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

/*!
 * artplayer-proxy-mediabunny.js v1.0.0
 * Github: https://github.com/zhw2590582/ArtPlayer
 * (c) 2017-2025 Harvey Zack
 * Released under the MIT License.
 */
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r=e.filePos,n=(0,S.readBoxHeader)(e);if(!n)return!1;var a=e.filePos,i=r+n.totalSize;switch(n.name){case"mdia":case"minf":case"dinf":case"mfra":case"edts":case"wave":this.readContiguousBoxes(e.slice(a,n.contentSize));break;case"mvhd":var s=(0,T.readU8)(e);e.skip(3),1===s?(e.skip(16),this.movieTimescale=(0,T.readU32Be)(e),this.movieDurationInTimescale=(0,T.readU64Be)(e)):(e.skip(8),this.movieTimescale=(0,T.readU32Be)(e),this.movieDurationInTimescale=(0,T.readU32Be)(e));break;case"trak":var o={id:-1,demuxer:this,inputTrack:null,disposition:(0,d._)({},x.DEFAULT_TRACK_DISPOSITION),info:null,timescale:-1,durationInMovieTimescale:-1,durationInMediaTimescale:-1,rotation:0,internalCodecId:null,name:null,languageCode:_.UNDETERMINED_LANGUAGE,sampleTableByteOffset:-1,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:0,editListOffset:0};this.currentTrack=o,this.readContiguousBoxes(e.slice(a,n.contentSize)),-1!==o.id&&-1!==o.timescale&&null!==o.info&&("video"===o.info.type&&-1!==o.info.width?(o.inputTrack=new(0,k.InputVideoTrack)(this.input,new j(o)),this.tracks.push(o)):"audio"===o.info.type&&-1!==o.info.numberOfChannels&&(o.inputTrack=new(0,k.InputAudioTrack)(this.input,new P(o)),this.tracks.push(o))),this.currentTrack=null;break;case"tkhd":var c=this.currentTrack;if(!c)break;var u=(0,T.readU8)(e),l=(0,T.readU24Be)(e);if(c.disposition.default=!!(1&l),0===u)e.skip(8),c.id=(0,T.readU32Be)(e),e.skip(4),c.durationInMovieTimescale=(0,T.readU32Be)(e);else if(1===u)e.skip(16),c.id=(0,T.readU32Be)(e),e.skip(4),c.durationInMovieTimescale=(0,T.readU64Be)(e);else throw Error("Incorrect track header version ".concat(u,"."));e.skip(16);var f=[(0,S.readFixed_16_16)(e),(0,S.readFixed_16_16)(e),(0,S.readFixed_2_30)(e),(0,S.readFixed_16_16)(e),(0,S.readFixed_16_16)(e),(0,S.readFixed_2_30)(e),(0,S.readFixed_16_16)(e),(0,S.readFixed_16_16)(e),(0,S.readFixed_2_30)(e)],h=(0,_.normalizeRotation)((0,_.roundToMultiple)(F(f),90));(0,_.assert)(0===h||90===h||180===h||270===h),c.rotation=h;break;case"elst":var m=this.currentTrack;if(!m)break;var b=(0,T.readU8)(e);e.skip(3);for(var y=!1,w=0,I=(0,T.readU32Be)(e),E=0;E<I;E++){var C=1===b?(0,T.readU64Be)(e):(0,T.readU32Be)(e),A=1===b?(0,T.readI64Be)(e):(0,T.readI32Be)(e),B=(0,S.readFixed_16_16)(e);if(0!==C){if(y){console.warn("Unsupported edit list: multiple edits are not currently supported. Only using first edit.");break}if(-1===A){w+=C;continue}if(1!==B){console.warn("Unsupported edit list entry: media rate must be 1.");break}m.editListPreviousSegmentDurations=w,m.editListOffset=A,y=!0}}break;case"mdhd":var M=this.currentTrack;if(!M)break;var R=(0,T.readU8)(e);e.skip(3),0===R?(e.skip(8),M.timescale=(0,T.readU32Be)(e),M.durationInMediaTimescale=(0,T.readU32Be)(e)):1===R&&(e.skip(16),M.timescale=(0,T.readU32Be)(e),M.durationInMediaTimescale=(0,T.readU64Be)(e));var U=(0,T.readU16Be)(e);if(U>0){M.languageCode="";for(var O=0;O<3;O++)M.languageCode=String.fromCharCode(96+(31&U))+M.languageCode,U>>=5;(0,_.isIso639Dash2LanguageCode)(M.languageCode)||(M.languageCode=_.UNDETERMINED_LANGUAGE)}break;case"hdlr":var L=this.currentTrack;if(!L)break;e.skip(8);var N=(0,T.readAscii)(e,4);"vide"===N?L.info={type:"video",width:-1,height:-1,codec:null,codecDescription:null,colorSpace:null,avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null}:"soun"===N&&(L.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null});break;case"stbl":var z=this.currentTrack;if(!z)break;z.sampleTableByteOffset=r,this.readContiguousBoxes(e.slice(a,n.contentSize));break;case"stsd":var V=this.currentTrack;if(!V||null===V.info||V.sampleTable)break;var H=(0,T.readU8)(e);e.skip(3);for(var G=(0,T.readU32Be)(e),q=0;q<G;q++){var W=e.filePos,K=(0,S.readBoxHeader)(e);if(!K)break;V.internalCodecId=K.name;var X=K.name.toLowerCase();if("video"===V.info.type)"avc1"===X||"avc3"===X?(V.info.codec="avc",V.info.avcType="avc1"===X?1:3):"hvc1"===X||"hev1"===X?V.info.codec="hevc":"vp08"===X?V.info.codec="vp8":"vp09"===X?V.info.codec="vp9":"av01"===X?V.info.codec="av1":console.warn("Unsupported video codec (sample entry type '".concat(K.name,"').")),e.skip(24),V.info.width=(0,T.readU16Be)(e),V.info.height=(0,T.readU16Be)(e),e.skip(50),this.readContiguousBoxes(e.slice(e.filePos,W+K.totalSize-e.filePos));else{"mp4a"===X||("opus"===X?V.info.codec="opus":"flac"===X?V.info.codec="flac":"twos"===X||"sowt"===X||"raw "===X||"in24"===X||"in32"===X||"fl32"===X||"fl64"===X||"lpcm"===X||"ipcm"===X||"fpcm"===X||("ulaw"===X?V.info.codec="ulaw":"alaw"===X?V.info.codec="alaw":console.warn("Unsupported audio codec (sample entry type '".concat(K.name,"').")))),e.skip(8);var Z=(0,T.readU16Be)(e);e.skip(6);var Q=(0,T.readU16Be)(e),Y=(0,T.readU16Be)(e);e.skip(4);var J=(0,T.readU32Be)(e)/65536;if(0===H&&Z>0){if(1===Z)e.skip(4),Y=8*(0,T.readU32Be)(e),e.skip(8);else if(2===Z){e.skip(4),J=(0,T.readF64Be)(e),Q=(0,T.readU32Be)(e),e.skip(4),Y=(0,T.readU32Be)(e);var $=(0,T.readU32Be)(e);if(e.skip(8),"lpcm"===X){var ee=Y+7>>3,et=!!(1&$),er=!!(2&$),en=4&$?-1:0;Y>0&&Y<=64&&(et?32===Y&&(V.info.codec=er?"pcm-f32be":"pcm-f32"):en&1<<ee-1?1===ee?V.info.codec="pcm-s8":2===ee?V.info.codec=er?"pcm-s16be":"pcm-s16":3===ee?V.info.codec=er?"pcm-s24be":"pcm-s24":4===ee&&(V.info.codec=er?"pcm-s32be":"pcm-s32"):1===ee&&(V.info.codec="pcm-u8")),null===V.info.codec&&console.warn("Unsupported PCM format.")}}}"opus"===V.info.codec&&(J=p.OPUS_SAMPLE_RATE),V.info.numberOfChannels=Q,V.info.sampleRate=J,"twos"===X?8===Y?V.info.codec="pcm-s8":16===Y?V.info.codec="pcm-s16be":(console.warn("Unsupported sample size ".concat(Y," for codec 'twos'.")),V.info.codec=null):"sowt"===X?8===Y?V.info.codec="pcm-s8":16===Y?V.info.codec="pcm-s16":(console.warn("Unsupported sample size ".concat(Y," for codec 'sowt'.")),V.info.codec=null):"raw "===X?V.info.codec="pcm-u8":"in24"===X?V.info.codec="pcm-s24be":"in32"===X?V.info.codec="pcm-s32be":"fl32"===X?V.info.codec="pcm-f32be":"fl64"===X?V.info.codec="pcm-f64be":"ipcm"===X?V.info.codec="pcm-s16be":"fpcm"===X&&(V.info.codec="pcm-f32be"),this.readContiguousBoxes(e.slice(e.filePos,W+K.totalSize-e.filePos))}}break;case"avcC":var ea=this.currentTrack;if(!ea)break;(0,_.assert)(ea.info),ea.info.codecDescription=(0,T.readBytes)(e,n.contentSize);break;case"hvcC":var ei=this.currentTrack;if(!ei)break;(0,_.assert)(ei.info),ei.info.codecDescription=(0,T.readBytes)(e,n.contentSize);break;case"vpcC":var es,eo=this.currentTrack;if(!eo)break;(0,_.assert)((null==(es=eo.info)?void 0:es.type)==="video"),e.skip(4);var ec=(0,T.readU8)(e),eu=(0,T.readU8)(e),el=(0,T.readU8)(e),ed=(0,T.readU8)(e),ef=(0,T.readU8)(e),eh=(0,T.readU8)(e);eo.info.vp9CodecInfo={profile:ec,level:eu,bitDepth:el>>4,chromaSubsampling:el>>1&7,videoFullRangeFlag:1&el,colourPrimaries:ed,transferCharacteristics:ef,matrixCoefficients:eh};break;case"av1C":var em,ep=this.currentTrack;if(!ep)break;(0,_.assert)((null==(em=ep.info)?void 0:em.type)==="video"),e.skip(1);var eg=(0,T.readU8)(e),ev=eg>>5,eb=(0,T.readU8)(e),ek=eb>>6&1;ep.info.av1CodecInfo={profile:ev,level:31&eg,tier:eb>>7,bitDepth:2===ev&&ek?eb>>5&1?12:10:ek?10:8,monochrome:eb>>4&1,chromaSubsamplingX:eb>>3&1,chromaSubsamplingY:eb>>2&1,chromaSamplePosition:3&eb};break;case"colr":var e_,ey=this.currentTrack;if(!ey||((0,_.assert)((null==(e_=ey.info)?void 0:e_.type)==="video"),"nclx"!==(0,T.readAscii)(e,4)))break;var ew=(0,T.readU16Be)(e),eS=(0,T.readU16Be)(e),eT=(0,T.readU16Be)(e),ex=!!(128&(0,T.readU8)(e));ey.info.colorSpace={primaries:_.COLOR_PRIMARIES_MAP_INVERSE[ew],transfer:_.TRANSFER_CHARACTERISTICS_MAP_INVERSE[eS],matrix:_.MATRIX_COEFFICIENTS_MAP_INVERSE[eT],fullRange:ex};break;case"esds":var eI,eE=this.currentTrack;if(!eE)break;(0,_.assert)((null==(eI=eE.info)?void 0:eI.type)==="audio"),e.skip(4);var ej=(0,T.readU8)(e);(0,_.assert)(3===ej),(0,S.readIsomVariableInteger)(e),e.skip(2);var eP=(0,T.readU8)(e);if((128&eP)!=0&&e.skip(2),(64&eP)!=0){var eC=(0,T.readU8)(e);e.skip(eC)}(32&eP)!=0&&e.skip(2);var eA=(0,T.readU8)(e);(0,_.assert)(4===eA);var eB=(0,S.readIsomVariableInteger)(e),eM=e.filePos,eD=(0,T.readU8)(e);if(64===eD||103===eD?(eE.info.codec="aac",eE.info.aacCodecInfo={isMpeg2:103===eD}):105===eD||107===eD?eE.info.codec="mp3":221===eD?eE.info.codec="vorbis":console.warn("Unsupported audio codec (objectTypeIndication ".concat(eD,") - discarding track.")),e.skip(12),eB>e.filePos-eM){var eF=(0,T.readU8)(e);(0,_.assert)(5===eF);var eR=(0,S.readIsomVariableInteger)(e);if(eE.info.codecDescription=(0,T.readBytes)(e,eR),"aac"===eE.info.codec){var eU=(0,p.parseAacAudioSpecificConfig)(eE.info.codecDescription);null!==eU.numberOfChannels&&(eE.info.numberOfChannels=eU.numberOfChannels),null!==eU.sampleRate&&(eE.info.sampleRate=eU.sampleRate)}}break;case"enda":var eO,eL=this.currentTrack;if(!eL)break;(0,_.assert)((null==(eO=eL.info)?void 0:eO.type)==="audio"),255&(0,T.readU16Be)(e)&&("pcm-s16be"===eL.info.codec?eL.info.codec="pcm-s16":"pcm-s24be"===eL.info.codec?eL.info.codec="pcm-s24":"pcm-s32be"===eL.info.codec?eL.info.codec="pcm-s32":"pcm-f32be"===eL.info.codec?eL.info.codec="pcm-f32":"pcm-f64be"===eL.info.codec&&(eL.info.codec="pcm-f64"));break;case"pcmC":var eN,ez=this.currentTrack;if(!ez)break;(0,_.assert)((null==(eN=ez.info)?void 0:eN.type)==="audio"),e.skip(4);var eV=!!(1&(0,T.readU8)(e)),eH=(0,T.readU8)(e);"pcm-s16be"===ez.info.codec?eV?16===eH?ez.info.codec="pcm-s16":24===eH?ez.info.codec="pcm-s24":32===eH?ez.info.codec="pcm-s32":(console.warn("Invalid ipcm sample size ".concat(eH,".")),ez.info.codec=null):16===eH?ez.info.codec="pcm-s16be":24===eH?ez.info.codec="pcm-s24be":32===eH?ez.info.codec="pcm-s32be":(console.warn("Invalid ipcm sample size ".concat(eH,".")),ez.info.codec=null):"pcm-f32be"===ez.info.codec&&(eV?32===eH?ez.info.codec="pcm-f32":64===eH?ez.info.codec="pcm-f64":(console.warn("Invalid fpcm sample size ".concat(eH,".")),ez.info.codec=null):32===eH?ez.info.codec="pcm-f32be":64===eH?ez.info.codec="pcm-f64be":(console.warn("Invalid fpcm sample size ".concat(eH,".")),ez.info.codec=null));break;case"dOps":var eG,eq,eW=this.currentTrack;if(!eW)break;(0,_.assert)((null==(eG=eW.info)?void 0:eG.type)==="audio"),e.skip(1);var eK=(0,T.readU8)(e),eX=(0,T.readU16Be)(e),eZ=(0,T.readU32Be)(e),eQ=(0,T.readI16Be)(e),eY=(0,T.readU8)(e);eq=0!==eY?(0,T.readBytes)(e,2+eK):new Uint8Array(0);var eJ=new Uint8Array(19+eq.byteLength),e$=new DataView(eJ.buffer);e$.setUint32(0,0x4f707573,!1),e$.setUint32(4,0x48656164,!1),e$.setUint8(8,1),e$.setUint8(9,eK),e$.setUint16(10,eX,!0),e$.setUint32(12,eZ,!0),e$.setInt16(16,eQ,!0),e$.setUint8(18,eY),eJ.set(eq,19),eW.info.codecDescription=eJ,eW.info.numberOfChannels=eK;break;case"dfLa":var e0,e1=this.currentTrack;if(!e1)break;(0,_.assert)((null==(e0=e1.info)?void 0:e0.type)==="audio"),e.skip(4);for(var e2=e.filePos;e.filePos<i;){var e3=(0,T.readU8)(e),e4=(0,T.readU24Be)(e);if((127&e3)===g.FlacBlockType.STREAMINFO){e.skip(10);var e8=(0,T.readU32Be)(e),e6=e8>>>12,e5=(e8>>9&7)+1;e1.info.sampleRate=e6,e1.info.numberOfChannels=e5,e.skip(20)}else e.skip(e4);if(128&e3)break}var e7=e.filePos;e.filePos=e2;var e9=(0,T.readBytes)(e,e7-e2),te=new Uint8Array(4+e9.byteLength);new DataView(te.buffer).setUint32(0,0x664c6143,!1),te.set(e9,4),e1.info.codecDescription=te;break;case"stts":var tt=this.currentTrack;if(!tt||!tt.sampleTable)break;e.skip(4);for(var tr=(0,T.readU32Be)(e),tn=0,ta=0,ti=0;ti<tr;ti++){var ts=(0,T.readU32Be)(e),to=(0,T.readU32Be)(e);tt.sampleTable.sampleTimingEntries.push({startIndex:tn,startDecodeTimestamp:ta,count:ts,delta:to}),tn+=ts,ta+=ts*to}break;case"ctts":var tc=this.currentTrack;if(!tc||!tc.sampleTable)break;e.skip(4);for(var tu=(0,T.readU32Be)(e),tl=0,td=0;td<tu;td++){var tf=(0,T.readU32Be)(e),th=(0,T.readI32Be)(e);tc.sampleTable.sampleCompositionTimeOffsets.push({startIndex:tl,count:tf,offset:th}),tl+=tf}break;case"stsz":var tm=this.currentTrack;if(!tm||!tm.sampleTable)break;e.skip(4);var tp=(0,T.readU32Be)(e),tg=(0,T.readU32Be)(e);if(0===tp)for(var tv=0;tv<tg;tv++){var tb=(0,T.readU32Be)(e);tm.sampleTable.sampleSizes.push(tb)}else tm.sampleTable.sampleSizes.push(tp);break;case"stz2":var tk=this.currentTrack;if(!tk||!tk.sampleTable)break;e.skip(4),e.skip(3);for(var t_=(0,T.readU8)(e),ty=(0,T.readU32Be)(e),tw=(0,T.readBytes)(e,Math.ceil(ty*t_/8)),tS=new(0,_.Bitstream)(tw),tT=0;tT<ty;tT++){var tx=tS.readBits(t_);tk.sampleTable.sampleSizes.push(tx)}break;case"stss":var tI=this.currentTrack;if(!tI||!tI.sampleTable)break;e.skip(4),tI.sampleTable.keySampleIndices=[];for(var tE=(0,T.readU32Be)(e),tj=0;tj<tE;tj++){var tP=(0,T.readU32Be)(e)-1;tI.sampleTable.keySampleIndices.push(tP)}0!==tI.sampleTable.keySampleIndices[0]&&tI.sampleTable.keySampleIndices.unshift(0);break;case"stsc":var tC=this.currentTrack;if(!tC||!tC.sampleTable)break;e.skip(4);for(var tA=(0,T.readU32Be)(e),tB=0;tB<tA;tB++){var tM=(0,T.readU32Be)(e)-1,tD=(0,T.readU32Be)(e),tF=(0,T.readU32Be)(e);tC.sampleTable.sampleToChunk.push({startSampleIndex:-1,startChunkIndex:tM,samplesPerChunk:tD,sampleDescriptionIndex:tF})}for(var tR=0,tU=0;tU<tC.sampleTable.sampleToChunk.length;tU++)tC.sampleTable.sampleToChunk[tU].startSampleIndex=tR,tU<tC.sampleTable.sampleToChunk.length-1&&(tR+=(tC.sampleTable.sampleToChunk[tU+1].startChunkIndex-tC.sampleTable.sampleToChunk[tU].startChunkIndex)*tC.sampleTable.sampleToChunk[tU].samplesPerChunk);break;case"stco":var tO=this.currentTrack;if(!tO||!tO.sampleTable)break;e.skip(4);for(var tL=(0,T.readU32Be)(e),tN=0;tN<tL;tN++){var tz=(0,T.readU32Be)(e);tO.sampleTable.chunkOffsets.push(tz)}break;case"co64":var tV=this.currentTrack;if(!tV||!tV.sampleTable)break;e.skip(4);for(var tH=(0,T.readU32Be)(e),tG=0;tG<tH;tG++){var tq=(0,T.readU64Be)(e);tV.sampleTable.chunkOffsets.push(tq)}break;case"mvex":this.isFragmented=!0,this.readContiguousBoxes(e.slice(a,n.contentSize));break;case"mehd":var tW=(0,T.readU8)(e);e.skip(3);var tK=1===tW?(0,T.readU64Be)(e):(0,T.readU32Be)(e);this.movieDurationInTimescale=tK;break;case"trex":e.skip(4);var tX=(0,T.readU32Be)(e),tZ=(0,T.readU32Be)(e),tQ=(0,T.readU32Be)(e),tY=(0,T.readU32Be)(e),tJ=(0,T.readU32Be)(e);this.fragmentTrackDefaults.push({trackId:tX,defaultSampleDescriptionIndex:tZ,defaultSampleDuration:tQ,defaultSampleSize:tY,defaultSampleFlags:tJ});break;case"tfra":var t$=(0,T.readU8)(e);e.skip(3);var t0=(0,T.readU32Be)(e),t1=this.tracks.find(function(e){return e.id===t0});if(!t1)break;for(var t2=(0,T.readU32Be)(e),t3=[T.readU8,T.readU16Be,T.readU24Be,T.readU32Be],t4=t3[(48&t2)>>4],t8=t3[(12&t2)>>2],t6=t3[3&t2],t5=(0,T.readU32Be)(e),t7=0;t7<t5;t7++){var t9=1===t$?(0,T.readU64Be)(e):(0,T.readU32Be)(e),re=1===t$?(0,T.readU64Be)(e):(0,T.readU32Be)(e);t4(e),t8(e),t6(e),t1.fragmentLookupTable.push({timestamp:t9,moofOffset:re})}t1.fragmentLookupTable.sort(function(e,r){return e.timestamp-r.timestamp});for(var rt=0;rt<t1.fragmentLookupTable.length-1;rt++){var rr=t1.fragmentLookupTable[rt],rn=t1.fragmentLookupTable[rt+1];rr.timestamp===rn.timestamp&&(t1.fragmentLookupTable.splice(rt+1,1),rt--)}break;case"moof":this.currentFragment={moofOffset:r,moofSize:n.totalSize,implicitBaseDataOffset:r,trackData:new Map},this.readContiguousBoxes(e.slice(a,n.contentSize)),this.lastReadFragment=this.currentFragment,this.currentFragment=null;break;case"traf":if((0,_.assert)(this.currentFragment),this.readContiguousBoxes(e.slice(a,n.contentSize)),this.currentTrack){var ra=this.currentFragment.trackData.get(this.currentTrack.id);if(ra){var ri=this.currentTrack.currentFragmentState;(0,_.assert)(ri),null!==ri.startTimestamp&&(D(ra,ri.startTimestamp),ra.startTimestampIsFinal=!0)}this.currentTrack.currentFragmentState=null,this.currentTrack=null}break;case"tfhd":(0,_.assert)(this.currentFragment),e.skip(1);var rs,ro,rc,ru,rl=(0,T.readU24Be)(e),rd=(0,T.readU32Be)(e),rf=this.tracks.find(function(e){return e.id===rd});if(!rf)break;var rh=this.fragmentTrackDefaults.find(function(e){return e.trackId===rd});this.currentTrack=rf,rf.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:null!=(rs=null==rh?void 0:rh.defaultSampleDescriptionIndex)?rs:null,defaultSampleDuration:null!=(ro=null==rh?void 0:rh.defaultSampleDuration)?ro:null,defaultSampleSize:null!=(rc=null==rh?void 0:rh.defaultSampleSize)?rc:null,defaultSampleFlags:null!=(ru=null==rh?void 0:rh.defaultSampleFlags)?ru:null,startTimestamp:null},1&rl?rf.currentFragmentState.baseDataOffset=(0,T.readU64Be)(e):131072&rl&&(rf.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),2&rl&&(rf.currentFragmentState.sampleDescriptionIndex=(0,T.readU32Be)(e)),8&rl&&(rf.currentFragmentState.defaultSampleDuration=(0,T.readU32Be)(e)),16&rl&&(rf.currentFragmentState.defaultSampleSize=(0,T.readU32Be)(e)),32&rl&&(rf.currentFragmentState.defaultSampleFlags=(0,T.readU32Be)(e)),65536&rl&&(rf.currentFragmentState.defaultSampleDuration=0);break;case"tfdt":var rm=this.currentTrack;if(!rm)break;(0,_.assert)(rm.currentFragmentState);var rp=(0,T.readU8)(e);e.skip(3);var rg=0===rp?(0,T.readU32Be)(e):(0,T.readU64Be)(e);rm.currentFragmentState.startTimestamp=rg;break;case"trun":var rv=this.currentTrack;if(!rv)break;if((0,_.assert)(this.currentFragment),(0,_.assert)(rv.currentFragmentState),this.currentFragment.trackData.has(rv.id)){console.warn("Can't have two trun boxes for the same track in one fragment. Ignoring...");break}var rb=(0,T.readU8)(e),rk=(0,T.readU24Be)(e),r_=!!(256&rk),ry=!!(512&rk),rw=!!(1024&rk),rS=!!(2048&rk),rT=(0,T.readU32Be)(e),rx=rv.currentFragmentState.baseDataOffset;1&rk&&(rx+=(0,T.readI32Be)(e));var rI=null;4&rk&&(rI=(0,T.readU32Be)(e));var rE=rx;if(0===rT){this.currentFragment.implicitBaseDataOffset=rE;break}var rj=0,rP={track:rv,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1};this.currentFragment.trackData.set(rv.id,rP);for(var rC=0;rC<rT;rC++){var rA=void 0;r_?rA=(0,T.readU32Be)(e):((0,_.assert)(null!==rv.currentFragmentState.defaultSampleDuration),rA=rv.currentFragmentState.defaultSampleDuration);var rB=void 0;ry?rB=(0,T.readU32Be)(e):((0,_.assert)(null!==rv.currentFragmentState.defaultSampleSize),rB=rv.currentFragmentState.defaultSampleSize);var rM=void 0;rw?rM=(0,T.readU32Be)(e):((0,_.assert)(null!==rv.currentFragmentState.defaultSampleFlags),rM=rv.currentFragmentState.defaultSampleFlags),0===rC&&null!==rI&&(rM=rI);var rD=0;rS&&(rD=0===rb?(0,T.readU32Be)(e):(0,T.readI32Be)(e));var rF=!(65536&rM);rP.samples.push({presentationTimestamp:rj+rD,duration:rA,byteOffset:rE,byteSize:rB,isKeyFrame:rF}),rE+=rB,rj+=rA}rP.presentationTimestamps=rP.samples.map(function(e,r){return{presentationTimestamp:e.presentationTimestamp,sampleIndex:r}}).sort(function(e,r){return e.presentationTimestamp-r.presentationTimestamp});for(var rR=0;rR<rP.presentationTimestamps.length;rR++){var rU=rP.presentationTimestamps[rR],rO=rP.samples[rU.sampleIndex];null===rP.firstKeyFrameTimestamp&&rO.isKeyFrame&&(rP.firstKeyFrameTimestamp=rO.presentationTimestamp),rR<rP.presentationTimestamps.length-1&&(rO.duration=rP.presentationTimestamps[rR+1].presentationTimestamp-rU.presentationTimestamp)}var rL=rP.samples[rP.presentationTimestamps[0].sampleIndex],rN=rP.samples[(0,_.last)(rP.presentationTimestamps).sampleIndex];rP.startTimestamp=rL.presentationTimestamp,rP.endTimestamp=rN.presentationTimestamp+rN.duration,this.currentFragment.implicitBaseDataOffset=rE;break;case"udta":var rz=this.iterateContiguousBoxes(e.slice(a,n.contentSize)),rV=!0,rH=!1,rG=void 0;try{for(var rq,rW=rz[Symbol.iterator]();!(rV=(rq=rW.next()).done);rV=!0){var rK,rX,rZ=rq.value,rQ=rZ.boxInfo,rY=rZ.slice;if("meta"!==rQ.name&&!this.currentTrack){var rJ,r$,r0,r1,r2,r3=rY.filePos;null!=(rJ=this.metadataTags).raw||(rJ.raw={}),"©"===rQ.name[0]?null!=(r$=this.metadataTags.raw)[r0=rQ.name]||(r$[r0]=(0,S.readMetadataStringShort)(rY)):null!=(r1=this.metadataTags.raw)[r2=rQ.name]||(r1[r2]=(0,T.readBytes)(rY,rQ.contentSize)),rY.filePos=r3}switch(rQ.name){case"meta":rY.skip(-rQ.headerSize),this.traverseBox(rY);break;case"©nam":case"name":this.currentTrack?this.currentTrack.name=_.textDecoder.decode((0,T.readBytes)(rY,rQ.contentSize)):null!=(r4=this.metadataTags).title||(r4.title=(0,S.readMetadataStringShort)(rY));break;case"©des":this.currentTrack||null!=(r8=this.metadataTags).description||(r8.description=(0,S.readMetadataStringShort)(rY));break;case"©ART":this.currentTrack||null!=(r6=this.metadataTags).artist||(r6.artist=(0,S.readMetadataStringShort)(rY));break;case"©alb":this.currentTrack||null!=(r5=this.metadataTags).album||(r5.album=(0,S.readMetadataStringShort)(rY));break;case"albr":this.currentTrack||null!=(r7=this.metadataTags).albumArtist||(r7.albumArtist=(0,S.readMetadataStringShort)(rY));break;case"©gen":this.currentTrack||null!=(r9=this.metadataTags).genre||(r9.genre=(0,S.readMetadataStringShort)(rY));break;case"©day":if(!this.currentTrack){var r4,r8,r6,r5,r7,r9,ne,nt=new Date((0,S.readMetadataStringShort)(rY));Number.isNaN(nt.getTime())||null!=(ne=this.metadataTags).date||(ne.date=nt)}break;case"©cmt":this.currentTrack||null!=(rK=this.metadataTags).comment||(rK.comment=(0,S.readMetadataStringShort)(rY));break;case"©lyr":this.currentTrack||null!=(rX=this.metadataTags).lyrics||(rX.lyrics=(0,S.readMetadataStringShort)(rY))}}}catch(e){rH=!0,rG=e}finally{try{rV||null==rW.return||rW.return()}finally{if(rH)throw rG}}break;case"meta":if(this.currentTrack)break;var nr=(0,T.readU32Be)(e);this.currentMetadataKeys=new Map,0!