y(this,null,function*(){for(;;){if(b.input._disposed)throw u=!0,w(),new Do;if(u)return{value:void 0,done:!0};if(p)throw u=!0,w(),m;if(n.length>0){const e=n.shift();return I(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(),w(),{value:void 0,done:!0}})},throw(e){return y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}const so=e=>0===e?40:8;class ao extends ro{constructor(e,t,i,r,n,s){var a,o,l,c,u,d,m,p;super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=n,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new ye,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 g=Ya.find(e=>e.supports(i,r));if(g)this.customDecoder=new g,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof xa))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();I(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(Pe()){if("avc"===i&&this.decoderConfig.description){const e=mt(R(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=gt(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig=f(h({},this.decoderConfig),{hardwareAcceleration:"prefer-software"})),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=yt(t),this.decoderConfig=f(h({},this.decoderConfig),{description:ft(e)})))}}q(this.decoderConfig.colorSpace)||(this.decoderConfig=f(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!=(p=null==(m=this.decoderConfig.colorSpace)?void 0:m.fullRange)&&p}}))}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:(I(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(I(this.decoder),Te()||Q(this.inputTimestamps,e.timestamp,e=>e),Pe()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const n of at(e.data,this.decoderConfig)){const r=ot(e.data[n.offset]);if(i||(i=r>=1&&r<=5),r===et.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(ot(i[0])!==et.SPS)continue;const r=gt(i);r&&0!==r.maxDecFrameBuffering&&1!==r.bitstreamRestrictionFlag&&(t[e]=yt(r));break}const r=((e,t)=>{if(t.description){const i=3&R(t.description)[4];return dt(e,i+1)}return ut(e)})(t,this.decoderConfig);e=new Li(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=Ft(e.data,this.decoderConfig);t&&(e=new Li(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 lo),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();I(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();I(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=Ut(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 bt(e,this.decoderConfig)){const i=Tt(e[t.offset]);if(i===it.RASL_N||i===it.RASL_R)return!0}return!1}sampleHandler(e){if(Te()){if(this.sampleQueue.length>0&&e.timestamp>=C(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}Q(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();I(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=Y();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){I(this.merger);const i=yield this.merger.merge(e,t);r.sample=new xa(i)}else r.sample=new xa(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(n){J(this.finalSamples,r),this.onError(n)}finally{J(this.mergeAlphaPromises,i.promise),i.resolve()}})}flush(){return y(this,null,function*(){var e;if(this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(I(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),Te()){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()):(I(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 oo=null;class lo{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!oo){const e=new Blob([`(${co.toString()})()`],{type:"application/javascript"});oo=URL.createObjectURL(e)}const e=se(navigator.hardwareConcurrency,1,4);for(let t=0;t<e;t++){const e=new Worker(oo);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=Y();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 co=()=>{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 S={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,S)}),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)})},uo=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 ho extends no{constructor(e,t={}){if(!