ArtPlayer/docs/compiled/artplayer-proxy-mediabunny.legacy.js

/*!
 * artplayer-proxy-mediabunny.js v1.0.0
 * Github: https://github.com/zhw2590582/ArtPlayer
 * (c) 2017-2026 Harvey Zack
 * Released under the MIT License.
 */
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e,t,r,n,a,i,s,o,c,u,l,d,f,p,m,g,v,k,b;return(0,h._)(this,function(h){switch(h.label){case 0:e=0,h.label=1;case 1:if(!((t=this.reader.requestSliceRange(e,_.MIN_BOX_HEADER_SIZE,_.MAX_BOX_HEADER_SIZE))instanceof Promise))return[3,3];return[4,t];case 2:t=h.sent(),h.label=3;case 3:if(!t||(r=e,!(n=(0,_.readBoxHeader)(t))))return[3,8];if("ftyp"!==n.name)return[3,4];return a=(0,S.readAscii)(t,4),this.isQuickTime="qt "===a,[3,7];case 4:if("moov"!==n.name)return[3,7];if(!((i=this.reader.requestSlice(t.filePos,n.contentSize))instanceof Promise))return[3,6];return[4,i];case 5:i=h.sent(),h.label=6;case 6:if(!i)return[3,8];this.moovSlice=i,this.readContiguousBoxes(this.moovSlice),this.tracks.sort(function(e,t){return Number(t.disposition.default)-Number(e.disposition.default)}),s=!0,o=!1,c=void 0;try{for(u=this.tracks[Symbol.iterator]();!(s=(l=u.next()).done);s=!0)f=(d=l.value).editListPreviousSegmentDurations/this.movieTimescale,d.editListOffset-=Math.round(f*d.timescale)}catch(e){o=!0,c=e}finally{try{s||null==u.return||u.return()}finally{if(o)throw c}}return[3,8];case 7:return e=r+n.totalSize,[3,1];case 8:if(!(this.isFragmented&&null!==this.reader.fileSize))return[3,15];if(!((p=this.reader.requestSlice(this.reader.fileSize-4,4))instanceof Promise))return[3,10];return[4,p];case 9:p=h.sent(),h.label=10;case 10:if((0,y.assert)(p),m=(0,S.readU32Be)(p),!((g=this.reader.fileSize-m)>=0&&g<=this.reader.fileSize-_.MAX_BOX_HEADER_SIZE))return[3,15];if(!((v=this.reader.requestSliceRange(g,_.MIN_BOX_HEADER_SIZE,_.MAX_BOX_HEADER_SIZE))instanceof Promise))return[3,12];return[4,v];case 11:v=h.sent(),h.label=12;case 12:if(!v||!((k=(0,_.readBoxHeader)(v))&&"mfra"===k.name))return[3,15];if(!((b=this.reader.requestSlice(v.filePos,k.contentSize))instanceof Promise))return[3,14];return[4,b];case 13:b=h.sent(),h.label=14;case 14:b&&this.readContiguousBoxes(b),h.label=15;case 15:return[2]}})}).call(this)}},{key:"getSampleTableForTrack",value:function(e){if(e.sampleTable)return e.sampleTable;var t={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};e.sampleTable=t,(0,y.assert)(this.moovSlice);var r=this.moovSlice.slice(e.sampleTableByteOffset);if(this.currentTrack=e,this.traverseBox(r),this.currentTrack=null,(null==(n=e.info)?void 0:n.type)==="audio"&&e.info.codec&&p.PCM_AUDIO_CODECS.includes(e.info.codec)&&0===t.sampleCompositionTimeOffsets.length){(0,y.assert)((null==(a=e.info)?void 0:a.type)==="audio");for(var n,a,i=(0,p.parsePcmCodec)(e.info.codec),s=[],o=[],c=0;c<t.sampleToChunk.length;c++){for(var u=t.sampleToChunk[c],l=t.sampleToChunk[c+1],d=(l?l.startChunkIndex:t.chunkOffsets.length)-u.startChunkIndex,f=0;f<d;f++){var h=u.startSampleIndex+f*u.samplesPerChunk,m=h+u.samplesPerChunk,g=(0,y.binarySearchLessOrEqual)(t.sampleTimingEntries,h,function(e){return e.startIndex}),v=t.sampleTimingEntries[g],k=(0,y.binarySearchLessOrEqual)(t.sampleTimingEntries,m,function(e){return e.startIndex}),b=t.sampleTimingEntries[k],_=v.startDecodeTimestamp+(h-v.startIndex)*v.delta,S=b.startDecodeTimestamp+(m-b.startIndex)*b.delta-_,w=(0,y.last)(s);w&&w.delta===S?w.count++:s.push({startIndex:u.startChunkIndex+f,startDecodeTimestamp:_,count:1,delta:S});var T=u.samplesPerChunk*i.sampleSize*e.info.numberOfChannels;o.push(T)}u.startSampleIndex=u.startChunkIndex,u.samplesPerChunk=1}t.sampleTimingEntries=s,t.sampleSizes=o}if(t.sampleCompositionTimeOffsets.length>0){t.presentationTimestamps=[];var I=!0,x=!1,E=void 0;try{for(var P,j=t.sampleTimingEntries[Symbol.iterator]();!(I=(P=j.next()).done);I=!0)for(var C=P.value,A=0;A<C.count;A++)t.presentationTimestamps.push({presentationTimestamp:C.startDecodeTimestamp+A*C.delta,sampleIndex:C.startIndex+A})}catch(e){x=!0,E=e}finally{try{I||null==j.return||j.return()}finally{if(x)throw E}}var B=!0,M=!1,D=void 0;try{for(var R,F=t.sampleCompositionTimeOffsets[Symbol.iterator]();!(B=(R=F.next()).done);B=!0)for(var U=R.value,O=0;O<U.count;O++){var L=U.startIndex+O,N=t.presentationTimestamps[L];N&&(N.presentationTimestamp+=U.offset)}}catch(e){M=!0,D=e}finally{try{B||null==F.return||F.return()}finally{if(M)throw D}}t.presentationTimestamps.sort(function(e,t){return e.presentationTimestamp-t.presentationTimestamp}),t.presentationTimestampIndexMap=Array(t.presentationTimestamps.length).fill(-1);for(var z=0;z<t.presentationTimestamps.length;z++)t.presentationTimestampIndexMap[t.presentationTimestamps[z].sampleIndex]=z}return t}},{key:"readFragment",value:function(e){return(0,i._)(function(){var t,r,n,a,i,s,o,c,u,l,f,p,m,g,v,k,b;return(0,h._)(this,function(h){switch(h.label){case 0:if((null==(t=this.lastReadFragment)?void 0:t.moofOffset)===e)return[2,this.lastReadFragment];if(!((r=this.reader.requestSliceRange(e,_.MIN_BOX_HEADER_SIZE,_.MAX_BOX_HEADER_SIZE))instanceof Promise))return[3,2];return[4,r];case 1:r=h.sent(),h.label=2;case 2:if((0,y.assert)(r),n=(0,_.readBoxHeader)(r),(0,y.assert)((null==n?void 0:n.name)==="moof"),!((a=this.reader.requestSlice(e,n.totalSize))instanceof Promise))return[3,4];return[4,a];case 3:a=h.sent(),h.label=4;case 4:(0,y.assert)(a),this.traverseBox(a),i=this.lastReadFragment,(0,y.assert)(i&&i.moofOffset===e),s=!0,o=!1,c=void 0;try{for(u=i.trackData[Symbol.iterator]();!(s=(l=u.next()).done);s=!0)m=(p=(f=(0,d._)(l.value,2)[1]).track).fragmentPositionCache,f.startTimestampIsFinal||((g=p.fragmentLookupTable.find(function(e){return e.moofOffset===i.moofOffset}))?B(f,g.timestamp):(v=(0,y.binarySearchLessOrEqual)(m,i.moofOffset-1,function(e){return e.moofOffset}),-1!==v&&(k=m[v],B(f,k.endTimestamp))),f.startTimestampIsFinal=!0),b=(0,y.binarySearchLessOrEqual)(m,f.startTimestamp,function(e){return e.startTimestamp}),(-1===b||m[b].moofOffset!==i.moofOffset)&&m.splice(b+1,0,{moofOffset:i.moofOffset,startTimestamp:f.startTimestamp,endTimestamp:f.endTimestamp})}catch(e){o=!0,c=e}finally{try{s||null==u.return||u.return()}finally{if(o)throw c}}return[2,i]}})}).call(this)}},{key:"readContiguousBoxes",value:function(e){for(var t=e.filePos;e.filePos-t<=e.length-_.MIN_BOX_HEADER_SIZE&&this.traverseBox(e););}},{key:"iterateContiguousBoxes",value:function(e){var t,r,n;return(0,h._)(this,function(a){switch(a.label){case 0:t=e.filePos,a.label=1;case 1:if(!(e.filePos-t<=e.length-_.MIN_BOX_HEADER_SIZE)||(r=e.filePos,!(n=(0,_.readBoxHeader)(e))))return[3,3];return[4,{boxInfo:n,slice:e}];case 2:return a.sent(),e.filePos=r+n.totalSize,[3,1];case 3:return[2]}})}},{key:"traverseBox",value:function(e){var t=e.filePos,r=(0,_.readBoxHeader)(e);if(!r)return!1;var n=e.filePos,a=t+r.totalSize;switch(r.name){case"mdia":case"minf":case"dinf":case"mfra":case"edts":case"wave":this.readContiguousBoxes(e.slice(n,r.contentSize));break;case"mvhd":var i=(0,S.readU8)(e);e.skip(3),1===i?(e.skip(16),this.movieTimescale=(0,S.readU32Be)(e),this.movieDurationInTimescale=(0,S.readU64Be)(e)):(e.skip(8),this.movieTimescale=(0,S.readU32Be)(e),this.movieDurationInTimescale=(0,S.readU32Be)(e));break;case"trak":var s={id:-1,demuxer:this,inputTrack:null,disposition:(0,l._)({},w.DEFAULT_TRACK_DISPOSITION),info:null,timescale:-1,durationInMovieTimescale:-1,durationInMediaTimescale:-1,rotation:0,internalCodecId:null,name:null,languageCode:y.UNDETERMINED_LANGUAGE,sampleTableByteOffset:-1,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:0,editListOffset:0};this.currentTrack=s,this.readContiguousBoxes(e.slice(n,r.contentSize)),-1!==s.id&&-1!==s.timescale&&null!==s.info&&("video"===s.info.type&&-1!==s.info.width?(s.inputTrack=new(0,v.InputVideoTrack)(this.input,new x(s)),this.tracks.push(s)):"audio"===s.info.type&&-1!==s.info.numberOfChannels&&(s.inputTrack=new(0,v.InputAudioTrack)(this.input,new E(s)),this.tracks.push(s))),this.currentTrack=null;break;case"tkhd":var o=this.currentTrack;if(!o)break;var c=(0,S.readU8)(e),u=(0,S.readU24Be)(e);if(o.disposition.default=!!(1&u),0===c)e.skip(8),o.id=(0,S.readU32Be)(e),e.skip(4),o.durationInMovieTimescale=(0,S.readU32Be)(e);else if(1===c)e.skip(16),o.id=(0,S.readU32Be)(e),e.skip(4),o.durationInMovieTimescale=(0,S.readU64Be)(e);else throw Error("Incorrect track header version ".concat(c,"."));e.skip(16);var d=[(0,_.readFixed_16_16)(e),(0,_.readFixed_16_16)(e),(0,_.readFixed_2_30)(e),(0,_.readFixed_16_16)(e),(0,_.readFixed_16_16)(e),(0,_.readFixed_2_30)(e),(0,_.readFixed_16_16)(e),(0,_.readFixed_16_16)(e),(0,_.readFixed_2_30)(e)],f=(0,y.normalizeRotation)((0,y.roundToMultiple)(M(d),90));(0,y.assert)(0===f||90===f||180===f||270===f),o.rotation=f;break;case"elst":var h=this.currentTrack;if(!h)break;var g=(0,S.readU8)(e);e.skip(3);for(var k=!1,b=0,T=(0,S.readU32Be)(e),I=0;I<T;I++){var P=1===g?(0,S.readU64Be)(e):(0,S.readU32Be)(e),j=1===g?(0,S.readI64Be)(e):(0,S.readI32Be)(e),C=(0,_.readFixed_16_16)(e);if(0!==P){if(k){console.warn("Unsupported edit list: multiple edits are not currently supported. Only using first edit.");break}if(-1===j){b+=P;continue}if(1!==C){console.warn("Unsupported edit list entry: media rate must be 1.");break}h.editListPreviousSegmentDurations=b,h.editListOffset=j,k=!0}}break;case"mdhd":var A=this.currentTrack;if(!A)break;var D=(0,S.readU8)(e);e.skip(3),0===D?(e.skip(8),A.timescale=(0,S.readU32Be)(e),A.durationInMediaTimescale=(0,S.readU32Be)(e)):1===D&&(e.skip(16),A.timescale=(0,S.readU32Be)(e),A.durationInMediaTimescale=(0,S.readU64Be)(e));var R=(0,S.readU16Be)(e);if(R>0){A.languageCode="";for(var F=0;F<3;F++)A.languageCode=String.fromCharCode(96+(31&R))+A.languageCode,R>>=5;(0,y.isIso639Dash2LanguageCode)(A.languageCode)||(A.languageCode=y.UNDETERMINED_LANGUAGE)}break;case"hdlr":var U=this.currentTrack;if(!U)break;e.skip(8);var O=(0,S.readAscii)(e,4);"vide"===O?U.info={type:"video",width:-1,height:-1,codec:null,codecDescription:null,colorSpace:null,avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null}:"soun"===O&&(U.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null});break;case"stbl":var L=this.currentTrack;if(!L)break;L.sampleTableByteOffset=t,this.readContiguousBoxes(e.slice(n,r.contentSize));break;case"stsd":var N=this.currentTrack;if(!N||null===N.info||N.sampleTable)break;var z=(0,S.readU8)(e);e.skip(3);for(var V=(0,S.readU32Be)(e),H=0;H<V;H++){var G=e.filePos,q=(0,_.readBoxHeader)(e);if(!q)break;N.internalCodecId=q.name;var W=q.name.toLowerCase();if("video"===N.info.type)"avc1"===W||"avc3"===W?(N.info.codec="avc",N.info.avcType="avc1"===W?1:3):"hvc1"===W||"hev1"===W?N.info.codec="hevc":"vp08"===W?N.info.codec="vp8":"vp09"===W?N.info.codec="vp9":"av01"===W?N.info.codec="av1":console.warn("Unsupported video codec (sample entry type '".concat(q.name,"').")),e.skip(24),N.info.width=(0,S.readU16Be)(e),N.info.height=(0,S.readU16Be)(e),e.skip(50),this.readContiguousBoxes(e.slice(e.filePos,G+q.totalSize-e.filePos));else{"mp4a"===W||("opus"===W?N.info.codec="opus":"flac"===W?N.info.codec="flac":"twos"===W||"sowt"===W||"raw "===W||"in24"===W||"in32"===W||"fl32"===W||"fl64"===W||"lpcm"===W||"ipcm"===W||"fpcm"===W||("ulaw"===W?N.info.codec="ulaw":"alaw"===W?N.info.codec="alaw":console.warn("Unsupported audio codec (sample entry type '".concat(q.name,"').")))),e.skip(8);var K=(0,S.readU16Be)(e);e.skip(6);var X=(0,S.readU16Be)(e),Z=(0,S.readU16Be)(e);e.skip(4);var Q=(0,S.readU32Be)(e)/65536;if(0===z&&K>0){if(1===K)e.skip(4),Z=8*(0,S.readU32Be)(e),e.skip(8);else if(2===K){e.skip(4),Q=(0,S.readF64Be)(e),X=(0,S.readU32Be)(e),e.skip(4),Z=(0,S.readU32Be)(e);var Y=(0,S.readU32Be)(e);if(e.skip(8),"lpcm"===W){var J=Z+7>>3,$=!!(1&Y),ee=!!(2&Y),et=4&Y?-1:0;Z>0&&Z<=64&&($?32===Z&&(N.info.codec=ee?"pcm-f32be":"pcm-f32"):et&1<<J-1?1===J?N.info.codec="pcm-s8":2===J?N.info.codec=ee?"pcm-s16be":"pcm-s16":3===J?N.info.codec=ee?"pcm-s24be":"pcm-s24":4===J&&(N.info.codec=ee?"pcm-s32be":"pcm-s32"):1===J&&(N.info.codec="pcm-u8")),null===N.info.codec&&console.warn("Unsupported PCM format.")}}}"opus"===N.info.codec&&(Q=p.OPUS_SAMPLE_RATE),N.info.numberOfChannels=X,N.info.sampleRate=Q,"twos"===W?8===Z?N.info.codec="pcm-s8":16===Z?N.info.codec="pcm-s16be":(console.warn("Unsupported sample size ".concat(Z," for codec 'twos'.")),N.info.codec=null):"sowt"===W?8===Z?N.info.codec="pcm-s8":16===Z?N.info.codec="pcm-s16":(console.warn("Unsupported sample size ".concat(Z," for codec 'sowt'.")),N.info.codec=null):"raw "===W?N.info.codec="pcm-u8":"in24"===W?N.info.codec="pcm-s24be":"in32"===W?N.info.codec="pcm-s32be":"fl32"===W?N.info.codec="pcm-f32be":"fl64"===W?N.info.codec="pcm-f64be":"ipcm"===W?N.info.codec="pcm-s16be":"fpcm"===W&&(N.info.codec="pcm-f32be"),this.readContiguousBoxes(e.slice(e.filePos,G+q.totalSize-e.filePos))}}break;case"avcC":var er=this.currentTrack;if(!er)break;(0,y.assert)(er.info),er.info.codecDescription=(0,S.readBytes)(e,r.contentSize);break;case"hvcC":var en=this.currentTrack;if(!en)break;(0,y.assert)(en.info),en.info.codecDescription=(0,S.readBytes)(e,r.contentSize);break;case"vpcC":var ea,ei=this.currentTrack;if(!ei)break;(0,y.assert)((null==(ea=ei.info)?void 0:ea.type)==="video"),e.skip(4);var es=(0,S.readU8)(e),eo=(0,S.readU8)(e),ec=(0,S.readU8)(e),eu=(0,S.readU8)(e),el=(0,S.readU8)(e),ed=(0,S.readU8)(e);ei.info.vp9CodecInfo={profile:es,level:eo,bitDepth:ec>>4,chromaSubsampling:ec>>1&7,videoFullRangeFlag:1&ec,colourPrimaries:eu,transferCharacteristics:el,matrixCoefficients:ed};break;case"av1C":var ef,eh=this.currentTrack;if(!eh)break;(0,y.assert)((null==(ef=eh.info)?void 0:ef.type)==="video"),e.skip(1);var ep=(0,S.readU8)(e),em=ep>>5,eg=(0,S.readU8)(e),ev=eg>>6&1;eh.info.av1CodecInfo={profile:em,level:31&ep,tier:eg>>7,bitDepth:2===em&&ev?eg>>5&1?12:10:ev?10:8,monochrome:eg>>4&1,chromaSubsamplingX:eg>>3&1,chromaSubsamplingY:eg>>2&1,chromaSamplePosition:3&eg};break;case"colr":var ey,ek=this.currentTrack;if(!ek||((0,y.assert)((null==(ey=ek.info)?void 0:ey.type)==="video"),"nclx"!==(0,S.readAscii)(e,4)))break;var eb=(0,S.readU16Be)(e),e_=(0,S.readU16Be)(e),eS=(0,S.readU16Be)(e),ew=!!(128&(0,S.readU8)(e));ek.info.colorSpace={primaries:y.COLOR_PRIMARIES_MAP_INVERSE[eb],transfer:y.TRANSFER_CHARACTERISTICS_MAP_INVERSE[e_],matrix:y.MATRIX_COEFFICIENTS_MAP_INVERSE[eS],fullRange:ew};break;case"esds":var eT,eI=this.currentTrack;if(!eI)break;(0,y.assert)((null==(eT=eI.info)?void 0:eT.type)==="audio"),e.skip(4);var ex=(0,S.readU8)(e);(0,y.assert)(3===ex),(0,_.readIsomVariableInteger)(e),e.skip(2);var eE=(0,S.readU8)(e);if((128&eE)!=0&&e.skip(2),(64&eE)!=0){var eP=(0,S.readU8)(e);e.skip(eP)}(32&eE)!=0&&e.skip(2);var ej=(0,S.readU8)(e);(0,y.assert)(4===ej);var eC=(0,_.readIsomVariableInteger)(e),eA=e.filePos,eB=(0,S.readU8)(e);if(64===eB||103===eB?(eI.info.codec="aac",eI.info.aacCodecInfo={isMpeg2:103===eB,objectType:null}):105===eB||107===eB?eI.info.codec="mp3":221===eB?eI.info.codec="vorbis":console.warn("Unsupported audio codec (objectTypeIndication ".concat(eB,") - discarding track.")),e.skip(12),eC>e.filePos-eA){var eM=(0,S.readU8)(e);(0,y.assert)(5===eM);var eD=(0,_.readIsomVariableInteger)(e);if(eI.info.codecDescription=(0,S.readBytes)(e,eD),"aac"===eI.info.codec){var eR=(0,p.parseAacAudioSpecificConfig)(eI.info.codecDescription);null!==eR.numberOfChannels&&(eI.info.numberOfChannels=eR.numberOfChannels),null!==eR.sampleRate&&(eI.info.sampleRate=eR.sampleRate)}}break;case"enda":var eF,eU=this.currentTrack;if(!eU)break;(0,y.assert)((null==(eF=eU.info)?void 0:eF.type)==="audio"),255&(0,S.readU16Be)(e)&&("pcm-s16be"===eU.info.codec?eU.info.codec="pcm-s16":"pcm-s24be"===eU.info.codec?eU.info.codec="pcm-s24":"pcm-s32be"===eU.info.codec?eU.info.codec="pcm-s32":"pcm-f32be"===eU.info.codec?eU.info.codec="pcm-f32":"pcm-f64be"===eU.info.codec&&(eU.info.codec="pcm-f64"));break;case"pcmC":var eO,eL=this.currentTrack;if(!eL)break;(0,y.assert)((null==(eO=eL.info)?void 0:eO.type)==="audio"),e.skip(4);var eN=!!(1&(0,S.readU8)(e)),ez=(0,S.readU8)(e);"pcm-s16be"===eL.info.codec?eN?16===ez?eL.info.codec="pcm-s16":24===ez?eL.info.codec="pcm-s24":32===ez?eL.info.codec="pcm-s32":(console.warn("Invalid ipcm sample size ".concat(ez,".")),eL.info.codec=null):16===ez?eL.info.codec="pcm-s16be":24===ez?eL.info.codec="pcm-s24be":32===ez?eL.info.codec="pcm-s32be":(console.warn("Invalid ipcm sample size ".concat(ez,".")),eL.info.codec=null):"pcm-f32be"===eL.info.codec&&(eN?32===ez?eL.info.codec="pcm-f32":64===ez?eL.info.codec="pcm-f64":(console.warn("Invalid fpcm sample size ".concat(ez,".")),eL.info.codec=null):32===ez?eL.info.codec="pcm-f32be":64===ez?eL.info.codec="pcm-f64be":(console.warn("Invalid fpcm sample size ".concat(ez,".")),eL.info.codec=null));break;case"dOps":var eV,eH,eG=this.currentTrack;if(!eG)break;(0,y.assert)((null==(eV=eG.info)?void 0:eV.type)==="audio"),e.skip(1);var eq=(0,S.readU8)(e),eW=(0,S.readU16Be)(e),eK=(0,S.readU32Be)(e),eX=(0,S.readI16Be)(e),eZ=(0,S.readU8)(e);eH=0!==eZ?(0,S.readBytes)(e,2+eq):new Uint8Array(0);var eQ=new Uint8Array(19+eH.byteLength),eY=new DataView(eQ.buffer);eY.setUint32(0,0x4f707573,!1),eY.setUint32(4,0x48656164,!1),eY.setUint8(8,1),eY.setUint8(9,eq),eY.setUint16(10,eW,!0),eY.setUint32(12,eK,!0),eY.setInt16(16,eX,!0),eY.setUint8(18,eZ),eQ.set(eH,19),eG.info.codecDescription=eQ,eG.info.numberOfChannels=eq;break;case"dfLa":var eJ,e$=this.currentTrack;if(!e$)break;(0,y.assert)((null==(eJ=e$.info)?void 0:eJ.type)==="audio"),e.skip(4);for(var e0=e.filePos;e.filePos<a;){var e1=(0,S.readU8)(e),e2=(0,S.readU24Be)(e);if((127&e1)===m.FlacBlockType.STREAMINFO){e.skip(10);var e3=(0,S.readU32Be)(e),e4=e3>>>12,e8=(e3>>9&7)+1;e$.info.sampleRate=e4,e$.info.numberOfChannels=e8,e.skip(20)}else e.skip(e2);if(128&e1)break}var e6=e.filePos;e.filePos=e0;var e5=(0,S.readBytes)(e,e6-e0),e7=new Uint8Array(4+e5.byteLength);new DataView(e7.buffer).setUint32(0,0x664c6143,!1),e7.set(e5,4),e$.info.codecDescription=e7;break;case"stts":var e9=this.currentTrack;if(!e9||!e9.sampleTable)break;e.skip(4);for(var te=(0,S.readU32Be)(e),tt=0,tr=0,tn=0;tn<te;tn++){var ta=(0,S.readU32Be)(e),ti=(0,S.readU32Be)(e);e9.sampleTable.sampleTimingEntries.push({startIndex:tt,startDecodeTimestamp:tr,count:ta,delta:ti}),tt+=ta,tr+=ta*ti}break;case"ctts":var ts=this.currentTrack;if(!ts||!ts.sampleTable)break;e.skip(4);for(var to=(0,S.readU32Be)(e),tc=0,tu=0;tu<to;tu++){var tl=(0,S.readU32Be)(e),td=(0,S.readI32Be)(e);ts.sampleTable.sampleCompositionTimeOffsets.push({startIndex:tc,count:tl,offset:td}),tc+=tl}break;case"stsz":var tf=this.currentTrack;if(!tf||!tf.sampleTable)break;e.skip(4);var th=(0,S.readU32Be)(e),tp=(0,S.readU32Be)(e);if(0===th)for(var tm=0;tm<tp;tm++){var tg=(0,S.readU32Be)(e);tf.sampleTable.sampleSizes.push(tg)}else tf.sampleTable.sampleSizes.push(th);break;case"stz2":var tv=this.currentTrack;if(!tv||!tv.sampleTable)break;e.skip(4),e.skip(3);for(var ty=(0,S.readU8)(e),tk=(0,S.readU32Be)(e),tb=(0,S.readBytes)(e,Math.ceil(tk*ty/8)),t_=new(0,y.Bitstream)(tb),tS=0;tS<tk;tS++){var tw=t_.readBits(ty);tv.sampleTable.sampleSizes.push(tw)}break;case"stss":var tT=this.currentTrack;if(!tT||!tT.sampleTable)break;e.skip(4),tT.sampleTable.keySampleIndices=[];for(var tI=(0,S.readU32Be)(e),tx=0;tx<tI;tx++){var tE=(0,S.readU32Be)(e)-1;tT.sampleTable.keySampleIndices.push(tE)}0!==tT.sampleTable.keySampleIndices[0]&&tT.sampleTable.keySampleIndices.unshift(0);break;case"stsc":var tP=this.currentTrack;if(!tP||!tP.sampleTable)break;e.skip(4);for(var tj=(0,S.readU32Be)(e),tC=0;tC<tj;tC++){var tA=(0,S.readU32Be)(e)-1,tB=(0,S.readU32Be)(e),tM=(0,S.readU32Be)(e);tP.sampleTable.sampleToChunk.push({startSampleIndex:-1,startChunkIndex:tA,samplesPerChunk:tB,sampleDescriptionIndex:tM})}for(var tD=0,tR=0;tR<tP.sampleTable.sampleToChunk.length;tR++)tP.sampleTable.sampleToChunk[tR].startSampleIndex=tD,tR<tP.sampleTable.sampleToChunk.length-1&&(tD+=(tP.sampleTable.sampleToChunk[tR+1].startChunkIndex-tP.sampleTable.sampleToChunk[tR].startChunkIndex)*tP.sampleTable.sampleToChunk[tR].samplesPerChunk);break;case"stco":var tF=this.currentTrack;if(!tF||!tF.sampleTable)break;e.skip(4);for(var tU=(0,S.readU32Be)(e),tO=0;tO<tU;tO++){var tL=(0,S.readU32Be)(e);tF.sampleTable.chunkOffsets.push(tL)}break;case"co64":var tN=this.currentTrack;if(!tN||!tN.sampleTable)break;e.skip(4);for(var tz=(0,S.readU32Be)(e),tV=0;tV<tz;tV++){var tH=(0,S.readU64Be)(e);tN.sampleTable.chunkOffsets.push(tH)}break;case"mvex":this.isFragmented=!0,this.readContiguousBoxes(e.slice(n,r.contentSize));break;case"mehd":var tG=(0,S.readU8)(e);e.skip(3);var tq=1===tG?(0,S.readU64Be)(e):(0,S.readU32Be)(e);this.movieDurationInTimescale=tq;break;case"trex":e.skip(4);var tW=(0,S.readU32Be)(e),tK=(0,S.readU32Be)(e),tX=(0,S.readU32Be)(e),tZ=(0,S.readU32Be)(e),tQ=(0,S.readU32Be)(e);this.fragmentTrackDefaults.push({trackId:tW,defaultSampleDescriptionIndex:tK,defaultSampleDuration:tX,defaultSampleSize:tZ,defaultSampleFlags:tQ});break;case"tfra":var tY=(0,S.readU8)(e);e.skip(3);var tJ=(0,S.readU32Be)(e),t$=this.tracks.find(function(e){return e.id===tJ});if(!t$)break;for(var t0=(0,S.readU32Be)(e),t1=[S.readU8,S.readU16Be,S.readU24Be,S.readU32Be],t2=t1[(48&t0)>>4],t3=t1[(12&t0)>>2],t4=t1[3&t0],t8=(0,S.readU32Be)(e),t6=0;t6<t8;t6++){var t5=1===tY?(0,S.readU64Be)(e):(0,S.readU32Be)(e),t7=1===tY?(0,S.readU64Be)(e):(0,S.readU32Be)(e);t2(e),t3(e),t4(e),t$.fragmentLookupTable.push({timestamp:t5,moofOffset:t7})}t$.fragmentLookupTable.sort(function(e,t){return e.timestamp-t.timestamp});for(var t9=0;t9<t$.fragmentLookupTable.length-1;t9++){var re=t$.fragmentLookupTable[t9],rt=t$.fragmentLookupTable[t9+1];re.timestamp===rt.timestamp&&(t$.fragmentLookupTable.splice(t9+1,1),t9--)}break;case"moof":this.currentFragment={moofOffset:t,moofSize:r.totalSize,implicitBaseDataOffset:t,trackData:new Map},this.readContiguousBoxes(e.slice(n,r.contentSize)),this.lastReadFragment=this.currentFragment,this.currentFragment=null;break;case"traf":if((0,y.assert)(this.currentFragment),this.readContiguousBoxes(e.slice(n,r.contentSize)),this.currentTrack){var rr=this.currentFragment.trackData.get(this.currentTrack.id);if(rr){var rn=this.currentTrack.currentFragmentState;(0,y.assert)(rn),null!==rn.startTimestamp&&(B(rr,rn.startTimestamp),rr.startTimestampIsFinal=!0)}this.currentTrack.currentFragmentState=null,this.currentTrack=null}break;case"tfhd":(0,y.assert)(this.currentFragment),e.skip(1);var ra,ri,rs,ro,rc=(0,S.readU24Be)(e),ru=(0,S.readU32Be)(e),rl=this.tracks.find(function(e){return e.id===ru});if(!rl)break;var rd=this.fragmentTrackDefaults.find(function(e){return e.trackId===ru});this.currentTrack=rl,rl.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:null!=(ra=null==rd?void 0:rd.defaultSampleDescriptionIndex)?ra:null,defaultSampleDuration:null!=(ri=null==rd?void 0:rd.defaultSampleDuration)?ri:null,defaultSampleSize:null!=(rs=null==rd?void 0:rd.defaultSampleSize)?rs:null,defaultSampleFlags:null!=(ro=null==rd?void 0:rd.defaultSampleFlags)?ro:null,startTimestamp:null},1&rc?rl.currentFragmentState.baseDataOffset=(0,S.readU64Be)(e):131072&rc&&(rl.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),2&rc&&(rl.currentFragmentState.sampleDescriptionIndex=(0,S.readU32Be)(e)),8&rc&&(rl.currentFragmentState.defaultSampleDuration=(0,S.readU32Be)(e)),16&rc&&(rl.currentFragmentState.defaultSampleSize=(0,S.readU32Be)(e)),32&rc&&(rl.currentFragmentState.defaultSampleFlags=(0,S.readU32Be)(e)),65536&rc&&(rl.currentFragmentState.defaultSampleDuration=0);break;case"tfdt":var rf=this.currentTrack;if(!rf)break;(0,y.assert)(rf.currentFragmentState);var rh=(0,S.readU8)(e);e.skip(3);var rp=0===rh?(0,S.readU32Be)(e):(0,S.readU64Be)(e);rf.currentFragmentState.startTimestamp=rp;break;case"trun":var rm=this.currentTrack;if(!rm)break;if((0,y.assert)(this.currentFragment),(0,y.assert)(rm.currentFragmentState),this.currentFragment.trackData.has(rm.id)){console.warn("Can't have two trun boxes for the same track in one fragment. Ignoring...");break}var rg=(0,S.readU8)(e),rv=(0,S.readU24Be)(e),ry=!!(256&rv),rk=!!(512&rv),rb=!!(1024&rv),r_=!!(2048&rv),rS=(0,S.readU32Be)(e),rw=rm.currentFragmentState.baseDataOffset;1&rv&&(rw+=(0,S.readI32Be)(e));var rT=null;4&rv&&(rT=(0,S.readU32Be)(e));var rI=rw;if(0===rS){this.currentFragment.implicitBaseDataOffset=rI;break}var rx=0,rE={track:rm,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1};this.currentFragment.trackData.set(rm.id,rE);for(var rP=0;rP<rS;rP++){var rj=void 0;ry?rj=(0,S.readU32Be)(e):((0,y.assert)(null!==rm.currentFragmentState.defaultSampleDuration),rj=rm.currentFragmentState.defaultSampleDuration);var rC=void 0;rk?rC=(0,S.readU32Be)(e):((0,y.assert)(null!==rm.currentFragmentState.defaultSampleSize),rC=rm.currentFragmentState.defaultSampleSize);var rA=void 0;rb?rA=(0,S.readU32Be)(e):((0,y.assert)(null!==rm.currentFragmentState.defaultSampleFlags),rA=rm.currentFragmentState.defaultSampleFlags),0===rP&&null!==rT&&(rA=rT);var rB=0;r_&&(rB=0===rg?(0,S.readU32Be)(e):(0,S.readI32Be)(e));var rM=!(65536&rA);rE.samples.push({presentationTimestamp:rx+rB,duration:rj,byteOffset:rI,byteSize:rC,isKeyFrame:rM}),rI+=rC,rx+=rj}rE.presentationTimestamps=rE.samples.map(function(e,t){return{presentationTimestamp:e.presentationTimestamp,sampleIndex:t}}).sort(function(e,t){return e.presentationTimestamp-t.presentationTimestamp});for(var rD=0;rD<rE.presentationTimestamps.length;rD++){var rR=rE.presentationTimestamps[rD],rF=rE.samples[rR.sampleIndex];null===rE.firstKeyFrameTimestamp&&rF.isKeyFrame&&(rE.firstKeyFrameTimestamp=rF.presentationTimestamp),rD<rE.presentationTimestamps.length-1&&(rF.duration=rE.presentationTimestamps[rD+1].presentationTimestamp-rR.presentationTimestamp)}var rU=rE.samples[rE.presentationTimestamps[0].sampleIndex],rO=rE.samples[(0,y.last)(rE.presentationTimestamps).sampleIndex];rE.startTimestamp=rU.presentationTimestamp,rE.endTimestamp=rO.presentationTimestamp+rO.duration,this.currentFragment.implicitBaseDataOffset=rI;break;case"udta":var rL=this.iterateContiguousBoxes(e.slice(n,r.contentSize)),rN=!0,rz=!1,rV=void 0;try{for(var rH,rG=rL[Symbol.iterator]();!(rN=(rH=rG.next()).done);rN=!0){var rq,rW,rK=rH.value,rX=rK.boxInfo,rZ=rK.slice;if("meta"!==rX.name&&!this.currentTrack){var rQ,rY,rJ,r$,r0,r1=rZ.filePos;null!=(rQ=this.metadataTags).raw||(rQ.raw={}),"©"===rX.name[0]?null!=(rY=this.metadataTags.raw)[rJ=rX.name]||(rY[rJ]=(0,_.readMetadataStringShort)(rZ)):null!=(r$=this.metadataTags.raw)[r0=rX.name]||(r$[r0]=(0,S.readBytes)(rZ,rX.contentSize)),rZ.filePos=r1}switch(rX.name){case"meta":rZ.skip(-rX.headerSize),this.traverseBox(rZ);break;case"©nam":case"name":this.currentTrack?this.currentTrack.name=y.textDecoder.decode((0,S.readBytes)(rZ,rX.contentSize)):null!=(r2=this.metadataTags).title||(r2.title=(0,_.readMetadataStringShort)(rZ));break;case"©des":this.currentTrack||null!=(r3=this.metadataTags).description||(r3.description=(0,_.readMetadataStringShort)(rZ));break;case"©ART":this.currentTrack||null!=(r4=this.metadataTags).artist||(r4.artist=(0,_.readMetadataStringShort)(rZ));break;case"©alb":this.currentTrack||null!=(r8=this.metadataTags).album||(r8.album=(0,_.readMetadataStringShort)(rZ));break;case"albr":this.currentTrack||null!=(r6=this.metadataTags).albumArtist||(r6.albumArtist=(0,_.readMetadataStringShort)(rZ));break;case"©gen":this.currentTrack||null!=(r5=this.metadataTags).genre||(r5.genre=(0,_.readMetadataStringShort)(rZ));break;case"©day":if(!this.currentTrack){var r2,r3,r4,r8,r6,r5,r7,r9=new Date((0,_.readMetadataStringShort)(rZ));Number.isNaN(r9.getTime())||null!=(r7=this.metadataTags).date||(r7.date=r9)}break;case"©cmt":this.currentTrack||null!=(rq=this.metadataTags).comment||(rq.comment=(0,_.readMetadataStringShort)(rZ));break;case"©lyr":this.currentTrack||null!=(rW=this.metadataTags).lyrics||(rW.lyrics=(0,_.readMetadataStringShort)(rZ))}}}catch(e){rz=!0,rV=e}finally{try{rN||null==rG.return||rG.return()}finally{if(rz)throw rV}}break;case"meta":if(this.currentTrack)break;var ne=(0,S.readU32Be)(e);this.currentMetadataKeys=new Map,0!==ne?this.readContiguousBoxes(e.slice(n,r.contentSize)):this.readContiguousBoxes(e.slice(n+4,r.contentSize-4)),this.currentMetadataKeys=null;break;case"keys":if(!this.currentMetadataKeys)break;e.skip(4);for(var nt=(0,S.readU32Be)(e),nr=0;nr<nt;nr++){var nn=(0,S.readU32Be)(e);e.skip(4);var na=y.textDecoder.decode((0,S.readBytes)(e,nn-8));this.currentMetadataKeys.set(nr+1,na)}break;case"ilst":if(!this.currentMetadataKeys)break;var ni=this.iterateContiguousBoxes(e.slice(n,r.contentSize)),ns=!0,no=!1,nc=void 0;try{for(var nu,nl=ni[Symbol.iterator]();!(ns=(nu=nl.next()).done);ns=!0){var nd=nu.value,nf=nd.boxInfo,nh=nd.slice,np=nf.name,nm=(np.charCodeAt(0)<<24)+(np.charCodeAt(1)<<16)+(np.charCodeAt(2)<<8)+np.charCodeAt(3);this.currentMetadataKeys.has(nm)&&(np=this.currentMetadataKeys.get(nm));var ng=(0,_.readDataBox)(nh);switch(null!=(nv=this.metadataTags).raw||(nv.raw={}),null!=(ny=this.metadataTags.raw)[nk=np]||(ny[nk]=ng),np){case"©nam":case"titl":case"com.apple.quicktime.title":case"title":"string"==typeof ng&&(null!=(nb=this.metadataTags).title||(nb.title=ng));break;case"©des":case"desc":case"dscp":case"com.apple.quicktime.description":case"description":"string"==typeof ng&&(null!=(n_=this.metadataTags).description||(n_.description=ng));break;case"©ART":case"com.apple.quicktime.artist":case"artist":"string"==typeof ng&&(null!=(nS=this.metadataTags).artist||(nS.artist=ng));break;case"©alb":case"albm":case"com.apple.quicktime.album":case"album":"string"==typeof ng&&(null!=(nw=this.metadataTags).album||(nw.album=ng));break;case"aART":case"album_artist":"string"==typeof ng&&(null!=(nT=this.metadataTags).albumArtist||(nT.albumArtist=ng));break;case"©cmt":case"com.apple.quicktime.comment":case"comment":"string"==typeof ng&&(null!=(nI=this.metadataTags).comment||(nI.comment=ng));break;case"©gen":case"gnre":case"com.apple.quicktime.genre":case"genre":"string"==typeof ng&&(null!=(nx=this.metadataTags).genre||(nx.genre=ng));break;case"©lyr":case"lyrics":"string"==typeof ng&&(null!=(nE=this.metadataTags).lyrics||(nE.lyrics=ng));break;case"©day":case"rldt":case"com.apple.quicktime.creationdate":case"date":if("string"==typeof ng){var nv,ny,nk,nb,n_,nS,nw,nT,nI,nx,nE,nP,nj=new Date(ng);Number.isNaN(nj.getTime())||null!=(nP=this.metadataTags).date||(nP.date=nj)}break;case"covr":case"com.apple.quicktime.artwork":ng instanceof w.RichImageData?(null!=(nC=this.metadataTags).images||(nC.images=[]),this.metadataTags.images.push({data:ng.data,kind:"coverFront",mimeType:ng.mimeType})):ng instanceof Uint8Array&&(null!