==nr?this.readContiguousBoxes(e.slice(a,n.contentSize)):this.readContiguousBoxes(e.slice(a+4,n.contentSize-4)),this.currentMetadataKeys=null;break;case"keys":if(!this.currentMetadataKeys)break;e.skip(4);for(var nn=(0,T.readU32Be)(e),na=0;na<nn;na++){var ni=(0,T.readU32Be)(e);e.skip(4);var ns=_.textDecoder.decode((0,T.readBytes)(e,ni-8));this.currentMetadataKeys.set(na+1,ns)}break;case"ilst":if(!this.currentMetadataKeys)break;var no=this.iterateContiguousBoxes(e.slice(a,n.contentSize)),nc=!0,nu=!1,nl=void 0;try{for(var nd,nf=no[Symbol.iterator]();!(nc=(nd=nf.next()).done);nc=!0){var nh=nd.value,nm=nh.boxInfo,np=nh.slice,ng=nm.name,nv=(ng.charCodeAt(0)<<24)+(ng.charCodeAt(1)<<16)+(ng.charCodeAt(2)<<8)+ng.charCodeAt(3);this.currentMetadataKeys.has(nv)&&(ng=this.currentMetadataKeys.get(nv));var nb=(0,S.readDataBox)(np);switch(null!=(nk=this.metadataTags).raw||(nk.raw={}),null!=(n_=this.metadataTags.raw)[ny=ng]||(n_[ny]=nb),ng){case"©nam":case"titl":case"com.apple.quicktime.title":case"title":"string"==typeof nb&&(null!=(nw=this.metadataTags).title||(nw.title=nb));break;case"©des":case"desc":case"dscp":case"com.apple.quicktime.description":case"description":"string"==typeof nb&&(null!=(nS=this.metadataTags).description||(nS.description=nb));break;case"©ART":case"com.apple.quicktime.artist":case"artist":"string"==typeof nb&&(null!=(nT=this.metadataTags).artist||(nT.artist=nb));break;case"©alb":case"albm":case"com.apple.quicktime.album":case"album":"string"==typeof nb&&(null!=(nx=this.metadataTags).album||(nx.album=nb));break;case"aART":case"album_artist":"string"==typeof nb&&(null!=(nI=this.metadataTags).albumArtist||(nI.albumArtist=nb));break;case"©cmt":case"com.apple.quicktime.comment":case"comment":"string"==typeof nb&&(null!=(nE=this.metadataTags).comment||(nE.comment=nb));break;case"©gen":case"gnre":case"com.apple.quicktime.genre":case"genre":"string"==typeof nb&&(null!=(nj=this.metadataTags).genre||(nj.genre=nb));break;case"©lyr":case"lyrics":"string"==typeof nb&&(null!=(nP=this.metadataTags).lyrics||(nP.lyrics=nb));break;case"©day":case"rldt":case"com.apple.quicktime.creationdate":case"date":if("string"==typeof nb){var nk,n_,ny,nw,nS,nT,nx,nI,nE,nj,nP,nC,nA=new Date(nb);Number.isNaN(nA.getTime())||null!=(nC=this.metadataTags).date||(nC.date=nA)}break;case"covr":case"com.apple.quicktime.artwork":nb instanceof x.RichImageData?(null!=(nB=this.metadataTags).images||(nB.images=[]),this.metadataTags.images.push({data:nb.data,kind:"coverFront",mimeType:nb.mimeType})):nb instanceof Uint8Array&&(null!=(nM=this.metadataTags).images||(nM.images=[]),this.metadataTags.images.push({data:nb,kind:"coverFront",mimeType:"image/*"}));break;case"track":if("string"==typeof nb){var nB,nM,nD,nF,nR=nb.split("/"),nU=Number.parseInt(nR[0],10),nO=nR[1]&&Number.parseInt(nR[1],10);Number.isInteger(nU)&&nU>0&&(null!=(nD=this.metadataTags).trackNumber||(nD.trackNumber=nU)),nO&&Number.isInteger(nO)&&nO>0&&(null!=(nF=this.metadataTags).tracksTotal||(nF.tracksTotal=nO))}break;case"trkn":if(nb instanceof Uint8Array&&nb.length>=6){var nL,nN,nz=(0,_.toDataView)(nb),nV=nz.getUint16(2,!1),nH=nz.getUint16(4,!1);nV>0&&(null!=(nL=this.metadataTags).trackNumber||(nL.trackNumber=nV)),nH>0&&(null!=(nN=this.metadataTags).tracksTotal||(nN.tracksTotal=nH))}break;case"disc":case"disk":if(nb instanceof Uint8Array&&nb.length>=6){var nG,nq,nW=(0,_.toDataView)(nb),nK=nW.getUint16(2,!1),nX=nW.getUint16(4,!1);nK>0&&(null!=(nG=this.metadataTags).discNumber||(nG.discNumber=nK)),nX>0&&(null!=(nq=this.metadataTags).discsTotal||(nq.discsTotal=nX))}}}}catch(e){nu=!0,nl=e}finally{try{nc||null==nf.return||nf.return()}finally{if(nu)throw nl}}}return e.filePos=i,!0}}]),r}(b.Demuxer),E=function(){"use strict";function e(r){(0,c._)(this,e),this.internalTrack=r,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}return(0,u._)(e,[{key:"getId",value:function(){return this.internalTrack.id}},{key:"getCodec",value:function(){throw Error("Not implemented on base class.")}},{key:"getInternalCodecId",value:function(){return this.internalTrack.internalCodecId}},{key:"getName",value:function(){return this.internalTrack.name}},{key:"getLanguageCode",value:function(){return this.internalTrack.languageCode}},{key:"getTimeResolution",value:function(){return this.internalTrack.timescale}},{key:"getDisposition",value:function(){return this.internalTrack.disposition}},{key:"computeDuration",value:function(){return(0,s._)(function(){var e,r,n;return(0,m._)(this,function(a){switch(a.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(r=null==(e=a.sent())?void 0:e.timestamp)?r:0)+(null!=(n=null==e?void 0:e.duration)?n:0)]}})}).call(this)}},{key:"getFirstTimestamp",value:function(){return(0,s._)(function(){var e,r;return(0,m._)(this,function(n){switch(n.label){case 0:return[4,this.getFirstPacket({metadataOnly:!0})];case 1:return[2,null!=(r=null==(e=n.sent())?void 0:e.timestamp)?r:0]}})}).call(this)}},{key:"getFirstPacket",value:function(e){return(0,s._)(function(){var r,n;return(0,m._)(this,function(a){switch(a.label){case 0:return r=this,[4,this.fetchPacketForSampleIndex(0,e)];case 1:if((n=a.sent())||!this.internalTrack.demuxer.isFragmented)return[2,n];return[2,this.performFragmentedLookup(null,function(e){return e.trackData.get(r.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,e)]}})}).call(this)}},{key:"mapTimestampIntoTimescale",value:function(e){return(0,_.roundIfAlmostInteger)(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}},{key:"getPacket",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o;return(0,m._)(this,function(c){switch(c.label){case 0:return n=this,a=this.mapTimestampIntoTimescale(e),s=C(i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a),[4,this.fetchPacketForSampleIndex(s,r)];case 1:if(o=c.sent(),!R(i)||!this.internalTrack.demuxer.isFragmented)return[2,o];return[2,this.performFragmentedLookup(null,function(e){var r=e.trackData.get(n.internalTrack.id);if(!r)return{sampleIndex:-1,correctSampleFound:!1};var i=(0,_.binarySearchLessOrEqual)(r.presentationTimestamps,a,function(e){return e.presentationTimestamp});return{sampleIndex:-1!==i?r.presentationTimestamps[i].sampleIndex:-1,correctSampleFound:-1!==i&&a<r.endTimestamp}},a,a,r)]}})}).call(this)}},{key:"getNextPacket",value:function(e,r){return(0,s._)(function(){var n,a,i;return(0,m._)(this,function(s){if(n=this,void 0!==(a=this.packetToSampleIndex.get(e)))return[2,this.fetchPacketForSampleIndex(a+1,r)];if(void 0===(i=this.packetToFragmentLocation.get(e)))throw Error("Packet was not created from this track.");return[2,this.performFragmentedLookup(i.fragment,function(e){if(e===i.fragment){var r=e.trackData.get(n.internalTrack.id);if(i.sampleIndex+1<r.samples.length)return{sampleIndex:i.sampleIndex+1,correctSampleFound:!0}}else if(e.trackData.get(n.internalTrack.id))return{sampleIndex:0,correctSampleFound:!0};return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,r)]})}).call(this)}},{key:"getKeyPacket",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o;return(0,m._)(this,function(c){switch(c.label){case 0:return n=this,a=this.mapTimestampIntoTimescale(e),s=A(i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a),[4,this.fetchPacketForSampleIndex(s,r)];case 1:if(o=c.sent(),!R(i)||!this.internalTrack.demuxer.isFragmented)return[2,o];return[2,this.performFragmentedLookup(null,function(e){var r=e.trackData.get(n.internalTrack.id);if(!r)return{sampleIndex:-1,correctSampleFound:!1};var i=(0,_.findLastIndex)(r.presentationTimestamps,function(e){return r.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=a});return{sampleIndex:-1!==i?r.presentationTimestamps[i].sampleIndex:-1,correctSampleFound:-1!==i&&a<r.endTimestamp}},a,a,r)]}})}).call(this)}},{key:"getNextKeyPacket",value:function(e,r){return(0,s._)(function(){var n,a,i,s;return(0,m._)(this,function(o){if(n=this,void 0!==(a=this.packetToSampleIndex.get(e)))return i=M(this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a),[2,this.fetchPacketForSampleIndex(i,r)];if(void 0===(s=this.packetToFragmentLocation.get(e)))throw Error("Packet was not created from this track.");return[2,this.performFragmentedLookup(s.fragment,function(e){if(e===s.fragment){var r=e.trackData.get(n.internalTrack.id).samples.findIndex(function(e,r){return e.isKeyFrame&&r>s.sampleIndex});if(-1!==r)return{sampleIndex:r,correctSampleFound:!0}}else{var a=e.trackData.get(n.internalTrack.id);if(a&&null!==a.firstKeyFrameTimestamp){var i=a.samples.findIndex(function(e){return e.isKeyFrame});return(0,_.assert)(-1!==i),{sampleIndex:i,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,r)]})}).call(this)}},{key:"fetchPacketForSampleIndex",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o,c;return(0,m._)(this,function(u){switch(u.label){case 0:if(-1===e||!(n=B(this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),e)))return[2,null];if(!r.metadataOnly)return[3,1];return a=y.PLACEHOLDER_DATA,[3,4];case 1:if(!((i=this.internalTrack.demuxer.reader.requestSlice(n.sampleOffset,n.sampleSize))instanceof Promise))return[3,3];return[4,i];case 2:i=u.sent(),u.label=3;case 3:(0,_.assert)(i),a=(0,T.readBytes)(i,n.sampleSize),u.label=4;case 4:return s=(n.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,o=n.duration/this.internalTrack.timescale,c=new(0,y.EncodedPacket)(a,n.isKeyFrame?"key":"delta",s,o,e,n.sampleSize),this.packetToSampleIndex.set(c,e),[2,c]}})}).call(this)}},{key:"fetchPacketInFragment",value:function(e,r,n){return(0,s._)(function(){var a,i,s,o,c,u;return(0,m._)(this,function(l){switch(l.label){case 0:if(-1===r)return[2,null];if(a=e.trackData.get(this.internalTrack.id).samples[r],(0,_.assert)(a),!n.metadataOnly)return[3,1];return i=y.PLACEHOLDER_DATA,[3,4];case 1:if(!((s=this.internalTrack.demuxer.reader.requestSlice(a.byteOffset,a.byteSize))instanceof Promise))return[3,3];return[4,s];case 2:s=l.sent(),l.label=3;case 3:(0,_.assert)(s),i=(0,T.readBytes)(s,a.byteSize),l.label=4;case 4:return o=(a.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,c=a.duration/this.internalTrack.timescale,u=new(0,y.EncodedPacket)(i,a.isKeyFrame?"key":"delta",o,c,e.moofOffset+r,a.byteSize),this.packetToFragmentLocation.set(u,{fragment:e,sampleIndex:r}),[2,u]}})}).call(this)}},{key:"performFragmentedLookup",value:function(e,r,n,a,i){return(0,s._)(function(){var s,o,c,u,l,d,f,h,p,g,b,k,y,w,T,x,I,E,j,P,C,A,B;return(0,m._)(this,function(m){switch(m.label){case 0:if(s=this.internalTrack.demuxer,o=null,c=null,u=-1,e){if(d=(l=r(e)).sampleIndex,l.correctSampleFound)return[2,this.fetchPacketInFragment(e,d,i)];-1!==d&&(c=e,u=d)}h=-1!==(f=(0,_.binarySearchLessOrEqual)(this.internalTrack.fragmentLookupTable,n,function(e){return e.timestamp}))?this.internalTrack.fragmentLookupTable[f]:null,g=-1!==(p=(0,_.binarySearchLessOrEqual)(this.internalTrack.fragmentPositionCache,n,function(e){return e.startTimestamp}))?this.internalTrack.fragmentPositionCache[p]:null,y=Math.max(null!=(b=null==h?void 0:h.moofOffset)?b:0,null!=(k=null==g?void 0:g.moofOffset)?k:0)||null,e?null===y||e.moofOffset>=y?(w=e.moofOffset+e.moofSize,o=e):w=y:w=null!=y?y:0,m.label=1;case 1:if(o&&(T=o.trackData.get(this.internalTrack.id))&&T.startTimestamp>a)return[3,6];if(!((x=s.reader.requestSliceRange(w,S.MIN_BOX_HEADER_SIZE,S.MAX_BOX_HEADER_SIZE))instanceof Promise))return[3,3];return[4,x];case 2:x=m.sent(),m.label=3;case 3:if(!x||(I=w,!(E=(0,S.readBoxHeader)(x))))return[3,6];if("moof"!==E.name)return[3,5];return[4,s.readFragment(I)];case 4:if(P=(j=r(o=m.sent())).sampleIndex,j.correctSampleFound)return[2,this.fetchPacketInFragment(o,P,i)];-1!==P&&(c=o,u=P),m.label=5;case 5:return w=I+E.totalSize,[3,1];case 6:if(h&&(!c||c.moofOffset<h.moofOffset))return C=this.internalTrack.fragmentLookupTable[f-1],(0,_.assert)(!C||C.timestamp<h.timestamp),B=null!=(A=null==C?void 0:C.timestamp)?A:-1/0,[2,this.performFragmentedLookup(null,r,B,a,i)];if(c)return[2,this.fetchPacketInFragment(c,u,i)];return[2,null]}})}).call(this)}}]),e}(),j=function(e){"use strict";function r(e){var n;return(0,c._)(this,r),(n=(0,o._)(this,r,[e])).decoderConfigPromise=null,n.internalTrack=e,n}return(0,l._)(r,e),(0,u._)(r,[{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.rotation}},{key:"getColorSpace",value:function(){return(0,s._)(function(){var e,r,n,a;return(0,m._)(this,function(i){return[2,{primaries:null==(e=this.internalTrack.info.colorSpace)?void 0:e.primaries,transfer:null==(r=this.internalTrack.info.colorSpace)?void 0:r.transfer,matrix:null==(n=this.internalTrack.info.colorSpace)?void 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L=i[0],N=new(0,p.Bitstream)(k(L));N.skipBits(16),(0,p.readExpGolomb)(N),(0,p.readExpGolomb)(N),N.skipBits(1),N.skipBits(1),N.skipBits(3),N.skipBits(1),N.skipBits(1),(0,p.readExpGolomb)(N),(0,p.readExpGolomb)(N),(0,p.readSignedExpGolomb)(N),N.skipBits(1),N.skipBits(1),N.readBits(1)&&(0,p.readExpGolomb)(N),(0,p.readSignedExpGolomb)(N),(0,p.readSignedExpGolomb)(N),N.skipBits(1),N.skipBits(1),N.skipBits(1),N.skipBits(1);var z=N.readBits(1),V=N.readBits(1);O=z||V?z&&!V?2:!z&&V?3:0:0}var 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a=!1,i=!1,s=!1;r&&(a=1===e.readBits(1),i=1===e.readBits(1),(a||i)&&((s=1===e.readBits(1))&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),s&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5)));for(var o=0;o<=n;o++){var c=1===e.readBits(1),u=!0;c||(u=1===e.readBits(1));var l=!1;u?(0,p.readExpGolomb)(e):l=1===e.readBits(1);var d=1;l||(d=(0,p.readExpGolomb)(e)+1),a&&R(e,d,s),i&&R(e,d,s)}},R=function(e,r,n){for(var a=0;a<r;a++)(0,p.readExpGolomb)(e),(0,p.readExpGolomb)(e),n&&((0,p.readExpGolomb)(e),(0,p.readExpGolomb)(e)),e.readBits(1)},U=function(e){var r=[];r.push(e.configurationVersion),r.push((3&e.generalProfileSpace)<<6|(1&e.generalTierFlag)<<5|31&e.generalProfileIdc),r.push(e.generalProfileCompatibilityFlags>>>24&255),r.push(e.generalProfileCompatibilityFlags>>>16&255),r.push(e.generalProfileCompatibilityFlags>>>8&255),r.push(255&e.generalProfileCompatibilityFlags),r.push.apply(r,(0,f._)(e.generalConstraintIndicatorFlags)),r.push(255&e.generalLevelIdc),r.push(240|e.minSpatialSegmentationIdc>>8&15),r.push(255&e.minSpatialSegmentationIdc),r.push(252|3&e.parallelismType),r.push(252|3&e.chromaFormatIdc),r.push(248|7&e.bitDepthLumaMinus8),r.push(248|7&e.bitDepthChromaMinus8),r.push(e.avgFrameRate>>8&255),r.push(255&e.avgFrameRate),r.push((3&e.constantFrameRate)<<6|(7&e.numTemporalLayers)<<3|(1&e.temporalIdNested)<<2|3&e.lengthSizeMinusOne),r.push(255&e.arrays.length);var n=!0,a=!1,i=void 0;try{for(var s,o=e.arrays[Symbol.iterator]();!(n=(s=o.next()).done);n=!0){var c=s.value;r.push((1&c.arrayCompleteness)<<7|63&c.nalUnitType),r.push(c.nalUnits.length>>8&255),r.push(255&c.nalUnits.length);var u=!0,l=!1,d=void 0;try{for(var h,m=c.nalUnits[Symbol.iterator]();!(u=(h=m.next()).done);u=!0){var p=h.value;r.push(p.length>>8&255),r.push(255&p.length);for(var g=0;g<p.length;g++)r.push(p[g])}}catch(e){l=!0,d=e}finally{try{u||null==m.return||m.return()}finally{if(l)throw d}}}}catch(e){a=!0,i=e}finally{try{n||null==o.return||o.return()}finally{if(a)throw i}}return new Uint8Array(r)},O=function(e){var r=new(0,p.Bitstream)(e);if(2!==r.readBits(2))return null;var n=r.readBits(1),a=(r.readBits(1)<<1)+n;if(3===a&&r.skipBits(1),1===r.readBits(1)||0!==r.readBits(1)||(r.skipBits(2),4817730!==r.readBits(24)))return null;var i=8;a>=2&&(i=r.readBits(1)?12:10);var s=r.readBits(3),o=0,c=0;if(7!==s)if(c=r.readBits(1),1===a||3===a){var u=r.readBits(1),l=r.readBits(1);o=u||l?u&&!l?2:1:3,r.skipBits(1)}else o=1;else o=3,c=1;var d=(r.readBits(16)+1)*(r.readBits(16)+1),f=(0,p.last)(m.VP9_LEVEL_TABLE).level,h=!0,g=!1,b=void 0;try{for(var k,_=m.VP9_LEVEL_TABLE[Symbol.iterator]();!(h=(k=_.next()).done);h=!0){var y=k.value;if(d<=y.maxPictureSize){f=y.level;break}}}catch(e){g=!0,b=e}finally{try{h||null==_.return||_.return()}finally{if(g)throw b}}return{profile:a,level:f,bitDepth:i,chromaSubsampling:o,videoFullRangeFlag:c,colourPrimaries:2===s?1:1===s?6:2,transferCharacteristics:2===s?1:1===s?6:2,matrixCoefficients:7===s?0:2===s?1:1===s?6:2}},L=function(e){var r,n,a,i,s,o,c;return(0,h._)(this,function(u){switch(u.label){case 0:r=new(0,p.Bitstream)(e),n=function(){for(var e=0,n=0;n<8;n++){var a=r.readAlignedByte();if(e|=(127&a)<<7*n,!(128&a))break;if(7===n&&128&a)return null}return e>=0xffffffff?null:e},u.label=1;case 1:if(!(r.getBitsLeft()>=8))return[3,3];if(r.skipBits(1),a=r.readBits(4),i=r.readBits(1),s=r.readBits(1),r.skipBits(1),i&&r.skipBits(8),o=void 0,s){if(null===(c=n()))return[2];o=c}else o=Math.floor(r.getBitsLeft()/8);return(0,p.assert)(r.pos%8==0),[4,{type:a,data:e.subarray(r.pos/8,r.pos/8+o)}];case 2:return u.sent(),r.skipBits(8*o),[3,1];case 3:return[2]}})},N=function(e){var r=!0,n=!1,a=void 0;try{for(var i,s=L(e)[Symbol.iterator]();!(r=(i=s.next()).done);r=!0){var o=i.value,c=o.type,u=o.data;if(1===c){var l=new(0,p.Bitstream)(u),d=l.readBits(3);l.readBits(1);var f=l.readBits(1),h=0,m=0,g=0;if(f)h=l.readBits(5);else{if(l.readBits(1)&&(l.skipBits(32),l.skipBits(32),l.readBits(1)))return null;var b=l.readBits(1);b&&(g=l.readBits(5),l.skipBits(32),l.skipBits(5),l.skipBits(5));for(var k=l.readBits(5),_=0;_<=k;_++){l.skipBits(12);var y=l.readBits(5);if(0===_&&(h=y),y>7){var w=l.readBits(1);0===_&&(m=w)}if(b&&l.readBits(1)){var S=g+1;l.skipBits(S),l.skipBits(S),l.skipBits(1)}l.readBits(1)&&l.skipBits(4)}}var T=l.readBits(4),x=l.readBits(4),I=T+1;l.skipBits(I);var E=x+1;l.skipBits(E);if((f?0:l.readBits(1))&&(l.skipBits(4),l.skipBits(3)),l.skipBits(1),l.skipBits(1),l.skipBits(1),!f){l.skipBits(1),l.skipBits(1),l.skipBits(1),l.skipBits(1);var j=l.readBits(1);j&&(l.skipBits(1),l.skipBits(1));var P=l.readBits(1);(P?2:l.readBits(1))>0&&(l.readBits(1)||l.skipBits(1)),j&&l.skipBits(3)}l.skipBits(1),l.skipBits(1),l.skipBits(1);var C=l.readBits(1),A=8;2===d&&C?A=l.readBits(1)?12:10:d<=2&&(A=C?10:8);var B=0;1!==d&&(B=l.readBits(1));var M=1,D=1,F=0;return!B&&(0===d?(M=1,D=1):1===d?(M=0,D=0):12===A&&(M=l.readBits(1))&&(D=l.readBits(1)),M&&D&&(F=l.readBits(2))),{profile:d,level:h,tier:m,bitDepth:A,monochrome:B,chromaSubsamplingX:M,chromaSubsamplingY:D,chromaSamplePosition:F}}}}catch(e){n=!0,a=e}finally{try{r||null==s.return||s.return()}finally{if(n)throw a}}return null},z=function(e){var r=(0,p.toDataView)(e),n=r.getUint8(9),a=r.getUint16(10,!0),i=r.getUint32(12,!0),s=r.getInt16(16,!0),o=r.getUint8(18),c=null;return o&&(c=e.subarray(19,21+n)),{outputChannelCount:n,preSkip:a,inputSampleRate:i,outputGain:s,channelMappingFamily:o,channelMappingTable:c}},V=[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],H=function(e){return{durationInSamples:V[e[0]>>3]}},G=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"!==(r=String).fromCharCode.apply(r,(0,f._)(e.slice(1,7))))throw Error("Invalid packet signature in Setup header.");for(var r,n=e.length,a=new Uint8Array(n),i=0;i<n;i++)a[i]=e[n-1-i];for(var s=new(0,p.Bitstream)(a),o=0;s.getBitsLeft()>97;)if(1===s.readBits(1)){o=s.pos;break}if(0===o)throw Error("Invalid Setup header: framing bit not found.");for(var c=0,u=!1,l=0;s.getBitsLeft()>=97;){var 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U}),i.export(n,"CanvasSink",function(){return O}),i.export(n,"AudioSampleSink",function(){return z}),i.export(n,"AudioBufferSink",function(){return V});var s=e("@swc/helpers/cjs/_async_iterator.cjs"),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/_define_property.cjs"),f=e("@swc/helpers/cjs/_inherits.cjs"),h=e("@swc/helpers/cjs/_object_spread.cjs"),m=e("@swc/helpers/cjs/_object_spread_props.cjs"),p=e("@swc/helpers/cjs/_sliced_to_array.cjs"),g=e("@swc/helpers/cjs/_type_of.cjs"),b=e("@swc/helpers/cjs/_ts_generator.cjs"),k=e("./codec.js"),_=e("./codec-data.js"),y=e("./custom-coder.js"),w=e("./input.js"),S=e("./input-track.js"),T=e("./misc.js"),x=e("./packet.js"),I=e("./pcm.js"),E=e("./sample.js"),j=function(e){if(!e||(void 0===e?"undefined":(0,g._)(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.")},P=function(e){if(!(0,T.isNumber)(e))throw TypeError("timestamp must be a number.")},C=function(e,r,n){return n.verifyKeyPackets?r.then(function(r){return(0,o._)(function(){var n;return(0,b._)(this,function(a){switch(a.label){case 0:if(!r||"delta"===r.type)return[2,r];return[4,e.determinePacketType(r)];case 1:return(n=a.sent())&&(r.type=n),[2,r]}})})()}):r},A=function(){"use strict";function e(r){if((0,u._)(this,e),!(r instanceof S.InputTrack))throw TypeError("track must be an InputTrack.");this._track=r}return(0,l._)(e,[{key:"getFirstPacket",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};if(j(e),this._track.input._disposed)throw new(0,w.InputDisposedError);return C(this._track,this._track._backing.getFirstPacket(e),e)}},{key:"getPacket",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(P(e),j(r),this._track.input._disposed)throw new(0,w.InputDisposedError);return C(this._track,this._track._backing.getPacket(e,r),r)}},{key:"getNextPacket",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(!(e instanceof x.EncodedPacket))throw TypeError("packet must be an EncodedPacket.");if(j(r),this._track.input._disposed)throw new(0,w.InputDisposedError);return C(this._track,this._track._backing.getNextPacket(e,r),r)}},{key:"getKeyPacket",value:function(e){return(0,o._)(function(e){var r,n,a=arguments;return(0,b._)(this,function(i){switch(i.label){case 0:if(r=a.length>1&&void 0!==a[1]?a[1]:{},P(e),j(r),this._track.input._disposed)throw new(0,w.InputDisposedError);if(!r.verifyKeyPackets)return[2,this._track._backing.getKeyPacket(e,r)];return[4,this._track._backing.getKeyPacket(e,r)];case 1:if(!