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/*!
* artplayer-proxy-mediabunny.js v2.0.0
* 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){oe(null!==e.bitDepthLumaMinus8),oe(null!==e.bitDepthChromaMinus8),oe(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)},Qt=e=>{try{const t=me(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 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B=r.pos;if(r.readBits(1)){if(r.readBits(1)){const e=r.readBits(8);if(255===e)S={num:r.readBits(16),den:r.readBits(16)};else{const t=Yt[e];t&&(S=t)}}r.readBits(1)&&r.skipBits(1);if(r.readBits(1)){r.skipBits(3),w=r.readBits(1);r.readBits(1)&&(b=r.readBits(8),T=r.readBits(8),v=r.readBits(8))}r.readBits(1)&&(ue(r),ue(r));r.readBits(1)&&(r.skipBits(32),r.skipBits(32),r.skipBits(1));const e=r.readBits(1);e&&Zt(r);const t=r.readBits(1);t&&Zt(r),(e||t)&&r.skipBits(1),r.skipBits(1),x=r.pos,C=r.readBits(1),C&&(r.skipBits(1),ue(r),ue(r),ue(r),ue(r),P=ue(r),I=ue(r))}if(null===P){oe(null===I);if(44!==n&&86!==n&&100!==n&&110!==n&&122!==n&&244!==n||!(16&s)){const e=h+1,i=(2-y)*(f+1),r=null!=(t=Gi.find(e=>e.level>=a))?t:ce(Gi),n=Math.min(Math.floor(r.maxDpbMbs/(e*i)),16);P=n,I=n}else P=0,I=0}return oe(null!==I),{emulationUnpreventedBytes:i,profileIdc:n,constraintFlags:s,levelIdc:a,frameMbsOnlyFlag:y,chromaFormatIdc:o,bitDepthLumaMinus8:l,bitDepthChromaMinus8:c,codedWidth:m,codedHeight:p,displayWidth:g,displayHeight:k,pixelAspectRatio:S,colourPrimaries:b,matrixCoefficients:v,transferCharacteristics:T,fullRangeFlag:w,numReorderFrames:P,maxDecFrameBuffering:I,vuiParametersFlagBitOffset:B,bitstreamRestrictionFlagBitOffset:x,bitstreamRestrictionFlag:C}}catch(i){return Pt._error("Error parsing AVC SPS:",i),null}},Zt=e=>{const t=ue(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)ue(e),ue(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},ei=e=>{oe(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new Bt(e.emulationUnpreventedBytes),r=new Bt(t);null===e.bitstreamRestrictionFlag?(r.copyBits(e.vuiParametersFlagBitOffset,i),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(oe(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),de(r,2),de(r,1),de(r,16),de(r,16),de(r,e.numReorderFrames),de(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const n=r.pos/8;return oe(Number.isInteger(n)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,n))},ti=(e,t)=>{if(t.description){const i=3&fe(t.description)[21];return qt(e,i+1)}return Ut(e)},ii=e=>e>>1&63,ri=e=>{try{const t=new Bt(Vt(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:n,general_tier_flag:s,general_profile_idc:a,general_profile_compatibility_flags:o,general_constraint_indicator_flags:l,general_level_idc:c}=si(t,i);ue(t);const u=ue(t);let d=0;3===u&&(d=t.readBits(1));const h=ue(t),f=ue(t);let m=h,p=f;if(t.readBits(1)){const e=ue(t),i=ue(t),r=ue(t),n=ue(t);let s=1,a=1;const o=0===d?u:0;1===o?(s=2,a=2):2===o&&(s=2,a=1),m-=(e+i)*s,p-=(r+n)*a}const g=ue(t),k=ue(t);ue(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)ue(t),b=ue(t),ue(t);ue(t),ue(t),ue(t),ue(t),ue(t),ue(t),t.readBits(1)&&t.readBits(1)&&ai(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),ue(t),ue(t),t.skipBits(1));const T=ue(t);if(oi(t,T),t.readBits(1)){const e=ue(t);for(let i=0;i<e;i++)ue(t),t.skipBits(1)}t.skipBits(1),t.skipBits(1);let v=2,w=2,S=2,P=0,I=0,x={num:1,den:1};if(t.readBits(1)){const e=ci(t,i);x=e.pixelAspectRatio,v=e.colourPrimaries,w=e.transferCharacteristics,S=e.matrixCoefficients,P=e.fullRangeFlag,I=e.minSpatialSegmentationIdc}return{displayWidth:m,displayHeight:p,pixelAspectRatio:x,colourPrimaries:v,transferCharacteristics:w,matrixCoefficients:S,fullRangeFlag:P,maxDecFrameBuffering:b+1,spsMaxSubLayersMinus1:i,spsTemporalIdNestingFlag:r,generalProfileSpace:n,generalTierFlag:s,generalProfileIdc:a,generalProfileCompatibilityFlags:o,generalConstraintIndicatorFlags:l,generalLevelIdc:c,chromaFormatIdc:u,bitDepthLumaMinus8:g,bitDepthChromaMinus8:k,minSpatialSegmentationIdc:I}}catch(t){return Pt._error("Error parsing HEVC SPS:",t),null}},ni=e=>{try{const t=[],i=[],r=[],n=[];for(const l of Ut(e)){const s=e.subarray(l.offset,l.offset+l.length),a=ii(s[0]);a===Lt.VPS_NUT?t.push(s):a===Lt.SPS_NUT?i.push(s):a===Lt.PPS_NUT?r.push(s):a!==Lt.PREFIX_SEI_NUT&&a!==Lt.SUFFIX_SEI_NUT||n.push(s)}if(0===i.length||0===r.length)return null;const s=ri(i[0]);if(!s)return null;let a=0;if(r.length>0){const e=r[0],t=new Bt(Vt(e));t.skipBits(16),ue(t),ue(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),ue(t),ue(t),he(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&ue(t),he(t),he(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),n=t.readBits(1);a=i||n?i&&!n?2:!i&&n?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:Lt.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Lt.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Lt.PPS_NUT,nalUnits:r}]:[],...n.length?[{arrayCompleteness:1,nalUnitType:ii(n[0][0]),nalUnits:n}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:a,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return Pt._error("Error building HEVC Decoder Configuration Record:",t),null}},si=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),n=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const a=new Uint8Array(6);for(let u=0;u<6;u++)a[u]=e.readBits(8);const o=e.readBits(8),l=[],c=[];for(let u=0;u<t;u++)l.push(e.readBits(1)),c.push(e.readBits(1));if(t>0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u<t;u++)l[u]&&e.skipBits(88),c[u]&&e.skipBits(8);return{general_profile_space:i,general_tier_flag:r,general_profile_idc:n,general_profile_compatibility_flags:s,general_constraint_indicator_flags:a,general_level_idc:o}},ai=e=>{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&he(e);for(let t=0;t<i;t++)he(e)}else ue(e)}},oi=(e,t)=>{const i=[];for(let r=0;r<t;r++)i[r]=li(e,r,t,i)},li=(e,t,i,r)=>{var n;let s=0,a=0,o=0;if(0!==t&&(a=e.readBits(1)),a){if(t===i){o=t-(ue(e)+1)}else o=t-1;e.readBits(1),ue(e);const a=null!=(n=r[o])?n:0;for(let t=0;t<=a;t++){e.readBits(1)||e.readBits(1)}s=r[o]}else{const t=ue(e),i=ue(e);for(let r=0;r<t;r++)ue(e),e.readBits(1);for(let r=0;r<i;r++)ue(e),e.readBits(1);s=t+i}return s},ci=(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=Yt[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)&&(ue(e),ue(e)),e.readBits(1),e.readBits(1),e.readBits(1),e.readBits(1)&&(ue(e),ue(e),ue(e),ue(e)),e.readBits(1)&&(e.readBits(32),e.readBits(32),e.readBits(1)&&ue(e),e.readBits(1)&&ui(e,!0,t)),e.readBits(1)&&(e.readBits(1),e.readBits(1),e.readBits(1),a=ue(e),ue(e),ue(e),ue(e),ue(e)),{pixelAspectRatio:o,colourPrimaries:i,transferCharacteristics:r,matrixCoefficients:n,fullRangeFlag:s,minSpatialSegmentationIdc:a}},ui=(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?ue(e):i=1===e.readBits(1);let a=1;if(!i){a=ue(e)+1}r&&di(e,a,s),n&&di(e,a,s)}},di=(e,t,i)=>{for(let r=0;r<t;r++)ue(e),ue(e),i&&(ue(e),ue(e)),e.readBits(1)};var hi,fi;(fi=hi||(hi={}))[fi.audAllowed=0]="audAllowed",fi[fi.beforeFirstVcl=1]="beforeFirstVcl",fi[fi.afterFirstVcl=2]="afterFirstVcl",fi[fi.eoBitstreamAllowed=3]="eoBitstreamAllowed",fi[fi.noMoreDataAllowed=4]="noMoreDataAllowed";const mi=(e,t)=>{const i=new Set;let r=hi.audAllowed;for(const s of ti(e,t)){if(r===hi.noMoreDataAllowed){i.add(s.offset);continue}const t=ii(e[s.offset]);if(r===hi.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let n=!1;35===t?r>hi.audAllowed?n=!0:r=hi.beforeFirstVcl:t<=31?r>hi.afterFirstVcl?n=!0:r=hi.afterFirstVcl:36===t?r!==hi.afterFirstVcl?n=!0:r=hi.eoBitstreamAllowed:37===t?r<hi.afterFirstVcl?n=!0:r=hi.noMoreDataAllowed:32===t||33===t||34===t||39===t||t>=41&&t<=44||t>=48&&t<=55?r>hi.beforeFirstVcl?n=!0:r=hi.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r<hi.afterFirstVcl&&(n=!0),n&&i.add(s.offset)}if(0===i.size)return null;const n=[];for(const s of ti(e,t))i.has(s.offset)||n.push(e.subarray(s.offset,s.offset+s.length));return((e,t)=>{if(t.description){const i=3&fe(t.description)[21];return Xt(e,i+1)}return 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Qi)if(d<=m.maxPictureSize){h=m.level;break}const f=pi[l];return{profile:a,level:h,bitDepth:o,chromaSubsampling:c,videoFullRangeFlag:u,colourPrimaries:null!=(t=null==f?void 0:f.colourPrimaries)?t:2,transferCharacteristics:null!=(i=null==f?void 0:f.transferCharacteristics)?i:2,matrixCoefficients:null!=(r=null==f?void 0:f.matrixCoefficients)?r:2}},ki=function*(e){const t=new Bt(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*q(2,7*i),!(128&r))break;if(7===i&&128&r)return null}return e>q(2,32)-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const r=t.readBits(4),n=t.readBits(1),s=t.readBits(1);let a;if(t.skipBits(1),n&&t.skipBits(8),s){const e=i();if(null===e)return;a=e}else a=Math.floor(t.getBitsLeft()/8);oe(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+a)},t.skipBits(8*a)}},yi=e=>{for(const{type:t,data:i}of ki(e)){if(1!==t)continue;const e=new Bt(i),r=e.readBits(3);e.readBits(1);const n=e.readBits(1);let s=0,a=0,o=0;if(n)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let t=0;for(;t<32&&!e.readBits(1);)t++;t<32&&e.skipBits(t)}t=e.readBits(1),t&&(o=e.readBits(5),e.skipBits(32),e.skipBits(5),e.skipBits(5))}const i=e.readBits(1),r=e.readBits(5);for(let n=0;n<=r;n++){e.skipBits(12);const r=e.readBits(5);if(0===n&&(s=r),r>7){const t=e.readBits(1);0===n&&(a=t)}if(t){if(e.readBits(1)){const t=o+1;e.skipBits(t),e.skipBits(t),e.skipBits(1)}}if(i){e.readBits(1)&&e.skipBits(4)}}}const l=e.readBits(4),c=e.readBits(4),u=l+1;e.skipBits(u);const d=c+1;e.skipBits(d);let h=0;if(h=n?0:e.readBits(1),h&&(e.skipBits(4),e.skipBits(3)),e.skipBits(1),e.skipBits(1),e.skipBits(1),!n){e.skipBits(1),e.skipBits(1),e.skipBits(1),e.skipBits(1);const t=e.readBits(1);t&&(e.skipBits(1),e.skipBits(1));let i=0;if(i=e.readBits(1)?2:e.readBits(1),i>0){e.readBits(1)||e.skipBits(1)}t&&e.skipBits(3)}e.skipBits(1),e.skipBits(1),e.skipBits(1);const f=e.readBits(1);let m=8;if(2===r&&f){m=e.readBits(1)?12:10}else r<=2&&(m=f?10:8);let p=0;1!==r&&(p=e.readBits(1));let g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,T=1,v=1,w=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,T=0,v=0):(b=e.readBits(1),0===r?(T=1,v=1):1===r?(T=0,v=0):12===m?(T=e.readBits(1),v=T?e.readBits(1):0):(T=1,v=0),T&&v&&(w=e.readBits(2))),{profile:r,level:s,tier:a,bitDepth:m,monochrome:p,chromaSubsamplingX:T,chromaSubsamplingY:v,chromaSamplePosition:w,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},bi=e=>{if(e.length<36)return null;const t=me(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},Ti=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],vi=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in Setup header.");if("vorbis"!==String.fromCharCode(...e.slice(1,7)))throw new Error("Invalid packet signature in Setup header.");const t=e.length,i=new Uint8Array(t);for(let u=0;u<t;u++)i[u]=e[t-1-u];const r=new Bt(i);let n=0;for(;r.getBitsLeft()>97;)if(1===r.readBits(1)){n=r.pos;break}if(0===n)throw new Error("Invalid Setup header: framing bit not found.");let s=0,a=!1,o=0;for(;r.getBitsLeft()>=97;){const e=r.pos,t=r.readBits(8),i=r.readBits(16),n=r.readBits(16);if(t>63||0!==i||0!==n){r.pos=e;break}if(r.skipBits(1),s++,s>64)break;r.clone().readBits(6)+1===s&&(a=!0,o=s)}if(!a)throw new Error("Invalid Setup header: mode header not found.");if(o>63)throw new Error(`Unsupported mode count: ${o}.`);const l=o;r.pos=0,r.skipBits(n);const c=Array(l).fill(0);for(let u=l-1;u>=0;u--)r.skipBits(40),c[u]=r.readBits(1);return{modeBlockflags:c}},wi=(e,t,i)=>{switch(e){case"avc":for(const e of Wt(i,t)){const t=i[e.offset],r=Ht(t);if(r>=Nt.NON_IDR_SLICE&&r<=Nt.SLICE_DPC)return"delta";if(r===Nt.IDR)return"key";if(r===Nt.SEI&&!at()){const t=i.subarray(e.offset,e.offset+e.length),r=Vt(t);let n=1;do{let e=0;for(;;){const t=r[n++];if(void 0===t)break;if(e+=t,t<255)break}let t=0;for(;;){const e=r[n++];if(void 0===e)break;if(t+=e,e<255)break}if(e===6){const e=new Bt(r);e.pos=8*n;const t=ue(e),i=e.readBits(1);if(0===t&&1===i)return"key"}n+=t}while(n<r.length-1)}}return"delta";case"hevc":for(const e of ti(i,t)){const t=ii(i[e.offset]);if(t<Lt.BLA_W_LP)return"delta";if(t<=Lt.RSV_IRAP_VCL23)return"key"}return"delta";case"vp8":return 0===(1&i[0])?"key":"delta";case"vp9":{const e=new Bt(i);if(2!==e.readBits(2))return null;const t=e.readBits(1);3===(e.readBits(1)<<1)+t&&e.skipBits(1);if(e.readBits(1))return null;return 0===e.readBits(1)?"key":"delta"}case"av1":{let e=!1;for(const{type:t,data:r}of ki(i))if(1===t){const t=new Bt(r);t.skipBits(4),e=!!t.readBits(1)}else if(3===t||6===t||7===t){if(e)return"key";const t=new Bt(r);if(t.readBits(1))return null;return 0===t.readBits(2)?"key":"delta"}return null}case"prores":return"key";default:Oe(e),oe(!1)}};var Si,Pi;(Pi=Si||(Si={}))[Pi.STREAMINFO=0]="STREAMINFO",Pi[Pi.VORBIS_COMMENT=4]="VORBIS_COMMENT",Pi[Pi.PICTURE=6]="PICTURE";const Ii=(e,t)=>{var i,r;const n=me(e);let s=0;const a=n.getUint32(s,!0);s+=4;const o=pe.decode(e.subarray(s,s+a));s+=a,a>0&&(null!=t.raw||(t.raw={}),null!=(i=t.raw).vendor||(i.vendor=o));const l=n.getUint32(s,!0);s+=4;for(let c=0;c<l;c++){const i=n.getUint32(s,!0);s+=4;const a=pe.decode(e.subarray(s,s+i));s+=i;const o=a.indexOf("=");if(-1===o)continue;const l=a.slice(0,o).toUpperCase(),c=a.slice(o+1);switch(null!=t.raw||(t.raw={}),Array.isArray(t.raw[l])?t.raw[l]=[...t.raw[l],c]:"string"===typeof t.raw[l]?t.raw[l]=[t.raw[l],c]:null!=(r=t.raw)[l]||(r[l]=c),l){case"TITLE":null!=t.title||(t.title=c);break;case"DESCRIPTION":null!=t.description||(t.description=c);break;case"ARTIST":null!=t.artist||(t.artist=c);break;case"ALBUM":null!=t.album||(t.album=c);break;case"ALBUMARTIST":null!=t.albumArtist||(t.albumArtist=c);break;case"COMMENT":null!=t.comment||(t.comment=c);break;case"LYRICS":null!=t.lyrics||(t.lyrics=c);break;case"TRACKNUMBER":{const e=c.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=t.trackNumber||(t.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.tracksTotal||(t.tracksTotal=r))}break;case"TRACKTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.tracksTotal||(t.tracksTotal=e))}break;case"DISCNUMBER":{const e=c.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=t.discNumber||(t.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.discsTotal||(t.discsTotal=r))}break;case"DISCTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.discsTotal||(t.discsTotal=e))}break;case"DATE":{const e=new Date(c);Number.isNaN(e.getTime())||null!=t.date||(t.date=e)}break;case"GENRE":null!=t.genre||(t.genre=c);break;case"METADATA_BLOCK_PICTURE":{const e=ht(c),i=me(e),r=i.getUint32(0,!1),n=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+n)),a=i.getUint32(8+n,!1),o=pe.decode(e.subarray(12+n,12+n+a)),l=i.getUint32(n+a+28),u=e.subarray(n+a+32,n+a+32+l);null!=t.images||(t.images=[]),t.images.push({data:u,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},xi=[2,1,2,3,3,4,4,5],Ci=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new Bt(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),n=t.readBits(5);if(n>8)return null;const s=t.readBits(3),a=t.readBits(3);0!==(1&a)&&1!==a&&t.skipBits(2),0!==(4&a)&&t.skipBits(2),2===a&&t.skipBits(2);return{fscod:i,bsid:n,bsmod:s,acmod:a,lfeon:t.readBits(1),bitRateCode:Math.floor(r/2)}},Bi=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,576,384,418,576,448,486,672,448,488,672,512,556,768,512,558,768,640,696,960,640,698,960,768,834,1152,768,836,1152,896,974,1344,896,976,1344,1024,1114,1536,1024,1116,1536,1280,1392,1920,1280,1394,1920,1536,1670,2304,1536,1672,2304,1792,1950,2688,1792,1952,2688,2048,2228,3072,2048,2230,3072,2304,2506,3456,2304,2508,3456,2560,2786,3840,2560,2788,3840],Ei=[1,2,3,6],_i=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new Bt(e);t.skipBits(16);const i=t.readBits(2);if(t.skipBits(3),0!==i&&2!==i)return null;const r=t.readBits(11),n=t.readBits(2);let s,a=0;3===n?(a=t.readBits(2),s=3):s=t.readBits(2);const o=t.readBits(3),l=t.readBits(1),c=t.readBits(5);if(c<11||c>16)return null;const u=Ei[s];let d;d=n<3?Mt[n]/1e3:Dt[a]/1e3;return{dataRate:Math.round((r+1)*d/(16*u)),substreams:[{fscod:n,fscod2:a,bsid:c,bsmod:0,acmod:o,lfeon:l,numDepSub:0,chanLoc:0}]}},Ri=e=>{const t=e.substreams[0];return oe(t),t.fscod<3?Mt[t.fscod]:null!==t.fscod2&&t.fscod2<3?Dt[t.fscod2]:null},Fi=e=>{const t=e.substreams[0];oe(t);let i=xi[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let r=0;r<9;r++)t.chanLoc&1<<8-r&&(i+=e[r])}return 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available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){var i;if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const r=new Uint8Array(e.byteLength);return e.copyTo(r),new Tr(r,e.type,e.timestamp/1e6,(null!=(i=e.duration)?i:0)/1e6,void 0,void 0,t)}clone(e){var t,i,r,n,s,a;if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==(null==e?void 0:e.data)&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==(null==e?void 0:e.type)&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==(null==e?void 0:e.timestamp)&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==(null==e?void 0:e.duration)&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sequenceNumber)&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sideData)&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new Tr(null!=(t=null==e?void 0:e.data)?t:this.data,null!=(i=null==e?void 0:e.type)?i:this.type,null!=(r=null==e?void 0:e.timestamp)?r:this.timestamp,null!=(n=null==e?void 0:e.duration)?n:this.duration,null!=(s=null==e?void 0:e.sequenceNumber)?s:this.sequenceNumber,this.byteLength,null!=(a=null==e?void 0:e.sideData)?a:this.sideData)}}const vr=e=>{const t=me(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const n=Be(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;t<r;t++)s.push(Be(e.subarray(i,i+16))),i+=16}}const a=t.getUint32(i);return i+=4,{systemId:n,keyIds:s,data:e.slice(i,i+a)}},wr=(e,t)=>e.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i<e.length;i++)if(e[i]!==t[i])return!1;return!0})(e.data,t.data),Sr=e=>{let t=Cl(e);const i=Nl(e,4);let r=8;1===t&&(t=Rl(e),r=16);const n=t-r;return n<0?null:{name:i,totalSize:t,headerSize:r,contentSize:n}},Pr=e=>El(e)/65536,Ir=e=>El(e)/1073741824,xr=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=vl(e);if(t|=127&i,0===(128&i))break}return t},Cr=e=>{let t=Sl(e);return e.skip(2),t=Math.min(t,e.remainingLength),pe.decode(Tl(e,t))},Br=e=>{const t=Sr(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=Cl(e);e.skip(4);const r=Tl(e,t.contentSize-8);switch(i){case 1:return pe.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new It(r,"image/jpeg");case 14:return new It(r,"image/png");case 27:return new It(r,"image/bmp");default:return r}},Er=16,_r=new Uint32Array(256),Rr=new Uint32Array(256),Fr=new Uint32Array(256),Ar=new Uint32Array(256),Mr=new Uint32Array(256),Dr=new Uint32Array(256),Nr=new Uint32Array(10);let Or=!1;class Lr{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Er/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Er),this.out=new Uint8Array(Er),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){oe(16===e.byteLength),oe(16===t.byteLength),Or||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,a=1;s<256;s++)i[s]=a,t[a]=s,a=a^a<<1^(128&a?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let n=r^r<<1^r<<2^r<<3^r<<4;n=n>>>8^255&n^99,e[s]=n}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);_r[s]=t<<24|t<<16|t<<8|t,Dr[s]=i<<24|i<<16|i<<8|i;const n=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);Rr[s]=n,Fr[s]=n>>>8|n<<24,Ar[s]=n>>>16|n<<16,Mr[s]=n>>>24|n<<8}let n=1;for(let s=0;s<10;s++)Nr[s]=n<<24,n=n<<1^(128&n?283:0);Or=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let n=4;n<44;n+=4){const e=this.roundkey[n-1];this.roundkey[n]=this.roundkey[n-4]^4278190080&_r[e>>>16&255]^16711680&_r[e>>>8&255]^65280&_r[e>>>0&255]^255&_r[e>>>24&255]^Nr[n/4-1],this.roundkey[n+1]=this.roundkey[n-3]^this.roundkey[n],this.roundkey[n+2]=this.roundkey[n-2]^this.roundkey[n+1],this.roundkey[n+3]=this.roundkey[n-1]^this.roundkey[n+2]}for(let n=0,s=40;n<s;n+=4,s-=4)for(let e=0;e<4;e++){const t=this.roundkey[n+e];this.roundkey[n+e]=this.roundkey[s+e],this.roundkey[s+e]=t}for(let n=4;n<40;n+=4)for(let e=0;e<4;e++){const t=this.roundkey[n+e];this.roundkey[n+e]=Rr[255&_r[t>>>24&255]]^Fr[255&_r[t>>>16&255]]^Ar[255&_r[t>>>8&255]]^Mr[255&_r[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const n=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),a=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let l,c,u,d;for(let g=1;g<10;g++){const n=4*g;l=Rr[e>>>24]^Fr[r>>>16&255]^Ar[i>>>8&255]^Mr[255&t]^this.roundkey[n],c=Rr[t>>>24]^Fr[e>>>16&255]^Ar[r>>>8&255]^Mr[255&i]^this.roundkey[n+1],u=Rr[i>>>24]^Fr[t>>>16&255]^Ar[e>>>8&255]^Mr[255&r]^this.roundkey[n+2],d=Rr[r>>>24]^Fr[i>>>16&255]^Ar[t>>>8&255]^Mr[255&e]^this.roundkey[n+3],e=l,t=c,i=u,r=d}const h=4278190080&Dr[e>>>24&255]^16711680&Dr[r>>>16&255]^65280&Dr[i>>>8&255]^255&Dr[t>>>0&255]^this.roundkey[40],f=4278190080&Dr[t>>>24&255]^16711680&Dr[e>>>16&255]^65280&Dr[r>>>8&255]^255&Dr[i>>>0&255]^this.roundkey[41],m=4278190080&Dr[i>>>24&255]^16711680&Dr[t>>>16&255]^65280&Dr[e>>>8&255]^255&Dr[r>>>0&255]^this.roundkey[42],p=4278190080&Dr[r>>>24&255]^16711680&Dr[i>>>16&255]^65280&Dr[t>>>8&255]^255&Dr[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,h^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=n,this.iv[1]=s,this.iv[2]=a,this.iv[3]=o}}class zr extends yr{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.tracks.map(e=>e.trackBacking)})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)}),hasAudio:this.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)}),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(ct(r)&&(r=yield r),!r)break;const n=e,s=Sr(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=Nl(r,4);this.isQuickTime="qt "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(ct(e)&&(e=yield e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>n+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');yield this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=n+s.totalSize}if(!i&&this.input._initInput&&(yield this.copyMetadataFromInitInput(this.input._initInput)),t){oe(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);ct(e)&&(e=yield e),oe(e);const t=Cl(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(ct(e)&&(e=yield e),e){const t=Sr(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);ct(i)&&(i=yield i),i&&this.readContiguousBoxes(i)}}}}}))()}copyMetadataFromInitInput(e){return Y(this,null,function*(){const t=yield e._getDemuxer();if(t.constructor!==zr)throw new Error("Init input must match the input's format.");yield t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const e of t.tracks){const t={id:e.id,demuxer:this,trackBacking:null,disposition:e.disposition,timescale:e.timescale,durationInMediaTimescale:e.durationInMediaTimescale,durationInMovieTimescale:e.durationInMovieTimescale,rotation:e.rotation,internalCodecId:e.internalCodecId,name:e.name,languageCode:e.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:e.editListPreviousSegmentDurations,editListOffset:e.editListOffset,encryptionInfo:e.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:e.info};if(e.trackBacking)if(oe(t.info),"video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new qr(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new Wr(e),this.tracks.push(t)}}})}getSampleTableForTrack(e){var t,i;if(e.sampleTable)return e.sampleTable;const r={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=r,null===e.sampleTableByteOffset)return r;oe(this.moovSlice);const n=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(n),this.currentTrack=null;if("audio"===(null==(t=e.info)?void 0:t.type)&&e.info.codec&&Xi.includes(e.info.codec)&&0===r.sampleCompositionTimeOffsets.length){oe("audio"===(null==(i=e.info)?void 0:i.type));const t=ar(e.info.codec),n=[],s=[];for(let i=0;i<r.sampleToChunk.length;i++){const a=r.sampleToChunk[i],o=r.sampleToChunk[i+1],l=(o?o.startChunkIndex:r.chunkOffsets.length)-a.startChunkIndex;for(let i=0;i<l;i++){const o=a.startSampleIndex+i*a.samplesPerChunk,l=o+a.samplesPerChunk,c=Re(r.sampleTimingEntries,o,e=>e.startIndex),u=r.sampleTimingEntries[c],d=Re(r.sampleTimingEntries,l,e=>e.startIndex),h=r.sampleTimingEntries[d],f=u.startDecodeTimestamp+(o-u.startIndex)*u.delta,m=h.startDecodeTimestamp+(l-h.startIndex)*h.delta-f,p=ce(n);p&&p.delta===m?p.count++:n.push({startIndex:a.startChunkIndex+i,startDecodeTimestamp:f,count:1,delta:m});const g=a.samplesPerChunk*t.sampleSize*e.info.numberOfChannels;s.push(g)}a.startSampleIndex=a.startChunkIndex,a.samplesPerChunk=1}r.sampleTimingEntries=n,r.sampleSizes=s}if(r.sampleCompositionTimeOffsets.length>0){r.presentationTimestamps=[];for(const e of r.sampleTimingEntries)for(let t=0;t<e.count;t++)r.presentationTimestamps.push({presentationTimestamp:e.startDecodeTimestamp+t*e.delta,sampleIndex:e.startIndex+t});for(const e of r.sampleCompositionTimeOffsets)for(let t=0;t<e.count;t++){const i=e.startIndex+t,n=r.presentationTimestamps[i];n&&(n.presentationTimestamp+=e.offset)}r.presentationTimestamps.sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp),r.presentationTimestampIndexMap=Array(r.presentationTimestamps.length).fill(-1);for(let e=0;e<r.presentationTimestamps.length;e++)r.presentationTimestampIndexMap[r.presentationTimestamps[e].sampleIndex]=e}return r}readFragment(e){return Y(this,null,function*(){var t;if((null==(t=this.lastReadFragment)?void 0:t.moofOffset)===e)return this.lastReadFragment;let i=this.reader.requestSliceRange(e,8,16);ct(i)&&(i=yield i),oe(i);const r=Sr(i);oe("moof"===(null==r?void 0:r.name));let n=this.reader.requestSlice(e,r.totalSize);ct(n)&&(n=yield n),oe(n),this.traverseBox(n);const s=this.lastReadFragment;oe(s&&s.moofOffset===e);for(const[,e]of s.trackData){const t=e.track,{fragmentPositionCache:i}=t;if(!e.startTimestampIsFinal){const r=t.fragmentLookupTable.find(e=>e.moofOffset===s.moofOffset);if(r)Xr(e,r.timestamp);else{const t=Re(i,s.moofOffset-1,e=>e.moofOffset);if(-1!==t){const r=i[t];Xr(e,r.endTimestamp)}}e.startTimestampIsFinal=!0}const r=Re(i,e.startTimestamp,e=>e.startTimestamp);if(-1!==r&&i[r].moofOffset===s.moofOffset||i.splice(r+1,0,{moofOffset:s.moofOffset,startTimestamp:e.startTimestamp,endTimestamp:e.endTimestamp}),e.encryptionAuxInfo&&t.encryptionInfo){const i=yield Yr(this.reader,t.encryptionInfo,e.encryptionAuxInfo);for(let t=0;t<Math.min(e.samples.length,i.length);t++){const r=i[t];e.samples[t].encryption=r}}}return s})}readContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){if(!this.traverseBox(e))break}}*iterateContiguousBoxes(e){const t=e.filePos;for(;e.filePos-t<=e.length-8;){const t=e.filePos,i=Sr(e);if(!i)break;yield{boxInfo:i,slice:e},e.filePos=t+i.totalSize}}traverseBox(e){var t,i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F,A,M,D,N,O,L,z,U,q,W,j,K,X,$,G,Q,Y,J,Z,ee,te,ie;const re=e.filePos,ne=Sr(e);if(!ne)return!1;const se=e.filePos,ae=re+ne.totalSize;switch(ne.name){case"mdia":case"minf":case"dinf":case"mfra":case"edts":case"sinf":case"schi":case"wave":this.readContiguousBoxes(e.slice(se,ne.contentSize));break;case"mvhd":{const t=vl(e);e.skip(3),1===t?(e.skip(16),this.movieTimescale=Cl(e),this.movieDurationInTimescale=Rl(e)):(e.skip(8),this.movieTimescale=Cl(e),this.movieDurationInTimescale=Cl(e))}break;case"trak":{const t={id:-1,demuxer:this,trackBacking:null,disposition:V(H({},Ct),{primary:!1}),info:null,timescale:-1,durationInMovieTimescale:-1,durationInMediaTimescale:-1,rotation:0,internalCodecId:null,name:null,languageCode:We,sampleTableByteOffset:-1,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:0,editListOffset:0,encryptionInfo:null,encryptionAuxInfo:null,frmaCodecString:null};if(this.currentTrack=t,this.readContiguousBoxes(e.slice(se,ne.contentSize)),-1!==t.id&&-1!==t.timescale&&null!==t.info)if("video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new qr(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new Wr(e),this.tracks.push(t)}this.currentTrack=null}break;case"tkhd":{const t=this.currentTrack;if(!t)break;const i=vl(e),r=!!(1&Pl(e));if(t.disposition.default=r,0===i)e.skip(8),t.id=Cl(e),e.skip(4),t.durationInMovieTimescale=Cl(e);else{if(1!==i)throw new Error(`Incorrect track header version ${i}.`);e.skip(16),t.id=Cl(e),e.skip(4),t.durationInMovieTimescale=Rl(e)}e.skip(16);const n=[Pr(e),Pr(e),Ir(e),Pr(e),Pr(e),Ir(e),Pr(e),Pr(e),Ir(e)],s=le(Ve($r(n),90));oe(0===s||90===s||180===s||270===s),t.rotation=s}break;case"elst":{const t=this.currentTrack;if(!t)break;const i=vl(e);e.skip(3);let r=!1,n=0;const s=Cl(e);for(let a=0;a<s;a++){const s=1===i?Rl(e):Cl(e),a=1===i?Fl(e):El(e),o=Pr(e);if(r){Pt._warn("Unsupported edit list: multiple edits are not currently supported. Only using first edit.");break}if(-1!==a){if(1!==o){Pt._warn("Unsupported edit list entry: media rate must be 1.");break}t.editListPreviousSegmentDurations=n,t.editListOffset=a,r=!0}else n+=s}}break;case"mdhd":{const t=this.currentTrack;if(!t)break;const i=vl(e);e.skip(3),0===i?(e.skip(8),t.timescale=Cl(e),t.durationInMediaTimescale=Cl(e)):1===i&&(e.skip(16),t.timescale=Cl(e),t.durationInMediaTimescale=Rl(e));let r=Sl(e);if(r>0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;Ge(t.languageCode)||(t.languageCode=We)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=Nl(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:H({},Pe),avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=re,this.readContiguousBoxes(e.slice(se,ne.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=vl(e);e.skip(3);const r=Cl(e);for(let n=0;n<r;n++){const r=e.filePos,n=Sr(e);if(!n)break;t.internalCodecId=n.name;const s=n.name.toLowerCase();if("video"===t.info.type){e.skip(24),t.info.width=Sl(e),t.info.height=Sl(e),t.info.squarePixelWidth=t.info.width,t.info.squarePixelHeight=t.info.height,e.skip(50),t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const i="encv"===s?t.frmaCodecString:s;t.frmaCodecString=null,"avc1"===i||"avc3"===i?(t.info.codec="avc",t.info.avcType="avc1"===i?1:3):"hvc1"===i||"hev1"===i?t.info.codec="hevc":"vp08"===i?t.info.codec="vp8":"vp09"===i?t.info.codec="vp9":"av01"===i?t.info.codec="av1":Zi.includes(s)?(t.info.codec="prores",t.info.proresFormat=s):null===i?Pt._warn("Unknown encrypted video codec due to missing frma box."):Pt._warn(`Unsupported video codec (sample entry type '${n.name}').`)}else{e.skip(8);const a=Sl(e);e.skip(6);let o=Sl(e),l=Sl(e);e.skip(4);let c=Cl(e)/65536,u=null;0===i&&a>0&&(1===a?(e.skip(4),l=8*Cl(e),e.skip(8)):2===a&&(e.skip(4),c=Dl(e),o=Cl(e),e.skip(4),l=Cl(e),u=Cl(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=c,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const d="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===d);else if("opus"===d)t.info.codec="opus",t.info.sampleRate=nr;else if("flac"===d)t.info.codec="flac";else if("ulaw"===d)t.info.codec="ulaw";else if("alaw"===d)t.info.codec="alaw";else if("ac-3"===d)t.info.codec="ac3";else if("ec-3"===d)t.info.codec="eac3";else if(er.includes(d))t.info.codec="dts",t.info.dtsFormat=d;else if("twos"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(Pt._warn(`Unsupported sample size ${l} for codec 'twos'.`),t.info.codec=null);else if("sowt"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec="pcm-s16":(Pt._warn(`Unsupported sample size ${l} for codec 'sowt'.`),t.info.codec=null);else if("raw "===d)t.info.codec="pcm-u8";else if("in24"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(Pt._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(Pt._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(Pt._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(Pt._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=l+7>>3,i=Boolean(1&u),r=Boolean(2&u),n=4&u?-1:0;l>0&&l<=64&&(i?32===l&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):n&1<<e-1?1===e?t.info.codec="pcm-s8":2===e?t.info.codec=r?"pcm-s16be":"pcm-s16":3===e?t.info.codec=r?"pcm-s24be":"pcm-s24":4===e&&(t.info.codec=r?"pcm-s32be":"pcm-s32"):1===e&&(t.info.codec="pcm-u8")),null===t.info.codec&&Pt._warn("Unsupported PCM format.")}else null===d?Pt._warn("Unknown encrypted audio codec due to missing frma box."):Pt._warn(`Unsupported audio codec (sample entry type '${n.name}').`)}e.filePos=r+n.totalSize}}break;case"frma":{const t=this.currentTrack;if(!t)break;const i=Nl(e,4).toLowerCase();t.frmaCodecString=i}break;case"schm":{const t=this.currentTrack;if(!t)break;e.skip(4);const i=Nl(e,4);"cenc"===i||"cens"===i||"cbcs"===i?t.encryptionInfo={scheme:i,defaultKid:null,defaultIsProtected:null,defaultPerSampleIvSize:null,defaultConstantIv:null,defaultCryptByteBlock:null,defaultSkipByteBlock:null}:Pt._warn(`Unsupported encryption scheme '${i}'.`)}break;case"tenc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=vl(e);e.skip(3),e.skip(1);const r=vl(e);if(i>0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==vl(e),t.encryptionInfo.defaultPerSampleIvSize=vl(e),t.encryptionInfo.defaultKid=Be(Tl(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=vl(e),r=new Uint8Array(16);r.set(Tl(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(oe(t.info),0===ne.contentSize)break;t.info.codecDescription=Tl(e,ne.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(oe(t.info),0===ne.contentSize)break;t.info.codecDescription=Tl(e,ne.contentSize)}break;case"vpcC":{const i=this.currentTrack;if(!i)break;oe("video"===(null==(t=i.info)?void 0:t.type)),e.skip(4);const r=vl(e),n=vl(e),s=vl(e),a=s>>4,o=s>>1&7,l=1&s,c=vl(e),u=vl(e),d=vl(e);i.info.vp9CodecInfo={profile:r,level:n,bitDepth:a,chromaSubsampling:o,videoFullRangeFlag:l,colourPrimaries:c,transferCharacteristics:u,matrixCoefficients:d}}break;case"av1C":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(i=t.info)?void 0:i.type)),e.skip(1);const o=vl(e),l=o>>5,c=31&o,u=vl(e),d=u>>7,h=u>>6&1,f=u>>4&1,m=u>>3&1,p=u>>2&1,g=3&u,k=2===l&&h?u>>5&1?12:10:h?10:8;e.skip(1);const y=Tl(e,ne.contentSize-4),b=yi(y);t.info.av1CodecInfo={profile:l,level:c,tier:d,bitDepth:k,monochrome:f,chromaSubsamplingX:m,chromaSubsamplingY:p,chromaSamplePosition:g,videoFullRangeFlag:null!=(r=null==b?void 0:b.videoFullRangeFlag)?r:0,colourPrimaries:null!=(n=null==b?void 0:b.colourPrimaries)?n:2,transferCharacteristics:null!=(s=null==b?void 0:b.transferCharacteristics)?s:2,matrixCoefficients:null!=(a=null==b?void 0:b.matrixCoefficients)?a:2}}break;case"colr":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(o=t.info)?void 0:o.type));const i=Nl(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=Sl(e),n=Sl(e),s=Sl(e);let a;"nclx"===i&&(a=Boolean(128&vl(e))),t.info.colorSpace={primaries:ye[r],transfer:Te[n],matrix:we[s],fullRange:a}}break;case"pasp":{const t=this.currentTrack;if(!t)break;oe("video"===(null==(l=t.info)?void 0:l.type));const i=Cl(e),r=Cl(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==(null==(c=t.info)?void 0:c.type))break;e.skip(4);oe(3===vl(e)),xr(e),e.skip(2);const i=vl(e),r=0!