(e instanceof vo))throw new TypeError("videoTrack must be an InputVideoTrack.");uo(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(Ie("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 I(i&&n),n=f(h({},n),{hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency}),new ao(e,t,i,n,r,s)})}_createPacketSink(){return new io(this._track)}getSample(e){return y(this,arguments,function*(e,t={}){eo(e);try{for(var i,r,n,s=S(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 fo{constructor(e,t={}){var i,r,n;if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof vo))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&&Da(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&&uo(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 ho(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=Aa(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||Se()});I(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:n,fillBlack:!this._alpha&&Se()});const a={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),a}getCanvas(e,t){return y(this,null,function*(){eo(e),yield this._ensureInit();const i=yield this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)})}canvases(e,t,i){return T(this,null,function*(){yield new b(this._ensureInit()),yield*v(ne(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e)))})}canvasesAtTimestamps(e,t){return T(this,null,function*(){yield new b(this._ensureInit()),yield*v(ne(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e)))})}}class mo extends ro{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new ye,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=Ja.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 Va))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 Va(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(I(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--)):(I(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()):(I(this.decoder),yield this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0})}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(I(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class po extends ro{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,I(di.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:n,littleEndian:s}=Pi(this.codec);switch(this.inputSampleSize=n,n){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-u(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)):I(!1);break;case 2:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint16(t,s)-u(2,15):"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):I(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>ie(e,t,s)-u(2,23):"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>ie(e,t,i)<<8>>8)(e,t,s):I(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-u(2,31):"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):I(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):I(!1);break;default:te(n),I(!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+u(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:te(n),I(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=F(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 Va({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 go extends no{constructor(e){if(!(e instanceof So))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(Ie("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 I(i&&r),di.includes(r.codec)?new po(e,t,r):new mo(e,t,i,r)})}_createPacketSink(){return new io(this._track)}getSample(e){return y(this,arguments,function*(e,t={}){eo(e);try{for(var i,r,n,s=S(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 ko{constructor(e){if(!(e instanceof So))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new go(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*(){eo(e);const i=yield this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)})}buffers(e,t,i){return ne(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return ne(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class yo{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof vo}isAudioTrack(){return this instanceof So}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 bo(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}getLanguageCode(){return y(this,null,function*(){return this._backing.getLanguageCode()})}get languageCode(){return bo(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}getName(){return y(this,null,function*(){return this._backing.getName()})}get name(){return bo(this._backing.getName(),"name","getName")}getTimeResolution(){return y(this,null,function*(){return this._backing.getTimeResolution()})}get