(n=i.sent()))return[2,n];return(0,T.assert)("key"===n.type),[4,this._track.determinePacketType(n)];case 2:if("delta"===i.sent())return[2,this.getKeyPacket(n.timestamp-1/this._track.timeResolution,r)];return[2,n]}})}).apply(this,arguments)}},{key:"getNextKeyPacket",value:function(e){return(0,o._)(function(e){var r,n,a=arguments;return(0,b._)(this,function(i){switch(i.label){case 0:if(r=a.length>1&&void 0!==a[1]?a[1]:{},!(e instanceof x.EncodedPacket))throw TypeError("packet must be an EncodedPacket.");if(j(r),this._track.input._disposed)throw new(0,w.InputDisposedError);if(!r.verifyKeyPackets)return[2,this._track._backing.getNextKeyPacket(e,r)];return[4,this._track._backing.getNextKeyPacket(e,r)];case 1:if(!(n=i.sent()))return[2,n];return(0,T.assert)("key"===n.type),[4,this._track.determinePacketType(n)];case 2:if("delta"===i.sent())return[2,this.getNextKeyPacket(n,r)];return[2,n]}})}).apply(this,arguments)}},{key:"packets",value:function(e,r){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};if(void 0!==e&&!(e instanceof x.EncodedPacket))throw TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!(null==n?void 0:n.metadataOnly))throw TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==r&&!(r instanceof x.EncodedPacket))throw TypeError("endPacket must be an EncodedPacket.");if(j(n),this._track.input._disposed)throw new(0,w.InputDisposedError);var a=[],i=(0,T.promiseWithResolvers)(),s=i.promise,c=i.resolve,u=(0,T.promiseWithResolvers)(),l=u.promise,f=u.resolve,h=!1,m=!1,p=null,g=[];(0,o._)(function(){var i,o,u,d;return(0,b._)(this,function(p){switch(p.label){case 0:if(null==e)return[3,1];return o=e,[3,3];case 1:return[4,this.getFirstPacket(n)];case 2:o=p.sent(),p.label=3;case 3:i=o,p.label=4;case 4:if(!(i&&!m&&!this._track.input._disposed)||r&&i.sequenceNumber>=(null==r?void 0:r.sequenceNumber))return[3,8];if(!(a.length>Math.max(2,g.length)))return[3,6];return l=(u=(0,T.promiseWithResolvers)()).promise,f=u.resolve,[4,l];case 5:return p.sent(),[3,4];case 6:return a.push(i),c(),s=(d=(0,T.promiseWithResolvers)()).promise,c=d.resolve,[4,this.getNextPacket(i,n)];case 7:return i=p.sent(),[3,4];case 8:return h=!0,c(),[2]}})}).call(this).catch(function(e){p||(p=e,c())});var k=this._track;return(0,d._)({next:function(){return(0,o._)(function(){var e,r;return(0,b._)(this,function(n){switch(n.label){case 0:if(!k.input._disposed)return[3,1];throw new(0,w.InputDisposedError);case 1:if(!m)return[3,2];return[2,{value:void 0,done:!0}];case 2:if(!p)return[3,3];throw p;case 3:if(!(a.length>0))return[3,4];for(e=a.shift(),r=performance.now(),g.push(r);g.length>0&&r-g[0]>=1e3;)g.shift();return f(),[2,{value:e,done:!1}];case 4:if(!h)return[3,5];return[2,{value:void 0,done:!0}];case 5:return[4,s];case 6:n.sent(),n.label=7;case 7:return[3,0];case 8:return[2]}})})()},return:function(){return(0,o._)(function(){return(0,b._)(this,function(e){return m=!0,f(),c(),[2,{value:void 0,done:!0}]})})()},throw:function(e){return(0,o._)(function(){return(0,b._)(this,function(r){throw e})})()}},Symbol.asyncIterator,function(){return this})}}]),e}(),B=function e(r,n){"use strict";(0,u._)(this,e),this.onSample=r,this.onError=n},M=function(){"use strict";function e(){(0,u._)(this,e)}return(0,l._)(e,[{key:"mediaSamplesInRange",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:1/0;P(e),P(r);var n=[],a=!1,i=null,s=(0,T.promiseWithResolvers)(),c=s.promise,u=s.resolve,l=(0,T.promiseWithResolvers)(),f=l.promise,h=l.resolve,m=!1,p=!1,g=!1,k=null;(0,o._)(function(){var s,o,l,d,_,y,w,S,x,I,E,j,P,C,A,B;return(0,b._)(this,function(b){switch(b.label){case 0:return s=Error(),[4,this._createDecoder(function(s){if(h(),s.timestamp>=r&&(p=!0),p)return void s.close();if(i&&(s.timestamp>e?(n.push(i),a=!0):i.close()),s.timestamp>=e&&(n.push(s),a=!0),i=a?null:s,n.length>0){var o;u(),c=(o=(0,T.promiseWithResolvers)()).promise,u=o.resolve}},function(e){k||(e.stack=s.stack,k=e,u())})];case 1:return o=b.sent(),[4,(l=this._createPacketSink()).getKeyPacket(e,{verifyKeyPackets:!0})];case 2:if(null==(d=b.sent()))return[3,3];return y=d,[3,5];case 3:return[4,l.getFirstPacket()];case 4:y=b.sent(),b.label=5;case 5:if(w=_=y,S=void 0,!(r<1/0))return[3,12];return[4,l.getPacket(r)];case 6:if(x=b.sent())return[3,7];return E=null,[3,11];case 7:if("key"!==x.type||x.timestamp!==r)return[3,8];return j=x,[3,10];case 8:return[4,l.getNextKeyPacket(x,{verifyKeyPackets:!0})];case 9:j=b.sent(),b.label=10;case 10:E=j,b.label=11;case 11:(I=E)&&(S=I),b.label=12;case 12:return[4,(P=l.packets(null!=_?_:void 0,S)).next()];case 13:b.sent(),b.label=14;case 14:if(!(w&&!p&&!this._track.input._disposed))return[3,18];if(C=D(n.length),!(n.length+o.getDecodeQueueSize()>C))return[3,16];return f=(A=(0,T.promiseWithResolvers)()).promise,h=A.resolve,[4,f];case 15:return b.sent(),[3,14];case 16:return o.decode(w),[4,P.next()];case 17:if((B=b.sent()).done)return[3,18];return w=B.value,[3,14];case 18:return[4,P.return()];case 19:if(b.sent(),!(!g&&!this._track.input._disposed))return[3,21];return[4,o.flush()];case 20:b.sent(),b.label=21;case 21:return o.close(),!a&&i&&n.push(i),m=!0,u(),[2]}})}).call(this).catch(function(e){k||(k=e,u())});var _=this._track,y=function(){null==i||i.close();var e=!0,r=!1,a=void 0;try{for(var s,o=n[Symbol.iterator]();!(e=(s=o.next()).done);e=!0)s.value.close()}catch(e){r=!0,a=e}finally{try{e||null==o.return||o.return()}finally{if(r)throw a}}};return(0,d._)({next:function(){return(0,o._)(function(){var e;return(0,b._)(this,function(r){switch(r.label){case 0:if(!_.input._disposed)return[3,1];throw y(),new(0,w.InputDisposedError);case 1:if(!g)return[3,2];return[2,{value:void 0,done:!0}];case 2:if(!k)return[3,3];throw y(),k;case 3:if(!(n.length>0))return[3,4];return e=n.shift(),h(),[2,{value:e,done:!1}];case 4:if(m)return[3,6];return[4,c];case 5:return r.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,o._)(function(){return(0,b._)(this,function(e){return g=!0,p=!0,h(),u(),y(),[2,{value:void 0,done:!0}]})})()},throw:function(e){return(0,o._)(function(){return(0,b._)(this,function(r){throw e})})()}},Symbol.asyncIterator,function(){return this})}},{key:"mediaSamplesAtTimestamps",value:function(e){(0,T.validateAnyIterable)(e);var r=(0,T.toAsyncIterator)(e),n=[],a=[],i=(0,T.promiseWithResolvers)(),c=i.promise,u=i.resolve,l=(0,T.promiseWithResolvers)(),f=l.promise,h=l.resolve,m=!1,p=!1,g=null,k=function(e){var r;a.push(e),u(),c=(r=(0,T.promiseWithResolvers)()).promise,u=r.resolve};(0,o._)(function(){var e,i,c,l,d,_,y,w,S,x,I,E,j,C,A,B,M,F;return(0,b._)(this,function(R){switch(R.label){case 0:return e=Error(),[4,this._createDecoder(function(e){if(h(),p)return void e.close();for(var r=0;n.length>0&&e.timestamp-n[0]>-1e-10;)r++,n.shift();if(r>0)for(var a=0;a<r;a++)k(a<r-1?e.clone():e);else e.close()},function(r){g||(r.stack=e.stack,g=r,u())})];case 1:i=R.sent(),c=this._createPacketSink(),l=null,d=null,_=-1,y=function(){return(0,o._)(function(){var e,r,n,s;return(0,b._)(this,function(o){switch(o.label){case 0:(0,T.assert)(d),e=d,i.decode(e),o.label=1;case 1:if(!(e.sequenceNumber<_))return[3,6];r=D(a.length),o.label=2;case 2:if(!(a.length+i.getDecodeQueueSize()>r&&!p))return[3,4];return f=(n=(0,T.promiseWithResolvers)()).promise,h=n.resolve,[4,f];case 3:return o.sent(),[3,2];case 4:if(p)return[3,6];return[4,c.getNextPacket(e)];case 5:return s=o.sent(),(0,T.assert)(s),i.decode(s),e=s,[3,1];case 6:return _=-1,[2]}})})()},w=function(){return(0,o._)(function(){var e;return(0,b._)(this,function(r){switch(r.label){case 0:return[4,i.flush()];case 1:for(r.sent(),e=0;e<n.length;e++)k(null);return n.length=0,[2]}})})()},S=!1,x=!1,R.label=2;case 2:R.trys.push([2,17,18,23]),E=(0,s._)(r),R.label=3;case 3:return[4,E.next()];case 4:if(!(S=!(j=R.sent()).done)||(P(C=j.value),p||this._track.input._disposed))return[3,16];return[4,c.getPacket(C)];case 5:if(!(M=A=R.sent()))return[3,7];return[4,c.getKeyPacket(C,{verifyKeyPackets:!0})];case 6:M=R.sent(),R.label=7;case 7:if(B=M)return[3,11];if(-1===_)return[3,10];return[4,y()];case 8:return R.sent(),[4,w()];case 9:R.sent(),R.label=10;case 10:return k(null),l=null,[3,15];case 11:if(!(l&&(B.sequenceNumber!==d.sequenceNumber||A.timestamp<l.timestamp)))return[3,14];return[4,y()];case 12:return R.sent(),[4,w()];case 13:R.sent(),R.label=14;case 14:n.push(A.timestamp),_=Math.max(A.sequenceNumber,_),l=A,d=B,R.label=15;case 15:return S=!1,[3,3];case 16:return[3,23];case 17:return F=R.sent(),x=!0,I=F,[3,23];case 18:if(R.trys.push([18,,21,22]),!(S&&null!=E.return))return[3,20];return[4,E.return()];case 19:R.sent(),R.label=20;case 20:return[3,22];case 21:if(x)throw I;return[7];case 22:return[7];case 23:if(!(!p&&!this._track.input._disposed))return[3,27];if(-1===_)return[3,25];return[4,y()];case 24:R.sent(),R.label=25;case 25:return[4,w()];case 26:R.sent(),R.label=27;case 27:return i.close(),m=!0,u(),[2]}})}).call(this).catch(function(e){g||(g=e,u())});var _=this._track,y=function(){var e=!0,r=!1,n=void 0;try{for(var i,s=a[Symbol.iterator]();!(e=(i=s.next()).done);e=!0){var o=i.value;null==o||o.close()}}catch(e){r=!0,n=e}finally{try{e||null==s.return||s.return()}finally{if(r)throw n}}};return(0,d._)({next:function(){return(0,o._)(function(){var e;return(0,b._)(this,function(r){switch(r.label){case 0:if(!_.input._disposed)return[3,1];throw y(),new(0,w.InputDisposedError);case 1:if(!p)return[3,2];return[2,{value:void 0,done:!0}];case 2:if(!g)return[3,3];throw y(),g;case 3:if(!(a.length>0))return[3,4];return e=a.shift(),(0,T.assert)(void 0!==e),h(),[2,{value:e,done:!1}];case 4:if(m)return[3,6];return[4,c];case 5:return r.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,o._)(function(){return(0,b._)(this,function(e){return p=!0,h(),u(),y(),[2,{value:void 0,done:!0}]})})()},throw:function(e){return(0,o._)(function(){return(0,b._)(this,function(r){throw e})})()}},Symbol.asyncIterator,function(){return this})}}]),e}(),D=function(e){return 0===e?40:8},F=function(e){"use strict";function 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f=function(e){if(l.alphaQueue.length>0){var r=l.alphaQueue.shift();(0,T.assert)(void 0!==r),l.mergeAlpha(e,r)}else l.colorQueue.push(e)};if("avc"===a&&l.decoderConfig.description&&(0,T.isChromium)()){var p=(0,_.deserializeAvcDecoderConfigurationRecord)((0,T.toUint8Array)(l.decoderConfig.description));if(p&&p.sequenceParameterSets.length>0){var g=(0,_.parseAvcSps)(p.sequenceParameterSets[0]);g&&0===g.frameMbsOnlyFlag&&(l.decoderConfig=(0,m._)((0,h._)({},l.decoderConfig),{hardwareAcceleration:"prefer-software"}))}}l.decoder=new VideoDecoder({output:function(e){try{f(e)}catch(e){l.onError(e)}},error:n}),l.decoder.configure(l.decoderConfig)}return l}return(0,f._)(r,e),(0,l._)(r,[{key:"getDecodeQueueSize",value:function(){var e,r;return this.customDecoder?this.customDecoderQueueSize:((0,T.assert)(this.decoder),Math.max(this.decoder.decodeQueueSize,null!=(r=null==(e=this.alphaDecoder)?void 0:e.decodeQueueSize)?r:0))}},{key:"decode",value:function(e){var r=this;if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}this.currentPacketIndex++,this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(function(){return r.customDecoder.decode(e)}).then(function(){return r.customDecoderQueueSize--})):((0,T.assert)(this.decoder),(0,T.isWebKit)()||(0,T.insertSorted)(this.inputTimestamps,e.timestamp,function(e){return e}),this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e))}},{key:"decodeAlphaData",value:function(e){var r=this;if(!e.sideData.alpha||this.mergerCreationFailed)return void this.pushNullAlphaFrame();if(!this.merger)try{this.merger=new R}catch(r){console.error("Due to an error, only color data will be decoded.",r),this.mergerCreationFailed=!0,this.decodeAlphaData(e);return}if(!this.alphaDecoder){var n=function(e){if(r.alphaDecoderQueueSize--,r.colorQueue.length>0){var n=r.colorQueue.shift();(0,T.assert)(void 0!==n),r.mergeAlpha(n,e)}else r.alphaQueue.push(e);for(r.decodedAlphaChunkCount++;r.nullAlphaFrameQueue.length>0&&r.nullAlphaFrameQueue[0]===r.decodedAlphaChunkCount;)if(r.nullAlphaFrameQueue.shift(),r.colorQueue.length>0){var a=r.colorQueue.shift();(0,T.assert)(void 0!==a),r.mergeAlpha(a,null)}else r.alphaQueue.push(null)};this.alphaDecoder=new VideoDecoder({output:function(e){try{n(e)}catch(e){r.onError(e)}},error:this.onError}),this.alphaDecoder.configure(this.decoderConfig)}var a=(0,_.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){return(0,_.extractHevcNalUnits)(e,this.decoderConfig).some(function(e){var r=(0,_.extractNalUnitTypeForHevc)(e);return r===_.HevcNalUnitType.RASL_N||r===_.HevcNalUnitType.RASL_R})}},{key:"sampleHandler",value:function(e){if((0,T.isWebKit)()){if(this.sampleQueue.length>0&&e.timestamp>=(0,T.last)(this.sampleQueue).timestamp){var r=!0,n=!1,a=void 0;try{for(var i,s=this.sampleQueue[Symbol.iterator]();!(r=(i=s.next()).done);r=!0){var o=i.value;this.finalizeAndEmitSample(o)}}catch(e){n=!0,a=e}finally{try{r||null==s.return||s.return()}finally{if(n)throw a}}this.sampleQueue.length=0}(0,T.insertSorted)(this.sampleQueue,e,function(e){return e.timestamp})}else{var c=this.inputTimestamps.shift();(0,T.assert)(void 0!==c),e.setTimestamp(c),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,r){if(!r){var n,a=new(0,E.VideoSample)(e);this.sampleHandler(a);return}(0,T.assert)(this.merger),this.merger.update(e,r),e.close(),r.close();var i=new VideoFrame(this.merger.canvas,{timestamp:e.timestamp,duration:null!=(n=e.duration)?n:void 0}),s=new(0,E.VideoSample)(i);this.sampleHandler(s)}},{key:"flush",value:function(){return(0,o._)(function(){var e,r,n,a,i,s,o,c;return(0,b._)(this,function(u){switch(u.label){case 0:if(e=this,!this.customDecoder)return[3,2];return[4,this.customDecoderCallSerializer.call(function(){return e.customDecoder.flush()})];case 1:return u.sent(),[3,4];case 2:return(0,T.assert)(this.decoder),[4,Promise.all([this.decoder.flush(),null==(r=this.alphaDecoder)?void 0:r.flush()])];case 3:u.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,u.label=4;case 4:if((0,T.isWebKit)()){n=!0,a=!1,i=void 0;try{for(s=this.sampleQueue[Symbol.iterator]();!(n=(o=s.next()).done);n=!0)c=o.value,this.finalizeAndEmitSample(c)}catch(e){a=!0,i=e}finally{try{n||null==s.return||s.return()}finally{if(a)throw i}}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,T.assert)(this.decoder),this.decoder.close(),null==(i=this.alphaDecoder)||i.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==(s=this.merger)||s.close());var r=!0,n=!1,a=void 0;try{for(var i,s,o,c=this.sampleQueue[Symbol.iterator]();!(r=(o=c.next()).done);r=!0)o.value.close()}catch(e){n=!0,a=e}finally{try{r||null==c.return||c.return()}finally{if(n)throw a}}this.sampleQueue.length=0}}]),r}(B),R=function(){"use strict";function e(){(0,u._)(this,e),"undefined"!=typeof OffscreenCanvas?this.canvas=new OffscreenCanvas(300,150):this.canvas=document.createElement("canvas");var r=this.canvas.getContext("webgl2",{premultipliedAlpha:!1});if(!r)throw Error("Couldn't acquire WebGL 2 context.");this.gl=r,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,l._)(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 "),r=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 "),n=this.gl.createProgram();return this.gl.attachShader(n,e),this.gl.attachShader(n,r),this.gl.linkProgram(n),n}},{key:"createShader",value:function(e,r){var n=this.gl.createShader(e);return this.gl.shaderSource(n,r),this.gl.compileShader(n),n}},{key:"createVAO",value:function(){var e=this.gl.createVertexArray();this.gl.bindVertexArray(e);var r=new Float32Array([-1,-1,0,1,1,-1,1,1,-1,1,0,0,1,1,1,0]),n=this.gl.createBuffer();this.gl.bindBuffer(this.gl.ARRAY_BUFFER,n),this.gl.bufferData(this.gl.ARRAY_BUFFER,r,this.gl.STATIC_DRAW);var a=this.gl.getAttribLocation(this.program,"a_position"),i=this.gl.getAttribLocation(this.program,"a_texCoord");return this.gl.enableVertexAttribArray(a),this.gl.vertexAttribPointer(a,2,this.gl.FLOAT,!1,16,0),this.gl.enableVertexAttribArray(i),this.gl.vertexAttribPointer(i,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,r){(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,r),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}(),U=function(e){"use strict";function r(e){var n;if((0,u._)(this,r),!(e instanceof S.InputVideoTrack))throw TypeError("videoTrack must be an InputVideoTrack.");return(n=(0,c._)(this,r))._track=e,n}return(0,f._)(r,e),(0,l._)(r,[{key:"_createDecoder",value:function(e,r){return(0,o._)(function(){var n,a,i,s;return(0,b._)(this,function(o){switch(o.label){case 0:return[4,this._track.canDecode()];case 1:if(!o.sent())throw Error("This video track cannot be decoded by this browser. Make sure to check decodability before using a track.");return n=this._track.codec,a=this._track.rotation,[4,this._track.getDecoderConfig()];case 2:return i=o.sent(),s=this._track.timeResolution,(0,T.assert)(n&&i),[2,new F(e,r,n,i,a,s)]}})}).call(this)}},{key:"_createPacketSink",value:function(){return new A(this._track)}},{key:"getSample",value:function(e){return(0,o._)(function(){var r,n,a,i,o,c;return(0,b._)(this,function(u){switch(u.label){case 0:P(e),r=!1,n=!1,u.label=1;case 1:u.trys.push([1,6,7,12]),i=(0,s._)(this.mediaSamplesAtTimestamps([e])),u.label=2;case 2:return[4,i.next()];case 3:if(!(r=!(o=u.sent()).done))return[3,5];return[2,o.value];case 4:return r=!1,[3,2];case 5:return[3,12];case 6:return c=u.sent(),n=!0,a=c,[3,12];case 7:if(u.trys.push([7,,10,11]),!(r&&null!=i.return))return[3,9];return[4,i.return()];case 8:u.sent(),u.label=9;case 9:return[3,11];case 10:if(n)throw a;return[7];case 11:return[7];case 12:throw Error("Internal error: Iterator returned nothing.")}})}).call(this)}},{key:"samples",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:1/0;return this.mediaSamplesInRange(e,r)}},{key:"samplesAtTimestamps",value:function(e){return this.mediaSamplesAtTimestamps(e)}}]),r}(M),O=function(){"use strict";function e(r){var n,a,i,s,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if((0,u._)(this,e),this._nextCanvasIndex=0,!(r instanceof S.InputVideoTrack))throw TypeError("videoTrack must be an InputVideoTrack.");if(o&&(void 0===o?"undefined":(0,g._)(o))!=="object")throw TypeError("options must be an object.");if(void 0!==o.alpha&&"boolean"!=typeof o.alpha)throw TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==o.width&&(!Number.isInteger(o.width)||o.width<=0))throw TypeError("options.width, when defined, must be a positive integer.");if(void 0!==o.height&&(!Number.isInteger(o.height)||o.height<=0))throw TypeError("options.height, when defined, must be a positive integer.");if(void 0!==o.fit&&!["fill","contain","cover"].includes(o.fit))throw TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==o.width&&void 0!==o.height&&void 0===o.fit)throw TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==o.rotation&&![0,90,180,270].includes(o.rotation))throw TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==o.crop&&(0,E.validateCropRectangle)(o.crop,"options."),void 0!==o.poolSize&&("number"!=typeof o.poolSize||!Number.isInteger(o.poolSize)||o.poolSize<0))throw TypeError("poolSize must be a non-negative integer.");var c=null!=(n=o.rotation)?n:r.rotation,l=(0,p._)(c%180==0?[r.codedWidth,r.codedHeight]:[r.codedHeight,r.codedWidth],2),d=l[0],f=l[1],h=o.crop;h&&(0,E.clampCropRectangle)(h,d,f);var m=(0,p._)(h?[h.width,h.height]:[d,f],2),b=m[0],k=m[1],_=b/k;void 0!==o.width&&void 0===o.height?k=Math.round((b=o.width)/_):void 0===o.width&&void 0!==o.height?b=Math.round((k=o.height)*_):void 0!==o.width&&void 0!==o.height&&(b=o.width,k=o.height),this._videoTrack=r,this._alpha=null!=(a=o.alpha)&&a,this._width=b,this._height=k,this._rotation=c,this._crop=h,this._fit=null!=(i=o.fit)?i:"fill",this._videoSampleSink=new U(r),this._canvasPool=Array.from({length:null!=(s=o.poolSize)?s:0},function(){return null})}return(0,l._)(e,[{key:"_videoSampleToWrappedCanvas",value:function(e){var r=this._canvasPool[this._nextCanvasIndex],n=!1;r||("undefined"!=typeof document?((r=document.createElement("canvas")).width=this._width,r.height=this._height):r=new OffscreenCanvas(this._width,this._height),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),n=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);var a=r.getContext("2d",{alpha:this._alpha||(0,T.isFirefox)()});(0,T.assert)(a),a.resetTransform(),n||(!this._alpha&&(0,T.isFirefox)()?(a.fillStyle="black",a.fillRect(0,0,this._width,this._height)):a.clearRect(0,0,this._width,this._height)),e.drawWithFit(a,{fit:this._fit,rotation:this._rotation,crop:this._crop});var i={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),i}},{key:"getCanvas",value:function(e){return(0,o._)(function(){var r;return(0,b._)(this,function(n){switch(n.label){case 0:return P(e),[4,this._videoSampleSink.getSample(e)];case 1:return[2,(r=n.sent())&&this._videoSampleToWrappedCanvas(r)]}})}).call(this)}},{key:"canvases",value:function(){var e=this,r=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:1/0;return(0,T.mapAsyncGenerator)(this._videoSampleSink.samples(r,n),function(r){return e._videoSampleToWrappedCanvas(r)})}},{key:"canvasesAtTimestamps",value:function(e){var r=this;return(0,T.mapAsyncGenerator)(this._videoSampleSink.samplesAtTimestamps(e),function(e){return e&&r._videoSampleToWrappedCanvas(e)})}}]),e}(),L=function(e){"use strict";function r(e,n,a,i){(0,u._)(this,r),(s=(0,c._)(this,r,[e,n])).decoder=null,s.customDecoder=null,s.customDecoderCallSerializer=new(0,T.CallSerializer),s.customDecoderQueueSize=0,s.currentTimestamp=null;var s,o=function(r){(null===s.currentTimestamp||Math.abs(r.timestamp-s.currentTimestamp)>=r.duration)&&(s.currentTimestamp=r.timestamp);var n=s.currentTimestamp;if(s.currentTimestamp+=r.duration,0===r.numberOfFrames)return void r.close();var a=i.sampleRate;r.setTimestamp(Math.round(n*a)/a),e(r)},l=y.customAudioDecoders.find(function(e){return e.supports(a,i)});return l?