=(nA=this.metadataTags).images||(nA.images=[]),this.metadataTags.images.push({data:ng,kind:"coverFront",mimeType:"image/*"}));break;case"track":if("string"==typeof ng){var nC,nA,nB,nM,nD=ng.split("/"),nR=Number.parseInt(nD[0],10),nF=nD[1]&&Number.parseInt(nD[1],10);Number.isInteger(nR)&&nR>0&&(null!=(nB=this.metadataTags).trackNumber||(nB.trackNumber=nR)),nF&&Number.isInteger(nF)&&nF>0&&(null!=(nM=this.metadataTags).tracksTotal||(nM.tracksTotal=nF))}break;case"trkn":if(ng instanceof Uint8Array&&ng.length>=6){var nU,nO,nL=(0,y.toDataView)(ng),nN=nL.getUint16(2,!1),nz=nL.getUint16(4,!1);nN>0&&(null!=(nU=this.metadataTags).trackNumber||(nU.trackNumber=nN)),nz>0&&(null!=(nO=this.metadataTags).tracksTotal||(nO.tracksTotal=nz))}break;case"disc":case"disk":if(ng instanceof Uint8Array&&ng.length>=6){var nV,nH,nG=(0,y.toDataView)(ng),nq=nG.getUint16(2,!1),nW=nG.getUint16(4,!1);nq>0&&(null!=(nV=this.metadataTags).discNumber||(nV.discNumber=nq)),nW>0&&(null!=(nH=this.metadataTags).discsTotal||(nH.discsTotal=nW))}}}}catch(e){no=!0,nc=e}finally{try{ns||null==nl.return||nl.return()}finally{if(no)throw nc}}}return e.filePos=a,!0}}]),t}(g.Demuxer),I=function(){"use strict";function e(t){(0,o._)(this,e),this.internalTrack=t,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}return(0,c._)(e,[{key:"getId",value:function(){return this.internalTrack.id}},{key:"getNumber",value:function(){var e=this.internalTrack.demuxer,t=this.internalTrack.inputTrack.type,r=0,n=!0,a=!1,i=void 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f=u.value,h=e.subarray(f.offset,f.offset+f.length),g=C(h[0]);g===c.VPS_NUT?t.push(h):g===c.SPS_NUT?r.push(h):g===c.PPS_NUT?n.push(h):(g===c.PREFIX_SEI_NUT||g===c.SUFFIX_SEI_NUT)&&a.push(h)}}catch(e){s=!0,o=e}finally{try{i||null==l.return||l.return()}finally{if(s)throw o}}if(0===r.length||0===n.length)return null;var v=A(r[0]);if(!v)return null;var y=0;if(n.length>0){var b=n[0],_=new(0,p.Bitstream)(k(b));_.skipBits(16),(0,p.readExpGolomb)(_),(0,p.readExpGolomb)(_),_.skipBits(1),_.skipBits(1),_.skipBits(3),_.skipBits(1),_.skipBits(1),(0,p.readExpGolomb)(_),(0,p.readExpGolomb)(_),(0,p.readSignedExpGolomb)(_),_.skipBits(1),_.skipBits(1),_.readBits(1)&&(0,p.readExpGolomb)(_),(0,p.readSignedExpGolomb)(_),(0,p.readSignedExpGolomb)(_),_.skipBits(1),_.skipBits(1),_.skipBits(1),_.skipBits(1);var S=_.readBits(1),w=_.readBits(1);y=S||w?S&&!w?2:!S&&w?3:0:0}var T=(0,d._)(t.length?[{arrayCompleteness:1,nalUnitType:c.VPS_NUT,nalUnits:t}]:[]).concat((0,d._)(r.length?[{arrayCompleteness:1,nalUnitType:c.SPS_NUT,nalUnits:r}]:[]),(0,d._)(n.length?[{arrayCompleteness:1,nalUnitType:c.PPS_NUT,nalUnits:n}]:[]),(0,d._)(a.length?[{arrayCompleteness:1,nalUnitType:C(a[0][0]),nalUnits:a}]:[]));return{configurationVersion:1,generalProfileSpace:v.generalProfileSpace,generalTierFlag:v.generalTierFlag,generalProfileIdc:v.generalProfileIdc,generalProfileCompatibilityFlags:v.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:v.generalConstraintIndicatorFlags,generalLevelIdc:v.generalLevelIdc,minSpatialSegmentationIdc:v.minSpatialSegmentationIdc,parallelismType:y,chromaFormatIdc:v.chromaFormatIdc,bitDepthLumaMinus8:v.bitDepthLumaMinus8,bitDepthChromaMinus8:v.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:v.spsMaxSubLayersMinus1+1,temporalIdNested:v.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:T}}catch(e){return console.error("Error building HEVC Decoder Configuration Record:",e),null}},M=function(e,t){for(var r=e.readBits(2),n=e.readBits(1),a=e.readBits(5),i=0,s=0;s<32;s++)i=i<<1|e.readBits(1);for(var o=new Uint8Array(6),c=0;c<6;c++)o[c]=e.readBits(8);for(var u=e.readBits(8),l=[],d=[],f=0;f<t;f++)l.push(e.readBits(1)),d.push(e.readBits(1));if(t>0)for(var h=t;h<8;h++)e.skipBits(2);for(var p=0;p<t;p++)l[p]&&e.skipBits(88),d[p]&&e.skipBits(8);return{general_profile_space:r,general_tier_flag:n,general_profile_idc:a,general_profile_compatibility_flags:i,general_constraint_indicator_flags:o,general_level_idc:u}},D=function(e){for(var t=0;t<4;t++)for(var r=0;r<(3===t?2:6);r++)if(e.readBits(1)){var n=Math.min(64,1<<4+(t<<1));t>1&&(0,p.readSignedExpGolomb)(e);for(var a=0;a<n;a++)(0,p.readSignedExpGolomb)(e)}else(0,p.readExpGolomb)(e)},R=function(e,t){for(var r=[],n=0;n<t;n++)r[n]=F(e,n,t,r)},F=function(e,t,r,n){var a,i=0,s=0,o=0;if(0!==t&&(s=e.readBits(1)),s){o=t===r?t-((0,p.readExpGolomb)(e)+1):t-1,e.readBits(1),(0,p.readExpGolomb)(e);for(var c=null!=(a=n[o])?a:0,u=0;u<=c;u++)e.readBits(1)||e.readBits(1);i=n[o]}else{for(var l=(0,p.readExpGolomb)(e),d=(0,p.readExpGolomb)(e),f=0;f<l;f++)(0,p.readExpGolomb)(e),e.readBits(1);for(var h=0;h<d;h++)(0,p.readExpGolomb)(e),e.readBits(1);i=l+d}return i},U=function(e,t){var r=2,n=2,a=2,i=0,s=0;return e.readBits(1)&&255===e.readBits(8)&&(e.readBits(16),e.readBits(16)),e.readBits(1)&&e.readBits(1),e.readBits(1)&&(e.readBits(3),i=e.readBits(1),e.readBits(1)&&(r=e.readBits(8),n=e.readBits(8),a=e.readBits(8))),e.readBits(1)&&((0,p.readExpGolomb)(e),(0,p.readExpGolomb)(e)),e.readBits(1),e.readBits(1),e.readBits(1),e.readBits(1)&&((0,p.readExpGolomb)(e),(0,p.readExpGolomb)(e),(0,p.readExpGolomb)(e),(0,p.readExpGolomb)(e)),e.readBits(1)&&(e.readBits(32),e.readBits(32),e.readBits(1)&&(0,p.readExpGolomb)(e),e.readBits(1)&&O(e,!0,t)),e.readBits(1)&&(e.readBits(1),e.readBits(1),e.readBits(1),s=(0,p.readExpGolomb)(e),(0,p.readExpGolomb)(e),(0,p.readExpGolomb)(e),(0,p.readExpGolomb)(e),(0,p.readExpGolomb)(e)),{colourPrimaries:r,transferCharacteristics:n,matrixCoefficients:a,fullRangeFlag:i,minSpatialSegmentationIdc:s}},O=function(e,t,r){var n=!1,a=!1,i=!1;t&&(n=1===e.readBits(1),a=1===e.readBits(1),(n||a)&&((i=1===e.readBits(1))&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),i&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5)));for(var s=0;s<=r;s++){var o=1===e.readBits(1),c=!0;o||(c=1===e.readBits(1));var u=!1;c?(0,p.readExpGolomb)(e):u=1===e.readBits(1);var l=1;u||(l=(0,p.readExpGolomb)(e)+1),n&&L(e,l,i),a&&L(e,l,i)}},L=function(e,t,r){for(var n=0;n<t;n++)(0,p.readExpGolomb)(e),(0,p.readExpGolomb)(e),r&&((0,p.readExpGolomb)(e),(0,p.readExpGolomb)(e)),e.readBits(1)},N=function(e){var t=[];t.push(e.configurationVersion),t.push((3&e.generalProfileSpace)<<6|(1&e.generalTierFlag)<<5|31&e.generalProfileIdc),t.push(e.generalProfileCompatibilityFlags>>>24&255),t.push(e.generalProfileCompatibilityFlags>>>16&255),t.push(e.generalProfileCompatibilityFlags>>>8&255),t.push(255&e.generalProfileCompatibilityFlags),t.push.apply(t,(0,d._)(e.generalConstraintIndicatorFlags)),t.push(255&e.generalLevelIdc),t.push(240|e.minSpatialSegmentationIdc>>8&15),t.push(255&e.minSpatialSegmentationIdc),t.push(252|3&e.parallelismType),t.push(252|3&e.chromaFormatIdc),t.push(248|7&e.bitDepthLumaMinus8),t.push(248|7&e.bitDepthChromaMinus8),t.push(e.avgFrameRate>>8&255),t.push(255&e.avgFrameRate),t.push((3&e.constantFrameRate)<<6|(7&e.numTemporalLayers)<<3|(1&e.temporalIdNested)<<2|3&e.lengthSizeMinusOne),t.push(255&e.arrays.length);var r=!0,n=!1,a=void 0;try{for(var i,s=e.arrays[Symbol.iterator]();!(r=(i=s.next()).done);r=!0){var o=i.value;t.push((1&o.arrayCompleteness)<<7|63&o.nalUnitType),t.push(o.nalUnits.length>>8&255),t.push(255&o.nalUnits.length);var c=!0,u=!1,l=void 0;try{for(var f,h=o.nalUnits[Symbol.iterator]();!(c=(f=h.next()).done);c=!0){var p=f.value;t.push(p.length>>8&255),t.push(255&p.length);for(var m=0;m<p.length;m++)t.push(p[m])}}catch(e){u=!0,l=e}finally{try{c||null==h.return||h.return()}finally{if(u)throw l}}}}catch(e){n=!0,a=e}finally{try{r||null==s.return||s.return()}finally{if(n)throw a}}return new Uint8Array(t)},z=function(e){try{var t=(0,p.toDataView)(e),r=0,n=t.getUint8(r++),a=t.getUint8(r++),i=t.getUint32(r,!1);r+=4;var s=e.subarray(r,r+6);r+=6;var o=t.getUint8(r++),c=(15&t.getUint8(r++))<<8|t.getUint8(r++),u=3&t.getUint8(r++),l=3&t.getUint8(r++),d=7&t.getUint8(r++),f=7&t.getUint8(r++),h=t.getUint16(r,!1);r+=2;for(var m=t.getUint8(r++),g=t.getUint8(r++),v=[],y=0;y<g;y++){var k=t.getUint8(r++),b=k>>7&1,_=63&k,S=t.getUint16(r,!1);r+=2;for(var w=[],T=0;T<S;T++){var I=t.getUint16(r,!1);r+=2,w.push(e.subarray(r,r+I)),r+=I}v.push({arrayCompleteness:b,nalUnitType:_,nalUnits:w})}return{configurationVersion:n,generalProfileSpace:a>>6&3,generalTierFlag:a>>5&1,generalProfileIdc:31&a,generalProfileCompatibilityFlags:i,generalConstraintIndicatorFlags:s,generalLevelIdc:o,minSpatialSegmentationIdc:c,parallelismType:u,chromaFormatIdc:l,bitDepthLumaMinus8:d,bitDepthChromaMinus8:f,avgFrameRate:h,constantFrameRate:m>>6&3,numTemporalLayers:m>>3&7,temporalIdNested:m>>2&1,lengthSizeMinusOne:3&m,arrays:v}}catch(e){return console.error("Error deserializing HEVC Decoder Configuration Record:",e),null}},V=function(e){var t=new(0,p.Bitstream)(e);if(2!==t.readBits(2))return null;var r=t.readBits(1),n=(t.readBits(1)<<1)+r;if(3===n&&t.skipBits(1),1===t.readBits(1)||0!==t.readBits(1)||(t.skipBits(2),4817730!==t.readBits(24)))return null;var a=8;n>=2&&(a=t.readBits(1)?12:10);var i=t.readBits(3),s=0,o=0;if(7!==i)if(o=t.readBits(1),1===n||3===n){var c=t.readBits(1),u=t.readBits(1);s=c||u?c&&!u?2:1:3,t.skipBits(1)}else s=1;else s=3,o=1;var l=(t.readBits(16)+1)*(t.readBits(16)+1),d=(0,p.last)(h.VP9_LEVEL_TABLE).level,f=!0,m=!1,g=void 0;try{for(var v,y=h.VP9_LEVEL_TABLE[Symbol.iterator]();!(f=(v=y.next()).done);f=!0){var k=v.value;if(l<=k.maxPictureSize){d=k.level;break}}}catch(e){m=!0,g=e}finally{try{f||null==y.return||y.return()}finally{if(m)throw g}}return{profile:n,level:d,bitDepth:a,chromaSubsampling:s,videoFullRangeFlag:o,colourPrimaries:2===i?1:1===i?6:2,transferCharacteristics:2===i?1:1===i?6:2,matrixCoefficients:7===i?0:2===i?1:1===i?6:2}},H=function(e){var t,r,n,a,i,s,o;return(0,f._)(this,function(c){switch(c.label){case 0:t=new(0,p.Bitstream)(e),r=function(){for(var e=0,r=0;r<8;r++){var n=t.readAlignedByte();if(e|=(127&n)<<7*r,!(128&n))break;if(7===r&&128&n)return null}return e>=0xffffffff?null:e},c.label=1;case 1:if(!(t.getBitsLeft()>=8))return[3,3];if(t.skipBits(1),n=t.readBits(4),a=t.readBits(1),i=t.readBits(1),t.skipBits(1),a&&t.skipBits(8),s=void 0,i){if(null===(o=r()))return[2];s=o}else s=Math.floor(t.getBitsLeft()/8);return(0,p.assert)(t.pos%8==0),[4,{type:n,data:e.subarray(t.pos/8,t.pos/8+s)}];case 2:return c.sent(),t.skipBits(8*s),[3,1];case 3:return[2]}})},G=function(e){var t=!0,r=!1,n=void 0;try{for(var a,i=H(e)[Symbol.iterator]();!(t=(a=i.next()).done);t=!0){var s=a.value,o=s.type,c=s.data;if(1===o){var u=new(0,p.Bitstream)(c),l=u.readBits(3);u.readBits(1);var d=u.readBits(1),f=0,h=0,m=0;if(d)f=u.readBits(5);else{if(u.readBits(1)&&(u.skipBits(32),u.skipBits(32),u.readBits(1)))return null;var g=u.readBits(1);g&&(m=u.readBits(5),u.skipBits(32),u.skipBits(5),u.skipBits(5));for(var v=u.readBits(5),y=0;y<=v;y++){u.skipBits(12);var k=u.readBits(5);if(0===y&&(f=k),k>7){var b=u.readBits(1);0===y&&(h=b)}if(g&&u.readBits(1)){var _=m+1;u.skipBits(_),u.skipBits(_),u.skipBits(1)}u.readBits(1)&&u.skipBits(4)}}var S=u.readBits(4),w=u.readBits(4),T=S+1;u.skipBits(T);var I=w+1;u.skipBits(I);if((d?0:u.readBits(1))&&(u.skipBits(4),u.skipBits(3)),u.skipBits(1),u.skipBits(1),u.skipBits(1),!d){u.skipBits(1),u.skipBits(1),u.skipBits(1),u.skipBits(1);var x=u.readBits(1);x&&(u.skipBits(1),u.skipBits(1));var E=u.readBits(1);(E?2:u.readBits(1))>0&&(u.readBits(1)||u.skipBits(1)),x&&u.skipBits(3)}u.skipBits(1),u.skipBits(1),u.skipBits(1);var P=u.readBits(1),j=8;2===l&&P?j=u.readBits(1)?12:10:l<=2&&(j=P?10:8);var C=0;1!==l&&(C=u.readBits(1));var A=1,B=1,M=0;return!C&&(0===l?(A=1,B=1):1===l?(A=0,B=0):12===j&&(A=u.readBits(1))&&(B=u.readBits(1)),A&&B&&(M=u.readBits(2))),{profile:l,level:f,tier:h,bitDepth:j,monochrome:C,chromaSubsamplingX:A,chromaSubsamplingY:B,chromaSamplePosition:M}}}}catch(e){r=!0,n=e}finally{try{t||null==i.return||i.return()}finally{if(r)throw n}}return null},q=function(e){var t=(0,p.toDataView)(e),r=t.getUint8(9),n=t.getUint16(10,!0),a=t.getUint32(12,!0),i=t.getInt16(16,!0),s=t.getUint8(18),o=null;return s&&(o=e.subarray(19,21+r)),{outputChannelCount:r,preSkip:n,inputSampleRate:a,outputGain:i,channelMappingFamily:s,channelMappingTable:o}},W=[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],K=function(e){return{durationInSamples:W[e[0]>>3]}},X=function(e){if(e.length<7)throw Error("Setup header is too short.");if(5!==e[0])throw Error("Wrong packet type in Setup header.");if("vorbis"!==(t=String).fromCharCode.apply(t,(0,d._)(e.slice(1,7))))throw Error("Invalid packet signature in Setup header.");for(var t,r=e.length,n=new Uint8Array(r),a=0;a<r;a++)n[a]=e[r-1-a];for(var i=new(0,p.Bitstream)(n),s=0;i.getBitsLeft()>97;)if(1===i.readBits(1)){s=i.pos;break}if(0===s)throw Error("Invalid Setup header: framing bit not found.");for(var o=0,c=!1,u=0;i.getBitsLeft()>=97;){var l=i.pos,f=i.readBits(8),h=i.readBits(16),m=i.readBits(16);if(f>63||0!==h||0!==m){i.pos=l;break}if(i.skipBits(1),++o>64)break;i.clone().readBits(6)+1===o&&(c=!0,u=o)}if(!c)throw Error("Invalid Setup header: mode header not found.");if(u>63)throw Error("Unsupported mode count: ".concat(u,"."));var g=u;i.pos=0,i.skipBits(s);for(var v=Array(g).fill(0),y=g-1;y>=0;y--)i.skipBits(40),v[y]=i.readBits(1);return{modeBlockflags:v}},Z=function(e,t,r){switch(e){case"avc":var n=!0,a=!1,i=void 0;try{for(var s,u=v(r,t)[Symbol.iterator]();!(n=(s=u.next()).done);n=!0){var l=s.value,d=r[l.offset],f=y(d);if(f>=o.NON_IDR_SLICE&&f<=o.SLICE_DPC)return"delta";if(f===o.IDR)return"key";if(f===o.SEI&&(!(0,p.isChromium)()||(0,p.getChromiumVersion)()>=144)){var h=r.subarray(l.offset,l.offset+l.length),m=k(h),g=1;do{for(var b=0;;){var _=m[g++];if(void 0===_||(b+=_,_<255))break}for(var S=0;;){var w=m[g++];if(void 0===w||(S+=w,w<255))break}if(6===b){var T=new(0,p.Bitstream)(m);T.pos=8*g;var I=(0,p.readExpGolomb)(T),x=T.readBits(1);if(0===I&&1===x)return"key"}g+=S}while(g<m.length-1)}}}catch(e){a=!0,i=e}finally{try{n||null==u.return||u.return()}finally{if(a)throw i}}return"delta";case"hevc":var E=!0,P=!1,A=void 0;try{for(var B,M=j(r,t)[Symbol.iterator]();!(E=(B=M.next()).done);E=!0){var D=B.value,R=C(r[D.offset]);if(R<c.BLA_W_LP)return"delta";if(R<=c.RSV_IRAP_VCL23)return"key"}}catch(e){P=!0,A=e}finally{try{E||null==M.return||M.return()}finally{if(P)throw A}}return"delta";case"vp8":return 0==(1&r[0])?"key":"delta";case"vp9":var F=new(0,p.Bitstream)(r);if(2!==F.readBits(2))return null;var U=F.readBits(1);if(3===(F.readBits(1)<<1)+U&&F.skipBits(1),F.readBits(1))return null;return 0===F.readBits(1)?"key":"delta";case"av1":var O=!1,L=!0,N=!1,z=void 0;try{for(var V,G=H(r)[Symbol.iterator]();!(L=(V=G.next()).done);L=!0){var q=V.value,W=q.type,K=q.data;if(1===W){var X=new(0,p.Bitstream)(K);X.skipBits(4),O=!!X.readBits(1)}else if(3===W||6===W||7===W){if(O)return"key";var 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f=u.slice(0,l).toUpperCase(),h=u.slice(l+1);switch(null!=t.raw||(t.raw={}),null!=(v=t.raw)[f]||(v[f]=h),f){case"TITLE":null!=t.title||(t.title=h);break;case"DESCRIPTION":null!=t.description||(t.description=h);break;case"ARTIST":null!=t.artist||(t.artist=h);break;case"ALBUM":null!=t.album||(t.album=h);break;case"ALBUMARTIST":null!=t.albumArtist||(t.albumArtist=h);break;case"COMMENT":null!=t.comment||(t.comment=h);break;case"LYRICS":null!=t.lyrics||(t.lyrics=h);break;case"TRACKNUMBER":var m,g,v,y=h.split("/"),k=Number.parseInt(y[0],10),b=y[1]&&Number.parseInt(y[1],10);Number.isInteger(k)&&k>0&&(null!=t.trackNumber||(t.trackNumber=k)),b&&Number.isInteger(b)&&b>0&&(null!=t.tracksTotal||(t.tracksTotal=b));break;case"TRACKTOTAL":var _=Number.parseInt(h,10);Number.isInteger(_)&&_>0&&(null!=t.tracksTotal||(t.tracksTotal=_));break;case"DISCNUMBER":var 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i=e("@swc/helpers/cjs/_async_iterator.cjs"),s=e("@swc/helpers/cjs/_async_to_generator.cjs"),o=e("@swc/helpers/cjs/_call_super.cjs"),c=e("@swc/helpers/cjs/_class_call_check.cjs"),u=e("@swc/helpers/cjs/_create_class.cjs"),l=e("@swc/helpers/cjs/_inherits.cjs"),d=e("@swc/helpers/cjs/_ts_generator.cjs"),f=e("./codec-data.js"),h=e("./custom-coder.js"),p=e("./media-sink.js"),m=e("./misc.js"),g=e("./packet.js"),v=function(){"use strict";function e(t,r){(0,c._)(this,e),this.input=t,this._backing=r}return(0,u._)(e,[{key:"isVideoTrack",value:function(){return this instanceof y}},{key:"isAudioTrack",value:function(){return this instanceof k}},{key:"id",get:function(){return this._backing.getId()}},{key:"number",get:function(){return this._backing.getNumber()}},{key:"internalCodecId",get:function(){return this._backing.getInternalCodecId()}},{key:"languageCode",get:function(){return this._backing.getLanguageCode()}},{key:"name",get:function(){return this._backing.getName()}},{key:"timeResolution",get:function(){return this._backing.getTimeResolution()}},{key:"disposition",get:function(){return this._backing.getDisposition()}},{key:"getFirstTimestamp",value:function(){return this._backing.getFirstTimestamp()}},{key:"computeDuration",value:function(){return this._backing.computeDuration()}},{key:"computePacketStats",value:function(){return(0,s._)(function(){var e,t,r,n,a,s,o,c,u,l,f,h,m,g=arguments;return(0,d._)(this,function(d){switch(d.label){case 0:e=g.length>0&&void 0!==g[0]?g[0]:1/0,t=new(0,p.EncodedPacketSink)(this),r=1/0,n=-1/0,a=0,s=0,o=!1,c=!1,d.label=1;case 1:d.trys.push([1,6,7,12]),l=(0,i._)(t.packets(void 0,void 0,{metadataOnly:!0})),d.label=2;case 2:return[4,l.next()];case 3:if(!(o=!(f=d.sent()).done)||(h=f.value,a>=e&&h.timestamp>=n))return[3,5];r=Math.min(r,h.timestamp),n=Math.max(n,h.timestamp+h.duration),a++,s+=h.byteLength,d.label=4;case 4:return o=!1,[3,2];case 5:return[3,12];case 6:return m=d.sent(),c=!0,u=m,[3,12];case 7:if(d.trys.push([7,,10,11]),!(o&&null!=l.return))return[3,9];return[4,l.return()];case 8:d.sent(),d.label=9;case 9:return[3,11];case 10:if(c)throw u;return[7];case 11:return[7];case 12:return[2,{packetCount:a,averagePacketRate:a?Number((a/(n-r)).toPrecision(16)):0,averageBitrate:a?Number((8*s/(n-r)).toPrecision(16)):0}]}})}).apply(this,arguments)}}]),e}(),y=function(e){"use strict";function t(e,r){var n;return(0,c._)(this,t),(n=(0,o._)(this,t,[e,r]))._backing=r,n}return(0,l._)(t,e),(0,u._)(t,[{key:"type",get:function(){return"video"}},{key:"codec",get:function(){return this._backing.getCodec()}},{key:"codedWidth",get:function(){return this._backing.getCodedWidth()}},{key:"codedHeight",get:function(){return this._backing.getCodedHeight()}},{key:"rotation",get:function(){return this._backing.getRotation()}},{key:"displayWidth",get:function(){return this._backing.getRotation()%180==0?this._backing.getCodedWidth():this._backing.getCodedHeight()}},{key:"displayHeight",get:function(){return this._backing.getRotation()%180==0?this._backing.getCodedHeight():this._backing.getCodedWidth()}},{key:"getColorSpace",value:function(){return this._backing.getColorSpace()}},{key:"hasHighDynamicRange",value:function(){return(0,s._)(function(){var e;return(0,d._)(this,function(t){switch(t.label){case 0:return[4,this._backing.getColorSpace()];case 1:return[2,"bt2020"===(e=t.sent()).primaries||"smpte432"===e.primaries||"pg"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix]}})}).call(this)}},{key:"canBeTransparent",value:function(){return this._backing.canBeTransparent()}},{key:"getDecoderConfig",value:function(){return this._backing.getDecoderConfig()}},{key:"getCodecParameterString",value:function(){return(0,s._)(function(){var e,t;return(0,d._)(this,function(r){switch(r.label){case 0:return[4,this._backing.getDecoderConfig()];case 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R}),a.export(r,"CanvasSink",function(){return F}),a.export(r,"AudioSampleSink",function(){return L}),a.export(r,"AudioBufferSink",function(){return N});var i=e("@swc/helpers/cjs/_async_iterator.cjs"),s=e("@swc/helpers/cjs/_async_to_generator.cjs"),o=e("@swc/helpers/cjs/_call_super.cjs"),c=e("@swc/helpers/cjs/_class_call_check.cjs"),u=e("@swc/helpers/cjs/_create_class.cjs"),l=e("@swc/helpers/cjs/_define_property.cjs"),d=e("@swc/helpers/cjs/_inherits.cjs"),f=e("@swc/helpers/cjs/_object_spread.cjs"),h=e("@swc/helpers/cjs/_object_spread_props.cjs"),p=e("@swc/helpers/cjs/_sliced_to_array.cjs"),m=e("@swc/helpers/cjs/_type_of.cjs"),g=e("@swc/helpers/cjs/_ts_generator.cjs"),v=e("./codec.js"),y=e("./codec-data.js"),k=e("./custom-coder.js"),b=e("./input.js"),_=e("./input-track.js"),S=e("./misc.js"),w=e("./packet.js"),T=e("./pcm.js"),I=e("./sample.js"),x=function(e){if(!e||(void 0===e?"undefined":(0,m._)(e))!=="object")throw TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!=typeof e.metadataOnly)throw TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!=typeof e.verifyKeyPackets)throw TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.")},E=function(e){if(!(0,S.isNumber)(e))throw TypeError("timestamp must be a number.")},P=function(e,t,r){return r.verifyKeyPackets?t.then(function(t){return(0,s._)(function(){var r;return(0,g._)(this,function(n){switch(n.label){case 0:if(!t||"delta"===t.type)return[2,t];return[4,e.determinePacketType(t)];case 1:return(r=n.sent())&&(t.type=r),[2,t]}})})()}):t},j=function(){"use strict";function e(t){if((0,c._)(this,e),!(t instanceof _.InputTrack))throw TypeError("track must be an InputTrack.");this._track=t}return(0,u._)(e,[{key:"getFirstPacket",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};if(x(e),this._track.input._disposed)throw new(0,b.InputDisposedError);return P(this._track,this._track._backing.getFirstPacket(e),e)}},{key:"getPacket",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(E(e),x(t),this._track.input._disposed)throw new(0,b.InputDisposedError);return P(this._track,this._track._backing.getPacket(e,t),t)}},{key:"getNextPacket",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(!(e instanceof w.EncodedPacket))throw TypeError("packet must be an EncodedPacket.");if(x(t),this._track.input._disposed)throw new(0,b.InputDisposedError);return P(this._track,this._track._backing.getNextPacket(e,t),t)}},{key:"getKeyPacket",value:function(e){return(0,s._)(function(e){var t,r,n=arguments;return(0,g._)(this,function(a){switch(a.label){case 0:if(t=n.length>1&&void 0!==n[1]?n[1]:{},E(e),x(t),this._track.input._disposed)throw new(0,b.InputDisposedError);if(!t.verifyKeyPackets)return[2,this._track._backing.getKeyPacket(e,t)];return[4,this._track._backing.getKeyPacket(e,t)];case 1:if(!(r=a.sent()))return[2,r];return(0,S.assert)("key"===r.type),[4,this._track.determinePacketType(r)];case 2:if("delta"===a.sent())return[2,this.getKeyPacket(r.timestamp-1/this._track.timeResolution,t)];return[2,r]}})}).apply(this,arguments)}},{key:"getNextKeyPacket",value:function(e){return(0,s._)(function(e){var t,r,n=arguments;return(0,g._)(this,function(a){switch(a.label){case 0:if(t=n.length>1&&void 0!==n[1]?n[1]:{},!(e instanceof w.EncodedPacket))throw TypeError("packet must be an EncodedPacket.");if(x(t),this._track.input._disposed)throw new(0,b.InputDisposedError);if(!t.verifyKeyPackets)return[2,this._track._backing.getNextKeyPacket(e,t)];return[4,this._track._backing.getNextKeyPacket(e,t)];case 1:if(!(r=a.sent()))return[2,r];return(0,S.assert)("key"===r.type),[4,this._track.determinePacketType(r)];case 2:if("delta"===a.sent())return[2,this.getNextKeyPacket(r,t)];return[2,r]}})}).apply(this,arguments)}},{key:"packets",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};if(void 0!==e&&!(e instanceof w.EncodedPacket))throw TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!(null==r?void 0:r.metadataOnly))throw TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof w.EncodedPacket))throw TypeError("endPacket must be an EncodedPacket.");if(x(r),this._track.input._disposed)throw new(0,b.InputDisposedError);var n=[],a=(0,S.promiseWithResolvers)(),i=a.promise,o=a.resolve,c=(0,S.promiseWithResolvers)(),u=c.promise,d=c.resolve,f=!1,h=!1,p=null,m=[];(0,s._)(function(){var a,s,c,l;return(0,g._)(this,function(p){switch(p.label){case 0:if(null==e)return[3,1];return s=e,[3,3];case 1:return[4,this.getFirstPacket(r)];case 2:s=p.sent(),p.label=3;case 3:a=s,p.label=4;case 4:if(!(a&&!h&&!this._track.input._disposed)||t&&a.sequenceNumber>=(null==t?void 0:t.sequenceNumber))return[3,8];if(!(n.length>Math.max(2,m.length)))return[3,6];return u=(c=(0,S.promiseWithResolvers)()).promise,d=c.resolve,[4,u];case 5:return p.sent(),[3,4];case 6:return n.push(a),o(),i=(l=(0,S.promiseWithResolvers)()).promise,o=l.resolve,[4,this.getNextPacket(a,r)];case 7:return a=p.sent(),[3,4];case 8:return f=!0,o(),[2]}})}).call(this).catch(function(e){p||(p=e,o())});var v=this._track;return(0,l._)({next:function(){return(0,s._)(function(){var e,t;return(0,g._)(this,function(r){switch(r.label){case 0:if(!v.input._disposed)return[3,1];throw new(0,b.InputDisposedError);case 1:if(!h)return[3,2];return[2,{value:void 0,done:!0}];case 2:if(!p)return[3,3];throw p;case 3:if(!(n.length>0))return[3,4];for(e=n.shift(),t=performance.now(),m.push(t);m.length>0&&t-m[0]>=1e3;)m.shift();return d(),[2,{value:e,done:!1}];case 4:if(!f)return[3,5];return[2,{value:void 0,done:!0}];case 5:return[4,i];case 6:r.sent(),r.label=7;case 7:return[3,0];case 8:return[2]}})})()},return:function(){return(0,s._)(function(){return(0,g._)(this,function(e){return h=!0,d(),o(),[2,{value:void 0,done:!0}]})})()},throw:function(e){return(0,s._)(function(){return(0,g._)(this,function(t){throw e})})()}},Symbol.asyncIterator,function(){return this})}}]),e}(),C=function e(t,r){"use strict";(0,c._)(this,e),this.onSample=t,this.onError=r},A=function(){"use strict";function e(){(0,c._)(this,e)}return(0,u._)(e,[{key:"mediaSamplesInRange",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:1/0;E(e),E(t);var r=[],n=!1,a=null,i=(0,S.promiseWithResolvers)(),o=i.promise,c=i.resolve,u=(0,S.promiseWithResolvers)(),d=u.promise,f=u.resolve,h=!1,p=!1,m=!1,v=null;(0,s._)(function(){var i,s,u,l,y,k,b,_,w,T,I;return(0,g._)(this,function(g){switch(g.label){case 0:return[4,this._createDecoder(function(i){if(f(),i.timestamp>=t&&(p=!0),p)return void i.close();if(a&&(i.timestamp>e?(r.push(a),n=!0):a.close()),i.timestamp>=e&&(r.push(i),n=!0),a=n?null:i,r.length>0){var s;c(),o=(s=(0,S.promiseWithResolvers)()).promise,c=s.resolve}},function(e){v||(v=e,c())})];case 1:return i=g.sent(),[4,(s=this._createPacketSink()).getKeyPacket(e,{verifyKeyPackets:!0})];case 2:if(null==(u=g.sent()))return[3,3];return y=u,[3,5];case 3:return[4,s.getFirstPacket()];case 4:y=g.sent(),g.label=5;case 5:return k=l=y,b=void 0,[4,(_=s.packets(null!=l?l:void 0,b)).next()];case 6:g.sent(),g.label=7;case 7:if(!(k&&!p&&!this._track.input._disposed))return[3,11];if(w=B(r.length),!(r.length+i.getDecodeQueueSize()>w))return[3,9];return d=(T=(0,S.promiseWithResolvers)()).promise,f=T.resolve,[4,d];case 8:return g.sent(),[3,7];case 9:return i.decode(k),[4,_.next()];case 10:if((I=g.sent()).done)return[3,11];return k=I.value,[3,7];case 11:return[4,_.return()];case 12:if(g.sent(),!(!m&&!this._track.input._disposed))return[3,14];return[4,i.flush()];case 13:g.sent(),g.label=14;case 14:return i.close(),!n&&a&&r.push(a),h=!0,c(),[2]}})}).call(this).catch(function(e){v||(v=e,c())});var y=this._track,k=function(){null==a||a.close();var e=!0,t=!1,n=void 0;try{for(var i,s=r[Symbol.iterator]();!(e=(i=s.next()).done);e=!0)i.value.close()}catch(e){t=!0,n=e}finally{try{e||null==s.return||s.return()}finally{if(t)throw n}}};return(0,l._)({next:function(){return(0,s._)(function(){var e;return(0,g._)(this,function(t){switch(t.label){case 0:if(!y.input._disposed)return[3,1];throw k(),new(0,b.InputDisposedError);case 1:if(!m)return[3,2];return[2,{value:void 0,done:!0}];case 2:if(!v)return[3,3];throw k(),v;case 3:if(!(r.length>0))return[3,4];return e=r.shift(),f(),[2,{value:e,done:!1}];case 4:if(h)return[3,6];return[4,o];case 5:return t.sent(),[3,7];case 6:return[2,{value:void 0,done:!0}];case 7:return[3,0];case 8:return[2]}})})()},return:function(){return(0,s._)(function(){return(0,g._)(this,function(e){return m=!0,p=!0,f(),c(),k(),[2,{value:void 0,done:!0}]})})()},throw:function(e){return(0,s._)(function(){return(0,g._)(this,function(t){throw e})})()}},Symbol.asyncIterator,function(){return this})}},{key:"mediaSamplesAtTimestamps",value:function(e){(0,S.validateAnyIterable)(e);var t=(0,S.toAsyncIterator)(e),r=[],n=[],a=(0,S.promiseWithResolvers)(),o=a.promise,c=a.resolve,u=(0,S.promiseWithResolvers)(),d=u.promise,f=u.resolve,h=!1,p=!1,m=null,v=function(e){var t;n.push(e),c(),o=(t=(0,S.promiseWithResolvers)()).promise,c=t.resolve};(0,s._)(function(){var e,a,o,u,l,y,k,b,_,w,T,I,x,P,j,C,A;return(0,g._)(this,function(M){switch(M.label){case 0:return[4,this._createDecoder(function(e){if(f(),p)return void e.close();for(var t=0;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(var n=0;n<t;n++)v(n<t-1?e.clone():e);else e.close()},function(e){m||(m=e,c())})];case 1:e=M.sent(),a=this._createPacketSink(),o=null,u=null,l=-1,y=function(){return(0,s._)(function(){var t,r,i,s;return(0,g._)(this,function(o){switch(o.label){case 0:(0,S.assert)(u),t=u,e.decode(t),o.label=1;case 1:if(!(t.sequenceNumber<l))return[3,6];r=B(n.length),o.label=2;case 2:if(!(n.length+e.getDecodeQueueSize()>r&&!p))return[3,4];return d=(i=(0,S.promiseWithResolvers)()).promise,f=i.resolve,[4,d];case 3:return o.sent(),[3,2];case 4:if(p)return[3,6];return[4,a.getNextPacket(t)];case 5:return s=o.sent(),(0,S.assert)(s),e.decode(s),t=s,[3,1];case 6:return l=-1,[2]}})})()},k=function(){return(0,s._)(function(){var t;return(0,g._)(this,function(n){switch(n.label){case 0:return[4,e.flush()];case 1:for(n.sent(),t=0;t<r.length;t++)v(null);return r.length=0,[2]}})})()},b=!1,_=!1,M.label=2;case 2:M.trys.push([2,17,18,23]),T=(0,i._)(t),M.label=3;case 3:return[4,T.next()];case 4:if(!(b=!(I=M.sent()).done)||(E(x=I.value),p||this._track.input._disposed))return[3,16];return[4,a.getPacket(x)];case 5:if(!(C=P=M.sent()))return[3,7];return[4,a.getKeyPacket(x,{verifyKeyPackets:!0})];case 6:C=M.sent(),M.label=7;case 7:if(j=C)return[3,11];if(-1===l)return[3,10];return[4,y()];case 8:return M.sent(),[4,k()];case 9:M.sent(),M.label=10;case 10:return v(null),o=null,[3,15];case 11:if(!(o&&(j.sequenceNumber!==u.sequenceNumber||P.timestamp<o.timestamp)))return[3,14];return[4,y()];case 12:return M.sent(),[4,k()];case 13:M.sent(),M.label=14;case 14:r.push(P.timestamp),l=Math.max(P.sequenceNumber,l),o=P,u=j,M.label=15;case 15:return b=!1,[3,3];case 16:return[3,23];case 17:return A=M.sent(),_=!0,w=A,[3,23];case 18:if(M.trys.push([18,,21,22]),!(b&&null!=T.return))return[3,20];return[4,T.return()];case 19:M.sent(),M.label=20;case 20:return[3,22];case 21:if(_)throw w;return[7];case 22:return[7];case 23:if(!