==(64&i),n=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=vl(e);e.skip(t)}n&&e.skip(2);oe(4===vl(e));const s=xr(e),a=e.filePos,o=vl(e);if(64===o||103===o?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===o,objectType:null}):105===o||107===o?t.info.codec="mp3":221===o?t.info.codec="vorbis":169===o?t.info.codec="dts":Pt._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-a){oe(5===vl(e));const i=xr(e);if(t.info.codecDescription=Tl(e,i),"aac"===t.info.codec){const e=Rt(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(u=t.info)?void 0:u.type)),t.info.pcmLittleEndian=!!(255&Sl(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(d=t.info)?void 0:d.type)),e.skip(4);const i=vl(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=vl(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(h=t.info)?void 0:h.type)),e.skip(1);const i=vl(e),r=Sl(e),n=Cl(e),s=Il(e),a=vl(e);let o;o=0!==a?Tl(e,2+i):new Uint8Array(0);const l=new Uint8Array(19+o.byteLength),c=new DataView(l.buffer);c.setUint32(0,1332770163,!1),c.setUint32(4,1214603620,!1),c.setUint8(8,1),c.setUint8(9,i),c.setUint16(10,r,!0),c.setUint32(12,n,!0),c.setInt16(16,s,!0),c.setUint8(18,a),l.set(o,19),t.info.codecDescription=l,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(f=t.info)?void 0:f.type)),e.skip(4);const i=127,r=128,n=e.filePos;for(;e.filePos<ae;){const n=vl(e),s=Pl(e);if((n&i)===Si.STREAMINFO){e.skip(10);const i=Cl(e),r=i>>>12,n=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=n,e.skip(20)}else e.skip(s);if(n&r)break}const s=e.filePos;e.filePos=n;const a=Tl(e,s-n),o=new Uint8Array(4+a.byteLength);new DataView(o.buffer).setUint32(0,1716281667,!1),o.set(a,4),t.info.codecDescription=o}break;case"dac3":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(m=t.info)?void 0:m.type));const i=Tl(e,3),r=new Bt(i),n=r.readBits(2);r.skipBits(8);const s=r.readBits(3),a=r.readBits(1);n<3&&(t.info.sampleRate=Mt[n]),t.info.numberOfChannels=xi[s]+a}break;case"dec3":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(p=t.info)?void 0:p.type));const i=(e=>{if(e.length<2)return null;const t=new Bt(e),i=t.readBits(13),r=t.readBits(3),n=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),a=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let l=0;o>0?l=t.readBits(9):t.skipBits(1),n.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:a,numDepSub:o,chanLoc:l})}return 0===n.length?null:{dataRate:i,substreams:n}})(Tl(e,ne.contentSize));if(!i){Pt._warn("Invalid dec3 box contents, ignoring.");break}const r=Ri(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=Fi(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;oe("audio"===(null==(g=t.info)?void 0:g.type));const i=(e=>{if(e.length<20)return null;const t=me(e),i=t.getUint32(0);if(0===i)return null;const r=new Bt(e);r.seekToByte(13);const n=r.readBits(2);r.skipBits(5);const s=r.readBits(1),a=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let l=null;return 0!==o?l=ji(o):a<Ni.length&&(l=Ni[a]+s),{sampleRate:i,maxBitrate:t.getUint32(4),avgBitrate:t.getUint32(8),pcmSampleDepth:e[12],sampleCount:Ui[n],channelLayout:o,numberOfChannels:l}})(Tl(e,Math.min(ne.contentSize,20)));if(!i){Pt._warn("Invalid ddts box contents, ignoring.");break}t.info.sampleRate=i.sampleRate,null!==i.numberOfChannels&&(t.info.numberOfChannels=i.numberOfChannels)}break;case"stts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);let r=0,n=0;for(let s=0;s<i;s++){const i=Cl(e),s=Cl(e);t.sampleTable.sampleTimingEntries.push({startIndex:r,startDecodeTimestamp:n,count:i,delta:s}),r+=i,n+=i*s}}break;case"ctts":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);let r=0;for(let n=0;n<i;n++){const i=Cl(e),n=El(e);t.sampleTable.sampleCompositionTimeOffsets.push({startIndex:r,count:i,offset:n}),r+=i}}break;case"stsz":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e),r=Cl(e);if(0===i)for(let n=0;n<r;n++){const i=Cl(e);t.sampleTable.sampleSizes.push(i)}else t.sampleTable.sampleSizes.push(i)}break;case"stz2":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),e.skip(3);const i=vl(e),r=Cl(e),n=Tl(e,Math.ceil(r*i/8)),s=new Bt(n);for(let e=0;e<r;e++){const e=s.readBits(i);t.sampleTable.sampleSizes.push(e)}}break;case"stss":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4),t.sampleTable.keySampleIndices=[];const i=Cl(e);for(let r=0;r<i;r++){const i=Cl(e)-1;t.sampleTable.keySampleIndices.push(i)}0!==t.sampleTable.keySampleIndices[0]&&t.sampleTable.keySampleIndices.unshift(0)}break;case"stsc":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let n=0;n<i;n++){const i=Cl(e)-1,r=Cl(e),n=Cl(e);t.sampleTable.sampleToChunk.push({startSampleIndex:-1,startChunkIndex:i,samplesPerChunk:r,sampleDescriptionIndex:n})}let r=0;for(let e=0;e<t.sampleTable.sampleToChunk.length;e++)if(t.sampleTable.sampleToChunk[e].startSampleIndex=r,e<t.sampleTable.sampleToChunk.length-1){r+=(t.sampleTable.sampleToChunk[e+1].startChunkIndex-t.sampleTable.sampleToChunk[e].startChunkIndex)*t.sampleTable.sampleToChunk[e].samplesPerChunk}}break;case"stco":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let r=0;r<i;r++){const i=Cl(e);t.sampleTable.chunkOffsets.push(i)}}break;case"co64":{const t=this.currentTrack;if(!t)break;if(!t.sampleTable)break;e.skip(4);const i=Cl(e);for(let r=0;r<i;r++){const i=Rl(e);t.sampleTable.chunkOffsets.push(i)}}break;case"mvex":this.isFragmented=!0,this.readContiguousBoxes(e.slice(se,ne.contentSize));break;case"mehd":{const t=vl(e);e.skip(3);const i=1===t?Rl(e):Cl(e);this.movieDurationInTimescale=i}break;case"trex":{e.skip(4);const t=Cl(e),i=Cl(e),r=Cl(e),n=Cl(e),s=Cl(e);this.fragmentTrackDefaults.push({trackId:t,defaultSampleDescriptionIndex:i,defaultSampleDuration:r,defaultSampleSize:n,defaultSampleFlags:s})}break;case"tfra":{const t=vl(e);e.skip(3);const i=Cl(e),r=this.tracks.find(e=>e.id===i);if(!r)break;const n=Cl(e),s=(12&n)>>2,a=3&n,o=[vl,Sl,Pl,Cl],l=o[(48&n)>>4],c=o[s],u=o[a],d=Cl(e);for(let h=0;h<d;h++){const i=1===t?Rl(e):Cl(e),n=1===t?Rl(e):Cl(e);l(e),c(e),u(e),r.fragmentLookupTable.push({timestamp:i,moofOffset:n})}r.fragmentLookupTable.sort((e,t)=>e.timestamp-t.timestamp);for(let e=0;e<r.fragmentLookupTable.length-1;e++){const t=r.fragmentLookupTable[e],i=r.fragmentLookupTable[e+1];t.timestamp===i.timestamp&&(r.fragmentLookupTable.splice(e+1,1),e--)}}break;case"moof":this.currentFragment={moofOffset:re,moofSize:ne.totalSize,implicitBaseDataOffset:re,trackData:new Map,psshBoxes:[]},this.readContiguousBoxes(e.slice(se,ne.contentSize)),this.lastReadFragment=this.currentFragment,this.currentFragment=null;break;case"traf":if(oe(this.currentFragment),this.readContiguousBoxes(e.slice(se,ne.contentSize)),this.currentTrack){const e=this.currentFragment.trackData.get(this.currentTrack.id);e:if(e){if(0===e.samples.length){this.currentFragment.trackData.delete(this.currentTrack.id);break e}e.presentationTimestamps=e.samples.map((e,t)=>({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let n=0;n<e.presentationTimestamps.length;n++){const t=e.presentationTimestamps[n],i=e.samples[t.sampleIndex];if(null===e.firstKeyFrameTimestamp&&i.isKeyFrame&&(e.firstKeyFrameTimestamp=i.presentationTimestamp),n<e.presentationTimestamps.length-1){const r=e.presentationTimestamps[n+1].presentationTimestamp-t.presentationTimestamp;i.duration=r}}const t=e.samples[e.presentationTimestamps[0].sampleIndex],i=e.samples[ce(e.presentationTimestamps).sampleIndex];e.startTimestamp=t.presentationTimestamp,e.endTimestamp=i.presentationTimestamp+i.duration;const{currentFragmentState:r}=this.currentTrack;oe(r),null!==r.startTimestamp&&(Xr(e,r.startTimestamp),e.startTimestampIsFinal=!0),r.encryptionAuxInfo&&!e.samples[0].encryption&&(e.encryptionAuxInfo=r.encryptionAuxInfo)}this.currentTrack.currentFragmentState=null,this.currentTrack=null}break;case"pssh":{if(null==(k=this.input._formatOptions.isobmff)?void 0:k._suppressPsshParsing)break;const t=vr(Tl(e,ne.contentSize));this.currentFragment?this.currentFragment.psshBoxes.push(t):this.currentTrack||this.psshBoxes.push(t)}break;case"tfhd":{oe(this.currentFragment),e.skip(1);const t=Pl(e),i=Boolean(1&t),r=Boolean(2&t),n=Boolean(8&t),s=Boolean(16&t),a=Boolean(32&t),o=Boolean(65536&t),l=Boolean(131072&t),c=Cl(e),u=this.tracks.find(e=>e.id===c);if(!u)break;const d=this.fragmentTrackDefaults.find(e=>e.trackId===c);this.currentTrack=u,u.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:null!=(y=null==d?void 0:d.defaultSampleDescriptionIndex)?y:null,defaultSampleDuration:null!=(b=null==d?void 0:d.defaultSampleDuration)?b:null,defaultSampleSize:null!=(T=null==d?void 0:d.defaultSampleSize)?T:null,defaultSampleFlags:null!=(v=null==d?void 0:d.defaultSampleFlags)?v:null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=Rl(e):l&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=Cl(e)),n&&(u.currentFragmentState.defaultSampleDuration=Cl(e)),s&&(u.currentFragmentState.defaultSampleSize=Cl(e)),a&&(u.currentFragmentState.defaultSampleFlags=Cl(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;oe(t.currentFragmentState);const i=vl(e);e.skip(3);const r=0===i?Cl(e):Rl(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;oe(this.currentFragment),oe(t.currentFragmentState);const i=vl(e),r=Pl(e),n=Boolean(1&r),s=Boolean(4&r),a=Boolean(256&r),o=Boolean(512&r),l=Boolean(1024&r),c=Boolean(2048&r),u=Cl(e);let d=null;n&&(d=El(e));let h,f=null;s&&(f=Cl(e)),this.currentFragment.trackData.has(t.id)?(h=this.currentFragment.trackData.get(t.id),null!==d&&(h.currentOffset=t.currentFragmentState.baseDataOffset+d)):(h={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(null!=d?d:0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,h));for(let m=0;m<u;m++){let r,n,s;a?r=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleDuration),r=t.currentFragmentState.defaultSampleDuration),o?n=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleSize),n=t.currentFragmentState.defaultSampleSize),l?s=Cl(e):(oe(null!==t.currentFragmentState.defaultSampleFlags),s=t.currentFragmentState.defaultSampleFlags),0===m&&null!==f&&(s=f);let u=0;c&&(u=0===i?Cl(e):El(e));const d=!(65536&s);h.samples.push({presentationTimestamp:h.currentTimestamp+u,duration:r,byteOffset:h.currentOffset,byteSize:n,isKeyFrame:d,encryption:null}),h.currentOffset+=n,h.currentTimestamp+=r}this.currentFragment.implicitBaseDataOffset=h.currentOffset}break;case"saiz":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;e.skip(1);if(1&Pl(e)){const i=Nl(e,4),r=Cl(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const i=vl(e),r=Cl(e);let n=null;0===i&&r>0&&(n=Tl(e,r));const s=Qr(t);s.defaultSampleInfoSize=i,s.sampleSizes=n,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=vl(e);if(1&Pl(e)){const i=Nl(e,4),r=Cl(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=Cl(e);if(0===r)break;r>1&&Pt._warn("Multiple saio entries are not supported; using the first offset only.");let n=0===i?Cl(e):Number(Rl(e));this.currentFragment&&(n+=this.currentFragment.moofOffset);Qr(t).offset=n}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;oe(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=Pl(e),n=Boolean(2&r),s=Cl(e),a=t.encryptionInfo.defaultPerSampleIvSize;oe(null!==a);for(let o=0;o<Math.min(s,i.samples.length);o++){const r=new Uint8Array(16);a>0?r.set(Tl(e,a),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(n){const t=Sl(e);s=[];for(let i=0;i<t;i++){const t=Sl(e),i=Cl(e);s.push({clearLen:t,protectedLen:i})}}i.samples[o].encryption={iv:r,subsamples:s}}}break;case"udta":{const t=this.iterateContiguousBoxes(e.slice(se,ne.contentSize));for(const{boxInfo:e,slice:i}of t){if("meta"!==e.name&&!this.currentTrack){const t=i.filePos;null!=(w=this.metadataTags).raw||(w.raw={}),"\xa9"===e.name[0]?null!=(S=this.metadataTags.raw)[P=e.name]||(S[P]=Cr(i)):null!=(I=this.metadataTags.raw)[x=e.name]||(I[x]=Tl(i,e.contentSize)),i.filePos=t}switch(e.name){case"meta":i.skip(-e.headerSize),this.traverseBox(i);break;case"\xa9nam":case"name":this.currentTrack?this.currentTrack.name=pe.decode(Tl(i,e.contentSize)):null!=(C=this.metadataTags).title||(C.title=Cr(i));break;case"\xa9des":this.currentTrack||null!=(B=this.metadataTags).description||(B.description=Cr(i));break;case"\xa9ART":this.currentTrack||null!=(E=this.metadataTags).artist||(E.artist=Cr(i));break;case"\xa9alb":this.currentTrack||null!=(_=this.metadataTags).album||(_.album=Cr(i));break;case"albr":this.currentTrack||null!=(R=this.metadataTags).albumArtist||(R.albumArtist=Cr(i));break;case"\xa9gen":this.currentTrack||null!=(F=this.metadataTags).genre||(F.genre=Cr(i));break;case"\xa9day":if(!this.currentTrack){const e=new Date(Cr(i));Number.isNaN(e.getTime())||null!=(A=this.metadataTags).date||(A.date=e)}break;case"\xa9cmt":this.currentTrack||null!=(M=this.metadataTags).comment||(M.comment=Cr(i));break;case"\xa9lyr":this.currentTrack||null!=(D=this.metadataTags).lyrics||(D.lyrics=Cr(i))}}}break;case"meta":{if(this.currentTrack)break;const t=0!==Cl(e);this.currentMetadataKeys=new Map,t?this.readContiguousBoxes(e.slice(se,ne.contentSize)):this.readContiguousBoxes(e.slice(se+4,ne.contentSize-4)),this.currentMetadataKeys=null}break;case"keys":{if(!this.currentMetadataKeys)break;e.skip(4);const t=Cl(e);for(let i=0;i<t;i++){const t=Cl(e);e.skip(4);const r=pe.decode(Tl(e,t-8));this.currentMetadataKeys.set(i+1,r)}}break;case"ilst":{if(!this.currentMetadataKeys)break;const t=this.iterateContiguousBoxes(e.slice(se,ne.contentSize));for(const{boxInfo:e,slice:i}of t){let t=e.name;const r=(t.charCodeAt(0)<<24)+(t.charCodeAt(1)<<16)+(t.charCodeAt(2)<<8)+t.charCodeAt(3);this.currentMetadataKeys.has(r)&&(t=this.currentMetadataKeys.get(r));const n=Br(i);switch(null!=(N=this.metadataTags).raw||(N.raw={}),null!=(O=this.metadataTags.raw)[t]||(O[t]=n),t){case"\xa9nam":case"titl":case"com.apple.quicktime.title":case"title":"string"===typeof n&&(null!=(L=this.metadataTags).title||(L.title=n));break;case"\xa9des":case"desc":case"dscp":case"com.apple.quicktime.description":case"description":"string"===typeof n&&(null!=(z=this.metadataTags).description||(z.description=n));break;case"\xa9ART":case"com.apple.quicktime.artist":case"artist":"string"===typeof n&&(null!=(U=this.metadataTags).artist||(U.artist=n));break;case"\xa9alb":case"albm":case"com.apple.quicktime.album":case"album":"string"===typeof n&&(null!=(q=this.metadataTags).album||(q.album=n));break;case"aART":case"album_artist":"string"===typeof n&&(null!=(W=this.metadataTags).albumArtist||(W.albumArtist=n));break;case"\xa9cmt":case"com.apple.quicktime.comment":case"comment":"string"===typeof n&&(null!=(j=this.metadataTags).comment||(j.comment=n));break;case"\xa9gen":case"gnre":case"com.apple.quicktime.genre":case"genre":"string"===typeof n&&(null!=(K=this.metadataTags).genre||(K.genre=n));break;case"\xa9lyr":case"lyrics":"string"===typeof n&&(null!=(X=this.metadataTags).lyrics||(X.lyrics=n));break;case"\xa9day":case"rldt":case"com.apple.quicktime.creationdate":case"date":if("string"===typeof n){const e=new Date(n);Number.isNaN(e.getTime())||null!=($=this.metadataTags).date||($.date=e)}break;case"covr":case"com.apple.quicktime.artwork":n instanceof It?(null!=(G=this.metadataTags).images||(G.images=[]),this.metadataTags.images.push({data:n.data,kind:"coverFront",mimeType:n.mimeType})):n instanceof Uint8Array&&(null!=(Q=this.metadataTags).images||(Q.images=[]),this.metadataTags.images.push({data:n,kind:"coverFront",mimeType:"image/*"}));break;case"track":if("string"===typeof n){const e=n.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=(Y=this.metadataTags).trackNumber||(Y.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(J=this.metadataTags).tracksTotal||(J.tracksTotal=i))}break;case"trkn":if(n instanceof Uint8Array&&n.length>=6){const e=me(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(Z=this.metadataTags).trackNumber||(Z.trackNumber=t)),i>0&&(null!=(ee=this.metadataTags).tracksTotal||(ee.tracksTotal=i))}break;case"disc":case"disk":if(n instanceof Uint8Array&&n.length>=6){const e=me(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(te=this.metadataTags).discNumber||(te.discNumber=t)),i>0&&(null!=(ie=this.metadataTags).discsTotal||(ie.discsTotal=i))}}}}}return e.filePos=ae,!0}}class Ur{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){var e;const t=this.internalTrack;if(t.durationInMediaTimescale<=0)return null;oe(t.trackBacking);const i=yield t.trackBacking.getFirstPacket({metadataOnly:!0});return(null!=(e=null==i?void 0:i.timestamp)?e:0)+t.durationInMediaTimescale/t.timescale})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getFirstPacket(e){return Y(this,null,function*(){const t=yield this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)})}mapTimestampIntoTimescale(e){return He(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}getPacket(e,t){return Y(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=Hr(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return Gr(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=Re(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.packetToSampleIndex.get(e);if(void 0!==i)return this.fetchPacketForSampleIndex(i+1,t);const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1<t.samples.length)return{sampleIndex:r.sampleIndex+1,correctSampleFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{sampleIndex:0,correctSampleFound:!0}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}getKeyPacket(e,t){return Y(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=Vr(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return Gr(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=Ne(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i<t.endTimestamp}},i,i,t):s})}getNextKeyPacket(e,t){return Y(this,null,function*(){const i=this.packetToSampleIndex.get(e);if(void 0!==i){const e=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=Kr(e,i);return this.fetchPacketForSampleIndex(r,t)}const r=this.packetToFragmentLocation.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");return this.performFragmentedLookup(r.fragment,e=>{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return oe(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}fetchPacketForSampleIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=jr(i,e);if(!r)return null;let n;if(t.metadataOnly)n=br;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(ct(t)&&(t=yield t),!t)return null;if(n=Tl(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=yield Yr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);e<i.length&&(t=i[e])}null!=t||(t=Jr(this.internalTrack.encryptionInfo)),t&&(n=yield Zr(this.internalTrack,t,n,null))}}const s=(r.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,a=r.duration/this.internalTrack.timescale,o=new Tr(n,r.isKeyFrame?"key":"delta",s,a,e,r.sampleSize);return this.packetToSampleIndex.set(o,e),o})}fetchPacketInFragment(e,t,i){return Y(this,null,function*(){var r;if(-1===t)return null;const n=e.trackData.get(this.internalTrack.id).samples[t];let s;if(oe(n),i.metadataOnly)s=br;else{let t=this.internalTrack.demuxer.reader.requestSlice(n.byteOffset,n.byteSize);if(ct(t)&&(t=yield t),!t)return null;if(s=Tl(t,n.byteSize),this.internalTrack.encryptionInfo){const t=null!=(r=n.encryption)?r:Jr(this.internalTrack.encryptionInfo);t&&(s=yield Zr(this.internalTrack,t,s,e))}}const a=(n.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,o=n.duration/this.internalTrack.timescale,l=new Tr(s,n.isKeyFrame?"key":"delta",a,o,e.moofOffset+t,n.byteSize);return this.packetToFragmentLocation.set(l,{fragment:e,sampleIndex:t}),l})}performFragmentedLookup(e,t,i,r,n){return Y(this,null,function*(){var s,a,o;const l=this.internalTrack.demuxer;let c=null,u=null,d=-1;if(e){const{sampleIndex:i,correctSampleFound:r}=t(e);if(r)return this.fetchPacketInFragment(e,i,n);-1!==i&&(u=e,d=i)}const h=Re(this.internalTrack.fragmentLookupTable,i,e=>e.timestamp),f=-1!==h?this.internalTrack.fragmentLookupTable[h]:null,m=Re(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),p=-1!==m?this.internalTrack.fragmentPositionCache[m]:null,g=Math.max(null!=(s=null==f?void 0:f.moofOffset)?s:0,null!=(a=null==p?void 0:p.moofOffset)?a:0)||null;let k;for(e?null===g||e.moofOffset>=g?(k=e.moofOffset+e.moofSize,c=e):k=g:k=null!=g?g:0;;){if(c){const e=c.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=l.reader.requestSliceRange(k,8,16);if(ct(e)&&(e=yield e),!e)break;const i=k,s=Sr(e);if(!s)break;if("moof"===s.name){c=yield l.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(c);if(r)return this.fetchPacketInFragment(c,e,n);-1!==e&&(u=c,d=e)}k=i+s.totalSize}if(f&&(!u||u.moofOffset<f.moofOffset)){const e=this.internalTrack.fragmentLookupTable[h-1];oe(!e||e.timestamp<f.timestamp);const i=null!=(o=null==e?void 0:e.timestamp)?o:-1/0;return this.performFragmentedLookup(null,t,i,r,n)}return u?this.fetchPacketInFragment(u,d,n):null})}}class qr extends Ur{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.rotation}getColorSpace(){return Y(this,null,function*(){var e,t,i,r;const n=yield this.getDecoderConfig();return n?{primaries:null==(e=n.colorSpace)?void 0:e.primaries,transfer:null==(t=n.colorSpace)?void 0:t.transfer,matrix:null==(i=n.colorSpace)?void 0:i.matrix,fullRange:null==(r=n.colorSpace)?void 0:r.fullRange}:this.internalTrack.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)})}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e,t,i,r,n,s,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=yield this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&bi(e.data)}}else{const e=yield this.getFirstPacket({}),t=e&&yi(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const t=yield this.getFirstPacket({}),i=t&&gi(t.data);i&&(this.internalTrack.info.vp9CodecInfo=V(H({},null!=(e=this.internalTrack.info.vp9CodecInfo)?e:i),{videoFullRangeFlag:i.videoFullRangeFlag,colourPrimaries:i.colourPrimaries,transferCharacteristics:i.transferCharacteristics,matrixCoefficients:i.matrixCoefficients}))}else{const e=yield this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&ni(e.data)}else{const e=yield this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&$t(e.data)}if(!Se(this.internalTrack.info.colorSpace)){const e=ir(this.internalTrack.info);null!=(t=this.internalTrack.info.colorSpace).primaries||(t.primaries=e.primaries),null!=(i=this.internalTrack.info.colorSpace).transfer||(i.transfer=e.transfer),null!=(r=this.internalTrack.info.colorSpace).matrix||(r.matrix=e.matrix),null!=(n=this.internalTrack.info.colorSpace).fullRange||(n.fullRange=e.fullRange)}const o={codec:tr(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(s=this.internalTrack.info.codecDescription)?s:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class Wr extends Ur{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Wi(e.data)}return{codec:rr(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const Hr=(e,t)=>{if(e.presentationTimestamps){const i=Re(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=Re(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},Vr=(e,t)=>{var i;if(!e.keySampleIndices)return Hr(e,t);if(e.presentationTimestamps){const i=Re(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==_e(e.keySampleIndices,i,e=>e))return i}return-1}{const r=Hr(e,t),n=Re(e.keySampleIndices,r,e=>e);return null!=(i=e.keySampleIndices[n])?i:-1}},jr=(e,t)=>{const i=Re(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let n=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=Re(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),a=e.sampleCompositionTimeOffsets[s];a&&t-a.startIndex<a.count&&(n+=a.offset);const o=e.sampleSizes[Math.min(t,e.sampleSizes.length-1)],l=Re(e.sampleToChunk,t,e=>e.startSampleIndex),c=e.sampleToChunk[l];oe(c);const u=c.startChunkIndex+Math.floor((t-c.startSampleIndex)/c.samplesPerChunk),d=e.chunkOffsets[u],h=c.startSampleIndex+(u-c.startChunkIndex)*c.samplesPerChunk;let f=0,m=d;if(1===e.sampleSizes.length)m+=o*(t-h),f+=o*c.samplesPerChunk;else for(let g=h;g<h+c.samplesPerChunk;g++){const i=e.sampleSizes[g];g<t&&(m+=i),f+=i}let p=r.delta;if(e.presentationTimestamps){const i=e.presentationTimestampIndexMap[t];if(oe(void 0!==i),i<e.presentationTimestamps.length-1){p=e.presentationTimestamps[i+1].presentationTimestamp-n}}return{presentationTimestamp:n,duration:p,sampleOffset:m,sampleSize:o,chunkOffset:d,chunkSize:f,isKeyFrame:!e.keySampleIndices||-1!==_e(e.keySampleIndices,t,e=>e)}},Kr=(e,t)=>{var i;if(!e.keySampleIndices)return t+1;const r=Re(e.keySampleIndices,t,e=>e);return null!=(i=e.keySampleIndices[r+1])?i:-1},Xr=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},$r=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},Gr=e=>0===e.sampleSizes.length,Qr=e=>{var t,i,r;return e.currentFragmentState?null!=(i=(t=e.currentFragmentState).encryptionAuxInfo)?i:t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}:null!=(r=e.encryptionAuxInfo)?r:e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}},Yr=(e,t,i)=>Y(null,null,function*(){if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{oe(i.sampleSizes);for(let e=0;e<i.sampleCount;e++)r+=i.sampleSizes[e]}let n=e.requestSlice(i.offset,r);if(ct(n)&&(n=yield n),!n)throw new Error("Failed to read auxiliary encryption info.");const s=t.defaultPerSampleIvSize;oe(null!==s);const a=[];for(let e=0;e<i.sampleCount;e++){const r=i.defaultSampleInfoSize>0?i.defaultSampleInfoSize:i.sampleSizes[e],o=new Uint8Array(16);s>0?o.set(Tl(n,s),0):o.set(t.defaultConstantIv,0);let l=null;if(r>s){const e=Sl(n);l=[];for(let t=0;t<e;t++){const e=Sl(n),t=Cl(n);l.push({clearLen:e,protectedLen:t})}}a.push({iv:o,subsamples:l})}return i.resolved=a,a}),Jr=e=>e.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,Zr=(e,t,i,r)=>Y(null,null,function*(){var n;oe(e.encryptionInfo);const s=e.encryptionInfo;oe(null!==s.defaultKid);const a=s.defaultKid;let o;const l=e.demuxer.decryptionKeyCache.get(a);if(l)o=yield l;else{if(!(null==(n=e.demuxer.input._formatOptions.isobmff)?void 0:n.resolveKeyId))throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=Y(null,null,function*(){let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(a));for(let e=0;e<t.length-1;e++)for(let i=e+1;i<t.length;i++)wr(t[e],t[i])&&(t.splice(i,1),i--)}const i=yield e.demuxer.input._formatOptions.isobmff.resolveKeyId({keyId:a,psshBoxes:t});if(!("string"===typeof i&&32===i.length&&Ce.test(i)||i instanceof Uint8Array&&16===i.byteLength))throw new TypeError("resolveKeyId must return a 32-character hex string or a 16-byte Uint8Array containing the decryption key.");return i instanceof Uint8Array?i:(e=>{oe(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;i<e.length;i+=2)t[i/2]=parseInt(e.slice(i,i+2),16);return t})(i)});e.demuxer.decryptionKeyCache.set(a,t),o=yield t}return"cenc"===s.scheme||"cens"===s.scheme?en(o,s,t,i):tn(o,s,t,i)}),en=(e,t,i,r)=>Y(null,null,function*(){const n=new Uint8Array(16);n.set(i.iv,0);const s=yield crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),a=e=>Y(null,null,function*(){const t=yield crypto.subtle.decrypt({name:"AES-CTR",counter:n,length:64},s,e);return new Uint8Array(t)});if(!i.subsamples)return a(r);oe(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=rn(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let l=0;for(const e of o)for(const t of e.perSubsample)l+=t.length;const c=new Uint8Array(l);let u=0;for(const e of o)for(const t of e.perSubsample)c.set(r.subarray(t.offset,t.offset+t.length),u),u+=t.length;const d=yield a(c),h=new Uint8Array(r);let f=0;for(const e of o)for(const t of e.perSubsample)h.set(d.subarray(f,f+t.length),t.offset),f+=t.length;return h}),tn=(e,t,i,r)=>{const n=new Lr;n.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,a=t.defaultSkipByteBlock;if(oe(null!==s&&null!==a),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i<t;i++){const t=16*i;n.in.set(r.subarray(t,t+16)),n.decrypt(),e.set(n.out,t)}return e}if(0===s&&0===a)throw new Error("cbcs with subsamples requires pattern encryption.");const o=new Uint8Array(r),l=rn(i.subsamples,s,a),c=new DataView(i.iv.buffer,i.iv.byteOffset,16);for(const u of l){n.iv[0]=c.getUint32(0,!1),n.iv[1]=c.getUint32(4,!1),n.iv[2]=c.getUint32(8,!1),n.iv[3]=c.getUint32(12,!1);for(const e of u.perSubsample){const t=e.length/16;for(let i=0;i<t;i++){const t=e.offset+16*i;n.in.set(r.subarray(t,t+16)),n.decrypt(),o.set(n.out,t)}}}return o},rn=(e,t,i)=>{const r=[],n=0!==t||0!==i;let s=0;for(const a of e){s+=a.clearLen;const e=[];if(n){let r=a.protectedLen,n=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:n,length:s}),n+=s,r-=s;const a=Math.min(16*i,r);n+=a,r-=a}s+=a.protectedLen}else a.protectedLen>0&&e.push({offset:s,length:a.protectedLen}),s+=a.protectedLen;r.push({perSubsample:e})}return r};var nn,sn;(sn=nn||(nn={}))[sn.EBML=440786851]="EBML",sn[sn.EBMLVersion=17030]="EBMLVersion",sn[sn.EBMLReadVersion=17143]="EBMLReadVersion",sn[sn.EBMLMaxIDLength=17138]="EBMLMaxIDLength",sn[sn.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",sn[sn.DocType=17026]="DocType",sn[sn.DocTypeVersion=17031]="DocTypeVersion",sn[sn.DocTypeReadVersion=17029]="DocTypeReadVersion",sn[sn.Void=236]="Void",sn[sn.Segment=408125543]="Segment",sn[sn.SeekHead=290298740]="SeekHead",sn[sn.Seek=19899]="Seek",sn[sn.SeekID=21419]="SeekID",sn[sn.SeekPosition=21420]="SeekPosition",sn[sn.Duration=17545]="Duration",sn[sn.Info=357149030]="Info",sn[sn.TimestampScale=2807729]="TimestampScale",sn[sn.MuxingApp=19840]="MuxingApp",sn[sn.WritingApp=22337]="WritingApp",sn[sn.Tracks=374648427]="Tracks",sn[sn.TrackEntry=174]="TrackEntry",sn[sn.TrackNumber=215]="TrackNumber",sn[sn.TrackUID=29637]="TrackUID",sn[sn.TrackType=131]="TrackType",sn[sn.FlagEnabled=185]="FlagEnabled",sn[sn.FlagDefault=136]="FlagDefault",sn[sn.FlagForced=21930]="FlagForced",sn[sn.FlagOriginal=21934]="FlagOriginal",sn[sn.FlagHearingImpaired=21931]="FlagHearingImpaired",sn[sn.FlagVisualImpaired=21932]="FlagVisualImpaired",sn[sn.FlagCommentary=21935]="FlagCommentary",sn[sn.FlagLacing=156]="FlagLacing",sn[sn.Name=21358]="Name",sn[sn.Language=2274716]="Language",sn[sn.LanguageBCP47=2274717]="LanguageBCP47",sn[sn.CodecID=134]="CodecID",sn[sn.CodecPrivate=25506]="CodecPrivate",sn[sn.CodecDelay=22186]="CodecDelay",sn[sn.SeekPreRoll=22203]="SeekPreRoll",sn[sn.DefaultDuration=2352003]="DefaultDuration",sn[sn.Video=224]="Video",sn[sn.PixelWidth=176]="PixelWidth",sn[sn.PixelHeight=186]="PixelHeight",sn[sn.DisplayWidth=21680]="DisplayWidth",sn[sn.DisplayHeight=21690]="DisplayHeight",sn[sn.DisplayUnit=21682]="DisplayUnit",sn[sn.AlphaMode=21440]="AlphaMode",sn[sn.Audio=225]="Audio",sn[sn.SamplingFrequency=181]="SamplingFrequency",sn[sn.Channels=159]="Channels",sn[sn.BitDepth=25188]="BitDepth",sn[sn.SimpleBlock=163]="SimpleBlock",sn[sn.BlockGroup=160]="BlockGroup",sn[sn.Block=161]="Block",sn[sn.BlockAdditions=30113]="BlockAdditions",sn[sn.BlockMore=166]="BlockMore",sn[sn.BlockAdditional=165]="BlockAdditional",sn[sn.BlockAddID=238]="BlockAddID",sn[sn.BlockDuration=155]="BlockDuration",sn[sn.ReferenceBlock=251]="ReferenceBlock",sn[sn.Cluster=524531317]="Cluster",sn[sn.Timestamp=231]="Timestamp",sn[sn.Cues=475249515]="Cues",sn[sn.CuePoint=187]="CuePoint",sn[sn.CueTime=179]="CueTime",sn[sn.CueTrackPositions=183]="CueTrackPositions",sn[sn.CueTrack=247]="CueTrack",sn[sn.CueClusterPosition=241]="CueClusterPosition",sn[sn.Colour=21936]="Colour",sn[sn.MatrixCoefficients=21937]="MatrixCoefficients",sn[sn.TransferCharacteristics=21946]="TransferCharacteristics",sn[sn.Primaries=21947]="Primaries",sn[sn.Range=21945]="Range",sn[sn.Projection=30320]="Projection",sn[sn.ProjectionType=30321]="ProjectionType",sn[sn.ProjectionPoseRoll=30325]="ProjectionPoseRoll",sn[sn.Attachments=423732329]="Attachments",sn[sn.AttachedFile=24999]="AttachedFile",sn[sn.FileDescription=18046]="FileDescription",sn[sn.FileName=18030]="FileName",sn[sn.FileMediaType=18016]="FileMediaType",sn[sn.FileData=18012]="FileData",sn[sn.FileUID=18094]="FileUID",sn[sn.Chapters=272869232]="Chapters",sn[sn.Tags=307544935]="Tags",sn[sn.Tag=29555]="Tag",sn[sn.Targets=25536]="Targets",sn[sn.TargetTypeValue=26826]="TargetTypeValue",sn[sn.TargetType=25546]="TargetType",sn[sn.TagTrackUID=25541]="TagTrackUID",sn[sn.TagEditionUID=25545]="TagEditionUID",sn[sn.TagChapterUID=25540]="TagChapterUID",sn[sn.TagAttachmentUID=25542]="TagAttachmentUID",sn[sn.SimpleTag=26568]="SimpleTag",sn[sn.TagName=17827]="TagName",sn[sn.TagLanguage=17530]="TagLanguage",sn[sn.TagString=17543]="TagString",sn[sn.TagBinary=17541]="TagBinary",sn[sn.ContentEncodings=28032]="ContentEncodings",sn[sn.ContentEncoding=25152]="ContentEncoding",sn[sn.ContentEncodingOrder=20529]="ContentEncodingOrder",sn[sn.ContentEncodingScope=20530]="ContentEncodingScope",sn[sn.ContentCompression=20532]="ContentCompression",sn[sn.ContentCompAlgo=16980]="ContentCompAlgo",sn[sn.ContentCompSettings=16981]="ContentCompSettings",sn[sn.ContentEncryption=20533]="ContentEncryption";const an=[nn.EBML,nn.Segment],on=[nn.SeekHead,nn.Info,nn.Cluster,nn.Tracks,nn.Cues,nn.Attachments,nn.Chapters,nn.Tags],ln=[...an,...on],cn=16,un=e=>{if(e.remainingLength<1)return null;const t=vl(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength<i?null:i},dn=e=>{if(e.remainingLength<1)return null;const t=vl(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength<i-1)return null;let n=t&r-1;for(let s=1;s<i;s++)n*=256,n+=vl(e);return n},hn=(e,t)=>{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r<t;r++)i*=256,i+=vl(e);return i},fn=e=>{const t=un(e);if(null===t)return null;if(e.remainingLength<t)return null;return hn(e,t)},mn=e=>{if(e.remainingLength<1)return null;if(255===vl(e))return;e.skip(-1);const t=dn(e);return null===t?null:72057594037927940!==t?t:void 0},pn=e=>{oe(e.remainingLength>=2);const t=fn(e);if(null===t)return null;const i=mn(e);return null===i?null:{id:t,size:i}},gn=(e,t)=>{const i=Tl(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return String.fromCharCode(...i.subarray(0,r))},kn=(e,t)=>{const i=Tl(e,t);let r=0;for(;r<t&&0!==i[r];)r+=1;return pe.decode(i.subarray(0,r))},yn=(e,t)=>{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?Ml(e):Dl(e)},bn=(e,t,i,r)=>Y(null,null,function*(){const n=new Set(i);let s=t;for(;null===r||s<r;){let t=e.requestSliceRange(s,2,cn);if(ct(t)&&(t=yield t),!t)break;const i=pn(t);if(!i)break;if(n.has(i.id))return{pos:s,found:!0};Dn(i.size),s=t.filePos+i.size}return{pos:null!==r&&r>s?r:s,found:!1}}),Tn=(e,t,i,r)=>Y(null,null,function*(){const n=q(2,16),s=new Set(i);let a=t;for(;a<r;){let t=e.requestSliceRange(a,0,Math.min(n,r-a));if(ct(t)&&(t=yield t),!t)break;if(t.length<8)break;for(let e=0;e<t.length-8;e++){t.filePos=a;const e=fn(t);if(null!==e&&s.has(e))return a;a++}}return null}),vn="V_MPEG4/ISO/AVC",wn="V_MPEGH/ISO/HEVC",Sn="V_VP8",Pn="V_VP9",In="V_AV1",xn="V_PRORES",Cn="A_AAC",Bn="A_MPEG/L3",En="A_OPUS",_n="A_VORBIS",Rn="A_FLAC",Fn="A_AC3",An="A_EAC3",Mn="A_DTS";function Dn(e){if(void 0===e)throw new Error("Undefined element size is used in a place where it is not supported.")