(s.customDecoder=new l,s.customDecoder.codec=a,s.customDecoder.config=i,s.customDecoder.onSample=function(e){if(!(e instanceof E.AudioSample))throw TypeError("The argument passed to onSample must be an 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e=this;this.customDecoder?this.customDecoderCallSerializer.call(function(){return e.customDecoder.close()}):((0,T.assert)(this.decoder),this.decoder.close())}}]),r}(B),N=function(e){"use strict";function r(e,n,a){(0,u._)(this,r),(i=(0,c._)(this,r,[e,n])).decoderConfig=a,i.currentTimestamp=null,(0,T.assert)(k.PCM_AUDIO_CODECS.includes(a.codec)),i.codec=a.codec;var i,s=(0,k.parsePcmCodec)(i.codec),o=s.dataType,l=s.sampleSize,d=s.littleEndian;switch(i.inputSampleSize=l,l){case 1:"unsigned"===o?i.readInputValue=function(e,r){return e.getUint8(r)-128}:"signed"===o?i.readInputValue=function(e,r){return e.getInt8(r)}:"ulaw"===o?i.readInputValue=function(e,r){return(0,I.fromUlaw)(e.getUint8(r))}:"alaw"===o?i.readInputValue=function(e,r){return(0,I.fromAlaw)(e.getUint8(r))}:(0,T.assert)(!1);break;case 2:"unsigned"===o?i.readInputValue=function(e,r){return e.getUint16(r,d)-32768}:"signed"===o?i.readInputValue=function(e,r){return e.getInt16(r,d)}:(0,T.assert)(!1);break;case 3:"unsigned"===o?i.readInputValue=function(e,r){return(0,T.getUint24)(e,r,d)-8388608}:"signed"===o?i.readInputValue=function(e,r){return(0,T.getInt24)(e,r,d)}:(0,T.assert)(!1);break;case 4:"unsigned"===o?i.readInputValue=function(e,r){return e.getUint32(r,d)-0x80000000}:"signed"===o?i.readInputValue=function(e,r){return e.getInt32(r,d)}:"float"===o?i.readInputValue=function(e,r){return e.getFloat32(r,d)}:(0,T.assert)(!1);break;case 8:"float"===o?i.readInputValue=function(e,r){return e.getFloat64(r,d)}:(0,T.assert)(!1);break;default:(0,T.assertNever)(l),(0,T.assert)(!1)}switch(l){case 1:"ulaw"===o||"alaw"===o?(i.outputSampleSize=2,i.outputFormat="s16",i.writeOutputValue=function(e,r,n){return e.setInt16(r,n,!0)}):(i.outputSampleSize=1,i.outputFormat="u8",i.writeOutputValue=function(e,r,n){return e.setUint8(r,n+128)});break;case 2:i.outputSampleSize=2,i.outputFormat="s16",i.writeOutputValue=function(e,r,n){return e.setInt16(r,n,!0)};break;case 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l=n/this.decoderConfig.sampleRate;(null===this.currentTimestamp||Math.abs(e.timestamp-this.currentTimestamp)>=l)&&(this.currentTimestamp=e.timestamp);var d=this.currentTimestamp;this.currentTimestamp+=l;var f=new(0,E.AudioSample)({format:this.outputFormat,data:a,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:n,timestamp:d});this.onSample(f)}},{key:"flush",value:function(){return(0,o._)(function(){return(0,b._)(this,function(e){return[2]})})()}},{key:"close",value:function(){}}]),r}(B),z=function(e){"use strict";function r(e){var n;if((0,u._)(this,r),!(e instanceof S.InputAudioTrack))throw TypeError("audioTrack must be an InputAudioTrack.");return(n=(0,c._)(this,r))._track=e,n}return(0,f._)(r,e),(0,l._)(r,[{key:"_createDecoder",value:function(e,r){return(0,o._)(function(){var n,a;return(0,b._)(this,function(i){switch(i.label){case 0:return[4,this._track.canDecode()];case 1:if(!i.sent())throw Error("This audio track cannot be 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Make sure to check decodability before using a track.");return n=this._track.codec,[4,this._track.getDecoderConfig()];case 2:if(a=i.sent(),(0,T.assert)(n&&a),k.PCM_AUDIO_CODECS.includes(a.codec))return[2,new N(e,r,a)];return[2,new L(e,r,n,a)]}})}).call(this)}},{key:"_createPacketSink",value:function(){return new A(this._track)}},{key:"getSample",value:function(e){return(0,o._)(function(){var r,n,a,i,o,c;return(0,b._)(this,function(u){switch(u.label){case 0:P(e),r=!1,n=!1,u.label=1;case 1:u.trys.push([1,6,7,12]),i=(0,s._)(this.mediaSamplesAtTimestamps([e])),u.label=2;case 2:return[4,i.next()];case 3:if(!(r=!(o=u.sent()).done))return[3,5];return[2,o.value];case 4:return r=!1,[3,2];case 5:return[3,12];case 6:return c=u.sent(),n=!0,a=c,[3,12];case 7:if(u.trys.push([7,,10,11]),!(r&&null!=i.return))return[3,9];return[4,i.return()];case 8:u.sent(),u.label=9;case 9:return[3,11];case 10:if(n)throw a;return[7];case 11:return[7];case 12:throw Error("Internal error: Iterator returned 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e;this._streamSource._dispose(),null==(e=this._fileHandle)||e.close(),this._fileHandle=null}}]),r}(k),x=function(e){"use strict";function r(e){var n,a,i;if((0,c._)(this,r),!e||(void 0===e?"undefined":(0,d._)(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,m.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(n=(0,o._)(this,r))._options=e,n._orchestrator=new 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p=(0,m.toUint8Array)(h),null==(c=(u=this).onread)||c.call(u,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,r;this._orchestrator.dispose(),null==(e=(r=this._options).dispose)||e.call(r)}}]),r}(k),I=function(e){"use strict";function r(e){var n,a,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if((0,c._)(this,r),!(e instanceof ReadableStream))throw TypeError("stream must be a ReadableStream.");if(!i||(void 0===i?"undefined":(0,d._)(i))!=="object")throw TypeError("options must be an object.");if(void 0!==i.maxCacheSize&&(!(0,m.isNumber)(i.maxCacheSize)||i.maxCacheSize<0))throw TypeError("options.maxCacheSize, when provided, must be a non-negative 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d=Math.min(r,u.end);l<d&&(o.set(u.bytes.subarray(l-u.start,d-u.start),l-e),s=d)}if(s===r)return{bytes:o,view:(0,m.toDataView)(o),offset:e};this._currentIndex>s&&this._throwDueToCacheMiss();var f=(0,m.promiseWithResolvers)(),h=f.promise,p=f.resolve,g=f.reject;return this._pendingSlices.push({start:e,end:r,bytes:o,resolve:p,reject:g}),this._targetIndex=Math.max(this._targetIndex,r),this._pulling||(this._pulling=!0,this._pull().catch(function(e){if(n._pulling=!1,n._pendingSlices.length>0)n._pendingSlices.forEach(function(r){return r.reject(e)}),n._pendingSlices.length=0;else throw e})),h}},{key:"_throwDueToCacheMiss",value:function(){throw Error("Read is before the cached region. 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l=s.holes[u];n<=l.start&&a>l.start&&(l.start=a),l.end<=l.start&&(s.holes.splice(u,1),u--)}0===s.holes.length&&(s.resolve(s.bytes),e.pendingSlices.splice(i,1),i--)}for(var d=0;d<this.workers.length;d++){var f=this.workers[d];e!==f&&!f.running&&(0,m.closedIntervalsOverlap)(n,a,f.currentPos,f.targetPos)&&(this.workers.splice(d,1),d--)}}},{key:"forgetWorker",value:function(e){var r=this.workers.indexOf(e);(0,m.assert)(-1!==r),this.workers.splice(r,1)}},{key:"insertIntoCache",value:function(e){if(0!==this.options.maxCacheSize){var r=(0,m.binarySearchLessOrEqual)(this.cache,e.start,function(e){return e.start})+1;if(r>0){var n=this.cache[r-1];if(n.end>=e.end)return;if(n.end>e.start){var a=new Uint8Array(e.end-n.start);a.set(n.bytes,0),a.set(e.bytes,e.start-n.start),this.currentCacheSize+=e.end-n.end,n.bytes=a,n.view=(0,m.toDataView)(a),n.end=e.end,r--,e=n}else this.cache.splice(r,0,e),this.currentCacheSize+=e.bytes.length}else 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provided, must be an object.");if((null==d?void 0:d.alpha)!==void 0&&!(d.alpha instanceof Uint8Array))throw TypeError("sideData.alpha, when provided, must be a Uint8Array.");if((null==d?void 0:d.alphaByteLength)!==void 0&&(!Number.isInteger(d.alphaByteLength)||d.alphaByteLength<0))throw TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=u,this.sideData=null!=d?d:{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}return(0,o._)(e,[{key:"isMetadataOnly",get:function(){return this.data===l}},{key:"microsecondTimestamp",get:function(){return Math.trunc(u.SECOND_TO_MICROSECOND_FACTOR*this.timestamp)}},{key:"microsecondDuration",get:function(){return Math.trunc(u.SECOND_TO_MICROSECOND_FACTOR*this.duration)}},{key:"toEncodedVideoChunk",value:function(){if(this.isMetadataOnly)throw TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"==typeof 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("undefined"==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("undefined"==typeof EncodedAudioChunk)throw Error("Your browser does not support EncodedAudioChunk.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}},{key:"clone",value:function(r){var n,a;if(void 0!==r&&((void 0===r?"undefined":(0,c._)(r))!=="object"||null===r))throw TypeError("options, when provided, must be an object.");if((null==r?void 0:r.timestamp)!==void 0&&!Number.isFinite(r.timestamp))throw TypeError("options.timestamp, when provided, must be a number.");if((null==r?void 0:r.duration)!==void 0&&!Number.isFinite(r.duration))throw TypeError("options.duration, when provided, must be a number.");return new e(this.data,this.type,null!=(n=null==r?void 0:r.timestamp)?n:this.timestamp,null!=(a=null==r?void 0:r.duration)?a:this.duration,this.sequenceNumber,this.byteLength)}}],[{key:"fromEncodedChunk",value:function(r,n){if(!(r instanceof EncodedVideoChunk||r instanceof EncodedAudioChunk))throw TypeError("chunk must be an EncodedVideoChunk or 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h=-1/0,m=-1/0,p=null;"undefined"!=typeof FinalizationRegistry&&(p=new FinalizationRegistry(function(e){var r=Date.now();"video"===e.type?(r-h>=1e3&&(console.error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),h=r),"undefined"!=typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(r-m>=1e3&&(console.error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),m=r),"undefined"!=typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));var g=function(){"use strict";function e(r,n){if((0,o._)(this,e),this._closed=!1,r instanceof ArrayBuffer||"undefined"!=typeof SharedArrayBuffer&&r instanceof SharedArrayBuffer||ArrayBuffer.isView(r)){if(!n||(void 0===n?"undefined":(0,l._)(n))!=="object")throw TypeError("init must be an object.");if(!("format"in n)||"string"!=typeof n.format)throw TypeError("init.format must be a string.");if(!Number.isInteger(n.codedWidth)||n.codedWidth<=0)throw TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(n.codedHeight)||n.codedHeight<=0)throw TypeError("init.codedHeight must be a positive integer.");if(void 0!==n.rotation&&![0,90,180,270].includes(n.rotation))throw TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(n.timestamp))throw TypeError("init.timestamp must be a number.");if(void 0!==n.duration&&(!Number.isFinite(n.duration)||n.duration<0))throw TypeError("init.duration, when provided, must be a non-negative number.");this._data=(0,f.toUint8Array)(r).slice(),this.format=n.format,this.codedWidth=n.codedWidth,this.codedHeight=n.codedHeight,this.rotation=null!=(a=n.rotation)?a:0,this.timestamp=n.timestamp,this.duration=null!=(i=n.duration)?i:0,this.colorSpace=new VideoColorSpace(n.colorSpace)}else if("undefined"!=typeof VideoFrame&&r instanceof VideoFrame){if((null==n?void 0:n.rotation)!==void 0&&![0,90,180,270].includes(n.rotation))throw TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if((null==n?void 0:n.timestamp)!==void 0&&!Number.isFinite(null==n?void 0:n.timestamp))throw TypeError("init.timestamp, when provided, must be a number.");if((null==n?void 0:n.duration)!==void 0&&(!Number.isFinite(n.duration)||n.duration<0))throw TypeError("init.duration, when provided, must be a non-negative number.");this._data=r,this.format=r.format,this.codedWidth=r.displayWidth,this.codedHeight=r.displayHeight,this.rotation=null!=(s=null==n?void 0:n.rotation)?s:0,this.timestamp=null!=(c=null==n?void 0:n.timestamp)?c:r.timestamp/1e6,this.duration=null!=(d=null==n?void 0:n.duration)?d:(null!=(u=r.duration)?u:0)/1e6,this.colorSpace=r.colorSpace}else if("undefined"!=typeof HTMLImageElement&&r instanceof HTMLImageElement||"undefined"!=typeof SVGImageElement&&r instanceof SVGImageElement||"undefined"!=typeof ImageBitmap&&r instanceof ImageBitmap||"undefined"!=typeof HTMLVideoElement&&r instanceof HTMLVideoElement||"undefined"!=typeof HTMLCanvasElement&&r instanceof HTMLCanvasElement||"undefined"!=typeof OffscreenCanvas&&r instanceof OffscreenCanvas){if(!n||(void 0===n?"undefined":(0,l._)(n))!=="object")throw TypeError("init must be an object.");if(void 0!==n.rotation&&![0,90,180,270].includes(n.rotation))throw TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(n.timestamp))throw TypeError("init.timestamp must be a number.");if(void 0!==n.duration&&(!Number.isFinite(n.duration)||n.duration<0))throw TypeError("init.duration, when provided, must be a non-negative number.");if("undefined"!=typeof VideoFrame)return new e(new VideoFrame(r,{timestamp:Math.trunc(n.timestamp*f.SECOND_TO_MICROSECOND_FACTOR),duration:Math.trunc((null!=(h=n.duration)?h:0)*f.SECOND_TO_MICROSECOND_FACTOR)||void 0}),n);var a,i,s,c,u,d,h,m,g,b=0,k=0;if("naturalWidth"in r?(b=r.naturalWidth,k=r.naturalHeight):"videoWidth"in r?(b=r.videoWidth,k=r.videoHeight):"width"in r&&(b=Number(r.width),k=Number(r.height)),!b||!k)throw TypeError("Could not determine dimensions.");var _=new OffscreenCanvas(b,k),y=_.getContext("2d",{alpha:(0,f.isFirefox)(),willReadFrequently:!0});(0,f.assert)(y),y.drawImage(r,0,0),this._data=_,this.format="RGBX",this.codedWidth=b,this.codedHeight=k,this.rotation=null!=(m=n.rotation)?m:0,this.timestamp=n.timestamp,this.duration=null!=(g=n.duration)?g:0,this.colorSpace=new VideoColorSpace({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,c._)(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(f.SECOND_TO_MICROSECOND_FACTOR*this.timestamp)}},{key:"microsecondDuration",get:function(){return Math.trunc(f.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,f.assert)(null!==this._data),b(this._data))?new e(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation}):this._data instanceof Uint8Array?new e(this._data.slice(),{format:this.format,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),b(this._data)?this._data.close():this._data=null,this._closed=!0)}},{key:"allocationSize",value:function(){if(this._closed)throw Error("VideoSample is closed.");return((0,f.assert)(null!==this._data),b(this._data))?this._data.allocationSize():this._data instanceof Uint8Array?this._data.byteLength:this.codedWidth*this.codedHeight*4}},{key:"copyTo",value:function(e){return(0,s._)(function(){var r,n;return(0,d._)(this,function(a){switch(a.label){case 0:if(!(0,f.isAllowSharedBufferSource)(e))throw TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(this._closed)throw Error("VideoSample is closed.");if((0,f.assert)(null!==this._data),!b(this._data))return[3,2];return[4,this._data.copyTo(e)];case 1:return a.sent(),[3,3];case 2:this._data instanceof Uint8Array?(0,f.toUint8Array)(e).set(this._data):(r=this._data.getContext("2d"),(0,f.assert)(r),n=r.getImageData(0,0,this.codedWidth,this.codedHeight),(0,f.toUint8Array)(e).set(n.data)),a.label=3;case 3:return[2]}})}).call(this)}},{key:"toVideoFrame",value:function(){if(this._closed)throw Error("VideoSample is closed.");return((0,f.assert)(null!==this._data),b(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,r,n,a,i,s,o,c,u){var l,d=0,f=0,h=this.displayWidth,m=this.displayHeight,p=0,g=0,b=this.displayWidth,k=this.displayHeight;if(void 0!==s?(d=r,f=n,h=a,m=i,p=s,g=o,void 0!==c?(b=c,k=u):(b=h,k=m)):(p=r,g=n,void 0!==a&&(b=a,k=i)),!("undefined"!=typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!=typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(d))throw TypeError("sx must be a number.");if(!Number.isFinite(f))throw TypeError("sy must be a number.");if(!Number.isFinite(h)||h<0)throw TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(m)||m<0)throw TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(p))throw TypeError("dx must be a number.");if(!Number.isFinite(g))throw TypeError("dy must be a number.");if(!Number.isFinite(b)||b<0)throw TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(k)||k<0)throw TypeError("dHeight must be a non-negative number.");if(this._closed)throw Error("VideoSample is closed.");d=(l=this._rotateSourceRegion(d,f,h,m,this.rotation)).sx,f=l.sy,h=l.sWidth,m=l.sHeight;var _=this.toCanvasImageSource();e.save();var y=p+b/2,w=g+k/2;e.translate(y,w),e.rotate(this.rotation*Math.PI/180);var S=this.rotation%180==0?1:b/k;e.scale(1/S,S),e.drawImage(_,d,f,h,m,-b/2,-k/2,b,k),e.restore()}},{key:"drawWithFit",value:function(e,r){if(!("undefined"!=typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!=typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!r||(void 0===r?"undefined":(0,l._)(r))!=="object")throw TypeError("options must be an object.");if(!["fill","contain","cover"].includes(r.fit))throw TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==r.rotation&&![0,90,180,270].includes(r.rotation))throw TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==r.crop&&_(r.crop,"options.");var n,a,i,s,o,c,d,f,h,m,p,g,b,y=e.canvas.width,w=e.canvas.height,S=null!=(o=r.rotation)?o:this.rotation,T=(0,u._)(S%180==0?[this.codedWidth,this.codedHeight]:[this.codedHeight,this.codedWidth],2),x=T[0],I=T[1];r.crop&&k(r.crop,x,I);var E=this._rotateSourceRegion(null!=(m=null==(n=r.crop)?void 0:n.left)?m:0,null!=(p=null==(a=r.crop)?void 0:a.top)?p:0,null!=(g=null==(i=r.crop)?void 0:i.width)?g:x,null!=(b=null==(s=r.crop)?void 0:s.height)?b:I,S),j=E.sx,P=E.sy,C=E.sWidth,A=E.sHeight;if("fill"===r.fit)c=0,d=0,f=y,h=w;else{var B=(0,u._)(r.crop?[r.crop.width,r.crop.height]:[x,I],2),M=B[0],D=B[1],F="contain"===r.fit?Math.min(y/M,w/D):Math.max(y/M,w/D);f=M*F,h=D*F,c=(y-f)/2,d=(w-h)/2}e.save();var R=S%180==0?1:f/h;e.translate(y/2,w/2),e.rotate(S*Math.PI/180),e.scale(1/R,R),e.translate(-y/2,-w/2),e.drawImage(this.toCanvasImageSource(),j,P,C,A,c,d,f,h),e.restore()}},{key:"_rotateSourceRegion",value:function(e,r,n,a,i){var s,o,c;return 90===i?(e=(s=[r,this.codedHeight-e-n,a,n])[0],r=s[1],n=s[2],a=s[3]):180===i?(e=(o=[this.codedWidth-e-n,this.codedHeight-r-a])[0],r=o[1]):270===i&&(e=(c=[this.codedWidth-r-a,e,a,n])[0],r=c[1],n=c[2],a=c[3]),{sx:e,sy:r,sWidth:n,sHeight:a}}},{key:"toCanvasImageSource",value:function(){if(this._closed)throw Error("VideoSample is closed.");if((0,f.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 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TypeError(r+"crop.height must be a non-negative integer.")},y=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]),w=function(){"use strict";function e(r){if((0,o._)(this,e),this._closed=!1,E(r)){if(null===r.format)throw TypeError("AudioData with null format is not supported.");this._data=r,this.format=r.format,this.sampleRate=r.sampleRate,this.numberOfFrames=r.numberOfFrames,this.numberOfChannels=r.numberOfChannels,this.timestamp=r.timestamp/1e6,this.duration=r.numberOfFrames/r.sampleRate}else{if(!r||(void 0===r?"undefined":(0,l._)(r))!=="object")throw TypeError("Invalid AudioDataInit: must be an object.");if(!y.has(r.format))throw TypeError("Invalid AudioDataInit: invalid format.");if(!Number.isFinite(r.sampleRate)||r.sampleRate<=0)throw TypeError("Invalid AudioDataInit: sampleRate must be >0.");if(!Number.isInteger(r.numberOfChannels)||0===r.numberOfChannels)throw TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 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Math.trunc(f.SECOND_TO_MICROSECOND_FACTOR*this.timestamp)}},{key:"microsecondDuration",get:function(){return Math.trunc(f.SECOND_TO_MICROSECOND_FACTOR*this.duration)}},{key:"allocationSize",value:function(e){if(!e||(void 0===e?"undefined":(0,l._)(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&&!y.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 r,n,a=null!=(r=e.format)?r:this.format,i=null!=(n=e.frameOffset)?n:0;if(i>=this.numberOfFrames)throw RangeError("frameOffset out of range");var s=void 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Float32Array(h),A=0;A<u;A++){this._data.copyTo(C,{planeIndex:A,frameOffset:d,frameCount:h,format:"f32-planar"});for(var B=0;B<h;B++)k(b,(B*u+A)*m,C[B])}else for(var M=this._data,D=(0,f.toDataView)(M),F=this.format,R=x(F),U=S(F),O=T(F),L=0;L<h;L++)if(p)k(b,L*m,R(D,O?(n*c+(L+d))*U:((L+d)*u+n)*U));else for(var N=0;N<u;N++)k(b,(L*u+N)*m,R(D,O?(N*c+(L+d))*U:((L+d)*u+N)*U))}},{key:"clone",value:function(){if(this._closed)throw Error("AudioSample is closed.");if(!E(this._data))return new e({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp,data:this._data});var r=new e(this._data.clone());return r.setTimestamp(this.timestamp),r}},{key:"close",value:function(){this._closed||(null==p||p.unregister(this),E(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(!E(this._data))return new 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AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:a})}},{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}),r=new Float32Array(this.allocationSize({planeIndex:0,format:"f32-planar"})/4),n=0;n<this.numberOfChannels;n++)this.copyTo(r,{planeIndex:n,format:"f32-planar"}),e.copyToChannel(r,n);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(r,n){var a,i,s,o,c,u,l,f,h;return(0,d._)(this,function(d){switch(d.label){case 0:if(!