(!p&&!this._track.input._disposed))return[3,27];if(-1===l)return[3,25];return[4,y()];case 24:M.sent(),M.label=25;case 25:return[4,k()];case 26:M.sent(),M.label=27;case 27:return e.close(),h=!0,c(),[2]}})}).call(this).catch(function(e){m||(m=e,c())});var y=this._track,k=function(){var e=!0,t=!1,r=void 0;try{for(var a,i=n[Symbol.iterator]();!(e=(a=i.next()).done);e=!0){var s=a.value;null==s||s.close()}}catch(e){t=!0,r=e}finally{try{e||null==i.return||i.return()}finally{if(t)throw r}}};return(0,l._)({next:function(){return(0,s._)(function(){var e;return(0,g._)(this,function(t){switch(t.label){case 0:if(!y.input._disposed)return[3,1];throw k(),new(0,b.InputDisposedError);case 1:if(!p)return[3,2];return[2,{value:void 0,done:!0}];case 2:if(!m)return[3,3];throw k(),m;case 3:if(!(n.length>0))return[3,4];return e=n.shift(),(0,S.assert)(void 0!==e),f(),[2,{value:e,done:!1}];case 4:if(h)return[3,6];return[4,o];case 5:return t.sent(),[3,7];case 6:return[2,{value:void 0,done:!0}];case 7:return[3,0];case 8:return[2]}})})()},return:function(){return(0,s._)(function(){return(0,g._)(this,function(e){return p=!0,f(),c(),k(),[2,{value:void 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I.VideoSample))throw TypeError("The argument passed to onSample must be a VideoSample.");u.finalizeAndEmitSample(e)},u.customDecoderCallSerializer.call(function(){return u.customDecoder.init()});else{var d=function(e){if(u.alphaQueue.length>0){var t=u.alphaQueue.shift();(0,S.assert)(void 0!==t),u.mergeAlpha(e,t)}else u.colorQueue.push(e)};if("avc"===n&&u.decoderConfig.description&&(0,S.isChromium)()){var p=(0,y.deserializeAvcDecoderConfigurationRecord)((0,S.toUint8Array)(u.decoderConfig.description));if(p&&p.sequenceParameterSets.length>0){var m=(0,y.parseAvcSps)(p.sequenceParameterSets[0]);m&&0===m.frameMbsOnlyFlag&&(u.decoderConfig=(0,h._)((0,f._)({},u.decoderConfig),{hardwareAcceleration:"prefer-software"}))}}var g=Error("Decoding error").stack;u.decoder=new VideoDecoder({output:function(e){try{d(e)}catch(e){u.onError(e)}},error:function(e){e.stack=g,u.onError(e)}}),u.decoder.configure(u.decoderConfig)}return u}return(0,d._)(t,e),(0,u._)(t,[{key:"getDecodeQueueSize",value:function(){var e,t;return this.customDecoder?this.customDecoderQueueSize:((0,S.assert)(this.decoder),Math.max(this.decoder.decodeQueueSize,null!=(t=null==(e=this.alphaDecoder)?void 0:e.decodeQueueSize)?t:0))}},{key:"decode",value:function(e){var t=this;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(function(){return t.customDecoder.decode(e)}).then(function(){return t.customDecoderQueueSize--});else{if((0,S.assert)(this.decoder),(0,S.isWebKit)()||(0,S.insertSorted)(this.inputTimestamps,e.timestamp,function(e){return e}),(0,S.isChromium)()&&0===this.currentPacketIndex&&"avc"===this.codec){var r=[],n=!0,a=!1,i=void 0;try{for(var s,o=(0,y.iterateAvcNalUnits)(e.data,this.decoderConfig)[Symbol.iterator]();!(n=(s=o.next()).done);n=!0){var c=s.value,u=(0,y.extractNalUnitTypeForAvc)(e.data[c.offset]);u>=20&&u<=31||r.push(e.data.subarray(c.offset,c.offset+c.length))}}catch(e){a=!0,i=e}finally{try{n||null==o.return||o.return()}finally{if(a)throw i}}var l=(0,y.concatAvcNalUnits)(r,this.decoderConfig);e=new(0,w.EncodedPacket)(l,e.type,e.timestamp,e.duration)}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}},{key:"decodeAlphaData",value:function(e){var t=this;if(!e.sideData.alpha||this.mergerCreationFailed)return void this.pushNullAlphaFrame();if(!this.merger)try{this.merger=new D}catch(t){console.error("Due to an error, only color data will be decoded.",t),this.mergerCreationFailed=!0,this.decodeAlphaData(e);return}if(!this.alphaDecoder){var r=function(e){if(t.alphaDecoderQueueSize--,t.colorQueue.length>0){var r=t.colorQueue.shift();(0,S.assert)(void 0!==r),t.mergeAlpha(r,e)}else t.alphaQueue.push(e);for(t.decodedAlphaChunkCount++;t.nullAlphaFrameQueue.length>0&&t.nullAlphaFrameQueue[0]===t.decodedAlphaChunkCount;)if(t.nullAlphaFrameQueue.shift(),t.colorQueue.length>0){var n=t.colorQueue.shift();(0,S.assert)(void 0!==n),t.mergeAlpha(n,null)}else t.alphaQueue.push(null)},n=Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:function(e){try{r(e)}catch(e){t.onError(e)}},error:function(e){e.stack=n,t.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}var a=(0,y.determineVideoPacketType)(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===a),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!=a?a:e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}},{key:"pushNullAlphaFrame",value:function(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}},{key:"hasHevcRaslPicture",value:function(e){var t=!0,r=!1,n=void 0;try{for(var a,i=(0,y.iterateHevcNalUnits)(e,this.decoderConfig)[Symbol.iterator]();!(t=(a=i.next()).done);t=!0){var s=a.value,o=(0,y.extractNalUnitTypeForHevc)(e[s.offset]);if(o===y.HevcNalUnitType.RASL_N||o===y.HevcNalUnitType.RASL_R)return!0}}catch(e){r=!0,n=e}finally{try{t||null==i.return||i.return()}finally{if(r)throw n}}return!1}},{key:"sampleHandler",value:function(e){if((0,S.isWebKit)()){if(this.sampleQueue.length>0&&e.timestamp>=(0,S.last)(this.sampleQueue).timestamp){var t=!0,r=!1,n=void 0;try{for(var a,i=this.sampleQueue[Symbol.iterator]();!(t=(a=i.next()).done);t=!0){var s=a.value;this.finalizeAndEmitSample(s)}}catch(e){r=!0,n=e}finally{try{t||null==i.return||i.return()}finally{if(r)throw n}}this.sampleQueue.length=0}(0,S.insertSorted)(this.sampleQueue,e,function(e){return e.timestamp})}else{var o=this.inputTimestamps.shift();(0,S.assert)(void 0!==o),e.setTimestamp(o),this.finalizeAndEmitSample(e)}}},{key:"finalizeAndEmitSample",value:function(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)}},{key:"mergeAlpha",value:function(e,t){if(!t){var r,n=new(0,I.VideoSample)(e);this.sampleHandler(n);return}(0,S.assert)(this.merger),this.merger.update(e,t),e.close(),t.close();var a=new VideoFrame(this.merger.canvas,{timestamp:e.timestamp,duration:null!=(r=e.duration)?r:void 0}),i=new(0,I.VideoSample)(a);this.sampleHandler(i)}},{key:"flush",value:function(){return(0,s._)(function(){var e,t,r,n,a,i,s,o;return(0,g._)(this,function(c){switch(c.label){case 0:if(e=this,!this.customDecoder)return[3,2];return[4,this.customDecoderCallSerializer.call(function(){return e.customDecoder.flush()})];case 1:return c.sent(),[3,4];case 2:return(0,S.assert)(this.decoder),[4,Promise.all([this.decoder.flush(),null==(t=this.alphaDecoder)?void 0:t.flush()])];case 3:c.sent(),this.colorQueue.forEach(function(e){return e.close()}),this.colorQueue.length=0,this.alphaQueue.forEach(function(e){return 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,c.label=4;case 4:if((0,S.isWebKit)()){r=!0,n=!1,a=void 0;try{for(i=this.sampleQueue[Symbol.iterator]();!(r=(s=i.next()).done);r=!0)o=s.value,this.finalizeAndEmitSample(o)}catch(e){n=!0,a=e}finally{try{r||null==i.return||i.return()}finally{if(n)throw a}}this.sampleQueue.length=0}return this.currentPacketIndex=0,this.raslSkipped=!1,[2]}})}).call(this)}},{key:"close",value:function(){var e=this;this.customDecoder?this.customDecoderCallSerializer.call(function(){return e.customDecoder.close()}):((0,S.assert)(this.decoder),this.decoder.close(),null==(a=this.alphaDecoder)||a.close(),this.colorQueue.forEach(function(e){return e.close()}),this.colorQueue.length=0,this.alphaQueue.forEach(function(e){return null==e?void 0:e.close()}),this.alphaQueue.length=0,null==(i=this.merger)||i.close());var t=!0,r=!1,n=void 0;try{for(var a,i,s,o=this.sampleQueue[Symbol.iterator]();!(t=(s=o.next()).done);t=!0)s.value.close()}catch(e){r=!0,n=e}finally{try{t||null==o.return||o.return()}finally{if(r)throw n}}this.sampleQueue.length=0}}]),t}(C),D=function(){"use strict";function e(){(0,c._)(this,e),"u">typeof OffscreenCanvas?this.canvas=new OffscreenCanvas(300,150):this.canvas=document.createElement("canvas");var t=this.canvas.getContext("webgl2",{premultipliedAlpha:!1});if(!t)throw Error("Couldn't acquire WebGL 2 context.");this.gl=t,this.program=this.createProgram(),this.vao=this.createVAO(),this.colorTexture=this.createTexture(),this.alphaTexture=this.createTexture(),this.gl.useProgram(this.program),this.gl.uniform1i(this.gl.getUniformLocation(this.program,"u_colorTexture"),0),this.gl.uniform1i(this.gl.getUniformLocation(this.program,"u_alphaTexture"),1)}return(0,u._)(e,[{key:"createProgram",value:function(){var e=this.createShader(this.gl.VERTEX_SHADER,"#version 300 es\n in vec2 a_position;\n in vec2 a_texCoord;\n out vec2 v_texCoord;\n \n void main() {\n gl_Position = vec4(a_position, 0.0, 1.0);\n v_texCoord = a_texCoord;\n }\n "),t=this.createShader(this.gl.FRAGMENT_SHADER,"#version 300 es\n precision highp float;\n \n uniform sampler2D u_colorTexture;\n uniform sampler2D u_alphaTexture;\n in vec2 v_texCoord;\n out vec4 fragColor;\n \n void main() {\n vec3 color = texture(u_colorTexture, v_texCoord).rgb;\n float alpha = texture(u_alphaTexture, v_texCoord).r;\n fragColor = vec4(color, alpha);\n }\n "),r=this.gl.createProgram();return this.gl.attachShader(r,e),this.gl.attachShader(r,t),this.gl.linkProgram(r),r}},{key:"createShader",value:function(e,t){var r=this.gl.createShader(e);return this.gl.shaderSource(r,t),this.gl.compileShader(r),r}},{key:"createVAO",value:function(){var e=this.gl.createVertexArray();this.gl.bindVertexArray(e);var t=new Float32Array([-1,-1,0,1,1,-1,1,1,-1,1,0,0,1,1,1,0]),r=this.gl.createBuffer();this.gl.bindBuffer(this.gl.ARRAY_BUFFER,r),this.gl.bufferData(this.gl.ARRAY_BUFFER,t,this.gl.STATIC_DRAW);var n=this.gl.getAttribLocation(this.program,"a_position"),a=this.gl.getAttribLocation(this.program,"a_texCoord");return this.gl.enableVertexAttribArray(n),this.gl.vertexAttribPointer(n,2,this.gl.FLOAT,!1,16,0),this.gl.enableVertexAttribArray(a),this.gl.vertexAttribPointer(a,2,this.gl.FLOAT,!1,16,8),e}},{key:"createTexture",value:function(){var e=this.gl.createTexture();return this.gl.bindTexture(this.gl.TEXTURE_2D,e),this.gl.texParameteri(this.gl.TEXTURE_2D,this.gl.TEXTURE_WRAP_S,this.gl.CLAMP_TO_EDGE),this.gl.texParameteri(this.gl.TEXTURE_2D,this.gl.TEXTURE_WRAP_T,this.gl.CLAMP_TO_EDGE),this.gl.texParameteri(this.gl.TEXTURE_2D,this.gl.TEXTURE_MIN_FILTER,this.gl.LINEAR),this.gl.texParameteri(this.gl.TEXTURE_2D,this.gl.TEXTURE_MAG_FILTER,this.gl.LINEAR),e}},{key:"update",value:function(e,t){(e.displayWidth!==this.canvas.width||e.displayHeight!==this.canvas.height)&&(this.canvas.width=e.displayWidth,this.canvas.height=e.displayHeight),this.gl.activeTexture(this.gl.TEXTURE0),this.gl.bindTexture(this.gl.TEXTURE_2D,this.colorTexture),this.gl.texImage2D(this.gl.TEXTURE_2D,0,this.gl.RGBA,this.gl.RGBA,this.gl.UNSIGNED_BYTE,e),this.gl.activeTexture(this.gl.TEXTURE1),this.gl.bindTexture(this.gl.TEXTURE_2D,this.alphaTexture),this.gl.texImage2D(this.gl.TEXTURE_2D,0,this.gl.RGBA,this.gl.RGBA,this.gl.UNSIGNED_BYTE,t),this.gl.viewport(0,0,this.canvas.width,this.canvas.height),this.gl.clear(this.gl.COLOR_BUFFER_BIT),this.gl.bindVertexArray(this.vao),this.gl.drawArrays(this.gl.TRIANGLE_STRIP,0,4)}},{key:"close",value:function(){var e;null==(e=this.gl.getExtension("WEBGL_lose_context"))||e.loseContext(),this.gl=null}}]),e}(),R=function(e){"use strict";function t(e){var r;if((0,c._)(this,t),!(e instanceof _.InputVideoTrack))throw TypeError("videoTrack must be an InputVideoTrack.");return(r=(0,o._)(this,t))._track=e,r}return(0,d._)(t,e),(0,u._)(t,[{key:"_createDecoder",value:function(e,t){return(0,s._)(function(){var r,n,a,i;return(0,g._)(this,function(s){switch(s.label){case 0:return[4,this._track.canDecode()];case 1:if(!s.sent())throw Error("This video track cannot be decoded by this browser. Make sure to check decodability before using a track.");return r=this._track.codec,n=this._track.rotation,[4,this._track.getDecoderConfig()];case 2:return a=s.sent(),i=this._track.timeResolution,(0,S.assert)(r&&a),[2,new M(e,t,r,a,n,i)]}})}).call(this)}},{key:"_createPacketSink",value:function(){return new j(this._track)}},{key:"getSample",value:function(e){return(0,s._)(function(){var t,r,n,a,s,o;return(0,g._)(this,function(c){switch(c.label){case 0:E(e),t=!1,r=!1,c.label=1;case 1:c.trys.push([1,6,7,12]),a=(0,i._)(this.mediaSamplesAtTimestamps([e])),c.label=2;case 2:return[4,a.next()];case 3:if(!(t=!(s=c.sent()).done))return[3,5];return[2,s.value];case 4:return t=!1,[3,2];case 5:return[3,12];case 6:return o=c.sent(),r=!0,n=o,[3,12];case 7:if(c.trys.push([7,,10,11]),!(t&&null!=a.return))return[3,9];return[4,a.return()];case 8:c.sent(),c.label=9;case 9:return[3,11];case 10:if(r)throw n;return[7];case 11:return[7];case 12:throw Error("Internal error: Iterator returned 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TypeError("options.height, when defined, must be a positive integer.");if(void 0!==s.fit&&!["fill","contain","cover"].includes(s.fit))throw TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==s.width&&void 0!==s.height&&void 0===s.fit)throw TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==s.rotation&&![0,90,180,270].includes(s.rotation))throw TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==s.crop&&(0,I.validateCropRectangle)(s.crop,"options."),void 0!==s.poolSize&&("number"!=typeof s.poolSize||!Number.isInteger(s.poolSize)||s.poolSize<0))throw TypeError("poolSize must be a non-negative integer.");var o=null!=(r=s.rotation)?r:t.rotation,u=(0,p._)(o%180==0?[t.codedWidth,t.codedHeight]:[t.codedHeight,t.codedWidth],2),l=u[0],d=u[1],f=s.crop;f&&(0,I.clampCropRectangle)(f,l,d);var h=(0,p._)(f?[f.width,f.height]:[l,d],2),g=h[0],v=h[1],y=g/v;void 0!==s.width&&void 0===s.height?v=Math.round((g=s.width)/y):void 0===s.width&&void 0!==s.height?g=Math.round((v=s.height)*y):void 0!==s.width&&void 0!==s.height&&(g=s.width,v=s.height),this._videoTrack=t,this._alpha=null!=(n=s.alpha)&&n,this._width=g,this._height=v,this._rotation=o,this._crop=f,this._fit=null!=(a=s.fit)?a:"fill",this._videoSampleSink=new R(t),this._canvasPool=Array.from({length:null!=(i=s.poolSize)?i:0},function(){return null})}return(0,u._)(e,[{key:"_videoSampleToWrappedCanvas",value:function(e){var t=this._canvasPool[this._nextCanvasIndex],r=!1;t||("u">typeof document?((t=document.createElement("canvas")).width=this._width,t.height=this._height):t=new OffscreenCanvas(this._width,this._height),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=t),r=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);var n=t.getContext("2d",{alpha:this._alpha||(0,S.isFirefox)()});(0,S.assert)(n),n.resetTransform(),r||(!this._alpha&&(0,S.isFirefox)()?(n.fillStyle="black",n.fillRect(0,0,this._width,this._height)):n.clearRect(0,0,this._width,this._height)),e.drawWithFit(n,{fit:this._fit,rotation:this._rotation,crop:this._crop});var a={canvas:t,timestamp:e.timestamp,duration:e.duration};return e.close(),a}},{key:"getCanvas",value:function(e){return(0,s._)(function(){var t;return(0,g._)(this,function(r){switch(r.label){case 0:return E(e),[4,this._videoSampleSink.getSample(e)];case 1:return[2,(t=r.sent())&&this._videoSampleToWrappedCanvas(t)]}})}).call(this)}},{key:"canvases",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:1/0;return(0,S.mapAsyncGenerator)(this._videoSampleSink.samples(t,r),function(t){return e._videoSampleToWrappedCanvas(t)})}},{key:"canvasesAtTimestamps",value:function(e){var t=this;return(0,S.mapAsyncGenerator)(this._videoSampleSink.samplesAtTimestamps(e),function(e){return e&&t._videoSampleToWrappedCanvas(e)})}}]),e}(),U=function(e){"use strict";function t(e,r,n,a){(0,c._)(this,t),(i=(0,o._)(this,t,[e,r])).decoder=null,i.customDecoder=null,i.customDecoderCallSerializer=new(0,S.CallSerializer),i.customDecoderQueueSize=0,i.currentTimestamp=null;var i,s=function(t){(null===i.currentTimestamp||Math.abs(t.timestamp-i.currentTimestamp)>=t.duration)&&(i.currentTimestamp=t.timestamp);var r=i.currentTimestamp;if(i.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();var n=a.sampleRate;t.setTimestamp(Math.round(r*n)/n),e(t)},u=k.customAudioDecoders.find(function(e){return e.supports(n,a)});if(u)i.customDecoder=new u,i.customDecoder.codec=n,i.customDecoder.config=a,i.customDecoder.onSample=function(e){if(!(e instanceof I.AudioSample))throw TypeError("The argument passed to onSample must be an 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e.customDecoder.flush()}):((0,S.assert)(this.decoder),this.decoder.flush())}},{key:"close",value:function(){var e=this;this.customDecoder?this.customDecoderCallSerializer.call(function(){return e.customDecoder.close()}):((0,S.assert)(this.decoder),this.decoder.close())}}]),t}(C),O=function(e){"use strict";function t(e,r,n){(0,c._)(this,t),(a=(0,o._)(this,t,[e,r])).decoderConfig=n,a.currentTimestamp=null,(0,S.assert)(v.PCM_AUDIO_CODECS.includes(n.codec)),a.codec=n.codec;var a,i=(0,v.parsePcmCodec)(a.codec),s=i.dataType,u=i.sampleSize,l=i.littleEndian;switch(a.inputSampleSize=u,u){case 1:"unsigned"===s?a.readInputValue=function(e,t){return e.getUint8(t)-128}:"signed"===s?a.readInputValue=function(e,t){return e.getInt8(t)}:"ulaw"===s?a.readInputValue=function(e,t){return(0,T.fromUlaw)(e.getUint8(t))}:"alaw"===s?a.readInputValue=function(e,t){return(0,T.fromAlaw)(e.getUint8(t))}:(0,S.assert)(!1);break;case 2:"unsigned"===s?a.readInputValue=function(e,t){return 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e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:1/0;return(0,S.mapAsyncGenerator)(this._audioSampleSink.samples(t,r),function(t){return e._audioSampleToWrappedArrayBuffer(t)})}},{key:"buffersAtTimestamps",value:function(e){var t=this;return(0,S.mapAsyncGenerator)(this._audioSampleSink.samplesAtTimestamps(e),function(e){return 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For efficient media file streaming across a network, please make sure your server supports range requests.");else throw Error("HTTP response (status ".concat(a.status,") must surface Content-Length header."));return this._orchestrator.fileSize=s,this._existingResponses.set(i,{response:a,abortController:t}),this._orchestrator.runWorker(i),[2,s]}})}).call(this)}},{key:"_read",value:function(e,t){return this._orchestrator.read(e,t)}},{key:"_runWorker",value:function(e){return(0,i._)(function(){var t,r,n,a,i,s,o,c,u,p;return(0,d._)(this,function(m){switch(m.label){case 0:t=this,m.label=1;case 1:if(n=function(){var t,n,a,s,o,c,l;return(0,d._)(this,function(d){switch(d.label){case 0:if(e.currentPos>=e.targetPos||e.aborted)return i.abort(),e.running=!1,[2,{v:void 0}];a=void 0,d.label=1;case 1:return d.trys.push([1,3,,7]),[4,u.read()];case 2:return a=d.sent(),[3,7];case 3:if(s=d.sent(),r._disposed)throw s;if(null===(o=r._getRetryDelay(1,s,r._url)))return[3,5];return console.error("Error while reading response stream. Attempting to resume.",s),[4,new Promise(function(e){return setTimeout(e,1e3*o)})];case 4:return d.sent(),[2,"break"];case 5:throw s;case 6:return[3,7];case 7:if(e.aborted)return[2,"continue"];if(c=a.done,l=a.value,c){if(e.currentPos>=e.targetPos)return r._orchestrator.forgetWorker(e),e.running=!1,[2,{v:void 0}];return[2,"break"]}return null==(t=(n=r).onread)||t.call(n,e.currentPos,e.currentPos+l.length),r._orchestrator.supplyWorkerData(e,l),[2]}})},a=this._existingResponses.get(e),this._existingResponses.delete(e),i=null==a?void 0:a.abortController,s=null==a?void 0:a.response,i)return[3,3];return i=new AbortController,[4,(0,h.retriedFetch)(null!=(o=this._options.fetchFn)?o:fetch,this._url,(0,h.mergeRequestInit)(null!=(c=this._options.requestInit)?c:{},{headers:{Range:"bytes=".concat(e.currentPos,"-")},signal:i.signal}),this._getRetryDelay,function(){return t._disposed})];case 2:s=m.sent(),m.label=3;case 3:if((0,h.assert)(s),!s.ok)throw Error("Error fetching ".concat(String(this._url),": ").concat(s.status," ").concat(s.statusText));if(e.currentPos>0&&206!==s.status)throw Error("HTTP server did not respond with 206 Partial Content to a range request. To enable efficient media file streaming across a network, please make sure your server supports range requests.");if(!s.body)throw Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");u=s.body.getReader(),m.label=4;case 4:return r=this,[5,(0,f._)(n())];case 5:if(p=m.sent(),"object"===(0,l._)(p))return[2,p.v];if("break"===p)return[3,6];return[3,4];case 6:return[3,1];case 7:return[2]}})}).call(this)}},{key:"_getTotalLengthFromRangeResponse",value:function(e){var t=e.headers.get("Content-Range");if(t){var r=/\/(\d+)/.exec(t);if(r)return Number(r[1])}var n=e.headers.get("Content-Length");if(n)return Number(n);throw Error("Partial HTTP response (status 206) must surface either Content-Range or Content-Length header.")}},{key:"_dispose",value:function(){this._orchestrator.dispose()}}]),t}(v),S=function(e){"use strict";function t(e){var r,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if((0,o._)(this,t),"string"!=typeof e)throw TypeError("filePath must be a string.");if(!n||(void 0===n?"undefined":(0,l._)(n))!=="object")throw TypeError("options must be an object.");if(void 0!==n.maxCacheSize&&(!(0,h.isNumber)(n.maxCacheSize)||n.maxCacheSize<0))throw TypeError("options.maxCacheSize, when provided, must be a non-negative number.");return(r=(0,s._)(this,t))._fileHandle=null,r._streamSource=new w({getSize:function(){return(0,i._)(function(){return(0,d._)(this,function(t){switch(t.label){case 0:return[4,g.fs.open(e,"r")];case 1:return r._fileHandle=t.sent(),[4,r._fileHandle.stat()];case 2:return[2,t.sent().size]}})})()},read:function(e,t){return(0,i._)(function(){var n;return(0,d._)(this,function(a){switch(a.label){case 0:return(0,h.assert)(r._fileHandle),n=new Uint8Array(t-e),[4,r._fileHandle.read(n,0,t-e,e)];case 1:return a.sent(),[2,n]}})})()},maxCacheSize:n.maxCacheSize,prefetchProfile:"fileSystem"}),r}return(0,u._)(t,e),(0,c._)(t,[{key:"_read",value:function(e,t){return this._streamSource._read(e,t)}},{key:"_retrieveSize",value:function(){return this._streamSource._retrieveSize()}},{key:"_dispose",value:function(){var e;this._streamSource._dispose(),null==(e=this._fileHandle)||e.close(),this._fileHandle=null}}]),t}(v),w=function(e){"use strict";function t(e){var r,n,a;if((0,o._)(this,t),!e||(void 0===e?"undefined":(0,l._)(e))!=="object")throw TypeError("options must be an object.");if("function"!=typeof e.getSize)throw TypeError("options.getSize must be a function.");if("function"!=typeof e.read)throw TypeError("options.read must be a function.");if(void 0!==e.dispose&&"function"!=typeof e.dispose)throw TypeError("options.dispose, when provided, must be a function.");if(void 0!==e.maxCacheSize&&(!(0,h.isNumber)(e.maxCacheSize)||e.maxCacheSize<0))throw TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(e.prefetchProfile&&!["none","fileSystem","network"].includes(e.prefetchProfile))throw TypeError("options.prefetchProfile, when provided, must be one of 'none', 'fileSystem' or 'network'.");return(r=(0,s._)(this,t))._options=e,r._orchestrator=new 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Promise))return[3,2];return[4,n];case 1:n=d.sent(),d.label=2;case 2:if(e.aborted)return[3,9];if(!(n instanceof Uint8Array))return[3,3];if((n=(0,h.toUint8Array)(n)).length!==r-e.currentPos)throw Error("options.read returned a Uint8Array with unexpected length: Requested ".concat(r-e.currentPos," bytes, but got ").concat(n.length,"."));return null==(a=(i=this).onread)||a.call(i,e.currentPos,e.currentPos+n.length),this._orchestrator.supplyWorkerData(e,n),[3,8];case 3:if(!(n instanceof ReadableStream))return[3,7];s=n.getReader(),d.label=4;case 4:if(!(e.currentPos<r&&!e.aborted))return[3,6];return[4,s.read()];case 5:if(l=(u=d.sent()).done,f=u.value,l){if(e.currentPos<r)throw Error("ReadableStream returned by options.read ended before supplying enough data."+" Requested ".concat(r-t," bytes, but got ").concat(e.currentPos-t));return[3,6]}if(!(f instanceof Uint8Array))throw TypeError("ReadableStream returned by options.read must yield Uint8Array chunks.");if(e.aborted)return[3,6];return p=(0,h.toUint8Array)(f),null==(o=(c=this).onread)||o.call(c,e.currentPos,e.currentPos+p.length),this._orchestrator.supplyWorkerData(e,p),[3,4];case 6:return[3,8];case 7:throw TypeError("options.read must return or resolve to a Uint8Array or a ReadableStream.");case 8:return[3,0];case 9:return e.running=!1,[2]}})}).call(this)}},{key:"_dispose",value:function(){var e,t;this._orchestrator.dispose(),null==(e=(t=this._options).dispose)||e.call(t)}}]),t}(v),T=function(e){"use strict";function t(e){var r,n,a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if((0,o._)(this,t),!(e instanceof ReadableStream))throw TypeError("stream must be a ReadableStream.");if(!a||(void 0===a?"undefined":(0,l._)(a))!=="object")throw TypeError("options must be an object.");if(void 0!==a.maxCacheSize&&(!(0,h.isNumber)(a.maxCacheSize)||a.maxCacheSize<0))throw TypeError("options.maxCacheSize, when provided, must be a non-negative number.");return(r=(0,s._)(this,t))._reader=null,r._cache=[],r._pendingSlices=[],r._currentIndex=0,r._targetIndex=0,r._maxRequestedIndex=0,r._endIndex=null,r._pulling=!1,r._stream=e,r._maxCacheSize=null!=(n=a.maxCacheSize)?n:0x1000000,r}return(0,u._)(t,e),(0,c._)(t,[{key:"_retrieveSize",value:function(){return this._endIndex}},{key:"_read",value:function(e,t){var r=this;if(null!==this._endIndex&&t>this._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);var n=(0,h.binarySearchLessOrEqual)(this._cache,e,function(e){return e.start}),a=-1!==n?this._cache[n]:null;if(a&&a.start<=e&&t<=a.end)return{bytes:a.bytes,view:a.view,offset:a.start};var i=e,s=new Uint8Array(t-e);if(-1!==n)for(var o=n;o<this._cache.length;o++){var c=this._cache[o];if(c.start>=t)break;var u=Math.max(e,c.start);u>i&&this._throwDueToCacheMiss();var l=Math.min(t,c.end);u<l&&(s.set(c.bytes.subarray(u-c.start,l-c.start),u-e),i=l)}if(i===t)return{bytes:s,view:(0,h.toDataView)(s),offset:e};this._currentIndex>i&&this._throwDueToCacheMiss();var d=(0,h.promiseWithResolvers)(),f=d.promise,p=d.resolve,m=d.reject;return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:p,reject:m}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(function(e){if(r._pulling=!1,r._pendingSlices.length>0)r._pendingSlices.forEach(function(t){return t.reject(e)}),r._pendingSlices.length=0;else throw e})),f}},{key:"_throwDueToCacheMiss",value:function(){throw Error("Read is before the cached region. With ReadableStreamSource, you must access the data more sequentially or increase the size of its cache.")}},{key:"_pull",value:function(){return(0,i._)(function(){var e,t,r,n,a,i,s,o,c,u,l,f,p,m,g;return(0,d._)(this,function(d){switch(d.label){case 0:null!=this._reader||(this._reader=this._stream.getReader()),d.label=1;case 1:if(!(this._currentIndex<this._targetIndex&&!this._disposed))return[3,3];return[4,this._reader.read()];case 2:if(t=(e=d.sent()).done,r=e.value,t){n=!0,a=!1,i=void 0;try{for(s=this._pendingSlices[Symbol.iterator]();!(n=(o=s.next()).done);n=!0)o.value.resolve(null)}catch(e){a=!0,i=e}finally{try{n||null==s.return||s.return()}finally{if(a)throw i}}return 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this._pulling=!1,[2]}})}).call(this)}},{key:"_dispose",value:function(){this._pendingSlices.length=0,this._cache.length=0}}]),t}(v),I={none:function(e,t){return{start:e,end:t}},fileSystem:function(e,t){return{start:e=65536*Math.floor((e-65536)/65536),end:t=65536*Math.ceil((t+65536)/65536)}},network:function(e,t,r){e=Math.max(0,65536*Math.floor((e-65536)/65536));var n=!0,a=!1,i=void 0;try{for(var s,o=r[Symbol.iterator]();!(n=(s=o.next()).done);n=!0){var c=s.value,u=Math.max((c.startPos+c.targetPos)/2,c.targetPos-8388608);if((0,h.closedIntervalsOverlap)(e,t,u,c.targetPos)){var l=c.targetPos-c.startPos,d=8388608*Math.ceil((l+1)/8388608),f=Math.pow(2,Math.ceil(Math.log2(l+1))),p=Math.min(f,d);t=Math.max(t,c.startPos+p)}}}catch(e){a=!0,i=e}finally{try{n||null==o.return||o.return()}finally{if(a)throw i}}return t=Math.max(t,e+524288),{start:e,end:t}}},x=function(){"use strict";function e(t){(0,o._)(this,e),this.options=t,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1}return(0,c._)(e,[{key:"read",value:function(e,t){(0,h.assert)(null!==this.fileSize);var r=this.options.prefetchProfile(e,t,this.workers),n=Math.max(r.start,0),a=Math.min(r.end,this.fileSize);(0,h.assert)(n<=e&&t<=a);var i=null,s=(0,h.binarySearchLessOrEqual)(this.cache,e,function(e){return e.start}),o=-1!==s?this.cache[s]:null;o&&o.start<=e&&t<=o.end&&(o.age=this.nextAge++,i={bytes:o.bytes,view:o.view,offset:o.start});var c=(0,h.binarySearchLessOrEqual)(this.cache,n,function(e){return e.start}),u=i?null:new Uint8Array(t-e),l=0,d=n,f=[];if(-1!==c){for(var p=c;p<this.cache.length;p++){var m=this.cache[p];if(m.start>=a)break;if(!(m.end<=n)){var g=Math.max(n,m.start),v=Math.min(a,m.end);if((0,h.assert)(g<=v),d<g&&f.push({start:d,end:g}),d=v,u){var y=Math.max(e,m.start),k=Math.min(t,m.end);if(y<k){var b=y-e;u.set(m.bytes.subarray(y-m.start,k-m.start),b),b===l&&(l=k-e)}}m.age=this.nextAge++}}d<a&&f.push({start:d,end:a})}else f.push({start:n,end:a});if(u&&l>=u.length&&(i={bytes:u,view:(0,h.toDataView)(u),offset:e}),0===f.length)return(0,h.assert)(i),i;var _=(0,h.promiseWithResolvers)(),S=_.promise,w=_.resolve,T=_.reject,I=[],x=!0,E=!1,P=void 0;try{for(var j,C=f[Symbol.iterator]();!(x=(j=C.next()).done);x=!0){var A=j.value,B=Math.max(e,A.start),M=Math.min(t,A.end);B===A.start&&M===A.end?I.push(A):B<M&&I.push({start:B,end:M})}}catch(e){E=!0,P=e}finally{try{x||null==C.return||C.return()}finally{if(E)throw P}}var D=!0,R=!1,F=void 0;try{for(var U,O=f[Symbol.iterator]();!(D=(U=O.next()).done);D=!0){var L=U.value,N=u&&{start:e,bytes:u,holes:I,resolve:w,reject:T},z=!1,V=!0,H=!1,G=void 0;try{for(var q,W=this.workers[Symbol.iterator]();!(V=(q=W.next()).done);V=!0){var K=q.value;if((0,h.closedIntervalsOverlap)(L.start-131072,L.start,K.currentPos,K.targetPos)){K.targetPos=Math.max(K.targetPos,L.end),z=!0,N&&!K.pendingSlices.includes(N)&&K.pendingSlices.push(N),K.running||this.runWorker(K);break}}}catch(e){H=!0,G=e}finally{try{V||null==W.return||W.return()}finally{if(H)throw G}}if(!z){var X=this.createWorker(L.start,L.end);N&&(X.pendingSlices=[N]),this.runWorker(X)}}}catch(e){R=!0,F=e}finally{try{D||null==O.return||O.return()}finally{if(R)throw F}}return i||((0,h.assert)(u),i=S.then(function(t){return{bytes:t,view:(0,h.toDataView)(t),offset:e}})),i}},{key:"createWorker",value:function(e,t){var r={startPos:e,currentPos:e,targetPos:t,running:!1,aborted:this.disposed,pendingSlices:[],age:this.nextAge++};for(this.workers.push(r);this.workers.length>this.options.maxWorkerCount;){for(var n=0,a=this.workers[0],i=1;i<this.workers.length;i++){var 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u=i.holes[c];r<=u.start&&n>u.start&&(u.start=n),u.end<=u.start&&(i.holes.splice(c,1),c--)}0===i.holes.length&&(i.resolve(i.bytes),e.pendingSlices.splice(a,1),a--)}for(var l=0;l<this.workers.length;l++){var d=this.workers[l];e!