}var Nn,On,Ln,zn,Un,qn;(On=Nn||(Nn={}))[On.None=0]="None",On[On.Xiph=1]="Xiph",On[On.FixedSize=2]="FixedSize",On[On.Ebml=3]="Ebml",(zn=Ln||(Ln={}))[zn.Block=1]="Block",zn[zn.Private=2]="Private",zn[zn.Next=4]="Next",(qn=Un||(Un={}))[qn.Zlib=0]="Zlib",qn[qn.Bzlib=1]="Bzlib",qn[qn.lzo1x=2]="lzo1x",qn[qn.HeaderStripping=3]="HeaderStripping";const Wn=[{id:nn.SeekHead,flag:"seekHeadSeen"},{id:nn.Info,flag:"infoSeen"},{id:nn.Tracks,flag:"tracksSeen"},{id:nn.Cues,flag:"cuesSeen"}],Hn=10*q(2,20);class Vn extends yr{constructor(e){super(e),this.readMetadataPromise=null,this.segments=[],this.currentSegment=null,this.currentTrack=null,this.currentCluster=null,this.currentBlock=null,this.currentBlockAdditional=null,this.currentCueTime=null,this.currentDecodingInstruction=null,this.currentTagTargetIsMovie=!0,this.currentSimpleTagName=null,this.currentAttachedFile=null,this.isWebM=!1,this.reader=e._reader}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.segments.flatMap(e=>e.tracks.map(e=>e.trackBacking))})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)})),hasAudio:this.segments.some(e=>e.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)})),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return Y(this,null,function*(){yield this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&(yield this.loadSegmentMetadata(t)),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e=H(H({},e),t.metadataTags);return e})}readMetadata(){var e;return null!=(e=this.readMetadataPromise)?e:this.readMetadataPromise=(()=>Y(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,cn);if(ct(t)&&(t=yield t),!t)break;const i=pn(t);if(!i)break;const r=i.id;let n=i.size;const s=t.filePos;if(r===nn.EBML){Dn(n);let e=this.reader.requestSlice(s,n);if(ct(e)&&(e=yield e),!e)break;this.readContiguousElements(e)}else if(r===nn.Segment){if(yield this.readSegment(s,n),void 0===n)break;if(null===this.reader.fileSize)break}else if(r===nn.Cluster){if(null===this.reader.fileSize)break;if(void 0===n){n=(yield bn(this.reader,s,ln,this.reader.fileSize)).pos-s}const e=ce(this.segments);e&&(e.elementEndPos=s+n)}Dn(n),e=s+n}}))()}readSegment(e,t){return Y(this,null,function*(){var i;this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let r=e;for(;null===this.currentSegment.elementEndPos||r<this.currentSegment.elementEndPos;){let e=this.reader.requestSliceRange(r,2,cn);if(ct(e)&&(e=yield e),!e)break;const t=r,n=pn(e);if(!n||!on.includes(n.id)&&n.id!==nn.Void){const e=yield Tn(this.reader,t,on,Math.min(null!=(i=this.currentSegment.elementEndPos)?i:1/0,t+Hn));if(e){r=e;continue}break}const{id:s,size:a}=n,o=e.filePos,l=Wn.findIndex(e=>e.id===s);if(-1!==l){const e=Wn[l].flag;this.currentSegment[e]=!0,Dn(a);let t=this.reader.requestSlice(o,a);ct(t)&&(t=yield t),t&&this.readContiguousElements(t)}else if(s===nn.Tags||s===nn.Attachments){s===nn.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,Dn(a);let e=this.reader.requestSlice(o,a);ct(e)&&(e=yield e),e&&this.readContiguousElements(e)}else if(s===nn.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===a)break;r=o+a}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const t of this.currentSegment.seekEntries){const i=Wn.find(e=>e.id===t.id);if(!i)continue;if(this.currentSegment[i.flag])continue;let r=this.reader.requestSliceRange(e+t.segmentPosition,2,cn);if(ct(r)&&(r=yield r),!r)continue;const n=pn(r);if(!n)continue;const{id:s,size:a}=n;if(s!==i.id)continue;Dn(a),this.currentSegment[i.flag]=!0;let o=this.reader.requestSlice(r.filePos,a);ct(o)&&(o=yield o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const e of this.currentSegment.tracks)null!==e.defaultDurationNs&&(e.defaultDuration=this.currentSegment.timestampFactor*e.defaultDurationNs/1e9);const n=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const e of this.currentSegment.cuePoints){const t=n.get(e.trackId);t&&t.cuePoints.push(e)}for(const e of this.currentSegment.tracks){e.cuePoints.sort((e,t)=>e.time-t.time);for(let t=0;t<e.cuePoints.length-1;t++){const i=e.cuePoints[t],r=e.cuePoints[t+1];i.time===r.time&&(e.cuePoints.splice(t+1,1),t--)}}let s=null,a=-1/0;for(const e of this.currentSegment.tracks)e.cuePoints.length>a&&(a=e.cuePoints.length,s=e);for(const e of this.currentSegment.tracks)0===e.cuePoints.length&&(e.cuePoints=s.cuePoints);this.currentSegment=null})}readCluster(e,t){return Y(this,null,function*(){var i;if((null==(i=t.lastReadCluster)?void 0:i.elementStartPos)===e)return t.lastReadCluster;let r=this.reader.requestSliceRange(e,2,cn);ct(r)&&(r=yield r),oe(r);const n=e,s=pn(r);oe(s);oe(s.id===nn.Cluster);let a=s.size;const o=r.filePos;if(void 0===a){a=(yield bn(this.reader,o,ln,t.elementEndPos)).pos-o}let l=this.reader.requestSlice(o,a);ct(l)&&(l=yield l);const c={segment:t,elementStartPos:n,elementEndPos:o+a,dataStartPos:o,timestamp:-1,trackData:new Map};if(this.currentCluster=c,l){const e=this.readContiguousElements(l,ln);c.elementEndPos=e}for(const[,e]of c.trackData){const t=e.track;oe(e.blocks.length>0);let i=!1;for(let n=0;n<e.blocks.length;n++){const t=e.blocks[n];t.timestamp+=c.timestamp,i||(i=t.lacing!==Nn.None)}e.presentationTimestamps=e.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let n=0;n<e.presentationTimestamps.length;n++){const i=e.presentationTimestamps[n],r=e.blocks[i.blockIndex];if(null===e.firstKeyFrameTimestamp&&r.isKeyFrame&&(e.firstKeyFrameTimestamp=r.timestamp),n<e.presentationTimestamps.length-1){const t=e.presentationTimestamps[n+1];r.duration=t.timestamp-r.timestamp}else 0===r.duration&&null!=t.defaultDuration&&r.lacing===Nn.None&&(r.duration=t.defaultDuration)}i&&(this.expandLacedBlocks(e.blocks,t),e.presentationTimestamps=e.blocks.map((e,t)=>({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const r=e.blocks[e.presentationTimestamps[0].blockIndex],s=e.blocks[ce(e.presentationTimestamps).blockIndex];e.startTimestamp=r.timestamp,e.endTimestamp=s.timestamp+s.duration;const a=Re(t.clusterPositionCache,e.startTimestamp,e=>e.startTimestamp);-1!==a&&t.clusterPositionCache[a].elementStartPos===n||t.clusterPositionCache.splice(a+1,0,{elementStartPos:c.elementStartPos,startTimestamp:e.startTimestamp})}return t.lastReadCluster=c,c})}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){var i;for(let r=0;r<e.length;r++){const n=e[r];if(n.lacing===Nn.None)continue;n.decoded||(n.data=this.decodeBlockData(t,n.data),n.decoded=!0);const s=yl.tempFromBytes(n.data),a=[],o=vl(s)+1;switch(n.lacing){case Nn.Xiph:{let e=0;for(let t=0;t<o-1;t++){let t=0;for(;s.bufferPos<s.length;){const i=vl(s);if(t+=i,i<255){a.push(t),e+=t;break}}}a.push(s.length-(s.bufferPos+e))}break;case Nn.FixedSize:{const e=s.length-1,t=Math.floor(e/o);for(let i=0;i<o;i++)a.push(t)}break;case Nn.Ebml:{const e=dn(s);oe(null!==e);let t=e;a.push(t);let i=t;for(let r=1;r<o-1;r++){const e=s.bufferPos,r=dn(s);oe(null!==r);t+=r-((1<<7*(s.bufferPos-e)-1)-1),a.push(t),i+=t}a.push(s.length-(s.bufferPos+i))}break;default:oe(!1)}oe(a.length===o),e.splice(r,1);const l=n.duration||o*(null!=(i=t.defaultDuration)?i:0);for(let t=0;t<o;t++){const i=a[t],c=Tl(s,i),u=n.timestamp+l*t/o,d=l/o;e.splice(r+t,0,{timestamp:u,duration:d,isKeyFrame:n.isKeyFrame,data:c,lacing:Nn.None,decoded:!0,postProcessed:!1,mainAdditional:n.mainAdditional})}r+=o,r--}}loadSegmentMetadata(e){return Y(this,null,function*(){for(const t of e.seekEntries){if(t.id!==nn.Tags||e.tagsSeen){if(t.id!==nn.Attachments||e.attachmentsSeen)continue}else;let i=this.reader.requestSliceRange(e.dataStartPos+t.segmentPosition,2,cn);if(ct(i)&&(i=yield i),!i)continue;const r=pn(i);if(!r||r.id!==t.id)continue;const{size:n}=r;Dn(n),oe(!this.currentSegment),this.currentSegment=e;let s=this.reader.requestSlice(i.filePos,n);ct(s)&&(s=yield s),s&&this.readContiguousElements(s),this.currentSegment=null,t.id===nn.Tags?e.tagsSeen=!0:t.id===nn.Attachments&&(e.attachmentsSeen=!0)}})}readContiguousElements(e,t){for(;e.remainingLength>=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,w,S,P,I,x,C,B,E,_,R,F,A,M,D,N,O,L,z,U,q,W,j,K,X,$,G,Q,Y,J,Z,ee;const te=pn(e);if(!te)return!1;if(t&&t.includes(te.id))return!1;const{id:ie,size:re}=te,ne=e.filePos;switch(Dn(re),ie){case nn.DocType:this.isWebM="webm"===gn(e,re);break;case nn.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(ne,re)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case nn.SeekID:{const t=null==(i=this.currentSegment)?void 0:i.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=hn(e,re)}break;case nn.SeekPosition:{const t=null==(r=this.currentSegment)?void 0:r.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=hn(e,re)}break;case nn.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=hn(e,re),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case nn.Duration:if(!this.currentSegment)break;this.currentSegment.duration=yn(e,re);break;case nn.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:V(H({},Ct),{primary:!1}),trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(ne,re)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>{var t;return"decompress"!==(null==(t=e.data)?void 0:t.type)||e.scope!==Ln.Block||e.data.algorithm!==Un.HeaderStripping})&&(Pt._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===vn)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===wn)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===Sn)this.currentTrack.info.codec="vp8";else if(t===Pn)this.currentTrack.info.codec="vp9";else if(t===In)this.currentTrack.info.codec="av1";else if(t===xn){const e=this.currentTrack.codecPrivate?pe.decode(this.currentTrack.codecPrivate):"";Zi.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new Kn(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===Cn?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===Bn?this.currentTrack.info.codec="mp3":t===En?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=nr):t===_n?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Rn?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Fn?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===An?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Mn?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new Xn(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case nn.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=hn(e,re);break;case nn.TrackType:{if(!this.currentTrack)break;const t=hn(e,re);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:H({},Pe),alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case nn.FlagEnabled:if(!this.currentTrack)break;hn(e,re)||(this.currentTrack=null);break;case nn.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!hn(e,re);break;case nn.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!hn(e,re);break;case nn.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!hn(e,re);break;case nn.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!hn(e,re);break;case nn.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!hn(e,re);break;case nn.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!hn(e,re);break;case nn.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=gn(e,re);break;case nn.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=Tl(e,re);break;case nn.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=hn(e,re);break;case nn.Name:if(!this.currentTrack)break;this.currentTrack.name=kn(e,re);break;case nn.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=gn(e,re),Ge(this.currentTrack.languageCode)||(this.currentTrack.languageCode=We);break;case nn.LanguageBCP47:{if(!this.currentTrack)break;const t=gn(e,re).split("-")[0];this.currentTrack.languageCode=t||We,this.currentTrack.hasLanguageBcp47=!0}break;case nn.Video:if("video"!==(null==(s=null==(n=this.currentTrack)?void 0:n.info)?void 0:s.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.PixelWidth:if("video"!==(null==(o=null==(a=this.currentTrack)?void 0:a.info)?void 0:o.type))break;this.currentTrack.info.width=hn(e,re);break;case nn.PixelHeight:if("video"!==(null==(c=null==(l=this.currentTrack)?void 0:l.info)?void 0:c.type))break;this.currentTrack.info.height=hn(e,re);break;case nn.DisplayWidth:if("video"!==(null==(d=null==(u=this.currentTrack)?void 0:u.info)?void 0:d.type))break;this.currentTrack.info.displayWidth=hn(e,re);break;case nn.DisplayHeight:if("video"!==(null==(f=null==(h=this.currentTrack)?void 0:h.info)?void 0:f.type))break;this.currentTrack.info.displayHeight=hn(e,re);break;case nn.DisplayUnit:if("video"!==(null==(p=null==(m=this.currentTrack)?void 0:m.info)?void 0:p.type))break;this.currentTrack.info.displayUnit=hn(e,re);break;case nn.AlphaMode:if("video"!==(null==(k=null==(g=this.currentTrack)?void 0:g.info)?void 0:k.type))break;this.currentTrack.info.alphaMode=1===hn(e,re);break;case nn.Colour:if("video"!==(null==(b=null==(y=this.currentTrack)?void 0:y.info)?void 0:b.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.MatrixCoefficients:{if("video"!==(null==(v=null==(T=this.currentTrack)?void 0:T.info)?void 0:v.type))break;const t=hn(e,re),i=we[t];this.currentTrack.info.colorSpace.matrix=i}break;case nn.Range:{if("video"!==(null==(S=null==(w=this.currentTrack)?void 0:w.info)?void 0:S.type))break;const t=hn(e,re);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case nn.TransferCharacteristics:{if("video"!==(null==(I=null==(P=this.currentTrack)?void 0:P.info)?void 0:I.type))break;const t=hn(e,re),i=Te[t];this.currentTrack.info.colorSpace.transfer=i}break;case nn.Primaries:{if("video"!==(null==(C=null==(x=this.currentTrack)?void 0:x.info)?void 0:C.type))break;const t=hn(e,re),i=ye[t];this.currentTrack.info.colorSpace.primaries=i}break;case nn.Projection:if("video"!==(null==(E=null==(B=this.currentTrack)?void 0:B.info)?void 0:E.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.ProjectionPoseRoll:{if("video"!==(null==(R=null==(_=this.currentTrack)?void 0:_.info)?void 0:R.type))break;const t=-yn(e,re);try{this.currentTrack.info.rotation=le(t)}catch(se){}}break;case nn.Audio:if("audio"!==(null==(A=null==(F=this.currentTrack)?void 0:F.info)?void 0:A.type))break;this.readContiguousElements(e.slice(ne,re));break;case nn.SamplingFrequency:if("audio"!==(null==(D=null==(M=this.currentTrack)?void 0:M.info)?void 0:D.type))break;this.currentTrack.info.sampleRate=yn(e,re);break;case nn.Channels:if("audio"!==(null==(O=null==(N=this.currentTrack)?void 0:N.info)?void 0:O.type))break;this.currentTrack.info.numberOfChannels=hn(e,re);break;case nn.BitDepth:if("audio"!==(null==(z=null==(L=this.currentTrack)?void 0:L.info)?void 0:z.type))break;this.currentTrack.info.bitDepth=hn(e,re);break;case nn.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(ne,re)),this.currentCueTime=null;break;case nn.CueTime:this.currentCueTime=hn(e,re);break;case nn.CueTrackPositions:{if(null===this.currentCueTime)break;oe(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(ne,re)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case nn.CueTrack:{const t=null==(U=this.currentSegment)?void 0:U.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=hn(e,re)}break;case nn.CueClusterPosition:{const t=null==(q=this.currentSegment)?void 0:q.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;oe(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+hn(e,re)}break;case nn.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=hn(e,re);break;case nn.SimpleBlock:{if(!this.currentCluster)break;const t=dn(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Il(e),n=vl(e),s=n>>1&3;let a=!!(128&n);"audio"===(null==(W=i.track.info)?void 0:W.type)&&i.track.info.codec&&(a=!0);const o=Tl(e,re-(e.filePos-ne)),l=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:a,data:o,lacing:s,decoded:!l,postProcessed:!1,mainAdditional:null})}break;case nn.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(ne,re)),this.currentBlock=null;break;case nn.Block:{if(!this.currentCluster)break;const t=dn(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Il(e),n=vl(e)>>1&3,s=Tl(e,re-(e.filePos-ne)),a=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:s,lacing:n,decoded:!a,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case nn.BlockAdditions:this.readContiguousElements(e.slice(ne,re));break;case nn.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(ne,re)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case nn.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=Tl(e,re);break;case nn.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=hn(e,re);break;case nn.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=hn(e,re);break;case nn.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case nn.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(ne,re));break;case nn.Targets:this.readContiguousElements(e.slice(ne,re));break;case nn.TargetTypeValue:50!==hn(e,re)&&(this.currentTagTargetIsMovie=!1);break;case nn.TagTrackUID:case nn.TagEditionUID:case nn.TagChapterUID:case nn.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case nn.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(ne,re));break;case nn.TagName:this.currentSimpleTagName=kn(e,re);break;case nn.TagString:{if(!this.currentSimpleTagName)break;const t=kn(e,re);this.processTagValue(this.currentSimpleTagName,t)}break;case nn.TagBinary:{if(!this.currentSimpleTagName)break;const t=Tl(e,re);this.processTagValue(this.currentSimpleTagName,t)}break;case nn.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(ne,re));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(null!=t.raw||(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new xt(this.currentAttachedFile.fileData,null!=(j=this.currentAttachedFile.fileMediaType)?j:void 0,null!=(K=this.currentAttachedFile.fileName)?K:void 0,null!=(X=this.currentAttachedFile.fileDescription)?X:void 0)),(null==($=this.currentAttachedFile.fileMediaType)?void 0:$.startsWith("image/"))&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}null!=t.images||(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:null!=(G=this.currentAttachedFile.fileName)?G:void 0,description:null!=(Q=this.currentAttachedFile.fileDescription)?Q:void 0})}this.currentAttachedFile=null}break;case nn.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=BigInt("0");for(let r=0;r<t;r++)i<<=BigInt("8"),i+=BigInt(vl(e));return i})(e,re);break;case nn.FileName:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=kn(e,re);break;case nn.FileMediaType:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=gn(e,re);break;case nn.FileData:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=Tl(e,re);break;case nn.FileDescription:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=kn(e,re);break;case nn.ContentEncodings:if(!this.currentTrack)break;this.readContiguousElements(e.slice(ne,re)),this.currentTrack.decodingInstructions.sort((e,t)=>t.order-e.order);break;case nn.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Ln.Block,data:null},this.readContiguousElements(e.slice(ne,re)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case nn.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=hn(e,re);break;case nn.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=hn(e,re);break;case nn.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:Un.Zlib,settings:null},this.readContiguousElements(e.slice(ne,re));break;case nn.ContentCompAlgo:if("decompress"!==(null==(J=null==(Y=this.currentDecodingInstruction)?void 0:Y.data)?void 0:J.type))break;this.currentDecodingInstruction.data.algorithm=hn(e,re);break;case nn.ContentCompSettings:if("decompress"!==(null==(ee=null==(Z=this.currentDecodingInstruction)?void 0:Z.data)?void 0:ee.type))break;this.currentDecodingInstruction.data.settings=Tl(e,re);break;case nn.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=ne+re,!0}decodeBlockData(e,t){oe(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(oe(r.data),"decompress"===r.data.type)if(r.data.algorithm===Un.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i,r;if(!(null==(i=this.currentSegment)?void 0:i.metadataTags))return;const n=this.currentSegment.metadataTags;if(null!=n.raw||(n.raw={}),null!=(r=n.raw)[e]||(r[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":null!=n.title||(n.title=t);break;case"description":null!=n.description||(n.description=t);break;case"artist":null!=n.artist||(n.artist=t);break;case"album":null!=n.album||(n.album=t);break;case"album_artist":null!=n.albumArtist||(n.albumArtist=t);break;case"genre":null!=n.genre||(n.genre=t);break;case"comment":null!=n.comment||(n.comment=t);break;case"lyrics":null!=n.lyrics||(n.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||null!=n.date||(n.date=e)}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.trackNumber||(n.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.tracksTotal||(n.tracksTotal=r))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.discNumber||(n.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.discsTotal||(n.discsTotal=r))}}}getDurationFromMetadata(e){return Y(this,null,function*(){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){oe(r.trackBacking);const e=yield r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(null!=t?t:1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=null!=t?t:0,i})}}class jn{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getFirstPacket(e){return Y(this,null,function*(){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)})}intoTimescale(e){return He(e*this.internalTrack.segment.timestampFactor)}getPacket(e,t){return Y(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=Re(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1<t.blocks.length)return{blockIndex:i.blockIndex+1,correctBlockFound:!0}}else{if(e.trackData.get(this.internalTrack.id))return{blockIndex:0,correctBlockFound:!0}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}getKeyPacket(e,t){return Y(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=Ne(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i<t.endTimestamp}},i,i,t)})}getNextKeyPacket(e,t){return Y(this,null,function*(){const i=this.packetToClusterLocation.get(e);if(void 0===i)throw new Error("Packet was not created from this track.");return this.performClusterLookup(i.cluster,e=>{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return oe(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}fetchPacketInCluster(e,t,i){return Y(this,null,function*(){var r,n;if(-1===t)return null;const s=e.trackData.get(this.internalTrack.id).blocks[t];if(oe(s),s.decoded||(s.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,s.data),s.decoded=!0),!s.postProcessed){if("prores"===(null==(r=this.internalTrack.info)?void 0:r.codec)){if(!(s.data.length>=8&&105===s.data[4]&&99===s.data[5]&&112===s.data[6]&&102===s.data[7])){const e=new Uint8Array(s.data.length+8);me(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(s.data,8),s.data=e}}s.postProcessed=!0}const a=i.metadataOnly?br:s.data,o=s.timestamp/this.internalTrack.segment.timestampFactor,l=s.duration/this.internalTrack.segment.timestampFactor,c={};s.mainAdditional&&"video"===(null==(n=this.internalTrack.info)?void 0:n.type)&&this.internalTrack.info.alphaMode&&(c.alpha=i.metadataOnly?br:s.mainAdditional,c.alphaByteLength=s.mainAdditional.byteLength);const u=new Tr(a,s.isKeyFrame?"key":"delta",o,l,e.dataStartPos+t,s.data.byteLength,c);return this.packetToClusterLocation.set(u,{cluster:e,blockIndex:t}),u})}performClusterLookup(e,t,i,r,n){return Y(this,null,function*(){var s,a,o,l;const{demuxer:c,segment:u}=this.internalTrack;let d=null,h=null,f=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,n);-1!==i&&(h=e,f=i)}const m=Re(this.internalTrack.cuePoints,i,e=>e.time),p=-1!==m?this.internalTrack.cuePoints[m]:null,g=Re(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),k=-1!==g?this.internalTrack.clusterPositionCache[g]:null,y=Math.max(null!=(s=null==p?void 0:p.clusterPosition)?s:0,null!=(a=null==k?void 0:k.elementStartPos)?a:0)||null;let b;for(e?null===y||e.elementStartPos>=y?(b=e.elementEndPos,d=e):b=y:b=null!=y?y:u.clusterSeekStartPos;null===u.elementEndPos||b<=u.elementEndPos-2;){if(d){const e=d.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=c.reader.requestSliceRange(b,2,cn);if(ct(e)&&(e=yield e),!e)break;const i=b,s=pn(e);if(!s||!on.includes(s.id)&&s.id!==nn.Void){const e=yield Tn(c.reader,i,on,Math.min(null!=(o=u.elementEndPos)?o:1/0,i+Hn));if(e){b=e;continue}break}const a=s.id;let l=s.size;const m=e.filePos;if(a===nn.Cluster){d=yield c.readCluster(i,u),l=d.elementEndPos-m;const{blockIndex:e,correctBlockFound:r}=t(d);if(r)return this.fetchPacketInCluster(d,e,n);-1!==e&&(h=d,f=e)}if(void 0===l){oe(a!==nn.Cluster);l=(yield bn(c.reader,m,ln,u.elementEndPos)).pos-m}const p=m+l;if(null===u.elementEndPos){let e=c.reader.requestSliceRange(p,2,cn);if(ct(e)&&(e=yield e),!e)break;if(fn(e)===nn.Segment){u.elementEndPos=p;break}}b=p}if(p&&(!h||h.elementStartPos<p.clusterPosition)){const e=this.internalTrack.cuePoints[m-1];oe(!e||e.time<p.time);const i=null!=(l=null==e?void 0:e.time)?l:-1/0;return this.performClusterLookup(null,t,i,r,n)}return h?this.fetchPacketInCluster(h,f,n):null})}}class Kn extends jn{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"video"}getCodec(){return this.internalTrack.info.codec}getCodedWidth(){return this.internalTrack.info.width}getCodedHeight(){return this.internalTrack.info.height}getSquarePixelWidth(){return this.internalTrack.info.squarePixelWidth}getSquarePixelHeight(){return this.internalTrack.info.squarePixelHeight}getRotation(){return this.internalTrack.info.rotation}getColorSpace(){return Y(this,null,function*(){var e,t,i,r;const n=yield this.getDecoderConfig();return n?{primaries:null==(e=n.colorSpace)?void 0:e.primaries,transfer:null==(t=n.colorSpace)?void 0:t.transfer,matrix:null==(i=n.colorSpace)?void 0:i.matrix,fullRange:null==(r=n.colorSpace)?void 0:r.fullRange}:this.internalTrack.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return this.internalTrack.info.alphaMode||"prores"===this.internalTrack.info.codec&&("ap4h"===this.internalTrack.info.proresFormat||"ap4x"===this.internalTrack.info.proresFormat)})}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e,t,i,r,n;let s=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(s=yield this.getFirstPacket({}));const a={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&s?$t(s.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&s?ni(s.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&s?gi(s.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&s?yi(s.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&s?bi(s.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!Se(this.internalTrack.info.colorSpace)){const n=ir(a);null!=(e=this.internalTrack.info.colorSpace).primaries||(e.primaries=n.primaries),null!=(t=this.internalTrack.info.colorSpace).transfer||(t.transfer=n.transfer),null!=(i=this.internalTrack.info.colorSpace).matrix||(i.matrix=n.matrix),null!=(r=this.internalTrack.info.colorSpace).fullRange||(r.fullRange=n.fullRange)}const o={codec:tr(a),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(n=this.internalTrack.info.codecDescription)?n:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class Xn extends jn{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>Y(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Wi(e.data)}return{codec:rr({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const $n=(e,t,i,r=null)=>Y(null,null,function*(){const n=q(2,16);let s=t;for(;null===i||s<i;){const t=null!==i?Math.min(n,i-s):n;let a=e.requestSliceRange(s,4,t);if(ct(a)&&(a=yield a),!a||a.length<4)break;for(;a.remainingLength>=4;){const t=a.filePos,i=Cl(a),n=null!==e.fileSize?e.fileSize-s:null,o=fr(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&kr(o.header.channel)===kr(r.channel)))return{header:o.header,startPos:s};a.filePos=t+o.bytesAdvanced,s=a.filePos}}return null});class Gn extends yr{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new xe,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new Qn(this)]}))()})}advanceReader(){return Y(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=Xl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=yield $n(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=hr(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(ct(r)&&(r=yield r),r){const n=Cl(r);if(n===ur||n===dr){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(ct(t)&&(t=yield t),t){const e=Tl(t,12),i=me(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&pr.FrameCount?i.getUint32(4,!1):null,fileSize:r&pr.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const n=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:n,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame})}getMimeType(){return Y(this,null,function*(){return"audio/mpeg"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=!0;let n=this.reader.requestSlice(i.filePos,r.size);if(ct(n)&&(n=yield n),!n)break;$l(n,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=Wl){let e=this.reader.requestSlice(this.reader.fileSize-Wl,Wl);ct(e)&&(e=yield e),oe(e);"TAG"===Nl(e,3)&&jl(e,this.metadataTags)}return this.metadataTags}finally{e()}})}}class Qn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){const e=this.demuxer;if(oe(null!==e.firstFrameHeader),oe(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,n=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(n<<t):2===i?144*r/n:12*r/n*4),a=(e.reader.fileSize-e.firstFrameHeaderPos)/s;return Math.round(a)*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}var t,i,r,n;return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getCodec(){return"mp3"}getInternalCodecId(){return null}getNumberOfChannels(){return oe(this.demuxer.firstFrameHeader),kr(this.demuxer.firstFrameHeader.channel)}getSampleRate(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.firstFrameHeader),{codec:"mp3",numberOfChannels:kr(this.demuxer.firstFrameHeader.channel),sampleRate:this.demuxer.firstFrameHeader.sampleRate}})}getPacketAtIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.dataSize)}return new Tr(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=_e(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);yield this.demuxer.advanceReader()}}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Yn=1399285583,Jn=new Uint32Array(256);for(let Bc=0;Bc<256;Bc++){let e=Bc<<24;for(let t=0;t<8;t++)e=2147483648&e?e<<1^79764919:e<<1;Jn[Bc]=e>>>0&4294967295}const Zn=e=>{const t=me(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let n=0;n<e.length;n++){const t=e[n];r=(r<<8^Jn[r>>>24^t])>>>0}return t.setUint32(22,i,!0),r},es=(e,t,i)=>{let r=0,n=null;if(e.length>0)if("vorbis"===t.codec){oe(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,a=(e[0]&s)>>1;if(a>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let o=i;const l=t.vorbisInfo.modeBlockflags[a];if(n=t.vorbisInfo.blocksizes[l],1===l){const i=1+(1|s),r=e[0]&i?1:0;o=t.vorbisInfo.blocksizes[r]}r=null!==o?o+n>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:Ti[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:n}},ts=27,is=282,rs=e=>{const t=e.filePos;if(Bl(e)!==Yn)return null;e.skip(1);const i=vl(e),r=Al(e),n=Bl(e),s=Bl(e),a=Bl(e),o=vl(e),l=new Uint8Array(o);for(let d=0;d<o;d++)l[d]=vl(e);const c=27+o,u=l.reduce((e,t)=>e+t,0);return{headerStartPos:t,totalSize:c+u,dataStartPos:t+c,dataSize:u,headerType:i,granulePosition:r,serialNumber:n,sequenceNumber:s,checksum:a,lacingValues:l}},ns=(e,t)=>{for(;e.filePos<t-3;){const t=Bl(e),i=79;if((255&t)===i||(t>>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===Yn)return!0;e.skip(1)}}return!1};class ss extends yr{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,ts,is);if(ct(t)&&(t=yield t),!t)break;const i=rs(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=yield this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?yield this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&(yield this.readOpusMetadata(e,t)),null!==t.codecInfo.codec&&this.trackBackings.push(new as(t,this)))}}))()})}readVorbisMetadata(e,t){return Y(this,null,function*(){let i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=yield this.findNextPacketStart(r),!i)return;const n=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!n)return;if(3!==r.data[0]||5!==n.data[0])return;const s=[],a=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};a(e.data.length),a(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+n.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(n.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=n;const l=me(e.data);t.numberOfChannels=l.getUint8(11),t.sampleRate=l.getUint32(12,!0);const c=l.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&c),1<<(c>>4)],modeBlockflags:vi(n.data).modeBlockflags},Ii(r.data.subarray(7),this.metadataTags)})}readOpusMetadata(e,t){return Y(this,null,function*(){const i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const n=(e=>{const t=me(e),i=t.getUint8(9),r=t.getUint16(10,!0),n=t.getUint32(12,!0),s=t.getInt16(16,!0),a=t.getUint8(18);let o=null;return a&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:n,outputGain:s,channelMappingFamily:a,channelMappingTable:o}})(e.data);t.numberOfChannels=n.outputChannelCount,t.sampleRate=nr,t.codecInfo.opusInfo={preSkip:n.preSkip},Ii(r.data.subarray(8),this.metadataTags)})}readPacket(e,t){return Y(this,null,function*(){oe(t<e.lacingValues.length);let i=0;for(let u=0;u<t;u++)i+=e.lacingValues[u];let r=e,n=i,s=t;const a=[];e:for(;;){let t=this.reader.requestSlice(r.dataStartPos,r.dataSize);ct(t)&&(t=yield t),oe(t);const o=Tl(t,r.dataSize);for(;;){if(s===r.lacingValues.length){a.push(o.subarray(i,n));break}const e=r.lacingValues[s];if(n+=e,e<255){a.push(o.subarray(i,n));break e}s++}let l=r.headerStartPos+r.totalSize;for(;;){let t=this.reader.requestSliceRange(l,ts,is);if(ct(t)&&(t=yield t),!t)return null;const i=rs(t);if(!i)return null;if(r=i,r.serialNumber===e.serialNumber)break;l=r.headerStartPos+r.totalSize}i=0,n=0,s=0}const o=a.reduce((e,t)=>e+t.length,0);if(0===o)return null;const l=new Uint8Array(o);let c=0;for(let e=0;e<a.length;e++){const t=a[e];l.set(t,c),c+=t.length}return{data:l,endPage:r,endSegmentIndex:s}})}findNextPacketStart(e){return Y(this,null,function*(){if(e.endSegmentIndex<e.endPage.lacingValues.length-1)return{startPage:e.endPage,startSegmentIndex:e.endSegmentIndex+1};if(!!(4&e.endPage.headerType))return null;let t=e.endPage.headerStartPos+e.endPage.totalSize;for(;;){let i=this.reader.requestSliceRange(t,ts,is);if(ct(i)&&(i=yield i),!i)return null;const r=rs(i);if(!r)return null;if(r.serialNumber===e.endPage.serialNumber)return{startPage:r,startSegmentIndex:0};t=r.headerStartPos+r.totalSize}})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();return(e=>{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(yield Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})))).filter(Boolean)})})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}class as{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new xe,this.internalSampleRate="opus"===e.codecInfo.codec?nr:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return oe(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}getDecoderConfig(){return Y(this,null,function*(){var e;return oe(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:null!