timeResolution(){return bo(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 bo(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 ce(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 io(this);let r=1/0,n=-1/0,s=0,a=0;try{for(var o,l,c,u=S(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 yo))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(xo({filter:e=>e.canBePairedWith(this)},e))})}getPairableVideoTracks(e){return y(this,null,function*(){return this.input.getVideoTracks(xo({filter:e=>e.canBePairedWith(this)},e))})}getPairableAudioTracks(e){return y(this,null,function*(){return this.input.getAudioTracks(xo({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableVideoTrack(e){return y(this,null,function*(){return this.input.getPrimaryVideoTrack(xo({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableAudioTrack(e){return y(this,null,function*(){return this.input.getPrimaryAudioTrack(xo({filter:e=>e.canBePairedWith(this)},e))})}hasPairableTrack(e){return y(this,null,function*(){e&&(e=To(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=To(e)),this.hasPairableTrack(t=>y(this,null,function*(){return t.isVideoTrack()&&(!e||(yield e(t)))}))}hasPairableAudioTrack(e){return e&&(e=To(e)),this.hasPairableTrack(t=>y(this,null,function*(){return t.isAudioTrack()&&(!e||(yield e(t)))}))}}const bo=(e,t,i)=>{if(Ce(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},To=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 Ce(r)?r.then(i):i(r)}:void 0};class vo extends yo{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 bo(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 bo(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}getCodedHeight(){return y(this,null,function*(){return this._backing.getCodedHeight()})}get codedHeight(){return bo(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}getRotation(){return y(this,null,function*(){return this._backing.getRotation()})}get rotation(){return bo(this._backing.getRotation(),"rotation","getRotation")}getSquarePixelWidth(){return y(this,null,function*(){return this._backing.getSquarePixelWidth()})}get squarePixelWidth(){return bo(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}getSquarePixelHeight(){return y(this,null,function*(){return this._backing.getSquarePixelHeight()})}get squarePixelHeight(){return bo(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}getPixelAspectRatio(){return y(this,null,function*(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=Ne({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=Ne({num:bo(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*bo(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:bo(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*bo(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=bo(i,"displayWidth","getDisplayWidth");if(null!==e)return e}const r=bo(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return bo(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=bo(i,"displayHeight","getDisplayHeight");if(null!==e)return e}const r=bo(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return bo(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(I(null!==t),Ya.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(yield VideoDecoder.isConfigSupported(e)).supported}catch(e){return We._error("Error during decodability check:",e),!1}})}determinePacketType(e){return y(this,null,function*(){if(!(e instanceof Li))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 I(i),Ut(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&&(!Fe(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 io(this),a=[];let o=-1/0,l=0;try{for(var c,u,d,h=S(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 S=0;S<a.length;S++)f[S]=Math.round(a[S]*r);f.sort();let m=1;for(let S=1;S<f.length;S++)f[S]!==f[m-1]&&(f[m++]=f[S]);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=Bo(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 S=1;S<m;S++){const e=p[S]-p[S-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 P=m-1,I=[...b.keys()].sort((e,t)=>e-t),x=P-1>>1,C=P>>1;let B=0,E=0,_=0;for(const S of I)if(_+=b.get(S),0===B&&_>x&&(B=S),_>C){E=S;break}const R=(k/B+k/E)/2;return{underlyingFrameRate:g,bestGuessFrameRate:null!==g?g:_o(R),minFrameRate:k/v,maxFrameRate:k/T,averageFrameRate:k*P/w,medianFrameRate:R,frameRateIsConstant:null!