(r instanceof AudioBuffer))throw TypeError("audioBuffer must be an 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2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw Error("Unknown AudioSampleFormat")}},T=function(e){switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},x=function(e){switch(e){case"u8":case"u8-planar":return function(e,r){return(e.getUint8(r)-128)/128};case"s16":case"s16-planar":return function(e,r){return e.getInt16(r,!0)/32768};case"s32":case"s32-planar":return function(e,r){return e.getInt32(r,!0)/0x80000000};case"f32":case"f32-planar":return function(e,r){return e.getFloat32(r,!0)}}},I=function(e){switch(e){case"u8":case"u8-planar":return function(e,r,n){return e.setUint8(r,(0,f.clamp)((n+1)*127.5,0,255))};case"s16":case"s16-planar":return function(e,r,n){return e.setInt16(r,(0,f.clamp)(Math.round(32767*n),-32768,32767),!0)};case"s32":case"s32-planar":return function(e,r,n){return e.setInt32(r,(0,f.clamp)(Math.round(0x7fffffff*n),-0x80000000,0x7fffffff),!0)};case"f32":case"f32-planar":return 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TypeError("tags.trackNumber, when provided, must be a positive integer.");if(void 0!==e.tracksTotal&&(!Number.isInteger(e.tracksTotal)||e.tracksTotal<=0))throw TypeError("tags.tracksTotal, when provided, must be a positive integer.");if(void 0!==e.discNumber&&(!Number.isInteger(e.discNumber)||e.discNumber<=0))throw TypeError("tags.discNumber, when provided, must be a positive integer.");if(void 0!==e.discsTotal&&(!Number.isInteger(e.discsTotal)||e.discsTotal<=0))throw TypeError("tags.discsTotal, when provided, must be a positive integer.");if(void 0!==e.genre&&"string"!=typeof e.genre)throw TypeError("tags.genre, when provided, must be a string.");if(void 0!==e.date&&(!(e.date instanceof Date)||Number.isNaN(e.date.getTime())))throw TypeError("tags.date, when provided, must be a valid Date.");if(void 0!==e.lyrics&&"string"!=typeof e.lyrics)throw TypeError("tags.lyrics, when provided, must be a string.");if(void 0!==e.images){if(!Array.isArray(e.images))throw TypeError("tags.images, when provided, must be an array.");var r=!0,n=!1,a=void 0;try{for(var i,s=e.images[Symbol.iterator]();!(r=(i=s.next()).done);r=!0){var l=i.value;if(!l||(void 0===l?"undefined":(0,o._)(l))!=="object")throw TypeError("Each image in tags.images must be an object.");if(!(l.data instanceof Uint8Array))throw TypeError("Each image.data must be a Uint8Array.");if("string"!=typeof l.mimeType)throw TypeError("Each image.mimeType must be a string.");if(!["coverFront","coverBack","unknown"].includes(l.kind))throw TypeError("Each image.kind must be 'coverFront', 'coverBack', or 'unknown'.")}}catch(e){n=!0,a=e}finally{try{r||null==s.return||s.return()}finally{if(n)throw a}}}if(void 0!==e.comment&&"string"!=typeof e.comment)throw TypeError("tags.comment, when provided, must be a string.");if(void 0!==e.raw){if(!e.raw||"object"!==(0,o._)(e.raw))throw TypeError("tags.raw, when provided, must be an object.");var d=!0,f=!1,h=void 0;try{for(var 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M=[{id:C.EBMLId.SeekHead,flag:"seekHeadSeen"},{id:C.EBMLId.Info,flag:"infoSeen"},{id:C.EBMLId.Tracks,flag:"tracksSeen"},{id:C.EBMLId.Cues,flag:"cuesSeen"}],D=function(e){"use strict";function r(e){var n;return(0,m._)(this,r),(n=(0,h._)(this,r,[e])).readMetadataPromise=null,n.segments=[],n.currentSegment=null,n.currentTrack=null,n.currentCluster=null,n.currentBlock=null,n.currentBlockAdditional=null,n.currentCueTime=null,n.currentDecodingInstruction=null,n.currentTagTargetIsMovie=!0,n.currentSimpleTagName=null,n.currentAttachedFile=null,n.isWebM=!1,n.reader=e._reader,n}return(0,g._)(r,e),(0,p._)(r,[{key:"computeDuration",value:function(){return(0,f._)(function(){var e,r;return(0,y._)(this,function(n){switch(n.label){case 0:return[4,this.getTracks()];case 1:return[4,Promise.all(n.sent().map(function(e){return e.computeDuration()}))];case 2:return r=n.sent(),[2,(e=Math).max.apply(e,[0].concat((0,_._)(r)))]}})}).call(this)}},{key:"getTracks",value:function(){return(0,f._)(function(){return(0,y._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),[2,this.segments.flatMap(function(e){return e.tracks.map(function(e){return e.inputTrack})})]}})}).call(this)}},{key:"getMimeType",value:function(){return(0,f._)(function(){var e;return(0,y._)(this,function(r){switch(r.label){case 0:return[4,this.readMetadata()];case 1:return r.sent(),[4,this.getTracks()];case 2:return[4,Promise.all(r.sent().map(function(e){return e.getCodecParameterString()}))];case 3:return e=r.sent(),[2,(0,A.buildMatroskaMimeType)({isWebM:this.isWebM,hasVideo:this.segments.some(function(e){return e.tracks.some(function(e){var r;return(null==(r=e.info)?void 0:r.type)==="video"})}),hasAudio:this.segments.some(function(e){return e.tracks.some(function(e){var r;return(null==(r=e.info)?void 0:r.type)==="audio"})}),codecStrings:e.filter(Boolean)})]}})}).call(this)}},{key:"getMetadataTags",value:function(){return(0,f._)(function(){var e,r,n,a,i,s,o,c,u,l,d,f,h,m;return(0,y._)(this,function(p){switch(p.label){case 0:return[4,this.readMetadata()];case 1:p.sent(),e=!0,r=!1,n=void 0,p.label=2;case 2:p.trys.push([2,8,9,10]),a=this.segments[Symbol.iterator](),p.label=3;case 3:if(e=(i=a.next()).done)return[3,7];if((s=i.value).metadataTagsCollected)return[3,6];if(null===this.reader.fileSize)return[3,5];return[4,this.loadSegmentMetadata(s)];case 4:p.sent(),p.label=5;case 5:s.metadataTagsCollected=!0,p.label=6;case 6:return e=!0,[3,3];case 7:return[3,10];case 8:return o=p.sent(),r=!0,n=o,[3,10];case 9:try{e||null==a.return||a.return()}finally{if(r)throw n}return[7];case 10:c={},u=!0,l=!1,d=void 0;try{for(f=this.segments[Symbol.iterator]();!(u=(h=f.next()).done);u=!0)m=h.value,c=(0,b._)({},c,m.metadataTags)}catch(e){l=!0,d=e}finally{try{u||null==f.return||f.return()}finally{if(l)throw d}}return[2,c]}})}).call(this)}},{key:"readMetadata",value:function(){var e;return null!=(e=this.readMetadataPromise)?e:this.readMetadataPromise=(0,f._)(function(){var e,r,n,a,i,s,o,c;return(0,y._)(this,function(u){switch(u.label){case 0:e=0,u.label=1;case 1:if(!((r=this.reader.requestSliceRange(e,C.MIN_HEADER_SIZE,C.MAX_HEADER_SIZE))instanceof Promise))return[3,3];return[4,r];case 2:r=u.sent(),u.label=3;case 3:if(!r||!(n=(0,C.readElementHeader)(r)))return[3,12];if(a=n.id,i=n.size,s=r.filePos,a!==C.EBMLId.EBML)return[3,6];if((0,C.assertDefinedSize)(i),!((o=this.reader.requestSlice(s,i))instanceof Promise))return[3,5];return[4,o];case 4:o=u.sent(),u.label=5;case 5:if(!o)return[3,12];return this.readContiguousElements(o),[3,11];case 6:if(a!==C.EBMLId.Segment)return[3,8];return[4,this.readSegment(s,i)];case 7:if(u.sent(),null===i||null===this.reader.fileSize)return[3,12];return[3,11];case 8:if(a!==C.EBMLId.Cluster)return[3,11];if(null===this.reader.fileSize)return[3,12];if(null!==i)return[3,10];return[4,(0,C.searchForNextElementId)(this.reader,s,C.LEVEL_0_AND_1_EBML_IDS,this.reader.fileSize)];case 9:i=u.sent().pos-s,u.label=10;case 10:(c=(0,j.last)(this.segments))&&(c.elementEndPos=s+i),u.label=11;case 11:return(0,C.assertDefinedSize)(i),e=s+i,[3,1];case 12:return[2]}})}).call(this)}},{key:"readSegment",value:function(e,r){return(0,f._)(function(){var n,a,i,s,o,c,u,l,d,f,h,m,p,g,b,k,_,S,T,x,I,E,j,P,A,B,D,F,R,U,O,L,N,z,V,H,G,q,W,K,X,Z;return(0,y._)(this,function(Q){switch(Q.label){case 0:a=function(){var e,r,a,s,o,c,u,l,d,f,h,m;return(0,y._)(this,function(p){switch(p.label){case 0:if(!((e=n.reader.requestSliceRange(i,C.MIN_HEADER_SIZE,C.MAX_HEADER_SIZE))instanceof Promise))return[3,2];return[4,e];case 1:e=p.sent(),p.label=2;case 2:if(!e)return[2,"break"];if(r=i,!(!(a=(0,C.readElementHeader)(e))||!C.LEVEL_1_EBML_IDS.includes(a.id)&&a.id!==C.EBMLId.Void))return[3,4];return[4,(0,C.resync)(n.reader,r,C.LEVEL_1_EBML_IDS,Math.min(null!=(s=n.currentSegment.elementEndPos)?s:1/0,r+0xa00000))];case 3:if(o=p.sent())return i=o,[2,"continue"];return[2,"break"];case 4:if(c=a.id,u=a.size,l=e.filePos,-1===(d=M.findIndex(function(e){return e.id===c})))return[3,7];if(f=M[d].flag,n.currentSegment[f]=!0,(0,C.assertDefinedSize)(u),!((h=n.reader.requestSlice(l,u))instanceof Promise))return[3,6];return[4,h];case 5:h=p.sent(),p.label=6;case 6:return h&&n.readContiguousElements(h),[3,11];case 7:if(c!==C.EBMLId.Tags&&c!==C.EBMLId.Attachments)return[3,10];if(c===C.EBMLId.Tags?n.currentSegment.tagsSeen=!0:n.currentSegment.attachmentsSeen=!0,(0,C.assertDefinedSize)(u),!((m=n.reader.requestSlice(l,u))instanceof Promise))return[3,9];return[4,m];case 8:m=p.sent(),p.label=9;case 9:return m&&n.readContiguousElements(m),[3,11];case 10:if(c===C.EBMLId.Cluster)return n.currentSegment.clusterSeekStartPos=r,[2,"break"];p.label=11;case 11:if(null===u)return[2,"break"];return i=l+u,[2]}})},this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:null===r?null:e+r,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment),i=e,Q.label=1;case 1:if(!(null===this.currentSegment.elementEndPos||i<this.currentSegment.elementEndPos))return[3,3];return n=this,[5,(0,w._)(a())];case 2:if("break"===Q.sent())return[3,3];return[3,1];case 3:if(this.currentSegment.seekEntries.sort(function(e,r){return e.segmentPosition-r.segmentPosition}),s=!0,o=!1,c=void 0,null===this.reader.fileSize)return[3,11];Q.label=4;case 4:Q.trys.push([4,9,10,11]),l=function(){var r,n,a,i,s,o,c;return(0,y._)(this,function(l){switch(l.label){case 0:if(r=f.value,!(n=M.find(function(e){return e.id===r.id}))||u.currentSegment[n.flag])return[2,"continue"];if(!((a=u.reader.requestSliceRange(e+r.segmentPosition,C.MIN_HEADER_SIZE,C.MAX_HEADER_SIZE))instanceof Promise))return[3,2];return[4,a];case 1:a=l.sent(),l.label=2;case 2:if(!a||!(i=(0,C.readElementHeader)(a))||(s=i.id,o=i.size,s!==n.id))return[2,"continue"];if((0,C.assertDefinedSize)(o),u.currentSegment[n.flag]=!0,!((c=u.reader.requestSlice(a.filePos,o))instanceof Promise))return[3,4];return[4,c];case 3:c=l.sent(),l.label=4;case 4:if(!c)return[2,"continue"];return u.readContiguousElements(c),[2]}})},d=this.currentSegment.seekEntries[Symbol.iterator](),Q.label=5;case 5:if(s=(f=d.next()).done)return[3,8];return u=this,[5,(0,w._)(l())];case 6:Q.sent(),Q.label=7;case 7:return s=!0,[3,5];case 8:return[3,11];case 9:return h=Q.sent(),o=!0,c=h,[3,11];case 10:try{s||null==d.return||d.return()}finally{if(o)throw c}return[7];case 11:-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3),this.currentSegment.tracks.sort(function(e,r){return Number(r.disposition.default)-Number(e.disposition.default)}),m=new Map(this.currentSegment.tracks.map(function(e){return[e.id,e]})),p=!0,g=!1,b=void 0;try{for(k=this.currentSegment.cuePoints[Symbol.iterator]();!(p=(_=k.next()).done);p=!0)S=_.value,(T=m.get(S.trackId))&&T.cuePoints.push(S)}catch(e){g=!0,b=e}finally{try{p||null==k.return||k.return()}finally{if(g)throw b}}x=!0,I=!1,E=void 0;try{for(j=this.currentSegment.tracks[Symbol.iterator]();!(x=(P=j.next()).done);x=!0)for((A=P.value).cuePoints.sort(function(e,r){return e.time-r.time}),B=0;B<A.cuePoints.length-1;B++)D=A.cuePoints[B],F=A.cuePoints[B+1],D.time===F.time&&(A.cuePoints.splice(B+1,1),B--)}catch(e){I=!0,E=e}finally{try{x||null==j.return||j.return()}finally{if(I)throw E}}R=null,U=-1/0,O=!0,L=!1,N=void 0;try{for(z=this.currentSegment.tracks[Symbol.iterator]();!(O=(V=z.next()).done);O=!0)(H=V.value).cuePoints.length>U&&(U=H.cuePoints.length,R=H)}catch(e){L=!0,N=e}finally{try{O||null==z.return||z.return()}finally{if(L)throw N}}G=!0,q=!1,W=void 0;try{for(K=this.currentSegment.tracks[Symbol.iterator]();!(G=(X=K.next()).done);G=!0)Z=X.value,0===Z.cuePoints.length&&(Z.cuePoints=R.cuePoints)}catch(e){q=!0,W=e}finally{try{G||null==K.return||K.return()}finally{if(q)throw W}}return this.currentSegment=null,[2]}})}).call(this)}},{key:"readCluster",value:function(e,r){return(0,f._)(function(){var n,a,i,s,o,u,l,d,f,h,m,p,g,b,_,w,S,T,x,I,E,P,A,B,M;return(0,y._)(this,function(y){switch(y.label){case 0:if((null==(n=r.lastReadCluster)?void 0:n.elementStartPos)===e)return[2,r.lastReadCluster];if(!((a=this.reader.requestSliceRange(e,C.MIN_HEADER_SIZE,C.MAX_HEADER_SIZE))instanceof Promise))return[3,2];return[4,a];case 1:a=y.sent(),y.label=2;case 2:if((0,j.assert)(a),i=e,s=(0,C.readElementHeader)(a),(0,j.assert)(s),o=s.id,(0,j.assert)(o===C.EBMLId.Cluster),u=s.size,l=a.filePos,null!==u)return[3,4];return[4,(0,C.searchForNextElementId)(this.reader,l,C.LEVEL_0_AND_1_EBML_IDS,r.elementEndPos)];case 3:u=y.sent().pos-l,y.label=4;case 4:if(!((d=this.reader.requestSlice(l,u))instanceof Promise))return[3,6];return[4,d];case 5:d=y.sent(),y.label=6;case 6:f={segment:r,elementStartPos:i,elementEndPos:l+u,dataStartPos:l,timestamp:-1,trackData:new Map},this.currentCluster=f,d&&(f.elementEndPos=this.readContiguousElements(d,C.LEVEL_0_AND_1_EBML_IDS)),h=!0,m=!1,p=void 0;try{for(g=f.trackData[Symbol.iterator]();!(h=(b=g.next()).done);h=!0){for(w=(_=(0,k._)(b.value,2)[1]).track,(0,j.assert)(_.blocks.length>0),S=!1,T=0;T<_.blocks.length;T++)x=_.blocks[T],x.timestamp+=f.timestamp,S||(S=x.lacing!==c.None);for(I=0,_.presentationTimestamps=_.blocks.map(function(e,r){return{timestamp:e.timestamp,blockIndex:r}}).sort(function(e,r){return e.timestamp-r.timestamp});I<_.presentationTimestamps.length;I++)E=_.presentationTimestamps[I],P=_.blocks[E.blockIndex],null===_.firstKeyFrameTimestamp&&P.isKeyFrame&&(_.firstKeyFrameTimestamp=P.timestamp),I<_.presentationTimestamps.length-1?P.duration=_.presentationTimestamps[I+1].timestamp-P.timestamp:0===P.duration&&null!=w.defaultDuration&&P.lacing===c.None&&(P.duration=w.defaultDuration);S&&(this.expandLacedBlocks(_.blocks,w),_.presentationTimestamps=_.blocks.map(function(e,r){return{timestamp:e.timestamp,blockIndex:r}}).sort(function(e,r){return e.timestamp-r.timestamp})),A=_.blocks[_.presentationTimestamps[0].blockIndex],B=_.blocks[(0,j.last)(_.presentationTimestamps).blockIndex],_.startTimestamp=A.timestamp,_.endTimestamp=B.timestamp+B.duration,M=(0,j.binarySearchLessOrEqual)(w.clusterPositionCache,_.startTimestamp,function(e){return e.startTimestamp}),(-1===M||w.clusterPositionCache[M].elementStartPos!==i)&&w.clusterPositionCache.splice(M+1,0,{elementStartPos:f.elementStartPos,startTimestamp:_.startTimestamp})}}catch(e){m=!0,p=e}finally{try{h||null==g.return||g.return()}finally{if(m)throw p}}return r.lastReadCluster=f,[2,f]}})}).call(this)}},{key:"getTrackDataInCluster",value:function(e,r){var n=e.trackData.get(r);if(!n){var a=e.segment.tracks.find(function(e){return e.id===r});if(!a)return null;n={track:a,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(r,n)}return n}},{key:"expandLacedBlocks",value:function(e,r){for(var n=0;n<e.length;n++){var a,i=e[n];if(i.lacing!==c.None){i.decoded||(i.data=this.decodeBlockData(r,i.data),i.decoded=!0);var s=B.FileSlice.tempFromBytes(i.data),o=[],u=(0,B.readU8)(s)+1;switch(i.lacing){case c.Xiph:for(var l=0,d=0;d<u-1;d++)for(var f=0;s.bufferPos<s.length;){var h=(0,B.readU8)(s);if(f+=h,h<255){o.push(f),l+=f;break}}o.push(s.length-(s.bufferPos+l));break;case c.FixedSize:for(var m=Math.floor((s.length-1)/u),p=0;p<u;p++)o.push(m);break;case c.Ebml:var g=(0,C.readVarInt)(s);(0,j.assert)(null!==g);var b=g;o.push(b);for(var k=b,_=1;_<u-1;_++){var y=s.bufferPos,w=(0,C.readVarInt)(s);(0,j.assert)(null!==w),b+=w-((1<<7*(s.bufferPos-y)-1)-1),o.push(b),k+=b}o.push(s.length-(s.bufferPos+k));break;default:(0,j.assert)(!1)}(0,j.assert)(o.length===u),e.splice(n,1);for(var S=i.duration||u*(null!=(a=r.defaultDuration)?a:0),T=0;T<u;T++){var x=o[T],I=(0,B.readBytes)(s,x),E=i.timestamp+S*T/u,P=S/u;e.splice(n+T,0,{timestamp:E,duration:P,isKeyFrame:i.isKeyFrame,data:I,lacing:c.None,decoded:!0,mainAdditional:i.mainAdditional})}n+=u,n--}}}},{key:"loadSegmentMetadata",value:function(e){return(0,f._)(function(){var r,n,a,i,s,o,c,u,l,d,f;return(0,y._)(this,function(h){switch(h.label){case 0:r=!0,n=!1,a=void 0,h.label=1;case 1:h.trys.push([1,9,10,11]),i=e.seekEntries[Symbol.iterator](),h.label=2;case 2:if(r=(s=i.next()).done)return[3,8];if(((o=s.value).id!==C.EBMLId.Tags||e.tagsSeen)&&(o.id!==C.EBMLId.Attachments||e.attachmentsSeen))return[3,7];if(!((c=this.reader.requestSliceRange(e.dataStartPos+o.segmentPosition,C.MIN_HEADER_SIZE,C.MAX_HEADER_SIZE))instanceof Promise))return[3,4];return[4,c];case 3:c=h.sent(),h.label=4;case 4:if(!c||!(u=(0,C.readElementHeader)(c))||u.id!==o.id)return[3,7];if(l=u.size,(0,C.assertDefinedSize)(l),(0,j.assert)(!this.currentSegment),this.currentSegment=e,!((d=this.reader.requestSlice(c.filePos,l))instanceof Promise))return[3,6];return[4,d];case 5:d=h.sent(),h.label=6;case 6:d&&this.readContiguousElements(d),this.currentSegment=null,o.id===C.EBMLId.Tags?e.tagsSeen=!0:o.id===C.EBMLId.Attachments&&(e.attachmentsSeen=!0),h.label=7;case 7:return r=!0,[3,2];case 8:return[3,11];case 9:return f=h.sent(),n=!0,a=f,[3,11];case 10:try{r||null==i.return||i.return()}finally{if(n)throw a}return[7];case 11:return[2]}})}).call(this)}},{key:"readContiguousElements",value:function(e,r){for(var n=e.filePos;e.filePos-n<=e.length-C.MIN_HEADER_SIZE;){var a=e.filePos;if(!this.traverseElement(e,r))return a}return e.filePos}},{key:"traverseElement",value:function(e,r){var n,a,i,s,o=(0,C.readElementHeader)(e);if(!o||r&&r.includes(o.id))return!1;var c=o.id,d=o.size,f=e.filePos;switch((0,C.assertDefinedSize)(d),c){case C.EBMLId.DocType:this.isWebM="webm"===(0,C.readAsciiString)(e,d);break;case C.EBMLId.Seek:if(!this.currentSegment)break;var h={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(h),this.readContiguousElements(e.slice(f,d)),(-1===h.id||-1===h.segmentPosition)&&this.currentSegment.seekEntries.pop();break;case C.EBMLId.SeekID:var m,p=null==(m=this.currentSegment)?void 0:m.seekEntries[this.currentSegment.seekEntries.length-1];if(!p)break;p.id=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.SeekPosition:var g,k=null==(g=this.currentSegment)?void 0:g.seekEntries[this.currentSegment.seekEntries.length-1];if(!k)break;k.segmentPosition=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=(0,C.readUnsignedInt)(e,d),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case C.EBMLId.Duration:if(!this.currentSegment)break;this.currentSegment.duration=(0,C.readFloat)(e,d);break;case C.EBMLId.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:(0,b._)({},E.DEFAULT_TRACK_DISPOSITION),inputTrack:null,codecId:null,codecPrivate:null,defaultDuration:null,name:null,languageCode:j.UNDETERMINED_LANGUAGE,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(f,d)),this.currentTrack.decodingInstructions.some(function(e){var r;return(null==(r=e.data)?void 0:r.type)!=="decompress"||e.scope!==u.Block||e.data.algorithm!==l.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 _=this.currentTrack.codecId.indexOf("/"),y=-1===_?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,_);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){this.currentTrack.codecId===C.CODEC_STRING_MAP.avc?(this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===C.CODEC_STRING_MAP.hevc?(this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):y===C.CODEC_STRING_MAP.vp8?this.currentTrack.info.codec="vp8":y===C.CODEC_STRING_MAP.vp9?this.currentTrack.info.codec="vp9":y===C.CODEC_STRING_MAP.av1&&(this.currentTrack.info.codec="av1");var w=this.currentTrack,S=new(0,I.InputVideoTrack)(this.input,new R(w));this.currentTrack.inputTrack=S,this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type&&-1!==this.currentTrack.info.numberOfChannels&&-1!==this.currentTrack.info.sampleRate){y===C.CODEC_STRING_MAP.aac?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2")},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===C.CODEC_STRING_MAP.mp3?this.currentTrack.info.codec="mp3":y===C.CODEC_STRING_MAP.opus?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=T.OPUS_SAMPLE_RATE):y===C.CODEC_STRING_MAP.vorbis?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):y===C.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 x=this.currentTrack,P=new(0,I.InputAudioTrack)(this.input,new U(x));this.currentTrack.inputTrack=P,this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case C.EBMLId.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.TrackType:if(!this.currentTrack)break;var A=(0,C.readUnsignedInt)(e,d);1===A?this.currentTrack.info={type:"video",width:-1,height:-1,rotation:0,codec:null,codecDescription:null,colorSpace:null,alphaMode:!1}:2===A&&(this.currentTrack.info={type:"audio",numberOfChannels:-1,sampleRate:-1,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null});break;case C.EBMLId.FlagEnabled:if(!this.currentTrack)break;(0,C.readUnsignedInt)(e,d)||(this.currentSegment.tracks.pop(),this.currentTrack=null);break;case C.EBMLId.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=(0,C.readAsciiString)(e,d);break;case C.EBMLId.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=(0,B.readBytes)(e,d);break;case C.EBMLId.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDuration=this.currentTrack.segment.timestampFactor*(0,C.readUnsignedInt)(e,d)/1e9;break;case C.EBMLId.Name:if(!this.currentTrack)break;this.currentTrack.name=(0,C.readUnicodeString)(e,d);break;case C.EBMLId.Language:if(!this.currentTrack||this.currentTrack.languageCode!==j.UNDETERMINED_LANGUAGE)break;this.currentTrack.languageCode=(0,C.readAsciiString)(e,d),(0,j.isIso639Dash2LanguageCode)(this.currentTrack.languageCode)||(this.currentTrack.languageCode=j.UNDETERMINED_LANGUAGE);break;case C.EBMLId.LanguageBCP47:if(!this.currentTrack)break;var M=(0,C.readAsciiString)(e,d).split("-")[0];M?this.currentTrack.languageCode=M:this.currentTrack.languageCode=j.UNDETERMINED_LANGUAGE;break;case C.EBMLId.Video:if((null==(F=this.currentTrack)||null==(D=F.info)?void 0:D.type)!=="video")break;this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.PixelWidth:if((null==(L=this.currentTrack)||null==(O=L.info)?void 0:O.type)!