==d&&!d.running&&(0,h.closedIntervalsOverlap)(r,n,d.currentPos,d.targetPos)&&(this.workers.splice(l,1),l--)}}},{key:"forgetWorker",value:function(e){var t=this.workers.indexOf(e);(0,h.assert)(-1!==t),this.workers.splice(t,1)}},{key:"insertIntoCache",value:function(e){if(0!==this.options.maxCacheSize){var t=(0,h.binarySearchLessOrEqual)(this.cache,e.start,function(e){return e.start})+1;if(t>0){var r=this.cache[t-1];if(r.end>=e.end)return;if(r.end>e.start){var n=new Uint8Array(e.end-r.start);n.set(r.bytes,0),n.set(e.bytes,e.start-r.start),this.currentCacheSize+=e.end-r.end,r.bytes=n,r.view=(0,h.toDataView)(n),r.end=e.end,t--,e=r}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else 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EncodedVideoChunk)throw Error("Your browser does not support EncodedVideoChunk.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}},{key:"alphaToEncodedVideoChunk",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.type;if(!this.sideData.alpha)throw TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw TypeError("Metadata-only packets cannot be converted to a video chunk.");if("u"<typeof EncodedVideoChunk)throw Error("Your browser does not support EncodedVideoChunk.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}},{key:"toEncodedAudioChunk",value:function(){if(this.isMetadataOnly)throw TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("u"<typeof EncodedAudioChunk)throw Error("Your browser does not support 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TypeError("init.codedHeight must be a positive integer.");if(void 0!==r.rotation&&![0,90,180,270].includes(r.rotation))throw TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(r.timestamp))throw TypeError("init.timestamp must be a number.");if(void 0!==r.duration&&(!Number.isFinite(r.duration)||r.duration<0))throw TypeError("init.duration, when provided, must be a non-negative number.");this._data=(0,d.toUint8Array)(t).slice(),this._layout=null!=(n=r.layout)?n:w(r.format,r.codedWidth,r.codedHeight),this.format=r.format,this.codedWidth=r.codedWidth,this.codedHeight=r.codedHeight,this.rotation=null!=(a=r.rotation)?a:0,this.timestamp=r.timestamp,this.duration=null!=(i=r.duration)?i:0,this.colorSpace=new y(r.colorSpace)}else if("u">typeof VideoFrame&&t instanceof VideoFrame){if((null==r?void 0:r.rotation)!==void 0&&![0,90,180,270].includes(r.rotation))throw TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if((null==r?void 0:r.timestamp)!==void 0&&!Number.isFinite(null==r?void 0:r.timestamp))throw TypeError("init.timestamp, when provided, must be a number.");if((null==r?void 0:r.duration)!==void 0&&(!Number.isFinite(r.duration)||r.duration<0))throw TypeError("init.duration, when provided, must be a non-negative number.");this._data=t,this._layout=null,this.format=t.format,this.codedWidth=t.displayWidth,this.codedHeight=t.displayHeight,this.rotation=null!=(o=null==r?void 0:r.rotation)?o:0,this.timestamp=null!=(c=null==r?void 0:r.timestamp)?c:t.timestamp/1e6,this.duration=null!=(f=null==r?void 0:r.duration)?f:(null!=(l=t.duration)?l:0)/1e6,this.colorSpace=new y(t.colorSpace)}else if("u">typeof HTMLImageElement&&t instanceof HTMLImageElement||"u">typeof SVGImageElement&&t instanceof SVGImageElement||"u">typeof ImageBitmap&&t instanceof ImageBitmap||"u">typeof HTMLVideoElement&&t instanceof HTMLVideoElement||"u">typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"u">typeof OffscreenCanvas&&t instanceof OffscreenCanvas){if(!r||(void 0===r?"undefined":(0,u._)(r))!=="object")throw TypeError("init must be an object.");if(void 0!==r.rotation&&![0,90,180,270].includes(r.rotation))throw TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(r.timestamp))throw TypeError("init.timestamp must be a number.");if(void 0!==r.duration&&(!Number.isFinite(r.duration)||r.duration<0))throw TypeError("init.duration, when provided, must be a non-negative number.");if("u">typeof VideoFrame)return new e(new VideoFrame(t,{timestamp:Math.trunc(r.timestamp*d.SECOND_TO_MICROSECOND_FACTOR),duration:Math.trunc((null!=(h=r.duration)?h:0)*d.SECOND_TO_MICROSECOND_FACTOR)||void 0}),r);var n,a,i,o,c,l,f,h,v,k,b=0,_=0;if("naturalWidth"in t?(b=t.naturalWidth,_=t.naturalHeight):"videoWidth"in t?(b=t.videoWidth,_=t.videoHeight):"width"in t&&(b=Number(t.width),_=Number(t.height)),!b||!_)throw TypeError("Could not determine dimensions.");var S=new OffscreenCanvas(b,_),T=S.getContext("2d",{alpha:(0,d.isFirefox)(),willReadFrequently:!0});(0,d.assert)(T),T.drawImage(t,0,0),this._data=S,this._layout=null,this.format="RGBX",this.codedWidth=b,this.codedHeight=_,this.rotation=null!=(v=r.rotation)?v:0,this.timestamp=r.timestamp,this.duration=null!=(k=r.duration)?k:0,this.colorSpace=new y({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else throw TypeError("Invalid data type: Must be a BufferSource or CanvasImageSource.");null==p||p.register(this,{type:"video",data:this._data},this)}return(0,o._)(e,[{key:"displayWidth",get:function(){return this.rotation%180==0?this.codedWidth:this.codedHeight}},{key:"displayHeight",get:function(){return this.rotation%180==0?this.codedHeight:this.codedWidth}},{key:"microsecondTimestamp",get:function(){return Math.trunc(d.SECOND_TO_MICROSECOND_FACTOR*this.timestamp)}},{key:"microsecondDuration",get:function(){return Math.trunc(d.SECOND_TO_MICROSECOND_FACTOR*this.duration)}},{key:"hasAlpha",get:function(){return this.format&&this.format.includes("A")}},{key:"clone",value:function(){if(this._closed)throw Error("VideoSample is closed.");return((0,d.assert)(null!==this._data),k(this._data))?new e(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation}):this._data instanceof Uint8Array?((0,d.assert)(this._layout),new e(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})):new e(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation})}},{key:"close",value:function(){this._closed||(null==p||p.unregister(this),k(this._data)?this._data.close():this._data=null,this._closed=!0)}},{key:"allocationSize",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};if(S(e),this._closed)throw Error("VideoSample is closed.");if(null===this.format)throw Error("Cannot get allocation size when format is null. Sorry!");if((0,d.assert)(null!==this._data),!k(this._data)&&(e.colorSpace||e.format&&e.format!==this.format||e.layout||e.rect)){var t=this.toVideoFrame(),r=t.allocationSize(e);return t.close(),r}return k(this._data)?this._data.allocationSize(e):this._data instanceof Uint8Array?this._data.byteLength:this.codedWidth*this.codedHeight*4}},{key:"copyTo",value:function(e){return(0,i._)(function(e){var t,r,n,a,i,s=arguments;return(0,l._)(this,function(o){switch(o.label){case 0:if(t=s.length>1&&void 0!==s[1]?s[1]:{},!(0,d.isAllowSharedBufferSource)(e))throw TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(S(t),this._closed)throw Error("VideoSample is closed.");if(null===this.format)throw Error("Cannot copy video sample data when format is null. Sorry!");if((0,d.assert)(null!==this._data),k(this._data)||!(t.colorSpace||t.format&&t.format!==this.format||t.layout||t.rect))return[3,2];return[4,(r=this.toVideoFrame()).copyTo(e,t)];case 1:return n=o.sent(),r.close(),[2,n];case 2:if(k(this._data))return[2,this._data.copyTo(e,t)];if(this._data instanceof Uint8Array)return(0,d.assert)(this._layout),(0,d.toUint8Array)(e).set(this._data),[2,this._layout];return a=this._data.getContext("2d"),(0,d.assert)(a),i=a.getImageData(0,0,this.codedWidth,this.codedHeight),(0,d.toUint8Array)(e).set(i.data),[2,[{offset:0,stride:4*this.codedWidth}]]}})}).apply(this,arguments)}},{key:"toVideoFrame",value:function(){if(this._closed)throw Error("VideoSample is closed.");return((0,d.assert)(null!==this._data),k(this._data))?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace}):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}},{key:"draw",value:function(e,t,r,n,a,i,s,o,c){var u,l=0,d=0,f=this.displayWidth,h=this.displayHeight,p=0,m=0,g=this.displayWidth,v=this.displayHeight;if(void 0!==i?(l=t,d=r,f=n,h=a,p=i,m=s,void 0!==o?(g=o,v=c):(g=f,v=h)):(p=t,m=r,void 0!==n&&(g=n,v=a)),!("u">typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"u">typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(l))throw TypeError("sx must be a number.");if(!Number.isFinite(d))throw TypeError("sy must be a number.");if(!Number.isFinite(f)||f<0)throw TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(p))throw TypeError("dx must be a number.");if(!Number.isFinite(m))throw TypeError("dy must be a number.");if(!Number.isFinite(g)||g<0)throw TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(v)||v<0)throw TypeError("dHeight must be a non-negative number.");if(this._closed)throw Error("VideoSample is closed.");l=(u=this._rotateSourceRegion(l,d,f,h,this.rotation)).sx,d=u.sy,f=u.sWidth,h=u.sHeight;var y=this.toCanvasImageSource();e.save();var k=p+g/2,b=m+v/2;e.translate(k,b),e.rotate(this.rotation*Math.PI/180);var _=this.rotation%180==0?1:g/v;e.scale(1/_,_),e.drawImage(y,l,d,f,h,-g/2,-v/2,g,v),e.restore()}},{key:"drawWithFit",value:function(e,t){if(!("u">typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"u">typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||(void 0===t?"undefined":(0,u._)(t))!=="object")throw TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&_(t.crop,"options.");var r,n,a,i,s,o,l,d,f,h,p,m,g,v=e.canvas.width,y=e.canvas.height,k=null!=(s=t.rotation)?s:this.rotation,S=(0,c._)(k%180==0?[this.codedWidth,this.codedHeight]:[this.codedHeight,this.codedWidth],2),w=S[0],T=S[1];t.crop&&b(t.crop,w,T);var I=this._rotateSourceRegion(null!=(h=null==(r=t.crop)?void 0:r.left)?h:0,null!=(p=null==(n=t.crop)?void 0:n.top)?p:0,null!=(m=null==(a=t.crop)?void 0:a.width)?m:w,null!=(g=null==(i=t.crop)?void 0:i.height)?g:T,k),x=I.sx,E=I.sy,P=I.sWidth,j=I.sHeight;if("fill"===t.fit)o=0,l=0,d=v,f=y;else{var C=(0,c._)(t.crop?[t.crop.width,t.crop.height]:[w,T],2),A=C[0],B=C[1],M="contain"===t.fit?Math.min(v/A,y/B):Math.max(v/A,y/B);d=A*M,f=B*M,o=(v-d)/2,l=(y-f)/2}e.save();var D=k%180==0?1:d/f;e.translate(v/2,y/2),e.rotate(k*Math.PI/180),e.scale(1/D,D),e.translate(-v/2,-y/2),e.drawImage(this.toCanvasImageSource(),x,E,P,j,o,l,d,f),e.restore()}},{key:"_rotateSourceRegion",value:function(e,t,r,n,a){var i,s,o;return 90===a?(e=(i=[t,this.codedHeight-e-r,n,r])[0],t=i[1],r=i[2],n=i[3]):180===a?(e=(s=[this.codedWidth-e-r,this.codedHeight-t-n])[0],t=s[1]):270===a&&(e=(o=[this.codedWidth-t-n,e,n,r])[0],t=o[1],r=o[2],n=o[3]),{sx:e,sy:t,sWidth:r,sHeight:n}}},{key:"toCanvasImageSource",value:function(){if(this._closed)throw Error("VideoSample is closed.");if((0,d.assert)(null!==this._data),!(this._data instanceof Uint8Array))return this._data;var e=this.toVideoFrame();return queueMicrotask(function(){return e.close()}),e}},{key:"setRotation",value:function(e){if(![0,90,180,270].includes(e))throw TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}},{key:"setTimestamp",value:function(e){if(!Number.isFinite(e))throw TypeError("newTimestamp must be a number.");this.timestamp=e}},{key:"setDuration",value:function(e){if(!Number.isFinite(e)||e<0)throw TypeError("newDuration must be a non-negative number.");this.duration=e}},{key:Symbol.dispose,value:function(){this.close()}}]),e}(),y=function(){"use strict";function e(t){var r,n,a,i;(0,s._)(this,e),this.primaries=null!=(r=null==t?void 0:t.primaries)?r:null,this.transfer=null!=(n=null==t?void 0:t.transfer)?n:null,this.matrix=null!=(a=null==t?void 0:t.matrix)?a:null,this.fullRange=null!=(i=null==t?void 0:t.fullRange)?i:null}return(0,o._)(e,[{key:"toJSON",value:function(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}]),e}(),k=function(e){return"u">typeof VideoFrame&&e instanceof VideoFrame},b=function(e,t,r){e.left=Math.min(e.left,t),e.top=Math.min(e.top,r),e.width=Math.min(e.width,t-e.left),e.height=Math.min(e.height,r-e.top),(0,d.assert)(e.width>=0),(0,d.assert)(e.height>=0)},_=function(e,t){if(!e||(void 0===e?"undefined":(0,u._)(e))!=="object")throw TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw TypeError(t+"crop.height must be a non-negative integer.")},S=function(e){if(!e||(void 0===e?"undefined":(0,u._)(e))!=="object")throw TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!=typeof e.format)throw TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw TypeError("options.layout, when provided, must be an array.");var t=!0,r=!1,n=void 0;try{for(var a,i=e.layout[Symbol.iterator]();!(t=(a=i.next()).done);t=!0){var s=a.value;if(!s||(void 0===s?"undefined":(0,u._)(s))!=="object")throw TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(s.offset)||s.offset<0)throw TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(s.stride)||s.stride<0)throw TypeError("plane.stride must be a non-negative integer.")}}catch(e){r=!0,n=e}finally{try{t||null==i.return||i.return()}finally{if(r)throw n}}}if(void 0!==e.rect){if(!e.rect||"object"!==(0,u._)(e.rect))throw 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 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 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 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 TypeError("options.rect.height, when provided, must be a non-negative integer.")}},w=function(e,t,r){var n=T(e),a=[],i=0,s=!0,o=!1,c=void 0;try{for(var u,l=n[Symbol.iterator]();!(s=(u=l.next()).done);s=!0){var d=u.value,f=Math.ceil(t/d.widthDivisor),h=Math.ceil(r/d.heightDivisor),p=f*d.sampleBytes,m=p*h;a.push({offset:i,stride:p}),i+=m}}catch(e){o=!0,c=e}finally{try{s||null==l.return||l.return()}finally{if(o)throw c}}return a},T=function(e){var t=function(e,t,r,n,a){var i=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:r,heightDivisor:n},{sampleBytes:t,widthDivisor:r,heightDivisor:n}];return a&&i.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),i};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:(0,d.assertNever)(e),(0,d.assert)(!1)}},I=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]),x=function(){"use strict";function e(t){if((0,s._)(this,e),this._closed=!1,A(t)){if(null===t.format)throw TypeError("AudioData with null format is not supported.");this._data=t,this.format=t.format,this.sampleRate=t.sampleRate,this.numberOfFrames=t.numberOfFrames,this.numberOfChannels=t.numberOfChannels,this.timestamp=t.timestamp/1e6,this.duration=t.numberOfFrames/t.sampleRate}else{if(!t||(void 0===t?"undefined":(0,u._)(t))!=="object")throw TypeError("Invalid AudioDataInit: must be an object.");if(!I.has(t.format))throw TypeError("Invalid AudioDataInit: invalid format.");if(!Number.isFinite(t.sampleRate)||t.sampleRate<=0)throw TypeError("Invalid AudioDataInit: sampleRate must be >0.");if(!Number.isInteger(t.numberOfChannels)||0===t.numberOfChannels)throw TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(null==t?void 0:t.timestamp))throw TypeError("init.timestamp must be a number.");var r,n=t.data.byteLength/(E(t.format)*t.numberOfChannels);if(!Number.isInteger(n))throw TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");if(this.format=t.format,this.sampleRate=t.sampleRate,this.numberOfFrames=n,this.numberOfChannels=t.numberOfChannels,this.timestamp=t.timestamp,this.duration=n/t.sampleRate,t.data instanceof ArrayBuffer)r=new Uint8Array(t.data);else if(ArrayBuffer.isView(t.data))r=new Uint8Array(t.data.buffer,t.data.byteOffset,t.data.byteLength);else throw TypeError("Invalid AudioDataInit: data is not a BufferSource.");var a=this.numberOfFrames*this.numberOfChannels*E(this.format);if(r.byteLength<a)throw TypeError("Invalid AudioDataInit: insufficient data size.");this._data=r}null==p||p.register(this,{type:"audio",data:this._data},this)}return(0,o._)(e,[{key:"microsecondTimestamp",get:function(){return Math.trunc(d.SECOND_TO_MICROSECOND_FACTOR*this.timestamp)}},{key:"microsecondDuration",get:function(){return Math.trunc(d.SECOND_TO_MICROSECOND_FACTOR*this.duration)}},{key:"allocationSize",value:function(e){if(!e||(void 0===e?"undefined":(0,u._)(e))!=="object")throw TypeError("options must be an object.");if(!Number.isInteger(e.planeIndex)||e.planeIndex<0)throw TypeError("planeIndex must be a non-negative integer.");if(void 0!==e.format&&!I.has(e.format))throw TypeError("Invalid format.");if(void 0!==e.frameOffset&&(!Number.isInteger(e.frameOffset)||e.frameOffset<0))throw TypeError("frameOffset must be a non-negative integer.");if(void 0!==e.frameCount&&(!Number.isInteger(e.frameCount)||e.frameCount<0))throw TypeError("frameCount must be a non-negative integer.");if(this._closed)throw Error("AudioSample is closed.");var t,r,n=null!=(t=e.format)?t:this.format,a=null!=(r=e.frameOffset)?r:0;if(a>=this.numberOfFrames)throw RangeError("frameOffset out of range");var i=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-a;if(i>this.numberOfFrames-a)throw RangeError("frameCount out of range");var s=E(n),o=P(n);if(o&&e.planeIndex>=this.numberOfChannels||!o&&0!==e.planeIndex)throw RangeError("planeIndex out of range");return(o?i:i*this.numberOfChannels)*s}},{key:"copyTo",value:function(e,t){if(!(0,d.isAllowSharedBufferSource)(e))throw TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||(void 0===t?"undefined":(0,u._)(t))!=="object")throw TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!I.has(t.format))throw TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw TypeError("frameCount must be a non-negative integer.");if(this._closed)throw Error("AudioSample is closed.");var r=t.planeIndex,n=t.format,a=t.frameCount,i=t.frameOffset,s=this.format,o=null!=n?n:this.format;if(!o)throw Error("Destination format not determined");var c=this.numberOfFrames,l=this.numberOfChannels,f=null!=i?i:0;if(f>=c)throw RangeError("frameOffset out of range");var h=void 0!==a?a:c-f;if(h>c-f)throw RangeError("frameCount out of range");var p=E(o),m=P(o);if(m&&r>=l||!m&&0!==r)throw RangeError("planeIndex out of range");var g=m?h:h*l;if(e.byteLength<g*p)throw RangeError("Destination buffer is too small");var v=(0,d.toDataView)(e),y=C(o);if(A(this._data))(0,d.isWebKit)()&&l>2&&o!==s?B(this._data,v,s,o,l,r,f,h):this._data.copyTo(e,{planeIndex:r,frameOffset:f,frameCount:h,format:o});else for(var k=this._data,b=(0,d.toDataView)(k),_=j(s),S=E(s),w=P(s),T=0;T<h;T++)if(m)y(v,T*p,_(b,w?(r*c+(T+f))*S:((T+f)*l+r)*S));else for(var x=0;x<l;x++)y(v,(T*l+x)*p,_(b,w?(x*c+(T+f))*S:((T+f)*l+x)*S))}},{key:"clone",value:function(){if(this._closed)throw Error("AudioSample is closed.");if(!A(this._data))return new e({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp,data:this._data});var t=new e(this._data.clone());return t.setTimestamp(this.timestamp),t}},{key:"close",value:function(){this._closed||(null==p||p.unregister(this),A(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}},{key:"toAudioData",value:function(){if(this._closed)throw Error("AudioSample is closed.");if(!A(this._data))return 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()});if(this._data.timestamp===this.microsecondTimestamp)return this._data.clone();if(P(this.format)){for(var e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels),r=0;r<this.numberOfChannels;r++)this.copyTo(new Uint8Array(t,r*e,e),{planeIndex:r,format:this.format});return new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:t})}var n=new ArrayBuffer(this.allocationSize({planeIndex:0,format:this.format}));return this.copyTo(n,{planeIndex:0,format:this.format}),new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:n})}},{key:"toAudioBuffer",value:function(){if(this._closed)throw Error("AudioSample is closed.");for(var e=new AudioBuffer({numberOfChannels:this.numberOfChannels,length:this.numberOfFrames,sampleRate:this.sampleRate}),t=new Float32Array(this.allocationSize({planeIndex:0,format:"f32-planar"})/4),r=0;r<this.numberOfChannels;r++)this.copyTo(t,{planeIndex:r,format:"f32-planar"}),e.copyToChannel(t,r);return e}},{key:"setTimestamp",value:function(e){if(!Number.isFinite(e))throw TypeError("newTimestamp must be a number.");this.timestamp=e}},{key:Symbol.dispose,value:function(){this.close()}}],[{key:"_fromAudioBuffer",value:function(t,r){var n,a,i,s,o,c,u,d,f;return(0,l._)(this,function(l){switch(l.label){case 0:if(!(t instanceof AudioBuffer))throw TypeError("audioBuffer must be an AudioBuffer.");n=t.numberOfChannels,a=t.sampleRate,i=t.length,s=Math.floor(24e4/n),o=0,c=i,l.label=1;case 1:if(!(c>0))return[3,3];for(f=0,d=new Float32Array(n*(u=Math.min(s,c)));f<n;f++)t.copyFromChannel(d.subarray(f*u,(f+1)*u),f,o);return[4,new e({format:"f32-planar",sampleRate:a,numberOfFrames:u,numberOfChannels:n,timestamp:r+o/a,data:d})];case 2:return l.sent(),o+=u,c-=u,[3,1];case 3:return[2]}})}},{key:"fromAudioBuffer",value:function(t,r){if(!(t instanceof AudioBuffer))throw TypeError("audioBuffer must be an AudioBuffer.");for(var n=t.numberOfChannels,a=t.sampleRate,i=t.length,s=Math.floor(24e4/n),o=0,c=i,u=[];c>0;){for(var l=Math.min(s,c),d=new Float32Array(n*l),f=0;f<n;f++)t.copyFromChannel(d.subarray(f*l,(f+1)*l),f,o);var h=new e({format:"f32-planar",sampleRate:a,numberOfFrames:l,numberOfChannels:n,timestamp:r+o/a,data:d});u.push(h),o+=l,c-=l}return u}}]),e}(),E=function(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 Error("Unknown AudioSampleFormat")}},P=function(e){switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},j=function(e){switch(e){case"u8":case"u8-planar":return function(e,t){return(e.getUint8(t)-128)/128};case"s16":case"s16-planar":return function(e,t){return e.getInt16(t,!0)/32768};case"s32":case"s32-planar":return function(e,t){return e.getInt32(t,!0)/0x80000000};case"f32":case"f32-planar":return function(e,t){return e.getFloat32(t,!0)}}},C=function(e){switch(e){case"u8":case"u8-planar":return function(e,t,r){return e.setUint8(t,(0,d.clamp)((r+1)*127.5,0,255))};case"s16":case"s16-planar":return function(e,t,r){return e.setInt16(t,(0,d.clamp)(Math.round(32767*r),-32768,32767),!0)};case"s32":case"s32-planar":return function(e,t,r){return e.setInt32(t,(0,d.clamp)(Math.round(0x7fffffff*r),-0x80000000,0x7fffffff),!0)};case"f32":case"f32-planar":return function(e,t,r){return e.setFloat32(t,r,!0)}}},A=function(e){return"u">typeof AudioData&&e instanceof AudioData},B=function(e,t,r,n,a,i,s,o){var c=j(r),u=C(n),l=E(r),f=E(n),h=P(r);if(P(n))if(h){var p=new ArrayBuffer(o*l),m=(0,d.toDataView)(p);e.copyTo(p,{planeIndex:i,frameOffset:s,frameCount:o,format:r});for(var g=0;g<o;g++){var v=g*l;u(t,g*f,c(m,v))}}else{var y=new 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0;try{for(D=this.currentSegment.tracks[Symbol.iterator]();!(C=(R=D.next()).done);C=!0)for((F=R.value).cuePoints.sort(function(e,t){return e.time-t.time}),U=0;U<F.cuePoints.length-1;U++)O=F.cuePoints[U],L=F.cuePoints[U+1],O.time===L.time&&(F.cuePoints.splice(U+1,1),U--)}catch(e){B=!0,M=e}finally{try{C||null==D.return||D.return()}finally{if(B)throw M}}N=null,z=-1/0,V=!0,H=!1,G=void 0;try{for(q=this.currentSegment.tracks[Symbol.iterator]();!(V=(W=q.next()).done);V=!0)(K=W.value).cuePoints.length>z&&(z=K.cuePoints.length,N=K)}catch(e){H=!0,G=e}finally{try{V||null==q.return||q.return()}finally{if(H)throw G}}X=!0,Z=!1,Q=void 0;try{for(Y=this.currentSegment.tracks[Symbol.iterator]();!(X=(J=Y.next()).done);X=!0)$=J.value,0===$.cuePoints.length&&($.cuePoints=N.cuePoints)}catch(e){Z=!0,Q=e}finally{try{X||null==Y.return||Y.return()}finally{if(Z)throw Q}}return this.currentSegment=null,[2]}})}).call(this)}},{key:"readCluster",value:function(e,t){return(0,d._)(function(){var r,n,a,i,s,c,u,l,d,f,h,p,m,g,y,b,_,S,w,T,I,E,j,C,A;return(0,k._)(this,function(k){switch(k.label){case 0:if((null==(r=t.lastReadCluster)?void 0:r.elementStartPos)===e)return[2,t.lastReadCluster];if(!((n=this.reader.requestSliceRange(e,P.MIN_HEADER_SIZE,P.MAX_HEADER_SIZE))instanceof Promise))return[3,2];return[4,n];case 1:n=k.sent(),k.label=2;case 2:if((0,x.assert)(n),a=e,i=(0,P.readElementHeader)(n),(0,x.assert)(i),s=i.id,(0,x.assert)(s===P.EBMLId.Cluster),c=i.size,u=n.filePos,void 0!==c)return[3,4];return[4,(0,P.searchForNextElementId)(this.reader,u,P.LEVEL_0_AND_1_EBML_IDS,t.elementEndPos)];case 3:c=k.sent().pos-u,k.label=4;case 4:if(!((l=this.reader.requestSlice(u,c))instanceof Promise))return[3,6];return[4,l];case 5:l=k.sent(),k.label=6;case 6:d={segment:t,elementStartPos:a,elementEndPos:u+c,dataStartPos:u,timestamp:-1,trackData:new Map},this.currentCluster=d,l&&(d.elementEndPos=this.readContiguousElements(l,P.LEVEL_0_AND_1_EBML_IDS)),f=!0,h=!1,p=void 0;try{for(m=d.trackData[Symbol.iterator]();!(f=(g=m.next()).done);f=!0){for(b=(y=(0,v._)(g.value,2)[1]).track,(0,x.assert)(y.blocks.length>0),_=!1,S=0;S<y.blocks.length;S++)w=y.blocks[S],w.timestamp+=d.timestamp,_||(_=w.lacing!==o.None);for(T=0,y.presentationTimestamps=y.blocks.map(function(e,t){return{timestamp:e.timestamp,blockIndex:t}}).sort(function(e,t){return e.timestamp-t.timestamp});T<y.presentationTimestamps.length;T++)I=y.presentationTimestamps[T],E=y.blocks[I.blockIndex],null===y.firstKeyFrameTimestamp&&E.isKeyFrame&&(y.firstKeyFrameTimestamp=E.timestamp),T<y.presentationTimestamps.length-1?E.duration=y.presentationTimestamps[T+1].timestamp-E.timestamp:0===E.duration&&null!=b.defaultDuration&&E.lacing===o.None&&(E.duration=b.defaultDuration);_&&(this.expandLacedBlocks(y.blocks,b),y.presentationTimestamps=y.blocks.map(function(e,t){return{timestamp:e.timestamp,blockIndex:t}}).sort(function(e,t){return e.timestamp-t.timestamp})),j=y.blocks[y.presentationTimestamps[0].blockIndex],C=y.blocks[(0,x.last)(y.presentationTimestamps).blockIndex],y.startTimestamp=j.timestamp,y.endTimestamp=C.timestamp+C.duration,A=(0,x.binarySearchLessOrEqual)(b.clusterPositionCache,y.startTimestamp,function(e){return e.startTimestamp}),(-1===A||b.clusterPositionCache[A].elementStartPos!==a)&&b.clusterPositionCache.splice(A+1,0,{elementStartPos:d.elementStartPos,startTimestamp:y.startTimestamp})}}catch(e){h=!0,p=e}finally{try{f||null==m.return||m.return()}finally{if(h)throw p}}return t.lastReadCluster=d,[2,d]}})}).call(this)}},{key:"getTrackDataInCluster",value:function(e,t){var r=e.trackData.get(t);if(!r){var n=e.segment.tracks.find(function(e){return e.id===t});if(!n)return null;r={track:n,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,r)}return r}},{key:"expandLacedBlocks",value:function(e,t){for(var r=0;r<e.length;r++){var n,a=e[r];if(a.lacing!==o.None){a.decoded||(a.data=this.decodeBlockData(t,a.data),a.decoded=!0);var i=C.FileSlice.tempFromBytes(a.data),s=[],c=(0,C.readU8)(i)+1;switch(a.lacing){case o.Xiph:for(var u=0,l=0;l<c-1;l++)for(var d=0;i.bufferPos<i.length;){var f=(0,C.readU8)(i);if(d+=f,f<255){s.push(d),u+=d;break}}s.push(i.length-(i.bufferPos+u));break;case o.FixedSize:for(var h=Math.floor((i.length-1)/c),p=0;p<c;p++)s.push(h);break;case o.Ebml:var m=(0,P.readVarInt)(i);(0,x.assert)(null!==m);var g=m;s.push(g);for(var v=g,y=1;y<c-1;y++){var k=i.bufferPos,b=(0,P.readVarInt)(i);(0,x.assert)(null!==b),g+=b-((1<<7*(i.bufferPos-k)-1)-1),s.push(g),v+=g}s.push(i.length-(i.bufferPos+v));break;default:(0,x.assert)(!1)}(0,x.assert)(s.length===c),e.splice(r,1);for(var _=a.duration||c*(null!=(n=t.defaultDuration)?n:0),S=0;S<c;S++){var w=s[S],T=(0,C.readBytes)(i,w),I=a.timestamp+_*S/c,E=_/c;e.splice(r+S,0,{timestamp:I,duration:E,isKeyFrame:a.isKeyFrame,data:T,lacing:o.None,decoded:!0,mainAdditional:a.mainAdditional})}r+=c,r--}}}},{key:"loadSegmentMetadata",value:function(e){return(0,d._)(function(){var t,r,n,a,i,s,o,c,u,l,d;return(0,k._)(this,function(f){switch(f.label){case 0:t=!0,r=!1,n=void 0,f.label=1;case 1:f.trys.push([1,9,10,11]),a=e.seekEntries[Symbol.iterator](),f.label=2;case 2:if(t=(i=a.next()).done)return[3,8];if(((s=i.value).id!==P.EBMLId.Tags||e.tagsSeen)&&(s.id!==P.EBMLId.Attachments||e.attachmentsSeen))return[3,7];if(!((o=this.reader.requestSliceRange(e.dataStartPos+s.segmentPosition,P.MIN_HEADER_SIZE,P.MAX_HEADER_SIZE))instanceof Promise))return[3,4];return[4,o];case 3:o=f.sent(),f.label=4;case 4:if(!o||!(c=(0,P.readElementHeader)(o))||c.id!==s.id)return[3,7];if(u=c.size,(0,P.assertDefinedSize)(u),(0,x.assert)(!this.currentSegment),this.currentSegment=e,!((l=this.reader.requestSlice(o.filePos,u))instanceof Promise))return[3,6];return[4,l];case 5:l=f.sent(),f.label=6;case 6:l&&this.readContiguousElements(l),this.currentSegment=null,s.id===P.EBMLId.Tags?e.tagsSeen=!0:s.id===P.EBMLId.Attachments&&(e.attachmentsSeen=!0),f.label=7;case 7:return t=!0,[3,2];case 8:return[3,11];case 9:return d=f.sent(),r=!0,n=d,[3,11];case 10:try{t||null==a.return||a.return()}finally{if(r)throw n}return[7];case 11:return[2]}})}).call(this)}},{key:"readContiguousElements",value:function(e,t){for(;e.remainingLength>=P.MIN_HEADER_SIZE;){var r=e.filePos;if(!this.traverseElement(e,t))return r}return e.filePos}},{key:"traverseElement",value:function(e,t){var r,n,a,i,s=(0,P.readElementHeader)(e);if(!s||t&&t.includes(s.id))return!1;var o=s.id,l=s.size,d=e.filePos;switch((0,P.assertDefinedSize)(l),o){case P.EBMLId.DocType:this.isWebM="webm"===(0,P.readAsciiString)(e,l);break;case P.EBMLId.Seek:if(!this.currentSegment)break;var f={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(f),this.readContiguousElements(e.slice(d,l)),(-1===f.id||-1===f.segmentPosition)&&this.currentSegment.seekEntries.pop();break;case P.EBMLId.SeekID:var h,p=null==(h=this.currentSegment)?void 0:h.seekEntries[this.currentSegment.seekEntries.length-1];if(!p)break;p.id=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.SeekPosition:var m,v=null==(m=this.currentSegment)?void 0:m.seekEntries[this.currentSegment.seekEntries.length-1];if(!v)break;v.segmentPosition=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=(0,P.readUnsignedInt)(e,l),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case P.EBMLId.Duration:if(!this.currentSegment)break;this.currentSegment.duration=(0,P.readFloat)(e,l);break;case P.EBMLId.TrackEntry:if(!this.currentSegment||(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:(0,g._)({},I.DEFAULT_TRACK_DISPOSITION),inputTrack:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:x.UNDETERMINED_LANGUAGE,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(d,l)),!this.currentTrack))break;if(this.currentTrack.decodingInstructions.some(function(e){var t;return(null==(t=e.data)?void 0:t.type)!