=(e=this.bitstream.description)?e:void 0}})}getName(){return null}getLanguageCode(){return We}getDisposition(){return V(H({},Ct),{primary:!1})}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(oe(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:n}=es(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new Tr(i.metadataOnly?br:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:n}),s}getFirstPacket(e){return Y(this,null,function*(){oe(this.bitstream.lastMetadataPacket);const t=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(oe(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=yield this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)})}getNextPacket(e,t){return Y(this,null,function*(){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=yield this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const n=i.timestampInSamples+i.durationInSamples,s=yield this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:n,vorbisLastBlocksize:i.vorbisBlockSize},t)})}getPacket(e,t){return Y(this,null,function*(){var i,r;if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const n=He(e*this.internalSampleRate);if(0===n)return this.getFirstPacket(t);if(n<0)return null;oe(this.bitstream.lastMetadataPacket);const s=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!s)return null;let a=s.startPage,o=this.demuxer.reader.fileSize;const l=[a];e:for(;a.headerStartPos+a.totalSize<o;){const e=a.headerStartPos,t=Math.floor((e+o)/2);let i=t;for(;;){const e=Math.min(i+65307,o-ts);let r=this.demuxer.reader.requestSlice(i,e-i);ct(r)&&(r=yield r),oe(r);if(!ns(r,e)){o=t+ts;continue e}let s=this.demuxer.reader.requestSliceRange(r.filePos,ts,is);ct(s)&&(s=yield s),oe(s);const c=rs(s);oe(c);let u=!1;if(c.serialNumber===this.bitstream.serialNumber)u=!0;else{let e=this.demuxer.reader.requestSlice(c.headerStartPos,c.totalSize);ct(e)&&(e=yield e),oe(e);const t=Tl(e,c.totalSize);u=Zn(t)===c.checksum}if(!u){i=c.headerStartPos+4;continue}if(u&&c.serialNumber!==this.bitstream.serialNumber){i=c.headerStartPos+c.totalSize;continue}if(!(-1===c.granulePosition)){this.granulePositionToTimestampInSamples(c.granulePosition)>n?o=c.headerStartPos:(a=c,l.push(c));continue e}i=c.headerStartPos+c.totalSize}}let c=s.startPage;for(const e of l){if(e.granulePosition===a.granulePosition)break;(!c||e.headerStartPos>c.headerStartPos)&&(c=e)}let u=c;const d=[u];for(;u.serialNumber!==this.bitstream.serialNumber||u.granulePosition!==a.granulePosition;){const e=u.headerStartPos+u.totalSize;let t=this.demuxer.reader.requestSliceRange(e,ts,is);ct(t)&&(t=yield t),oe(t);const i=rs(t);oe(i),u=i,u.serialNumber===this.bitstream.serialNumber&&d.push(u)}oe(-1!==u.granulePosition);let h,f,m=null,p=u,g=0;if(u.headerStartPos===s.startPage.headerStartPos)h=this.granulePositionToTimestampInSamples(0),f=!0,m=0;else{h=0,f=!1;for(let t=u.lacingValues.length-1;t>=0;t--){if(u.lacingValues[t]<255){m=t+1;break}}if(null===m)throw new Error("Invalid page with granule position: no packets end on this page.");g=m-1;const e={data:br,endPage:p,endSegmentIndex:g};if(yield this.demuxer.findNextPacketStart(e)){const e=ls(d,u,m);oe(e);const t=os(d,e.page,e.segmentIndex);t&&(u=t.page,m=t.segmentIndex)}else for(;;){const e=ls(d,u,m);if(!e)break;const t=os(d,e.page,e.segmentIndex);if(!t)break;if(u=t.page,m=t.segmentIndex,e.page.headerStartPos!==p.headerStartPos){p=e.page,g=e.segmentIndex;break}}}let k=null,y=null;for(;null!==u;){oe(null!==m);const e=yield this.demuxer.readPacket(u,m);if(!e)break;if(!(u.headerStartPos===s.startPage.headerStartPos&&m<s.startSegmentIndex)){let s=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:h,vorbisLastBlocksize:null!=(i=null==y?void 0:y.vorbisBlockSize)?i:null},t);oe(s);let a=this.encodedPacketToMetadata.get(s);if(oe(a),f||e.endPage.headerStartPos!==p.headerStartPos||e.endSegmentIndex!==g?h+=a.durationInSamples:(h=this.granulePositionToTimestampInSamples(u.granulePosition),f=!0,s=this.createEncodedPacketFromOggPacket(e,{timestampInSamples:h-a.durationInSamples,vorbisLastBlocksize:null!=(r=null==y?void 0:y.vorbisBlockSize)?r:null},t),oe(s),a=this.encodedPacketToMetadata.get(s),oe(a)),k=s,y=a,f&&(Math.max(h,0)>n||Math.max(a.timestampInSamples,0)===n))break}const a=yield this.demuxer.findNextPacketStart(e);if(!a)break;u=a.startPage,m=a.startSegmentIndex}return k})}getPacketSequential(e,t){return Y(this,null,function*(){const i=yield this.sequentialScanMutex.acquire();try{const i=He(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=Re(this.sequentialScanCache,i,e=>e.timestampInSamples);let n;if(-1!==r){const e=this.sequentialScanCache[r];n=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else n=yield this.getFirstPacket(t);let s=0;for(;n&&n.timestamp<e;){const i=yield this.getNextPacket(n,t);if(!i||i.timestamp>e)break;if(n=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(n);oe(e),this.sequentialScanCache.length>0&&oe(ce(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return n}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const os=(e,t,i)=>{let r=t,n=i;e:for(;;){for(n--;n>=0;n--){if(r.lacingValues[n]<255){n++;break e}}oe(-1===n);if(!(1&r.headerType)){n=0;break}const t=De(e,e=>e.headerStartPos<r.headerStartPos);if(!t)return null;r=t,n=r.lacingValues.length}if(oe(-1!==n),n===r.lacingValues.length){const t=e[e.indexOf(r)+1];oe(t),r=t,n=0}return{page:r,segmentIndex:n}},ls=(e,t,i)=>{if(i>0)return{page:t,segmentIndex:i-1};const r=De(e,e=>e.headerStartPos<t.headerStartPos);return r?{page:r,segmentIndex:r.lacingValues.length-1}:null};var cs,us;(us=cs||(cs={}))[us.PCM=1]="PCM",us[us.IEEE_FLOAT=3]="IEEE_FLOAT",us[us.ALAW=6]="ALAW",us[us.MULAW=7]="MULAW",us[us.EXTENSIBLE=65534]="EXTENSIBLE";class ds extends yr{constructor(e){super(e),this.metadataPromise=null,this.dataStart=-1,this.dataSize=-1,this.audioInfo=null,this.trackBackings=[],this.lastKnownPacketIndex=0,this.metadataTags={},this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){var e,t;let i=this.reader.requestSlice(0,12);ct(i)&&(i=yield i),oe(i);const r=Nl(i,4),n="RIFX"!==r,s="RF64"===r,a=xl(i,n);let o=s?this.reader.fileSize:Math.min(a+8,null!=(e=this.reader.fileSize)?e:1/0);if("WAVE"!==Nl(i,4))throw new Error("Invalid WAVE file - wrong format");let l=0,c=null,u=i.filePos;for(;null===o||u<o;){let e=this.reader.requestSlice(u,8);if(ct(e)&&(e=yield e),!e)break;const i=Nl(e,4),r=xl(e,n),a=e.filePos;if(s&&0===l&&"ds64"!==i)throw new Error('Invalid RF64 file: First chunk must be "ds64".');if("fmt "===i)yield this.parseFmtChunk(a,r,n);else if("data"===i){if(null!=c||(c=r),this.dataStart=e.filePos,this.dataSize=Math.min(c,(null!=o?o:1/0)-this.dataStart),null===this.reader.fileSize)break}else if("ds64"===i){let e=this.reader.requestSlice(a,r);if(ct(e)&&(e=yield e),!e)break;const i=_l(e,n);c=_l(e,n),o=Math.min(i+8,null!=(t=this.reader.fileSize)?t:1/0)}else"LIST"===i?yield this.parseListChunk(a,r,n):"ID3 "!==i&&"id3 "!==i||(yield this.parseId3Chunk(a,r));u=a+r+(1&r),l++}if(!this.audioInfo)throw new Error('Invalid WAVE file - missing "fmt " chunk');if(-1===this.dataStart)throw new Error('Invalid WAVE file - missing "data" chunk');const d=this.audioInfo.blockSizeInBytes;this.dataSize=Math.floor(this.dataSize/d)*d,this.trackBackings.push(new fs(this))}))()})}parseFmtChunk(e,t,i){return Y(this,null,function*(){let r=this.reader.requestSlice(e,t);if(ct(r)&&(r=yield r),!r)return;let n=wl(r,i);const s=wl(r,i),a=xl(r,i);r.skip(4);const o=wl(r,i);let l;if(l=14===t?8:wl(r,i),t>=18&&357!==n){const e=wl(r,i),s=t-18;if(Math.min(s,e)>=22&&n===cs.EXTENSIBLE){r.skip(6);const e=Tl(r,16);n=e[0]|e[1]<<8}}if(n!==cs.MULAW&&n!==cs.ALAW||(l=8),n!==cs.PCM&&n!==cs.IEEE_FLOAT&&n!==cs.ALAW&&n!==cs.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${n}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(n===cs.PCM&&![8,16,24,32].includes(l))throw new Error(`Unsupported WAVE PCM bit depth (${l}). Only 8, 16, 24, and 32 bits are supported.`);if(n===cs.IEEE_FLOAT&&![32,64].includes(l))throw new Error(`Unsupported WAVE float bit depth (${l}). Only 32 and 64 bits are supported.`);this.audioInfo={format:n,numberOfChannels:s,sampleRate:a,sampleSizeInBytes:Math.ceil(l/8),blockSizeInBytes:o}})}parseListChunk(e,t,i){return Y(this,null,function*(){var r,n,s,a,o,l,c,u,d,h,f;let m=this.reader.requestSlice(e,t);if(ct(m)&&(m=yield m),!m)return;const p=Nl(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=Nl(m,4),t=xl(m,i),p=Tl(m,t);let k=0;for(let i=0;i<p.length&&0!==p[i];i++)k++;const y=String.fromCharCode(...p.subarray(0,k));switch(null!=(r=this.metadataTags).raw||(r.raw={}),this.metadataTags.raw[e]=y,e){case"INAM":case"TITL":null!=(n=this.metadataTags).title||(n.title=y);break;case"TIT3":null!=(s=this.metadataTags).description||(s.description=y);break;case"IART":null!=(a=this.metadataTags).artist||(a.artist=y);break;case"IPRD":null!=(o=this.metadataTags).album||(o.album=y);break;case"IPRT":case"ITRK":case"TRCK":{const e=y.split("/"),t=Number.parseInt(e[0],10),i=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=(l=this.metadataTags).trackNumber||(l.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(c=this.metadataTags).tracksTotal||(c.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||null!=(u=this.metadataTags).date||(u.date=e)}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&(null!=(d=this.metadataTags).date||(d.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":null!=(h=this.metadataTags).genre||(h.genre=y);break;case"ICMT":case"CMNT":case"COMM":null!=(f=this.metadataTags).comment||(f.comment=y)}g+=8+t+(1&t)}})}parseId3Chunk(e,t){return Y(this,null,function*(){let i=this.reader.requestSlice(e,t);if(ct(i)&&(i=yield i),!i)return;const r=Xl(i);if(r){const n=t-Hl;if(r.size=Math.min(r.size,n),r.size>0){const t=i.slice(e+Hl,r.size);$l(t,r,this.metadataTags)}}})}getCodec(){if(oe(this.audioInfo),this.audioInfo.format===cs.MULAW)return"ulaw";if(this.audioInfo.format===cs.ALAW)return"alaw";if(this.audioInfo.format===cs.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===cs.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}oe(!1)}getMimeType(){return Y(this,null,function*(){return"audio/wav"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}const hs=2048;class fs{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.format}getDecoderConfig(){return Y(this,null,function*(){const e=this.demuxer.getCodec();return e?(oe(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null})}getNumberOfChannels(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return oe(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getDisposition(){return H({},Ct)}getPacketAtIndex(e,t){return Y(this,null,function*(){oe(e>=0),oe(this.demuxer.audioInfo);const i=e*hs*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(hs*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(ct(e)&&(e=yield e),!e)return null}let n;if(t.metadataOnly)n=br;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);ct(e)&&(e=yield e),oe(e),n=Tl(e,r)}const s=e*hs/this.demuxer.audioInfo.sampleRate,a=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new Tr(n,"key",s,a,e,r)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getPacket(e,t){return Y(this,null,function*(){oe(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/hs,(this.demuxer.dataSize-1)/(hs*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=yield this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;oe(null===this.demuxer.reader.fileSize);let n=yield this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;n;){const e=yield this.getNextPacket(n,t);if(!e)break;n=e}return n})}getNextPacket(e,t){oe(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/hs);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const ms=e=>{const t=e.filePos,i=Tl(e,9),r=new Bt(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const n=r.readBits(1),s=r.readBits(2)+1,a=r.readBits(4);if(15===a)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const l=r.readBits(13);r.skipBits(11);const c=r.readBits(2)+1;if(1!==c)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===n?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:a,channelConfiguration:o,frameLength:l,numberOfAacFrames:c,crcCheck:u,startPos:t}},ps=1024;class gs extends yr{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new xe,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();oe(this.firstFrameHeader),this.trackBackings=[new ks(this)]}))()})}advanceReader(){return Y(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=Xl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=ms(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=Et[t.samplingFrequencyIndex];oe(void 0!==i);const r=ps/i,n={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(n),this.nextTimestampInSamples+=ps,this.lastLoadedPos=t.startPos+t.frameLength})}getMimeType(){return Y(this,null,function*(){return"audio/aac"})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return Y(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,Hl);if(ct(t)&&(t=yield t),!t)break;const i=Xl(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(ct(r)&&(r=yield r),!r)break;$l(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}})}}class ks{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/ps}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return We}getCodec(){return"aac"}getInternalCodecId(){return oe(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){oe(this.demuxer.firstFrameHeader);const e=_t[this.demuxer.firstFrameHeader.channelConfiguration];return oe(void 0!==e),e}getSampleRate(){oe(this.demuxer.firstFrameHeader);const e=Et[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return oe(void 0!==e),e}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}})}getPacketAtIndex(e,t){return Y(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.dataSize)}return new Tr(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=_e(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1<this.demuxer.loadedSamples.length)return this.getPacketAtIndex(i,t);yield this.demuxer.advanceReader()}}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}class ys extends yr{constructor(e){super(e),this.loadedSamples=[],this.metadataPromise=null,this.trackBacking=null,this.metadataTags={},this.audioInfo=null,this.lastLoadedPos=null,this.blockingBit=null,this.readingMutex=new xe,this.lastSampleLoaded=!1,this.reader=e._reader}getMetadataTags(){return Y(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),oe(this.trackBacking),[this.trackBacking]})}getMimeType(){return Y(this,null,function*(){return"audio/flac"})}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){var e;let t=0;for(;;){let e=this.reader.requestSlice(t,Hl);if(ct(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const i=Xl(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);ct(r)&&(r=yield r),oe(r),$l(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||t<this.reader.fileSize;){let i=this.reader.requestSlice(t,4);if(ct(i)&&(i=yield i),t+=4,null===i)throw new Error(`Metadata block at position ${t} is too small! Corrupted file.`);oe(i);const r=vl(i),n=Pl(i),s=0!==(128&r);switch(127&r){case Si.STREAMINFO:{let e=this.reader.requestSlice(t,n);if(ct(e)&&(e=yield e),oe(e),null===e)throw new Error(`StreamInfo block at position ${t} is too small! Corrupted file.`);const i=Tl(e,34),r=new Bt(i),s=r.readBits(16),a=r.readBits(16),o=r.readBits(24),l=r.readBits(24),c=r.readBits(20),u=r.readBits(3)+1;r.readBits(5);const d=r.readBits(36);r.skipBits(128);const h=new Uint8Array(42);h.set(new Uint8Array([102,76,97,67]),0),h.set(new Uint8Array([128,0,0,34]),4),h.set(i,8),this.audioInfo={numberOfChannels:u,sampleRate:c,totalSamples:d,minimumBlockSize:s,maximumBlockSize:a,minimumFrameSize:o,maximumFrameSize:l,description:h},this.trackBacking=new bs(this);break}case Si.VORBIS_COMMENT:{let e=this.reader.requestSlice(t,n);ct(e)&&(e=yield e),oe(e),Ii(Tl(e,n),this.metadataTags);break}case Si.PICTURE:{let i=this.reader.requestSlice(t,n);ct(i)&&(i=yield i),oe(i);const r=Cl(i),s=Cl(i),a=pe.decode(Tl(i,s)),o=Cl(i),l=pe.decode(Tl(i,o));i.skip(16);const c=Cl(i),u=Tl(i,c);null!=(e=this.metadataTags).images||(e.images=[]),this.metadataTags.images.push({data:u,mimeType:a,kind:3===r?"coverFront":4===r?"coverBack":"unknown",description:l});break}}if(t+=n,s){this.lastLoadedPos=t;break}}if(!this.audioInfo)throw new Error("Missing STREAMINFO metadata block! Corrupted FLAC file.")}))()})}readNextFlacFrame(e){return Y(this,arguments,function*({startPos:e,isFirstPacket:t}){oe(this.audioInfo);const i=this.audioInfo.maximumBlockSize*this.audioInfo.numberOfChannels*4+16+2,r=this.audioInfo.minimumFrameSize||10,n=(this.audioInfo.maximumFrameSize||i)+16,s=yield this.reader.requestSliceRange(e,16,n);if(!s)return null;const a=this.readFlacFrameHeader({slice:s,isFirstPacket:t});if(!a)return null;for(s.filePos=e+r;;){if(s.filePos>s.end-6)return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:s.end-e,isLastFrame:!0};if(255===vl(s)){const t=s.filePos;if(vl(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-a.num!==1){s.filePos=t;continue}}else if(r.num-a.num!==a.blockSize){s.filePos=t;continue}return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:i,isLastFrame:!1}}}})}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=Tl(e,4),n=new Bt(r);if(32764!==n.readBits(15))return null;if(null===this.blockingBit){oe(t);const e=n.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){oe(!t);if(1!==n.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");oe(!t);if(0!==n.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*q(2,e):6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?q(2,e):null)(n.readBits(4));if(!s)return null;oe(this.audioInfo);const a=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(n.readBits(4),this.audioInfo.sampleRate);if(!a)return null;n.readBits(4),n.readBits(3);if(0!==n.readBits(1))return null;const o=(e=>{let t=0;const i=new Bt(Tl(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],n=t-1,s=new Bt(Tl(e,n)),a=8-t-1;for(let o=0;o<a;o++)r.unshift(i.readBits(1));for(let o=0;o<n;o++)for(let e=0;e<8;e++){const t=s.readBits(1);e<2||r.unshift(t)}return r.reduce((e,t,i)=>e|t<<i,0)})(e),l=((e,t)=>"uncommon-u16"===t?Sl(e)+1:"uncommon-u8"===t?vl(e)+1:"number"===typeof t?t:(Oe(t),void oe(!1)))(e,s),c=((e,t)=>"uncommon-u16"===t?Sl(e):"uncommon-u16-10"===t?10*Sl(e):"uncommon-u8"===t?vl(e):"number"===typeof t?t:null)(e,a);if(null===c)return null;if(c!==this.audioInfo.sampleRate)return null;const u=e.filePos-i,d=vl(e);e.skip(-u),e.skip(-1);const h=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(Tl(e,u));return d!==h?null:{num:o,blockSize:l,sampleRate:c}}advanceReader(){return Y(this,null,function*(){yield this.readMetadata(),oe(null!==this.lastLoadedPos),oe(this.audioInfo);const e=this.lastLoadedPos,t=yield this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)})}}class bs{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return We}getTimeResolution(){return oe(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return oe(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}getDisposition(){return H({},Ct)}getDecoderConfig(){return Y(this,null,function*(){return oe(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}})}getPacket(e,t){return Y(this,null,function*(){if(oe(this.demuxer.audioInfo),e<0)return null;const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=Re(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){yield this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],n=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(n+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);yield this.demuxer.advanceReader()}}finally{i()}})}getNextPacket(e,t){return Y(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}getPacketAtIndex(e,t){return Y(this,null,function*(){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=br;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(ct(e)&&(e=yield e),!e)return null;r=Tl(e,i.byteSize)}oe(this.demuxer.audioInfo);const n=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new Tr(r,"key",n,s,e,i.byteSize)})}getFirstPacket(e){return Y(this,null,function*(){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)})}}const Ts=9e4,vs=q(2,33),ws=188,Ss="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",Ps=new Set([133,134,162]),Is=new Set;class xs extends yr{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}readMetadata(){return Y(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){let e=this.reader.requestSlice(0,205);ct(e)&&(e=yield e),oe(e);const t=Tl(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=ws;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,n=!1,s=!1;for(;;){const e=yield this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=yield this.readSection(i,!0,!s);if(!t)break;const a=3,o=32;let l=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i);l=2===e.readBits(8)}}if(0!==t.pid||n)if(t.pid!==r&&!l||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=Bs(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(yield this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new As(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,yield r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=$t(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];oe(t);const i=Jt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const n=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;n>0&&s>0&&(n>s?(e.info.squarePixelWidth=Math.round(e.info.width*n/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/n))),e.info.colorSpace={primaries:ye[i.colourPrimaries],transfer:Te[i.transferCharacteristics],matrix:we[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=ni(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===Lt.SPS_NUT).nalUnits[0];oe(t);const i=ri(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:ye[i.colourPrimaries],transfer:Te[i.transferCharacteristics],matrix:we[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:tr({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(yield r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=yl.tempFromBytes(r.suppliedPacket.data),i=ms(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=_t[i.channelConfiguration],e.info.sampleRate=Et[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=Cl(yl.tempFromBytes(r.suppliedPacket.data)),i=fr(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=kr(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=Ci(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=xi[t.acmod]+t.lfeon,e.info.sampleRate=Mt[t.fscod]}else if("eac3"===e.info.codec){const t=_i(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=Ri(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Fi(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=qi(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:rr({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const n=e.readBits(10),l=e.pos+8*n;let c=!1;for(;e.pos<l;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(5===t&&i>=4){const t=e.readBits(32);c||(c=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=l;8*(r+a)-e.pos>o;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),n=e.pos+8*r;let s=!1,a=!1,o=!1;for(;e.pos<n;){const t=e.readBits(8),i=e.readBits(8),r=e.pos+8*i;if(106===t)s=!0;else if(122===t||204===t)a=!0;else if(123===t)o=!0;else if(5===t&&i>=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let l=null;const u=c&&Ps.has(t)?130:t;switch(u){case 27:case 36:l={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",l={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:a?l={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?l={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(l={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:Is.has(t)||(Pt._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),Is.add(t))}l&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:l,referencePesPackets:[]})}s=!0}else{const e=new Bt(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+a)-e.pos>o;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");n=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!n)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const a of this.elementaryStreams)a.initialized&&("video"===a.info.type?this.trackBackingEntries.push(new _s(a)):this.trackBackingEntries.push(new Rs(a)))}))()})}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),this.trackBackingEntries})}getMetadataTags(){return Y(this,null,function*(){return{}})}getMimeType(){return Y(this,null,function*(){yield this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(yield Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null}))))})}readSection(e,t,i=!1){return Y(this,null,function*(){let r=e,n=e;const s=[];let a,o=0,l=null,c=!0,u=0;for(;;){const e=yield this.readPacket(n);if(n+=this.packetStride,!e)break;if(l){if(e.pid!==l.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;l=e}const a=!!(2&e.adaptationFieldControl),d=!!(1&e.adaptationFieldControl);let h=0;if(a&&(h=1+e.body[0],e===l&&h>1&&(u=e.body[1]>>6&1)),d&&(0===h?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(h)),o+=e.body.byteLength-h)),r=n,!t&&o>=64){c=!1;break}if(-1!==_e(this.sectionEndPositions,r,e=>e)){c=!1;break}}if(c){const e=Re(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!l)return null;if(1===s.length)a=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);a=new Uint8Array(e);let t=0;for(const i of s)a.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:l.pid,payload:a,randomAccessIndicator:u}})}readPacketHeader(e){return Y(this,null,function*(){let t=this.reader.requestSlice(e,4);if(ct(t)&&(t=yield t),!t)return null;if(71!==vl(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=Sl(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:vl(t)>>4&3}})}readPacket(e){return Y(this,null,function*(){let t=this.reader.requestSlice(e,ws);if(ct(t)&&(t=yield t),!t)return null;const i=Tl(t,ws);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}})}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=vs-t?-vs:vs}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e<t?e+i:e}}const Cs=(e,t,i)=>{if(t.payload.byteLength<3)return null;const r=new Bt(t.payload);if(1!==r.readBits(24))return null;const n=r.readBits(8);if(r.skipBits(16),188===n||190===n||191===n||240===n||241===n||255===n||242===n||248===n)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let a=null;if(2===s||3===s)a=0,r.skipBits(4),a+=r.readBits(3)*(1<<30),r.skipBits(1),a+=32768*r.readBits(15),r.skipBits(1),a+=r.readBits(15),a=e.normalizeTimestamp(a);else if(i)throw new Error(Ss);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:a,randomAccessIndicator:t.randomAccessIndicator}},Bs=(e,t,i)=>{oe(null!==t.endPos);const r=Cs(e,t,i);if(!r)return null;const n=new Bt(t.payload);n.skipBits(32);const s=n.readBits(16);n.skipBits(16);const a=n.readBits(8),o=n.pos+8*a;n.pos=o;const l=o/8;oe(Number.isInteger(l));const c=t.payload.subarray(l,s>0?6+s:t.payload.byteLength);return V(H({},r),{data:c})};class Es{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,oe(r instanceof Es),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return We}getDisposition(){return V(H({},Ct),{primary:!1})}getTimeResolution(){return Ts}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return Y(this,null,function*(){return null})}getLiveRefreshInterval(){return Y(this,null,function*(){return null})}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new Tr(i.metadataOnly?br:e.data,r,e.pts/Ts,Math.max(t/Ts,0),e.sequenceNumber,e.data.byteLength)}getFirstPacket(e){return Y(this,null,function*(){const t=this.elementaryStream.firstSection;oe(t);const i=Bs(this.elementaryStream.demuxer,t,!0);oe(i);const r=new As(this.elementaryStream,i),n=new Ms(this,r),s=yield n.readNext();if(!s)return null;const a=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(a,n),this.packetSectionStarts.set(a,s.packet.sectionStartPos),a})}getNextPacket(e,t){return Y(this,null,function*(){let i=this.packetBuffers.get(e);if(i){const r=yield i.readNext();if(!r)return null;this.packetBuffers.delete(e);const n=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(n,i),this.packetSectionStarts.set(n,r.packet.sectionStartPos),n}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const n=this.elementaryStream.demuxer,s=yield n.readSection(r,!0);oe(s);const a=Bs(n,s,!0);oe(a);const o=new As(this.elementaryStream,a);i=new Ms(this,o);const l=e.sequenceNumber;for(;;){const e=yield i.readNext();if(!e)return null;if(e.packet.sequenceNumber>l){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}})}getNextKeyPacket(e,t){return Y(this,null,function*(){let i=e;for(;;){if(i=yield this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}})}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}doPacketLookup(e,t,i){return Y(this,null,function*(){var r,n,s,a,o,l;const c=He(e*Ts),u=this.elementaryStream.demuxer,{reader:d,seekChunkSize:h}=u,f=this.elementaryStream.pid,m=(e,t,i)=>Y(this,null,function*(){let r=e;for(;r<t;){const e=yield u.readPacketHeader(r);if(!e)return null;if(e.pid===f&&1===e.payloadUnitStartIndicator){const e=yield u.readSection(r,i);if(!e)return null;const t=Cs(u,e,!1);if(t&&null!==t.pts)return{pesPacketHeader:t,section:e}}r+=u.packetStride}return null}),p=this.elementaryStream.firstSection;oe(p);const g=Cs(u,p,!0);if(oe(g),c<g.pts)return null;let k;const y=this.elementaryStream.referencePesPackets,b=Re(y,c,e=>e.pts),T=-1!==b?y[b]:null;if(T&&c-T.pts<45e3)k=T.sectionStartPos;else{let e=0;if(null!==d.fileSize){const t=Math.ceil(d.fileSize/h);if(t>1){let i=0,r=t-1;for(e=i;i<=r;){const t=Math.floor((i+r)/2),n=Ke(t*h,u.packetStride)+g.sectionStartPos,s=n+h,a=yield m(n,s,!1);a?a.pesPacketHeader.pts<=c?(e=t,i=t+1):r=t-1:r=t-1}}}k=Ke(e*h,u.packetStride)+g.sectionStartPos}const v=yield m(k,null!=(r=d.fileSize)?r:1/0,!1);let w=null!=(n=null==v?void 0:v.pesPacketHeader)?n:null;w||(w=g);const S=this.getReorderSize(),P=(e,t)=>Y(this,null,function*(){var r,n;const s=yield u.readSection(e,!0);oe(s);const a=Bs(u,s,!0);oe(a);const o=new As(this.elementaryStream,a),l=new Ms(this,o);for(;;){if((null!=(n=null==(r=ce(l.presentationOrderPackets))?void 0:r.pts)?n:-1/0)>=c)break;if(!(yield l.readNextPacket()))break}const d=Ne(l.presentationOrderPackets,t);if(-1===d)return null;const h=l.presentationOrderPackets[d],f=0===d?0:h.pts-l.presentationOrderPackets[d-1].pts;for(;l.decodeOrderPackets[0]!==h;)l.decodeOrderPackets.shift();l.lastDuration=f;const m=yield l.readNext();oe(m);const p=this.createEncodedPacket(m.packet,m.duration,i);return this.packetBuffers.set(p,l),this.packetSectionStarts.set(p,m.packet.sectionStartPos),p});if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=w.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){if(e.pts>c)break e;w=e,Fs(this.elementaryStream,w);break}}}e+=u.packetStride}}e:for(let e=0;e<S+1;e++){let e=w.sectionStartPos-u.packetStride;for(;e>=u.packetOffset;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){w=e;break}}}e-=u.packetStride}}return P(w.sectionStartPos,e=>e.pts<=c)}{let e=k,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let r=null;const n=e<=g.sectionStartPos;let k,y=null;if(n)k=g,y=p;else{const t=yield m(e,null!=(s=d.fileSize)?s:1/0,i);k=null!=(a=null==t?void 0:t.pesPacketHeader)?a:null,y=null!=(o=null==t?void 0:t.section)?o:null}let b=!1,T=0;e:for(;k&&!(null!==t&&k.sectionStartPos>=t);){if(k.pts<=c){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===k.randomAccessIndicator;else{oe(y);const t=Bs(u,y,!0);oe(t);const i=new As(this.elementaryStream,t);yield i.markNextPacket(),e=1===(null==(l=i.suppliedPacket)?void 0:l.randomAccessIndicator)}e&&(r=k)}if(k.pts>c&&(b=!0),b&&(T++,T>S))break;let e=k.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,i);if(t){const e=Cs(u,t,!1);if(e&&null!==e.pts){k=e,y=t,Fs(this.elementaryStream,k);break}}}e+=u.packetStride}}if(r){let e=r;if(0===T)e:for(let r=0;r<S;r++){let t=e.sectionStartPos-u.packetStride;for(;t>=u.packetOffset;){const r=yield u.readPacketHeader(t);if(!r)break e;if(r.pid===f&&1===r.payloadUnitStartIndicator){const r=yield u.readSection(t,i);if(r){const t=Cs(u,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=u.packetStride}}const t=yield P(e.sectionStartPos,e=>e.pts<=c&&1===e.randomAccessIndicator);return oe(t),t}if(n)return null;t=e,e=Math.max(Ke(e-g.sectionStartPos-h,u.packetStride)+g.sectionStartPos,g.sectionStartPos)}}})}}class _s extends Es{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}getColorSpace(){return Y(this,null,function*(){return this.elementaryStream.info.colorSpace})}canBeTransparent(){return Y(this,null,function*(){return!1})}getDecoderConfig(){return Y(this,null,function*(){return oe(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Rs extends Es{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}getDecoderConfig(){return Y(this,null,function*(){return oe(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const Fs=(e,t)=>{const i=e.referencePesPackets,r=Re(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const n=i[r];if(t.pts<=n.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-n.sectionStartPos<s)return!1;if(r<i.length-1){const e=i[r+1];if(e.pts<t.pts)return!1;if(e.sectionStartPos-t.sectionStartPos<s)return!1}}return i.splice(r+1,0,t),!0};class As{constructor(e,t){this.currentPos=0,this.pesPackets=[],this.currentPesPacketIndex=0,this.currentPesPacketPos=0,this.endPos=0,this.lastSuppliedPesPacket=null,this.nextPts=null,this.suppliedPacket=null,this.elementaryStream=e,this.pid=e.pid,this.demuxer=e.demuxer,this.startingPesPacket=t}ensureBuffered(e){const t=this.endPos-this.currentPos;return t>=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return oe(e),e}bufferData(e){return Y(this,null,function*(){const t=this.endPos+e;for(;this.endPos<t;){let e;if(0===this.pesPackets.length)e=this.startingPesPacket;else{let t=ce(this.pesPackets).sectionEndPos;for(oe(null!==t);;){const i=yield this.demuxer.readPacketHeader(t);if(!i)return;if(i.pid===this.pid){const i=yield this.demuxer.readSection(t,!0);if(!i)return;const r=Bs(this.demuxer,i,!1);if(r){e=r;break}}t+=this.demuxer.packetStride}}this.pesPackets.push(e),this.endPos+=e.data.byteLength}})}readBytes(e){const t=this.getCurrentPesPacket(),i=this.currentPos-this.currentPesPacketPos,r=i+e;if(this.currentPos+=e,r<=t.data.byteLength)return t.data.subarray(i,r);const n=new Uint8Array(e);n.set(t.data.subarray(i));let s=t.data.byteLength-i;for(;;){this.advanceCurrentPacket();const t=this.getCurrentPesPacket(),i=e-s;if(i<=t.data.byteLength){n.set(t.data.subarray(0,i),s);break}n.set(t.data,s),s+=t.data.byteLength}return n}readU8(){let e=this.getCurrentPesPacket();const t=this.currentPos-this.currentPesPacketPos;return this.currentPos++,t<e.data.byteLength?e.data[t]:(this.advanceCurrentPacket(),e=this.getCurrentPesPacket(),e.data[0])}seekTo(e){if(e!