==g&&1===T&&1===v,probedPacketCount:l}})}}class So extends yo{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 bo(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 bo(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}getSampleRate(){return y(this,null,function*(){return this._backing.getSampleRate()})}get sampleRate(){return bo(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(I(null!==t),Ja.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 We._error("Error during decodability check:",e),!1}})}determinePacketType(e){return y(this,null,function*(){if(!(e instanceof Li))throw new TypeError("packet must be an EncodedPacket.");return null===(yield this.getCodec())?null:"key"})}}const wo=e=>-(null!=e?e:-1/0),Po=e=>-e,Io=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 Ce(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 Ce(r)?r.then(i):i(r)}:void 0}},xo=(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 0:r.call(e,i))||n,a=e=>{var r,n;return!1!==e&&(null==(n=null==(r=null==t?void 0:t.filter)?void 0:r.call(t,i))||n)};return Ce(s)?s.then(a):a(s)}:void 0,sortBy:(null==e?void 0:e.sortBy)||(null==t?void 0:t.sortBy)?i=>{var r,n,s,a;const o=null!=(n=null==(r=null==e?void 0:e.sortBy)?void 0:r.call(e,i))?n:[],l=null!=(a=null==(s=null==t?void 0:t.sortBy)?void 0:s.call(t,i))?a:[],c=(e,t)=>[...Array.isArray(e)?e:[e],...Array.isArray(t)?t:[t]];return Ce(o)||Ce(l)?Promise.all([o,l]).then(([e,t])=>c(e,t)):c(o,l)}:void 0}),Co=(e,t)=>y(null,null,function*(){let i=e;if(null==t?void 0:t.filter){const r=e.map(e=>t.filter(e));if(r.some(e=>Ce(e))){const t=yield Promise.all(r);i=e.filter((e,i)=>t[i])}else i=e.filter((e,t)=>r[t])}if(!(null==t?void 0:t.sortBy))return i;const r=i.map(e=>t.sortBy(e)),n=r.some(e=>Ce(e))?yield Promise.all(r):r;return i.map((e,t)=>({track:e,sortValue:n[t]})).sort((e,t)=>{var i,r;const 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t?(i=Vo(e,!0),r=Vo(e,!0)):(r=Vo(e,!1),i=Vo(e,!1)),4294967296*r+i},Go=e=>4294967296*jo(e)+jo(e),Qo=e=>4294967296*Xo(e)+jo(e),Yo=e=>{const t=Ko(e),i=(e=>{Oo(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},Jo=e=>{Oo(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Zo=e=>{Oo(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},el=(e,t)=>{Oo(e,t);let i="";for(let r=0;r<t;r++)i+=String.fromCharCode(e.bytes[e.bufferPos++]);return i},tl=(e,t,i)=>A.decode(Lo(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 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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&il.Unsynchronisation)),h)We._warn(`Skipping encrypted ID3v2 frame ${e.id}`),d.pos=u;else if(f)We._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!==ll[e]){null!=i.genre||(i.genre=ll[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==ll[e]){null!=i.genre||(i.genre=ll[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 fl{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),n=this.bytes.subarray(t);this.bytes=new Uint8Array(r.length+i.length+n.length),this.bytes.set(r,0),this.bytes.set(i,r.length),this.bytes.set(n,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?Fi(t):t;const r=this.readU16(),n=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:Fi(t);s(e)&&(i=e)}return this.pos=n,{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 nl.ISO_8859_1:{let e="";for(let t=0;t<r.length;t++){const n=r[t];if(0===n){this.pos=i+t+1;break}e+=String.fromCharCode(n)}return e}case nl.UTF_16_WITH_BOM:if(255===r[0]&&254===r[1]){const e=new TextDecoder("utf-16le"),t=Be(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=Be(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=Be(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),A.decode(r.subarray(0,e))}case nl.UTF_16_BE_NO_BOM:{const e=new TextDecoder("utf-16be"),t=Be(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 nl.UTF_8:{const e=Be(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),A.