=="decompress"||e.scope!==c.Block||e.data.algorithm!==u.HeaderStripping})&&(console.warn("Track #".concat(this.currentTrack.id," has an unsupported content encoding; dropping.")),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){var y=this.currentTrack.codecId.indexOf("/"),k=-1===y?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,y);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){this.currentTrack.codecId===P.CODEC_STRING_MAP.avc?(this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===P.CODEC_STRING_MAP.hevc?(this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):k===P.CODEC_STRING_MAP.vp8?this.currentTrack.info.codec="vp8":k===P.CODEC_STRING_MAP.vp9?this.currentTrack.info.codec="vp9":k===P.CODEC_STRING_MAP.av1&&(this.currentTrack.info.codec="av1");var b=this.currentTrack,_=new(0,T.InputVideoTrack)(this.input,new D(b));this.currentTrack.inputTrack=_,this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type&&-1!==this.currentTrack.info.numberOfChannels&&-1!==this.currentTrack.info.sampleRate){k===P.CODEC_STRING_MAP.aac?(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===P.CODEC_STRING_MAP.mp3?this.currentTrack.info.codec="mp3":k===P.CODEC_STRING_MAP.opus?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=S.OPUS_SAMPLE_RATE):k===P.CODEC_STRING_MAP.vorbis?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):k===P.CODEC_STRING_MAP.flac?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):"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"));var w=this.currentTrack,E=new(0,T.InputAudioTrack)(this.input,new R(w));this.currentTrack.inputTrack=E,this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case P.EBMLId.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.TrackType:if(!this.currentTrack)break;var j=(0,P.readUnsignedInt)(e,l);1===j?this.currentTrack.info={type:"video",width:-1,height:-1,rotation:0,codec:null,codecDescription:null,colorSpace:null,alphaMode:!1}:2===j&&(this.currentTrack.info={type:"audio",numberOfChannels:-1,sampleRate:-1,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null});break;case P.EBMLId.FlagEnabled:if(!this.currentTrack)break;(0,P.readUnsignedInt)(e,l)||(this.currentTrack=null);break;case P.EBMLId.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=(0,P.readAsciiString)(e,l);break;case P.EBMLId.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=(0,C.readBytes)(e,l);break;case P.EBMLId.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.Name:if(!this.currentTrack)break;this.currentTrack.name=(0,P.readUnicodeString)(e,l);break;case P.EBMLId.Language:if(!this.currentTrack||this.currentTrack.languageCode!==x.UNDETERMINED_LANGUAGE)break;this.currentTrack.languageCode=(0,P.readAsciiString)(e,l),(0,x.isIso639Dash2LanguageCode)(this.currentTrack.languageCode)||(this.currentTrack.languageCode=x.UNDETERMINED_LANGUAGE);break;case P.EBMLId.LanguageBCP47:if(!this.currentTrack)break;var A=(0,P.readAsciiString)(e,l).split("-")[0];A?this.currentTrack.languageCode=A:this.currentTrack.languageCode=x.UNDETERMINED_LANGUAGE;break;case P.EBMLId.Video:if((null==(M=this.currentTrack)||null==(B=M.info)?void 0:B.type)!=="video")break;this.readContiguousElements(e.slice(d,l));break;case P.EBMLId.PixelWidth:if((null==(U=this.currentTrack)||null==(F=U.info)?void 0:F.type)!=="video")break;this.currentTrack.info.width=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.PixelHeight:if((null==(L=this.currentTrack)||null==(O=L.info)?void 0:O.type)!=="video")break;this.currentTrack.info.height=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.AlphaMode:if((null==(z=this.currentTrack)||null==(N=z.info)?void 0:N.type)!=="video")break;this.currentTrack.info.alphaMode=1===(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.Colour:if((null==(H=this.currentTrack)||null==(V=H.info)?void 0:V.type)!=="video")break;this.currentTrack.info.colorSpace={},this.readContiguousElements(e.slice(d,l));break;case P.EBMLId.MatrixCoefficients:if((null==(q=this.currentTrack)||null==(G=q.info)?void 0:G.type)!=="video"||!this.currentTrack.info.colorSpace)break;var B,M,F,U,O,L,N,z,V,H,G,q,W,K=(0,P.readUnsignedInt)(e,l),X=null!=(W=x.MATRIX_COEFFICIENTS_MAP_INVERSE[K])?W:null;this.currentTrack.info.colorSpace.matrix=X;break;case P.EBMLId.Range:if((null==(Q=this.currentTrack)||null==(Z=Q.info)?void 0:Z.type)!=="video"||!this.currentTrack.info.colorSpace)break;this.currentTrack.info.colorSpace.fullRange=2===(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.TransferCharacteristics:if((null==(J=this.currentTrack)||null==(Y=J.info)?void 0:Y.type)!=="video"||!this.currentTrack.info.colorSpace)break;var Z,Q,Y,J,$,ee=(0,P.readUnsignedInt)(e,l),et=null!=($=x.TRANSFER_CHARACTERISTICS_MAP_INVERSE[ee])?$:null;this.currentTrack.info.colorSpace.transfer=et;break;case P.EBMLId.Primaries:if((null==(en=this.currentTrack)||null==(er=en.info)?void 0:er.type)!=="video"||!this.currentTrack.info.colorSpace)break;var er,en,ea,ei=(0,P.readUnsignedInt)(e,l),es=null!=(ea=x.COLOR_PRIMARIES_MAP_INVERSE[ei])?ea:null;this.currentTrack.info.colorSpace.primaries=es;break;case P.EBMLId.Projection:if((null==(ec=this.currentTrack)||null==(eo=ec.info)?void 0:eo.type)!=="video")break;this.readContiguousElements(e.slice(d,l));break;case P.EBMLId.ProjectionPoseRoll:if((null==(el=this.currentTrack)||null==(eu=el.info)?void 0:eu.type)!=="video")break;var eo,ec,eu,el,ed=(0,P.readFloat)(e,l);try{this.currentTrack.info.rotation=(0,x.normalizeRotation)(-ed)}catch(e){}break;case P.EBMLId.Audio:if((null==(ep=this.currentTrack)||null==(eh=ep.info)?void 0:eh.type)!=="audio")break;this.readContiguousElements(e.slice(d,l));break;case P.EBMLId.SamplingFrequency:if((null==(eg=this.currentTrack)||null==(em=eg.info)?void 0:em.type)!=="audio")break;this.currentTrack.info.sampleRate=(0,P.readFloat)(e,l);break;case P.EBMLId.Channels:if((null==(ey=this.currentTrack)||null==(ev=ey.info)?void 0:ev.type)!=="audio")break;this.currentTrack.info.numberOfChannels=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.BitDepth:if((null==(eb=this.currentTrack)||null==(ek=eb.info)?void 0:ek.type)!=="audio")break;this.currentTrack.info.bitDepth=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(d,l)),this.currentCueTime=null;break;case P.EBMLId.CueTime:this.currentCueTime=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.CueTrackPositions:if(null===this.currentCueTime)break;(0,x.assert)(this.currentSegment);var ef={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(ef),this.readContiguousElements(e.slice(d,l)),(-1===ef.trackId||-1===ef.clusterPosition)&&this.currentSegment.cuePoints.pop();break;case P.EBMLId.CueTrack:var eh,ep,em,eg,ev,ey,ek,eb,e_,eS=null==(e_=this.currentSegment)?void 0:e_.cuePoints[this.currentSegment.cuePoints.length-1];if(!eS)break;eS.trackId=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.CueClusterPosition:var ew,eT=null==(ew=this.currentSegment)?void 0:ew.cuePoints[this.currentSegment.cuePoints.length-1];if(!eT)break;(0,x.assert)(this.currentSegment),eT.clusterPosition=this.currentSegment.dataStartPos+(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.SimpleBlock:if(!this.currentCluster)break;var eI,ex=(0,P.readVarInt)(e);if(null===ex)break;var eE=this.getTrackDataInCluster(this.currentCluster,ex);if(!eE)break;var eP=(0,C.readI16Be)(e),ej=(0,C.readU8)(e),eC=!!(128&ej);(null==(eI=eE.track.info)?void 0:eI.type)==="audio"&&eE.track.info.codec&&(eC=!0);var eA=(0,C.readBytes)(e,l-(e.filePos-d)),eB=eE.track.decodingInstructions.length>0;eE.blocks.push({timestamp:eP,duration:0,isKeyFrame:eC,data:eA,lacing:ej>>1&3,decoded:!eB,mainAdditional:null});break;case P.EBMLId.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(d,l)),this.currentBlock=null;break;case P.EBMLId.Block:if(!this.currentCluster)break;var eM=(0,P.readVarInt)(e);if(null===eM)break;var eD=this.getTrackDataInCluster(this.currentCluster,eM);if(!eD)break;var eR=(0,C.readI16Be)(e),eF=(0,C.readU8)(e),eU=(0,C.readBytes)(e,l-(e.filePos-d)),eO=eD.track.decodingInstructions.length>0;this.currentBlock={timestamp:eR,duration:0,isKeyFrame:!0,data:eU,lacing:eF>>1&3,decoded:!eO,mainAdditional:null},eD.blocks.push(this.currentBlock);break;case P.EBMLId.BlockAdditions:this.readContiguousElements(e.slice(d,l));break;case P.EBMLId.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(d,l)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case P.EBMLId.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=(0,C.readBytes)(e,l);break;case P.EBMLId.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case P.EBMLId.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(d,l));break;case P.EBMLId.Targets:this.readContiguousElements(e.slice(d,l));break;case P.EBMLId.TargetTypeValue:50!==(0,P.readUnsignedInt)(e,l)&&(this.currentTagTargetIsMovie=!1);break;case P.EBMLId.TagTrackUID:case P.EBMLId.TagEditionUID:case P.EBMLId.TagChapterUID:case P.EBMLId.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case P.EBMLId.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(d,l));break;case P.EBMLId.TagName:this.currentSimpleTagName=(0,P.readUnicodeString)(e,l);break;case P.EBMLId.TagString:if(!this.currentSimpleTagName)break;var eL=(0,P.readUnicodeString)(e,l);this.processTagValue(this.currentSimpleTagName,eL);break;case P.EBMLId.TagBinary:if(!this.currentSimpleTagName)break;var eN=(0,C.readBytes)(e,l);this.processTagValue(this.currentSimpleTagName,eN);break;case P.EBMLId.AttachedFile:if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(d,l));var ez=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(null!=ez.raw||(ez.raw={}),ez.raw[this.currentAttachedFile.fileUid.toString()]=new(0,I.AttachedFile)(this.currentAttachedFile.fileData,null!=(eH=this.currentAttachedFile.fileMediaType)?eH:void 0,null!=(eG=this.currentAttachedFile.fileName)?eG:void 0,null!=(eq=this.currentAttachedFile.fileDescription)?eq:void 0)),(null==(eV=this.currentAttachedFile.fileMediaType)?void 0:eV.startsWith("image/"))&&this.currentAttachedFile.fileData){var eV,eH,eG,eq,eW,eK,eX=this.currentAttachedFile.fileName,eZ="unknown";if(eX){var eQ=eX.toLowerCase();eQ.startsWith("cover.")?eZ="coverFront":eQ.startsWith("back.")&&(eZ="coverBack")}null!=ez.images||(ez.images=[]),ez.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:eZ,name:null!=(eW=this.currentAttachedFile.fileName)?eW:void 0,description:null!=(eK=this.currentAttachedFile.fileDescription)?eK:void 0})}this.currentAttachedFile=null;break;case P.EBMLId.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=(0,P.readUnsignedBigInt)(e,l);break;case P.EBMLId.FileName:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=(0,P.readUnicodeString)(e,l);break;case P.EBMLId.FileMediaType:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=(0,P.readAsciiString)(e,l);break;case P.EBMLId.FileData:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=(0,C.readBytes)(e,l);break;case P.EBMLId.FileDescription:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=(0,P.readUnicodeString)(e,l);break;case P.EBMLId.ContentEncodings:if(!this.currentTrack)break;this.readContiguousElements(e.slice(d,l)),this.currentTrack.decodingInstructions.sort(function(e,t){return t.order-e.order});break;case P.EBMLId.ContentEncoding:this.currentDecodingInstruction={order:0,scope:c.Block,data:null},this.readContiguousElements(e.slice(d,l)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case P.EBMLId.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:u.Zlib,settings:null},this.readContiguousElements(e.slice(d,l));break;case P.EBMLId.ContentCompAlgo:if((null==(n=this.currentDecodingInstruction)||null==(r=n.data)?void 0:r.type)!=="decompress")break;this.currentDecodingInstruction.data.algorithm=(0,P.readUnsignedInt)(e,l);break;case P.EBMLId.ContentCompSettings:if((null==(i=this.currentDecodingInstruction)||null==(a=i.data)?void 0:a.type)!=="decompress")break;this.currentDecodingInstruction.data.settings=(0,C.readBytes)(e,l);break;case P.EBMLId.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=d+l,!0}},{key:"decodeBlockData",value:function(e,t){(0,x.assert)(e.decodingInstructions.length>0);var r=t,n=!0,a=!1,i=void 0;try{for(var s,o=e.decodingInstructions[Symbol.iterator]();!(n=(s=o.next()).done);n=!0){var c=s.value;if((0,x.assert)(c.data),"decompress"===c.data.type&&c.data.algorithm===u.HeaderStripping&&c.data.settings&&c.data.settings.length>0){var l=c.data.settings,d=new Uint8Array(l.length+r.length);d.set(l,0),d.set(r,l.length),r=d}}}catch(e){a=!0,i=e}finally{try{n||null==o.return||o.return()}finally{if(a)throw i}}return r}},{key:"processTagValue",value:function(e,t){if(null==(n=this.currentSegment)?void 0:n.metadataTags){var r=this.currentSegment.metadataTags;if(null!=r.raw||(r.raw={}),null!=(a=r.raw)[e]||(a[e]=t),"string"==typeof t)switch(e.toLowerCase()){case"title":null!=r.title||(r.title=t);break;case"description":null!=r.description||(r.description=t);break;case"artist":null!=r.artist||(r.artist=t);break;case"album":null!=r.album||(r.album=t);break;case"album_artist":null!=r.albumArtist||(r.albumArtist=t);break;case"genre":null!=r.genre||(r.genre=t);break;case"comment":null!=r.comment||(r.comment=t);break;case"lyrics":null!=r.lyrics||(r.lyrics=t);break;case"date":var n,a,i=new Date(t);Number.isNaN(i.getTime())||null!=r.date||(r.date=i);break;case"track_number":case"part_number":var s=t.split("/"),o=Number.parseInt(s[0],10),c=s[1]&&Number.parseInt(s[1],10);Number.isInteger(o)&&o>0&&(null!=r.trackNumber||(r.trackNumber=o)),c&&Number.isInteger(c)&&c>0&&(null!=r.tracksTotal||(r.tracksTotal=c));break;case"disc_number":case"disc":var u=t.split("/"),l=Number.parseInt(u[0],10),d=u[1]&&Number.parseInt(u[1],10);Number.isInteger(l)&&l>0&&(null!=r.discNumber||(r.discNumber=l)),d&&Number.isInteger(d)&&d>0&&(null!=r.discsTotal||(r.discsTotal=d))}}}}]),t}(w.Demuxer),M=function(){"use strict";function e(t){(0,h._)(this,e),this.internalTrack=t,this.packetToClusterLocation=new WeakMap}return(0,p._)(e,[{key:"getId",value:function(){return this.internalTrack.id}},{key:"getNumber",value:function(){var e=this.internalTrack.demuxer,t=this.internalTrack.inputTrack.type,r=0,n=!0,a=!1,i=void 0,s=!0,o=!1,c=void 0;try{for(var u,l=e.segments[Symbol.iterator]();!(s=(u=l.next()).done);s=!0){var d=u.value;try{for(var f,h=d.tracks[Symbol.iterator]();!(n=(f=h.next()).done);n=!0){var p=f.value;if(p.inputTrack.type===t&&r++,p===this.internalTrack)break}}catch(e){a=!0,i=e}finally{try{n||null==h.return||h.return()}finally{if(a)throw i}}}}catch(e){o=!0,c=e}finally{try{s||null==l.return||l.return()}finally{if(o)throw c}}return r}},{key:"getCodec",value:function(){throw Error("Not implemented on base class.")}},{key:"getInternalCodecId",value:function(){return this.internalTrack.codecId}},{key:"computeDuration",value:function(){return(0,d._)(function(){var e,t,r;return(0,k._)(this,function(n){switch(n.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(t=null==(e=n.sent())?void 0:e.timestamp)?t:0)+(null!=(r=null==e?void 0:e.duration)?r:0)]}})}).call(this)}},{key:"getName",value:function(){return this.internalTrack.name}},{key:"getLanguageCode",value:function(){return this.internalTrack.languageCode}},{key:"getFirstTimestamp",value:function(){return(0,d._)(function(){var e,t;return(0,k._)(this,function(r){switch(r.label){case 0:return[4,this.getFirstPacket({metadataOnly:!0})];case 1:return[2,null!=(t=null==(e=r.sent())?void 0:e.timestamp)?t:0]}})}).call(this)}},{key:"getTimeResolution",value:function(){return this.internalTrack.segment.timestampFactor}},{key:"getDisposition",value:function(){return this.internalTrack.disposition}},{key:"getFirstPacket",value:function(e){return(0,d._)(function(){var t;return(0,k._)(this,function(r){return t=this,[2,this.performClusterLookup(null,function(e){return e.trackData.get(t.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,e)]})}).call(this)}},{key:"intoTimescale",value:function(e){return(0,x.roundIfAlmostInteger)(e*this.internalTrack.segment.timestampFactor)}},{key:"getPacket",value:function(e,t){return(0,d._)(function(){var r,n;return(0,k._)(this,function(a){return r=this,n=this.intoTimescale(e),[2,this.performClusterLookup(null,function(e){var t=e.trackData.get(r.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};var a=(0,x.binarySearchLessOrEqual)(t.presentationTimestamps,n,function(e){return e.timestamp});return{blockIndex:-1!==a?t.presentationTimestamps[a].blockIndex:-1,correctBlockFound:-1!==a&&n<t.endTimestamp}},n,n,t)]})}).call(this)}},{key:"getNextPacket",value:function(e,t){return(0,d._)(function(){var r,n;return(0,k._)(this,function(a){if(r=this,void 0===(n=this.packetToClusterLocation.get(e)))throw Error("Packet was not created from this track.");return[2,this.performClusterLookup(n.cluster,function(e){if(e===n.cluster){var t=e.trackData.get(r.internalTrack.id);if(n.blockIndex+1<t.blocks.length)return{blockIndex:n.blockIndex+1,correctBlockFound:!0}}else if(e.trackData.get(r.internalTrack.id))return{blockIndex:0,correctBlockFound:!0};return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)]})}).call(this)}},{key:"getKeyPacket",value:function(e,t){return(0,d._)(function(){var r,n;return(0,k._)(this,function(a){return r=this,n=this.intoTimescale(e),[2,this.performClusterLookup(null,function(e){var t=e.trackData.get(r.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};var a=(0,x.findLastIndex)(t.presentationTimestamps,function(e){return t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=n});return{blockIndex:-1!==a?t.presentationTimestamps[a].blockIndex:-1,correctBlockFound:-1!==a&&n<t.endTimestamp}},n,n,t)]})}).call(this)}},{key:"getNextKeyPacket",value:function(e,t){return(0,d._)(function(){var r,n;return(0,k._)(this,function(a){if(r=this,void 0===(n=this.packetToClusterLocation.get(e)))throw Error("Packet was not created from this track.");return[2,this.performClusterLookup(n.cluster,function(e){if(e===n.cluster){var t=e.trackData.get(r.internalTrack.id).blocks.findIndex(function(e,t){return e.isKeyFrame&&t>n.blockIndex});if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{var a=e.trackData.get(r.internalTrack.id);if(a&&null!==a.firstKeyFrameTimestamp){var i=a.blocks.findIndex(function(e){return e.isKeyFrame});return(0,x.assert)(-1!==i),{blockIndex:i,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)]})}).call(this)}},{key:"fetchPacketInCluster",value:function(e,t,r){return(0,d._)(function(){var n,a,i,s,o,c,u;return(0,k._)(this,function(l){return -1===t?[2,null]:(a=e.trackData.get(this.internalTrack.id).blocks[t],(0,x.assert)(a),a.decoded||(a.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,a.data),a.decoded=!0),i=r.metadataOnly?E.PLACEHOLDER_DATA:a.data,s=a.timestamp/this.internalTrack.segment.timestampFactor,o=a.duration/this.internalTrack.segment.timestampFactor,c={},a.mainAdditional&&(null==(n=this.internalTrack.info)?void 0:n.type)==="video"&&this.internalTrack.info.alphaMode&&(c.alpha=r.metadataOnly?E.PLACEHOLDER_DATA:a.mainAdditional,c.alphaByteLength=a.mainAdditional.byteLength),u=new(0,E.EncodedPacket)(i,a.isKeyFrame?"key":"delta",s,o,e.dataStartPos+t,a.data.byteLength,c),this.packetToClusterLocation.set(u,{cluster:e,blockIndex:t}),[2,u])})}).call(this)}},{key:"performClusterLookup",value:function(e,t,r,n,a){return(0,d._)(function(){var i,s,o,c,u,l,d,f,h,p,m,g,v,y,b,_,S,w,T,I,E,j,C,A,B,M,D,R,F,U,O,L;return(0,k._)(this,function(k){switch(k.label){case 0:if(s=(i=this.internalTrack).demuxer,o=i.segment,c=null,u=null,l=-1,e){if(f=(d=t(e)).blockIndex,d.correctBlockFound)return[2,this.fetchPacketInCluster(e,f,a)];-1!==f&&(u=e,l=f)}p=-1!==(h=(0,x.binarySearchLessOrEqual)(this.internalTrack.cuePoints,r,function(e){return e.time}))?this.internalTrack.cuePoints[h]:null,g=-1!==(m=(0,x.binarySearchLessOrEqual)(this.internalTrack.clusterPositionCache,r,function(e){return e.startTimestamp}))?this.internalTrack.clusterPositionCache[m]:null,b=Math.max(null!=(v=null==p?void 0:p.clusterPosition)?v:0,null!=(y=null==g?void 0:g.elementStartPos)?y:0)||null,e?null===b||e.elementStartPos>=b?(_=e.elementEndPos,c=e):_=b:_=null!=b?b:o.clusterSeekStartPos,k.label=1;case 1:if(!(null===o.elementEndPos||_<=o.elementEndPos-P.MIN_HEADER_SIZE)||c&&(S=c.trackData.get(this.internalTrack.id))&&S.startTimestamp>n)return[3,13];if(!((w=s.reader.requestSliceRange(_,P.MIN_HEADER_SIZE,P.MAX_HEADER_SIZE))instanceof Promise))return[3,3];return[4,w];case 2:w=k.sent(),k.label=3;case 3:if(!w)return[3,13];if(T=_,!(!(I=(0,P.readElementHeader)(w))||!P.LEVEL_1_EBML_IDS.includes(I.id)&&I.id!==P.EBMLId.Void))return[3,5];return[4,(0,P.resync)(s.reader,T,P.LEVEL_1_EBML_IDS,Math.min(null!=(E=o.elementEndPos)?E:1/0,T+0xa00000))];case 4:if(j=k.sent())return _=j,[3,1];return[3,13];case 5:if(C=I.id,A=I.size,B=w.filePos,C!==P.EBMLId.Cluster)return[3,7];return[4,s.readCluster(T,o)];case 6:if(A=(c=k.sent()).elementEndPos-B,D=(M=t(c)).blockIndex,M.correctBlockFound)return[2,this.fetchPacketInCluster(c,D,a)];-1!==D&&(u=c,l=D),k.label=7;case 7:if(void 0!==A)return[3,9];return(0,x.assert)(C!==P.EBMLId.Cluster),[4,(0,P.searchForNextElementId)(s.reader,B,P.LEVEL_0_AND_1_EBML_IDS,o.elementEndPos)];case 8:A=k.sent().pos-B,k.label=9;case 9:if(R=B+A,null!==o.elementEndPos)return[3,12];if(!((F=s.reader.requestSliceRange(R,P.MIN_HEADER_SIZE,P.MAX_HEADER_SIZE))instanceof Promise))return[3,11];return[4,F];case 10:F=k.sent(),k.label=11;case 11:if(!F)return[3,13];if((0,P.readElementId)(F)===P.EBMLId.Segment)return o.elementEndPos=R,[3,13];k.label=12;case 12:return _=R,[3,1];case 13:if(p&&(!u||u.elementStartPos<p.clusterPosition))return U=this.internalTrack.cuePoints[h-1],(0,x.assert)(!U||U.time<p.time),L=null!=(O=null==U?void 0:U.time)?O:-1/0,[2,this.performClusterLookup(null,t,L,n,a)];if(u)return[2,this.fetchPacketInCluster(u,l,a)];return[2,null]}})}).call(this)}}]),e}(),D=function(e){"use strict";function t(e){var r;return(0,h._)(this,t),(r=(0,f._)(this,t,[e])).decoderConfigPromise=null,r.internalTrack=e,r}return(0,m._)(t,e),(0,p._)(t,[{key:"getCodec",value:function(){return this.internalTrack.info.codec}},{key:"getCodedWidth",value:function(){return this.internalTrack.info.width}},{key:"getCodedHeight",value:function(){return this.internalTrack.info.height}},{key:"getRotation",value:function(){return this.internalTrack.info.rotation}},{key:"getColorSpace",value:function(){return(0,d._)(function(){var e,t,r,n;return(0,k._)(this,function(a){return[2,{primaries:null==(e=this.internalTrack.info.colorSpace)?void 0:e.primaries,transfer:null==(t=this.internalTrack.info.colorSpace)?void 0:t.transfer,matrix:null==(r=this.internalTrack.info.colorSpace)?void 0:r.matrix,fullRange:null==(n=this.internalTrack.info.colorSpace)?void 0:n.fullRange}]})}).call(this)}},{key:"canBeTransparent",value:function(){return(0,d._)(function(){return(0,k._)(this,function(e){return[2,this.internalTrack.info.alphaMode]})}).call(this)}},{key:"getDecoderConfig",value:function(){return(0,d._)(function(){var e,t;return(0,k._)(this,function(r){return(e=this,this.internalTrack.info.codec)?[2,null!=(t=this.decoderConfigPromise)?t:this.decoderConfigPromise=(0,d._)(function(){var e,t,r;return(0,k._)(this,function(n){switch(n.label){case 0:if(e=null,!("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription))return[3,2];return[4,this.getFirstPacket({})];case 1:e=n.sent(),n.label=2;case 2:return[2,{codec:(0,S.extractVideoCodecString)({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&&e?(0,_.extractAvcDecoderConfigurationRecord)(e.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&e?(0,_.extractHevcDecoderConfigurationRecord)(e.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&e?(0,_.extractVp9CodecInfoFromPacket)(e.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&e?(0,_.extractAv1CodecInfoFromPacket)(e.data):null}),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(t=this.internalTrack.info.codecDescription)?t:void 0,colorSpace:null!=(r=this.internalTrack.info.colorSpace)?r:void 0}]}})}).call(e)]:[2,null]})}).call(this)}}]),t}(M),R=function(e){"use 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i=e("@swc/helpers/cjs/_to_consumable_array.cjs"),s=function(e){var t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");if(e.codecStrings.length>0){var r=(0,i._)(new Set(e.codecStrings.filter(Boolean)));t+='; codecs="'.concat(r.join(", "),'"')}return t}},{"@swc/helpers/cjs/_to_consumable_array.cjs":"i81N6","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],ifShX:[function(e,t,r,n){var a=e("@parcel/transformer-js/src/esmodule-helpers.js");a.defineInteropFlag(r),a.export(r,"Mp3Demuxer",function(){return _});var i=e("@swc/helpers/cjs/_async_to_generator.cjs"),s=e("@swc/helpers/cjs/_call_super.cjs"),o=e("@swc/helpers/cjs/_class_call_check.cjs"),c=e("@swc/helpers/cjs/_create_class.cjs"),u=e("@swc/helpers/cjs/_inherits.cjs"),l=e("@swc/helpers/cjs/_object_spread.cjs"),d=e("@swc/helpers/cjs/_ts_generator.cjs"),f=e("../demuxer.js"),h=e("../input-track.js"),p=e("../metadata.js"),m=e("../misc.js"),g=e("../packet.js"),v=e("../../shared/mp3-misc.js"),y=e("../id3.js"),k=e("./mp3-reader.js"),b=e("../reader.js"),_=function(e){"use strict";function t(e){var r;return(0,o._)(this,t),(r=(0,s._)(this,t,[e])).metadataPromise=null,r.firstFrameHeader=null,r.loadedSamples=[],r.metadataTags=null,r.tracks=[],r.readingMutex=new(0,m.AsyncMutex),r.lastSampleLoaded=!1,r.lastLoadedPos=0,r.nextTimestampInSamples=0,r.reader=e._reader,r}return(0,u._)(t,e),(0,c._)(t,[{key:"readMetadata",value:function(){return(0,i._)(function(){var e,t;return(0,d._)(this,function(r){return 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4:return[4,(0,k.readNextMp3FrameHeader)(this.reader,this.lastLoadedPos,this.reader.fileSize)];case 5:if(!(r=u.sent()))return this.lastSampleLoaded=!0,[2];if(n=r.header,this.lastLoadedPos=r.startPos+n.totalSize-1,a=(0,v.getXingOffset)(n.mpegVersionId,n.channel),!((i=this.reader.requestSlice(r.startPos+a,4))instanceof Promise))return[3,7];return[4,i];case 6:i=u.sent(),u.label=7;case 7:if(i&&((s=(0,b.readU32Be)(i))===v.XING||s===v.INFO))return[2];return this.firstFrameHeader||(this.firstFrameHeader=n),n.sampleRate!==this.firstFrameHeader.sampleRate&&console.warn("MP3 changed sample rate mid-file: ".concat(this.firstFrameHeader.sampleRate," Hz to ").concat(n.sampleRate," Hz.")+" Might be a bug, so please report this 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11:(0,m.assert)(s),"TAG"===(0,b.readAscii)(s,3)&&(0,y.parseId3V1Tag)(s,this.metadataTags),o.label=12;case 12:return[2,this.metadataTags];case 13:return e(),[7];case 14:return[2]}})}).call(this)}}]),t}(f.Demuxer),S=function(){"use strict";function e(t){(0,o._)(this,e),this.demuxer=t}return(0,c._)(e,[{key:"getId",value:function(){return 1}},{key:"getNumber",value:function(){return 1}},{key:"getFirstTimestamp",value:function(){return(0,i._)(function(){return(0,d._)(this,function(e){return[2,0]})})()}},{key:"getTimeResolution",value:function(){return(0,m.assert)(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}},{key:"computeDuration",value:function(){return(0,i._)(function(){var e,t,r;return(0,d._)(this,function(n){switch(n.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(t=null==(e=n.sent())?void 0:e.timestamp)?t:0)+(null!=(r=null==e?void 0:e.duration)?r:0)]}})}).call(this)}},{key:"getName",value:function(){return null}},{key:"getLanguageCode",value:function(){return m.UNDETERMINED_LANGUAGE}},{key:"getCodec",value:function(){return"mp3"}},{key:"getInternalCodecId",value:function(){return null}},{key:"getNumberOfChannels",value:function(){return(0,m.assert)(this.demuxer.firstFrameHeader),3===this.demuxer.firstFrameHeader.channel?1:2}},{key:"getSampleRate",value:function(){return(0,m.assert)(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}},{key:"getDisposition",value:function(){return(0,l._)({},p.DEFAULT_TRACK_DISPOSITION)}},{key:"getDecoderConfig",value:function(){return(0,i._)(function(){return(0,d._)(this,function(e){return(0,m.assert)(this.demuxer.firstFrameHeader),[2,{codec:"mp3",numberOfChannels:3===this.demuxer.firstFrameHeader.channel?1:2,sampleRate:this.demuxer.firstFrameHeader.sampleRate}]})}).call(this)}},{key:"getPacketAtIndex",value:function(e,t){return(0,i._)(function(){var r,n,a;return(0,d._)(this,function(i){switch(i.label){case 0:if(-1===e||!(r=this.demuxer.loadedSamples[e]))return[2,null];if(!t.metadataOnly)return[3,1];return n=g.PLACEHOLDER_DATA,[3,4];case 1:if(!((a=this.demuxer.reader.requestSlice(r.dataStart,r.dataSize))instanceof Promise))return[3,3];return[4,a];case 2:a=i.sent(),i.label=3;case 3:if(!a)return[2,null];n=(0,b.readBytes)(a,r.dataSize),i.label=4;case 4:return[2,new(0,g.EncodedPacket)(n,"key",r.timestamp,r.duration,e,r.dataSize)]}})}).call(this)}},{key:"getFirstPacket",value:function(e){return this.getPacketAtIndex(0,e)}},{key:"getNextPacket",value:function(e,t){return(0,i._)(function(){var r,n,a;return(0,d._)(this,function(i){switch(i.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:r=i.sent(),i.label=2;case 2:if(i.trys.push([2,,6,7]),-1===(n=(0,m.binarySearchExact)(this.demuxer.loadedSamples,e.timestamp,function(e){return e.timestamp})))throw Error("Packet was not created from this track.");a=n+1,i.label=3;case 3:if(!(a>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded))return[3,5];return[4,this.demuxer.advanceReader()];case 4:return i.sent(),[3,3];case 5:return[2,this.getPacketAtIndex(a,t)];case 6:return r(),[7];case 7:return[2]}})}).call(this)}},{key:"getPacket",value:function(e,t){return(0,i._)(function(){var r,n;return(0,d._)(this,function(a){switch(a.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:r=a.sent(),a.label=2;case 2:a.trys.push([2,,6,7]),a.label=3;case 3:if(-1===(n=(0,m.binarySearchLessOrEqual)(this.demuxer.loadedSamples,e,function(e){return e.timestamp}))&&this.demuxer.loadedSamples.length>0)return[2,null];if(this.demuxer.lastSampleLoaded||n>=0&&n+1<this.demuxer.loadedSamples.length)return[2,this.getPacketAtIndex(n,t)];return[4,this.demuxer.advanceReader()];case 4:return a.sent(),[3,3];case 5:return[3,7];case 6:return r(),[7];case 7:return[2]}})}).call(this)}},{key:"getKeyPacket",value:function(e,t){return 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a,i,s,o,c=e("@parcel/transformer-js/src/esmodule-helpers.js");c.defineInteropFlag(r),c.export(r,"Id3V2HeaderFlags",function(){return s}),c.export(r,"Id3V2TextEncoding",function(){return o}),c.export(r,"ID3_V1_TAG_SIZE",function(){return p}),c.export(r,"ID3_V2_HEADER_SIZE",function(){return m}),c.export(r,"ID3_V1_GENRES",function(){return g}),c.export(r,"parseId3V1Tag",function(){return v}),c.export(r,"readId3V1String",function(){return y}),c.export(r,"readId3V2Header",function(){return k}),c.export(r,"parseId3V2Tag",function(){return b}),c.export(r,"Id3V2Reader",function(){return _}),c.export(r,"Id3V2Writer",function(){return S});var u=e("@swc/helpers/cjs/_class_call_check.cjs"),l=e("@swc/helpers/cjs/_create_class.cjs"),d=e("../shared/mp3-misc.js"),f=e("./misc.js"),h=e("./reader.js");(a=s||(s={}))[a.Unsynchronisation=128]="Unsynchronisation",a[a.ExtendedHeader=64]="ExtendedHeader",a[a.ExperimentalIndicator=32]="ExperimentalIndicator",a[a.Footer=16]="Footer",(i=o||(o={}))[i.ISO_8859_1=0]="ISO_8859_1",i[i.