==this.currentPos){if(e<this.currentPos)for(;e<this.currentPesPacketPos;){this.currentPesPacketIndex--;const e=this.getCurrentPesPacket();this.currentPesPacketPos-=e.data.byteLength}else for(;;){const t=this.getCurrentPesPacket();if(e<this.currentPesPacketPos+t.data.byteLength)break;this.currentPesPacketPos+=t.data.byteLength,this.currentPesPacketIndex++}this.currentPos=e}}skip(e){this.seekTo(this.currentPos+e)}advanceCurrentPacket(){this.currentPesPacketPos+=this.getCurrentPesPacket().data.byteLength,this.currentPesPacketIndex++}markNextPacket(){return Y(this,null,function*(){var e,t,i;oe(!this.suppliedPacket);const r=this.elementaryStream;if("video"===r.info.type){const e=r.info.codec,t=1024;if("avc"!==e&&"hevc"!==e)throw new Error("Unhandled.");const i="avc"===e?1:2;let n=null,s=!1,a=0;for(;;){let r=this.ensureBuffered(t);if(ct(r)&&(r=yield r),0===r)break;const o=this.currentPos,l=this.readBytes(r),c=l.byteLength;let u=0;for(;u<c;){const t=l.indexOf(0,u);if(-1===t||t>=c)break;u=t;const r=o+u;if(u+3>=c){this.seekTo(r);break}const d=l[u+1],h=l[u+2],f=l[u+3];let m=0;if(0===d&&0===h&&1===f?m=4:0===d&&1===h&&(m=3),0===m){u++;continue}const p=r;null!=n||(n=p);const g=u+m,k=g+i,y=6;if(k+("avc"===e?y:1)>c){this.seekTo(r);break}const b=l[g];let T,v,w;if("avc"===e)T=Ht(b),v=T===Nt.NON_IDR_SLICE||T===Nt.SLICE_DPA||T===Nt.IDR,w=T===Nt.SEI||T===Nt.SPS||T===Nt.PPS||T===Nt.AUD;else{T=ii(b);if(((1&b)<<5|l[g+1]>>3)>0){u+=m;continue}v=T<=Lt.RASL_R||T>=Lt.BLA_W_LP&&T<=21,w=T>=Lt.VPS_NUT&&T<=37||T===Lt.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let S=!1;if(v){let t;if("avc"===e){const e=l.subarray(k,k+y),i=ue(new Bt(e));t=!s||i<=a,a=i}else t=l[k]>>7===1;t&&(s?S=!0:s=!0)}else w&&s&&(S=!0);if(S){const e=p-n;return this.seekTo(n),this.supplyPacket(e,0)}u+=m}if(r<t)break}if(null!==n&&this.endPos>n){const e=this.endPos-n;return this.seekTo(n),this.supplyPacket(e,0)}}else{const n=r.info.codec,s=128;for(;;){let a=this.ensureBuffered(s);ct(a)&&(a=yield a);const o=this.currentPos;for(;this.currentPos-o<a;){const s=this.readU8();if("aac"===n){if(255!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(9);if(ct(t)&&(t=yield t),t<9)return;const i=this.readBytes(9),n=ms(yl.tempFromBytes(i));if(n){this.seekTo(e);let t=this.ensureBuffered(n.frameLength);return ct(t)&&(t=yield t),this.supplyPacket(t,Math.round(9216e4/r.info.sampleRate))}this.seekTo(e+1)}else{if("mp3"!==n){if("ac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(ct(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=i[4]>>6,a=63&i[4];if(3===n||a>37){this.seekTo(e+1);continue}const o=Bi[3*a+n];oe(void 0!==o),this.seekTo(e),t=this.ensureBuffered(o),ct(t)&&(t=yield t);const l=Math.round(13824e4/r.info.sampleRate);return this.supplyPacket(t,l)}if("eac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(ct(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=2*(((7&i[2])<<8|i[3])+1),a=3===i[4]>>6?3:i[4]>>4&3,o=Ei[a];this.seekTo(e),t=this.ensureBuffered(n),ct(t)&&(t=yield t);const l=256*o,c=Math.round(l*Ts/r.info.sampleRate);return this.supplyPacket(t,c)}if("dts"===n){if(127!==s&&100!==s)continue;this.skip(-1);const n=this.currentPos;let a=this.ensureBuffered(18);if(ct(a)&&(a=yield a),a<18)return;const o=this.readBytes(18),l=Hi(o);let c=l?null:Vi(o);if(!l&&!c){this.seekTo(n+1);continue}if(c&&!c.asset){this.seekTo(n);const t=Math.min(c.frameSize,4096);let i=this.ensureBuffered(t);ct(i)&&(i=yield i),c=null!=(e=Vi(this.readBytes(i)))?e:c}let u=l?l.frameSize:c.frameSize;if(l){let e=4*Math.ceil(l.frameSize/4);for(;;){this.seekTo(n);const t=e+10;let i=this.ensureBuffered(t);if(ct(i)&&(i=yield i),i<t)break;this.seekTo(n+e);const r=Vi(this.readBytes(10));if(!r)break;e+=r.frameSize,u=e}}const d=null!=(i=null==l?void 0:l.sampleCount)?i:null==(t=c.asset)?void 0:t.sampleCount;if(void 0===d){this.seekTo(n+1);continue}this.seekTo(n),a=this.ensureBuffered(u),ct(a)&&(a=yield a);const h=Math.round(d*Ts/r.info.sampleRate);return this.supplyPacket(a,h)}throw new Error("Unhandled.")}{if(255!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(4);if(ct(t)&&(t=yield t),t<4)return;const i=this.readBytes(4),n=me(i).getUint32(0),a=fr(n,null);if(a.header){this.seekTo(e);let t=this.ensureBuffered(a.header.totalSize);ct(t)&&(t=yield t);const i=a.header.audioSamplesInFrame*Ts/r.info.sampleRate;return this.supplyPacket(t,Math.round(i))}this.seekTo(e+1)}}}if(a<s)break}}})}supplyPacket(e,t){const i=this.getCurrentPesPacket();let r;if(this.lastSuppliedPesPacket===i)oe(null!==this.nextPts),r=this.nextPts;else{if(null===i.pts)throw new Error(Ss);r=i.pts,Fs(this.elementaryStream,i)}this.lastSuppliedPesPacket=i,this.nextPts=r+t;const n=i.sectionStartPos,s=n+(this.currentPos-this.currentPesPacketPos),a=this.readBytes(e);let o=i.randomAccessIndicator;if(0===o&&!this.elementaryStream.canBeTrustedWithKeyPackets)if("audio"===this.elementaryStream.info.type)o=1;else if(this.elementaryStream.info.decoderConfig){const e="key"===wi(this.elementaryStream.info.codec,this.elementaryStream.info.decoderConfig,a);o=Number(e)}this.suppliedPacket={pts:r,data:a,sequenceNumber:s,sectionStartPos:n,randomAccessIndicator:o},this.pesPackets.splice(0,this.currentPesPacketIndex),this.currentPesPacketIndex=0}}class Ms{constructor(e,t){this.decodeOrderPackets=[],this.reorderBuffer=[],this.presentationOrderPackets=[],this.reachedEnd=!1,this.lastDuration=0,this.backing=e,this.context=t,this.reorderSize=e.getReorderSize(),oe(this.reorderSize>=0)}readNext(){return Y(this,null,function*(){if(0===this.decodeOrderPackets.length){if(!(yield this.readNextPacket()))return null}yield this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(oe(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}})}readNextPacket(){return Y(this,null,function*(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||(yield this.context.markNextPacket()),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)})}ensureCurrentPacketHasNext(){return Y(this,null,function*(){const e=this.decodeOrderPackets[0];for(oe(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(yield this.readNextPacket()))break}})}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;i<this.reorderBuffer.length;i++)this.reorderBuffer[i].pts<this.reorderBuffer[e].pts&&(e=i);const t=this.reorderBuffer[e];this.presentationOrderPackets.push(t),this.reorderBuffer.splice(e,1)}}flushReorderBuffer(){this.reorderBuffer.sort((e,t)=>e.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const Ds="application/vnd.apple.mpegurl",Ns="#EXT-X-STREAM-INF:",Os="#EXT-X-I-FRAME-STREAM-INF:",Ls="#EXT-X-MEDIA:",zs="#EXTINF:",Us="#EXT-X-MAP:",qs="#EXT-X-KEY:",Ws="#EXT-X-MEDIA-SEQUENCE:",Hs="#EXT-X-BYTERANGE:",Vs="#EXT-X-PROGRAM-DATE-TIME:",js="#EXT-X-TARGETDURATION:",Ks="#EXT-X-PLAYLIST-TYPE:",Xs=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class $s{constructor(e){this._attributes={};let t="",i="",r=!1,n=!1;for(let s=0;s<e.length;s++){const a=e[s];'"'===a?n=!n:"="!==a||r||n?","!==a||n?r?i+=a:t+=a:(t&&(this._attributes[t.trim().toLowerCase()]=i),t="",i="",r=!1):r=!0}t&&(this._attributes[t.trim().toLowerCase()]=i)}get(e){var t;return null!=(t=this._attributes[e.toLowerCase()])?t:null}getAsNumber(e){const t=this.get(e);if(null===t)return null;const i=Number(t);return Number.isFinite(i)?i:null}merge(e){Object.assign(this._attributes,e._attributes)}}class Gs{constructor(e,t,i){this.nextInputCacheAge=0,this.inputCache=[],this.trackBackingsPromise=null,this.firstSegment=null,this.firstSegmentFirstTimestamps=new WeakMap,this.firstTimestampCache=new WeakMap,this.input=e,this.path=t,this.trackDeclarations=i}getDurationFromMetadata(e){return Y(this,null,function*(){const t=yield this.getSegmentAt(1/0,{skipLiveWait:e.skipLiveWait});return t?t.timestamp+t.duration:null})}getUnixTimeForTimestamp(e){return Y(this,null,function*(){let t=yield this.getSegmentAt(e,{});if(null!=t||(t=yield this.getFirstSegment({})),!t||null===t.unixEpochTimestamp)return null;const i=e-t.timestamp;return t.unixEpochTimestamp+i})}getTrackBackings(){return Y(this,null,function*(){var e;return null!=(e=this.trackBackingsPromise)?e:this.trackBackingsPromise=(()=>Y(this,null,function*(){const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=gt(e,e=>"video"===e.getType())+1;e.push(new Ys(this,t,i))}else if("audio"===t.type){const i=gt(e,e=>"audio"===e.getType())+1;e.push(new Js(this,t,i))}}else{if(this.firstSegment=yield this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=yield t.getTracks();for(const r of i)if("video"===r.type){const t=gt(e,e=>"video"===e.getType())+1;e.push(new Ys(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=gt(e,e=>"audio"===e.getType())+1;e.push(new Js(this,{id:e.length+1,type:"audio"},t))}}return e}))()})}getFirstTimestampForInput(e){return Y(this,null,function*(){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=yield e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i})}getMediaOffset(e,t){return Y(this,null,function*(){var i;const r=null!=(i=e.firstSegment)?i:e;let n;if(this.firstSegmentFirstTimestamps.has(r))n=this.firstSegmentFirstTimestamps.get(r);else{const e=this.getInputForSegment(r);n=yield this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(r,n)}if(r===e)return r.timestamp-n;const s=yield this.getFirstTimestampForInput(t),a=e.timestamp-r.timestamp,o=s-n-a;return Math.abs(o)<=Math.min(.25,a)?r.timestamp-n:e.timestamp-s})}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class Qs{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>Y(this,null,function*(){var e,t;if(null!=(e=this.segmentedInput).firstSegment||(e.firstSegment=yield this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let i=this.segmentedInput.firstSegment,r=null;for(;i;){const e=this.segmentedInput.getInputForSegment(i);if(r=null!=(t=(yield e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number))?t:null,r)break;i=yield this.segmentedInput.getNextSegment(i,{})}if(!r)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=r,this.firstSegment=i}))()}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}getHasOnlyKeyPackets(){return this.delegate(()=>{var e,t,i;return null!=(i=null==(t=(e=this.firstInputTrack._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:null})}getPairingMask(){return BigInt("1")}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}isRelativeToUnixEpoch(){return Y(this,null,function*(){return yield this.hydrate(),oe(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp})}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}createAdjustedPacket(e,t,i){return Y(this,null,function*(){oe(e.sequenceNumber>=0),oe(this.segmentedInput.firstSegment);const r=yield this.segmentedInput.getMediaOffset(t,i.input),n=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:je(e.timestamp+r,yield i.getTimeResolution()),sequenceNumber:Math.floor(1e8*n)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s})}getFirstPacket(e){return Y(this,null,function*(){var t;yield this.hydrate(),oe(this.firstInputTrack),oe(this.firstSegment);let i=this.firstInputTrack,r=this.firstSegment;for(;;){if(i){const t=yield i._backing.getFirstPacket(e);if(t)return this.createAdjustedPacket(t,r,i)}if(r=yield this.segmentedInput.getNextSegment(r,{skipLiveWait:e.skipLiveWait}),!r)break;const n=this.segmentedInput.getInputForSegment(r);i=null!=(t=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number))?t:null}return null})}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}_getNextInternal(e,t,i){return Y(this,null,function*(){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const n=i?yield r.track._backing.getNextKeyPacket(r.sourcePacket,t):yield r.track._backing.getNextPacket(r.sourcePacket,t);if(n)return this.createAdjustedPacket(n,r.segment,r.track);let s=r.segment;for(;;){const e=yield this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),n=(yield i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!n){s=e;continue}const a=yield n._backing.getFirstPacket(t);return a?this.createAdjustedPacket(a,e,n):null}})}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}_getPacketInternal(e,t,i){return Y(this,null,function*(){let r=yield this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(yield this.hydrate();r;){const n=this.segmentedInput.getInputForSegment(r),s=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const a=yield this.segmentedInput.getMediaOffset(r,n),o=e-a,l=i?yield s._backing.getKeyPacket(o,t):yield s._backing.getPacket(o,t);if(l)return this.createAdjustedPacket(l,r,s);r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null})}}class Ys extends Qs{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}getColorSpace(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())})}canBeTransparent(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())})}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}class Js extends Qs{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}getDecoderConfig(){return Y(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}ft();const Zs=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class ea extends 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new ga(this,e,t)}_dispatchRead(e,t){var i;null==(i=this.onread)||i.call(this,e,t),this._emit("read",{start:e,end:t})}ref(){return new ta(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class ta{constructor(e){var t;if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),null==(t=e._refFinalizationRegistry)||t.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){var e;if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const t=this.source;oe(t._refCount>0),t._decrementRefCount(),null==(e=t._refFinalizationRegistry)||e.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class ia extends ea{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof ea||e instanceof ta))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof ea?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return ct(t)?t.then(i):i(t)}}const ra=(e,t)=>e.path===t.path;class na extends ia{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof ea?e.ref():e;return this._root=t,this._rootRequest=null,t};ct(e)?this._rootRequest=e.then(t):(t(e),oe(this._root))}if(this._rootRequest)return this._rootRequest.then(n=>n.source._read(e,t,i,r))}return 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navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return Pt._warn("Request will not be retried because a CORS error was suspected due to different origins. 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The used fetch function must provide the response body as a ReadableStream.");if(206!==n.status){if(this._sequentialBacking)return void n.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||ca.has(e.origin)||(Pt._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. 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With ReadableStreamSource, you must access the data more sequentially or increase the size of its cache.",this._stream=e,this._maxCacheSize=null!=(i=t.maxCacheSize)?i:32*q(2,20),this._handleUnhandledError=t.handleUnhandledError}_getFileSize(){return this._endIndex}_read(e,t){if(null!==this._endIndex&&t>this._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=Re(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let n=e;const s=new Uint8Array(t-e);if(-1!==i)for(let c=i;c<this._cache.length;c++){const i=this._cache[c];if(i.start>=t)break;const r=Math.max(e,i.start);r>n&&this._throwDueToCacheMiss();const a=Math.min(t,i.end);r<a&&(s.set(i.bytes.subarray(r-i.start,a-i.start),r-e),n=a)}if(n===t)return{bytes:s,view:me(s),offset:e};this._currentIndex>n&&this._throwDueToCacheMiss();const{promise:a,resolve:o,reject:l}=Ae();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:l}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),a}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}_pull(){return Y(this,null,function*(){for(null!=this._reader||(this._reader=this._stream.getReader());this._currentIndex<this._targetIndex&&!this._disposed;){const{done:e,value:t}=yield this._reader.read();if(e){for(const e of this._pendingSlices)e.resolve(null);this._pendingSlices.length=0,this._endIndex=this._currentIndex;break}const i=this._currentIndex,r=this._currentIndex+t.byteLength;this._dispatchRead(i,r);for(let n=0;n<this._pendingSlices.length;n++){const e=this._pendingSlices[n],s=Math.max(i,e.start),a=Math.min(r,e.end);s<a&&(e.bytes.set(t.subarray(s-i,a-i),s-e.start),a===e.end&&(e.resolve({bytes:e.bytes,view:me(e.bytes),offset:e.start}),this._pendingSlices.splice(n,1),n--))}for(this._cache.push({start:i,end:r,bytes:t,view:me(t),age:0});this._cache.length>0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1})}_dispose(){var e;for(const t of this._pendingSlices)t.reject(new gl);this._pendingSlices.length=0,this._cache.length=0,null==(e=this._reader)||e.cancel()}}const ma={fileSystem:(e,t)=>{const i=q(2,16);return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=q(2,16);e=Math.max(0,Math.floor((e-r)/r)*r);for(const n of i){const i=8*q(2,20),r=Math.max((n.startPos+n.targetPos)/2,n.targetPos-i);if(dt(e,t,r,n.targetPos)){const e=n.targetPos-n.startPos,r=Math.ceil((e+1)/i)*i,s=q(2,Math.ceil(Math.log2(e+1))),a=Math.min(s,r);t=Math.max(t,n.startPos+a)}}return{start:e,end:t=Math.max(t,e+oa)}}};class pa{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){var n;oe(!this.disposed);const s=this.options.prefetchProfile(e,t,this.workers),a=Math.max(s.start,i),o=Math.min(s.end,null!=(n=this.fileSize)?n:1/0,r);oe(a<=e&&t<=o);let l=null;const c=Re(this.cache,e,e=>e.start),u=-1!==c?this.cache[c]:null;u&&u.start<=e&&t<=u.end&&(u.age=this.nextAge++,l={bytes:u.bytes,view:u.view,offset:u.start});const d=Re(this.cache,a,e=>e.start),h=l?null:new Uint8Array(t-e);let f=0,m=a;const p=[];if(-1!==d){for(let i=d;i<this.cache.length;i++){const r=this.cache[i];if(r.start>=o)break;if(r.end<=a)continue;const n=Math.max(a,r.start),s=Math.min(o,r.end);if(oe(n<=s),m<n&&p.push({start:m,end:n}),m=s,h){const i=Math.max(e,r.start),n=Math.min(t,r.end);if(i<n){const t=i-e;h.set(r.bytes.subarray(i-r.start,n-r.start),t),t===f&&(f=n-e)}}r.age=this.nextAge++}m<o&&p.push({start:m,end:o})}else p.push({start:a,end:o});if(h&&f>=h.length&&(l={bytes:h,view:me(h),offset:e}),0===p.length)return oe(l),l;const{promise:g,resolve:k,reject:y}=Ae(),b=[];for(const v of p){const i=Math.max(e,v.start),r=Math.min(t,v.end);i===v.start&&r===v.end?b.push(v):i<r&&b.push({start:i,end:r})}const T=h&&{start:e,bytes:h,holes:b,resolve:k,reject:y};e:for(const v of p){for(const i of this.workers){if(this.checkHoleAgainstWorker(i,v,T?[T]:[])){this.checkQueuedReadsAgainstWorker(i);continue e}}const e=v.end<o||null!==this.fileSize,t=this.createWorker(v.start,v.end,e);if(t)T&&(t.pendingSlices=[T]),this.runWorker(t);else{let t=Re(this.queuedReads,v.start,e=>e.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&v.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,v.end),i.strictTarget&&(i.strictTarget=e),T&&i.pendingSlices.push(T)):(t++,i={hole:{start:v.start,end:v.end},strictTarget:e,pendingSlices:T?[T]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1<this.queuedReads.length;){const e=this.queuedReads[t+1];if(e.hole.start>i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return l?g.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(oe(h),l=g.then(t=>t&&{bytes:t,view:me(t),offset:e})),l}checkHoleAgainstWorker(e,t,i){const r=q(2,17);if(dt(t.start-r,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t<i.length;t++){const r=i[t];e.pendingSlices.includes(r)||e.pendingSlices.push(r)}return e.running||this.runWorker(e),!0}return!1}checkQueuedReadsAgainstWorker(e){let t=!1;for(let i=0;i<this.queuedReads.length;i++){const r=this.queuedReads[i];if(this.checkHoleAgainstWorker(e,r.hole,r.pendingSlices))this.queuedReads.splice(i,1),i--,t=!0;else if(t)break}}createWorker(e,t,i){var r,n;if(this.workers.length>=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i<this.workers.length;i++){const r=this.workers[i];r.running||0!==r.pendingSlices.length||e&&!(r.age<e.age)||(t=i,e=r)}if(!e)return null;oe(null!==t),oe(0===e.pendingSlices.length),this.workers.splice(t,1),null==(n=(r=this.options).onIdleWorkerRemoved)||n.call(r,e)}const s={startPos:e,currentPos:e,targetPos:t,strictTarget:i,running:!1,aborted:this.disposed,pendingSlices:[],age:this.nextAge++};return this.workers.push(s),s}runWorker(e){oe(!e.running),oe(e.currentPos<e.targetPos),e.running=!0,e.age=this.nextAge++,this.options.runWorker(e).catch(t=>{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;r<this.queuedReads.length;r++){this.queuedReads[r].age<this.queuedReads[e].age&&(e=r)}const t=this.queuedReads[e],i=this.createWorker(t.hole.start,t.hole.end,t.strictTarget);if(!i)return;this.queuedReads.splice(e,1),i.pendingSlices=t.pendingSlices,this.runWorker(i)}})}supplyWorkerData(e,t){var i,r;oe(!e.aborted);const n=e.currentPos,s=n+t.length;this.insertIntoCache({start:n,end:s,bytes:t,view:me(t),age:this.nextAge++}),e.currentPos+=t.length,e.currentPos>e.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;a<e.pendingSlices.length;a++){const i=e.pendingSlices[a],r=Math.max(n,i.start),o=Math.min(s,i.start+i.bytes.length);r<o&&i.bytes.set(t.subarray(r-n,o-n),r-i.start);for(let e=0;e<i.holes.length;e++){const t=i.holes[e];n<=t.start&&s>t.start&&(t.start=s),t.end<=t.start&&(i.holes.splice(e,1),e--)}0===i.holes.length&&(i.resolve(i.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;a<this.workers.length;a++){const t=this.workers[a];e===t||t.running||dt(n,s,t.currentPos,t.targetPos)&&(this.workers.splice(a,1),null==(r=(i=this.options).onIdleWorkerRemoved)||r.call(i,t),a--)}}supplyFileSize(e){oe(null===this.fileSize),this.fileSize=e;for(const t of this.workers){t.targetPos=Math.min(t.targetPos,e),t.strictTarget=!0;for(let i=0;i<t.pendingSlices.length;i++){const r=t.pendingSlices[i];for(const n of r.holes)if(n.end>e){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t<this.queuedReads.length;t++){const i=this.queuedReads[t];if(i.hole.start>=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t<i.pendingSlices.length;t++){const r=i.pendingSlices[t];r.start>=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){var t,i;const r=this.workers.indexOf(e);oe(-1!==r),e.running=!1,this.workers.splice(r,1),null==(i=(t=this.options).onIdleWorkerRemoved)||i.call(t,e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const n of e.pendingSlices)n.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=Re(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=me(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i<this.cache.length;i++){const t=this.cache[i];if(e.end<=t.start)break;if(e.end>=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=me(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;i<this.cache.length;i++){const r=this.cache[i];r.age<t.age&&(e=i,t=r)}if(this.currentCacheSize-t.bytes.length<=this.options.maxCacheSize)break;this.cache.splice(e,1),this.currentCacheSize-=t.bytes.length}}dispose(){var e,t;for(const i of this.workers){for(const e of i.pendingSlices)e.reject(new gl);i.pendingSlices.length=0,i.aborted=!0,i.running||null==(t=(e=this.options).onIdleWorkerRemoved)||t.call(e,i)}for(const i of this.queuedReads)for(const e of i.pendingSlices)e.reject(new gl);this.workers.length=0,this.cache.length=0,this.queuedReads.length=0,this.disposed=!0}}class ga extends ea{constructor(e,t,i){if(super(),this._ref=null,e._disposed)throw new Error("Cannot create a slice of a disposed source.");this._baseSource=e,this._offset=t,this._length=null!=i?i:null}_getFileSize(){var e;const t=this._baseSource._getFileSize();return void 0===t?null!==this._length?this._length:void 0:null===t?null!==this._length?this._length:null:qe(t-this._offset,0,null!=(e=this._length)?e:1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const n=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return ct(n)?n.then(s):s(n)}_dispose(){var e;null==(e=this._ref)||e.free()}ref(){return null!=this._ref||(this._ref=this._baseSource.ref()),super.ref()}}var ka=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,n;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},ya=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const ba=/^0[xX][0-9a-fA-F]+$/,Ta=/^data:.*;base64,/i;class va extends Gs{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){var e;return null!=(e=this.currentUpdateSegmentsPromise)?e:this.currentUpdateSegmentsPromise=(()=>Y(this,null,function*(){try{const e=this.getRemainingWaitTimeMs();e>0&&(yield Tt(e)),this.lastSegmentUpdateTime=performance.now(),yield this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}}))()}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}updateSegments(){return Y(this,null,function*(){var e,t,i,r,n,s,a,o;let l=this.nextLines;if(this.nextLines=null,!l){const e={stack:[],error:void 0,hasError:!1};try{const t=ka(e,yield this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),i=new kl(t.source),r=yield i.requestEntireFile();oe(r),l=Ol(r,r.length,{ignore:Xs}),t.source instanceof ia&&(this.rootPath=t.source.rootPath)}catch(x){e.error=x,e.hasError=!0}finally{ya(e)}}const c=!1!==(null==(e=this.input._formatOptions.hls)?void 0:e.offsetTimestampsByDateTime);let u=!1,d=0,h=null,f=null,m=null,p=0,g=null,k=null,y=null,b=null,T=null,v=null,w=!1,S=null!=(t=ce(this.segments))?t:null;const P=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},I=e=>{p=e,S&&(oe(null!==S.sequenceNumber),S.sequenceNumber<e&&(d=S.timestamp+S.duration,g=S.firstSegment,k=S.initSegment,T=S.lastProgramDateTimeSeconds,h=null!==S.unixEpochTimestamp?S.unixEpochTimestamp+S.duration:null,S=null))};for(let C=0;C<l.length;C++){const e=l[C];if(u){if(!e.startsWith("#")){if(!S){if(null===f)throw new Error("Invalid M3U8 file; a segment must be preceded by an #EXTINF tag.");let t=m;if(t&&"AES-128"===t.method&&!t.iv){const e=new Uint8Array(Er),i=me(e);i.setUint32(8,Math.floor(p/q(2,32))),i.setUint32(12,p),t=V(H({},t),{iv:e})}const n={path:pt(this.rootPath,e),offset:null!=(i=null==b?void 0:b.offset)?i:0,length:null!=(r=null==b?void 0:b.length)?r:null},s={timestamp:d,unixEpochTimestamp:h,firstSegment:g,sequenceNumber:p,location:n,duration:f,encryption:t,initSegment:k,lastProgramDateTimeSeconds:T};null!=g||(g=s),d+=f,null!==h&&(h+=f),this.segments.push(s)}f=null,null===b?y=null:b=null,I(p+1)}if(e.startsWith(zs)){if(S){w=!0;continue}w||(null===T&&p>0&&null!==v&&(d=p*v),w=!0);const t=e.slice(8),i=t.indexOf(","),r=-1===i?t:t.slice(0,i),n=Number(r);if(!Number.isFinite(n)||n<0)throw new Error(`Invalid #EXTINF tag duration '${r}'.`);f=n}else if(e.startsWith(Us)){const t=new $s(e.slice(11)),i=t.get("uri");if(!i)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const r=t.get("byterange");let a=null;if(null!==r&&(a=P(r)),a&&null===a.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!S){const e={path:pt(this.rootPath,i),offset:null!=(n=null==a?void 0:a.offset)?n:0,length:null!=(s=null==a?void 0:a.length)?s:null};if("AES-128"===(null==m?void 0:m.method)&&!m.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");k={timestamp:d,unixEpochTimestamp:h,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:m,initSegment:null,lastProgramDateTimeSeconds:T}}f=null,null===b?y=null:b=null}else if(e.startsWith(qs)){const t=new $s(e.slice(11)),i=t.get("method");if("NONE"===i)m=null;else if("AES-128"===i){const e=t.get("uri");if(!e)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=t.get("iv");if(r){if(!ba.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Er);for(let t=0;t<Er;t++){const r=-32+t;i[t]=parseInt(e.slice(r,r+2),16)}}const n=null!=(a=t.get("keyformat"))?a:"identity";if("identity"!==n)throw new Error("For AES-128 encryption, only the 'identity' KEYFORMAT is currently supported. If you think other formats should be supported, please raise an issue.");m={method:"AES-128",keyUri:pt(this.rootPath,e),iv:i,keyFormat:n}}else{if("SAMPLE-AES"!==i&&"SAMPLE-AES-CTR"!==i)throw new Error(`Unsupported encryption method '${i}'. If you think this method should be supported, please raise an issue.`);{const e=t.get("uri");if(!e)throw new Error(`Invalid #EXT-X-KEY: ${i} requires a URI attribute.`);if("identity"===(null!=(o=t.get("keyformat"))?o:"identity"))throw new Error("For SAMPLE-AES and SAMPLE-AES-CTR encryption, the 'identity' KEYFORMAT is not supported. If you think this format should be supported, please raise an issue.");let r=null;if(Ta.test(e)){const t=e.indexOf(","),i=ht(e.slice(t+1));if(i.length>=8&&112===i[4]&&115===i[5]&&115===i[6]&&104===i[7]){const e=me(i).getUint32(0);r=vr(i.subarray(8,Math.min(e,i.length)))}}m={method:i,psshBox:r}}}}else if(e.startsWith(Ws)){const t=e.slice(22),i=Number(t);if(!Number.isInteger(i)||i<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${t}'.`);I(i)}else if(e.startsWith(Hs)){const t=P(e.slice(17));if(null===t.offset){if(null===y)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");t.offset=y}b=t,y=t.offset+t.length}else if(e.startsWith(Vs)){if(S)continue;const t=e.slice(25),i=Date.parse(t);if(!Number.isFinite(i))continue;const r=i/1e3;if(T===r)continue;if(null===T&&this.segments.length>0){const e=ce(this.segments),t=r-(e.timestamp+e.duration);for(const i of this.segments)i.unixEpochTimestamp=i.timestamp+t,c&&(i.timestamp=i.unixEpochTimestamp)}T=r,h=r,c&&(d=r)}else if("#EXT-X-DISCONTINUITY"===e)g=null;else if(e.startsWith(js)){const t=e.slice(22),i=Number(t);if(!Number.isFinite(i)||i<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${t}'.`);this.refreshInterval=i,v=i}else{if("#EXT-X-ENDLIST"===e){this.streamHasEnded=!0;break}if(e.startsWith(Ks)){"vod"===e.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==e)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");u=!0}}if(!u)throw new Error("Invalid M3U8 file; no #EXTM3U header.")})}getFirstSegment(){return Y(this,null,function*(){var e;return 0===this.segments.length&&(yield this.runUpdateSegments()),null!=(e=this.segments[0])?e:null})}getSegmentAt(e,t){return Y(this,null,function*(){0===this.segments.length&&(yield this.runUpdateSegments());let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=Re(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r<this.segments.length-1||this.streamHasEnded||i)return this.segments[r];const n=this.segments[r];if(e<n.timestamp+n.duration)return n;yield this.runUpdateSegments(),t.skipLiveWait&&(i=!0)}})}getNextSegment(e,t){return Y(this,null,function*(){const i=this.segments.indexOf(e);oe(-1!==i);const r=i+1;let n=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){if(r<this.segments.length)return this.segments[r];if(this.streamHasEnded||n)return null;yield this.runUpdateSegments(),t.skipLiveWait&&(n=!0)}})}getPreviousSegment(e){return Y(this,null,function*(){var t;const i=this.segments.indexOf(e);return oe(-1!==i),null!=(t=this.segments[i-1])?t:null})}getInputForSegment(e){var t,i;const r=e,n=this.inputCache.find(e=>e.segment===r);if(n)return n.age=this.nextInputCacheAge++,n.input;let s=null;(r.initSegment||r.firstSegment)&&(s=this.getInputForSegment(null!=(t=r.initSegment)?t:r.firstSegment));const a=V(H({},this.input._formatOptions),{isobmff:V(H({},this.input._formatOptions.isobmff),{resolveKeyId:(null==(i=this.input._formatOptions.isobmff)?void 0:i.resolveKeyId)&&(e=>{if(!r.encryption||"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method||!r.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let t=e.psshBoxes;const{psshBox:i}=r.encryption;return null!==i.keyIds&&!i.keyIds.includes(e.keyId)||t.some(e=>wr(e,i))||(t=[...t,i]),this.input._formatOptions.isobmff.resolveKeyId(V(H({},e),{psshBoxes:t}))})})}),o=new ml({source:new na(r.location.path,e=>Y(this,null,function*(){var t,i;oe(e.isRoot);const n=V(H({},e),{isRoot:!1});let s;const a=r.location.offset>0||null!==r.location.length;if(r.encryption&&"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method)if("AES-128"===r.encryption.method){const e=r.encryption;oe(e.iv);let t=yield this.input._getSourceCached(n);if(a){const e=t.source.slice(r.location.offset,null!=(i=r.location.length)?i:void 0).ref();t.free(),t=e}const o=((e,t,i)=>{let r=!1,n=0;const s=q(2,16),a=new Lr;return new ReadableStream({pull:o=>Y(null,null,function*(){r||(a.init(yield t()),r=!0);const l=s+16;let c=e.requestSliceRange(n,0,l);if(ct(c)&&(c=yield c),!c||0===c.length)throw new Error("Invalid ciphertext.");const u=c.length;if(u%16!==0)throw new Error("Invalid ciphertext.");const d=u===l?u-16:u,h=Tl(c,d),f=new Uint8Array(d);for(let e=0;e<d;e+=16)a.in.set(h.subarray(e,e+16)),a.decrypt(),f.set(a.out,e);if(d<u)o.enqueue(f),n+=d;else{const e=f[d-1];if(0===e||e>16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=f.subarray(0,d-e);o.enqueue(t),o.close(),i()}}),cancel:()=>{i()}})})(new kl(t.source),()=>Y(this,null,function*(){const t={stack:[],error:void 0,hasError:!1};try{const i=ka(t,yield this.input._getSourceCached({path:e.keyUri,isRoot:!1},fl),!1),r=new kl(i.source),n=yield r.requestSlice(0,Er);if(!n)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:Tl(n,Er),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{ya(t)}}),()=>{t.free()});s=new fa(o).ref()}else oe(!1);else if(s=yield this.input._getSourceCached(n),a){const e=s.source.slice(r.location.offset,null!=(t=r.location.length)?t:void 0).ref();s.free(),s=e}return s})),formats:this.input._formats.filter(e=>!(e instanceof qa)),initInput:null!=s?s:void 0,formatOptions:a});o._onFormatDetermined=e=>{var t,i;if(("SAMPLE-AES"===(null==(t=r.encryption)?void 0:t.method)||"SAMPLE-AES-CTR"===(null==(i=r.encryption)?void 0:i.method))&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:r,input:o,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=kt(this.inputCache,e=>e.age);oe(-1!==e),this.inputCache.splice(e,1)}return o}getLiveRefreshInterval(){return Y(this,null,function*(){return 0===this.getRemainingWaitTimeMs()&&(yield this.runUpdateSegments()),this.streamHasEnded?null:this.refreshInterval})}}class wa extends yr{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>Y(this,null,function*(){oe(this.input._rootSource instanceof ia);const e=yield this.input._reader.requestEntireFile();oe(e);const t=Ol(e,e.length,{ignore:Xs}),{rootPath:i}=this.input._rootSource,r=[],n=[];for(let u=1;u<t.length;u++){const e=t[u];if(e.startsWith(Ns)){const n=u,s=t[++u];if(void 0===s)throw new Error("Incorrect M3U8 file; a line must follow the #EXT-X-STREAM-INF tag.");const a=pt(i,s),o=new $s(e.slice(18));if(null===o.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");r.push({fullPath:a,attributes:o,lineNumber:n,hasOnlyKeyPackets:!1})}else if(e.startsWith(Os)){const t=new $s(e.slice(26)),n=t.get("uri");if(null===n)throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a URI attribute.");if(null===t.getAsNumber("bandwidth"))throw new Error("Invalid M3U8 file; #EXT-X-I-FRAME-STREAM-INF tag requires a BANDWIDTH attribute with a valid numerical value.");const s=pt(i,n);r.push({fullPath:s,attributes:t,lineNumber:u,hasOnlyKeyPackets:!0})}else if(e.startsWith(Ls)){const t=new $s(e.slice(13));if(null===t.get("type"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a TYPE attribute.");if(null===t.get("group-id"))throw new Error("Invalid M3U8 file; #EXT-X-MEDIA tag requires a GROUP-ID attribute.");let r=null;const s=t.get("uri");null!