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class ml{constructor(e){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}get currentTime(){return this.paused?this.playbackTimeAtStart:(this.audioContext.currentTime-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart}ensureAudioContext(e){if(this.audioContext)return;const t=window.AudioContext||window.webkitAudioContext;try{this.audioContext=new t({sampleRate:e})}catch(i){this.audioContext=new t}this.gainNode=this.audioContext.createGain(),this.gainNode.connect(this.audioContext.destination),this.updateGain()}updateGain(){if(!this.gainNode)return;const e=this.muted?0:this.volume;this.gainNode.gain.value=e*e}stopQueuedNodes(){this.queuedNodes.forEach(e=>e.stop()),this.queuedNodes.clear()}stopIterator(){return y(this,null,function*(){var e;yield null==(e=this.audioIterator)?void 0:e.return(),this.audioIterator=null})}handleNoAudioTrack(){this.audioSink=null,this.ensureAudioContext()}load(e,t){return y(this,null,function*(){++this.asyncId,yield this.stopIterator(),this.stopQueuedNodes(),this.paused=!0,this.playbackTimeAtStart=0,this.audioContextStartTime=0;const{input:i,audioTrack:r,duration:n}=e;return this.input=i,this.duration=n,r?null!==r.codec&&(yield r.canDecode())?(this.ensureAudioContext(r.sampleRate),this.audioSink=new ko(r),void(null==t||t())):(this.audioSink=null,this.ensureAudioContext(),void(null==t||t())):(this.handleNoAudioTrack(),void(null==t||t()))})}runIterator(e){return y(this,null,function*(){if(!this.audioSink)return;yield this.stopIterator(),this.audioIterator=this.audioSink.buffers(this.currentTime);for(;;){if(e!==this.asyncId||this.paused)return;const i=[];let r=!1;try{for(let e=0;e<16;e++){const e=yield this.audioIterator.next();if(e.done){r=!0;break}i.push(e.value)}}catch(t){console.error("Audio iterator error:",t),r=!0}if(e!==this.asyncId||this.paused)return;i.length>0&&"suspended"===this.audioContext.state&&(yield this.audioContext.resume(),this.events.emit("canplay"),this.events.emit("playing"));for(const{buffer:e,timestamp:t}of i){const i=this.audioContext.createBufferSource();i.buffer=e,i.connect(this.gainNode),i.playbackRate.value=this.playbackRate;const r=this.audioContextStartTime+(t-this.playbackTimeAtStart)/this.playbackRate,n=(r+e.duration/this.playbackRate-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart;n>this.latestScheduledEndTime&&(this.latestScheduledEndTime=n),r>=this.audioContext.currentTime?i.start(r):i.start(this.audioContext.currentTime,(this.audioContext.currentTime-r)*this.playbackRate),this.queuedNodes.add(i),i.onended=()=>this.queuedNodes.delete(i)}if(r)break;yield new Promise(e=>setTimeout(e,0));const n=1;for(;this.latestScheduledEndTime-this.currentTime>n;){if(e!==this.asyncId||this.paused)return;yield new Promise(e=>setTimeout(e,50))}}})}play(){return y(this,null,function*(){if(!this.paused)return;this.audioContext||this.ensureAudioContext(),"suspended"===this.audioContext.state&&(yield this.audioContext.resume()),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1;const e=++this.asyncId;this.runIterator(e)})}pause(){this.paused||(this.playbackTimeAtStart=this.currentTime,this.paused=!0,this.stopIterator(),this.stopQueuedNodes())}seek(e){return y(this,null,function*(){this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart;const t=++this.asyncId;this.paused||this.runIterator(t)})}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){if(e!==this.playbackRate&&(this.paused||(this.playbackTimeAtStart=this.currentTime,this.audioContextStartTime=this.audioContext.currentTime),this.playbackRate=e,!this.paused)){const e=++this.asyncId;this.runIterator(e)}}destroy(){var e;this.asyncId++,this.pause(),null==(e=this.audioContext)||e.close(),this.audioContext=null,this.input=null,this.audioSink=null}}function pl(e){return y(this,null,function*(){var t,i;return null!=(i=null!=(t=yield e.getAverageBitrate())?t:yield e.getBitrate())?i:0})}const gl=/\.m3u8(?:$|[?#])/i;function kl(e){return"string"===typeof e&&gl.test(e)}function yl(e){const t=function(e){return"string"===typeof e?new Bs(e):e instanceof Blob?new Ps(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new Rs(e):null!