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",i[i.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",i[i.UTF_8=3]="UTF_8";var p=128,m=10,g=["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 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s=Number.parseInt(y(e,4),10);Number.isInteger(s)&&s>0&&(null!=t.date||(t.date=new Date(s,0,1)));var o=(0,h.readBytes)(e,30);if(0===o[28]&&0!==o[29]){var c,u,l=o[29];l>0&&(null!=t.trackNumber||(t.trackNumber=l)),e.skip(-30),u=y(e,28),e.skip(2)}else e.skip(-30),u=y(e,30);u&&(null!=t.comment||(t.comment=u));var d=(0,h.readU8)(e);d<g.length&&(null!=t.genre||(t.genre=g[d]))},y=function(e,t){for(var r=(0,h.readBytes)(e,t),n=(0,f.coalesceIndex)(r.indexOf(0),r.length),a=r.subarray(0,n),i="",s=0;s<a.length;s++)i+=String.fromCharCode(a[s]);return i.trimEnd()},k=function(e){var t=e.filePos,r=(0,h.readAscii)(e,3),n=(0,h.readU8)(e),a=(0,h.readU8)(e),i=(0,h.readU8)(e),s=(0,h.readU32Be)(e);return"ID3"!==r||255===n||255===a||(0x80808080&s)!=0?(e.filePos=t,null):{majorVersion:n,revision:a,flags:i,size:(0,d.decodeSynchsafe)(s)}},b=function(e,t,r){if(![2,3,4].includes(t.majorVersion))return void console.warn("Unsupported ID3v2 major version: ".concat(t.majorVersion));var n=(0,h.readBytes)(e,t.size),a=new _(t,n);if(t.flags&s.Footer&&a.removeFooter(),t.flags&s.Unsynchronisation&&3===t.majorVersion&&a.ununsynchronizeAll(),t.flags&s.ExtendedHeader){var i=a.readU32();3===t.majorVersion?a.pos+=i:a.pos+=i-4}for(;a.pos<=a.bytes.length-a.frameHeaderSize();){var o=a.readId3V2Frame();if(!o)break;var c=a.pos,u=a.pos+o.size,l=!1,d=!1,f=!1;if(3===t.majorVersion?(l=!!(64&o.flags),d=!!(128&o.flags)):4===t.majorVersion&&(l=!!(4&o.flags),d=!!(8&o.flags),f=!!(2&o.flags)||!!(t.flags&s.Unsynchronisation)),l){console.warn("Skipping encrypted ID3v2 frame ".concat(o.id)),a.pos=u;continue}if(d){console.warn("Skipping compressed ID3v2 frame ".concat(o.id)),a.pos=u;continue}switch(f&&a.ununsynchronizeRegion(a.pos,u),null!=r.raw||(r.raw={}),"T"===o.id[0]?null!=(p=r.raw)[m=o.id]||(p[m]=a.readId3V2EncodingAndText(u)):null!=(v=r.raw)[y=o.id]||(v[y]=a.readBytes(o.size)),a.pos=c,o.id){case"TIT2":case"TT2":null!=r.title||(r.title=a.readId3V2EncodingAndText(u));break;case"TIT3":case"TT3":null!=r.description||(r.description=a.readId3V2EncodingAndText(u));break;case"TPE1":case"TP1":null!=r.artist||(r.artist=a.readId3V2EncodingAndText(u));break;case"TALB":case"TAL":null!=r.album||(r.album=a.readId3V2EncodingAndText(u));break;case"TPE2":case"TP2":null!=r.albumArtist||(r.albumArtist=a.readId3V2EncodingAndText(u));break;case"TRCK":case"TRK":var p,m,v,y,k=a.readId3V2EncodingAndText(u).split("/"),b=Number.parseInt(k[0],10),S=k[1]&&Number.parseInt(k[1],10);Number.isInteger(b)&&b>0&&(null!=r.trackNumber||(r.trackNumber=b)),S&&Number.isInteger(S)&&S>0&&(null!=r.tracksTotal||(r.tracksTotal=S));break;case"TPOS":case"TPA":var w=a.readId3V2EncodingAndText(u).split("/"),T=Number.parseInt(w[0],10),I=w[1]&&Number.parseInt(w[1],10);Number.isInteger(T)&&T>0&&(null!=r.discNumber||(r.discNumber=T)),I&&Number.isInteger(I)&&I>0&&(null!=r.discsTotal||(r.discsTotal=I));break;case"TCON":case"TCO":var x=a.readId3V2EncodingAndText(u),E=/^\((\d+)\)/.exec(x);if(E){var P=Number.parseInt(E[1]);if(void 0!==g[P]){null!=r.genre||(r.genre=g[P]);break}}if(E=/^\d+$/.exec(x)){var j=Number.parseInt(E[0]);if(void 0!==g[j]){null!=r.genre||(r.genre=g[j]);break}}null!=r.genre||(r.genre=x);break;case"TDRC":case"TDAT":var C=new Date(a.readId3V2EncodingAndText(u));Number.isNaN(C.getTime())||null!=r.date||(r.date=C);break;case"TYER":case"TYE":var A=Number.parseInt(a.readId3V2EncodingAndText(u),10);Number.isInteger(A)&&(null!=r.date||(r.date=new Date(A,0,1)));break;case"USLT":case"ULT":var B=a.readU8();a.pos+=3,a.readId3V2Text(B,u),null!=r.lyrics||(r.lyrics=a.readId3V2Text(B,u));break;case"COMM":case"COM":var M=a.readU8();a.pos+=3,a.readId3V2Text(M,u),null!=r.comment||(r.comment=a.readId3V2Text(M,u));break;case"APIC":case"PIC":var D=a.readId3V2TextEncoding(),R=void 0;if(2===t.majorVersion){var F=a.readAscii(3);R="PNG"===F?"image/png":"JPG"===F?"image/jpeg":"image/*"}else R=a.readId3V2Text(D,u);var U=a.readU8(),O=a.readId3V2Text(D,u).trimEnd(),L=u-a.pos;if(L>=0){var N=a.readBytes(L);r.images||(r.images=[]),r.images.push({data:N,mimeType:R,kind:3===U?"coverFront":4===U?"coverBack":"unknown",description:O})}break;default:a.pos+=o.size}a.pos=u}},_=function(){"use strict";function e(t,r){(0,u._)(this,e),this.header=t,this.bytes=r,this.pos=0,this.view=new DataView(r.buffer,r.byteOffset,r.byteLength)}return(0,l._)(e,[{key:"frameHeaderSize",value:function(){return 2===this.header.majorVersion?6:10}},{key:"ununsynchronizeAll",value:function(){for(var e=[],t=0;t<this.bytes.length;t++){var r=this.bytes[t];e.push(r),255===r&&t!==this.bytes.length-1&&0===this.bytes[t]&&t++}this.bytes=new Uint8Array(e),this.view=new DataView(this.bytes.buffer)}},{key:"ununsynchronizeRegion",value:function(e,t){for(var r=[],n=e;n<t;n++){var a=this.bytes[n];r.push(a),255===a&&n!==t-1&&0===this.bytes[n+1]&&n++}var i=this.bytes.subarray(0,e),s=this.bytes.subarray(t);this.bytes=new Uint8Array(i.length+r.length+s.length),this.bytes.set(i,0),this.bytes.set(r,i.length),this.bytes.set(s,i.length+r.length),this.view=new DataView(this.bytes.buffer)}},{key:"removeFooter",value:function(){this.bytes=this.bytes.subarray(0,this.bytes.length-m),this.view=new DataView(this.bytes.buffer)}},{key:"readBytes",value:function(e){var t=this.bytes.subarray(this.pos,this.pos+e);return this.pos+=e,t}},{key:"readU8",value:function(){var e=this.view.getUint8(this.pos);return this.pos+=1,e}},{key:"readU16",value:function(){var e=this.view.getUint16(this.pos,!1);return this.pos+=2,e}},{key:"readU24",value:function(){var e=this.view.getUint16(this.pos,!1),t=this.view.getUint8(this.pos+1);return this.pos+=3,256*e+t}},{key:"readU32",value:function(){var e=this.view.getUint32(this.pos,!1);return this.pos+=4,e}},{key:"readAscii",value:function(e){for(var t="",r=0;r<e;r++)t+=String.fromCharCode(this.view.getUint8(this.pos+r));return this.pos+=e,t}},{key:"readId3V2Frame",value:function(){var e=this;if(2===this.header.majorVersion){var t=this.readAscii(3);return"\0\0\0"===t?null:{id:t,size:this.readU24(),flags:0}}var r=this.readAscii(4);if("\0\0\0\0"===r)return null;var n=this.readU32(),a=4===this.header.majorVersion?(0,d.decodeSynchsafe)(n):n,i=this.readU16(),s=this.pos,o=function(t){var r=e.pos+t;if(r>e.bytes.length)return!1;if(r<=e.bytes.length-e.frameHeaderSize()){e.pos+=t;var n=e.readAscii(4);if("\0\0\0\0"!==n&&!/[0-9A-Z]{4}/.test(n))return!1}return!0};if(!o(a)){var c=4===this.header.majorVersion?n:(0,d.decodeSynchsafe)(n);o(c)&&(a=c)}return this.pos=s,{id:r,size:a,flags:i}}},{key:"readId3V2TextEncoding",value:function(){var e=this.readU8();if(e>3)throw Error("Unsupported text encoding: ".concat(e));return e}},{key:"readId3V2Text",value:function(e,t){var r=this.pos,n=this.readBytes(t-this.pos);switch(e){case o.ISO_8859_1:for(var a="",i=0;i<n.length;i++){var s=n[i];if(0===s){this.pos=r+i+1;break}a+=String.fromCharCode(s)}return a;case o.UTF_16_WITH_BOM:if(255===n[0]&&254===n[1]){var c=new TextDecoder("utf-16le"),u=(0,f.coalesceIndex)(n.findIndex(function(e,t){return 0===e&&0===n[t+1]&&t%2==0}),n.length);return this.pos=r+Math.min(u+2,n.length),c.decode(n.subarray(2,u))}if(254===n[0]&&255===n[1]){var l=new TextDecoder("utf-16be"),d=(0,f.coalesceIndex)(n.findIndex(function(e,t){return 0===e&&0===n[t+1]&&t%2==0}),n.length);return this.pos=r+Math.min(d+2,n.length),l.decode(n.subarray(2,d))}var h=(0,f.coalesceIndex)(n.findIndex(function(e){return 0===e}),n.length);return this.pos=r+Math.min(h+1,n.length),f.textDecoder.decode(n.subarray(0,h));case o.UTF_16_BE_NO_BOM:var p=new TextDecoder("utf-16be"),m=(0,f.coalesceIndex)(n.findIndex(function(e,t){return 0===e&&0===n[t+1]&&t%2==0}),n.length);return this.pos=r+Math.min(m+2,n.length),p.decode(n.subarray(0,m));case o.UTF_8:var g=(0,f.coalesceIndex)(n.findIndex(function(e){return 0===e}),n.length);return this.pos=r+Math.min(g+1,n.length),f.textDecoder.decode(n.subarray(0,g))}}},{key:"readId3V2EncodingAndText",value:function(e){if(this.pos>=e)return"";var t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}]),e}(),S=function(){"use strict";function e(t){(0,u._)(this,e),this.helper=new Uint8Array(8),this.helperView=(0,f.toDataView)(this.helper),this.writer=t}return(0,l._)(e,[{key:"writeId3V2Tag",value:function(e){var t=this.writer.getPos();this.writeAscii("ID3"),this.writeU8(4),this.writeU8(0),this.writeU8(0),this.writeSynchsafeU32(0);var r=this.writer.getPos(),n=new Set,a=!0,i=!1,s=void 0;try{for(var c,u=(0,f.keyValueIterator)(e)[Symbol.iterator]();!(a=(c=u.next()).done);a=!0){var l=c.value,d=l.key,h=l.value;switch(d){case"title":this.writeId3V2TextFrame("TIT2",h),n.add("TIT2");break;case"description":this.writeId3V2TextFrame("TIT3",h),n.add("TIT3");break;case"artist":this.writeId3V2TextFrame("TPE1",h),n.add("TPE1");break;case"album":this.writeId3V2TextFrame("TALB",h),n.add("TALB");break;case"albumArtist":this.writeId3V2TextFrame("TPE2",h),n.add("TPE2");break;case"trackNumber":var p=void 0!==e.tracksTotal?"".concat(h,"/").concat(e.tracksTotal):h.toString();this.writeId3V2TextFrame("TRCK",p),n.add("TRCK");break;case"discNumber":var m=void 0!==e.discsTotal?"".concat(h,"/").concat(e.discsTotal):h.toString();this.writeId3V2TextFrame("TPOS",m),n.add("TPOS");break;case"genre":this.writeId3V2TextFrame("TCON",h),n.add("TCON");break;case"date":this.writeId3V2TextFrame("TDRC",h.toISOString().slice(0,10)),n.add("TDRC");break;case"lyrics":this.writeId3V2LyricsFrame(h),n.add("USLT");break;case"comment":this.writeId3V2CommentFrame(h),n.add("COMM");break;case"images":var g={coverFront:3,coverBack:4,unknown:0},v=!0,y=!1,k=void 0;try{for(var b,_=h[Symbol.iterator]();!(v=(b=_.next()).done);v=!0){var S,w,T=b.value,I=null!=(S=g[T.kind])?S:0,x=null!=(w=T.description)?w:"";this.writeId3V2ApicFrame(T.mimeType,I,x,T.data)}}catch(e){y=!0,k=e}finally{try{v||null==_.return||_.return()}finally{if(y)throw k}}break;case"tracksTotal":case"discsTotal":case"raw":break;default:(0,f.assertNever)(d)}}}catch(e){i=!0,s=e}finally{try{a||null==u.return||u.return()}finally{if(i)throw s}}if(e.raw)for(var E in e.raw){var P=e.raw[E];if(!(null==P||4!==E.length||n.has(E))){var j=void 0;if("string"==typeof P){var C=f.textEncoder.encode(P);(j=new Uint8Array(C.byteLength+2))[0]=o.UTF_8,j.set(C,1)}else{if(!(P instanceof Uint8Array))continue;j=P}this.writeAscii(E),this.writeSynchsafeU32(j.byteLength),this.writeU16(0),this.writer.write(j)}}var A=this.writer.getPos(),B=A-r;return this.writer.seek(t+6),this.writeSynchsafeU32(B),this.writer.seek(A),B+10}},{key:"writeU8",value:function(e){this.helper[0]=e,this.writer.write(this.helper.subarray(0,1))}},{key:"writeU16",value:function(e){this.helperView.setUint16(0,e,!1),this.writer.write(this.helper.subarray(0,2))}},{key:"writeU32",value:function(e){this.helperView.setUint32(0,e,!1),this.writer.write(this.helper.subarray(0,4))}},{key:"writeAscii",value:function(e){for(var t=0;t<e.length;t++)this.helper[t]=e.charCodeAt(t);this.writer.write(this.helper.subarray(0,e.length))}},{key:"writeSynchsafeU32",value:function(e){this.writeU32((0,d.encodeSynchsafe)(e))}},{key:"writeIsoString",value:function(e){for(var t=new Uint8Array(e.length+1),r=0;r<e.length;r++)t[r]=e.charCodeAt(r);t[e.length]=0,this.writer.write(t)}},{key:"writeUtf8String",value:function(e){var t=f.textEncoder.encode(e);this.writer.write(t),this.writeU8(0)}},{key:"writeId3V2TextFrame",value:function(e,t){var r=(0,f.isIso88591Compatible)(t),n=r?t.length:f.textEncoder.encode(t).byteLength;this.writeAscii(e),this.writeSynchsafeU32(1+n+1),this.writeU16(0),this.writeU8(r?o.ISO_8859_1:o.UTF_8),r?this.writeIsoString(t):this.writeUtf8String(t)}},{key:"writeId3V2LyricsFrame",value:function(e){var t=(0,f.isIso88591Compatible)(e),r=5+e.length+1;this.writeAscii("USLT"),this.writeSynchsafeU32(r),this.writeU16(0),this.writeU8(t?o.ISO_8859_1:o.UTF_8),this.writeAscii("und"),t?(this.writeIsoString(""),this.writeIsoString(e)):(this.writeUtf8String(""),this.writeUtf8String(e))}},{key:"writeId3V2CommentFrame",value:function(e){var t=(0,f.isIso88591Compatible)(e),r=t?e.length:f.textEncoder.encode(e).byteLength;this.writeAscii("COMM"),this.writeSynchsafeU32(5+r+1),this.writeU16(0),this.writeU8(t?o.ISO_8859_1:o.UTF_8),this.writeU8(117),this.writeU8(110),this.writeU8(100),t?(this.writeIsoString(""),this.writeIsoString(e)):(this.writeUtf8String(""),this.writeUtf8String(e))}},{key:"writeId3V2ApicFrame",value:function(e,t,r,n){var a=(0,f.isIso88591Compatible)(e)&&(0,f.isIso88591Compatible)(r),i=a?r.length:f.textEncoder.encode(r).byteLength,s=1+e.length+1+1+i+1+n.byteLength;this.writeAscii("APIC"),this.writeSynchsafeU32(s),this.writeU16(0),this.writeU8(a?o.ISO_8859_1:o.UTF_8),a?this.writeIsoString(e):this.writeUtf8String(e),this.writeU8(t),a?this.writeIsoString(r):this.writeUtf8String(r),this.writer.write(n)}}]),e}()},{"@swc/helpers/cjs/_class_call_check.cjs":"4Uf9M","@swc/helpers/cjs/_create_class.cjs":"igUuK","../shared/mp3-misc.js":"gcure","./misc.js":"j7iGm","./reader.js":"8KRfO","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],gFWvE:[function(e,t,r,n){var a=e("@parcel/transformer-js/src/esmodule-helpers.js");a.defineInteropFlag(r),a.export(r,"readNextMp3FrameHeader",function(){return u});var i=e("@swc/helpers/cjs/_async_to_generator.cjs"),s=e("@swc/helpers/cjs/_ts_generator.cjs"),o=e("../../shared/mp3-misc.js"),c=e("../reader.js"),u=function(e,t,r){return(0,i._)(function(){var n,a,i,u;return(0,s._)(this,function(s){switch(s.label){case 0:n=t,s.label=1;case 1:if(!(null===r||n<r))return[3,4];if(!((a=e.requestSlice(n,o.FRAME_HEADER_SIZE))instanceof Promise))return[3,3];return[4,a];case 2:a=s.sent(),s.label=3;case 3:if(!a)return[3,4];if(i=(0,c.readU32Be)(a),(u=(0,o.readMp3FrameHeader)(i,null!==e.fileSize?e.fileSize-n:null)).header)return[2,{header:u.header,startPos:n}];return n+=u.bytesAdvanced,[3,1];case 4:return[2,null]}})})()}},{"@swc/helpers/cjs/_async_to_generator.cjs":"cZn0e","@swc/helpers/cjs/_ts_generator.cjs":"eltGh","../../shared/mp3-misc.js":"gcure","../reader.js":"8KRfO","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],hRJRs:[function(e,t,r,n){var a=e("@parcel/transformer-js/src/esmodule-helpers.js");a.defineInteropFlag(r),a.export(r,"OggDemuxer",function(){return w});var i=e("@swc/helpers/cjs/_async_to_generator.cjs"),s=e("@swc/helpers/cjs/_call_super.cjs"),o=e("@swc/helpers/cjs/_class_call_check.cjs"),c=e("@swc/helpers/cjs/_create_class.cjs"),u=e("@swc/helpers/cjs/_inherits.cjs"),l=e("@swc/helpers/cjs/_object_spread.cjs"),d=e("@swc/helpers/cjs/_to_consumable_array.cjs"),f=e("@swc/helpers/cjs/_ts_generator.cjs"),h=e("../codec.js"),p=e("../codec-data.js"),m=e("../demuxer.js"),g=e("../input-track.js"),v=e("../metadata.js"),y=e("../misc.js"),k=e("../packet.js"),b=e("../reader.js"),_=e("./ogg-misc.js"),S=e("./ogg-reader.js"),w=function(e){"use strict";function t(e){var r;return(0,o._)(this,t),(r=(0,s._)(this,t,[e])).metadataPromise=null,r.bitstreams=[],r.tracks=[],r.metadataTags={},r.reader=e._reader,r}return(0,u._)(t,e),(0,c._)(t,[{key:"readMetadata",value:function(){return(0,i._)(function(){var e,t;return(0,f._)(this,function(r){return e=this,[2,null!=(t=this.metadataPromise)?t:this.metadataPromise=(0,i._)(function(){var e,t,r,n,a,i,s,o,c,u,l;return(0,f._)(this,function(d){switch(d.label){case 0:e=0,d.label=1;case 1:if(!((t=this.reader.requestSliceRange(e,S.MIN_PAGE_HEADER_SIZE,S.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,3];return[4,t];case 2:t=d.sent(),d.label=3;case 3:if(!t||!(r=(0,S.readPageHeader)(t))||!(2&r.headerType))return[3,4];return this.bitstreams.push({serialNumber:r.serialNumber,bosPage:r,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=r.headerStartPos+r.totalSize,[3,1];case 4:n=!0,a=!1,i=void 0,d.label=5;case 5:d.trys.push([5,14,15,16]),s=this.bitstreams[Symbol.iterator](),d.label=6;case 6:if(n=(o=s.next()).done)return[3,13];return c=o.value,[4,this.readPacket(c.bosPage,0)];case 7:if(!(u=d.sent()))return[3,12];if(!(u.data.byteLength>=7&&1===u.data[0]&&118===u.data[1]&&111===u.data[2]&&114===u.data[3]&&98===u.data[4]&&105===u.data[5]&&115===u.data[6]))return[3,9];return[4,this.readVorbisMetadata(u,c)];case 8:return d.sent(),[3,11];case 9:if(!(u.data.byteLength>=8&&79===u.data[0]&&112===u.data[1]&&117===u.data[2]&&115===u.data[3]&&72===u.data[4]&&101===u.data[5]&&97===u.data[6]&&100===u.data[7]))return[3,11];return[4,this.readOpusMetadata(u,c)];case 10:d.sent(),d.label=11;case 11:null!==c.codecInfo.codec&&this.tracks.push(new(0,g.InputAudioTrack)(this.input,new T(c,this))),d.label=12;case 12:return n=!0,[3,6];case 13:return[3,16];case 14:return l=d.sent(),a=!0,i=l,[3,16];case 15:try{n||null==s.return||s.return()}finally{if(a)throw i}return[7];case 16:return[2]}})}).call(e)]})}).call(this)}},{key:"readVorbisMetadata",value:function(e,t){return(0,i._)(function(){var r,n,a,i,s,o,c,u;return(0,f._)(this,function(l){switch(l.label){case 0:return[4,this.findNextPacketStart(e)];case 1:case 3:if(!(r=l.sent()))return[2];return[4,this.readPacket(r.startPage,r.startSegmentIndex)];case 2:if(!(n=l.sent()))return[2];return[4,this.findNextPacketStart(n)];case 4:if(!(a=l.sent())||3!==n.data[0]||5!==a.data[0])return[2];return i=[],(s=function(e){for(;i.push(Math.min(255,e)),!(e<255);)e-=255})(e.data.length),s(n.data.length),(o=new Uint8Array(1+i.length+e.data.length+n.data.length+a.data.length))[0]=2,o.set(i,1),o.set(e.data,1+i.length),o.set(n.data,1+i.length+e.data.length),o.set(a.data,1+i.length+e.data.length+n.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=a,t.numberOfChannels=(c=(0,y.toDataView)(e.data)).getUint8(11),t.sampleRate=c.getUint32(12,!0),u=c.getUint8(28),t.codecInfo.vorbisInfo={blocksizes:[1<<(15&u),1<<(u>>4)],modeBlockflags:(0,p.parseModesFromVorbisSetupPacket)(a.data).modeBlockflags},(0,p.readVorbisComments)(n.data.subarray(7),this.metadataTags),[2]}})}).call(this)}},{key:"readOpusMetadata",value:function(e,t){return(0,i._)(function(){var r,n,a;return(0,f._)(this,function(i){switch(i.label){case 0:return[4,this.findNextPacketStart(e)];case 1:if(!(r=i.sent()))return[2];return[4,this.readPacket(r.startPage,r.startSegmentIndex)];case 2:if(!(n=i.sent()))return[2];return t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=n,t.numberOfChannels=(a=(0,p.parseOpusIdentificationHeader)(e.data)).outputChannelCount,t.sampleRate=h.OPUS_SAMPLE_RATE,t.codecInfo.opusInfo={preSkip:a.preSkip},(0,p.readVorbisComments)(n.data.subarray(8),this.metadataTags),[2]}})}).call(this)}},{key:"readPacket",value:function(e,t){return(0,i._)(function(){var r,n,a,i,s,o,c,u,l,d,h,p,m,g,v,k,_;return(0,f._)(this,function(f){switch(f.label){case 0:for((0,y.assert)(t<e.lacingValues.length),r=0,n=0;n<t;n++)r+=e.lacingValues[n];a=e,i=r,s=t,o=[],f.label=1;case 1:if(!((c=this.reader.requestSlice(a.dataStartPos,a.dataSize))instanceof Promise))return[3,3];return[4,c];case 2:c=f.sent(),f.label=3;case 3:for((0,y.assert)(c),u=(0,b.readBytes)(c,a.dataSize);;){if(s===a.lacingValues.length){o.push(u.subarray(r,i));break}if(l=a.lacingValues[s],i+=l,l<255)return o.push(u.subarray(r,i)),[3,8];s++}d=a.headerStartPos+a.totalSize,f.label=4;case 4:if(!((h=this.reader.requestSliceRange(d,S.MIN_PAGE_HEADER_SIZE,S.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,6];return[4,h];case 5:h=f.sent(),f.label=6;case 6:if(!h||!(p=(0,S.readPageHeader)(h)))return[2,null];if((a=p).serialNumber===e.serialNumber)return[3,7];return d=a.headerStartPos+a.totalSize,[3,4];case 7:return r=0,i=0,s=0,[3,1];case 8:if(0===(m=o.reduce(function(e,t){return e+t.length},0)))return[2,null];for(k=0,g=new Uint8Array(m),v=0;k<o.length;k++)_=o[k],g.set(_,v),v+=_.length;return[2,{data:g,endPage:a,endSegmentIndex:s}]}})}).call(this)}},{key:"findNextPacketStart",value:function(e){return(0,i._)(function(){var t,r,n;return(0,f._)(this,function(a){switch(a.label){case 0:if(e.endSegmentIndex<e.endPage.lacingValues.length-1)return[2,{startPage:e.endPage,startSegmentIndex:e.endSegmentIndex+1}];if(4&e.endPage.headerType)return[2,null];t=e.endPage.headerStartPos+e.endPage.totalSize,a.label=1;case 1:if(!((r=this.reader.requestSliceRange(t,S.MIN_PAGE_HEADER_SIZE,S.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,3];return[4,r];case 2:r=a.sent(),a.label=3;case 3:if(!r||!(n=(0,S.readPageHeader)(r)))return[2,null];if(n.serialNumber===e.endPage.serialNumber)return[2,{startPage:n,startSegmentIndex:0}];return t=n.headerStartPos+n.totalSize,[3,1];case 4:return[2]}})}).call(this)}},{key:"getMimeType",value:function(){return(0,i._)(function(){var e;return(0,f._)(this,function(t){switch(t.label){case 0:return[4,this.readMetadata()];case 1:return t.sent(),[4,Promise.all(this.tracks.map(function(e){return e.getCodecParameterString()}))];case 2:return e=t.sent(),[2,(0,_.buildOggMimeType)({codecStrings:e.filter(Boolean)})]}})}).call(this)}},{key:"getTracks",value:function(){return(0,i._)(function(){return(0,f._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),[2,this.tracks]}})}).call(this)}},{key:"computeDuration",value:function(){return(0,i._)(function(){var e,t;return(0,f._)(this,function(r){switch(r.label){case 0:return[4,this.getTracks()];case 1:return[4,Promise.all(r.sent().map(function(e){return e.computeDuration()}))];case 2:return t=r.sent(),[2,(e=Math).max.apply(e,[0].concat((0,d._)(t)))]}})}).call(this)}},{key:"getMetadataTags",value:function(){return(0,i._)(function(){return(0,f._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),[2,this.metadataTags]}})}).call(this)}}]),t}(m.Demuxer),T=function(){"use strict";function e(t,r){(0,o._)(this,e),this.bitstream=t,this.demuxer=r,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new(0,y.AsyncMutex),this.internalSampleRate="opus"===t.codecInfo.codec?h.OPUS_SAMPLE_RATE:t.sampleRate}return(0,c._)(e,[{key:"getId",value:function(){return this.bitstream.serialNumber}},{key:"getNumber",value:function(){var e=this,t=this.demuxer.tracks.findIndex(function(t){return t._backing.bitstream===e.bitstream});return(0,y.assert)(-1!==t),t+1}},{key:"getNumberOfChannels",value:function(){return this.bitstream.numberOfChannels}},{key:"getSampleRate",value:function(){return this.bitstream.sampleRate}},{key:"getTimeResolution",value:function(){return this.bitstream.sampleRate}},{key:"getCodec",value:function(){return this.bitstream.codecInfo.codec}},{key:"getInternalCodecId",value:function(){return null}},{key:"getDecoderConfig",value:function(){return(0,i._)(function(){var e;return(0,f._)(this,function(t){return(0,y.assert)(this.bitstream.codecInfo.codec),[2,{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:null!=(e=this.bitstream.description)?e:void 0}]})}).call(this)}},{key:"getName",value:function(){return null}},{key:"getLanguageCode",value:function(){return y.UNDETERMINED_LANGUAGE}},{key:"getDisposition",value:function(){return(0,l._)({},v.DEFAULT_TRACK_DISPOSITION)}},{key:"getFirstTimestamp",value:function(){return(0,i._)(function(){return(0,f._)(this,function(e){return[2,0]})})()}},{key:"computeDuration",value:function(){return(0,i._)(function(){var e,t,r;return(0,f._)(this,function(n){switch(n.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(t=null==(e=n.sent())?void 0:e.timestamp)?t:0)+(null!=(r=null==e?void 0:e.duration)?r:0)]}})}).call(this)}},{key:"granulePositionToTimestampInSamples",value:function(e){return"opus"===this.bitstream.codecInfo.codec?((0,y.assert)(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}},{key:"createEncodedPacketFromOggPacket",value:function(e,t,r){if(!e)return null;var n=(0,_.extractSampleMetadata)(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),a=n.durationInSamples,i=n.vorbisBlockSize,s=new(0,k.EncodedPacket)(r.metadataOnly?k.PLACEHOLDER_DATA:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,a/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:a,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:i}),s}},{key:"getFirstPacket",value:function(e){return(0,i._)(function(){var t,r,n;return(0,f._)(this,function(a){switch(a.label){case 0:return(0,y.assert)(this.bitstream.lastMetadataPacket),[4,this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket)];case 1:if(!(t=a.sent()))return[2,null];return r=0,"opus"===this.bitstream.codecInfo.codec&&((0,y.assert)(this.bitstream.codecInfo.opusInfo),r-=this.bitstream.codecInfo.opusInfo.preSkip),[4,this.demuxer.readPacket(t.startPage,t.startSegmentIndex)];case 2:return n=a.sent(),[2,this.createEncodedPacketFromOggPacket(n,{timestampInSamples:r,vorbisLastBlocksize:null},e)]}})}).call(this)}},{key:"getNextPacket",value:function(e,t){return(0,i._)(function(){var r,n,a,i;return(0,f._)(this,function(s){switch(s.label){case 0:if(!(r=this.encodedPacketToMetadata.get(e)))throw Error("Packet was not created from this track.");return[4,this.demuxer.findNextPacketStart(r.packet)];case 1:if(!(n=s.sent()))return[2,null];return a=r.timestampInSamples+r.durationInSamples,[4,this.demuxer.readPacket(n.startPage,n.startSegmentIndex)];case 2:return i=s.sent(),[2,this.createEncodedPacketFromOggPacket(i,{timestampInSamples:a,vorbisLastBlocksize:r.vorbisBlockSize},t)]}})}).call(this)}},{key:"getPacket",value:function(e,t){return(0,i._)(function(){var r,n,a,i,s,o,c,u,l,d,h,p,m,g,v,w,T,E,P,j,C,A,B,M,D,R,F,U,O,L,N,z,V,H,G,q,W,K,X,Z,Q,Y,J,$,ee;return(0,f._)(this,function(f){switch(f.label){case 0:if(null===this.demuxer.reader.fileSize)return[2,this.getPacketSequential(e,t)];if(0===(r=(0,y.roundIfAlmostInteger)(e*this.internalSampleRate)))return[2,this.getFirstPacket(t)];if(r<0)return[2,null];return(0,y.assert)(this.bitstream.lastMetadataPacket),[4,this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket)];case 1:if(!(n=f.sent()))return[2,null];a=n.startPage,i=this.demuxer.reader.fileSize,s=[a],f.label=2;case 2:if(!(a.headerStartPos+a.totalSize<i))return[3,13];c=o=Math.floor((a.headerStartPos+i)/2),f.label=3;case 3:if(u=Math.min(c+S.MAX_PAGE_SIZE,i-S.MIN_PAGE_HEADER_SIZE),!((l=this.demuxer.reader.requestSlice(c,u-c))instanceof Promise))return[3,5];return[4,l];case 4:l=f.sent(),f.label=5;case 5:if((0,y.assert)(l),!(0,S.findNextPageHeader)(l,u))return i=o+S.MIN_PAGE_HEADER_SIZE,[3,2];if(!((d=this.demuxer.reader.requestSliceRange(l.filePos,S.MIN_PAGE_HEADER_SIZE,S.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,7];return[4,d];case 6:d=f.sent(),f.label=7;case 7:if((0,y.assert)(d),h=(0,S.readPageHeader)(d),(0,y.assert)(h),p=!1,h.serialNumber!==this.bitstream.serialNumber)return[3,8];return p=!0,[3,11];case 8:if(!((m=this.demuxer.reader.requestSlice(h.headerStartPos,h.totalSize))instanceof Promise))return[3,10];return[4,m];case 9:m=f.sent(),f.label=10;case 10:(0,y.assert)(m),g=(0,b.readBytes)(m,h.totalSize),p=(0,_.computeOggPageCrc)(g)===h.checksum,f.label=11;case 11:if(!p)return c=h.headerStartPos+4,[3,3];if(p&&h.serialNumber!==this.bitstream.serialNumber||-1===h.granulePosition)return c=h.headerStartPos+h.totalSize,[3,3];return this.granulePositionToTimestampInSamples(h.granulePosition)>r?i=h.headerStartPos:(a=h,s.push(h)),[3,2];case 12:return[3,2];case 13:v=n.startPage,w=!0,T=!1,E=void 0;try{for(P=s[Symbol.iterator]();!(w=(j=P.next()).done)&&(C=j.value).granulePosition!==a.granulePosition;w=!0)(!v||C.headerStartPos>v.headerStartPos)&&(v=C)}catch(e){T=!0,E=e}finally{try{w||null==P.return||P.return()}finally{if(T)throw E}}B=[A=v],f.label=14;case 14:if(A.serialNumber===this.bitstream.serialNumber&&A.granulePosition===a.granulePosition)return[3,17];if(M=A.headerStartPos+A.totalSize,!((D=this.demuxer.reader.requestSliceRange(M,S.MIN_PAGE_HEADER_SIZE,S.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,16];return[4,D];case 15:D=f.sent(),f.label=16;case 16:return(0,y.assert)(D),R=(0,S.readPageHeader)(D),(0,y.assert)(R),(A=R).serialNumber===this.bitstream.serialNumber&&B.push(A),[3,14];case 17:if((0,y.assert)(-1!==A.granulePosition),F=null,L=A,N=0,A.headerStartPos!==n.startPage.headerStartPos)return[3,18];return U=this.granulePositionToTimestampInSamples(0),O=!0,F=0,[3,20];case 18:for(U=0,O=!1,z=A.lacingValues.length-1;z>=0;z--)if(A.lacingValues[z]<255){F=z+1;break}if(null===F)throw Error("Invalid page with granule position: no packets end on this page.");return N=F-1,V={data:k.PLACEHOLDER_DATA,endPage:L,endSegmentIndex:N},[4,this.demuxer.findNextPacketStart(V)];case 19:if(f.sent())H=x(B,A,F),(0,y.assert)(H),(G=I(B,H.page,H.segmentIndex))&&(A=G.page,F=G.segmentIndex);else for(;(q=x(B,A,F))&&(W=I(B,q.page,q.segmentIndex));)if(A=W.page,F=W.segmentIndex,q.page.headerStartPos!==L.headerStartPos){L=q.page,N=q.segmentIndex;break}f.label=20;case 20:K=null,X=null,f.label=21;case 21:if(null===A)return[3,24];return(0,y.assert)(null!==F),[4,this.demuxer.readPacket(A,F)];case 22:if(!(Z=f.sent())||!(A.headerStartPos===n.startPage.headerStartPos&&F<n.startSegmentIndex)&&(Y=this.createEncodedPacketFromOggPacket(Z,{timestampInSamples:U,vorbisLastBlocksize:null!=(Q=null==X?void 0:X.vorbisBlockSize)?Q:null},t),(0,y.assert)(Y),J=this.encodedPacketToMetadata.get(Y),(0,y.assert)(J),O||Z.endPage.headerStartPos!==L.headerStartPos||Z.endSegmentIndex!==N?U+=J.durationInSamples:(U=this.granulePositionToTimestampInSamples(A.granulePosition),O=!0,Y=this.createEncodedPacketFromOggPacket(Z,{timestampInSamples:U-J.durationInSamples,vorbisLastBlocksize:null!=($=null==X?void 0:X.vorbisBlockSize)?$:null},t),(0,y.assert)(Y),J=this.encodedPacketToMetadata.get(Y),(0,y.assert)(J)),K=Y,X=J,O&&(Math.max(U,0)>r||Math.max(J.timestampInSamples,0)===r)))return[3,24];return[4,this.demuxer.findNextPacketStart(Z)];case 23:if(!