==s&&(r=pt(i,s)),n.push({fullPath:r,attributes:t,lineNumber:u})}else if("#EXT-X-I-FRAMES-ONLY"===e);else if(e.startsWith(zs)){const e=new va(this,i,null,t);return this.segmentedInputs=[e],this.hasMasterPlaylist=!1,void(this.trackBackings=yield e.getTrackBackings())}}const s=[...new Set(n.filter(e=>"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],a=[...new Set(n.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=yield Promise.all(r.map((e,t)=>Y(this,null,function*(){var r,o,l,c;const u=[],d=e.attributes.get("codecs");let h;if(d)h=d.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=yield t.getTrackBackings(),r=yield Promise.all(i.map(e=>Y(this,null,function*(){return{track:e,codec:yield e.getCodec()}})));h=yield Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const f=e.attributes.get("video"),m=e.attributes.get("audio"),p=h.some(e=>Ki.includes(or(e))),g=h.some(e=>$i.includes(or(e)));if(null!==f&&!p){if(!s.includes(f))throw new Error(`Invalid M3U8 file; variant stream references video group "${f}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===f&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=pt(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});oe(null!==a),h.push(a)}}if(null!==m&&!g){if(!a.includes(m))throw new Error(`Invalid M3U8 file; variant stream references audio group "${m}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===m&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=pt(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});oe(null!==a),h.push(a)}}h=[...new Set(h)];let k=null,y=null;const b=e.attributes.getAsNumber("bandwidth");oe(null!==b);const T=e.attributes.getAsNumber("average-bandwidth"),v=e.attributes.get("name");for(const i of h){const d=or(i);if(null!==d)if(Ki.includes(d)){if(null!==k)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");k=i;const a=e.attributes.get("video");if(null===a){const i=e.attributes.get("resolution");let r=null,n=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(r=Number(e[1]),n=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:We,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:k,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:b,averageBitrate:T,name:v,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:r,height:n}})}else{if(!s.includes(a))throw new Error(`Invalid M3U8 file; variant stream references video group "${a}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==a||"video"!==s.toLowerCase())continue;const l=null!=(r=i.attributes.get("resolution"))?r:e.attributes.get("resolution");let c=null,d=null;if(l){const e=l.match(/^(\d+)x(\d+)$/);e&&(c=Number(e[1]),d=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:xa(i.attributes),autoselect:xa(i.attributes)||Ca(i.attributes),languageCode:Ba(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(o=i.fullPath)?o:e.fullPath,fullCodecString:k,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"video",width:c,height:d}})}}}else if($i.includes(d)){if(null!==y)throw new Error("Unsupported M3U8 file; multiple audio codecs found in the CODECS attribute of a variant stream.");y=i;const r=e.attributes.get("audio");if(null===r){const i=e.attributes.get("channels"),r=null!==i?Number(i.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:We,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:y,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:b,averageBitrate:T,name:v,hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==r&&Number.isInteger(r)&&r>0?r:null}})}else{if(!a.includes(r))throw new Error(`Invalid M3U8 file; variant stream references audio group "${r}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==r||"audio"!==s.toLowerCase())continue;const a=null!=(l=i.attributes.get("channels"))?l:e.attributes.get("channels"),o=null!==a?Number(a.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:xa(i.attributes),autoselect:xa(i.attributes)||Ca(i.attributes),languageCode:Ba(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(c=i.fullPath)?c:e.fullPath,fullCodecString:y,pairingMask:BigInt("1")<<BigInt(t),peakBitrate:null,averageBitrate:null,name:i.attributes.get("name"),hasOnlyKeyPackets:e.hasOnlyKeyPackets,info:{type:"audio",numberOfChannels:null!==o&&Number.isInteger(o)&&o>0?o:null}})}}}}return u}))),l=[],c=e=>{var t,i;const r=l.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);r?(r.pairingMask|=e.pairingMask,r.default||(r.default=e.default),r.autoselect||(r.autoselect=e.autoselect),r.lineNumber=Math.min(r.lineNumber,e.lineNumber),null!==e.peakBitrate&&(r.peakBitrate=Math.max(null!=(t=r.peakBitrate)?t:-1/0,e.peakBitrate)),null!==e.averageBitrate&&(r.averageBitrate=Math.max(null!=(i=r.averageBitrate)?i:-1/0,e.averageBitrate)),r.languageCode===We&&(r.languageCode=e.languageCode)):(e.id=l.length+1,l.push(e))};for(const u of o)for(const e of u)c(e);l.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const u of l)"video"===u.info.type?this.trackBackings.push(new Pa(u)):this.trackBackings.push(new Ia(u));this.internalTracks=l}))()}getTrackBackings(){return Y(this,null,function*(){return yield this.readMetadata(),oe(this.trackBackings),this.trackBackings})}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new va(this,e,i,null),this.segmentedInputs.push(t),t}getMetadataTags(){return Y(this,null,function*(){return{}})}getMimeType(){return Y(this,null,function*(){return Ds})}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class Sa{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>Y(this,null,function*(){const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(yield e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof Pa){for(const r of i)if((yield r.getCodec())===this.getCodec()){t=r;break}}else{oe(this instanceof Ia);for(const e of i)if((yield e.getCodec())===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t}))()}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return V(H({},Ct),{default:this.internalTrack.autoselect,primary:this.internalTrack.default})}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){oe(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}getDurationFromMetadata(e){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)})}getLiveRefreshInterval(){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()})}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}getFirstPacket(e){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)})}getPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)})}getKeyPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)})}getNextPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)})}getNextKeyPacket(e,t){return Y(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)})}}class Pa extends Sa{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return or(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}getColorSpace(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getColorSpace()})}canBeTransparent(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.canBeTransparent()})}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return Y(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getDecoderConfig()})}}class Ia extends Sa{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return or(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return Y(this,null,function*(){return yield this.hydrate(),this.backingAudioTrack.getDecoderConfig()})}}const xa=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},Ca=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},Ba=e=>{if(null===e)return We;const t=e.split("-")[0];return t||We};class Ea{constructor(){this._isIsobmff=!1}}class _a extends Ea{constructor(){super(...arguments),this._isIsobmff=!0}_getMajorBrand(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,12);if(ct(t)&&(t=yield t),!t)return null;t.skip(4);const i=Nl(t,4);return"ftyp"!==i&&"styp"!==i?null:Nl(t,4)})}_createDemuxer(e){return new zr(e)}}class Ra extends _a{_canReadInput(e){return Y(this,null,function*(){const t=yield this._getMajorBrand(e);if(null!==t)return"qt "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(ct(t)&&(t=yield t),!t)return!1;let r=Cl(t),n=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(ct(t)&&(t=yield t),!t)return!1;r=Rl(t),n=16}if(r<n)return!1;const s=Nl(t,4);if("moof"===s||"sidx"===s)return!0;if("emsg"!==s&&"prft"!==s&&"free"!==s)return!1;i+=r}return!1})}get name(){return"MP4"}get mimeType(){return"video/mp4"}}class Fa extends _a{_canReadInput(e){return Y(this,null,function*(){return"qt "===(yield this._getMajorBrand(e))})}get name(){return"QuickTime File Format"}get mimeType(){return"video/quicktime"}}class Aa extends Ea{isSupportedEBMLOfDocType(e,t){return Y(this,null,function*(){let i=e._reader.requestSlice(0,cn);if(ct(i)&&(i=yield i),!i)return!1;const r=un(i);if(null===r)return!1;if(r<1||r>8)return!1;if(hn(i,r)!==nn.EBML)return!1;const n=mn(i);if("number"!==typeof n)return!1;let s=e._reader.requestSlice(i.filePos,n);if(ct(s)&&(s=yield s),!s)return!1;const a=i.filePos;for(;s.filePos<=a+n-2;){const e=pn(s);if(!e)break;const{id:i,size:r}=e,n=s.filePos;if(void 0===r)return!1;switch(i){case nn.EBMLVersion:if(1!==hn(s,r))return!1;break;case nn.EBMLReadVersion:if(1!==hn(s,r))return!1;break;case nn.DocType:if(gn(s,r)!==t)return!1;break;case nn.DocTypeVersion:if(hn(s,r)>4)return!1}s.filePos=n+r}return!0})}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new Vn(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class Ma extends Aa{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Da extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}const i=yield $n(e._reader,t,t+4096);if(!i)return!1;const r=i.header,n=hr(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+n,4);if(ct(s)&&(s=yield s),!s)return!1;const a=Cl(s);if(a===ur||a===dr)return!0;t=i.startPos+i.header.totalSize;const o=yield $n(e._reader,t,t+4);if(!o)return!1;const l=o.header;return r.channel===l.channel&&r.sampleRate===l.sampleRate})}_createDemuxer(e){return new Gn(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class Na extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,12);if(ct(t)&&(t=yield t),!t)return!1;const i=Nl(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===Nl(t,4)})}_createDemuxer(e){return new ds(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class Oa extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,4);return ct(t)&&(t=yield t),!!t&&"OggS"===Nl(t,4)})}_createDemuxer(e){return new ss(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class La extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return ct(i)&&(i=yield i),!!i&&"fLaC"===Nl(i,4)})}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new ys(e)}}class za extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,Hl);if(ct(i)&&(i=yield i),!i)break;const r=Xl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(ct(i)&&(i=yield i),!i)return!1;const r=ms(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),ct(i)&&(i=yield i),!i)return!1;const n=ms(i);return!!n&&(r.objectType===n.objectType&&r.samplingFrequencyIndex===n.samplingFrequencyIndex&&r.channelConfiguration===n.channelConfiguration)})}_createDemuxer(e){return new gs(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class Ua extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,205);if(ct(t)&&(t=yield t),!t)return!1;const i=Tl(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])})}_createDemuxer(e){return new xs(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class qa extends Ea{_canReadInput(e){return Y(this,null,function*(){let t=e._reader.requestSlice(0,7);if(ct(t)&&(t=yield t),!t)return!1;if(!("#EXTM3U"===Nl(t,7)))return!1;if(!(e._rootSource instanceof ia))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0})}_createDemuxer(e){return new wa(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Ds}}const Wa=new Ra,Ha=new Fa,Va=new Aa,ja=new Ma,Ka=new Da,Xa=new Na,$a=new Oa,Ga=new za,Qa=new La,Ya=new Ua,Ja=new qa,Za=[Ja,Wa,Ha,Va,ja,Xa,$a,Qa,Ka,Ga,Ya],eo=[Ja,Wa,Ha,Ka,Ga,Ya];var to=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});ft();let io=-1/0,ro=-1/0,no=null;"undefined"!==typeof FinalizationRegistry&&(no=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-io>=1e3&&(Pt._error("A VideoSample was garbage collected without first being closed. 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For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),ro=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class so{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const ao=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],oo=new Set(ao);class lo{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(Qe*this.timestamp)}get microsecondDuration(){return Math.trunc(Qe*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,w,S,P,I,x,C,B,E,_,R,F;if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!oo.has(t.format))throw new TypeError("init.format must be one of: "+ao.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&bt(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=null!=(i=t.rotation)?i:0,this.timestamp=t.timestamp,this.duration=null!=(r=t.duration)?r:0;const m=null!=(n=t.layout)?n:bo(t.format,t.codedWidth,t.codedHeight);let p=null!=(s=t.colorSpace)?s:null;null===p&&(p="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:null!=(o=null==(a=t.visibleRect)?void 0:a.left)?o:0,top:null!=(c=null==(l=t.visibleRect)?void 0:l.top)?c:0,width:null!=(d=null==(u=t.visibleRect)?void 0:u.width)?d:t.codedWidth,height:null!=(f=null==(h=t.visibleRect)?void 0:h.height)?f:t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?fe(e):fe(e).slice(),this._layout=m,this.colorSpace=new mo(p)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==(null==t?void 0:t.rotation)&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==(null==t?void 0:t.timestamp)&&!Number.isFinite(null==t?void 0:t.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==(null==t?void 0:t.duration)&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==(null==t?void 0:t.visibleRect)&&bt(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:null!=(p=null==(m=e.visibleRect)?void 0:m.x)?p:0,top:null!=(k=null==(g=e.visibleRect)?void 0:g.y)?k:0,width:null!=(b=null==(y=e.visibleRect)?void 0:y.width)?b:e.codedWidth,height:null!=(v=null==(T=e.visibleRect)?void 0:T.height)?v:e.codedHeight},this.rotation=null!=(w=null==t?void 0:t.rotation)?w:0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=null!=(S=null==t?void 0:t.timestamp)?S:e.timestamp/1e6,this.duration=null!=(I=null==t?void 0:t.duration)?I:(null!=(P=e.duration)?P:0)/1e6,this.colorSpace=new mo(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&bt(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new lo(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*Qe),duration:Math.trunc((null!=(x=t.duration)?x:0)*Qe)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const n=null!=(C=t.visibleRect)?C:{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(n.width,n.height),a=s.getContext("2d",{alpha:nt(),willReadFrequently:!0});if(!a)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");a.drawImage(e,-n.left,-n.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:n.width,height:n.height},this.squarePixelWidth=n.width,this.squarePixelHeight=n.height,this.rotation=null!=(B=t.rotation)?B:0,this.timestamp=t.timestamp,this.duration=null!=(E=t.duration)?E:0,this.colorSpace=new mo({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof so))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!ao.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=null!=(_=t.rotation)?_:0,this.timestamp=t.timestamp,this.duration=null!=(R=t.duration)?R:0,this.colorSpace=e.getColorSpace()}this.encodeOptions=null!=(F=null==t?void 0:t.encodeOptions)?F:{},this.pixelAspectRatio=yt({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),null==no||no.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return oe(null!==this._data),this._data instanceof so?new lo(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):po(this._data)?new lo(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(oe(this._layout),new lo(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new lo(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(null==no||no.unregister(this),this._data instanceof so?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):po(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){var t;if(yo(e),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(t=e.format)?t:this.format))throw new Error("Cannot get allocation size when format is null.");if(po(this._data))return this._data.allocationSize(e);return vo(this,e).allocationSize}copyTo(e){return Y(this,arguments,function*(e,t={}){var i,r;if(!Ie(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(yo(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(oe(null!==this._data),po(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 so)){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 lo))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(n.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${n.format}' instead.`);return yield n.copyTo(e,t)}catch(u){i.error=u,i.hasError=!0}finally{to(i)}}}const n=vo(this,t);oe(this.format);const s=fe(e);if(s.byteLength<n.allocationSize)throw new TypeError(`Destination buffer too small. Required: ${n.allocationSize}, Available: ${s.byteLength}`);const a=To(this.format);let o;if(this._data instanceof so){let e=this._data.getDataPlanes();if(ct(e)&&(e=yield e),!Array.isArray(e)||e.some(e=>!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');o=e}else if(this._data instanceof Uint8Array)oe(this._layout),oe(this._layout.length===a.length),o=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");oe(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);o=[{data:fe(t.data),stride:4*this.codedWidth}]}const l=[],c=a.length;for(let d=0;d<c;d++){const e=n.computedLayouts[d],t=o[d].stride,i=o[d].data;let r=e.sourceTop*t;r+=e.sourceLeftBytes;let a=e.destinationOffset;const c=e.sourceWidthBytes,u={offset:a,stride:e.destinationStride};for(let n=0;n<e.sourceHeight;n++){if(r+c>i.byteLength)throw new Error("Source buffer OOB read.");if(a+c>s.byteLength)throw new Error("Destination buffer OOB write.");const n=i.subarray(r,r+c);s.set(n,a),r+=t,a+=e.destinationStride}l.push(u)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),i=this.format.includes("X")&&t.format.includes("A");if(e||i)for(let t=0;t<n.allocationSize;t+=4){if(e){const e=s[t],i=s[t+2];s[t]=i,s[t+2]=e}i&&(s[t+3]=255)}}return l})}toVideoFrame(){if(this._closed)throw new Error("VideoSample is closed.");if(oe(null!==this._data),this._data instanceof so){if(null===this.format)throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if format is null.");const e=this._data.getDataPlanes();if(ct(e))throw new Error("Cannot convert a VideoSampleResource-backed VideoSample to VideoFrame if getDataPlanes() returns a promise.");const t=e.reduce((e,t)=>e+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const n=[];for(const s of e)i.set(s.data,r),n.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:n[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return po(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(oe(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,n,s,a,o,l){let c=0,u=0,d=this.displayWidth,h=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(c=t,u=i,d=r,h=n,f=s,m=a,void 0!==o?(p=o,g=l):(p=d,g=h)):(f=t,m=i,void 0!==r&&(p=r,g=n)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(c))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:c,sy:u,sWidth:d,sHeight:h}=this._rotateSourceRegion(c,u,d,h,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const T=this.rotation%180===0?1:p/g;e.scale(1/T,T),e.drawImage(k,c,u,d,h,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){var i,r,n,s,a,o,l,c,u;if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&ko(t.crop,"options.");const d=e.canvas.width,h=e.canvas.height,f=null!=(i=t.rotation)?i:this.rotation,[m,p]=f%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let g,k,y,b,T=t.crop;T&&(T=go(T,m,p));const{sx:v,sy:w,sWidth:S,sHeight:P}=this._rotateSourceRegion(null!=(n=null==(r=t.crop)?void 0:r.left)?n:0,null!=(a=null==(s=t.crop)?void 0:s.top)?a:0,null!=(l=null==(o=t.crop)?void 0:o.width)?l:m,null!=(u=null==(c=t.crop)?void 0:c.height)?u:p,f);if("fill"===t.fit)g=0,k=0,y=d,b=h;else{const[e,i]=t.crop?[t.crop.width,t.crop.height]:[m,p],r="contain"===t.fit?Math.min(d/e,h/i):Math.max(d/e,h/i);y=e*r,b=i*r,g=(d-y)/2,k=(h-b)/2}e.save();const I=f%180===0?1:y/b;e.translate(d/2,h/2),e.rotate(f*Math.PI/180),e.scale(1/I,I),e.translate(-d/2,-h/2),e.drawImage(this.toCanvasImageSource(),v,w,S,P,g,k,y,b),e.restore()}_rotateSourceRegion(e,t,i,r,n){return 90===n?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===n?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===n&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,n=e.height,[s,a]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,l=i.crop?i.crop.height:a;let c=0;2*r<o&&2*n<l&&(c=Math.floor(Math.log2(Math.min(o/r,l/n))));const u=r*q(2,c),d=n*q(2,c),{canvas:h,context:f,isNew:m}=c>0?fo(u,d):{canvas:e,context:t,isNew:i.targetIsFresh};f.imageSmoothingQuality="high",i.fillBlack?(f.fillStyle="black",f.fillRect(0,0,u,d)):m||f.clearRect(0,0,u,d),this.drawWithFit(f,{fit:i.fit,rotation:i.rotation,crop:i.crop}),f.globalCompositeOperation="copy";for(let p=c;p>1;p--){const e=r*q(2,p),t=n*q(2,p);f.drawImage(h,0,0,e,t,0,0,e/2,t/2)}f.globalCompositeOperation="source-over",c>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(h,0,0,2*r,2*n,0,0,r,n),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(oe(null!==this._data),this._data instanceof so||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}transform(e){return Y(this,null,function*(){var t,i,r,n,s;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&ko(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const a=le(this.rotation+(null!=(t=e.rotate)?t:0)),[o,l]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let c=e.crop;c&&(c=go(c,o,l));const u=c?c.width:o,d=c?c.height:l,h=u/d;let f,m;void 0!==e.width&&void 0===e.height?(f=e.width,m=f/h):void 0===e.width&&void 0!==e.height?(m=e.height,f=m*h):void 0!==e.width&&void 0!==e.height?(f=e.width,m=e.height):(f=u,m=d),f=Ve(f,null!=(i=e.roundDimensionsTo)?i:1),m=Ve(m,null!=(r=e.roundDimensionsTo)?r:1);const p={width:f,height:m,fit:null!=(n=e.fit)?n:"fill",rotation:a,crop:null!=c?c:{left:0,top:0,width:o,height:l},alpha:null!=(s=e.alpha)?s:"keep"};for(const e of co){let t=e(this,p);if(ct(t)&&(t=yield t),null!==t)return t}const{canvas:g,context:k,isNew:y}=fo(p.width,p.height);return this._drawWithFitAndMipmapping(g,k,{fit:p.fit,rotation:p.rotation,crop:p.crop,targetIsFresh:y,fillBlack:"discard"===p.alpha}),new lo(g,{timestamp:this.timestamp,duration:this.duration,rotation:0})})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const co=[],uo=[];let ho=0;const fo=(e,t)=>{for(const n of uo)if(n.canvas.width===e&&n.canvas.height===t)return n.age=ho++,{canvas:n.canvas,context:n.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return uo.length>=3&&uo.splice(kt(uo,e=>e.age),1),uo.push({canvas:i,context:r,age:ho++}),{canvas:i,context:r,isNew:!0}};class mo{constructor(e){var t,i,r,n;if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(ke);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(be);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(ve);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=null!=(t=null==e?void 0:e.primaries)?t:null,this.transfer=null!=(i=null==e?void 0:e.transfer)?i:null,this.matrix=null!=(r=null==e?void 0:e.matrix)?r:null,this.fullRange=null!=(n=null==e?void 0:e.fullRange)?n:null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const po=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,go=(e,t,i)=>{const r=Math.min(e.left,t),n=Math.min(e.top,i),s=Math.min(e.width,t-r),a=Math.min(e.height,i-n);return oe(s>=0),oe(a>=0),{left:r,top:n,width:s,height:a}},ko=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},yo=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},bo=(e,t,i)=>{const r=To(e),n=[];let s=0;for(const a of r){const e=Math.ceil(t/a.widthDivisor),r=Math.ceil(i/a.heightDivisor),o=e*a.sampleBytes,l=o*r;n.push({offset:s,stride:o}),s+=l}return n},To=e=>{const t=(e,t,i,r,n)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return n&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:Oe(e),oe(!1)}},vo=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,n=wo(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let a;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");a=t.format}else a=e.format;return Po(n,a,s)},wo=(e,t,i,r,n)=>{const s=H({},e);if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!So(n,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},So=(e,t)=>{if(null===e)return!0;const i=To(e);for(let r=0;r<i.length;r++){const e=i[r],n=e.widthDivisor,s=e.heightDivisor;if((t.x||0)%n!==0)return!1;if((t.y||0)%s!==0)return!1}return!0},Po=(e,t,i)=>{const r=To(t),n=r.length;if(void 0!==i&&i.length!==n)throw new TypeError(`Layout must have ${n} planes.`);let s=0;const a=[],o=[];for(let l=0;l<n;l++){const t=r[l],n=t.sampleBytes,c=t.widthDivisor,u=t.heightDivisor,d={destinationOffset:0,destinationStride:0,sourceTop:0,sourceHeight:0,sourceLeftBytes:0,sourceWidthBytes:0};if(d.sourceTop=Math.ceil(Math.trunc(e.y||0)/u),d.sourceHeight=Math.ceil(Math.trunc(e.height||0)/u),d.sourceLeftBytes=Math.floor(Math.trunc(e.x||0)/c)*n,d.sourceWidthBytes=Math.floor(Math.trunc(e.width||0)/c)*n,void 0!==i){const e=i[l];if(e.stride<d.sourceWidthBytes)throw new TypeError(`Stride for plane ${l} is too small.`);d.destinationOffset=e.offset,d.destinationStride=e.stride}else d.destinationOffset=s,d.destinationStride=d.sourceWidthBytes;const h=d.destinationStride*d.sourceHeight+d.destinationOffset;if(h>4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(h),s=Math.max(s,h);for(let e=0;e<l;e++){const t=a[e];if(!(o[l]<=t.destinationOffset||o[e]<=d.destinationOffset))throw new TypeError("Planes overlap.")}a.push(d)}return{allocationSize:s,computedLayouts:a}},Io=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]);class xo{constructor(){this._referenceCount=0}}class Co{get microsecondTimestamp(){return Math.trunc(Qe*this.timestamp)}get microsecondDuration(){return Math.trunc(Qe*this.duration)}constructor(e){if(this._closed=!1,Fo(e)){if(null===e.format)throw new TypeError("AudioData with null format is not supported.");this._data=e,this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=e.numberOfFrames,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp/1e6,this.duration=e.numberOfFrames/e.sampleRate}else if(e instanceof xo){if(this._data=e,e._referenceCount++,this.format=e.getFormat(),!Io.has(this.format))throw new TypeError("getFormat() must return an AudioSampleFormat.");if(this.sampleRate=e.getSampleRate(),!Number.isInteger(this.sampleRate)||this.sampleRate<=0)throw new TypeError("getSampleRate() must return a positive integer.");if(this.numberOfFrames=e.getNumberOfFrames(),!Number.isInteger(this.numberOfFrames)||this.numberOfFrames<0)throw new TypeError("getNumberOfFrames() must return a non-negative integer.");if(this.numberOfChannels=e.getNumberOfChannels(),!Number.isInteger(this.numberOfChannels)||this.numberOfChannels<=0)throw new TypeError("getNumberOfChannels() must return a positive integer.");if(this.timestamp=e.getTimestamp(),!Number.isFinite(this.timestamp))throw new TypeError("getTimestamp() must return a finite number.");this.duration=this.numberOfFrames/this.sampleRate}else{if(!e||"object"!==typeof e)throw new TypeError("Invalid AudioDataInit: must be an object.");if(!Io.has(e.format))throw new TypeError("Invalid AudioDataInit: invalid format.");if(!Number.isFinite(e.sampleRate)||e.sampleRate<=0)throw new TypeError("Invalid AudioDataInit: sampleRate must be > 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(null==e?void 0:e.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(Bo(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*Bo(this.format);if(i.byteLength<r)throw new TypeError("Invalid AudioDataInit: insufficient data size.");this._data=i}null==no||no.register(this,{type:"audio",data:this._data},this)}allocationSize(e){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(!Number.isInteger(e.planeIndex)||e.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==e.format&&!Io.has(e.format))throw new TypeError("Invalid format.");if(void 0!==e.frameOffset&&(!Number.isInteger(e.frameOffset)||e.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==e.frameCount&&(!Number.isInteger(e.frameCount)||e.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const r=null!=(t=e.format)?t:this.format,n=null!=(i=e.frameOffset)?i:0;if(n>=this.numberOfFrames)throw new RangeError("frameOffset out of range");const s=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-n;if(s>this.numberOfFrames-n)throw new RangeError("frameCount out of range");const a=Bo(r),o=Eo(r);if(o&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!o&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(o?s:s*this.numberOfChannels)*a}copyTo(e,t){if(!Ie(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!Io.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:n}=t;let{planeIndex:s}=t,a=this.format;const o=null!=i?i:this.format;if(!o)throw new Error("Destination format not determined");const l=this.numberOfFrames,c=this.numberOfChannels,u=null!=n?n:0;if(u>=l)throw new RangeError("frameOffset out of range");const d=void 0!==r?r:l-u;if(d>l-u)throw new RangeError("frameCount out of range");const h=Bo(o),f=Eo(o);if(f&&s>=c)throw new RangeError("planeIndex out of range");if(!f&&0!==s)throw new RangeError("planeIndex out of range");const m=(f?d:d*c)*h;if(e.byteLength<m)throw new RangeError("Destination buffer is too small");const p=me(e),g=Ro(o);if(Fo(this._data)){if(it()&&c>2&&o!==a)return void Ao(this._data,p,a,o,c,s,u,d);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:u,frameCount:d,format:o})}catch(w){if("f32-planar"===o)throw w;a="f32-planar"}}const k=_o(a),y=Bo(a),b=Eo(a);let T;if(this._data instanceof xo){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=l*y*(b?1:c);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(b)if(f)T=e(s),s=0;else{T=new Uint8Array(l*y*c);for(let t=0;t<c;t++){const i=e(t);T.set(i,t*l*y)}}else T=e(0)}else if(this._data instanceof Uint8Array)T=this._data;else if(oe("f32-planar"===a),f)T=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:s})),this._data.copyTo(T,{format:"f32-planar",planeIndex:s}),s=0;else{T=new Uint8Array(this._data.allocationSize({format:"f32-planar",planeIndex:0})*c);for(let e=0;e<c;e++)this._data.copyTo(T.subarray(e*l*y,(e+1)*l*y),{format:"f32-planar",planeIndex:e})}const v=me(T);for(let S=0;S<d;S++)if(f){let e;e=b?(s*l+(S+u))*y:((S+u)*c+s)*y;g(p,S*h,k(v,e))}else for(let e=0;e<c;e++){let t;t=b?(e*l+(S+u))*y:((S+u)*c+e)*y;g(p,(S*c+e)*h,k(v,t))}}clone(){if(this._closed)throw new Error("AudioSample is closed.");if(this._data instanceof xo){const e=new Co(this._data);return e.setTimestamp(this.timestamp),e}if(Fo(this._data)){const e=new Co(this._data.clone());return e.setTimestamp(this.timestamp),e}return new Co({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp,data:this._data})}trim(e,t=this.numberOfFrames){if(!Number.isInteger(e)||e<0)throw new TypeError("startFrame must be a non-negative integer.");if(!Number.isInteger(t)||t<0)throw new TypeError("endFrame must be a non-negative integer.");if(e>this.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t<e)throw new RangeError("endFrame must not be less than startFrame.");if(this._closed)throw new Error("AudioSample is closed.");const i=t-e,r=Bo(this.format);let n;if(Eo(this.format)){const t=i*r;if(n=new Uint8Array(t*this.numberOfChannels),i>0)for(let r=0;r<this.numberOfChannels;r++)this.copyTo(n.subarray(r*t,(r+1)*t),{planeIndex:r,format:this.format,frameOffset:e,frameCount:i})}else n=new Uint8Array(i*this.numberOfChannels*r),i>0&&this.copyTo(n,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new Co({data:n,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(null==no||no.unregister(this),this._data instanceof xo?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Fo(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof xo?this._createAudioDataFromData():Fo(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(Eo(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(new Uint8Array(t,i*e,e),{planeIndex:i,format:this.format});return new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:t})}{const e=new ArrayBuffer(this.allocationSize({planeIndex:0,format:this.format}));return this.copyTo(e,{planeIndex:0,format:this.format}),new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:e})}}toAudioBuffer(){if(this._closed)throw new Error("AudioSample is closed.");const e=new AudioBuffer({numberOfChannels:this.numberOfChannels,length:this.numberOfFrames,sampleRate:this.sampleRate}),t=new Float32Array(this.allocationSize({planeIndex:0,format:"f32-planar"})/4);for(let i=0;i<this.numberOfChannels;i++)this.copyTo(t,{planeIndex:i,format:"f32-planar"}),e.copyToChannel(t,i);return e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}[Symbol.dispose](){this.close()}static*_fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,n=e.length,s=Math.floor(24e4/i);let a=0,o=n;for(;o>0;){const n=Math.min(s,o),l=new Float32Array(i*n);for(let t=0;t<i;t++)e.copyFromChannel(l.subarray(t*n,(t+1)*n),t,a);yield new Co({format:"f32-planar",sampleRate:r,numberOfFrames:n,numberOfChannels:i,timestamp:t+a/r,data:l}),a+=n,o-=n}}static fromAudioBuffer(e,t){if(!(e instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");const i=e.numberOfChannels,r=e.sampleRate,n=e.length,s=Math.floor(24e4/i);let a=0,o=n;const l=[];for(;o>0;){const n=Math.min(s,o),c=new Float32Array(i*n);for(let t=0;t<i;t++)e.copyFromChannel(c.subarray(t*n,(t+1)*n),t,a);const u=new Co({format:"f32-planar",sampleRate:r,numberOfFrames:n,numberOfChannels:i,timestamp:t+a/r,data:c});l.push(u),a+=n,o-=n}return l}}const Bo=e=>{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},Eo=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},_o=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},Ro=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,qe(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,qe(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,qe(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},Fo=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,Ao=(e,t,i,r,n,s,a,o)=>{const l=_o(i),c=Ro(r),u=Bo(i),d=Bo(r),h=Eo(i);if(Eo(r))if(h){const r=new ArrayBuffer(o*u),n=me(r);e.copyTo(r,{planeIndex:s,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,e*d,l(n,e*u))}}else{const r=new ArrayBuffer(o*n*u),h=me(r);e.copyTo(r,{planeIndex:0,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,e*d,l(h,(e*n+s)*u))}}else if(h){const r=new ArrayBuffer(o*u),s=me(r);for(let h=0;h<n;h++){e.copyTo(r,{planeIndex:h,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++){c(t,(e*n+h)*d,l(s,e*u))}}}else{const r=new ArrayBuffer(o*n*u),s=me(r);e.copyTo(r,{planeIndex:0,frameOffset:a,frameCount:o,format:i});for(let e=0;e<o;e++)for(let i=0;i<n;i++){const r=e*n+i;c(t,r*d,l(s,r*u))}}},Mo=[],Do=[],No=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},Oo=e=>{if(!mt(e))throw new TypeError("timestamp must be a number.")