=="video")break;this.currentTrack.info.width=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.PixelHeight:if((null==(z=this.currentTrack)||null==(N=z.info)?void 0:N.type)!=="video")break;this.currentTrack.info.height=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.AlphaMode:if((null==(H=this.currentTrack)||null==(V=H.info)?void 0:V.type)!=="video")break;this.currentTrack.info.alphaMode=1===(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.Colour:if((null==(q=this.currentTrack)||null==(G=q.info)?void 0:G.type)!=="video")break;this.currentTrack.info.colorSpace={},this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.MatrixCoefficients:if((null==(K=this.currentTrack)||null==(W=K.info)?void 0:W.type)!=="video"||!this.currentTrack.info.colorSpace)break;var D,F,O,L,N,z,V,H,G,q,W,K,X,Z=(0,C.readUnsignedInt)(e,d),Q=null!=(X=j.MATRIX_COEFFICIENTS_MAP_INVERSE[Z])?X:null;this.currentTrack.info.colorSpace.matrix=Q;break;case C.EBMLId.Range:if((null==(J=this.currentTrack)||null==(Y=J.info)?void 0:Y.type)!=="video"||!this.currentTrack.info.colorSpace)break;this.currentTrack.info.colorSpace.fullRange=2===(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.TransferCharacteristics:if((null==(ee=this.currentTrack)||null==($=ee.info)?void 0:$.type)!=="video"||!this.currentTrack.info.colorSpace)break;var Y,J,$,ee,et,er=(0,C.readUnsignedInt)(e,d),en=null!=(et=j.TRANSFER_CHARACTERISTICS_MAP_INVERSE[er])?et:null;this.currentTrack.info.colorSpace.transfer=en;break;case C.EBMLId.Primaries:if((null==(ei=this.currentTrack)||null==(ea=ei.info)?void 0:ea.type)!=="video"||!this.currentTrack.info.colorSpace)break;var ea,ei,es,eo=(0,C.readUnsignedInt)(e,d),ec=null!=(es=j.COLOR_PRIMARIES_MAP_INVERSE[eo])?es:null;this.currentTrack.info.colorSpace.primaries=ec;break;case C.EBMLId.Projection:if((null==(el=this.currentTrack)||null==(eu=el.info)?void 0:eu.type)!=="video")break;this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.ProjectionPoseRoll:if((null==(ef=this.currentTrack)||null==(ed=ef.info)?void 0:ed.type)!=="video")break;var eu,el,ed,ef,eh=(0,C.readFloat)(e,d);try{this.currentTrack.info.rotation=(0,j.normalizeRotation)(-eh)}catch(e){}break;case C.EBMLId.Audio:if((null==(eg=this.currentTrack)||null==(ep=eg.info)?void 0:ep.type)!=="audio")break;this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.SamplingFrequency:if((null==(eb=this.currentTrack)||null==(ev=eb.info)?void 0:ev.type)!=="audio")break;this.currentTrack.info.sampleRate=(0,C.readFloat)(e,d);break;case C.EBMLId.Channels:if((null==(e_=this.currentTrack)||null==(ek=e_.info)?void 0:ek.type)!=="audio")break;this.currentTrack.info.numberOfChannels=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.BitDepth:if((null==(ew=this.currentTrack)||null==(ey=ew.info)?void 0:ey.type)!=="audio")break;this.currentTrack.info.bitDepth=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(f,d)),this.currentCueTime=null;break;case C.EBMLId.CueTime:this.currentCueTime=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.CueTrackPositions:if(null===this.currentCueTime)break;(0,j.assert)(this.currentSegment);var em={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(em),this.readContiguousElements(e.slice(f,d)),(-1===em.trackId||-1===em.clusterPosition)&&this.currentSegment.cuePoints.pop();break;case C.EBMLId.CueTrack:var ep,eg,ev,eb,ek,e_,ey,ew,eS,eT=null==(eS=this.currentSegment)?void 0:eS.cuePoints[this.currentSegment.cuePoints.length-1];if(!eT)break;eT.trackId=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.CueClusterPosition:var ex,eI=null==(ex=this.currentSegment)?void 0:ex.cuePoints[this.currentSegment.cuePoints.length-1];if(!eI)break;(0,j.assert)(this.currentSegment),eI.clusterPosition=this.currentSegment.dataStartPos+(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.SimpleBlock:if(!this.currentCluster)break;var eE,ej=(0,C.readVarInt)(e);if(null===ej)break;var eP=this.getTrackDataInCluster(this.currentCluster,ej);if(!eP)break;var eC=(0,B.readI16Be)(e),eA=(0,B.readU8)(e),eB=!!(128&eA);(null==(eE=eP.track.info)?void 0:eE.type)==="audio"&&eP.track.info.codec&&(eB=!0);var eM=(0,B.readBytes)(e,d-(e.filePos-f)),eD=eP.track.decodingInstructions.length>0;eP.blocks.push({timestamp:eC,duration:0,isKeyFrame:eB,data:eM,lacing:eA>>1&3,decoded:!eD,mainAdditional:null});break;case C.EBMLId.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(f,d)),this.currentBlock=null;break;case C.EBMLId.Block:if(!this.currentCluster)break;var eF=(0,C.readVarInt)(e);if(null===eF)break;var eR=this.getTrackDataInCluster(this.currentCluster,eF);if(!eR)break;var eU=(0,B.readI16Be)(e),eO=(0,B.readU8)(e),eL=(0,B.readBytes)(e,d-(e.filePos-f)),eN=eR.track.decodingInstructions.length>0;this.currentBlock={timestamp:eU,duration:0,isKeyFrame:!0,data:eL,lacing:eO>>1&3,decoded:!eN,mainAdditional:null},eR.blocks.push(this.currentBlock);break;case C.EBMLId.BlockAdditions:this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(f,d)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case C.EBMLId.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=(0,B.readBytes)(e,d);break;case C.EBMLId.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case C.EBMLId.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.Targets:this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.TargetTypeValue:50!==(0,C.readUnsignedInt)(e,d)&&(this.currentTagTargetIsMovie=!1);break;case C.EBMLId.TagTrackUID:case C.EBMLId.TagEditionUID:case C.EBMLId.TagChapterUID:case C.EBMLId.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case C.EBMLId.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.TagName:this.currentSimpleTagName=(0,C.readUnicodeString)(e,d);break;case C.EBMLId.TagString:if(!this.currentSimpleTagName)break;var ez=(0,C.readUnicodeString)(e,d);this.processTagValue(this.currentSimpleTagName,ez);break;case C.EBMLId.TagBinary:if(!this.currentSimpleTagName)break;var eV=(0,B.readBytes)(e,d);this.processTagValue(this.currentSimpleTagName,eV);break;case C.EBMLId.AttachedFile:if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(f,d));var eH=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(null!=eH.raw||(eH.raw={}),eH.raw[this.currentAttachedFile.fileUid.toString()]=new(0,E.AttachedFile)(this.currentAttachedFile.fileData,null!=(eq=this.currentAttachedFile.fileMediaType)?eq:void 0,null!=(eW=this.currentAttachedFile.fileName)?eW:void 0,null!=(eK=this.currentAttachedFile.fileDescription)?eK:void 0)),(null==(eG=this.currentAttachedFile.fileMediaType)?void 0:eG.startsWith("image/"))&&this.currentAttachedFile.fileData){var eG,eq,eW,eK,eX,eZ,eQ=this.currentAttachedFile.fileName,eY="unknown";if(eQ){var eJ=eQ.toLowerCase();eJ.startsWith("cover.")?eY="coverFront":eJ.startsWith("back.")&&(eY="coverBack")}null!=eH.images||(eH.images=[]),eH.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:eY,name:null!=(eX=this.currentAttachedFile.fileName)?eX:void 0,description:null!=(eZ=this.currentAttachedFile.fileDescription)?eZ:void 0})}this.currentAttachedFile=null;break;case C.EBMLId.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=(0,C.readUnsignedBigInt)(e,d);break;case C.EBMLId.FileName:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=(0,C.readUnicodeString)(e,d);break;case C.EBMLId.FileMediaType:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=(0,C.readAsciiString)(e,d);break;case C.EBMLId.FileData:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=(0,B.readBytes)(e,d);break;case C.EBMLId.FileDescription:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=(0,C.readUnicodeString)(e,d);break;case C.EBMLId.ContentEncodings:if(!this.currentTrack)break;this.readContiguousElements(e.slice(f,d)),this.currentTrack.decodingInstructions.sort(function(e,r){return r.order-e.order});break;case C.EBMLId.ContentEncoding:this.currentDecodingInstruction={order:0,scope:u.Block,data:null},this.readContiguousElements(e.slice(f,d)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case C.EBMLId.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:l.Zlib,settings:null},this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.ContentCompAlgo:if((null==(a=this.currentDecodingInstruction)||null==(n=a.data)?void 0:n.type)!=="decompress")break;this.currentDecodingInstruction.data.algorithm=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.ContentCompSettings:if((null==(s=this.currentDecodingInstruction)||null==(i=s.data)?void 0:i.type)!=="decompress")break;this.currentDecodingInstruction.data.settings=(0,B.readBytes)(e,d);break;case C.EBMLId.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=f+d,!0}},{key:"decodeBlockData",value:function(e,r){(0,j.assert)(e.decodingInstructions.length>0);var n=r,a=!0,i=!1,s=void 0;try{for(var o,c=e.decodingInstructions[Symbol.iterator]();!(a=(o=c.next()).done);a=!0){var u=o.value;if((0,j.assert)(u.data),"decompress"===u.data.type&&u.data.algorithm===l.HeaderStripping&&u.data.settings&&u.data.settings.length>0){var d=u.data.settings,f=new Uint8Array(d.length+n.length);f.set(d,0),f.set(n,d.length),n=f}}}catch(e){i=!0,s=e}finally{try{a||null==c.return||c.return()}finally{if(i)throw s}}return n}},{key:"processTagValue",value:function(e,r){if(null==(a=this.currentSegment)?void 0:a.metadataTags){var n=this.currentSegment.metadataTags;if(null!=n.raw||(n.raw={}),null!=(i=n.raw)[e]||(i[e]=r),"string"==typeof r)switch(e.toLowerCase()){case"title":null!=n.title||(n.title=r);break;case"description":null!=n.description||(n.description=r);break;case"artist":null!=n.artist||(n.artist=r);break;case"album":null!=n.album||(n.album=r);break;case"album_artist":null!=n.albumArtist||(n.albumArtist=r);break;case"genre":null!=n.genre||(n.genre=r);break;case"comment":null!=n.comment||(n.comment=r);break;case"lyrics":null!=n.lyrics||(n.lyrics=r);break;case"date":var a,i,s=new Date(r);Number.isNaN(s.getTime())||null!=n.date||(n.date=s);break;case"track_number":case"part_number":var o=r.split("/"),c=Number.parseInt(o[0],10),u=o[1]&&Number.parseInt(o[1],10);Number.isInteger(c)&&c>0&&(null!=n.trackNumber||(n.trackNumber=c)),u&&Number.isInteger(u)&&u>0&&(null!=n.tracksTotal||(n.tracksTotal=u));break;case"disc_number":case"disc":var l=r.split("/"),d=Number.parseInt(l[0],10),f=l[1]&&Number.parseInt(l[1],10);Number.isInteger(d)&&d>0&&(null!=n.discNumber||(n.discNumber=d)),f&&Number.isInteger(f)&&f>0&&(null!=n.discsTotal||(n.discsTotal=f))}}}}]),r}(x.Demuxer),F=function(){"use strict";function e(r){(0,m._)(this,e),this.internalTrack=r,this.packetToClusterLocation=new WeakMap}return(0,p._)(e,[{key:"getId",value:function(){return this.internalTrack.id}},{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,f._)(function(){var e,r,n;return(0,y._)(this,function(a){switch(a.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(r=null==(e=a.sent())?void 0:e.timestamp)?r:0)+(null!=(n=null==e?void 0:e.duration)?n: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,f._)(function(){var e,r;return(0,y._)(this,function(n){switch(n.label){case 0:return[4,this.getFirstPacket({metadataOnly:!0})];case 1:return[2,null!=(r=null==(e=n.sent())?void 0:e.timestamp)?r: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,f._)(function(){var r;return(0,y._)(this,function(n){return r=this,[2,this.performClusterLookup(null,function(e){return e.trackData.get(r.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,e)]})}).call(this)}},{key:"intoTimescale",value:function(e){return(0,j.roundIfAlmostInteger)(e*this.internalTrack.segment.timestampFactor)}},{key:"getPacket",value:function(e,r){return(0,f._)(function(){var n,a;return(0,y._)(this,function(i){return n=this,a=this.intoTimescale(e),[2,this.performClusterLookup(null,function(e){var r=e.trackData.get(n.internalTrack.id);if(!r)return{blockIndex:-1,correctBlockFound:!1};var i=(0,j.binarySearchLessOrEqual)(r.presentationTimestamps,a,function(e){return e.timestamp});return{blockIndex:-1!==i?r.presentationTimestamps[i].blockIndex:-1,correctBlockFound:-1!==i&&a<r.endTimestamp}},a,a,r)]})}).call(this)}},{key:"getNextPacket",value:function(e,r){return(0,f._)(function(){var n,a;return(0,y._)(this,function(i){if(n=this,void 0===(a=this.packetToClusterLocation.get(e)))throw Error("Packet was not created from this track.");return[2,this.performClusterLookup(a.cluster,function(e){if(e===a.cluster){var r=e.trackData.get(n.internalTrack.id);if(a.blockIndex+1<r.blocks.length)return{blockIndex:a.blockIndex+1,correctBlockFound:!0}}else if(e.trackData.get(n.internalTrack.id))return{blockIndex:0,correctBlockFound:!0};return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,r)]})}).call(this)}},{key:"getKeyPacket",value:function(e,r){return(0,f._)(function(){var n,a;return(0,y._)(this,function(i){return n=this,a=this.intoTimescale(e),[2,this.performClusterLookup(null,function(e){var r=e.trackData.get(n.internalTrack.id);if(!r)return{blockIndex:-1,correctBlockFound:!1};var i=(0,j.findLastIndex)(r.presentationTimestamps,function(e){return r.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=a});return{blockIndex:-1!==i?r.presentationTimestamps[i].blockIndex:-1,correctBlockFound:-1!==i&&a<r.endTimestamp}},a,a,r)]})}).call(this)}},{key:"getNextKeyPacket",value:function(e,r){return(0,f._)(function(){var 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4:return[4,(0,y.readNextFrameHeader)(this.reader,this.lastLoadedPos,this.reader.fileSize)];case 5:if(!(n=l.sent()))return this.lastSampleLoaded=!0,[2];if(a=n.header,this.lastLoadedPos=n.startPos+a.totalSize-1,i=(0,k.getXingOffset)(a.mpegVersionId,a.channel),!((s=this.reader.requestSlice(n.startPos+i,4))instanceof Promise))return[3,7];return[4,s];case 6:s=l.sent(),l.label=7;case 7:if(s&&((o=(0,w.readU32Be)(s))===k.XING||o===k.INFO))return[2];return this.firstFrameHeader||(this.firstFrameHeader=a),a.sampleRate!==this.firstFrameHeader.sampleRate&&console.warn("MP3 changed sample rate mid-file: ".concat(this.firstFrameHeader.sampleRate," Hz to ").concat(a.sampleRate," Hz.")+" Might be a bug, so please report this 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e,r,n,a,i,s,o;return(0,f._)(this,function(c){switch(c.label){case 0:return[4,this.readingMutex.acquire()];case 1:e=c.sent(),c.label=2;case 2:return c.trys.push([2,,13,14]),[4,this.readMetadata()];case 3:if(c.sent(),this.metadataTags)return[2,this.metadataTags];this.metadataTags={},r=0,n=!1,c.label=4;case 4:if(!((a=this.reader.requestSlice(r,_.ID3_V2_HEADER_SIZE))instanceof Promise))return[3,6];return[4,a];case 5:a=c.sent(),c.label=6;case 6:if(!a||!(i=(0,_.readId3V2Header)(a)))return[3,9];if(n=!0,!((s=this.reader.requestSlice(a.filePos,i.size))instanceof Promise))return[3,8];return[4,s];case 7:s=c.sent(),c.label=8;case 8:if(!s)return[3,9];return(0,_.parseId3V2Tag)(s,i,this.metadataTags),r=a.filePos+i.size,[3,4];case 9:if(!(!n&&null!==this.reader.fileSize&&this.reader.fileSize>=_.ID3_V1_TAG_SIZE))return[3,12];if(!((o=this.reader.requestSlice(this.reader.fileSize-_.ID3_V1_TAG_SIZE,_.ID3_V1_TAG_SIZE))instanceof Promise))return[3,11];return[4,o];case 10:o=c.sent(),c.label=11;case 11:(0,g.assert)(o),"TAG"===(0,w.readAscii)(o,3)&&(0,_.parseId3V1Tag)(o,this.metadataTags),c.label=12;case 12:return[2,this.metadataTags];case 13:return e(),[7];case 14:return[2]}})}).call(this)}}]),r}(h.Demuxer),T=function(){"use strict";function e(r){(0,c._)(this,e),this.demuxer=r}return(0,u._)(e,[{key:"getId",value:function(){return 1}},{key:"getFirstTimestamp",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){return[2,0]})})()}},{key:"getTimeResolution",value:function(){return(0,g.assert)(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}},{key:"computeDuration",value:function(){return(0,s._)(function(){var e,r,n;return(0,f._)(this,function(a){switch(a.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(r=null==(e=a.sent())?void 0:e.timestamp)?r:0)+(null!=(n=null==e?void 0:e.duration)?n:0)]}})}).call(this)}},{key:"getName",value:function(){return 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0:if(-1===e||!(n=this.demuxer.loadedSamples[e]))return[2,null];if(!r.metadataOnly)return[3,1];return a=b.PLACEHOLDER_DATA,[3,4];case 1:if(!((i=this.demuxer.reader.requestSlice(n.dataStart,n.dataSize))instanceof Promise))return[3,3];return[4,i];case 2:i=s.sent(),s.label=3;case 3:if(!i)return[2,null];a=(0,w.readBytes)(i,n.dataSize),s.label=4;case 4:return[2,new(0,b.EncodedPacket)(a,"key",n.timestamp,n.duration,e,n.dataSize)]}})}).call(this)}},{key:"getFirstPacket",value:function(e){return this.getPacketAtIndex(0,e)}},{key:"getNextPacket",value:function(e,r){return(0,s._)(function(){var n,a,i;return(0,f._)(this,function(s){switch(s.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:n=s.sent(),s.label=2;case 2:if(s.trys.push([2,,6,7]),-1===(a=(0,g.binarySearchExact)(this.demuxer.loadedSamples,e.timestamp,function(e){return e.timestamp})))throw Error("Packet was not created from this track.");i=a+1,s.label=3;case 3:if(!(i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded))return[3,5];return[4,this.demuxer.advanceReader()];case 4:return s.sent(),[3,3];case 5:return[2,this.getPacketAtIndex(i,r)];case 6:return n(),[7];case 7:return[2]}})}).call(this)}},{key:"getPacket",value:function(e,r){return(0,s._)(function(){var n,a;return(0,f._)(this,function(i){switch(i.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:n=i.sent(),i.label=2;case 2:i.trys.push([2,,6,7]),i.label=3;case 3:if(-1===(a=(0,g.binarySearchLessOrEqual)(this.demuxer.loadedSamples,e,function(e){return e.timestamp}))&&this.demuxer.loadedSamples.length>0)return[2,null];if(this.demuxer.lastSampleLoaded||a>=0&&a+1<this.demuxer.loadedSamples.length)return[2,this.getPacketAtIndex(a,r)];return[4,this.demuxer.advanceReader()];case 4:return i.sent(),[3,3];case 5:return[3,7];case 6:return n(),[7];case 7:return[2]}})}).call(this)}},{key:"getKeyPacket",value:function(e,r){return this.getPacket(e,r)}},{key:"getNextKeyPacket",value:function(e,r){return this.getNextPacket(e,r)}}]),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","../demuxer.js":"d4thC","../input-track.js":"b22CJ","../metadata.js":"eSjom","../misc.js":"j7iGm","../packet.js":"QfqGG","../../shared/mp3-misc.js":"gcure","../id3.js":"42Y2c","./mp3-reader.js":"gFWvE","../reader.js":"8KRfO","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],gcure:[function(e,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"FRAME_HEADER_SIZE",function(){return s}),i.export(n,"SAMPLING_RATES",function(){return o}),i.export(n,"KILOBIT_RATES",function(){return 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3===e?3===r?21:36:3===r?13:21},h=function(e,r){var n,a=e>>>24,i=e>>>16&255,s=e>>>8&255,u=255&e;if(255!==a&&255!==i&&255!==s&&255!==u)return{header:null,bytesAdvanced:4};if(255!==a||(224&i)!=224)return{header:null,bytesAdvanced:1};var l=0,f=0;16&i?l=8&i?0:1:(l=1,f=1);var h=i>>3&3,m=i>>1&3,p=(s>>2&3)%3,g=c[64*l+16*m+(s>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};var b=1e3*g,k=o[p]>>l+f,_=d(l,m,b,k,s>>1&1);return null!==r&&r<_?{header:null,bytesAdvanced:1}:(n=3===h?3===m?384:1152:3===m?384:2===m?1152:576,{header:{totalSize:_,mpegVersionId:h,layer:m,bitrate:b,frequencyIndex:p,sampleRate:k,channel:u>>6&3,modeExtension:u>>4&3,copyright:u>>3&1,original:u>>2&1,emphasis:3&u,audioSamplesInFrame:n},bytesAdvanced:1})},m=function(e){for(var r=127,n=0,a=e;(0x7fffffff^r)!=0;)n=(a&~r)<<1|a&r,r=(r+1<<8)-1,a=n;return n},p=function(e){for(var r=0x7f000000,n=0;0!==r;)n>>=1,n|=e&r,r>>=8;return n}},{"@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],"42Y2c":[function(e,r,n,a){var i,s,o,c,u=e("@parcel/transformer-js/src/esmodule-helpers.js");u.defineInteropFlag(n),u.export(n,"Id3V2HeaderFlags",function(){return o}),u.export(n,"Id3V2TextEncoding",function(){return c}),u.export(n,"ID3_V1_TAG_SIZE",function(){return p}),u.export(n,"ID3_V2_HEADER_SIZE",function(){return g}),u.export(n,"ID3_V1_GENRES",function(){return b}),u.export(n,"parseId3V1Tag",function(){return k}),u.export(n,"readId3V1String",function(){return _}),u.export(n,"readId3V2Header",function(){return y}),u.export(n,"parseId3V2Tag",function(){return w}),u.export(n,"Id3V2Reader",function(){return S}),u.export(n,"Id3V2Writer",function(){return T});var l=e("@swc/helpers/cjs/_class_call_check.cjs"),d=e("@swc/helpers/cjs/_create_class.cjs"),f=e("../shared/mp3-misc.js"),h=e("./misc.js"),m=e("./reader.js");(i=o||(o={}))[i.Unsynchronisation=128]="Unsynchronisation",i[i.ExtendedHeader=64]="ExtendedHeader",i[i.ExperimentalIndicator=32]="ExperimentalIndicator",i[i.Footer=16]="Footer",(s=c||(c={}))[s.ISO_8859_1=0]="ISO_8859_1",s[s.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",s[s.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",s[s.UTF_8=3]="UTF_8";var p=128,g=10,b=["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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o=Number.parseInt(_(e,4),10);Number.isInteger(o)&&o>0&&(null!=r.date||(r.date=new Date(o,0,1)));var c=(0,m.readBytes)(e,30);if(0===c[28]&&0!==c[29]){var u,l,d=c[29];d>0&&(null!=r.trackNumber||(r.trackNumber=d)),e.skip(-30),l=_(e,28),e.skip(2)}else e.skip(-30),l=_(e,30);l&&(null!=r.comment||(r.comment=l));var f=(0,m.readU8)(e);f<b.length&&(null!=r.genre||(r.genre=b[f]))},_=function(e,r){for(var n=(0,m.readBytes)(e,r),a=(0,h.coalesceIndex)(n.indexOf(0),n.length),i=n.subarray(0,a),s="",o=0;o<i.length;o++)s+=String.fromCharCode(i[o]);return s.trimEnd()},y=function(e){var r=e.filePos,n=(0,m.readAscii)(e,3),a=(0,m.readU8)(e),i=(0,m.readU8)(e),s=(0,m.readU8)(e),o=(0,m.readU32Be)(e);return"ID3"!==n||255===a||255===i||(0x80808080&o)!=0?