(ee=f.sent()))return[3,24];return A=ee.startPage,F=ee.startSegmentIndex,[3,21];case 24:return[2,K]}})}).call(this)}},{key:"getPacketSequential",value:function(e,t){return(0,i._)(function(){var r,n,a,i,s,o,c,u;return(0,f._)(this,function(l){switch(l.label){case 0:return[4,this.sequentialScanMutex.acquire()];case 1:r=l.sent(),l.label=2;case 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this.getPacket(e,t)}},{key:"getNextKeyPacket",value:function(e,t){return this.getNextPacket(e,t)}}]),e}(),I=function(e,t,r){var n=t,a=r;e:for(;;){for(a--;a>=0;a--)if(n.lacingValues[a]<255){a++;break e}if((0,y.assert)(-1===a),!(1&n.headerType)){a=0;break}var i=(0,y.findLast)(e,function(e){return e.headerStartPos<n.headerStartPos});if(!i)return null;a=(n=i).lacingValues.length}if((0,y.assert)(-1!==a),a===n.lacingValues.length){var s=e[e.indexOf(n)+1];(0,y.assert)(s),n=s,a=0}return{page:n,segmentIndex:a}},x=function(e,t,r){if(r>0)return{page:t,segmentIndex:r-1};var n=(0,y.findLast)(e,function(e){return e.headerStartPos<t.headerStartPos});return n?{page:n,segmentIndex:n.lacingValues.length-1}:null}},{"@swc/helpers/cjs/_async_to_generator.cjs":"cZn0e","@swc/helpers/cjs/_call_super.cjs":"clpdF","@swc/helpers/cjs/_class_call_check.cjs":"4Uf9M","@swc/helpers/cjs/_create_class.cjs":"igUuK","@swc/helpers/cjs/_inherits.cjs":"jtSwf","@swc/helpers/cjs/_object_spread.cjs":"kyoEj","@swc/helpers/cjs/_to_consumable_array.cjs":"i81N6","@swc/helpers/cjs/_ts_generator.cjs":"eltGh","../codec.js":"fXWqW","../codec-data.js":"kWTYV","../demuxer.js":"d4thC","../input-track.js":"b22CJ","../metadata.js":"eSjom","../misc.js":"j7iGm","../packet.js":"QfqGG","../reader.js":"8KRfO","./ogg-misc.js":"g1LsD","./ogg-reader.js":"fY5up","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],g1LsD:[function(e,t,r,n){var a=e("@parcel/transformer-js/src/esmodule-helpers.js");a.defineInteropFlag(r),a.export(r,"OGGS",function(){return c}),a.export(r,"computeOggPageCrc",function(){return h}),a.export(r,"extractSampleMetadata",function(){return p}),a.export(r,"buildOggMimeType",function(){return m});for(var i=e("@swc/helpers/cjs/_to_consumable_array.cjs"),s=e("../codec-data.js"),o=e("../misc.js"),c=0x5367674f,u=new Uint32Array(256),l=0;l<256;l++){for(var d=l<<24,f=0;f<8;f++)d=0x80000000&d?d<<1^0x4c11db7:d<<1;u[l]=d>>>0}var h=function(e){var t=(0,o.toDataView)(e),r=t.getUint32(22,!0);t.setUint32(22,0,!0);for(var n=0,a=0;a<e.length;a++)n=(n<<8^u[n>>>24^e[a]])>>>0;return t.setUint32(22,r,!0),n},p=function(e,t,r){var n=0,a=null;if(e.length>0)if("vorbis"===t.codec){(0,o.assert)(t.vorbisInfo);var i=t.vorbisInfo.modeBlockflags.length,c=(1<<(0,o.ilog)(i-1))-1<<1,u=(e[0]&c)>>1;if(u>=t.vorbisInfo.modeBlockflags.length)throw Error("Invalid mode number.");var l=r,d=t.vorbisInfo.modeBlockflags[u];if(a=t.vorbisInfo.blocksizes[d],1===d){var f=e[0]&(1|c)+1?1:0;l=t.vorbisInfo.blocksizes[f]}n=null!==l?l+a>>2:0}else"opus"===t.codec&&(n=(0,s.parseOpusTocByte)(e).durationInSamples);return{durationInSamples:n,vorbisBlockSize:a}},m=function(e){var 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f=27+u,h=l.reduce(function(e,t){return e+t},0);return{headerStartPos:t,totalSize:f+h,dataStartPos:t+f,dataSize:h,headerType:r,granulePosition:n,serialNumber:a,sequenceNumber:o,checksum:c,lacingValues:l}},d=function(e,t){for(;e.filePos<t-3;){var r=(0,i.readU32Le)(e),n=255&r,a=r>>>8&255,o=r>>>16&255,c=r>>>24&255;if(79===n||79===a||79===o||79===c){if(e.skip(-4),r===s.OGGS)return!0;e.skip(1)}}return!1}},{"../reader.js":"8KRfO","./ogg-misc.js":"g1LsD","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],cokSU:[function(e,t,r,n){var a,i,s=e("@parcel/transformer-js/src/esmodule-helpers.js");s.defineInteropFlag(r),s.export(r,"WaveFormat",function(){return i}),s.export(r,"WaveDemuxer",function(){return S});var o=e("@swc/helpers/cjs/_async_to_generator.cjs"),c=e("@swc/helpers/cjs/_call_super.cjs"),u=e("@swc/helpers/cjs/_class_call_check.cjs"),l=e("@swc/helpers/cjs/_create_class.cjs"),d=e("@swc/helpers/cjs/_inherits.cjs"),f=e("@swc/helpers/cjs/_object_spread.cjs"),h=e("@swc/helpers/cjs/_to_consumable_array.cjs"),p=e("@swc/helpers/cjs/_ts_generator.cjs"),m=e("../demuxer.js"),g=e("../input-track.js"),v=e("../metadata.js"),y=e("../misc.js"),k=e("../packet.js"),b=e("../reader.js"),_=e("../id3.js");(a=i||(i={}))[a.PCM=1]="PCM",a[a.IEEE_FLOAT=3]="IEEE_FLOAT",a[a.ALAW=6]="ALAW",a[a.MULAW=7]="MULAW",a[a.EXTENSIBLE=65534]="EXTENSIBLE";var S=function(e){"use strict";function t(e){var r;return(0,u._)(this,t),(r=(0,c._)(this,t,[e])).metadataPromise=null,r.dataStart=-1,r.dataSize=-1,r.audioInfo=null,r.tracks=[],r.lastKnownPacketIndex=0,r.metadataTags={},r.reader=e._reader,r}return(0,d._)(t,e),(0,l._)(t,[{key:"readMetadata",value:function(){return(0,o._)(function(){var 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t=e.filePos,r=(0,s.readBytes)(e,9),n=new(0,i.Bitstream)(r);if(4095!==n.readBits(12)||(n.skipBits(1),0!==n.readBits(2)))return null;var a=n.readBits(1),o=n.readBits(2)+1,c=n.readBits(4);if(15===c)return null;n.skipBits(1);var u=n.readBits(3);if(0===u)throw Error("ADTS frames with channel configuration 0 are not supported.");n.skipBits(1),n.skipBits(1),n.skipBits(1),n.skipBits(1);var l=n.readBits(13);n.skipBits(11);var d=n.readBits(2)+1;if(1!==d)throw Error("ADTS frames with more than one AAC frame are not supported.");var f=null;return 1===a?e.filePos-=2:f=n.readBits(16),{objectType:o,samplingFrequencyIndex:c,channelConfiguration:u,frameLength:l,numberOfAacFrames:d,crcCheck:f,startPos:t}}},{"../misc.js":"j7iGm","../reader.js":"8KRfO","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],"3t0bF":[function(e,t,r,n){var a=e("@parcel/transformer-js/src/esmodule-helpers.js");a.defineInteropFlag(r),a.export(r,"SAMPLES_PER_AAC_FRAME",function(){return 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4:if(!((r=this.reader.requestSliceRange(this.lastLoadedPos,b.MIN_ADTS_FRAME_HEADER_SIZE,b.MAX_ADTS_FRAME_HEADER_SIZE))instanceof Promise))return[3,6];return[4,r];case 5:r=o.sent(),o.label=6;case 6:if(!r||!(n=(0,b.readAdtsFrameHeader)(r))||null!==this.reader.fileSize&&n.startPos+n.frameLength>this.reader.fileSize)return this.lastSampleLoaded=!0,[2];return this.firstFrameHeader||(this.firstFrameHeader=n),a=f.aacFrequencyTable[n.samplingFrequencyIndex],(0,v.assert)(void 0!==a),i=_/a,s={timestamp:this.nextTimestampInSamples/a,duration:i,dataStart:n.startPos,dataSize:n.frameLength},this.loadedSamples.push(s),this.nextTimestampInSamples+=_,this.lastLoadedPos=n.startPos+n.frameLength,[2]}})}).call(this)}},{key:"getMimeType",value:function(){return(0,i._)(function(){return(0,d._)(this,function(e){return[2,"audio/aac"]})})()}},{key:"getTracks",value:function(){return(0,i._)(function(){return(0,d._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return 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8:if(!a)return[3,9];return(0,p.parseId3V2Tag)(a,n,this.metadataTags),t=r.filePos+n.size,[3,4];case 9:return[2,this.metadataTags];case 10:return e(),[7];case 11:return[2]}})}).call(this)}}]),t}(h.Demuxer),w=function(){"use strict";function e(t){(0,o._)(this,e),this.demuxer=t}return(0,c._)(e,[{key:"getId",value:function(){return 1}},{key:"getNumber",value:function(){return 1}},{key:"getFirstTimestamp",value:function(){return(0,i._)(function(){return(0,d._)(this,function(e){return[2,0]})})()}},{key:"getTimeResolution",value:function(){return this.getSampleRate()/_}},{key:"computeDuration",value:function(){return(0,i._)(function(){var e,t,r;return(0,d._)(this,function(n){switch(n.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(t=null==(e=n.sent())?void 0:e.timestamp)?t:0)+(null!=(r=null==e?void 0:e.duration)?r:0)]}})}).call(this)}},{key:"getName",value:function(){return null}},{key:"getLanguageCode",value:function(){return v.UNDETERMINED_LANGUAGE}},{key:"getCodec",value:function(){return"aac"}},{key:"getInternalCodecId",value:function(){return(0,v.assert)(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}},{key:"getNumberOfChannels",value:function(){(0,v.assert)(this.demuxer.firstFrameHeader);var e=f.aacChannelMap[this.demuxer.firstFrameHeader.channelConfiguration];return(0,v.assert)(void 0!==e),e}},{key:"getSampleRate",value:function(){(0,v.assert)(this.demuxer.firstFrameHeader);var e=f.aacFrequencyTable[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return(0,v.assert)(void 0!==e),e}},{key:"getDisposition",value:function(){return(0,l._)({},g.DEFAULT_TRACK_DISPOSITION)}},{key:"getDecoderConfig",value:function(){return(0,i._)(function(){return(0,d._)(this,function(e){return(0,v.assert)(this.demuxer.firstFrameHeader),[2,{codec:"mp4a.40.".concat(this.demuxer.firstFrameHeader.objectType),numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}]})}).call(this)}},{key:"getPacketAtIndex",value:function(e,t){return(0,i._)(function(){var r,n,a;return(0,d._)(this,function(i){switch(i.label){case 0:if(-1===e||!(r=this.demuxer.loadedSamples[e]))return[2,null];if(!t.metadataOnly)return[3,1];return n=y.PLACEHOLDER_DATA,[3,4];case 1:if(!((a=this.demuxer.reader.requestSlice(r.dataStart,r.dataSize))instanceof Promise))return[3,3];return[4,a];case 2:a=i.sent(),i.label=3;case 3:if(!a)return[2,null];n=(0,k.readBytes)(a,r.dataSize),i.label=4;case 4:return[2,new(0,y.EncodedPacket)(n,"key",r.timestamp,r.duration,e,r.dataSize)]}})}).call(this)}},{key:"getFirstPacket",value:function(e){return this.getPacketAtIndex(0,e)}},{key:"getNextPacket",value:function(e,t){return(0,i._)(function(){var r,n,a;return(0,d._)(this,function(i){switch(i.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:r=i.sent(),i.label=2;case 2:if(i.trys.push([2,,6,7]),-1===(n=(0,v.binarySearchExact)(this.demuxer.loadedSamples,e.timestamp,function(e){return e.timestamp})))throw Error("Packet was not created from this track.");a=n+1,i.label=3;case 3:if(!(a>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded))return[3,5];return[4,this.demuxer.advanceReader()];case 4:return i.sent(),[3,3];case 5:return[2,this.getPacketAtIndex(a,t)];case 6:return r(),[7];case 7:return[2]}})}).call(this)}},{key:"getPacket",value:function(e,t){return(0,i._)(function(){var r,n;return(0,d._)(this,function(a){switch(a.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:r=a.sent(),a.label=2;case 2:a.trys.push([2,,6,7]),a.label=3;case 3:if(-1===(n=(0,v.binarySearchLessOrEqual)(this.demuxer.loadedSamples,e,function(e){return e.timestamp}))&&this.demuxer.loadedSamples.length>0)return[2,null];if(this.demuxer.lastSampleLoaded||n>=0&&n+1<this.demuxer.loadedSamples.length)return[2,this.getPacketAtIndex(n,t)];return[4,this.demuxer.advanceReader()];case 4:return a.sent(),[3,3];case 5:return[3,7];case 6:return r(),[7];case 7:return[2]}})}).call(this)}},{key:"getKeyPacket",value:function(e,t){return this.getPacket(e,t)}},{key:"getNextKeyPacket",value:function(e,t){return this.getNextPacket(e,t)}}]),e}()},{"@swc/helpers/cjs/_async_to_generator.cjs":"cZn0e","@swc/helpers/cjs/_call_super.cjs":"clpdF","@swc/helpers/cjs/_class_call_check.cjs":"4Uf9M","@swc/helpers/cjs/_create_class.cjs":"igUuK","@swc/helpers/cjs/_inherits.cjs":"jtSwf","@swc/helpers/cjs/_object_spread.cjs":"kyoEj","@swc/helpers/cjs/_ts_generator.cjs":"eltGh","../codec.js":"fXWqW","../demuxer.js":"d4thC","../id3.js":"42Y2c","../input-track.js":"b22CJ","../metadata.js":"eSjom","../misc.js":"j7iGm","../packet.js":"QfqGG","../reader.js":"8KRfO","./adts-reader.js":"5AUBv","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],e0w8C:[function(e,t,r,n){var a=e("@parcel/transformer-js/src/esmodule-helpers.js");a.defineInteropFlag(r),a.export(r,"FlacDemuxer",function(){return b});var i=e("@swc/helpers/cjs/_async_to_generator.cjs"),s=e("@swc/helpers/cjs/_call_super.cjs"),o=e("@swc/helpers/cjs/_class_call_check.cjs"),c=e("@swc/helpers/cjs/_create_class.cjs"),u=e("@swc/helpers/cjs/_inherits.cjs"),l=e("@swc/helpers/cjs/_object_spread.cjs"),d=e("@swc/helpers/cjs/_ts_generator.cjs"),f=e("../codec-data.js"),h=e("../demuxer.js"),p=e("../input-track.js"),m=e("../misc.js"),g=e("../packet.js"),v=e("../reader.js"),y=e("../metadata.js"),k=e("./flac-misc.js"),b=function(e){"use strict";function t(e){var r;return(0,o._)(this,t),(r=(0,s._)(this,t,[e])).loadedSamples=[],r.metadataPromise=null,r.track=null,r.metadataTags={},r.audioInfo=null,r.lastLoadedPos=null,r.blockingBit=null,r.readingMutex=new(0,m.AsyncMutex),r.lastSampleLoaded=!1,r.reader=e._reader,r}return(0,u._)(t,e),(0,c._)(t,[{key:"computeDuration",value:function(){return(0,i._)(function(){return(0,d._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),(0,m.assert)(this.track),[2,this.track.computeDuration()]}})}).call(this)}},{key:"getMetadataTags",value:function(){return(0,i._)(function(){return(0,d._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),[2,this.metadataTags]}})}).call(this)}},{key:"getTracks",value:function(){return(0,i._)(function(){return(0,d._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),(0,m.assert)(this.track),[2,[this.track]]}})}).call(this)}},{key:"getMimeType",value:function(){return(0,i._)(function(){return(0,d._)(this,function(e){return[2,"audio/flac"]})})()}},{key:"readMetadata",value:function(){return(0,i._)(function(){var e,t,r;return(0,d._)(this,function(n){return e=this,t=4,[2,null!=(r=this.metadataPromise)?r:this.metadataPromise=(0,i._)(function(){var e,r,n,a,i,s,o,c,u,l,h,g,y,k,b,S,w,T,I,x,E,P,j,C,A;return(0,d._)(this,function(d){switch(d.label){case 0:if(!(null===this.reader.fileSize||t<this.reader.fileSize))return[3,14];if(!((e=this.reader.requestSlice(t,4))instanceof Promise))return[3,2];return[4,e];case 1:e=d.sent(),d.label=2;case 2:if(t+=4,null===e)throw Error("Metadata block at position ".concat(t," is too small! Corrupted file."));switch((0,m.assert)(e),r=(0,v.readU8)(e),n=(0,v.readU24Be)(e),a=(128&r)!=0,127&r){case f.FlacBlockType.STREAMINFO:return[3,3];case f.FlacBlockType.VORBIS_COMMENT:return[3,6];case f.FlacBlockType.PICTURE:return[3,9]}return[3,12];case 3:if(!((i=this.reader.requestSlice(t,n))instanceof Promise))return[3,5];return[4,i];case 4:i=d.sent(),d.label=5;case 5:if((0,m.assert)(i),null===i)throw Error("StreamInfo block at position ".concat(t," is too small! Corrupted file."));return s=(0,v.readBytes)(i,34),c=(o=new(0,m.Bitstream)(s)).readBits(16),u=o.readBits(16),l=o.readBits(24),h=o.readBits(24),g=o.readBits(20),y=o.readBits(3)+1,o.readBits(5),k=o.readBits(36),o.skipBits(128),(b=new Uint8Array(42)).set(new Uint8Array([102,76,97,67]),0),b.set(new Uint8Array([128,0,0,34]),4),b.set(s,8),this.audioInfo={numberOfChannels:y,sampleRate:g,totalSamples:k,minimumBlockSize:c,maximumBlockSize:u,minimumFrameSize:l,maximumFrameSize:h,description:b},this.track=new(0,p.InputAudioTrack)(this.input,new _(this)),[3,13];case 6:if(!((S=this.reader.requestSlice(t,n))instanceof Promise))return[3,8];return[4,S];case 7:S=d.sent(),d.label=8;case 8:return(0,m.assert)(S),(0,f.readVorbisComments)((0,v.readBytes)(S,n),this.metadataTags),[3,13];case 9:if(!((T=this.reader.requestSlice(t,n))instanceof Promise))return[3,11];return[4,T];case 10:T=d.sent(),d.label=11;case 11:return(0,m.assert)(T),I=(0,v.readU32Be)(T),x=(0,v.readU32Be)(T),E=m.textDecoder.decode((0,v.readBytes)(T,x)),P=(0,v.readU32Be)(T),j=m.textDecoder.decode((0,v.readBytes)(T,P)),T.skip(16),C=(0,v.readU32Be)(T),A=(0,v.readBytes)(T,C),null!=(w=this.metadataTags).images||(w.images=[]),this.metadataTags.images.push({data:A,mimeType:E,kind:3===I?"coverFront":4===I?"coverBack":"unknown",description:j}),[3,13];case 12:return[3,13];case 13:if(t+=n,a)return this.lastLoadedPos=t,[3,14];return[3,0];case 14:return[2]}})}).call(e)]})}).call(this)}},{key:"readNextFlacFrame",value:function(e){return(0,i._)(function(e){var t,r,n,a,i,s,o,c,u;return(0,d._)(this,function(l){switch(l.label){case 0:return t=e.startPos,r=e.isFirstPacket,(0,m.assert)(this.audioInfo),n=6,a=this.audioInfo.maximumFrameSize+16,[4,this.reader.requestSliceRange(t,this.audioInfo.minimumFrameSize,a)];case 1:if(!(i=l.sent())||!(s=this.readFlacFrameHeader({slice:i,isFirstPacket:r})))return[2,null];for(i.filePos=t+this.audioInfo.minimumFrameSize;;){if(i.filePos>i.end-n)return[2,{num:s.num,blockSize:s.blockSize,sampleRate:s.sampleRate,size:i.end-t,isLastFrame:!0}];if(255===(0,v.readU8)(i)){if(o=i.filePos,(0,v.readU8)(i)!==(1===this.blockingBit?249:248)||(i.skip(-2),c=i.filePos-t,!(u=this.readFlacFrameHeader({slice:i,isFirstPacket:!1})))){i.filePos=o;continue}if(0===this.blockingBit){if(u.num-s.num!=1){i.filePos=o;continue}}else if(u.num-s.num!==s.blockSize){i.filePos=o;continue}return[2,{num:s.num,blockSize:s.blockSize,sampleRate:s.sampleRate,size:c,isLastFrame:!1}]}}return[2]}})}).apply(this,arguments)}},{key:"readFlacFrameHeader",value:function(e){var t=e.slice,r=e.isFirstPacket,n=t.filePos,a=(0,v.readBytes)(t,4),i=new(0,m.Bitstream)(a);if(32764!==i.readBits(15))return null;if(null===this.blockingBit){(0,m.assert)(r);var s=i.readBits(1);this.blockingBit=s}else if(1===this.blockingBit){if((0,m.assert)(!r),1!==i.readBits(1))return null}else if(0===this.blockingBit){if((0,m.assert)(!r),0!==i.readBits(1))return null}else throw Error("Invalid blocking bit");var o=(0,k.getBlockSizeOrUncommon)(i.readBits(4));if(!o)return null;(0,m.assert)(this.audioInfo);var c=(0,k.getSampleRateOrUncommon)(i.readBits(4),this.audioInfo.sampleRate);if(!c||(i.readBits(4),i.readBits(3),0!==i.readBits(1)))return null;var u=(0,k.readCodedNumber)(t),l=(0,k.readBlockSize)(t,o),d=(0,k.readSampleRate)(t,c);if(null===d||d!==this.audioInfo.sampleRate)return null;var f=t.filePos-n,h=(0,v.readU8)(t);return(t.skip(-f),t.skip(-1),h!==(0,k.calculateCrc8)((0,v.readBytes)(t,f)))?null:{num:u,blockSize:l,sampleRate:d}}},{key:"advanceReader",value:function(){return(0,i._)(function(){var e,t,r,n;return(0,d._)(this,function(a){switch(a.label){case 0:return[4,this.readMetadata()];case 1:return a.sent(),(0,m.assert)(null!==this.lastLoadedPos),(0,m.assert)(this.audioInfo),e=this.lastLoadedPos,[4,this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length})];case 2:if(!(t=a.sent()))return this.lastSampleLoaded=!0,[2];return n={blockOffset:(r=this.loadedSamples[this.loadedSamples.length-1])?r.blockOffset+r.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size},this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(n),t.isLastFrame&&(this.lastSampleLoaded=!0),[2]}})}).call(this)}}]),t}(h.Demuxer),_=function(){"use strict";function e(t){(0,o._)(this,e),this.demuxer=t}return(0,c._)(e,[{key:"getId",value:function(){return 1}},{key:"getNumber",value:function(){return 1}},{key:"getCodec",value:function(){return"flac"}},{key:"getInternalCodecId",value:function(){return null}},{key:"getNumberOfChannels",value:function(){return(0,m.assert)(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}},{key:"computeDuration",value:function(){return(0,i._)(function(){var e,t,r;return(0,d._)(this,function(n){switch(n.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(t=null==(e=n.sent())?void 0:e.timestamp)?t:0)+(null!=(r=null==e?void 0:e.duration)?r:0)]}})}).call(this)}},{key:"getSampleRate",value:function(){return(0,m.assert)(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}},{key:"getName",value:function(){return null}},{key:"getLanguageCode",value:function(){return m.UNDETERMINED_LANGUAGE}},{key:"getTimeResolution",value:function(){return(0,m.assert)(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}},{key:"getDisposition",value:function(){return(0,l._)({},y.DEFAULT_TRACK_DISPOSITION)}},{key:"getFirstTimestamp",value:function(){return(0,i._)(function(){return(0,d._)(this,function(e){return[2,0]})})()}},{key:"getDecoderConfig",value:function(){return(0,i._)(function(){return(0,d._)(this,function(e){return(0,m.assert)(this.demuxer.audioInfo),[2,{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}]})}).call(this)}},{key:"getPacket",value:function(e,t){return(0,i._)(function(){var r,n,a,i;return(0,d._)(this,function(s){switch(s.label){case 0:if(r=this,(0,m.assert)(this.demuxer.audioInfo),e<0)throw Error("Timestamp cannot be negative");return[4,this.demuxer.readingMutex.acquire()];case 1:n=s.sent(),s.label=2;case 2:s.trys.push([2,,9,10]),s.label=3;case 3:if(-1!==(a=(0,m.binarySearchLessOrEqual)(this.demuxer.loadedSamples,e,function(e){return e.blockOffset/r.demuxer.audioInfo.sampleRate})))return[3,5];return[4,this.demuxer.advanceReader()];case 4:case 6:return s.sent(),[3,3];case 5:if(!((i=this.demuxer.loadedSamples[a]).blockOffset/this.demuxer.audioInfo.sampleRate+i.blockSize/this.demuxer.audioInfo.sampleRate<=e))return[3,7];if(this.demuxer.lastSampleLoaded)return[2,this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t)];return[4,this.demuxer.advanceReader()];case 7:return[2,this.getPacketAtIndex(a,t)];case 8:return[3,10];case 9:return n(),[7];case 10:return[2]}})}).call(this)}},{key:"getNextPacket",value:function(e,t){return(0,i._)(function(){var r,n;return(0,d._)(this,function(a){switch(a.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:r=a.sent(),a.label=2;case 2:if(a.trys.push([2,,6,7]),n=e.sequenceNumber+1,this.demuxer.lastSampleLoaded&&n>=this.demuxer.loadedSamples.length)return[2,null];a.label=3;case 3:if(!(n>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded))return[3,5];return[4,this.demuxer.advanceReader()];case 4:return a.sent(),[3,3];case 5:return[2,this.getPacketAtIndex(n,t)];case 6:return r(),[7];case 7:return[2]}})}).call(this)}},{key:"getKeyPacket",value:function(e,t){return this.getPacket(e,t)}},{key:"getNextKeyPacket",value:function(e,t){return this.getNextPacket(e,t)}},{key:"getPacketAtIndex",value:function(e,t){return(0,i._)(function(){var r,n,a,i,s;return(0,d._)(this,function(o){switch(o.label){case 0:if(!(r=this.demuxer.loadedSamples[e]))return[2,null];if(!t.metadataOnly)return[3,1];return n=g.PLACEHOLDER_DATA,[3,4];case 1:if(!((a=this.demuxer.reader.requestSlice(r.byteOffset,r.byteSize))instanceof Promise))return[3,3];return[4,a];case 2:a=o.sent(),o.label=3;case 3:if(!a)return[2,null];n=(0,v.readBytes)(a,r.byteSize),o.label=4;case 4:return(0,m.assert)(this.demuxer.audioInfo),i=r.blockOffset/this.demuxer.audioInfo.sampleRate,s=r.blockSize/this.demuxer.audioInfo.sampleRate,[2,new(0,g.EncodedPacket)(n,"key",i,s,e,r.byteSize)]}})}).call(this)}},{key:"getFirstPacket",value:function(e){return(0,i._)(function(){return(0,d._)(this,function(t){switch(t.label){case 0:if(!(0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded))return[3,2];return[4,this.demuxer.advanceReader()];case 1:return t.sent(),[3,0];case 2:return[2,this.getPacketAtIndex(0,e)]}})}).call(this)}}]),e}()},{"@swc/helpers/cjs/_async_to_generator.cjs":"cZn0e","@swc/helpers/cjs/_call_super.cjs":"clpdF","@swc/helpers/cjs/_class_call_check.cjs":"4Uf9M","@swc/helpers/cjs/_create_class.cjs":"igUuK","@swc/helpers/cjs/_inherits.cjs":"jtSwf","@swc/helpers/cjs/_object_spread.cjs":"kyoEj","@swc/helpers/cjs/_ts_generator.cjs":"eltGh","../codec-data.js":"kWTYV","../demuxer.js":"d4thC","../input-track.js":"b22CJ","../misc.js":"j7iGm","../packet.js":"QfqGG","../reader.js":"8KRfO","../metadata.js":"eSjom","./flac-misc.js":"4iR5P","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],"4iR5P":[function(e,t,r,n){var a=e("@parcel/transformer-js/src/esmodule-helpers.js");a.defineInteropFlag(r),a.export(r,"getBlockSizeOrUncommon",function(){return o}),a.export(r,"getSampleRateOrUncommon",function(){return c}),a.export(r,"readCodedNumber",function(){return u}),a.export(r,"readBlockSize",function(){return l}),a.export(r,"readSampleRate",function(){return d}),a.export(r,"calculateCrc8",function(){return f});var i=e("../misc.js"),s=e("../reader.js"),o=function(e){if(0===e)return null;if(1===e)return 192;if(e>=2&&e<=5)return 144*Math.pow(2,e);if(6===e)return"uncommon-u8";if(7===e)return"uncommon-u16";else if(e>=8&&e<=15)return Math.pow(2,e);else return null},c=function(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}},u=function(e){for(var t=0,r=new(0,i.Bitstream)((0,s.readBytes)(e,1));1===r.readBits(1);)t++;if(0===t)return r.readBits(7);for(var n=[],a=t-1,o=new(0,i.Bitstream)((0,s.readBytes)(e,a)),c=8-t-1,u=0;u<c;u++)n.unshift(r.readBits(1));for(var l=0;l<a;l++)for(var d=0;d<8;d++){var f=o.readBits(1);d<2||n.unshift(f)}return n.reduce(function(e,t,r){return e|t<<r},0)},l=function(e,t){return"uncommon-u16"===t?(0,s.readU16Be)(e)+1:"uncommon-u8"===t?(0,s.readU8)(e)+1:"number"==typeof t?t:void((0,i.assertNever)(t),(0,i.assert)(!1))},d=function(e,t){return"uncommon-u16"===t?(0,s.readU16Be)(e):"uncommon-u16-10"===t?10*(0,s.readU16Be)(e):"uncommon-u8"===t?(0,s.readU8)(e):"number"==typeof t?t:null},f=function(e){var t=0,r=!0,n=!1,a=void 0;try{for(var i,s=e[Symbol.iterator]();!(r=(i=s.next()).done);r=!0){var o=i.value;t^=o;for(var c=0;c<8;c++)(128&t)!=0?t=t<<1^7:t<<=1,t&=255}}catch(e){n=!0,a=e}finally{try{r||null==s.return||s.return()}finally{if(n)throw a}}return t}},{"../misc.js":"j7iGm","../reader.js":"8KRfO","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],"7gmbe":[function(e,t,r,n){var a=e("@parcel/transformer-js/src/esmodule-helpers.js");a.defineInteropFlag(r),a.export(r,"MpegTsDemuxer",function(){return E}),a.export(r,"MpegTsTrackBacking",function(){return C});var i=e("@swc/helpers/cjs/_async_to_generator.cjs"),s=e("@swc/helpers/cjs/_call_super.cjs"),o=e("@swc/helpers/cjs/_class_call_check.cjs"),c=e("@swc/helpers/cjs/_create_class.cjs"),u=e("@swc/helpers/cjs/_inherits.cjs"),l=e("@swc/helpers/cjs/_object_spread.cjs"),d=e("@swc/helpers/cjs/_object_spread_props.cjs"),f=e("@swc/helpers/cjs/_to_consumable_array.cjs"),h=e("@swc/helpers/cjs/_ts_generator.cjs"),p=e("@swc/helpers/cjs/_ts_values.cjs"),m=e("../adts/adts-demuxer.js"),g=e("../adts/adts-reader.js"),v=e("../codec.js"),y=e("../codec-data.js"),k=e("../demuxer.js"),b=e("../input-track.js"),_=e("../metadata.js"),S=e("../misc.js"),w=e("../../shared/mp3-misc.js"),T=e("../packet.js"),I=e("../reader.js"),x=e("./mpeg-ts-misc.js"),E=function(e){"use strict";function t(e){var r;return(0,o._)(this,t),(r=(0,s._)(this,t,[e])).metadataPromise=null,r.elementaryStreams=[],r.tracks=[],r.packetOffset=0,r.packetStride=-1,r.sectionEndPositions=[],r.seekChunkSize=5242880,r.minReferencePointByteDistance=-1,r.reader=e._reader,r}return(0,u._)(t,e),(0,c._)(t,[{key:"readMetadata",value:function(){return(0,i._)(function(){var e,t;return(0,h._)(this,function(r){return e=this,[2,null!=(t=this.metadataPromise)?t:this.metadataPromise=(0,i._)(function(){var e,t,r,n,a,i,s,o,c,u,l,d,f,m,k;return(0,h._)(this,function(_){switch(_.label){case 0:if(t=function(){var t,r,n,a,u,l,d,f,p,m,k,b,_,T,x,E,P,C,A,B,M,D,R,F,U,O,L;return(0,h._)(this,function(h){switch(h.label){case 0:return[4,e.readPacketHeader(i)];case 1:if(!(t=h.sent()))return[2,"break"];if(0===t.payloadUnitStartIndicator)return i+=e.packetStride,[2,"continue"];return[4,e.readSection(i,!0,!c)];case 2:if(!(r=h.sent()))return[2,"break"];if(n=!1,c||0===r.pid||(0!==r.payload[0]||0!==r.payload[1]||1!==r.payload[2])&&(u=(a=new(0,S.Bitstream)(r.payload)).readAlignedByte(),a.skipBits(8*u),n=2===a.readBits(8)),0!==r.pid||o){if((r.pid===s||n)&&!c){for(k=(m=new(0,S.Bitstream)(r.payload)).readAlignedByte(),m.skipBits(8*k),m.skipBits(12),b=m.readBits(12),m.skipBits(43),m.readBits(13),m.skipBits(6),_=m.readBits(10),m.skipBits(8*_);8*(b+3)-m.pos>32;){switch(T=m.readBits(8),m.skipBits(3),x=m.readBits(13),m.skipBits(6),E=m.readBits(10),m.skipBits(8*E),P=null,T){case 3:case 4:case 15:P={type:"audio",codec:15===T?"aac":"mp3",aacCodecInfo:null,numberOfChannels:-1,sampleRate:-1};break;case 27:case 36:P={type:"video",codec:27===T?"avc":"hevc",avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,reorderSize:-1};break;default:console.warn("Unsupported stream_type 0x".concat(T.toString(16),"; ignoring stream."))}P&&e.elementaryStreams.push({demuxer:e,pid:x,streamType:T,initialized:!1,firstSection:null,info:P,referencePesPackets:[]})}c=!0}else if((C=e.elementaryStreams.find(function(e){return e.pid===r.pid}))&&!C.initialized){if(!(A=j(r)))throw Error("Couldn't read first PES packet for Elementary Stream with PID ".concat(C.pid));if(C.firstSection=r,"video"===C.info.type)if("avc"===C.info.codec){if(C.info.avcCodecInfo=(0,y.extractAvcDecoderConfigurationRecord)(A.data),!C.info.avcCodecInfo)throw Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from first packet.");B=C.info.avcCodecInfo.sequenceParameterSets[0],(0,S.assert)(B),M=(0,y.parseAvcSps)(B),C.info.width=M.displayWidth,C.info.height=M.displayHeight,C.info.colorSpace={primaries:S.COLOR_PRIMARIES_MAP_INVERSE[M.colourPrimaries],transfer:S.TRANSFER_CHARACTERISTICS_MAP_INVERSE[M.transferCharacteristics],matrix:S.MATRIX_COEFFICIENTS_MAP_INVERSE[M.matrixCoefficients],fullRange:!!M.fullRangeFlag},C.info.reorderSize=M.maxDecFrameBuffering,C.initialized=!0}else if("hevc"===C.info.codec){if(C.info.hevcCodecInfo=(0,y.extractHevcDecoderConfigurationRecord)(A.data),!C.info.hevcCodecInfo)throw Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");D=C.info.hevcCodecInfo.arrays.find(function(e){return e.nalUnitType===y.HevcNalUnitType.SPS_NUT}).nalUnits[0],(0,S.assert)(D),R=(0,y.parseHevcSps)(D),C.info.width=R.displayWidth,C.info.height=R.displayHeight,C.info.colorSpace={primaries:S.COLOR_PRIMARIES_MAP_INVERSE[R.colourPrimaries],transfer:S.TRANSFER_CHARACTERISTICS_MAP_INVERSE[R.transferCharacteristics],matrix:S.MATRIX_COEFFICIENTS_MAP_INVERSE[R.matrixCoefficients],fullRange:!!R.fullRangeFlag},C.info.reorderSize=R.maxDecFrameBuffering,C.initialized=!0}else throw Error("Unhandled.");else if("aac"===C.info.codec){if(F=I.FileSlice.tempFromBytes(A.data),!(U=(0,g.readAdtsFrameHeader)(F)))throw Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");C.info.aacCodecInfo={isMpeg2:!1,objectType:U.objectType},C.info.numberOfChannels=v.aacChannelMap[U.channelConfiguration],C.info.sampleRate=v.aacFrequencyTable[U.samplingFrequencyIndex],C.initialized=!0}else if("mp3"===C.info.codec){if(O=(0,I.readU32Be)(I.FileSlice.tempFromBytes(A.data)),!(L=(0,w.readMp3FrameHeader)(O,A.data.byteLength)).header)throw Error("Invalid MP3 audio stream; could not read frame header from first packet.");C.info.numberOfChannels=3===L.header.channel?1:2,C.info.sampleRate=L.header.sampleRate,C.initialized=!0}else throw Error("Unhandled.")}}else{for(d=(l=new(0,S.Bitstream)(r.payload)).readAlignedByte(),l.skipBits(8*d),l.skipBits(14),f=l.readBits(10),l.skipBits(40);8*(f+3)-l.pos>32;)if(p=l.readBits(16),l.skipBits(3),0!==p)if(null!==s)throw Error("Only files with a single program are supported.");else s=l.readBits(13);if(null===s)throw Error("Program Association Table must link to a Program Map Table.");o=!0}if(c&&e.elementaryStreams.every(function(e){return e.initialized}))return[2,"break"];return i+=e.packetStride,[2]}})},r=x.TS_PACKET_SIZE+16+1,!