=e?e:null}(e);return t?new Fo({source:t,formats:kl(e)?ya:ka}):null}class bl{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 Tl(e,t,i){for(const r of i){if(!t())return;e.emit(r)}}function vl(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 Sl(){let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}}class wl{constructor(e){this.host=e,this.wanted=!1,this.playing=null,this.seeking=null,this.audioStart=null}operation(){return f(h({},Sl()),{source:this.host.loadSeq,complete:Sl()})}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}startAudio(){return y(this,null,function*(){this.audioStart||(this.audioStart=this.host.audio.play());const e=this.audioStart;try{yield e}finally{this.audioStart===e&&(this.audioStart=null)}})}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.startAudio(),!t())return void(this.wanted&&!this.host.destroyed||this.host.audio.pause());this.host.video.start(this.host.audio),Tl(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 vl(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,Tl(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(),Tl(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())})}}class Pl{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:n=.12,dropLateFrames:s=!1,poster:a="",preflightRange:o=!1}){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}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||kl(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(!this.poster||this.posterDrawn)return;const e=new Image;e.onload=()=>{this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,this.ctx.drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e.src=this.poster}stopIterator(){return y(this,null,function*(){var e;yield null==(e=this.videoIterator)?void 0:e.return(),this.videoIterator=null})}clear(){this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height)}load(e,t){return y(this,null,function*(){++this.asyncId,yield this.stopIterator(),this.clear(),this.posterDrawn=!1;const{input:i,videoTrack:r,duration:n}=e;if(this.input=i,this.duration=n,!r)return this.handleNoVideoTrack(),void(null==t||t());if(null===r.codec||!(yield r.canDecode()))return this.handleNoVideoTrack(),void(null==t||t());const s=yield r.canBeTransparent();this.videoSink=new fo(r,{poolSize:2,fit:"contain",alpha:s}),this.width=r.displayWidth,this.height=r.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,null==t||t(),yield this.resetIterator(0)})}handleNoVideoTrack(){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*(){var t,i;if(yield this.stopIterator(),!this.videoSink)return;this.videoIterator=this.videoSink.canvases(e);const r=null!=(t=(yield this.videoIterator.next()).value)?t:null,n=null!=(i=(yield this.videoIterator.next()).value)?i:null;this.nextFrame=n,r?this.ctx.drawImage(r.canvas,0,0):this.drawPoster()})}updateNextFrame(e){return y(this,null,function*(){var t;if(this.videoIterator&&!this.isFetching){this.isFetching=!0;try{for(;;){const i=null!=(t=(yield this.videoIterator.next()).value)?t:null;if(!i||e!==this.asyncId)return;const r=this.audioClock.currentTime,n=this.dropLateFrames?Math.max(.06,this.avSyncTolerance/Math.max(1,this.playbackRate)):0;if(!(this.dropLateFrames&&i.timestamp<r-n)){if(!(i.timestamp<=r+n))return void(this.nextFrame=i);if(this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.ctx.drawImage(i.canvas,0,0),!this.dropLateFrames&&i.timestamp>r)return void(this.nextFrame=null)}}}finally{this.isFetching=!1}}})}render(){if(!this.audioClock)return;const e=this.audioClock.currentTime,t=Date.now();if(t-this.lastTimeUpdate>=this.timeupdateInterval&&(this.events.emit("timeupdate"),this.lastTimeUpdate=t),Number.isFinite(this.duration)&&e>=this.duration)return this.stop(),this.stalled=!1,this.events.emit("ended"),this.events.emit("pause"),void this.events.emit("canplay");this.nextFrame&&this.nextFrame.timestamp<=e?(this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.ctx.drawImage(this.nextFrame.canvas,0,0),this.nextFrame=null,this.updateNextFrame(this.asyncId),this.stalled&&(this.events.emit("canplay"),this.events.emit("playing"),this.stalled=!1)):this.nextFrame||(this.updateNextFrame(this.asyncId),!this.nextFrame&&Number.isFinite(this.duration)&&e<this.duration&&!this.stalled&&(this.stalled=!0,this.events.emit("waiting"))),this.rafId=requestAnimationFrame(()=>this.render())}start(e){this.audioClock=e,this.asyncId++,this.stalled=!1,this.updateNextFrame(this.asyncId),this.rafId=requestAnimationFrame(()=>this.render())}stop(){cancelAnimationFrame(this.rafId)}seek(e){return y(this,null,function*(){this.asyncId++,yield this.resetIterator(e)})}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){this.asyncId++,this.stop(),this.stopIterator(),this.posterDrawn=!1,this.videoSink=null,this.input=null}}class Il{constructor({canvas:e,ctx:i,events:r,option:n={}}){var s,a,o,l,c;g(this,t),this.events=r,this.option=n,this.audio=new ml(r),this.video=new Pl({canvas:e,ctx:i,events:r,timeupdateInterval:null!