(e.filePos=r,null):{majorVersion:a,revision:i,flags:s,size:(0,f.decodeSynchsafe)(o)}},w=function(e,r,n){if(![2,3,4].includes(r.majorVersion))return void console.warn("Unsupported ID3v2 major version: ".concat(r.majorVersion));var a=(0,m.readBytes)(e,r.size),i=new S(r,a);if(r.flags&o.Footer&&i.removeFooter(),r.flags&o.Unsynchronisation&&3===r.majorVersion&&i.ununsynchronizeAll(),r.flags&o.ExtendedHeader){var s=i.readU32();3===r.majorVersion?i.pos+=s:i.pos+=s-4}for(;i.pos<=i.bytes.length-i.frameHeaderSize();){var c=i.readId3V2Frame();if(!c)break;var u=i.pos,l=i.pos+c.size,d=!1,f=!1,h=!1;if(3===r.majorVersion?(d=!!(64&c.flags),f=!!(128&c.flags)):4===r.majorVersion&&(d=!!(4&c.flags),f=!!(8&c.flags),h=!!(2&c.flags)||!!(r.flags&o.Unsynchronisation)),d){console.warn("Skipping encrypted ID3v2 frame ".concat(c.id)),i.pos=l;continue}if(f){console.warn("Skipping compressed ID3v2 frame ".concat(c.id)),i.pos=l;continue}switch(h&&i.ununsynchronizeRegion(i.pos,l),null!=n.raw||(n.raw={}),"T"===c.id[0]?null!=(p=n.raw)[g=c.id]||(p[g]=i.readId3V2EncodingAndText(l)):null!=(k=n.raw)[_=c.id]||(k[_]=i.readBytes(c.size)),i.pos=u,c.id){case"TIT2":case"TT2":null!=n.title||(n.title=i.readId3V2EncodingAndText(l));break;case"TIT3":case"TT3":null!=n.description||(n.description=i.readId3V2EncodingAndText(l));break;case"TPE1":case"TP1":null!=n.artist||(n.artist=i.readId3V2EncodingAndText(l));break;case"TALB":case"TAL":null!=n.album||(n.album=i.readId3V2EncodingAndText(l));break;case"TPE2":case"TP2":null!=n.albumArtist||(n.albumArtist=i.readId3V2EncodingAndText(l));break;case"TRCK":case"TRK":var p,g,k,_,y=i.readId3V2EncodingAndText(l).split("/"),w=Number.parseInt(y[0],10),T=y[1]&&Number.parseInt(y[1],10);Number.isInteger(w)&&w>0&&(null!=n.trackNumber||(n.trackNumber=w)),T&&Number.isInteger(T)&&T>0&&(null!=n.tracksTotal||(n.tracksTotal=T));break;case"TPOS":case"TPA":var x=i.readId3V2EncodingAndText(l).split("/"),I=Number.parseInt(x[0],10),E=x[1]&&Number.parseInt(x[1],10);Number.isInteger(I)&&I>0&&(null!=n.discNumber||(n.discNumber=I)),E&&Number.isInteger(E)&&E>0&&(null!=n.discsTotal||(n.discsTotal=E));break;case"TCON":case"TCO":var j=i.readId3V2EncodingAndText(l),P=/^\((\d+)\)/.exec(j);if(P){var C=Number.parseInt(P[1]);if(void 0!==b[C]){null!=n.genre||(n.genre=b[C]);break}}if(P=/^\d+$/.exec(j)){var A=Number.parseInt(P[0]);if(void 0!==b[A]){null!=n.genre||(n.genre=b[A]);break}}null!=n.genre||(n.genre=j);break;case"TDRC":case"TDAT":var B=new Date(i.readId3V2EncodingAndText(l));Number.isNaN(B.getTime())||null!=n.date||(n.date=B);break;case"TYER":case"TYE":var M=Number.parseInt(i.readId3V2EncodingAndText(l),10);Number.isInteger(M)&&(null!=n.date||(n.date=new Date(M,0,1)));break;case"USLT":case"ULT":var D=i.readU8();i.pos+=3,i.readId3V2Text(D,l),null!=n.lyrics||(n.lyrics=i.readId3V2Text(D,l));break;case"COMM":case"COM":var F=i.readU8();i.pos+=3,i.readId3V2Text(F,l),null!=n.comment||(n.comment=i.readId3V2Text(F,l));break;case"APIC":case"PIC":var R=i.readId3V2TextEncoding(),U=void 0;if(2===r.majorVersion){var O=i.readAscii(3);U="PNG"===O?"image/png":"JPG"===O?"image/jpeg":"image/*"}else U=i.readId3V2Text(R,l);var L=i.readU8(),N=i.readId3V2Text(R,l).trimEnd(),z=l-i.pos;if(z>=0){var V=i.readBytes(z);n.images||(n.images=[]),n.images.push({data:V,mimeType:U,kind:3===L?"coverFront":4===L?"coverBack":"unknown",description:N})}break;default:i.pos+=c.size}i.pos=l}},S=function(){"use strict";function e(r,n){(0,l._)(this,e),this.header=r,this.bytes=n,this.pos=0,this.view=new DataView(n.buffer,n.byteOffset,n.byteLength)}return(0,d._)(e,[{key:"frameHeaderSize",value:function(){return 2===this.header.majorVersion?6:10}},{key:"ununsynchronizeAll",value:function(){for(var e=[],r=0;r<this.bytes.length;r++){var n=this.bytes[r];e.push(n),255===n&&r!==this.bytes.length-1&&0===this.bytes[r]&&r++}this.bytes=new Uint8Array(e),this.view=new DataView(this.bytes.buffer)}},{key:"ununsynchronizeRegion",value:function(e,r){for(var n=[],a=e;a<r;a++){var i=this.bytes[a];n.push(i),255===i&&a!==r-1&&0===this.bytes[a+1]&&a++}var s=this.bytes.subarray(0,e),o=this.bytes.subarray(r);this.bytes=new Uint8Array(s.length+n.length+o.length),this.bytes.set(s,0),this.bytes.set(n,s.length),this.bytes.set(o,s.length+n.length),this.view=new DataView(this.bytes.buffer)}},{key:"removeFooter",value:function(){this.bytes=this.bytes.subarray(0,this.bytes.length-g),this.view=new DataView(this.bytes.buffer)}},{key:"readBytes",value:function(e){var r=this.bytes.subarray(this.pos,this.pos+e);return this.pos+=e,r}},{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),r=this.view.getUint8(this.pos+1);return this.pos+=3,256*e+r}},{key:"readU32",value:function(){var e=this.view.getUint32(this.pos,!1);return this.pos+=4,e}},{key:"readAscii",value:function(e){for(var r="",n=0;n<e;n++)r+=String.fromCharCode(this.view.getUint8(this.pos+n));return this.pos+=e,r}},{key:"readId3V2Frame",value:function(){var e=this;if(2===this.header.majorVersion){var r=this.readAscii(3);return"\0\0\0"===r?null:{id:r,size:this.readU24(),flags:0}}var n=this.readAscii(4);if("\0\0\0\0"===n)return null;var a=this.readU32(),i=4===this.header.majorVersion?(0,f.decodeSynchsafe)(a):a,s=this.readU16(),o=this.pos,c=function(r){var n=e.pos+r;if(n>e.bytes.length)return!1;if(n<=e.bytes.length-e.frameHeaderSize()){e.pos+=r;var a=e.readAscii(4);if("\0\0\0\0"!==a&&!/[0-9A-Z]{4}/.test(a))return!1}return!0};if(!c(i)){var u=4===this.header.majorVersion?a:(0,f.decodeSynchsafe)(a);c(u)&&(i=u)}return this.pos=o,{id:n,size:i,flags:s}}},{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,r){var n=this.pos,a=this.readBytes(r-this.pos);switch(e){case c.ISO_8859_1:for(var i="",s=0;s<a.length;s++){var o=a[s];if(0===o){this.pos=n+s+1;break}i+=String.fromCharCode(o)}return i;case c.UTF_16_WITH_BOM:if(255===a[0]&&254===a[1]){var u=new TextDecoder("utf-16le"),l=(0,h.coalesceIndex)(a.findIndex(function(e,r){return 0===e&&0===a[r+1]&&r%2==0}),a.length);return this.pos=n+Math.min(l+2,a.length),u.decode(a.subarray(2,l))}if(254===a[0]&&255===a[1]){var d=new TextDecoder("utf-16be"),f=(0,h.coalesceIndex)(a.findIndex(function(e,r){return 0===e&&0===a[r+1]&&r%2==0}),a.length);return this.pos=n+Math.min(f+2,a.length),d.decode(a.subarray(2,f))}var m=(0,h.coalesceIndex)(a.findIndex(function(e){return 0===e}),a.length);return this.pos=n+Math.min(m+1,a.length),h.textDecoder.decode(a.subarray(0,m));case c.UTF_16_BE_NO_BOM:var p=new TextDecoder("utf-16be"),g=(0,h.coalesceIndex)(a.findIndex(function(e,r){return 0===e&&0===a[r+1]&&r%2==0}),a.length);return this.pos=n+Math.min(g+2,a.length),p.decode(a.subarray(0,g));case c.UTF_8:var b=(0,h.coalesceIndex)(a.findIndex(function(e){return 0===e}),a.length);return this.pos=n+Math.min(b+1,a.length),h.textDecoder.decode(a.subarray(0,b))}}},{key:"readId3V2EncodingAndText",value:function(e){if(this.pos>=e)return"";var r=this.readId3V2TextEncoding();return this.readId3V2Text(r,e)}}]),e}(),T=function(){"use strict";function e(r){(0,l._)(this,e),this.helper=new Uint8Array(8),this.helperView=(0,h.toDataView)(this.helper),this.writer=r}return(0,d._)(e,[{key:"writeId3V2Tag",value:function(e){var r=this.writer.getPos();this.writeAscii("ID3"),this.writeU8(4),this.writeU8(0),this.writeU8(0),this.writeSynchsafeU32(0);var n=this.writer.getPos(),a=new Set,i=!0,s=!1,o=void 0;try{for(var u,l=(0,h.keyValueIterator)(e)[Symbol.iterator]();!(i=(u=l.next()).done);i=!0){var d=u.value,f=d.key,m=d.value;switch(f){case"title":this.writeId3V2TextFrame("TIT2",m),a.add("TIT2");break;case"description":this.writeId3V2TextFrame("TIT3",m),a.add("TIT3");break;case"artist":this.writeId3V2TextFrame("TPE1",m),a.add("TPE1");break;case"album":this.writeId3V2TextFrame("TALB",m),a.add("TALB");break;case"albumArtist":this.writeId3V2TextFrame("TPE2",m),a.add("TPE2");break;case"trackNumber":var p=void 0!==e.tracksTotal?"".concat(m,"/").concat(e.tracksTotal):m.toString();this.writeId3V2TextFrame("TRCK",p),a.add("TRCK");break;case"discNumber":var g=void 0!==e.discsTotal?"".concat(m,"/").concat(e.discsTotal):m.toString();this.writeId3V2TextFrame("TPOS",g),a.add("TPOS");break;case"genre":this.writeId3V2TextFrame("TCON",m),a.add("TCON");break;case"date":this.writeId3V2TextFrame("TDRC",m.toISOString().slice(0,10)),a.add("TDRC");break;case"lyrics":this.writeId3V2LyricsFrame(m),a.add("USLT");break;case"comment":this.writeId3V2CommentFrame(m),a.add("COMM");break;case"images":var b={coverFront:3,coverBack:4,unknown:0},k=!0,_=!1,y=void 0;try{for(var w,S=m[Symbol.iterator]();!(k=(w=S.next()).done);k=!0){var T,x,I=w.value,E=null!=(T=b[I.kind])?T:0,j=null!=(x=I.description)?x:"";this.writeId3V2ApicFrame(I.mimeType,E,j,I.data)}}catch(e){_=!0,y=e}finally{try{k||null==S.return||S.return()}finally{if(_)throw y}}break;case"tracksTotal":case"discsTotal":case"raw":break;default:(0,h.assertNever)(f)}}}catch(e){s=!0,o=e}finally{try{i||null==l.return||l.return()}finally{if(s)throw o}}if(e.raw)for(var P in e.raw){var C=e.raw[P];if(!(null==C||4!==P.length||a.has(P))){var A=void 0;if("string"==typeof C){var B=h.textEncoder.encode(C);(A=new Uint8Array(B.byteLength+2))[0]=c.UTF_8,A.set(B,1)}else{if(!(C instanceof Uint8Array))continue;A=C}this.writeAscii(P),this.writeSynchsafeU32(A.byteLength),this.writeU16(0),this.writer.write(A)}}var M=this.writer.getPos(),D=M-n;return this.writer.seek(r+6),this.writeSynchsafeU32(D),this.writer.seek(M),D+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 r=0;r<e.length;r++)this.helper[r]=e.charCodeAt(r);this.writer.write(this.helper.subarray(0,e.length))}},{key:"writeSynchsafeU32",value:function(e){this.writeU32((0,f.encodeSynchsafe)(e))}},{key:"writeIsoString",value:function(e){for(var r=new Uint8Array(e.length+1),n=0;n<e.length;n++)r[n]=e.charCodeAt(n);r[e.length]=0,this.writer.write(r)}},{key:"writeUtf8String",value:function(e){var r=h.textEncoder.encode(e);this.writer.write(r),this.writeU8(0)}},{key:"writeId3V2TextFrame",value:function(e,r){var n=(0,h.isIso88591Compatible)(r),a=n?r.length:h.textEncoder.encode(r).byteLength;this.writeAscii(e),this.writeSynchsafeU32(1+a+1),this.writeU16(0),this.writeU8(n?c.ISO_8859_1:c.UTF_8),n?this.writeIsoString(r):this.writeUtf8String(r)}},{key:"writeId3V2LyricsFrame",value:function(e){var r=(0,h.isIso88591Compatible)(e),n=5+e.length+1;this.writeAscii("USLT"),this.writeSynchsafeU32(n),this.writeU16(0),this.writeU8(r?c.ISO_8859_1:c.UTF_8),this.writeAscii("und"),r?(this.writeIsoString(""),this.writeIsoString(e)):(this.writeUtf8String(""),this.writeUtf8String(e))}},{key:"writeId3V2CommentFrame",value:function(e){var r=(0,h.isIso88591Compatible)(e),n=r?e.length:h.textEncoder.encode(e).byteLength;this.writeAscii("COMM"),this.writeSynchsafeU32(5+n+1),this.writeU16(0),this.writeU8(r?c.ISO_8859_1:c.UTF_8),this.writeU8(117),this.writeU8(110),this.writeU8(100),r?(this.writeIsoString(""),this.writeIsoString(e)):(this.writeUtf8String(""),this.writeUtf8String(e))}},{key:"writeId3V2ApicFrame",value:function(e,r,n,a){var i=(0,h.isIso88591Compatible)(e)&&(0,h.isIso88591Compatible)(n),s=i?n.length:h.textEncoder.encode(n).byteLength,o=1+e.length+1+1+s+1+a.byteLength;this.writeAscii("APIC"),this.writeSynchsafeU32(o),this.writeU16(0),this.writeU8(i?c.ISO_8859_1:c.UTF_8),i?this.writeIsoString(e):this.writeUtf8String(e),this.writeU8(r),i?this.writeIsoString(n):this.writeUtf8String(n),this.writer.write(a)}}]),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,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"readNextFrameHeader",function(){return l});var s=e("@swc/helpers/cjs/_async_to_generator.cjs"),o=e("@swc/helpers/cjs/_ts_generator.cjs"),c=e("../../shared/mp3-misc.js"),u=e("../reader.js"),l=function(e,r,n){return(0,s._)(function(){var a,i,s,l;return(0,o._)(this,function(o){switch(o.label){case 0:a=r,o.label=1;case 1:if(!(null===n||a<n))return[3,4];if(!((i=e.requestSlice(a,c.FRAME_HEADER_SIZE))instanceof Promise))return[3,3];return[4,i];case 2:i=o.sent(),o.label=3;case 3:if(!i)return[3,4];if(s=(0,u.readU32Be)(i),(l=(0,c.readFrameHeader)(s,null!==e.fileSize?e.fileSize-a:null)).header)return[2,{header:l.header,startPos:a}];return a+=l.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,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"OggDemuxer",function(){return x});var 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/_object_spread.cjs"),f=e("@swc/helpers/cjs/_to_consumable_array.cjs"),h=e("@swc/helpers/cjs/_ts_generator.cjs"),m=e("../codec.js"),p=e("../codec-data.js"),g=e("../demuxer.js"),b=e("../input-track.js"),k=e("../metadata.js"),_=e("../misc.js"),y=e("../packet.js"),w=e("../reader.js"),S=e("./ogg-misc.js"),T=e("./ogg-reader.js"),x=function(e){"use strict";function r(e){var n;return(0,c._)(this,r),(n=(0,o._)(this,r,[e])).metadataPromise=null,n.bitstreams=[],n.tracks=[],n.metadataTags={},n.reader=e._reader,n}return(0,l._)(r,e),(0,u._)(r,[{key:"readMetadata",value:function(){return(0,s._)(function(){var e,r;return(0,h._)(this,function(n){return e=this,[2,null!=(r=this.metadataPromise)?r:this.metadataPromise=(0,s._)(function(){var e,r,n,a,i,s,o,c,u,l,d;return(0,h._)(this,function(f){switch(f.label){case 0:e=0,f.label=1;case 1:if(!((r=this.reader.requestSliceRange(e,T.MIN_PAGE_HEADER_SIZE,T.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,3];return[4,r];case 2:r=f.sent(),f.label=3;case 3:if(!r||!(n=(0,T.readPageHeader)(r))||!(2&n.headerType))return[3,4];return this.bitstreams.push({serialNumber:n.serialNumber,bosPage:n,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=n.headerStartPos+n.totalSize,[3,1];case 4:a=!0,i=!1,s=void 0,f.label=5;case 5:f.trys.push([5,14,15,16]),o=this.bitstreams[Symbol.iterator](),f.label=6;case 6:if(a=(c=o.next()).done)return[3,13];return u=c.value,[4,this.readPacket(u.bosPage,0)];case 7:if(!(l=f.sent()))return[3,12];if(!(l.data.byteLength>=7&&1===l.data[0]&&118===l.data[1]&&111===l.data[2]&&114===l.data[3]&&98===l.data[4]&&105===l.data[5]&&115===l.data[6]))return[3,9];return[4,this.readVorbisMetadata(l,u)];case 8:return f.sent(),[3,11];case 9:if(!(l.data.byteLength>=8&&79===l.data[0]&&112===l.data[1]&&117===l.data[2]&&115===l.data[3]&&72===l.data[4]&&101===l.data[5]&&97===l.data[6]&&100===l.data[7]))return[3,11];return[4,this.readOpusMetadata(l,u)];case 10:f.sent(),f.label=11;case 11:null!==u.codecInfo.codec&&this.tracks.push(new(0,b.InputAudioTrack)(this.input,new I(u,this))),f.label=12;case 12:return a=!0,[3,6];case 13:return[3,16];case 14:return d=f.sent(),i=!0,s=d,[3,16];case 15:try{a||null==o.return||o.return()}finally{if(i)throw s}return[7];case 16:return[2]}})}).call(e)]})}).call(this)}},{key:"readVorbisMetadata",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o,c,u,l;return(0,h._)(this,function(d){switch(d.label){case 0:return[4,this.findNextPacketStart(e)];case 1:case 3:if(!(n=d.sent()))return[2];return[4,this.readPacket(n.startPage,n.startSegmentIndex)];case 2:if(!(a=d.sent()))return[2];return[4,this.findNextPacketStart(a)];case 4:if(!(i=d.sent())||3!==a.data[0]||5!==i.data[0])return[2];return s=[],(o=function(e){for(;s.push(Math.min(255,e)),!(e<255);)e-=255})(e.data.length),o(a.data.length),(c=new Uint8Array(1+s.length+e.data.length+a.data.length+i.data.length))[0]=2,c.set(s,1),c.set(e.data,1+s.length),c.set(a.data,1+s.length+e.data.length),c.set(i.data,1+s.length+e.data.length+a.data.length),r.codecInfo.codec="vorbis",r.description=c,r.lastMetadataPacket=i,r.numberOfChannels=(u=(0,_.toDataView)(e.data)).getUint8(11),r.sampleRate=u.getUint32(12,!0),l=u.getUint8(28),r.codecInfo.vorbisInfo={blocksizes:[1<<(15&l),1<<(l>>4)],modeBlockflags:(0,p.parseModesFromVorbisSetupPacket)(i.data).modeBlockflags},(0,p.readVorbisComments)(a.data.subarray(7),this.metadataTags),[2]}})}).call(this)}},{key:"readOpusMetadata",value:function(e,r){return(0,s._)(function(){var n,a,i;return(0,h._)(this,function(s){switch(s.label){case 0:return[4,this.findNextPacketStart(e)];case 1:if(!(n=s.sent()))return[2];return[4,this.readPacket(n.startPage,n.startSegmentIndex)];case 2:if(!(a=s.sent()))return[2];return r.codecInfo.codec="opus",r.description=e.data,r.lastMetadataPacket=a,r.numberOfChannels=(i=(0,p.parseOpusIdentificationHeader)(e.data)).outputChannelCount,r.sampleRate=m.OPUS_SAMPLE_RATE,r.codecInfo.opusInfo={preSkip:i.preSkip},(0,p.readVorbisComments)(a.data.subarray(8),this.metadataTags),[2]}})}).call(this)}},{key:"readPacket",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o,c,u,l,d,f,m,p,g,b,k,y;return(0,h._)(this,function(h){switch(h.label){case 0:for((0,_.assert)(r<e.lacingValues.length),n=0,a=0;a<r;a++)n+=e.lacingValues[a];i=e,s=n,o=r,c=[],h.label=1;case 1:if(!((u=this.reader.requestSlice(i.dataStartPos,i.dataSize))instanceof Promise))return[3,3];return[4,u];case 2:u=h.sent(),h.label=3;case 3:for((0,_.assert)(u),l=(0,w.readBytes)(u,i.dataSize);;){if(o===i.lacingValues.length){c.push(l.subarray(n,s));break}if(d=i.lacingValues[o],s+=d,d<255)return c.push(l.subarray(n,s)),[3,8];o++}f=i.headerStartPos+i.totalSize,h.label=4;case 4:if(!((m=this.reader.requestSliceRange(f,T.MIN_PAGE_HEADER_SIZE,T.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,6];return[4,m];case 5:m=h.sent(),h.label=6;case 6:if(!m||!(p=(0,T.readPageHeader)(m)))return[2,null];if((i=p).serialNumber===e.serialNumber)return[3,7];return f=i.headerStartPos+i.totalSize,[3,4];case 7:return n=0,s=0,o=0,[3,1];case 8:for(k=0,g=new Uint8Array(c.reduce(function(e,r){return e+r.length},0)),b=0;k<c.length;k++)y=c[k],g.set(y,b),b+=y.length;return[2,{data:g,endPage:i,endSegmentIndex:o}]}})}).call(this)}},{key:"findNextPacketStart",value:function(e){return(0,s._)(function(){var r,n,a;return(0,h._)(this,function(i){switch(i.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];r=e.endPage.headerStartPos+e.endPage.totalSize,i.label=1;case 1:if(!((n=this.reader.requestSliceRange(r,T.MIN_PAGE_HEADER_SIZE,T.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,3];return[4,n];case 2:n=i.sent(),i.label=3;case 3:if(!n||!(a=(0,T.readPageHeader)(n)))return[2,null];if(a.serialNumber===e.endPage.serialNumber)return[2,{startPage:a,startSegmentIndex:0}];return r=a.headerStartPos+a.totalSize,[3,1];case 4:return[2]}})}).call(this)}},{key:"getMimeType",value:function(){return(0,s._)(function(){var e;return(0,h._)(this,function(r){switch(r.label){case 0:return[4,this.readMetadata()];case 1:return r.sent(),[4,Promise.all(this.tracks.map(function(e){return e.getCodecParameterString()}))];case 2:return e=r.sent(),[2,(0,S.buildOggMimeType)({codecStrings:e.filter(Boolean)})]}})}).call(this)}},{key:"getTracks",value:function(){return(0,s._)(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:"computeDuration",value:function(){return(0,s._)(function(){var e,r;return(0,h._)(this,function(n){switch(n.label){case 0:return[4,this.getTracks()];case 1:return[4,Promise.all(n.sent().map(function(e){return e.computeDuration()}))];case 2:return r=n.sent(),[2,(e=Math).max.apply(e,[0].concat((0,f._)(r)))]}})}).call(this)}},{key:"getMetadataTags",value:function(){return(0,s._)(function(){return(0,h._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),[2,this.metadataTags]}})}).call(this)}}]),r}(g.Demuxer),I=function(){"use strict";function e(r,n){(0,c._)(this,e),this.bitstream=r,this.demuxer=n,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new(0,_.AsyncMutex),this.internalSampleRate="opus"===r.codecInfo.codec?m.OPUS_SAMPLE_RATE:r.sampleRate}return(0,u._)(e,[{key:"getId",value:function(){return this.bitstream.serialNumber}},{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,s._)(function(){var e;return(0,h._)(this,function(r){return(0,_.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 _.UNDETERMINED_LANGUAGE}},{key:"getDisposition",value:function(){return(0,d._)({},k.DEFAULT_TRACK_DISPOSITION)}},{key:"getFirstTimestamp",value:function(){return(0,s._)(function(){return(0,h._)(this,function(e){return[2,0]})})()}},{key:"computeDuration",value:function(){return(0,s._)(function(){var e,r,n;return(0,h._)(this,function(a){switch(a.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(r=null==(e=a.sent())?void 0:e.timestamp)?r:0)+(null!=(n=null==e?void 0:e.duration)?n:0)]}})}).call(this)}},{key:"granulePositionToTimestampInSamples",value:function(e){return"opus"===this.bitstream.codecInfo.codec?((0,_.assert)(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}},{key:"createEncodedPacketFromOggPacket",value:function(e,r,n){if(!e)return null;var a=(0,S.extractSampleMetadata)(e.data,this.bitstream.codecInfo,r.vorbisLastBlocksize),i=a.durationInSamples,s=a.vorbisBlockSize,o=new(0,y.EncodedPacket)(n.metadataOnly?y.PLACEHOLDER_DATA:e.data,"key",Math.max(0,r.timestampInSamples)/this.internalSampleRate,i/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(o,{packet:e,timestampInSamples:r.timestampInSamples,durationInSamples:i,vorbisLastBlockSize:r.vorbisLastBlocksize,vorbisBlockSize:s}),o}},{key:"getFirstPacket",value:function(e){return(0,s._)(function(){var r,n,a;return(0,h._)(this,function(i){switch(i.label){case 0:return(0,_.assert)(this.bitstream.lastMetadataPacket),[4,this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket)];case 1:if(!(r=i.sent()))return[2,null];return n=0,"opus"===this.bitstream.codecInfo.codec&&((0,_.assert)(this.bitstream.codecInfo.opusInfo),n-=this.bitstream.codecInfo.opusInfo.preSkip),[4,this.demuxer.readPacket(r.startPage,r.startSegmentIndex)];case 2:return a=i.sent(),[2,this.createEncodedPacketFromOggPacket(a,{timestampInSamples:n,vorbisLastBlocksize:null},e)]}})}).call(this)}},{key:"getNextPacket",value:function(e,r){return(0,s._)(function(){var n,a,i,s;return(0,h._)(this,function(o){switch(o.label){case 0:if(!