((n=this.reader.requestSlice(0,r))instanceof Promise))return[3,2];return[4,n];case 1:n=_.sent(),_.label=2;case 2:if((0,S.assert)(n),71===(a=(0,I.readBytes)(n,r))[0]&&71===a[x.TS_PACKET_SIZE])this.packetOffset=0,this.packetStride=x.TS_PACKET_SIZE;else if(71===a[0]&&71===a[x.TS_PACKET_SIZE+16])this.packetOffset=0,this.packetStride=x.TS_PACKET_SIZE+16;else if(71===a[4]&&71===a[4+x.TS_PACKET_SIZE])this.packetOffset=4,this.packetStride=x.TS_PACKET_SIZE;else throw Error("Unreachable.");this.minReferencePointByteDistance=256*this.packetStride,i=this.packetOffset,s=null,o=!1,c=!1,_.label=3;case 3:return e=this,[5,(0,p._)(t())];case 4:if("break"===_.sent())return[3,5];return[3,3];case 5:if(!c){if(!o)throw Error("No Program Association Table found in the file.");throw Error("No Program Map Table found in the file.")}u=!0,l=!1,d=void 0;try{for(f=this.elementaryStreams[Symbol.iterator]();!(u=(m=f.next()).done);u=!0)k=m.value,"video"===k.info.type?this.tracks.push(new(0,b.InputVideoTrack)(this.input,new A(k))):this.tracks.push(new(0,b.InputAudioTrack)(this.input,new B(k)))}catch(e){l=!0,d=e}finally{try{u||null==f.return||f.return()}finally{if(l)throw d}}return[2]}})}).call(e)]})}).call(this)}},{key:"getTracks",value:function(){return(0,i._)(function(){return(0,h._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),[2,this.tracks]}})}).call(this)}},{key:"getMetadataTags",value:function(){return(0,i._)(function(){return(0,h._)(this,function(e){return[2,{}]})})()}},{key:"computeDuration",value:function(){return(0,i._)(function(){var e,t;return(0,h._)(this,function(r){switch(r.label){case 0:return[4,this.getTracks()];case 1:return[4,Promise.all(r.sent().map(function(e){return e.computeDuration()}))];case 2:return t=r.sent(),[2,(e=Math).max.apply(e,[0].concat((0,f._)(t)))]}})}).call(this)}},{key:"getMimeType",value:function(){return(0,i._)(function(){var e;return(0,h._)(this,function(t){switch(t.label){case 0:return[4,this.readMetadata()];case 1:return t.sent(),[4,this.getTracks()];case 2:return[4,Promise.all(t.sent().map(function(e){return e.getCodecParameterString()}))];case 3:return e=t.sent(),[2,(0,x.buildMpegTsMimeType)(e)]}})}).call(this)}},{key:"readSection",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]&&arguments[2];return(0,i._)(function(){var n,a,i,s,o,c,u,l,d,f,p,m,g,v,y,k,b,_,w,T;return(0,h._)(this,function(h){switch(h.label){case 0:n=e,a=e,i=[],s=0,o=null,c=!0,u=0,h.label=1;case 1:return[4,this.readPacket(a)];case 2:if(l=h.sent(),a+=this.packetStride,!l)return[3,3];if(o){if(l.pid!==o.pid)if(r)return[3,3];else return[3,1];if(1===l.payloadUnitStartIndicator)return[3,3]}else{if(0===l.payloadUnitStartIndicator)return[3,3];o=l}if(d=!!(2&l.adaptationFieldControl),f=!!(1&l.adaptationFieldControl),p=0,d&&(p=1+l.body[0],l===o&&p>1&&(u=l.body[1]>>6&1)),f&&(0===p?(i.push(l.body),s+=l.body.byteLength):(i.push(l.body.subarray(p)),s+=l.body.byteLength-p)),n=a,!t&&s>=64||-1!==(0,S.binarySearchExact)(this.sectionEndPositions,n,function(e){return e}))return c=!1,[3,3];return[3,1];case 3:if(c&&(m=(0,S.binarySearchLessOrEqual)(this.sectionEndPositions,n,function(e){return e}),this.sectionEndPositions.splice(m+1,0,n)),!o)return[2,null];if(1===i.length)g=i[0];else{g=new Uint8Array(i.reduce(function(e,t){return e+t.length},0)),v=0,y=!0,k=!1,b=void 0;try{for(_=i[Symbol.iterator]();!(y=(w=_.next()).done);y=!0)T=w.value,g.set(T,v),v+=T.length}catch(e){k=!0,b=e}finally{try{y||null==_.return||_.return()}finally{if(k)throw b}}}return[2,{startPos:e,endPos:t?n:null,pid:o.pid,payload:g,randomAccessIndicator:u}]}})}).call(this)}},{key:"readPacketHeader",value:function(e){return(0,i._)(function(){var t,r,n,a;return(0,h._)(this,function(i){switch(i.label){case 0:if(!((t=this.reader.requestSlice(e,4))instanceof Promise))return[3,2];return[4,t];case 1:t=i.sent(),i.label=2;case 2:if(!t)return[2,null];if(71!==(0,I.readU8)(t))throw Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");return n=(r=(0,I.readU16Be)(t))>>14&1,a=8191&r,[2,{payloadUnitStartIndicator:n,pid:a,adaptationFieldControl:(0,I.readU8)(t)>>4&3}]}})}).call(this)}},{key:"readPacket",value:function(e){return(0,i._)(function(){var t,r,n,a,i;return(0,h._)(this,function(s){switch(s.label){case 0:if(!((t=this.reader.requestSlice(e,x.TS_PACKET_SIZE))instanceof Promise))return[3,2];return[4,t];case 1:t=s.sent(),s.label=2;case 2:if(!t)return[2,null];if(71!==(r=(0,I.readBytes)(t,x.TS_PACKET_SIZE))[0])throw Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");return a=(n=(r[1]<<8)+r[2])>>14&1,i=8191&n,[2,{payloadUnitStartIndicator:a,pid:i,adaptationFieldControl:r[3]>>4&3,body:r.subarray(4)}]}})}).call(this)}}]),t}(k.Demuxer),P=function(e){if(e.payload.byteLength<3)return null;var t=new(0,S.Bitstream)(e.payload);if(1!==t.readBits(24))return null;var r=t.readBits(8);if(t.skipBits(16),188===r||190===r||191===r||240===r||241===r||255===r||242===r||248===r)return null;t.skipBits(8);var n=t.readBits(2);t.skipBits(14);var a=0;if(2===n||3===n)t.skipBits(4),a+=0x40000000*t.readBits(3),t.skipBits(1),a+=32768*t.readBits(15),t.skipBits(1),a+=t.readBits(15);else throw Error("PES packets without PTS are not currently supported. If you think this file should be supported, please report it.");return{sectionStartPos:e.startPos,sectionEndPos:e.endPos,pts:a,randomAccessIndicator:e.randomAccessIndicator}},j=function(e){(0,S.assert)(null!==e.endPos);var t=P(e);if(!t)return null;var r=new(0,S.Bitstream)(e.payload);r.skipBits(32);var n=r.readBits(16);r.skipBits(16);var a=r.readBits(8),i=r.pos+8*a;r.pos=i;var s=i/8;(0,S.assert)(Number.isInteger(s));var o=e.payload.subarray(s,n>0?6+n:e.payload.byteLength);return(0,d._)((0,l._)({},t),{data:o})},C=function(){"use strict";function e(t){(0,o._)(this,e),this.elementaryStream=t,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}return(0,c._)(e,[{key:"getId",value:function(){return this.elementaryStream.pid}},{key:"getNumber",value:function(){var t=this.elementaryStream.demuxer,r=this.elementaryStream.info.type,n=0,a=!0,i=!1,s=void 0;try{for(var o,c=t.tracks[Symbol.iterator]();!(a=(o=c.next()).done);a=!0){var u=o.value;if(u.type===r&&n++,(0,S.assert)(u._backing instanceof e),u._backing.elementaryStream===this.elementaryStream)break}}catch(e){i=!0,s=e}finally{try{a||null==c.return||c.return()}finally{if(i)throw s}}return n}},{key:"getCodec",value:function(){throw Error("Not implemented on base class.")}},{key:"getInternalCodecId",value:function(){return this.elementaryStream.streamType}},{key:"getName",value:function(){return null}},{key:"getLanguageCode",value:function(){return S.UNDETERMINED_LANGUAGE}},{key:"getDisposition",value:function(){return _.DEFAULT_TRACK_DISPOSITION}},{key:"getTimeResolution",value:function(){return x.TIMESCALE}},{key:"computeDuration",value:function(){return(0,i._)(function(){var e,t,r;return(0,h._)(this,function(n){switch(n.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(t=null==(e=n.sent())?void 0:e.timestamp)?t:0)+(null!=(r=null==e?void 0:e.duration)?r:0)]}})}).call(this)}},{key:"getFirstTimestamp",value:function(){return(0,i._)(function(){var e,t;return(0,h._)(this,function(r){switch(r.label){case 0:return[4,this.getFirstPacket({metadataOnly:!0})];case 1:return[2,null!=(t=null==(e=r.sent())?void 0:e.timestamp)?t:0]}})}).call(this)}},{key:"createEncodedPacket",value:function(e,t,r){var n;return n=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new(0,T.EncodedPacket)(r.metadataOnly?T.PLACEHOLDER_DATA:e.data,n,e.pts/x.TIMESCALE,Math.max(t/x.TIMESCALE,0),e.sequenceNumber,e.data.byteLength)}},{key:"getFirstPacket",value:function(e){return(0,i._)(function(){var t,r,n,a,i;return(0,h._)(this,function(s){switch(s.label){case 0:return t=this.elementaryStream.firstSection,(0,S.assert)(t),r=j(t),(0,S.assert)(r),[4,(n=new R(this,new D(this.elementaryStream,r))).readNext()];case 1:if(!(a=s.sent()))return[2,null];return i=this.createEncodedPacket(a.packet,a.duration,e),this.packetBuffers.set(i,n),this.packetSectionStarts.set(i,a.packet.sectionStartPos),[2,i]}})}).call(this)}},{key:"getNextPacket",value:function(e,t){return(0,i._)(function(){var r,n,a,i,s,o,c,u,l;return(0,h._)(this,function(d){switch(d.label){case 0:if(!(r=this.packetBuffers.get(e)))return[3,2];return[4,r.readNext()];case 1:if(!(n=d.sent()))return[2,null];return this.packetBuffers.delete(e),a=this.createEncodedPacket(n.packet,n.duration,t),this.packetBuffers.set(a,r),this.packetSectionStarts.set(a,n.packet.sectionStartPos),[2,a];case 2:if(void 0===(i=this.packetSectionStarts.get(e)))throw Error("Packet was not created from this track.");return[4,this.elementaryStream.demuxer.readSection(i,!0)];case 3:s=d.sent(),(0,S.assert)(s),o=j(s),(0,S.assert)(o),r=new R(this,new D(this.elementaryStream,o)),c=e.sequenceNumber,d.label=4;case 4:return[4,r.readNext()];case 5:if(!(u=d.sent()))return[2,null];if(u.packet.sequenceNumber>c)return l=this.createEncodedPacket(u.packet,u.duration,t),this.packetBuffers.set(l,r),this.packetSectionStarts.set(l,u.packet.sectionStartPos),[2,l];return[3,4];case 6:return[2]}})}).call(this)}},{key:"getNextKeyPacket",value:function(e,t){return(0,i._)(function(){var r;return(0,h._)(this,function(n){switch(n.label){case 0:r=e,n.label=1;case 1:return[4,this.getNextPacket(r,t)];case 2:if(!(r=n.sent()))return[2,null];if("key"===r.type)return[2,r];return[3,1];case 3:return[2]}})}).call(this)}},{key:"getPacket",value:function(e,t){return this.doPacketLookup(e,!1,t)}},{key:"getKeyPacket",value:function(e,t){return this.doPacketLookup(e,!0,t)}},{key:"doPacketLookup",value:function(e,t,r){return(0,i._)(function(){var n,a,s,o,c,u,l,d,f,p,m,g,v,y,k,b,_,w,T,I,E,C,A,B,F,U,O,L,N,z,V,H,G,q,W,K,X,Z,Q,Y,J,$,ee,et,er,en,ea,ei,es,eo,ec,eu;return(0,h._)(this,function(el){switch(el.label){case 0:if(n=this,a=(0,S.roundIfAlmostInteger)(e*x.TIMESCALE),o=(s=this.elementaryStream.demuxer).reader,c=s.seekChunkSize,u=this.elementaryStream.pid,l=function(e,t){return(0,i._)(function(){var r,n,a,i;return(0,h._)(this,function(o){switch(o.label){case 0:r=e,o.label=1;case 1:if(!(r<t))return[3,5];return[4,s.readPacketHeader(r)];case 2:if(!(n=o.sent()))return[2,null];if(n.pid!==u||1!==n.payloadUnitStartIndicator)return[3,4];return[4,s.readSection(r,!1)];case 3:if(!(a=o.sent()))return[2,null];if(i=P(a))return[2,i];o.label=4;case 4:return r+=s.packetStride,[3,1];case 5:return[2,null]}})})()},d=this.elementaryStream.firstSection,(0,S.assert)(d),f=P(d),(0,S.assert)(f),a<f.pts)return[2,null];if(m=this.elementaryStream.referencePesPackets,!((v=-1!==(g=(0,S.binarySearchLessOrEqual)(m,a,function(e){return e.pts}))?m[g]:null)&&a-v.pts<x.TIMESCALE/2))return[3,1];return p=v.sectionStartPos,[3,5];case 1:if(y=0,null===o.fileSize||!((k=Math.ceil(o.fileSize/c))>1))return[3,4];b=0,_=k-1,y=b,el.label=2;case 2:if(!(b<=_))return[3,4];return w=Math.floor((b+_)/2),I=(T=(0,S.floorToMultiple)(w*c,s.packetStride)+f.sectionStartPos)+c,[4,l(T,I)];case 3:if(!(E=el.sent()))return _=w-1,[3,2];return E.pts<=a?(y=w,b=w+1):_=w-1,[3,2];case 4:p=(0,S.floorToMultiple)(y*c,s.packetStride)+f.sectionStartPos,el.label=5;case 5:return[4,l(p,null!=(C=o.fileSize)?C:1/0)];case 6:if((A=el.sent())||(A=f),B=this.getReorderSize(),F=function(e,t){return(0,i._)(function(){var n,i,o,c,u,l,d,f,p,m;return(0,h._)(this,function(h){switch(h.label){case 0:return[4,s.readSection(e,!0)];case 1:n=h.sent(),(0,S.assert)(n),i=j(n),(0,S.assert)(i),o=new R(this,new D(this.elementaryStream,i)),h.label=2;case 2:if((null!=(u=null==(c=(0,S.last)(o.presentationOrderPackets))?void 0:c.pts)?u:-1/0)>=a)return[3,4];return[4,o.readNextPacket()];case 3:if(!h.sent())return[3,4];return[3,2];case 4:if(-1===(l=(0,S.findLastIndex)(o.presentationOrderPackets,t)))return[2,null];for(d=o.presentationOrderPackets[l],f=0===l?0:d.pts-o.presentationOrderPackets[l-1].pts;o.decodeOrderPackets[0]!==d;)o.decodeOrderPackets.shift();return o.lastDuration=f,[4,o.readNext()];case 5:return p=h.sent(),(0,S.assert)(p),m=this.createEncodedPacket(p.packet,p.duration,r),this.packetBuffers.set(m,o),this.packetSectionStarts.set(m,p.packet.sectionStartPos),[2,m]}})}).call(n)},!(!t||this.allPacketsAreKeyPackets()))return[3,21];el.label=7;case 7:U=A.sectionStartPos+s.packetStride,el.label=8;case 8:return[4,s.readPacketHeader(U)];case 9:if(!(O=el.sent()))return[3,13];if(O.pid!==u||1!==O.payloadUnitStartIndicator)return[3,11];return[4,s.readSection(U,!1)];case 10:if((L=el.sent())&&(N=P(L))){if(N.pts>a)return[3,13];return A=N,M(this.elementaryStream,N),[3,12]}el.label=11;case 11:return U+=s.packetStride,[3,8];case 12:return[3,7];case 13:z=0,el.label=14;case 14:if(!(z<B))return[3,20];V=A.sectionStartPos-s.packetStride,el.label=15;case 15:if(!(V>=s.packetOffset))return[3,19];return[4,s.readPacketHeader(V)];case 16:if(!(H=el.sent()))return[3,20];if(H.pid!==u||1!==H.payloadUnitStartIndicator)return[3,18];return[4,s.readSection(V,!1)];case 17:if((G=el.sent())&&(q=P(G)))return A=q,[3,19];el.label=18;case 18:return V-=s.packetStride,[3,15];case 19:return z++,[3,14];case 20:return[2,F(A.sectionStartPos,function(e){return e.pts<=a})];case 21:W=p,K=null,el.label=22;case 22:if(X=null,Z=W<=f.sectionStartPos,Q=void 0,!Z)return[3,23];return Q=f,X=f,[3,25];case 23:return[4,l(W,null!=(Y=o.fileSize)?Y:1/0)];case 24:Q=el.sent(),el.label=25;case 25:J=!1,$=0,el.label=26;case 26:if(!Q||null!==K&&Q.sectionStartPos>=K||(1===Q.randomAccessIndicator&&Q.pts<=a&&(X=Q),Q.pts>a&&(J=!0),J&&++$>=B))return[3,32];ee=Q.sectionStartPos+s.packetStride,el.label=27;case 27:return[4,s.readPacketHeader(ee)];case 28:if(!(et=el.sent()))return[3,32];if(et.pid!==u||1!==et.payloadUnitStartIndicator)return[3,30];return[4,s.readSection(ee,!1)];case 29:if((er=el.sent())&&(Q=P(er)))return M(this.elementaryStream,Q),[3,31];el.label=30;case 30:return ee+=s.packetStride,[3,27];case 31:return[3,26];case 32:if(!X)return[3,41];if(en=X,0!==$)return[3,39];ea=0,el.label=33;case 33:if(!(ea<B-1))return[3,39];ei=en.sectionStartPos-s.packetStride,el.label=34;case 34:if(!(ei>=s.packetOffset))return[3,38];return[4,s.readPacketHeader(ei)];case 35:if(!(es=el.sent()))return[3,39];if(es.pid!==u||1!==es.payloadUnitStartIndicator)return[3,37];return[4,s.readSection(ei,!1)];case 36:if((eo=el.sent())&&(ec=P(eo)))return en=ec,[3,38];el.label=37;case 37:return ei-=s.packetStride,[3,34];case 38:return ea++,[3,33];case 39:return[4,F(en.sectionStartPos,function(e){return e.pts<=a&&1===e.randomAccessIndicator})];case 40:return eu=el.sent(),(0,S.assert)(eu),[2,eu];case 41:return(0,S.assert)(!Z),K=W,W=Math.max((0,S.floorToMultiple)(W-f.sectionStartPos-c,s.packetStride)+f.sectionStartPos,f.sectionStartPos),[3,22];case 42:return[2]}})}).call(this)}}]),e}(),A=function(e){"use strict";function t(e){var r;return(0,o._)(this,t),(r=(0,s._)(this,t,[e])).elementaryStream=e,r.decoderConfig={codec:(0,v.extractVideoCodecString)({width:r.elementaryStream.info.width,height:r.elementaryStream.info.height,codec:r.elementaryStream.info.codec,codecDescription:null,colorSpace:r.elementaryStream.info.colorSpace,avcType:1,avcCodecInfo:r.elementaryStream.info.avcCodecInfo,hevcCodecInfo:r.elementaryStream.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null}),codedWidth:r.elementaryStream.info.width,codedHeight:r.elementaryStream.info.height,colorSpace:r.elementaryStream.info.colorSpace},r}return(0,u._)(t,e),(0,c._)(t,[{key:"getCodec",value:function(){return this.elementaryStream.info.codec}},{key:"getCodedWidth",value:function(){return this.elementaryStream.info.width}},{key:"getCodedHeight",value:function(){return this.elementaryStream.info.height}},{key:"getRotation",value:function(){return 0}},{key:"getColorSpace",value:function(){return(0,i._)(function(){return(0,h._)(this,function(e){return[2,this.elementaryStream.info.colorSpace]})}).call(this)}},{key:"canBeTransparent",value:function(){return(0,i._)(function(){return(0,h._)(this,function(e){return[2,!1]})})()}},{key:"getDecoderConfig",value:function(){return(0,i._)(function(){return(0,h._)(this,function(e){return[2,this.decoderConfig]})}).call(this)}},{key:"allPacketsAreKeyPackets",value:function(){return!1}},{key:"getReorderSize",value:function(){return this.elementaryStream.info.reorderSize}}]),t}(C),B=function(e){"use strict";function t(e){var r;return(0,o._)(this,t),(r=(0,s._)(this,t,[e])).elementaryStream=e,r}return(0,u._)(t,e),(0,c._)(t,[{key:"getCodec",value:function(){return this.elementaryStream.info.codec}},{key:"getNumberOfChannels",value:function(){return this.elementaryStream.info.numberOfChannels}},{key:"getSampleRate",value:function(){return this.elementaryStream.info.sampleRate}},{key:"getDecoderConfig",value:function(){return(0,i._)(function(){return(0,h._)(this,function(e){return[2,{codec:(0,v.extractAudioCodecString)({codec:this.elementaryStream.info.codec,codecDescription:null,aacCodecInfo:this.elementaryStream.info.aacCodecInfo}),numberOfChannels:this.elementaryStream.info.numberOfChannels,sampleRate:this.elementaryStream.info.sampleRate}]})}).call(this)}},{key:"allPacketsAreKeyPackets",value:function(){return!0}},{key:"getReorderSize",value:function(){return 1}}]),t}(C),M=function(e,t){var r=e.referencePesPackets,n=(0,S.binarySearchLessOrEqual)(r,t.sectionStartPos,function(e){return e.sectionStartPos});if(n>=0){var a=r[n];if(t.pts<=a.pts)return!1;var i=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-a.sectionStartPos<i)return!1;if(n<r.length-1){var s=r[n+1];if(s.pts<t.pts||s.sectionStartPos-t.sectionStartPos<i)return!1}}return r.splice(n+1,0,t),!0},D=function(){"use strict";function e(t,r){(0,o._)(this,e),this.currentPos=0,this.pesPackets=[],this.currentPesPacketIndex=0,this.currentPesPacketPos=0,this.endPos=0,this.nextPts=0,this.suppliedPacket=null,this.elementaryStream=t,this.pid=t.pid,this.demuxer=t.demuxer,this.startingPesPacket=r}return(0,c._)(e,[{key:"clone",value:function(){var t=new e(this.elementaryStream,this.startingPesPacket);return t.currentPos=this.currentPos,t.pesPackets=(0,f._)(this.pesPackets),t.currentPesPacketIndex=this.currentPesPacketIndex,t.currentPesPacketPos=this.currentPesPacketPos,t.endPos=this.endPos,t.nextPts=this.nextPts,t}},{key:"ensureBuffered",value:function(e){var t=this,r=this.endPos-this.currentPos;return r>=e?e:this.bufferData(e-r).then(function(){return Math.min(t.endPos-t.currentPos,e)})}},{key:"getCurrentPesPacket",value:function(){var e=this.pesPackets[this.currentPesPacketIndex];return(0,S.assert)(e),e}},{key:"bufferData",value:function(e){return(0,i._)(function(){var t,r,n,a,i,s;return(0,h._)(this,function(o){switch(o.label){case 0:t=this.endPos+e,o.label=1;case 1:if(!(this.endPos<t))return[3,8];if(r=void 0,0!==this.pesPackets.length)return[3,2];return r=this.startingPesPacket,[3,7];case 2:n=(0,S.last)(this.pesPackets).sectionEndPos,(0,S.assert)(null!==n),o.label=3;case 3:return[4,this.demuxer.readPacketHeader(n)];case 4:if(!(a=o.sent()))return[2];if(a.pid!==this.pid)return[3,6];return[4,this.demuxer.readSection(n,!0)];case 5:if(!(i=o.sent()))return[2];if(s=j(i))return r=s,[3,7];o.label=6;case 6:return n+=this.demuxer.packetStride,[3,3];case 7:return this.pesPackets.push(r),this.endPos+=r.data.byteLength,1===this.pesPackets.length&&(this.nextPts=r.pts),[3,1];case 8:return[2]}})}).call(this)}},{key:"readBytes",value:function(e){var t=this.getCurrentPesPacket(),r=this.currentPos-this.currentPesPacketPos,n=r+e;if(this.currentPos+=e,n<=t.data.byteLength)return t.data.subarray(r,n);var a=new Uint8Array(e);a.set(t.data.subarray(r));for(var i=t.data.byteLength-r;;){this.advanceCurrentPacket();var s=this.getCurrentPesPacket(),o=e-i;if(o<=s.data.byteLength){a.set(s.data.subarray(0,o),i);break}a.set(s.data,i),i+=s.data.byteLength}return a}},{key:"readU8",value:function(){var e=this.getCurrentPesPacket(),t=this.currentPos-this.currentPesPacketPos;return(this.currentPos++,t<e.data.byteLength)?e.data[t]:(this.advanceCurrentPacket(),(e=this.getCurrentPesPacket()).data[0])}},{key:"seekTo",value:function(e){if(e!==this.currentPos){if(e<this.currentPos)for(;e<this.currentPesPacketPos;){this.currentPesPacketIndex--;var t=this.getCurrentPesPacket();this.currentPesPacketPos-=t.data.byteLength,this.nextPts=t.pts}else for(;;){var r=this.getCurrentPesPacket();if(e<this.currentPesPacketPos+r.data.byteLength)break;this.currentPesPacketPos+=r.data.byteLength,this.currentPesPacketIndex++,this.nextPts=this.getCurrentPesPacket().pts}this.currentPos=e}}},{key:"skip",value:function(e){this.seekTo(this.currentPos+e)}},{key:"advanceCurrentPacket",value:function(){this.currentPesPacketPos+=this.getCurrentPesPacket().data.byteLength,this.currentPesPacketIndex++,this.nextPts=this.getCurrentPesPacket().pts}},{key:"supplyPacket",value:function(e,t){var r=this.getCurrentPesPacket();M(this.elementaryStream,r);var n=this.nextPts;this.nextPts+=t;var a=r.sectionStartPos,i=a+(this.currentPos-this.currentPesPacketPos),s=this.readBytes(e),o=r.randomAccessIndicator;(0,S.assert)(this.elementaryStream.firstSection),r.sectionStartPos===this.elementaryStream.firstSection.startPos&&(o=1),this.suppliedPacket={pts:n,data:s,sequenceNumber:i,sectionStartPos:a,randomAccessIndicator:o},this.pesPackets.splice(0,this.currentPesPacketIndex),this.currentPesPacketIndex=0}}]),e}(),R=function(){"use strict";function e(t,r){(0,o._)(this,e),this.decodeOrderPackets=[],this.reorderBuffer=[],this.presentationOrderPackets=[],this.reachedEnd=!1,this.lastDuration=0,this.backing=t,this.context=r,this.reorderSize=t.getReorderSize(),(0,S.assert)(this.reorderSize>=0)}return(0,c._)(e,[{key:"readNext",value:function(){return(0,i._)(function(){var e,t,r,n;return(0,h._)(this,function(a){switch(a.label){case 0:if(0!==this.decodeOrderPackets.length)return[3,2];return[4,this.readNextPacket()];case 1:if(!a.sent())return[2,null];a.label=2;case 2:return[4,this.ensureCurrentPacketHasNext()];case 3:for(a.sent(),e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e),(0,S.assert)(-1!==t),t===this.presentationOrderPackets.length-1?r=this.lastDuration:(r=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=r),this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0&&(n=this.presentationOrderPackets[0],!this.decodeOrderPackets.includes(n));)this.presentationOrderPackets.shift();return[2,{packet:e,duration:r}]}})}).call(this)}},{key:"readNextPacket",value:function(){return(0,i._)(function(){var e;return(0,h._)(this,function(t){switch(t.label){case 0:if(this.reachedEnd)return[2,!1];if(!this.context.suppliedPacket)return[3,1];return e=this.context.suppliedPacket,[3,3];case 1:var r;return[4,(r=this.context,(0,i._)(function(){var e,t,n,a,i,s,o,c,u,l,d,f,p,v,k,b,_,T,E,P,j,C,A,B,M,D,R,F,U,O,L,N,z,V,H,G,q;return(0,h._)(this,function(h){switch(h.label){case 0:if((0,S.assert)(!r.suppliedPacket),"video"!==(e=r.elementaryStream).info.type)return[3,5];if(t=e.info.codec,n=1024,"avc"!==t&&"hevc"!==t)throw Error("Unhandled.");a=null,h.label=1;case 1:if(!((i=r.ensureBuffered(n))instanceof Promise))return[3,3];return[4,i];case 2:i=h.sent(),h.label=3;case 3:if(0===i)return[3,4];for(s=r.currentPos,c=(o=r.readBytes(i)).byteLength,u=0;u<c&&-1!==(l=o.indexOf(0,u))&&!(l>=c);){if(d=s+(u=l),u+4>=c){r.seekTo(d);break}if(f=o[u+1],p=o[u+2],v=o[u+3],k=0,b=null,0===f&&0===p&&1===v?(k=4,b=o[u+4]):0===f&&1===p&&(k=3,b=v),0===k){u++;continue}if(_=d,null===a){a=_,u+=k;continue}if(null!==b&&(T="avc"===t?(0,y.extractNalUnitTypeForAvc)(b):(0,y.extractNalUnitTypeForHevc)(b),"avc"===t?T===y.AvcNalUnitType.AUD:T===y.HevcNalUnitType.AUD_NUT))return E=_-a,r.seekTo(a),[2,r.supplyPacket(E,0)];u+=k}if(i<n)return[3,4];return[3,1];case 4:if(null!==a)return P=r.endPos-a,r.seekTo(a),[2,r.supplyPacket(P,0)];return[3,26];case 5:j=e.info.codec,C=128,h.label=6;case 6:if(!((A=r.ensureBuffered(C))instanceof Promise))return[3,8];return[4,A];case 7:A=h.sent(),h.label=8;case 8:B=r.currentPos,h.label=9;case 9:if(!(r.currentPos-B<A))return[3,25];if(M=r.readU8(),"aac"!==j)return[3,16];if(255!==M)return[3,9];if(r.skip(-1),D=r.currentPos,!((R=r.ensureBuffered(g.MAX_ADTS_FRAME_HEADER_SIZE))instanceof Promise))return[3,11];return[4,R];case 10:R=h.sent(),h.label=11;case 11:if(R<g.MAX_ADTS_FRAME_HEADER_SIZE)return[2];if(F=r.readBytes(g.MAX_ADTS_FRAME_HEADER_SIZE),!(U=(0,g.readAdtsFrameHeader)(I.FileSlice.tempFromBytes(F))))return[3,14];if(r.seekTo(D),!((O=r.ensureBuffered(U.frameLength))instanceof Promise))return[3,13];return[4,O];case 12:O=h.sent(),h.label=13;case 13:return[2,r.supplyPacket(O,Math.round(m.SAMPLES_PER_AAC_FRAME*x.TIMESCALE/e.info.sampleRate))];case 14:r.seekTo(D+1),h.label=15;case 15:return[3,24];case 16:if("mp3"!==j)return[3,23];if(255!==M)return[3,9];if(r.skip(-1),L=r.currentPos,!((N=r.ensureBuffered(w.FRAME_HEADER_SIZE))instanceof Promise))return[3,18];return[4,N];case 17:N=h.sent(),h.label=18;case 18:if(N<w.FRAME_HEADER_SIZE)return[2];if(z=r.readBytes(w.FRAME_HEADER_SIZE),V=(0,S.toDataView)(z).getUint32(0),!(H=(0,w.readMp3FrameHeader)(V,null)).header)return[3,21];if(r.seekTo(L),!((G=r.ensureBuffered(H.header.totalSize))instanceof Promise))return[3,20];return[4,G];case 19:G=h.sent(),h.label=20;case 20:return q=H.header.audioSamplesInFrame*x.TIMESCALE/e.info.sampleRate,[2,r.supplyPacket(G,Math.round(q))];case 21:r.seekTo(L+1),h.label=22;case 22:return[3,24];case 23:throw Error("Unhandled.");case 24:return[3,9];case 25:if(A<C)return[3,26];return[3,6];case 26:return[2]}})})())];case 2:t.sent(),e=this.context.suppliedPacket,t.label=3;case 3:if(this.context.suppliedPacket=null,!e)return this.reachedEnd=!0,this.flushReorderBuffer(),[2,!1];return 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r=t.canvas,n=t.ctx,a=t.events,i=t.timeupdateInterval,o=t.avSyncTolerance,c=t.dropLateFrames,u=t.poster,l=t.preflightRange;(0,s._)(this,e),this.canvas=r,this.ctx=n,this.events=a,this.timeupdateInterval=void 0===i?250:i,this.avSyncTolerance=void 0===o?.12:o,this.dropLateFrames=void 0!==c&&c,this.poster=void 0===u?"":u,this.preflightRange=void 0!==l&&l,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=NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1}return(0,o._)(e,[{key:"normalizeSource",value:function(e){return"string"==typeof e?new(0,u.UrlSource)(e):e instanceof Blob?new(0,u.BlobSource)(e):"u">typeof ReadableStream&&e instanceof ReadableStream?new(0,u.ReadableStreamSource)(e):e}},{key:"preflight",value:function(e){return(0,i._)(function(){var t;return(0,c._)(this,function(r){switch(r.label){case 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t.sent(),this.videoIterator=null,[2]}})}).call(this)}},{key:"clear",value:function(){this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height)}},{key:"load",value:function(e,t){return(0,i._)(function(){var r,n,a,i,s,o;return(0,c._)(this,function(c){switch(c.label){case 0:return r=++this.asyncId,[4,this.stopIterator()];case 1:return c.sent(),this.clear(),this.posterDrawn=!1,[4,this.preflight(e)];case 2:if(!c.sent())return[2];if(!(n=this.normalizeSource(e)))return this.drawPoster(),[2];return this.input=new(0,u.Input)({source:n,formats:u.ALL_FORMATS}),a=this,[4,this.input.computeDuration()];case 3:if(a.duration=c.sent(),r!==this.asyncId)return[2];return[4,this.input.getPrimaryVideoTrack()];case 4:if(!(i=c.sent()))return this.handleNoVideoTrack(),null==t||t(),[2];if(s=null===i.codec)return[3,6];return[4,i.canDecode()];case 5:s=!c.sent(),c.label=6;case 6:if(s)return this.handleNoVideoTrack(),null==t||t(),[2];return[4,i.canBeTransparent()];case 7:return o=c.sent(),this.videoSink=new(0,u.CanvasSink)(i,{poolSize:2,fit:"contain",alpha:o}),this.width=i.displayWidth,this.height=i.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,null==t||t(),[4,this.resetIterator(0)];case 8:return c.sent(),[2]}})}).call(this)}},{key:"handleNoVideoTrack",value:function(){this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster()}},{key:"resetIterator",value:function(e){return(0,i._)(function(){var t,r,n,a;return(0,c._)(this,function(i){switch(i.label){case 0:return[4,this.stopIterator()];case 1:if(i.sent(),!this.videoSink)return[2];return this.videoIterator=this.videoSink.canvases(e),[4,this.videoIterator.next()];case 2:return r=null!=(t=i.sent().value)?t:null,[4,this.videoIterator.next()];case 3:return a=null!=(n=i.sent().value)?n:null,this.nextFrame=a,r?(this.ctx.drawImage(r.canvas,0,0),this.events.emit("loadeddata")):this.drawPoster(),[2]}})}).call(this)}},{key:"updateNextFrame",value:function(e){return(0,i._)(function(){var t,r,n,a;return(0,c._)(this,function(i){switch(i.label){case 0:if(!this.videoIterator||this.isFetching)return[2];this.isFetching=!0,i.label=1;case 1:i.trys.push([1,,5,6]),i.label=2;case 2:return[4,this.videoIterator.next()];case 3:if(!(r=null!=(t=i.sent().value)?t:null)||e!==this.asyncId)return[2];if(n=this.audioClock.currentTime,a=this.dropLateFrames?Math.max(.06,this.avSyncTolerance/Math.max(1,this.playbackRate)):0,this.dropLateFrames&&r.timestamp<n-a)return[3,2];if(!(r.timestamp<=n+a))return this.nextFrame=r,[2];if(this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.ctx.drawImage(r.canvas,0,0),!this.dropLateFrames&&r.timestamp>n)return this.nextFrame=null,[2];return[3,2];case 4:return[3,6];case 5:return this.isFetching=!1,[7];case 6:return[2]}})}).call(this)}},{key:"render",value:function(){var e=this;if(this.audioClock){var t=this.audioClock.currentTime,r=Date.now();if(r-this.lastTimeUpdate>=this.timeupdateInterval&&(this.events.emit("timeupdate"),this.lastTimeUpdate=r),Number.isFinite(this.duration)&&t>=this.duration){this.stop(),this.stalled=!1,this.events.emit("ended"),this.events.emit("pause"),this.events.emit("canplay");return}this.nextFrame&&this.nextFrame.timestamp<=t?(this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.ctx.drawImage(this.nextFrame.canvas,0,0),this.nextFrame=null,this.updateNextFrame(this.asyncId),this.stalled&&(this.events.emit("canplay"),this.events.emit("playing"),this.stalled=!1)):!this.nextFrame&&(this.updateNextFrame(this.asyncId),!this.nextFrame&&Number.isFinite(this.duration)&&t<this.duration&&!this.stalled&&(this.stalled=!0,this.events.emit("waiting"))),this.rafId=requestAnimationFrame(function(){return e.render()})}}},{key:"start",value:function(e){var t=this;this.audioClock=e,this.asyncId++,this.stalled=!1,this.updateNextFrame(this.asyncId),this.rafId=requestAnimationFrame(function(){return t.render()})}},{key:"stop",value:function(){cancelAnimationFrame(this.rafId)}},{key:"seek",value:function(e){return(0,i._)(function(){return(0,c._)(this,function(t){switch(t.label){case 0:return this.asyncId++,[4,this.resetIterator(e)];case 1:return 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