},Lo=(e,t,i)=>i.verifyKeyPackets?t.then(t=>Y(null,null,function*(){if(!t||"delta"===t.type)return t;const i=yield e.determinePacketType(t);return i&&(t.type=i),t})):t;class zo{constructor(e){if(!(e instanceof el))throw new TypeError("track must be an InputTrack.");this._track=e}getFirstPacket(){return Y(this,arguments,function*(e={}){if(No(e),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getFirstPacket(e),e)})}getFirstKeyPacket(){return Y(this,arguments,function*(e={}){No(e);const t=yield this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null})}getPacket(e){return Y(this,arguments,function*(e,t={}){if(Oo(e),No(t),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getPacket(e,t),t)})}getNextPacket(e){return Y(this,arguments,function*(e,t={}){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(No(t),this._track.input._disposed)throw new gl;return Lo(this._track,this._track._backing.getNextPacket(e,t),t)})}getKeyPacket(e){return Y(this,arguments,function*(e,t={}){if(Oo(e),No(t),this._track.input._disposed)throw new gl;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=yield this._track._backing.getKeyPacket(e,t);if(!i)return i;oe("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getKeyPacket(i.timestamp-1/(yield this._track.getTimeResolution()),t):i})}getNextKeyPacket(e){return Y(this,arguments,function*(e,t={}){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(No(t),this._track.input._disposed)throw new gl;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=yield this._track._backing.getNextKeyPacket(e,t);if(!i)return i;oe("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getNextKeyPacket(i,t):i})}packets(e,t,i={}){if(void 0!==e&&!(e instanceof Tr))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!(null==i?void 0:i.metadataOnly))throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof Tr))throw new TypeError("endPacket must be an EncodedPacket.");if(No(i),this._track.input._disposed)throw new gl;const r=[];let{promise:n,resolve:s}=Ae(),{promise:a,resolve:o}=Ae(),l=!1,c=!1,u=null,d=!1;const h=[],f=()=>Math.max(2,h.length);(()=>Y(this,null,function*(){let u=null!=e?e:yield this.getFirstPacket(i);for(;u&&!c&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=(null==t?void 0:t.sequenceNumber));)r.length>f()?(({promise:a,resolve:o}=Ae()),yield a):(r.push(u),s(),({promise:n,resolve:s}=Ae()),u=yield this.getNextPacket(u,i));l=!0,s()}))().catch(e=>{d||(u=e,d=!0,s())});const m=this._track;return{next(){return Y(this,null,function*(){for(;;){if(m.input._disposed)throw new gl;if(c)return{value:void 0,done:!0};if(d)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(h.push(t);h.length>0&&t-h[0]>=1e3;)h.shift();return o(),{value:e,done:!1}}if(l)return{value:void 0,done:!0};yield n}})},return(){return Y(this,null,function*(){return c=!0,o(),s(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}class Uo{constructor(e,t){this.onSample=e,this.onError=t}}class qo{mediaSamplesInRange(e=-1/0,t=1/0,i){Oo(e),Oo(t);const r=[];let n=!1,s=null,{promise:a,resolve:o}=Ae(),{promise:l,resolve:c}=Ae(),u=!1,d=!1,h=!1,f=null,m=null,p=!1;const g=V(H({},i),{verifyKeyPackets:!0,metadataOnly:!1});(()=>Y(this,null,function*(){var i;f=yield this._createDecoder(i=>{c(),i.timestamp>=t&&(d=!0),d?i.close():(s&&(i.timestamp>e?(r.push(s),n=!0):s.close()),i.timestamp>=e&&(r.push(i),n=!0),s=n?null:i,r.length>0&&(o(),({promise:a,resolve:o}=Ae())))},e=>{p||(m=e,p=!0,o())});const k=this._createPacketSink(),y=null!=(i=yield k.getKeyPacket(e,g))?i:yield k.getFirstKeyPacket(g);let b=y;const T=k.packets(null!=y?y:void 0,void 0,g);for(yield T.next();b&&!d&&!this._track.input._disposed;){const e=Wo(r.length);if(r.length+f.getDecodeQueueSize()>e){({promise:l,resolve:c}=Ae()),yield l;continue}f.decode(b);const t=yield T.next();if(t.done)break;b=t.value}yield T.return(),h||this._track.input._disposed||(yield f.flush()),!n&&s&&r.push(s),u=!0,o()}))().catch(e=>{p||(m=e,p=!0,o())}).finally(()=>{null==f||f.close()});const k=this._track,y=()=>{null==s||s.close();for(const e of r)e.close()};return{next(){return Y(this,null,function*(){for(;;){if(k.input._disposed)throw h=!0,d=!0,y(),new gl;if(h)return{value:void 0,done:!0};if(p)throw h=!0,d=!0,y(),m;if(r.length>0){const e=r.shift();return c(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};yield a}})},return(){return Y(this,null,function*(){return h=!0,d=!0,c(),o(),y(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=function(e){return Z(this,null,function*(){Symbol.iterator in e?yield*ee(e[Symbol.iterator]()):yield*ee(e[Symbol.asyncIterator]())})}(e),r=[],n=[];let{promise:s,resolve:a}=Ae(),{promise:o,resolve:l}=Ae(),c=!1,u=!1,d=null,h=null,f=!1;const m=e=>{n.push(e),a(),({promise:s,resolve:a}=Ae())},p=V(H({},t),{verifyKeyPackets:!0,metadataOnly:!1});(()=>Y(this,null,function*(){d=yield this._createDecoder(e=>{if(l(),u)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i<t;i++)m(i<t-1?e.clone():e);else e.close()},e=>{f||(h=e,f=!0,a())});const e=this._createPacketSink();let t=null,s=null,g=-1;const k=()=>Y(this,null,function*(){oe(s),oe(d);let t=s;for(d.decode(t);t.sequenceNumber<g;){const i=Wo(n.length);for(;n.length+d.getDecodeQueueSize()>i&&!u;)({promise:o,resolve:l}=Ae()),yield o;if(u)break;const r=yield e.getNextPacket(t,p);oe(r),d.decode(r),t=r}g=-1}),y=()=>Y(this,null,function*(){oe(d),yield d.flush();for(let e=0;e<r.length;e++)m(null);r.length=0});try{for(var b,T,v,w=te(i);b=!(T=yield w.next()).done;b=!1){const i=T.value;if(Oo(i),u||this._track.input._disposed)break;const n=yield e.getPacket(i,p),a=n&&(yield e.getKeyPacket(i,p));a?(t&&(a.sequenceNumber!==s.sequenceNumber||n.timestamp<t.timestamp)&&(yield k(),yield y()),r.push(n.timestamp),g=Math.max(n.sequenceNumber,g),t=n,s=a):(-1!==g&&(yield k(),yield y()),m(null),t=null)}}catch(T){v=[T]}finally{try{b&&(T=w.return)&&(yield T.call(w))}finally{if(v)throw v[0]}}u||this._track.input._disposed||(-1!==g&&(yield k()),yield y()),c=!0,a()}))().catch(e=>{f||(h=e,f=!0,a())}).finally(()=>{null==d||d.close()});const g=this._track,k=()=>{for(const e of n)null==e||e.close()};return{next(){return Y(this,null,function*(){for(;;){if(g.input._disposed)throw u=!0,k(),new gl;if(u)return{value:void 0,done:!0};if(f)throw u=!0,k(),h;if(n.length>0){const e=n.shift();return oe(void 0!==e),l(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};yield s}})},return(){return Y(this,null,function*(){return u=!0,l(),a(),k(),{value:void 0,done:!0}})},throw(e){return Y(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}const Wo=e=>0===e?40:8;class Ho extends Uo{constructor(e,t,i,r,n,s){var a,o,l,c,u,d,h,f;super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=n,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new et,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const m=Mo.find(e=>e.supports(i,r));if(m)this.customDecoder=new m,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof lo))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();oe(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(at()){if("avc"===i&&this.decoderConfig.description){const e=Qt(fe(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=Jt(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig=V(H({},this.decoderConfig),{hardwareAcceleration:"prefer-software"})),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=ei(t),this.decoderConfig=V(H({},this.decoderConfig),{description:Gt(e)})))}}Se(this.decoderConfig.colorSpace)||(this.decoderConfig=V(H({},this.decoderConfig),{colorSpace:{primaries:null!=(o=null==(a=this.decoderConfig.colorSpace)?void 0:a.primaries)?o:"bt709",matrix:null!=(c=null==(l=this.decoderConfig.colorSpace)?void 0:l.matrix)?c:"bt709",transfer:null!=(d=null==(u=this.decoderConfig.colorSpace)?void 0:u.transfer)?d:"bt709",fullRange:null!=(f=null==(h=this.decoderConfig.colorSpace)?void 0:h.fullRange)&&f}}))}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){var e,t;return this.customDecoder?this.customDecoderQueueSize:(oe(this.decoder),Math.max(this.decoder.decodeQueueSize,null!=(t=null==(e=this.alphaDecoder)?void 0:e.decodeQueueSize)?t:0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(oe(this.decoder),it()||Fe(this.inputTimestamps,e.timestamp,e=>e),at()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const n of Wt(e.data,this.decoderConfig)){const r=Ht(e.data[n.offset]);if(i||(i=r>=1&&r<=5),r===Nt.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(n.offset,n.offset+n.length))}if(!this.decoderConfig.description)for(let e=0;e<t.length;e++){const i=t[e];if(Ht(i[0])!==Nt.SPS)continue;const r=Jt(i);r&&0!==r.maxDecFrameBuffering&&1!==r.bitstreamRestrictionFlag&&(t[e]=ei(r));break}const r=((e,t)=>{if(t.description){const i=3&fe(t.description)[4];return Xt(e,i+1)}return Kt(e)})(t,this.decoderConfig);e=new Tr(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=mi(e.data,this.decoderConfig);t&&(e=new Tr(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new jo),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();oe(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();oe(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=wi(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(null!=t?t:e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of ti(e,this.decoderConfig)){const i=ii(e[t.offset]);if(i===Lt.RASL_N||i===Lt.RASL_R)return!0}return!1}sampleHandler(e){if(it()){if(this.sampleQueue.length>0&&e.timestamp>=ce(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}Fe(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();oe(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}mergeAlpha(e,t){return Y(this,null,function*(){const i=Ae();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){oe(this.merger);const i=yield this.merger.merge(e,t);r.sample=new lo(i)}else r.sample=new lo(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(n){Me(this.finalSamples,r),this.onError(n)}finally{Me(this.mergeAlphaPromises,i.promise),i.resolve()}})}flush(){return Y(this,null,function*(){var e;if(this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(oe(this.decoder),yield Promise.all([this.decoder.flush(),null==(e=this.alphaDecoder)?void 0:e.flush()]),yield Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),it()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1})}close(){var e;this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(oe(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,null==(e=this.merger)||e.close());for(const t of this.sampleQueue)t.close();this.sampleQueue.length=0}}let Vo=null;class jo{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!Vo){const e=new Blob([`(${Ko.toString()})()`],{type:"application/javascript"});Vo=URL.createObjectURL(e)}const e=qe(navigator.hardwareConcurrency,1,4);for(let t=0;t<e;t++){const e=new Worker(Vo);e.addEventListener("message",e=>{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=Ae();this.pendingRequests.set(i,r);const n=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,n.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const Ko=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:n,alpha:s}=e.data;i=i.then(()=>Y(null,null,function*(){try{const e=yield r(n,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{n.close(),s.close()}}))});const r=(e,t)=>Y(null,null,function*(){const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),l=i.includes("P12"),c=r.includes("P10"),u=r.includes("P12");if(c!==o||u!==l)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return yield n(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return yield s(e,t,i);if("NV12"===i)return yield a(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)}),n=(e,t,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=new Uint8Array(4*d);yield e.copyTo(h);const f=yield o(t,c,u,1);for(let e=0,t=3;e<d;e++,t+=4)h[t]=f[e];const m={format:"RGBX"===i||"RGBA"===i?"RGBA":"BGRA",codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[h.buffer]};return new VideoFrame(h,m)}),s=(e,t,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=i.includes("P10"),h=i.includes("P12"),f=d||h?2:1;let m,p;i.startsWith("I420")?(m=Math.ceil(c/2),p=Math.ceil(u/2)):i.startsWith("I422")?(m=Math.ceil(c/2),p=u):(m=c,p=u);const g=c*u,k=g*f,y=m*p*f,b=new Uint8Array(k+2*y+g*f);yield e.copyTo(b);const T=yield o(t,c,u,f),v=k+2*y;b.set(T,v);const w={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[b.buffer]};return new VideoFrame(b,w)}),a=(e,i)=>Y(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=Math.ceil(c/2)*Math.ceil(u/2),f=e.allocationSize();t&&t.byteLength===f||(t=new Uint8Array(f)),yield e.copyTo(t);const m=new Uint8Array(d+2*h+d);m.set(t.subarray(0,d),0);const p=d,g=d+h,k=d;for(let e=0;e<h;e++)m[p+e]=t[k+2*e],m[g+e]=t[k+2*e+1];const y=yield o(i,c,u,1);m.set(y,d+2*h);const b={format:"I420A",codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[m.buffer]};return new VideoFrame(m,b)}),o=(t,i,r,n)=>Y(null,null,function*(){const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),yield t.copyTo(e);const a=t.format;if("RGBA"===a||"BGRA"===a||"RGBX"===a||"BGRX"===a){const t="RGBA"===a||"RGBX"===a?0:2,n=i*r;for(let i=0;i<n;i++)e[i]=e[4*i+t];return e.subarray(0,n)}return e.subarray(0,i*r*n)})},Xo=e=>{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class $o extends qo{constructor(e,t={}){if(!(e instanceof rl))throw new TypeError("videoTrack must be an InputVideoTrack.");Xo(t),super(),this._track=e,this._decoderOptions=t}_createDecoder(e,t){return Y(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(ot("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getRotation();let n=yield this._track.getDecoderConfig();const s=yield this._track.getTimeResolution();return oe(i&&n),n=V(H({},n),{hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency}),new Ho(e,t,i,n,r,s)})}_createPacketSink(){return new zo(this._track)}getSample(e){return Y(this,arguments,function*(e,t={}){Oo(e);try{for(var i,r,n,s=te(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Go{constructor(e,t={}){var i,r,n;if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof rl))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&ko(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&Xo(t.decoderOptions),this._videoTrack=e,this._alpha=null!=(i=t.alpha)&&i,this._options=t,this._fit=null!=(r=t.fit)?r:"fill",this._videoSampleSink=new $o(e,t.decoderOptions),this._canvasPool=Array.from({length:null!=(n=t.poolSize)?n:0},()=>null)}_ensureInit(){var e;return null!=(e=this._initPromise)?e:this._initPromise=(()=>Y(this,null,function*(){var e;const t=this._options,i=this._videoTrack,r=null!=(e=t.rotation)?e:yield i.getRotation(),n=yield i.getSquarePixelWidth(),s=yield i.getSquarePixelHeight(),[a,o]=r%180===0?[n,s]:[s,n];let l=t.crop;l&&(l=go(l,a,o));let[c,u]=l?[l.width,l.height]:[a,o];const d=c/u;void 0!==t.width&&void 0===t.height?(c=t.width,u=Math.round(c/d)):void 0===t.width&&void 0!==t.height?(u=t.height,c=Math.round(u*d)):void 0!==t.width&&void 0!==t.height&&(c=t.width,u=t.height),this._width=c,this._height=u,this._rotation=r,this._crop=l}))()}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],n=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),n=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||nt()});oe(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:n,fillBlack:!this._alpha&&nt()});const a={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),a}getCanvas(e,t){return Y(this,null,function*(){Oo(e),yield this._ensureInit();const i=yield this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)})}canvases(e,t,i){return Z(this,null,function*(){yield new J(this._ensureInit()),yield*ee(Ue(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e)))})}canvasesAtTimestamps(e,t){return Z(this,null,function*(){yield new J(this._ensureInit()),yield*ee(Ue(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e)))})}}class Qo extends Uo{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new et,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const n=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const n=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(n*s)/s),e(t)},s=Do.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof Co))throw new TypeError("The argument passed to onSample must be an AudioSample.");n(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{n(new Co(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(oe(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(oe(this.decoder),null!=this.expectedFirstTimestamp||(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}flush(){return Y(this,null,function*(){this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(oe(this.decoder),yield this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0})}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(oe(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class Yo extends Uo{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,oe(Xi.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:n,littleEndian:s}=ar(this.codec);switch(this.inputSampleSize=n,n){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-q(2,7):"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const n=(1<<i|(15&r)<<i-4|1<<i-5)-33;return 0===t?n:-n})(e.getUint8(t)):"alaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let n=0;return n=4!==i?1<<i|(15&r)<<i-4|1<<i-5:r<<1|1,0===t?n:-n})(e.getUint8(t)):oe(!1);break;case 2:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint16(t,s)-q(2,15):"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):oe(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>Le(e,t,s)-q(2,23):"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>Le(e,t,i)<<8>>8)(e,t,s):oe(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-q(2,31):"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):oe(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):oe(!1);break;default:Oe(n),oe(!1)}switch(n){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+q(2,7)));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:Oe(n),oe(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=me(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,n=new ArrayBuffer(r),s=new DataView(n);for(let c=0;c<i*this.decoderConfig.numberOfChannels;c++){const e=c*this.inputSampleSize,i=c*this.outputSampleSize,r=this.readInputValue(t,e);this.writeOutputValue(s,i,r)}const a=i/this.decoderConfig.sampleRate;(null===this.currentTimestamp||Math.abs(e.timestamp-this.currentTimestamp)>=a)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=a;const l=new Co({format:this.outputFormat,data:n,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(l)}flush(){return Y(this,null,function*(){})}close(){}}class Jo extends qo{constructor(e){if(!(e instanceof nl))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}_createDecoder(e,t){return Y(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(ot("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getDecoderConfig();return oe(i&&r),Xi.includes(r.codec)?new Yo(e,t,r):new Qo(e,t,i,r)})}_createPacketSink(){return new zo(this._track)}getSample(e){return Y(this,arguments,function*(e,t={}){Oo(e);try{for(var i,r,n,s=te(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Zo{constructor(e){if(!(e instanceof nl))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new Jo(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}getBuffer(e,t){return Y(this,null,function*(){Oo(e);const i=yield this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)})}buffers(e,t,i){return Ue(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return Ue(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class el{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof rl}isAudioTrack(){return this instanceof nl}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}getInternalCodecId(){return Y(this,null,function*(){return this._backing.getInternalCodecId()})}get internalCodecId(){return tl(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}getLanguageCode(){return Y(this,null,function*(){return this._backing.getLanguageCode()})}get languageCode(){return tl(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}getName(){return Y(this,null,function*(){return this._backing.getName()})}get name(){return tl(this._backing.getName(),"name","getName")}getTimeResolution(){return Y(this,null,function*(){return this._backing.getTimeResolution()})}get timeResolution(){return tl(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}isRelativeToUnixEpoch(){return Y(this,null,function*(){return this._backing.isRelativeToUnixEpoch()})}getUnixTimeForTimestamp(e){return Y(this,null,function*(){return this._backing.getUnixTimeForTimestamp(e)})}hasUnixTimeMapping(){return Y(this,null,function*(){return null!==(yield this._backing.getUnixTimeForTimestamp(yield this.getFirstTimestamp()))})}getDisposition(){return Y(this,null,function*(){return this._backing.getDisposition()})}get disposition(){return tl(this._backing.getDisposition(),"disposition","getDisposition")}getBitrate(){return Y(this,null,function*(){return this._backing.getBitrate()})}getAverageBitrate(){return Y(this,null,function*(){return this._backing.getAverageBitrate()})}getFirstTimestamp(){return Y(this,null,function*(){var e;const t=yield this._backing.getFirstPacket({metadataOnly:!0});return null!=(e=null==t?void 0:t.timestamp)?e:0})}computeDuration(e){return Y(this,null,function*(){var t,i;const r=yield this._backing.getPacket(1/0,H({metadataOnly:!0},e)),n=(null!=(t=null==r?void 0:r.timestamp)?t:0)+(null!=(i=null==r?void 0:r.duration)?i:0);return je(n,yield this.getTimeResolution())})}getDurationFromMetadata(){return Y(this,arguments,function*(e={}){return this._backing.getDurationFromMetadata(e)})}computePacketStats(e=1/0,t){return Y(this,null,function*(){const i=new zo(this);let r=1/0,n=-1/0,s=0,a=0;try{for(var o,l,c,u=te(i.packets(void 0,void 0,H({metadataOnly:!0},t)));o=!(l=yield u.next()).done;o=!1){const t=l.value;if(s>=e&&t.timestamp>=n)break;r=Math.min(r,t.timestamp),n=Math.max(n,t.timestamp+t.duration),s++,a+=t.byteLength}}catch(l){c=[l]}finally{try{o&&(l=u.return)&&(yield l.call(u))}finally{if(c)throw c[0]}}return{packetCount:s,averagePacketRate:s?Number((s/(n-r)).toPrecision(16)):0,averageBitrate:s?Number((8*a/(n-r)).toPrecision(16)):0}})}isLive(){return Y(this,null,function*(){return null!==(yield this._backing.getLiveRefreshInterval())})}getLiveRefreshInterval(){return Y(this,null,function*(){return this._backing.getLiveRefreshInterval()})}canBePairedWith(e){if(!(e instanceof el))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&(this._backing.getPairingMask()&e._backing.getPairingMask())!==BigInt("0")}getPairableTracks(e){return Y(this,null,function*(){return this.input.getTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPairableVideoTracks(e){return Y(this,null,function*(){return this.input.getVideoTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPairableAudioTracks(e){return Y(this,null,function*(){return this.input.getAudioTracks(ll({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableVideoTrack(e){return Y(this,null,function*(){return this.input.getPrimaryVideoTrack(ll({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableAudioTrack(e){return Y(this,null,function*(){return this.input.getPrimaryAudioTrack(ll({filter:e=>e.canBePairedWith(this)},e))})}hasPairableTrack(e){return Y(this,null,function*(){e&&(e=il(e));const t=yield this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||(yield e(i))))return!0;return!1})}hasPairableVideoTrack(e){return e&&(e=il(e)),this.hasPairableTrack(t=>Y(this,null,function*(){return t.isVideoTrack()&&(!e||(yield e(t)))}))}hasPairableAudioTrack(e){return e&&(e=il(e)),this.hasPairableTrack(t=>Y(this,null,function*(){return t.isAudioTrack()&&(!e||(yield e(t)))}))}}const tl=(e,t,i)=>{if(ct(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},il=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return ct(r)?r.then(i):i(r)}:void 0};class rl extends el{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}getCodec(){return Y(this,null,function*(){return this._backing.getCodec()})}get codec(){return tl(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return Y(this,null,function*(){var e,t,i;return null!=(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:"prores"===(yield this._backing.getCodec())})}getCodedWidth(){return Y(this,null,function*(){return this._backing.getCodedWidth()})}get codedWidth(){return tl(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}getCodedHeight(){return Y(this,null,function*(){return this._backing.getCodedHeight()})}get codedHeight(){return tl(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}getRotation(){return Y(this,null,function*(){return this._backing.getRotation()})}get rotation(){return tl(this._backing.getRotation(),"rotation","getRotation")}getSquarePixelWidth(){return Y(this,null,function*(){return this._backing.getSquarePixelWidth()})}get squarePixelWidth(){return tl(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}getSquarePixelHeight(){return Y(this,null,function*(){return this._backing.getSquarePixelHeight()})}get squarePixelHeight(){return tl(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}getPixelAspectRatio(){return Y(this,null,function*(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=yt({num:(yield this.getSquarePixelWidth())*(yield this.getCodedHeight()),den:(yield this.getSquarePixelHeight())*(yield this.getCodedWidth())})})}get pixelAspectRatio(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=yt({num:tl(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*tl(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:tl(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*tl(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")})}getDisplayWidth(){return Y(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()})}get displayWidth(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(void 0!==i){const e=tl(i,"displayWidth","getDisplayWidth");if(null!==e)return e}const r=tl(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return tl(r,"displayWidth","getDisplayWidth")}getDisplayHeight(){return Y(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()})}get displayHeight(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(void 0!==i){const e=tl(i,"displayHeight","getDisplayHeight");if(null!==e)return e}const r=tl(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return tl(r,"displayHeight","getDisplayHeight")}getColorSpace(){return Y(this,null,function*(){return this._backing.getColorSpace()})}hasHighDynamicRange(){return Y(this,null,function*(){const e=yield this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix})}canBeTransparent(){return Y(this,null,function*(){return this._backing.canBeTransparent()})}getDecoderConfig(){return Y(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return Y(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return Y(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(oe(null!==t),Mo.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(yield VideoDecoder.isConfigSupported(e)).supported}catch(e){return Pt._error("Error during decodability check:",e),!1}})}determinePacketType(e){return Y(this,null,function*(){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=yield this.getCodec();if(null===t)return null;const i=yield this.getDecoderConfig();return oe(i),wi(t,i,e.data)})}computeFrameRateMetrics(){return Y(this,arguments,function*(e={}){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!mt(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const r=yield this.getTimeResolution(),n=null!=(t=e.targetPacketCount)?t:256,s=new zo(this),a=[];let o=-1/0,l=0;try{for(var c,u,d,h=te(s.packets(void 0,void 0,{metadataOnly:!0}));c=!(u=yield h.next()).done;c=!1){const e=u.value;if(a.length>=n&&e.timestamp>=o)break;a.push(e.timestamp),o=Math.max(o,e.timestamp),l++}}catch(u){d=[u]}finally{try{c&&(u=h.return)&&(yield u.call(h))}finally{if(d)throw d[0]}}const f=new Float64Array(a.length);for(let R=0;R<a.length;R++)f[R]=Math.round(a[R]*r);f.sort();let m=1;for(let R=1;R<f.length;R++)f[R]!==f[m-1]&&(f[m++]=f[R]);if(m<2)return{underlyingFrameRate:null,bestGuessFrameRate:r,minFrameRate:r,maxFrameRate:r,averageFrameRate:r,medianFrameRate:r,frameRateIsConstant:!0,probedPacketCount:l};const p=f.subarray(0,m),g=ul(p,r),k=null!=g?g:r,y=null!==g?r/g:null,b=new Map;let T=1/0,v=-1/0,w=0;for(let R=1;R<m;R++){const e=p[R]-p[R-1],t=null!==y?Math.max(1,Math.round(e/y)):e;b.set(t,(null!=(i=b.get(t))?i:0)+1),T=Math.min(T,t),v=Math.max(v,t),w+=t}const S=m-1,P=[...b.keys()].sort((e,t)=>e-t),I=S-1>>1,x=S>>1;let C=0,B=0,E=0;for(const R of P)if(E+=b.get(R),0===C&&E>I&&(C=R),E>x){B=R;break}const _=(k/C+k/B)/2;return{underlyingFrameRate:g,bestGuessFrameRate:null!==g?g:hl(_),minFrameRate:k/v,maxFrameRate:k/T,averageFrameRate:k*S/w,medianFrameRate:_,frameRateIsConstant:null!==g&&1===T&&1===v,probedPacketCount:l}})}}class nl extends el{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}getCodec(){return Y(this,null,function*(){return this._backing.getCodec()})}get codec(){return tl(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return Y(this,null,function*(){var e,t,i;return null==(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))||i})}getNumberOfChannels(){return Y(this,null,function*(){return this._backing.getNumberOfChannels()})}get numberOfChannels(){return tl(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}getSampleRate(){return Y(this,null,function*(){return this._backing.getSampleRate()})}get sampleRate(){return tl(this._backing.getSampleRate(),"sampleRate","getSampleRate")}getDecoderConfig(){return Y(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return Y(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return Y(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(oe(null!==t),Do.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(yield AudioDecoder.isConfigSupported(e)).supported}catch(e){return Pt._error("Error during decodability check:",e),!1}})}determinePacketType(e){return Y(this,null,function*(){if(!(e instanceof Tr))throw new TypeError("packet must be an EncodedPacket.");return null===(yield this.getCodec())?null:"key"})}}const sl=e=>-(null!=e?e:-1/0),al=e=>-e,ol=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when provided, must be a function.");if(void 0!==e.sortBy&&"function"!==typeof e.sortBy)throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:e.filter?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("query.filter must return or resolve to a boolean.");return e},r=e.filter(t);return ct(r)?r.then(i):i(r)}:void 0,sortBy:e.sortBy?t=>{const i=e=>{if("number"!==typeof e&&(!Array.isArray(e)||!e.every(e=>"number"===typeof e)))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return e},r=e.sortBy(t);return ct(r)?r.then(i):i(r)}:void 0}},ll=(e,t)=>({filter:(null==e?void 0:e.filter)||(null==t?void 0:t.filter)?i=>{var r,n;const s=null==(n=null==(r=null==e?void 0:e.filter)?void 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t?(i=xl(e,!0),r=xl(e,!0)):(r=xl(e,!1),i=xl(e,!1)),4294967296*r+i},Rl=e=>4294967296*Cl(e)+Cl(e),Fl=e=>4294967296*El(e)+Cl(e),Al=e=>{const t=Bl(e),i=(e=>{bl(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},Ml=e=>{bl(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Dl=e=>{bl(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},Nl=(e,t)=>{bl(e,t);let i="";for(let r=0;r<t;r++)i+=String.fromCharCode(e.bytes[e.bufferPos++]);return i},Ol=(e,t,i)=>pe.decode(Tl(e,t)).split("\n").map(e=>e.trim()).filter(e=>{var t;return e.length>0&&!(null==(t=null==i?void 0:i.ignore)?void 0:t.call(i,e))});var Ll,zl,Ul,ql;(zl=Ll||(Ll={}))[zl.Unsynchronisation=128]="Unsynchronisation",zl[zl.ExtendedHeader=64]="ExtendedHeader",zl[zl.ExperimentalIndicator=32]="ExperimentalIndicator",zl[zl.Footer=16]="Footer",(ql=Ul||(Ul={}))[ql.ISO_8859_1=0]="ISO_8859_1",ql[ql.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",ql[ql.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",ql[ql.UTF_8=3]="UTF_8";const Wl=128,Hl=10,Vl=["Blues","Classic rock","Country","Dance","Disco","Funk","Grunge","Hip-hop","Jazz","Metal","New age","Oldies","Other","Pop","Rhythm and blues","Rap","Reggae","Rock","Techno","Industrial","Alternative","Ska","Death metal","Pranks","Soundtrack","Euro-techno","Ambient","Trip-hop","Vocal","Jazz & funk","Fusion","Trance","Classical","Instrumental","Acid","House","Game","Sound clip","Gospel","Noise","Alternative rock","Bass","Soul","Punk","Space","Meditative","Instrumental pop","Instrumental rock","Ethnic","Gothic","Darkwave","Techno-industrial","Electronic","Pop-folk","Eurodance","Dream","Southern 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u;if(0===c[28]&&0!==c[29]){const i=c[29];i>0&&(null!=t.trackNumber||(t.trackNumber=i)),e.skip(-30),u=Kl(e,28),e.skip(2)}else e.skip(-30),u=Kl(e,30);u&&(null!=t.comment||(t.comment=u));const d=vl(e);d<Vl.length&&(null!=t.genre||(t.genre=Vl[d]))},Kl=(e,t)=>{const i=Tl(e,t),r=ut(i.indexOf(0),i.length),n=i.subarray(0,r);let s="";for(let a=0;a<n.length;a++)s+=String.fromCharCode(n[a]);return s.trimEnd()},Xl=e=>{const t=e.filePos,i=Nl(e,3),r=vl(e),n=vl(e),s=vl(e),a=Cl(e);if("ID3"!==i||255===r||255===n||0!==(2155905152&a))return e.filePos=t,null;let o=mr(a);return s&Ll.Footer&&(o+=Hl),{majorVersion:r,revision:n,flags:s,size:o}},$l=(e,t,i)=>{var r,n,s,a,o,l;if(![2,3,4].includes(t.majorVersion))return void Pt._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Ll.Footer?t.size-Hl:t.size,u=Tl(e,c),d=new Gl(t,u);if(t.flags&Ll.Unsynchronisation&&3===t.majorVersion&&d.ununsynchronizeAll(),t.flags&Ll.ExtendedHeader){const 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e=null!=(n=(r=i.raw).TXXX)?n:r.TXXX={},t=d.readId3V2TextEncoding(),s=d.readId3V2Text(t,u),a=d.readId3V2Text(t,u);null!=e[s]||(e[s]=a)}else"T"===e.id[0]?null!=(s=i.raw)[a=e.id]||(s[a]=d.readId3V2EncodingAndText(u)):null!=(o=i.raw)[l=e.id]||(o[l]=d.readBytes(e.size));switch(d.pos=c,e.id){case"TIT2":case"TT2":null!=i.title||(i.title=d.readId3V2EncodingAndText(u));break;case"TIT3":case"TT3":null!=i.description||(i.description=d.readId3V2EncodingAndText(u));break;case"TPE1":case"TP1":null!=i.artist||(i.artist=d.readId3V2EncodingAndText(u));break;case"TALB":case"TAL":null!=i.album||(i.album=d.readId3V2EncodingAndText(u));break;case"TPE2":case"TP2":null!