(n=this.encodedPacketToMetadata.get(e)))throw Error("Packet was not created from this track.");return[4,this.demuxer.findNextPacketStart(n.packet)];case 1:if(!(a=o.sent()))return[2,null];return i=n.timestampInSamples+n.durationInSamples,[4,this.demuxer.readPacket(a.startPage,a.startSegmentIndex)];case 2:return s=o.sent(),[2,this.createEncodedPacketFromOggPacket(s,{timestampInSamples:i,vorbisLastBlocksize:n.vorbisBlockSize},r)]}})}).call(this)}},{key:"getPacket",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o,c,u,l,d,f,m,p,g,b,k,x,I,P,C,A,B,M,D,F,R,U,O,L,N,z,V,H,G,q,W,K,X,Z,Q,Y,J,$,ee,et,er;return(0,h._)(this,function(h){switch(h.label){case 0:if(null===this.demuxer.reader.fileSize)return[2,this.getPacketSequential(e,r)];if(0===(n=(0,_.roundIfAlmostInteger)(e*this.internalSampleRate)))return[2,this.getFirstPacket(r)];if(n<0)return[2,null];return(0,_.assert)(this.bitstream.lastMetadataPacket),[4,this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket)];case 1:if(!(a=h.sent()))return[2,null];i=a.startPage,s=this.demuxer.reader.fileSize,o=[i],h.label=2;case 2:if(!(i.headerStartPos+i.totalSize<s))return[3,13];u=c=Math.floor((i.headerStartPos+s)/2),h.label=3;case 3:if(l=Math.min(u+T.MAX_PAGE_SIZE,s-T.MIN_PAGE_HEADER_SIZE),!((d=this.demuxer.reader.requestSlice(u,l-u))instanceof Promise))return[3,5];return[4,d];case 4:d=h.sent(),h.label=5;case 5:if((0,_.assert)(d),!(0,T.findNextPageHeader)(d,l))return s=c+T.MIN_PAGE_HEADER_SIZE,[3,2];if(!((f=this.demuxer.reader.requestSliceRange(d.filePos,T.MIN_PAGE_HEADER_SIZE,T.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,7];return[4,f];case 6:f=h.sent(),h.label=7;case 7:if((0,_.assert)(f),m=(0,T.readPageHeader)(f),(0,_.assert)(m),p=!1,m.serialNumber!==this.bitstream.serialNumber)return[3,8];return p=!0,[3,11];case 8:if(!((g=this.demuxer.reader.requestSlice(m.headerStartPos,m.totalSize))instanceof Promise))return[3,10];return[4,g];case 9:g=h.sent(),h.label=10;case 10:(0,_.assert)(g),b=(0,w.readBytes)(g,m.totalSize),p=(0,S.computeOggPageCrc)(b)===m.checksum,h.label=11;case 11:if(!p)return u=m.headerStartPos+4,[3,3];if(p&&m.serialNumber!==this.bitstream.serialNumber||-1===m.granulePosition)return u=m.headerStartPos+m.totalSize,[3,3];return this.granulePositionToTimestampInSamples(m.granulePosition)>n?s=m.headerStartPos:(i=m,o.push(m)),[3,2];case 12:return[3,2];case 13:k=a.startPage,x=!0,I=!1,P=void 0;try{for(C=o[Symbol.iterator]();!(x=(A=C.next()).done)&&(B=A.value).granulePosition!==i.granulePosition;x=!0)(!k||B.headerStartPos>k.headerStartPos)&&(k=B)}catch(e){I=!0,P=e}finally{try{x||null==C.return||C.return()}finally{if(I)throw P}}D=[M=k],h.label=14;case 14:if(M.serialNumber===this.bitstream.serialNumber&&M.granulePosition===i.granulePosition)return[3,17];if(F=M.headerStartPos+M.totalSize,!((R=this.demuxer.reader.requestSliceRange(F,T.MIN_PAGE_HEADER_SIZE,T.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,16];return[4,R];case 15:R=h.sent(),h.label=16;case 16:return(0,_.assert)(R),U=(0,T.readPageHeader)(R),(0,_.assert)(U),(M=U).serialNumber===this.bitstream.serialNumber&&D.push(M),[3,14];case 17:if((0,_.assert)(-1!==M.granulePosition),O=null,z=M,V=0,M.headerStartPos!==a.startPage.headerStartPos)return[3,18];return L=this.granulePositionToTimestampInSamples(0),N=!0,O=0,[3,20];case 18:for(L=0,N=!1,H=M.lacingValues.length-1;H>=0;H--)if(M.lacingValues[H]<255){O=H+1;break}if(null===O)throw Error("Invalid page with granule position: no packets end on this page.");return V=O-1,G={data:y.PLACEHOLDER_DATA,endPage:z,endSegmentIndex:V},[4,this.demuxer.findNextPacketStart(G)];case 19:if(h.sent())q=j(D,M,O),(0,_.assert)(q),(W=E(D,q.page,q.segmentIndex))&&(M=W.page,O=W.segmentIndex);else for(;(K=j(D,M,O))&&(X=E(D,K.page,K.segmentIndex));)if(M=X.page,O=X.segmentIndex,K.page.headerStartPos!==z.headerStartPos){z=K.page,V=K.segmentIndex;break}h.label=20;case 20:Z=null,Q=null,h.label=21;case 21:if(null===M)return[3,24];return(0,_.assert)(null!==O),[4,this.demuxer.readPacket(M,O)];case 22:if(!(Y=h.sent())||!(M.headerStartPos===a.startPage.headerStartPos&&O<a.startSegmentIndex)&&($=this.createEncodedPacketFromOggPacket(Y,{timestampInSamples:L,vorbisLastBlocksize:null!=(J=null==Q?void 0:Q.vorbisBlockSize)?J:null},r),(0,_.assert)($),ee=this.encodedPacketToMetadata.get($),(0,_.assert)(ee),N||Y.endPage.headerStartPos!==z.headerStartPos||Y.endSegmentIndex!==V?L+=ee.durationInSamples:(L=this.granulePositionToTimestampInSamples(M.granulePosition),N=!0,$=this.createEncodedPacketFromOggPacket(Y,{timestampInSamples:L-ee.durationInSamples,vorbisLastBlocksize:null!=(et=null==Q?void 0:Q.vorbisBlockSize)?et:null},r),(0,_.assert)($),ee=this.encodedPacketToMetadata.get($),(0,_.assert)(ee)),Z=$,Q=ee,N&&(Math.max(L,0)>n||Math.max(ee.timestampInSamples,0)===n)))return[3,24];return[4,this.demuxer.findNextPacketStart(Y)];case 23:if(!(er=h.sent()))return[3,24];return M=er.startPage,O=er.startSegmentIndex,[3,21];case 24:return[2,Z]}})}).call(this)}},{key:"getPacketSequential",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o,c,u,l;return(0,h._)(this,function(d){switch(d.label){case 0:return[4,this.sequentialScanMutex.acquire()];case 1:n=d.sent(),d.label=2;case 2:if(d.trys.push([2,,9,10]),e=(a=(0,_.roundIfAlmostInteger)(e*this.internalSampleRate))/this.internalSampleRate,-1===(i=(0,_.binarySearchLessOrEqual)(this.sequentialScanCache,a,function(e){return e.timestampInSamples})))return[3,3];return o=this.sequentialScanCache[i],s=this.createEncodedPacketFromOggPacket(o.packet,{timestampInSamples:o.timestampInSamples,vorbisLastBlocksize:o.vorbisLastBlockSize},r),[3,5];case 3:return[4,this.getFirstPacket(r)];case 4:s=d.sent(),d.label=5;case 5:c=0,d.label=6;case 6:if(!(s&&s.timestamp<e))return[3,8];return[4,this.getNextPacket(s,r)];case 7:if(!(u=d.sent())||u.timestamp>e)return[3,8];return s=u,100==++c&&(c=0,l=this.encodedPacketToMetadata.get(s),(0,_.assert)(l),this.sequentialScanCache.length>0&&(0,_.assert)((0,_.last)(this.sequentialScanCache).timestampInSamples<=l.timestampInSamples),this.sequentialScanCache.push(l)),[3,6];case 8:return[2,s];case 9:return n(),[7];case 10:return[2]}})}).call(this)}},{key:"getKeyPacket",value:function(e,r){return this.getPacket(e,r)}},{key:"getNextKeyPacket",value:function(e,r){return this.getNextPacket(e,r)}}]),e}(),E=function(e,r,n){var a=r,i=n;e:for(;;){for(i--;i>=0;i--)if(a.lacingValues[i]<255){i++;break e}if((0,_.assert)(-1===i),!(1&a.headerType)){i=0;break}var s=(0,_.findLast)(e,function(e){return e.headerStartPos<a.headerStartPos});if(!s)return null;i=(a=s).lacingValues.length}if((0,_.assert)(-1!==i),i===a.lacingValues.length){var o=e[e.indexOf(a)+1];(0,_.assert)(o),a=o,i=0}return{page:a,segmentIndex:i}},j=function(e,r,n){if(n>0)return{page:r,segmentIndex:n-1};var a=(0,_.findLast)(e,function(e){return e.headerStartPos<r.headerStartPos});return a?{page:a,segmentIndex:a.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,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"OGGS",function(){return u}),i.export(n,"computeOggPageCrc",function(){return m}),i.export(n,"extractSampleMetadata",function(){return p}),i.export(n,"buildOggMimeType",function(){return g});for(var s=e("@swc/helpers/cjs/_to_consumable_array.cjs"),o=e("../codec-data.js"),c=e("../misc.js"),u=0x5367674f,l=new Uint32Array(256),d=0;d<256;d++){for(var f=d<<24,h=0;h<8;h++)f=0x80000000&f?f<<1^0x4c11db7:f<<1;l[d]=f>>>0}var m=function(e){var r=(0,c.toDataView)(e),n=r.getUint32(22,!0);r.setUint32(22,0,!0);for(var a=0,i=0;i<e.length;i++)a=(a<<8^l[a>>>24^e[i]])>>>0;return r.setUint32(22,n,!0),a},p=function(e,r,n){var a=0,i=null;if(e.length>0)if("vorbis"===r.codec){(0,c.assert)(r.vorbisInfo);var s=r.vorbisInfo.modeBlockflags.length,u=(1<<(0,c.ilog)(s-1))-1<<1,l=(e[0]&u)>>1;if(l>=r.vorbisInfo.modeBlockflags.length)throw Error("Invalid mode number.");var d=n,f=r.vorbisInfo.modeBlockflags[l];if(i=r.vorbisInfo.blocksizes[f],1===f){var h=e[0]&(1|u)+1?1:0;d=r.vorbisInfo.blocksizes[h]}a=null!==d?d+i>>2:0}else"opus"===r.codec&&(a=(0,o.parseOpusTocByte)(e).durationInSamples);return{durationInSamples:a,vorbisBlockSize:i}},g=function(e){var r="audio/ogg";if(e.codecStrings){var n=(0,s._)(new Set(e.codecStrings));r+='; codecs="'.concat(n.join(", "),'"')}return r}},{"@swc/helpers/cjs/_to_consumable_array.cjs":"i81N6","../codec-data.js":"kWTYV","../misc.js":"j7iGm","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],fY5up:[function(e,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"MIN_PAGE_HEADER_SIZE",function(){return c}),i.export(n,"MAX_PAGE_HEADER_SIZE",function(){return u}),i.export(n,"MAX_PAGE_SIZE",function(){return l}),i.export(n,"readPageHeader",function(){return d}),i.export(n,"findNextPageHeader",function(){return f});var s=e("../reader.js"),o=e("./ogg-misc.js"),c=27,u=282,l=65307,d=function(e){var r=e.filePos;if((0,s.readU32Le)(e)!==o.OGGS)return null;e.skip(1);for(var n=(0,s.readU8)(e),a=(0,s.readI64Le)(e),i=(0,s.readU32Le)(e),c=(0,s.readU32Le)(e),u=(0,s.readU32Le)(e),l=(0,s.readU8)(e),d=new Uint8Array(l),f=0;f<l;f++)d[f]=(0,s.readU8)(e);var h=27+l,m=d.reduce(function(e,r){return e+r},0);return{headerStartPos:r,totalSize:h+m,dataStartPos:r+h,dataSize:m,headerType:n,granulePosition:a,serialNumber:i,sequenceNumber:c,checksum:u,lacingValues:d}},f=function(e,r){for(;e.filePos<r-3;){var n=(0,s.readU32Le)(e),a=255&n,i=n>>>8&255,c=n>>>16&255,u=n>>>24&255;if(79===a||79===i||79===c||79===u){if(e.skip(-4),n===o.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,r,n,a){var i,s,o=e("@parcel/transformer-js/src/esmodule-helpers.js");o.defineInteropFlag(n),o.export(n,"WaveFormat",function(){return s}),o.export(n,"WaveDemuxer",function(){return T});var c=e("@swc/helpers/cjs/_async_to_generator.cjs"),u=e("@swc/helpers/cjs/_call_super.cjs"),l=e("@swc/helpers/cjs/_class_call_check.cjs"),d=e("@swc/helpers/cjs/_create_class.cjs"),f=e("@swc/helpers/cjs/_inherits.cjs"),h=e("@swc/helpers/cjs/_object_spread.cjs"),m=e("@swc/helpers/cjs/_to_consumable_array.cjs"),p=e("@swc/helpers/cjs/_ts_generator.cjs"),g=e("../demuxer.js"),b=e("../input-track.js"),k=e("../metadata.js"),_=e("../misc.js"),y=e("../packet.js"),w=e("../reader.js"),S=e("../id3.js");(i=s||(s={}))[i.PCM=1]="PCM",i[i.IEEE_FLOAT=3]="IEEE_FLOAT",i[i.ALAW=6]="ALAW",i[i.MULAW=7]="MULAW",i[i.EXTENSIBLE=65534]="EXTENSIBLE";var T=function(e){"use strict";function r(e){var n;return(0,l._)(this,r),(n=(0,u._)(this,r,[e])).metadataPromise=null,n.dataStart=-1,n.dataSize=-1,n.audioInfo=null,n.tracks=[],n.lastKnownPacketIndex=0,n.metadataTags={},n.reader=e._reader,n}return(0,f._)(r,e),(0,d._)(r,[{key:"readMetadata",value:function(){return(0,c._)(function(){var e,r;return(0,p._)(this,function(n){return e=this,[2,null!=(r=this.metadataPromise)?r:this.metadataPromise=(0,c._)(function(){var e,r,n,a,i,s,o,c,u,l,d,f,h,m,g,k,y,S;return(0,p._)(this,function(p){switch(p.label){case 0:if(!((e=this.reader.requestSlice(0,12))instanceof Promise))return[3,2];return[4,e];case 1:e=p.sent(),p.label=2;case 2:if((0,_.assert)(e),n="RIFX"!==(r=(0,w.readAscii)(e,4)),a="RF64"===r,i=(0,w.readU32)(e,n),o=a?this.reader.fileSize:Math.min(i+8,null!=(s=this.reader.fileSize)?s:1/0),"WAVE"!==(0,w.readAscii)(e,4))throw Error("Invalid WAVE file - wrong format");c=0,u=null,l=e.filePos,p.label=3;case 3:if(!(null===o||l<o))return[3,16];if(!((d=this.reader.requestSlice(l,8))instanceof Promise))return[3,5];return[4,d];case 4:d=p.sent(),p.label=5;case 5:if(!d)return[3,16];if(f=(0,w.readAscii)(d,4),h=(0,w.readU32)(d,n),m=d.filePos,a&&0===c&&"ds64"!==f)throw Error('Invalid RF64 file: First chunk must be "ds64".');if("fmt "!==f)return[3,7];return[4,this.parseFmtChunk(m,h,n)];case 6:return p.sent(),[3,15];case 7:if("data"!==f)return[3,8];if(null!=u||(u=h),this.dataStart=d.filePos,this.dataSize=Math.min(u,(null!=o?o:1/0)-this.dataStart),null===this.reader.fileSize)return[3,16];return[3,15];case 8:if("ds64"!==f)return[3,11];if(!((g=this.reader.requestSlice(m,h))instanceof Promise))return[3,10];return[4,g];case 9:g=p.sent(),p.label=10;case 10:if(!g)return[3,16];return k=(0,w.readU64)(g,n),u=(0,w.readU64)(g,n),o=Math.min(k+8,null!=(y=this.reader.fileSize)?y:1/0),[3,15];case 11:if("LIST"!==f)return[3,13];return[4,this.parseListChunk(m,h,n)];case 12:return p.sent(),[3,15];case 13:if("ID3 "!==f&&"id3 "!==f)return[3,15];return[4,this.parseId3Chunk(m,h)];case 14:p.sent(),p.label=15;case 15:return l=m+h+(1&h),c++,[3,3];case 16:if(!this.audioInfo)throw Error('Invalid WAVE file - missing "fmt " chunk');if(-1===this.dataStart)throw Error('Invalid WAVE file - missing "data" chunk');return S=this.audioInfo.blockSizeInBytes,this.dataSize=Math.floor(this.dataSize/S)*S,this.tracks.push(new(0,b.InputAudioTrack)(this.input,new x(this))),[2]}})}).call(e)]})}).call(this)}},{key:"parseFmtChunk",value:function(e,r,n){return(0,c._)(function(){var a,i,o,c,u,l,d;return(0,p._)(this,function(f){switch(f.label){case 0:if(!((a=this.reader.requestSlice(e,r))instanceof Promise))return[3,2];return[4,a];case 1:a=f.sent(),f.label=2;case 2:if(!a)return[2];return i=(0,w.readU16)(a,n),o=(0,w.readU16)(a,n),c=(0,w.readU32)(a,n),a.skip(4),u=(0,w.readU16)(a,n),l=14===r?8:(0,w.readU16)(a,n),r>=18&&357!==i&&Math.min(r-18,(0,w.readU16)(a,n))>=22&&i===s.EXTENSIBLE&&(a.skip(6),i=(d=(0,w.readBytes)(a,16))[0]|d[1]<<8),(i===s.MULAW||i===s.ALAW)&&(l=8),this.audioInfo={format:i,numberOfChannels:o,sampleRate:c,sampleSizeInBytes:Math.ceil(l/8),blockSizeInBytes:u},[2]}})}).call(this)}},{key:"parseListChunk",value:function(e,r,n){return(0,c._)(function(){var a,i,s,o,c,u,l,d,f,h,g,b,k,_,y,S,T,x,I,E,j,P,C,A,B,M;return(0,p._)(this,function(p){switch(p.label){case 0:if(!((a=this.reader.requestSlice(e,r))instanceof Promise))return[3,2];return[4,a];case 1:a=p.sent(),p.label=2;case 2:if(!a||"INFO"!==(i=(0,w.readAscii)(a,4))&&"INF0"!==i)return[2];for(s=a.filePos;s<=e+r-8;){for(h=0,a.filePos=s,u=(0,w.readAscii)(a,4),l=(0,w.readU32)(a,n),d=(0,w.readBytes)(a,l),f=0;h<d.length&&0!==d[h];h++)f++;switch(g=(o=String).fromCharCode.apply(o,(0,m._)(d.subarray(0,f))),null!=(c=this.metadataTags).raw||(c.raw={}),this.metadataTags.raw[u]=g,u){case"INAM":case"TITL":null!=(b=this.metadataTags).title||(b.title=g);break;case"TIT3":null!=(k=this.metadataTags).description||(k.description=g);break;case"IART":null!=(_=this.metadataTags).artist||(_.artist=g);break;case"IPRD":null!=(y=this.metadataTags).album||(y.album=g);break;case"IPRT":case"ITRK":case"TRCK":I=Number.parseInt((x=g.split("/"))[0],10),E=x[1]&&Number.parseInt(x[1],10),Number.isInteger(I)&&I>0&&(null!=(S=this.metadataTags).trackNumber||(S.trackNumber=I)),E&&Number.isInteger(E)&&E>0&&(null!=(T=this.metadataTags).tracksTotal||(T.tracksTotal=E));break;case"ICRD":case"IDIT":Number.isNaN((P=new Date(g)).getTime())||null!=(j=this.metadataTags).date||(j.date=P);break;case"YEAR":Number.isInteger(A=Number.parseInt(g,10))&&A>0&&(null!=(C=this.metadataTags).date||(C.date=new Date(A,0,1)));break;case"IGNR":case"GENR":null!=(B=this.metadataTags).genre||(B.genre=g);break;case"ICMT":case"CMNT":case"COMM":null!=(M=this.metadataTags).comment||(M.comment=g)}s+=8+l+(1&l)}return[2]}})}).call(this)}},{key:"parseId3Chunk",value:function(e,r){return(0,c._)(function(){var n,a,i;return(0,p._)(this,function(s){switch(s.label){case 0:if(!((n=this.reader.requestSlice(e,r))instanceof Promise))return[3,2];return[4,n];case 1:n=s.sent(),s.label=2;case 2:if(!n)return[2];return(a=(0,S.readId3V2Header)(n))&&(i=n.slice(e+10,a.size),(0,S.parseId3V2Tag)(i,a,this.metadataTags)),[2]}})}).call(this)}},{key:"getCodec",value:function(){if((0,_.assert)(this.audioInfo),this.audioInfo.format===s.MULAW)return"ulaw";if(this.audioInfo.format===s.ALAW)return"alaw";if(this.audioInfo.format===s.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";else if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";else if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";else if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}return this.audioInfo.format===s.IEEE_FLOAT&&4===this.audioInfo.sampleSizeInBytes?"pcm-f32":null}},{key:"getMimeType",value:function(){return(0,c._)(function(){return(0,p._)(this,function(e){return[2,"audio/wav"]})})()}},{key:"computeDuration",value:function(){return(0,c._)(function(){var e;return(0,p._)(this,function(r){switch(r.label){case 0:return[4,this.readMetadata()];case 1:return 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r=e.filePos,n=(0,o.readBytes)(e,9),a=new(0,s.Bitstream)(n);if(4095!==a.readBits(12)||(a.skipBits(1),0!==a.readBits(2)))return null;var i=a.readBits(1),c=a.readBits(2)+1,u=a.readBits(4);if(15===u)return null;a.skipBits(1);var l=a.readBits(3);if(0===l)throw Error("ADTS frames with channel configuration 0 are not supported.");a.skipBits(1),a.skipBits(1),a.skipBits(1),a.skipBits(1);var d=a.readBits(13);a.skipBits(11);var f=a.readBits(2)+1;if(1!==f)throw Error("ADTS frames with more than one AAC frame are not supported.");var h=null;return 1===i?e.filePos-=2:h=a.readBits(16),{objectType:c,samplingFrequencyIndex:u,channelConfiguration:l,frameLength:d,numberOfAacFrames:f,crcCheck:h,startPos:r}}},{"../misc.js":"j7iGm","../reader.js":"8KRfO","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],"3t0bF":[function(e,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"AdtsDemuxer",function(){return w});var 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g.UNDETERMINED_LANGUAGE}},{key:"getCodec",value:function(){return"aac"}},{key:"getInternalCodecId",value:function(){return(0,g.assert)(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}},{key:"getNumberOfChannels",value:function(){(0,g.assert)(this.demuxer.firstFrameHeader);var e=h.aacChannelMap[this.demuxer.firstFrameHeader.channelConfiguration];return(0,g.assert)(void 0!==e),e}},{key:"getSampleRate",value:function(){(0,g.assert)(this.demuxer.firstFrameHeader);var e=h.aacFrequencyTable[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return(0,g.assert)(void 0!==e),e}},{key:"getDisposition",value:function(){return(0,d._)({},_.DEFAULT_TRACK_DISPOSITION)}},{key:"getDecoderConfig",value:function(){return(0,s._)(function(){var e,r,n,a,i,s;return(0,f._)(this,function(o){return(0,g.assert)(this.demuxer.firstFrameHeader),e=new 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4:return[2,new(0,b.EncodedPacket)(a,"key",n.timestamp,n.duration,e,n.dataSize)]}})}).call(this)}},{key:"getFirstPacket",value:function(e){return this.getPacketAtIndex(0,e)}},{key:"getNextPacket",value:function(e,r){return(0,s._)(function(){var n,a,i;return(0,f._)(this,function(s){switch(s.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:n=s.sent(),s.label=2;case 2:if(s.trys.push([2,,6,7]),-1===(a=(0,g.binarySearchExact)(this.demuxer.loadedSamples,e.timestamp,function(e){return e.timestamp})))throw Error("Packet was not created from this track.");i=a+1,s.label=3;case 3:if(!(i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded))return[3,5];return[4,this.demuxer.advanceReader()];case 4:return s.sent(),[3,3];case 5:return[2,this.getPacketAtIndex(i,r)];case 6:return n(),[7];case 7:return[2]}})}).call(this)}},{key:"getPacket",value:function(e,r){return(0,s._)(function(){var n,a;return(0,f._)(this,function(i){switch(i.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:n=i.sent(),i.label=2;case 2:i.trys.push([2,,6,7]),i.label=3;case 3:if(-1===(a=(0,g.binarySearchLessOrEqual)(this.demuxer.loadedSamples,e,function(e){return e.timestamp}))&&this.demuxer.loadedSamples.length>0)return[2,null];if(this.demuxer.lastSampleLoaded||a>=0&&a+1<this.demuxer.loadedSamples.length)return[2,this.getPacketAtIndex(a,r)];return[4,this.demuxer.advanceReader()];case 4:return i.sent(),[3,3];case 5:return[3,7];case 6:return n(),[7];case 7:return[2]}})}).call(this)}},{key:"getKeyPacket",value:function(e,r){return this.getPacket(e,r)}},{key:"getNextKeyPacket",value:function(e,r){return 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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/_object_spread.cjs"),f=e("@swc/helpers/cjs/_ts_generator.cjs"),h=e("../codec-data.js"),m=e("../demuxer.js"),p=e("../input-track.js"),g=e("../misc.js"),b=e("../packet.js"),k=e("../reader.js"),_=e("../metadata.js"),y=e("./flac-misc.js"),w=function(e){"use strict";function r(e){var n;return(0,c._)(this,r),(n=(0,o._)(this,r,[e])).loadedSamples=[],n.metadataPromise=null,n.track=null,n.metadataTags={},n.audioInfo=null,n.lastLoadedPos=null,n.blockingBit=null,n.readingMutex=new(0,g.AsyncMutex),n.lastSampleLoaded=!1,n.reader=e._reader,n}return(0,l._)(r,e),(0,u._)(r,[{key:"computeDuration",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),(0,g.assert)(this.track),[2,this.track.computeDuration()]}})}).call(this)}},{key:"getMetadataTags",value:function(){return(0,s._)(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)}},{key:"getTracks",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),(0,g.assert)(this.track),[2,[this.track]]}})}).call(this)}},{key:"getMimeType",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){return[2,"audio/flac"]})})()}},{key:"readMetadata",value:function(){return(0,s._)(function(){var e,r,n;return(0,f._)(this,function(a){return e=this,r=4,[2,null!=(n=this.metadataPromise)?n:this.metadataPromise=(0,s._)(function(){var e,n,a,i,s,o,c,u,l,d,m,b,_,y,w,T,x,I,E,j,P,C,A,B,M;return(0,f._)(this,function(f){switch(f.label){case 0:if(!(null===this.reader.fileSize||r<this.reader.fileSize))return[3,14];if(!((e=this.reader.requestSlice(r,4))instanceof Promise))return[3,2];return[4,e];case 1:e=f.sent(),f.label=2;case 2:if(r+=4,null===e)throw Error("Metadata block at position ".concat(r," is too small! 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