=(s=n.timeupdateInterval)?s:250,avSyncTolerance:null!=(a=n.avSyncTolerance)?a:.12,dropLateFrames:null!=(o=n.dropLateFrames)&&o,poster:null!=(l=n.poster)?l:"",preflightRange:null!=(c=n.preflightRange)&&c}),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,k(this,t,new wl(this)),r.addEventListener("ended",()=>{this.destroyed||(this.ended=!0,this.paused=!0,p(this,t).ended())})}load(e){return y(this,null,function*(){var i,r;if(this.destroyed)return;const n=++this.loadSeq;if(p(this,t).invalidate(),null==(i=this.loadSession)||i.cancel(),n!==this.loadSeq||this.destroyed)return;if(this.pause(),n!==this.loadSeq||this.destroyed)return;this.disposeInput();const s=new bl;this.loadSession=s,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,s.defer(()=>this.events.emit("waiting")),s.defer(()=>this.events.emit("loadstart"));const a=Number.isFinite(this.option.loadTimeout)&&null!=(r=this.option.loadTimeout)?r:0;try{yield s.wait(this.performLoad(e,n,s),a)}catch(o){if(n!==this.loadSeq)return;const e=++this.loadSeq;if(p(this,t).invalidate(),s.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.reportError(o)}})}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=yl(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 vl({input:e,videoTrack:i,audioTrack:r}),s=i||r,a=kl(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")}}(()=>{this.readyState=1,Tl(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;this.readyState=4,this.networkState=1,Tl(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 p(this,t).replace(h(h({},this.media),e),this.currentTime)})}selectHlsQuality(e){return y(this,null,function*(){return function(e,t){return y(this,null,function*(){var i;const{input:r,media:n,loadSeq:s}=e;if(!(null==n?void 0:n.isHls)||!r||e.destroyed)return;const a=()=>!e.destroyed&&e.loadSeq===s&&e.input===r&&e.media===n;let o;try{const e=yield r.getVideoTracks();if(!a())return;const s="auto"===t?yield r.getPrimaryVideoTrack():null!=(i=e.find(e=>e.id===t))?i:n.videoTrack;if(!a()||!s)return;let l=n.audioTrack,c=n.audioMode;l&&s.canBePairedWith(l)||(l=yield s.getPrimaryPairableAudioTrack(),c="auto"),o={videoTrack:s,audioTrack:l,videoMode:"auto"===t?"auto":"manual",audioMode:c}}catch(l){if(!a())return;throw l}a()&&(yield e.replaceTracks(o))})}(this,e)})}selectHlsAudio(e){return y(this,null,function*(){return function(e,t){return y(this,null,function*(){var i;const{input:r,media:n,loadSeq:s}=e;if(!(null==n?void 0:n.isHls)||!r||e.destroyed)return;const a=()=>!e.destroyed&&e.loadSeq===s&&e.input===r&&e.media===n;let o;try{const e=yield r.getAudioTracks();if(!a())return;const s="auto"===t?n.videoTrack?yield n.videoTrack.getPrimaryPairableAudioTrack():yield r.getPrimaryAudioTrack():null!=(i=e.find(e=>e.id===t))?i:n.audioTrack;if(!a()||!s)return;let l=n.videoTrack,c=n.videoMode;l&&s.canBePairedWith(l)||(l=yield s.getPrimaryPairableVideoTrack(),c="auto"),o={videoTrack:l,audioTrack:s,videoMode:c,audioMode:"auto"===t?"auto":"manual"}}catch(l){if(!a())return;throw l}a()&&(yield e.replaceTracks(o))})}(this,e)})}getHlsState(){return y(this,null,function*(){const e=this.media;if(this.destroyed)return null;try{const t=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 pl(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 pl(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.media!==e?null:t}catch(t){if(this.destroyed||this.media!==e)return null;throw t}})}play(){return y(this,null,function*(){return p(this,t).play()})}pause(){p(this,t).pause()}seek(e){return y(this,null,function*(){return p(this,t).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++,p(this,t).invalidate();const e=[];for(const t of[()=>{var e;return null==(e=this.loadSession)?void 0:e.cancel()},()=>this.pause(),()=>this.disposeInput(),()=>this.audio.destroy(),()=>this.video.destroy()])try{t()}catch(i){e.push(i)}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}}t=new WeakMap;const xl=new WeakMap;function Cl(e){let t=xl.get(e);return t||(t={closed:!1,frames:new Set},xl.set(e,t)),t}class Bl{constructor({art:e,canvas:t,ctx:i,option:r}){var n,s;this.art=e,this.canvas=t,this.option=r,this.events=new P,this.engine=new Il({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=Cl(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){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()}}}return function(e={}){return t=>{const{constructor:i}=t,{createElement:r}=i.utils,n=r("canvas"),s=n.getContext("2d"),a=new Bl({art:t,canvas:n,ctx:s,option:e});t.mediabunny=a;const o={};for(const e in n)"function"===typeof n[e]&&(o[e]=n[e].bind(n));const l=new Set([...Object.getOwnPropertyNames(a),...Object.getOwnPropertyNames(Object.getPrototypeOf(a))]);for(const e of l)"constructor"!