=i.albumArtist||(i.albumArtist=d.readId3V2EncodingAndText(u));break;case"TRCK":case"TRK":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.trackNumber||(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.tracksTotal||(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.discNumber||(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.discsTotal||(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=d.readId3V2EncodingAndText(u);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==Vl[e]){null!=i.genre||(i.genre=Vl[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==Vl[e]){null!=i.genre||(i.genre=Vl[e]);break}}null!=i.genre||(i.genre=e)}break;case"TDRC":case"TDAT":{const e=d.readId3V2EncodingAndText(u),t=new Date(e);Number.isNaN(t.getTime())||null!=i.date||(i.date=t)}break;case"TYER":case"TYE":{const e=d.readId3V2EncodingAndText(u),t=Number.parseInt(e,10);Number.isInteger(t)&&(null!=i.date||(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.lyrics||(i.lyrics=d.readId3V2Text(e,u))}break;case"COMM":case"COM":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.comment||(i.comment=d.readId3V2Text(e,u))}break;case"APIC":case"PIC":{const e=d.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=d.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=d.readId3V2Text(e,u);const n=d.readU8(),s=d.readId3V2Text(e,u).trimEnd(),a=u-d.pos;if(a>=0){const e=d.readBytes(a);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===n?"coverFront":4===n?"coverBack":"unknown",description:s})}}break;default:d.pos+=e.size}d.pos=u}}};class Gl{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 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this.pos=i+Math.min(e+1,r.length),pe.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class Ql{constructor(e){this.host=e,this.closed=!1,this.resumes=new WeakMap}ensure(e){if(this.closed)return null;if(this.host.audioContext)return this.host.audioContext;const t=window.AudioContext||window.webkitAudioContext;let i;try{i=new t({sampleRate:e})}catch(n){i=new t}if(this.closed)return i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null;let r=null;try{r=i.createGain(),r.connect(i.destination);const e=this.host.muted?0:this.host.volume;return r.gain.value=e*e,this.closed?(r.disconnect(),i.close().catch(e=>console.warn("MediaBunny obsolete context cleanup:",e)),null):(this.host.audioContext=i,this.host.gainNode=r,i)}catch(s){try{null==r||r.disconnect()}catch(a){console.warn("MediaBunny gain setup cleanup:",a)}throw i.close().catch(e=>console.warn("MediaBunny context 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n=function(e,t,i,r){const n=e.audioContextStartTime+(t-e.playbackTimeAtStart)/e.playbackRate,s=(n+i/e.playbackRate-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;return{startAt:Math.max(n,r),offset:n<r?(r-n)*e.playbackRate:null,endMediaTime:s}}(this.host,t,e.duration,i.currentTime);if(null!==n.offset&&n.offset>=e.duration)return;const s=i.createBufferSource();this.host.queuedNodes.add(s);try{s.buffer=e,s.connect(r),s.playbackRate.value=this.host.playbackRate,s.onended=()=>{if(this.host.queuedNodes.has(s))try{this.release(s,!1)}catch(e){console.warn("MediaBunny ended node cleanup:",e)}},null===n.offset?s.start(n.startAt):s.start(n.startAt,n.offset),this.host.latestScheduledEndTime=Math.max(this.host.latestScheduledEndTime,n.endMediaTime)}catch(a){try{this.release(s,!0)}catch(o){console.warn("MediaBunny audio node cleanup:",o)}throw a}}}const Jl=Symbol("cancelled");class Zl{constructor(){this.cancelled=!1,this.waits=new Set,this.timers=new Map}wait(e){return new 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t=this.closing.get(e);t||(t=Promise.resolve().then(()=>e.return()).then(()=>{}),this.closing.set(e,t)),yield t})}cancel(){var e;null==(e=this.task)||e.cancel(),this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e))}run(e){return Y(this,null,function*(){if(this.host.asyncId!==e)return;this.cancel();const t=this.host.audioSink,i=this.host.audioContext;if(!t||!i||this.host.paused||this.host.asyncId!==e)return;const r=new Zl;this.task=r;let n=null;const s=()=>!r.cancelled&&this.task===r&&this.host.asyncId===e&&!this.host.paused&&this.host.audioContext===i&&(!n||this.host.audioIterator===n);try{for(n=t.buffers(this.host.currentTime),this.host.audioIterator=n;s();){const e=[];let t=!1;for(let i=0;i<16;i++){const i=yield r.wait(n.next());if(i===Jl||!s())return;if(i.done){t=!0;break}e.push(i.value)}if(e.length&&"suspended"===i.state){if((yield r.wait(this.contexts.resume(i)))===Jl||!s())return;tc(this.host.events,s,["canplay","playing"])}for(const i of e){if(!s())return;this.nodes.schedule(i)}if(t)return;if(!(yield r.delay(0))||!s())return;for(;this.host.latestScheduledEndTime-this.host.currentTime>1;)if(!(yield r.delay(50))||!s())return}}catch(a){if(s())throw a}finally{r.cancel(),this.task===r&&(this.task=null,this.stopIterator().catch(e=>console.warn("MediaBunny audio iterator cleanup:",e)))}})}}class rc{constructor(e,d){X(this,u),X(this,t,!1),X(this,i,0),X(this,r),X(this,n),X(this,s),X(this,a,null),X(this,o,null),X(this,l,null),X(this,c),this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set,$(this,r,new Ql(this)),$(this,n,new Yl(this)),$(this,s,new ic(this,K(this,r),K(this,n))),$(this,c,d)}get currentTime(){return(e=this).paused||!e.audioContext?e.playbackTimeAtStart:(e.audioContext.currentTime-e.audioContextStartTime)*e.playbackRate+e.playbackTimeAtStart;var e}ensureAudioContext(e){K(this,r).ensure(e)}updateGain(){K(this,r).updateGain()}stopQueuedNodes(){K(this,n).stop()}stopIterator(){return Y(this,null,function*(){yield K(this,s).stopIterator()})}handleNoAudioTrack(){K(this,t)||(this.audioSink=null,this.ensureAudioContext())}cancelPending(){Q(this,i)._++;try{this.pause()}finally{$(this,l,null),this.input=null,this.audioSink=null}}load(e,r){return Y(this,null,function*(){if(K(this,t))return;this.cancelPending();const n=K(this,i);this.playbackTimeAtStart=0,this.audioContextStartTime=0,this.latestScheduledEndTime=0;const s=Promise.resolve().then(()=>G(this,u,d).call(this,e,n,r));$(this,l,s);try{yield s}finally{K(this,l)===s&&$(this,l,null)}})}runIterator(e){return Y(this,null,function*(){K(this,t)||(yield K(this,s).run(e))})}play(){return Y(this,null,function*(){if(K(this,t))return;if(K(this,o))return K(this,o);if(!this.paused)return;const e=new Zl;$(this,a,e);const r=K(this,i),n=G(this,u,f).call(this,e,r);$(this,o,n);try{yield n}finally{K(this,a)===e&&($(this,a,null),$(this,o,null))}})}pause(){var e;this.paused||(this.playbackTimeAtStart=this.currentTime),this.paused=!0,this.asyncId++,null==(e=K(this,a))||e.cancel(),$(this,a,null),$(this,o,null),K(this,s).cancel(),this.stopQueuedNodes()}seek(e){return Y(this,null,function*(){var i,r;if(K(this,t))return;const n=!this.paused;K(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=null!=(r=null==(i=this.audioContext)?void 0:i.currentTime)?r:0,this.latestScheduledEndTime=this.playbackTimeAtStart;const a=++this.asyncId;n&&G(this,u,h).call(this,a)})}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){var i,r;if(K(this,t)||e===this.playbackRate)return;const n=this.currentTime;K(this,s).cancel(),this.stopQueuedNodes(),this.playbackTimeAtStart=n,this.audioContextStartTime=null!=(r=null==(i=this.audioContext)?void 0:i.currentTime)?r:0,this.playbackRate=e,this.latestScheduledEndTime=n;const a=++this.asyncId;this.paused||G(this,u,h).call(this,a)}destroy(){if(K(this,t))return;$(this,t,!0),Q(this,i)._++;const e=[];for(const t of[()=>this.pause(),()=>K(this,r).destroy()])try{t()}catch(n){e.push(n)}if(this.input=null,this.audioSink=null,$(this,l,null),e.length)throw e[0]}}t=new WeakMap,i=new WeakMap,r=new WeakMap,n=new WeakMap,s=new WeakMap,a=new WeakMap,o=new WeakMap,l=new WeakMap,c=new WeakMap,u=new WeakSet,d=function(e,r,n){return Y(this,arguments,function*({input:e,audioTrack:r,duration:n},s,a){const o=()=>!K(this,t)&&K(this,i)===s;if(o()){this.input=e,this.duration=n;try{const e=r&&null!==r.codec&&(yield r.canDecode());if(!o())return;if(e){if(this.ensureAudioContext(r.sampleRate),!o())return;this.audioSink=new Zo(r)}else this.handleNoAudioTrack();o()&&(null==a||a())}catch(l){if(o())throw l}}})},h=function(e){this.runIterator(e).catch(i=>{if(!K(this,t)&&e===this.asyncId){try{this.pause()}catch(r){console.warn("MediaBunny audio failure cleanup:",r)}try{K(this,c)?K(this,c).call(this,i):this.events.emit("error",i)}catch(r){console.warn("MediaBunny audio error listener:",r)}}})},f=function(e,n){return Y(this,null,function*(){const s=()=>!K(this,t)&&!e.cancelled&&K(this,i)===n;try{const t=K(this,r).ensure();if(!t||!s())return;if("suspended"===t.state){if((yield e.wait(K(this,r).resume(t)))===Jl||!s())return}if(K(this,l)){if((yield e.wait(K(this,l)))===Jl||!s())return}this.audioContextStartTime=t.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1,G(this,u,h).call(this,++this.asyncId)}catch(a){if(s())throw a}})};const nc=new WeakMap;function sc(e,t,i){return Y(this,null,function*(){var r;const{input:n,loadSeq:s}=e;if(!(null==(r=e.media)?void 0:r.isHls)||!n||e.destroyed)return;const a={};nc.set(e,a);const o=()=>!e.destroyed&&e.loadSeq===s&&e.input===n&&nc.get(e)===a;for(;o();){const r=e.media;if(!(null==r?void 0:r.isHls))return;let s;try{s=yield i(n,r,t,o)}catch(l){if(!o())return;if(e.media===r)throw l;continue}if(!o())return;if(e.media===r){if(s)try{yield e.replaceTracks(s)}catch(l){if(o())throw l}return}}})}function ac(e,t,i,r){return Y(this,null,function*(){var n;const s=yield e.getVideoTracks();if(!r())return null;const a="auto"===i?yield e.getPrimaryVideoTrack():null!=(n=s.find(e=>e.id===i))?n:t.videoTrack;if(!r()||!a)return null;let o=t.audioTrack,l=t.audioMode;return o&&a.canBePairedWith(o)||(o=yield a.getPrimaryPairableAudioTrack(),l="auto"),{videoTrack:a,audioTrack:o,videoMode:"auto"===i?"auto":"manual",audioMode:l}})}function oc(e,t,i,r){return Y(this,null,function*(){var n;const s=yield e.getAudioTracks();if(!r())return null;const a="auto"===i?t.videoTrack?yield t.videoTrack.getPrimaryPairableAudioTrack():yield e.getPrimaryAudioTrack():null!=(n=s.find(e=>e.id===i))?n:t.audioTrack;if(!r()||!a)return null;let o=t.videoTrack,l=t.videoMode;return o&&a.canBePairedWith(o)||(o=yield a.getPrimaryPairableVideoTrack(),l="auto"),{videoTrack:o,audioTrack:a,videoMode:l,audioMode:"auto"===i?"auto":"manual"}})}function lc(e){return Y(this,null,function*(){var t,i;return null!=(i=null!=(t=yield e.getAverageBitrate())?t:yield e.getBitrate())?i:0})}const cc=/\.m3u8(?:$|[?#])/i;function uc(e){return"string"===typeof e&&cc.test(e)}function dc(e){const t=function(e){return"string"===typeof e?new ua(e):e instanceof Blob?new aa(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new fa(e):null!=e?e:null}(e);return t?new ml({source:t,formats:uc(e)?eo:Za}):null}class hc{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){var e;return null==(e=this.controller)?void 0:e.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}wait(e,t){return Y(this,null,function*(){try{yield Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}})}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,null==e||e.dispose()}cancel(){var e;if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),null==(e=this.controller)||e.abort(),this.disposeInput()}}}function fc(e){return Y(this,arguments,function*({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),n=t||i,s=Boolean(n&&(yield n.isLive()));let a=Number.NaN;return r.length>0&&(a=yield e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==a||s||(a=yield e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:null!=a?a:Number.NaN})}function mc(){let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}}class pc{constructor(e){this.host=e,this.wanted=!1,this.playing=null,this.seeking=null}operation(){return V(H({},mc()),{source:this.host.loadSeq,complete:mc()})}current(e,t){return!this.host.destroyed&&e.source===this.host.loadSeq&&this[t]===e}cancelPlay(){const e=this.playing;this.playing=null,null==e||e.resolve()}invalidate(){this.cancelPlay(),this.wanted=!1;const e=this.seeking;this.seeking=null,null==e||e.complete.resolve(),null==e||e.resolve(),this.host.seeking=!1}ended(){this.wanted=!1,this.cancelPlay()}stop(){this.host.paused||(this.host.paused=!0,this.stopEngines(),this.host.events.emit("pause"))}stopEngines(){const e=[];for(const i of[()=>this.host.audio.pause(),()=>this.host.video.stop()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}pause(){this.wanted=!1,this.cancelPlay(),this.stop()}play(){if(this.host.destroyed)return Promise.resolve();if(this.wanted=!0,this.playing)return this.playing.promise;if(this.host.ended)return this.seek(0,!0);if(!this.host.paused&&!this.seeking)return Promise.resolve();const e=this.operation();return this.playing=e,this.runPlay(e).then(e.resolve,e.reject),e.promise}runPlay(e){return Y(this,null,function*(){const t=()=>this.current(e,"playing")&&this.wanted;try{for(;this.seeking;)if(yield this.seeking.complete.promise,!t())return;if(!t())return;if(this.host.paused=!1,yield this.host.audio.play(),!t())return void(this.wanted&&!this.host.destroyed||this.host.audio.pause());this.host.video.start(this.host.audio),tc(this.host.events,t,["play","playing"])}catch(i){if(!t())return;this.wanted=!1,this.host.paused=!0;try{this.stopEngines()}catch(r){console.warn("MediaBunny play cleanup error:",r)}throw i}finally{this.playing===e&&(this.playing=null)}})}seek(e,t){return this.position(t=>Y(this,null,function*(){const i=this.host.audio.seek(e),r=t()?this.host.video.seek(e):Promise.resolve();yield Promise.all([i,r])}),["seeked"],!1,t)}replace(e,t){return this.position(i=>Y(this,null,function*(){e.duration=yield fc(e),i()&&(this.host.media=e,yield Promise.all([this.host.video.load(e),this.host.audio.load(e)]),i()&&(ec(this.host),yield Promise.all([this.host.video.seek(t),this.host.audio.seek(t)]),i()&&(this.host.readyState=4,this.host.networkState=1)))}),["loadedmetadata","durationchange","progress","loadeddata","canplay","canplaythrough","seeked"],!0)}position(e,t,i,r){if(this.host.destroyed)return Promise.resolve();this.wanted=null!=r?r:this.seeking?this.wanted:!this.host.paused,this.cancelPlay();const n=this.seeking,s=this.operation();return this.seeking=s,null==n||n.complete.resolve(),null==n||n.resolve(),this.runPosition(s,e,t,i).then(s.resolve,s.reject),s.promise}runPosition(e,t,i,r){return Y(this,null,function*(){const n=()=>this.current(e,"seeking");let s=!1;try{if(r&&this.stop(),!n())return;if(this.host.ended=!1,this.host.seeking=!0,tc(this.host.events,n,["seeking","waiting"]),!n())return;if(r||this.stop(),!n())return;if(yield t(n),!n())return;if(this.host.seeking=!1,e.complete.resolve(),tc(this.host.events,n,i),!n())return;this.seeking=null,s=this.wanted}catch(a){if(!n())return;throw this.host.seeking=!1,this.wanted=!1,this.cancelPlay(),this.host.reportError(a),a}finally{e.complete.resolve(),this.seeking===e&&(this.seeking=null)}s&&(yield this.play())})}}const gc=new WeakMap,kc=new WeakMap;function yc(e){const t=kc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.next()).then(e=>{var t;return null!=(t=e.value)?t:null});kc.set(e,i);const r=()=>{kc.get(e)===i&&kc.delete(e)};return i.then(r,r),i}function bc(e,t,i,r,n){const s=i?Math.max(.06,r/Math.max(1,n)):0;return i&&e<t-s?"skip":e<=t+s?"draw":"queue"}class Tc{constructor(){this.image=null}cancel(){this.image&&(this.image.onload=null,this.image.onerror=null,this.image=null)}draw(e,t,i,r){this.cancel();const n=new Image;this.image=n,n.onload=()=>{if(this.image===n&&t()){this.cancel();try{i(n)}catch(e){r(e)}}},n.onerror=()=>{this.image===n&&this.cancel()},n.src=e}}class vc{constructor(e,t,i,r){this.host=e,this.ready=t,this.draw=i,this.failure=r,this.stopped=!1,this.closed=!1,this.scheduled=null,this.fetching=null}current(e){return!this.closed&&!this.stopped&&this.host.asyncId===e}update(e){return Y(this,null,function*(){var t;const i=this.host.videoIterator;if(!i||!this.ready()||!this.current(e)||this.host.isFetching)return;const r={};this.fetching=r,this.host.isFetching=!0;const n=()=>this.current(e)&&this.host.videoIterator===i;try{for(;n();){const e=yield yc(i);if(!n()||!e)return;const r=null==(t=this.host.audioClock)?void 0:t.currentTime;if(void 0===r)return;const s=bc(e.timestamp,r,this.host.dropLateFrames,this.host.avSyncTolerance,this.host.playbackRate);if("skip"!==s){if("draw"!==s)return void(this.host.nextFrame=e);this.draw(e)}}}catch(s){if(n())throw s}finally{this.fetching===r&&(this.fetching=null,this.host.isFetching=!1)}})}request(e){this.update(e).catch(t=>{this.current(e)&&(this.stop(),this.report(t))})}report(e){try{this.failure(e)}catch(t){console.warn("MediaBunny video error listener:",t)}}cancelFrame(){null!==this.scheduled&&(cancelAnimationFrame(this.scheduled),this.scheduled=null)}schedule(e){if(!this.current(e))return;this.cancelFrame();const t=requestAnimationFrame(()=>{if(this.scheduled===t&&this.current(e)){this.scheduled=null;try{this.render()}catch(i){this.stop(),this.report(i)}}});this.scheduled=t,this.host.rafId=t}render(){const e=this.host.asyncId,t=()=>this.current(e);if(!t()||!this.host.audioClock)return;const i=this.host.audioClock.currentTime,r=Date.now();if(r-this.host.lastTimeUpdate>=this.host.timeupdateInterval){if(this.host.events.emit("timeupdate"),!t())return;this.host.lastTimeUpdate=r}if(this.ready()){if(Number.isFinite(this.host.duration)&&i>=this.host.duration){this.stop(),this.host.stalled=!1;const e=this.host.asyncId;return void tc(this.host.events,()=>!this.closed&&this.host.asyncId===e,["ended","pause","canplay"])}if(this.host.nextFrame&&this.host.nextFrame.timestamp<=i){if(this.draw(this.host.nextFrame),this.host.nextFrame=null,this.request(e),this.host.stalled){if(tc(this.host.events,t,["canplay","playing"]),!t())return;this.host.stalled=!1}}else this.host.nextFrame||(this.request(e),Number.isFinite(this.host.duration)&&i<this.host.duration&&!this.host.stalled&&(this.host.stalled=!0,this.host.events.emit("waiting")));this.schedule(e)}else this.schedule(e)}start(e){this.closed||(this.stop(),this.stopped=!1,this.host.audioClock=e,this.host.stalled=!1,this.host.nextFrame||this.request(this.host.asyncId),this.schedule(this.host.asyncId))}stop(){this.stopped=!0,this.host.asyncId++,this.cancelFrame(),this.fetching=null,this.host.isFetching=!1}destroy(){this.closed||(this.stop(),this.closed=!0)}}class wc{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:n=.12,dropLateFrames:s=!1,poster:a="",preflightRange:o=!1,onError:l}){X(this,P),X(this,m,0),X(this,p,0),X(this,g,null),X(this,k,null),X(this,y,null),X(this,b,!1),X(this,T,!1),X(this,v,new Tc),X(this,w),X(this,S),this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=n,this.dropLateFrames=s,this.poster=a,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1,$(this,S,l),$(this,w,new vc(this,()=>!K(this,T),e=>G(this,P,E).call(this,e,!0),e=>G(this,P,C).call(this,e)))}preflight(e,t,i){return Y(this,null,function*(){return function(e,t,i,r,n=()=>!0){return Y(this,null,function*(){if((null==r?void 0:r.aborted)||!n())return!1;if(!t||"string"!==typeof e||uc(e))return!0;try{const t=yield fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if((null==r?void 0:r.aborted)||!n())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!((null==r?void 0:r.aborted)||!n())&&(console.warn("Preflight check failed:",s),!0)}})}(e,this.preflightRange,this.events,t,i)})}drawPoster(){if(K(this,b)||!this.poster||this.posterDrawn)return;const e=K(this,m);K(this,v).draw(this.poster,()=>G(this,P,I).call(this,e),e=>{this.clear(),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,G(this,P,x).call(this).drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e=>G(this,P,C).call(this,e))}stopIterator(){return Y(this,null,function*(){const e=this.videoIterator;this.videoIterator=null,this.nextFrame=null,yield function(e){if(!e)return Promise.resolve();const t=gc.get(e);if(t)return t;const i=Promise.resolve().then(()=>e.return()).then(()=>{});return gc.set(e,i),i}(e)})}clear(){G(this,P,x).call(this).clearRect(0,0,this.canvas.width,this.canvas.height)}cancelPending(){Q(this,m)._++,Q(this,p)._++,this.stop(),G(this,P,B).call(this),K(this,v).cancel(),$(this,T,!1),$(this,g,null),$(this,k,null),$(this,y,null),this.videoSink=null,this.input=null}load(e,t){return Y(this,null,function*(){if(K(this,b))return;this.cancelPending();const i=K(this,m),r=K(this,p);$(this,T,!0);const n=Promise.resolve().then(()=>G(this,P,_).call(this,e,i,r,t));$(this,g,n);try{yield n}finally{K(this,g)===n&&$(this,g,null)}})}handleNoVideoTrack(){K(this,b)||(this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster())}resetIterator(e){return Y(this,null,function*(){if(K(this,b))return;const t=K(this,m),i=++Q(this,p)._,r=K(this,g);this.stop(),K(this,v).cancel(),$(this,T,!0);try{r&&(yield r),yield G(this,P,R).call(this,e,t,i)}catch(n){if(G(this,P,I).call(this,t)&&K(this,p)===i)throw G(this,P,B).call(this),n}finally{G(this,P,I).call(this,t)&&K(this,p)===i&&$(this,T,!1)}})}updateNextFrame(e){return Y(this,null,function*(){yield K(this,w).update(e)})}render(){K(this,w).render()}start(e){K(this,w).start(e)}stop(){K(this,w).stop()}seek(e){return Y(this,null,function*(){yield this.resetIterator(e)})}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){K(this,b)||($(this,b,!0),Q(this,m)._++,K(this,w).destroy(),K(this,v).cancel(),G(this,P,B).call(this),this.posterDrawn=!1,$(this,k,null),$(this,y,null),this.videoSink=null,this.input=null,this.audioClock=null)}}m=new WeakMap,p=new WeakMap,g=new WeakMap,k=new WeakMap,y=new WeakMap,b=new WeakMap,T=new WeakMap,v=new WeakMap,w=new WeakMap,S=new WeakMap,P=new WeakSet,I=function(e){return!K(this,b)&&K(this,m)===e},x=function(){if(!this.ctx)throw new Error("Canvas 2D context is unavailable.");return this.ctx},C=function(e){K(this,b)||(G(this,P,B).call(this),K(this,S)?K(this,S).call(this,e):this.events.emit("error",e))},B=function(){this.stopIterator().catch(e=>console.warn("MediaBunny iterator cleanup error:",e))},E=function(e,t){K(this,v).cancel(),t&&this.clear(),G(this,P,x).call(this).drawImage(e.canvas,0,0)},_=function(e,t,i,r){return Y(this,null,function*(){if(G(this,P,I).call(this,t))try{this.clear(),this.posterDrawn=!1;const{input:n,videoTrack:s,duration:a}=e;if(this.input=n,this.duration=a,!s)return this.handleNoVideoTrack(),void(null==r||r());const o=null!==s.codec&&(yield s.canDecode());if(!G(this,P,I).call(this,t))return;if(!o)return this.handleNoVideoTrack(),void(null==r||r());const l=yield s.canBeTransparent();if(!G(this,P,I).call(this,t))return;$(this,k,()=>new Go(s,{poolSize:2,fit:"contain",alpha:l})),this.videoSink=K(this,k).call(this),this.width=s.displayWidth,this.height=s.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,null==r||r(),G(this,P,I).call(this,t)&&(yield G(this,P,R).call(this,0,t,i))}catch(n){if(G(this,P,I).call(this,t))throw G(this,P,B).call(this),n}finally{G(this,P,I).call(this,t)&&K(this,p)===i&&$(this,T,!1)}})},R=function(e,t,i){return Y(this,null,function*(){if(!G(this,P,I).call(this,t)||K(this,p)!==i)return;G(this,P,B).call(this),K(this,k)&&this.videoSink===K(this,y)&&(this.videoSink=K(this,k).call(this));const r=this.videoSink;if(!r||!G(this,P,I).call(this,t))return;$(this,y,r);const n=r.canvases(e);this.videoIterator=n;const s=()=>G(this,P,I).call(this,t)&&K(this,p)===i&&this.videoIterator===n,a=yield yc(n);if(!s())return;const o=yield yc(n);s()&&(this.nextFrame=o,a?G(this,P,E).call(this,a,!1):this.drawPoster())})};class Sc{constructor({canvas:e,ctx:t,events:i,option:r={}}){var n,s,a,o,l;X(this,F),this.events=i,this.option=r,this.audio=new rc(i,e=>{try{this.pause()}catch(t){console.warn("MediaBunny audio coordinator cleanup:",t)}this.reportError(e)}),this.video=new wc({canvas:e,ctx:t,events:i,timeupdateInterval:null!=(n=r.timeupdateInterval)?n:250,avSyncTolerance:null!=(s=r.avSyncTolerance)?s:.12,dropLateFrames:null!=(a=r.dropLateFrames)&&a,poster:null!=(o=r.poster)?o:"",preflightRange:null!=(l=r.preflightRange)&&l,onError:e=>{try{this.pause()}catch(t){console.warn("MediaBunny video failure cleanup:",t)}this.reportError(e)}}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,$(this,F,new pc(this)),i.addEventListener("ended",()=>{this.destroyed||(this.ended=!0,this.paused=!0,K(this,F).ended(),this.audio.pause())})}load(e){return Y(this,null,function*(){var t,i;if(this.destroyed)return;const r=++this.loadSeq;if(K(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),null==(t=this.loadSession)||t.cancel(),r!==this.loadSeq||this.destroyed)return;if(this.pause(),r!==this.loadSeq||this.destroyed)return;this.disposeInput();const n=new hc;this.loadSession=n,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,n.defer(()=>this.events.emit("waiting")),n.defer(()=>this.events.emit("loadstart"));const s=Number.isFinite(this.option.loadTimeout)&&null!=(i=this.option.loadTimeout)?i:0;try{yield n.wait(this.performLoad(e,r,n),s)}catch(a){if(r!==this.loadSeq)return;const e=++this.loadSeq;if(K(this,F).invalidate(),this.video.cancelPending(),this.audio.cancelPending(),n.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.reportError(a)}})}performLoad(e,t){return Y(this,arguments,function*(e,t,i=this.loadSession){const r=()=>!this.destroyed&&t===this.loadSeq;if(!i||!(yield this.video.preflight(e,i.signal,r))||!r())return;const n=dc(e);if(!n)return this.video.handleNoVideoTrack(),void(r()&&this.audio.handleNoAudioTrack());i.own(n);const s=yield function(e,t){return Y(this,null,function*(){const i=yield e.getPrimaryVideoTrack(),r=i?yield i.getPrimaryPairableAudioTrack():yield e.getPrimaryAudioTrack(),n=yield fc({input:e,videoTrack:i,audioTrack:r}),s=i||r,a=uc(t);return{input:e,videoTrack:i,audioTrack:r,duration:n,isLive:!Number.isFinite(n)&&Boolean(s&&(yield s.isLive())),isHls:a,videoMode:a?"auto":"manual",audioMode:a?"auto":"manual"}})}(n,e);if(!r())return;if(!s.videoTrack&&!s.audioTrack)throw this.video.handleNoVideoTrack(),this.video.duration=Number.NaN,this.audio.duration=Number.NaN,new Error("Input has no audio or video tracks.");this.input=n,this.media=s;const a=function(e,t){let i=!1,r=!1,n=!1;function s(s){t()&&!n&&("video"===s?i=!0:r=!0,i&&r&&(n=!0,e()))}return{video:()=>s("video"),audio:()=>s("audio")}}(()=>{ec(this),this.readyState=1,tc(this.events,r,["loadedmetadata","durationchange","progress"])},r);try{const e=this.video.load(s,a.video),t=r()?this.audio.load(s,a.audio):Promise.resolve();if(yield Promise.all([e,t]),!r())return;ec(this),this.readyState=4,this.networkState=1,tc(this.events,r,["loadeddata","canplay","canplaythrough","progress"])}catch(o){if(!r())return;throw console.error("MediaBunny load error:",o),o}})}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){var e;null==(e=this.loadSession)||e.disposeInput(),this.input=null,this.media=null}replaceTracks(e){return Y(this,null,function*(){if(this.media&&!this.destroyed)return K(this,F).replace(H(H({},this.media),e),this.currentTime)})}selectHlsQuality(e){return Y(this,null,function*(){return function(e,t){return sc(e,t,ac)}(this,e)})}selectHlsAudio(e){return Y(this,null,function*(){return function(e,t){return sc(e,t,oc)}(this,e)})}getHlsState(){return Y(this,null,function*(){const e=this.media,t=this.loadSeq;if(this.destroyed)return null;try{const i=yield function(e){return Y(this,null,function*(){var t,i,r,n;if(!(null==e?void 0:e.isHls)||!e.input)return null;const[s,a]=yield Promise.all([e.input.getVideoTracks(),e.videoTrack?e.videoTrack.getPairableAudioTracks():[]]),[o,l]=yield Promise.all([Promise.all(s.map((e,t)=>Y(null,null,function*(){return{id:e.id,track:e,index:t,name:yield e.getName(),height:yield e.getDisplayHeight(),bitrate:yield lc(e)}}))),Promise.all(a.map((e,t)=>Y(null,null,function*(){const i=yield e.getName(),r=yield e.getLanguageCode();return{id:e.id,track:e,index:t,name:i,lang:r,language:r,bitrate:yield lc(e)}})))]);return{levels:o,audios:l,currentLevel:e.videoTrack&&null!=(t=o.find(t=>{var i;return t.id===(null==(i=e.videoTrack)?void 0:i.id)}))?t:null,currentAudio:e.audioTrack&&null!=(i=l.find(t=>{var i;return t.id===(null==(i=e.audioTrack)?void 0:i.id)}))?i:null,videoMode:null!=(r=e.videoMode)?r:"auto",audioMode:null!=(n=e.audioMode)?n:"auto"}})}(e);return this.destroyed||this.loadSeq!==t||this.media!==e?null:i}catch(i){if(this.destroyed||this.loadSeq!==t||this.media!==e)return null;throw i}})}play(){return Y(this,null,function*(){return K(this,F).play()})}pause(){K(this,F).pause()}seek(e){return Y(this,null,function*(){return K(this,F).seek(e)})}setVolume(e,t){this.audio.setVolume(e,t)}setPlaybackRate(e){this.audio.setPlaybackRate(e),this.video.setPlaybackRate(e)}reportError(e){if(this.destroyed)return;const t=e&&"object"===typeof e?Reflect.get(e,"message"):void 0;this.error={code:4,message:"string"===typeof t?t:String(e)},this.networkState=3,this.events.emit("error")}destroy(){if(this.destroyed)return;this.destroyed=!0,this.loadSeq++,K(this,F).invalidate();const e=[];for(const i of[()=>{var e;return null==(e=this.loadSession)?void 0:e.cancel()},()=>this.pause(),()=>this.disposeInput(),()=>this.audio.destroy(),()=>this.video.destroy()])try{i()}catch(t){e.push(t)}if(e.length)throw e[0]}get currentTime(){return this.audio.currentTime}get duration(){var e,t,i;return null!=(i=null!=(t=null==(e=this.media)?void 0:e.duration)?t:this.audio.duration)?i:this.video.duration}get videoWidth(){return this.video.width}get videoHeight(){return this.video.height}}F=new WeakMap;const Pc=new WeakMap;function Ic(e){let t=Pc.get(e);return t||(t={closed:!1,frames:new Set},Pc.set(e,t)),t}class xc{constructor({art:e,canvas:t,ctx:i,option:r}){var n,s;this.art=e,this.canvas=t,this.option=r,this.events=new ae,this.engine=new Sc({canvas:t,ctx:i,events:this.events,option:r}),this._src=null,this._volume=null!=(n=r.volume)?n:.7,this._muted=!!r.muted,this._playbackRate=1,this.engine.setVolume(this._volume,this._muted),this.setupEventForwarding(),r.source?this.src=r.source:(null==(s=e.option)?void 0:s.url)&&(this.src=e.option.url)}setupEventForwarding(){const{events:e}=this.art.constructor.config;e.forEach(e=>{this.events.addEventListener(e,e=>{this.art.emit(`video:${e.type}`,e)})})}addEventListener(e,t){this.events.addEventListener(e,t)}removeEventListener(e,t){this.events.removeEventListener(e,t)}get src(){return this._src}set src(e){this._src=e,e&&this.engine.load(e)}get currentSrc(){return this._src}get currentTime(){return this.engine.currentTime}set currentTime(e){Promise.resolve(this.engine.seek(Number(e)||0)).catch(()=>{})}get duration(){return this.engine.duration}get buffered(){return this.createTimeRanges(0,this.engine.duration)}get played(){return this.createTimeRanges(0,this.engine.currentTime)}get seekable(){return this.createTimeRanges(0,this.engine.duration)}createTimeRanges(e,t){return function(e,t,i){return!e||Number.isNaN(e)||i<=0?{length:0,start:()=>0,end:()=>0}:{length:1,start:()=>t,end:()=>i}}(this.engine.duration,e,t)}get paused(){return this.engine.paused}get playing(){return!this.engine.paused&&!this.engine.ended}get ended(){return this.engine.ended}get seeking(){return this.engine.seeking}get readyState(){return this.engine.readyState}get networkState(){return this.engine.networkState}get error(){return this.engine.error}get playbackRate(){return this._playbackRate}set playbackRate(e){const t=Number(e);Number.isNaN(t)||t<=0||(this._playbackRate=t,this.engine.setPlaybackRate(t),this.events.emit("ratechange"))}get volume(){return this._volume}set volume(e){var t;this._volume=(t=e,Math.max(0,Math.min(1,Number(t)||0))),this._muted=!1,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}get muted(){return this._muted}set muted(e){this._muted=!!e,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}play(){return this.engine.play()}pause(){this.engine.pause()}load(){this._src&&this.engine.load(this._src)}getM3u8State(){return this.engine.getHlsState()}switchM3u8Quality(e){return this.engine.selectHlsQuality(e)}switchM3u8Audio(e){return this.engine.selectHlsAudio(e)}get videoWidth(){return this.engine.videoWidth}get videoHeight(){return this.engine.videoHeight}get poster(){return this.option.poster||""}set poster(e){this.option.poster=e}get autoplay(){return this.option.autoplay||!1}set autoplay(e){}get loop(){return this.option.loop||!1}set loop(e){}get controls(){return!1}set controls(e){}get playsInline(){return!0}set playsInline(e){}get crossOrigin(){return this.option.crossOrigin||""}set crossOrigin(e){}get preload(){return"auto"}set preload(e){}get defaultMuted(){return!1}set defaultMuted(e){}get defaultPlaybackRate(){return 1}set defaultPlaybackRate(e){}canPlayType(e){return"maybe"}getBoundingClientRect(){return this.canvas.getBoundingClientRect()}requestVideoFrameCallback(e){return function(e,t){const i=Ic(e);if(i.closed)return 0;const r=requestAnimationFrame(n=>{i.frames.delete(r),i.closed||t(n,{presentationTime:e.engine.currentTime,expectedDisplayTime:n+16.6,width:e.engine.videoWidth,height:e.engine.videoHeight,mediaTime:e.engine.currentTime,presentedFrames:0,processingDuration:0,captureTime:n,receiveTime:n,rtpTimestamp:0})});return i.frames.add(r),r}(this,e)}cancelVideoFrameCallback(e){!function(e,t){Ic(e).frames.delete(t),cancelAnimationFrame(t)}(this,e)}setAttribute(e,t){"src"===e?this.src=t:"autoplay"===e?this.autoplay=t:"loop"===e?this.loop=t:"muted"===e?this.muted=!0:Reflect.apply(this.canvas.setAttribute,this.canvas,[e,t])}destroy(){if(function(e){const t=Ic(e);if(t.closed)return!1;t.closed=!0;for(const i of t.frames)cancelAnimationFrame(i);return t.frames.clear(),!0}(this))try{this.engine.destroy()}finally{this.events.destroy()}}}function Cc(e={}){return t=>{const i=t,{createElement:r}=i.constructor.utils,n=r("canvas"),s=new xc({art:i,canvas:n,ctx:n.getContext("2d"),option:e}),a=function(e,t,i,r){let n,s=!1;function a(){var i;s||!(null==(i=e.template)?void 0:i.$player)||e.option.autoSize||Object.assign(t.style,{width:"100%",height:"100%",objectFit:"contain"})}function o(){s||(s=!0,ie([()=>null==n?void 0:n.destroy(),()=>{e.mediabunny===i&&delete e.mediabunny},()=>i.destroy(),()=>{var t;return null==(t=e.off)?void 0:t.call(e,"resize",a)},()=>{var t;return null==(t=e.off)?void 0:t.call(e,"video:loadedmetadata",a)},()=>{var t;return null==(t=e.off)?void 0:t.call(e,"destroy",o)}]))}return{install:function(){e.on("resize",a),e.on("video:loadedmetadata",a),n=se({art:e,shim:i,option:r}),e.on("destroy",o)},destroy:o}}(i,n,s,e);try{i.mediabunny=s,function(e,t){const i=new Map,r=e,n=t;for(const a in e)if("function"===typeof r[a]){const t=r[a];i.set(a,t.bind(e))}const s=new Set([...Object.getOwnPropertyNames(t),...Object.getOwnPropertyNames(Object.getPrototypeOf(t))]);for(const a of s)"constructor"===a||a in e||Object.defineProperty(e,a,{get(){const e=n[a];return"function"===typeof e?e.bind(t):e},set(e){n[a]=e},configurable:!0,enumerable:!0});for(const[a,o]of i)r[a]=(...e)=>o(...e)}(n,s),a.install()}catch(o){try{a.destroy()}catch(l){console.warn("MediaBunny entry setup cleanup:",l)}throw o}return n}}return Object.defineProperty(Cc,"default",{value:Cc,writable:!0,configurable:!0}),Cc});
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