==e&&(e in n||Object.defineProperty(n,e,{get(){const t=a[e];return"function"===typeof t?t.bind(a):t},set(t){a[e]=t},configurable:!0,enumerable:!0}));for(const e in o)n[e]=(...t)=>o[e](...t);function c(){var e;(null==(e=t.template)?void 0:e.$player)&&!t.option.autoSize&&Object.assign(n.style,{width:"100%",height:"100%",objectFit:"contain"})}return t.on("resize",c),t.on("video:loadedmetadata",c),function({art:e,shim:t,option:i}){if(i.m3u8)return e.on("video:loadedmetadata",u),e.on("restart",u),{update:u};function r(t){e.controls.cache.has(t)&&e.controls.remove(t)}function n(t){e.setting.find(t)&&e.setting.remove(t)}function s(){r("mediabunny-quality"),n("mediabunny-quality")}function a(){r("mediabunny-audio"),n("mediabunny-audio")}function o(e={}){return e.control||e.setting}function l(r){return y(this,null,function*(){var n;const a=(null==(n=i.m3u8)?void 0:n.quality)||{};if(!o(a)||!(null==r?void 0:r.levels.length))return void s();const l=a.auto||"Auto",c=a.title||"Quality",d=a.getName||(e=>e.name||`${e.height}P`),h=r.currentLevel?d(r.currentLevel):l,f=w(r.levels.map(e=>{var t;return{html:d(e),value:e.id,default:(null==(t=r.currentLevel)?void 0:t.id)===e.id}}),"html").sort((e,t)=>{const i=r.levels.find(t=>t.id===e.value),n=r.levels.find(e=>e.id===t.value);return((null==n?void 0:n.height)||0)-((null==i?void 0:i.height)||0)});f.push({html:l,value:"auto",default:!r.currentLevel});const m=i=>y(null,null,function*(){return yield t.switchM3u8Quality(i.value),e.notice.show=`${c}: ${i.html}`,yield u(),i.html});a.control&&e.controls.update({name:"mediabunny-quality",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),a.setting&&e.setting.update({name:"mediabunny-quality",tooltip:h,html:c,icon:'<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" height="18"><path fill="#fff" d="M0 96C0 60.7 28.7 32 64 32l384 0c35.3 0 64 28.7 64 64l0 320c0 35.3-28.7 64-64 64L64 480c-35.3 0-64-28.7-64-64L0 96zM323.8 202.5c-4.5-6.6-11.9-10.5-19.8-10.5s-15.4 3.9-19.8 10.5l-87 127.6L170.7 297c-4.6-5.7-11.5-9-18.7-9s-14.2 3.3-18.7 9l-64 80c-5.8 7.2-6.9 17.1-2.9 25.4s12.4 13.6 21.6 13.6l96 0 32 0 208 0c8.9 0 17.1-4.9 21.2-12.8s3.6-17.4-1.4-24.7l-120-176zM112 192a48 48 0 1 0 0-96 48 48 0 1 0 0 96z"/></svg>',width:200,selector:f,onSelect:m})})}function c(r){return y(this,null,function*(){var n;const s=(null==(n=i.m3u8)?void 0:n.audio)||{};if(!o(s)||!(null==r?void 0:r.audios.length)||r.audios.length<2)return void a();const l=s.auto||"Auto",c=s.title||"Audio",d=s.getName||(e=>e.name||e.lang||e.language),h=r.currentAudio?d(r.currentAudio):l,f=w(r.audios.map(e=>{var t;return{html:d(e),value:e.id,default:(null==(t=r.currentAudio)?void 0:t.id)===e.id}}),"html");f.push({html:l,value:"auto",default:!r.currentAudio});const m=i=>y(null,null,function*(){return yield t.switchM3u8Audio(i.value),e.notice.show=`${c}: ${i.html}`,yield u(),i.html});s.control&&e.controls.update({name:"mediabunny-audio",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),s.setting&&e.setting.update({name:"mediabunny-audio",tooltip:h,html:c,icon:'<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" height="18"><path fill="#fff" d="M256 80C149.9 80 62.4 159.4 49.6 262c9.4-3.8 19.6-6 30.4-6c26.5 0 48 21.5 48 48l0 128c0 26.5-21.5 48-48 48c-44.2 0-80-35.8-80-80l0-16 0-48 0-48C0 146.6 114.6 32 256 32s256 114.6 256 256l0 48 0 48 0 16c0 44.2-35.8 80-80 80c-26.5 0-48-21.5-48-48l0-128c0-26.5 21.5-48 48-48c10.8 0 21 2.1 30.4 6C449.6 159.4 362.1 80 256 80z"/></svg>',width:200,selector:f,onSelect:m})})}function u(){return y(this,null,function*(){const e=yield t.getM3u8State();if(!e)return s(),void a();yield Promise.all([l(e),c(e)])})}}({art:t,shim:a,option:e}),t.on("destroy",()=>{delete t.mediabunny,a.destroy()}),n}}});
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