diff --git a/static/utility-apps/whisper-transcriber/app.html b/static/utility-apps/whisper-transcriber/app.html
index 5e34995..924b1b2 100644
--- a/static/utility-apps/whisper-transcriber/app.html
+++ b/static/utility-apps/whisper-transcriber/app.html
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- Whisper Transcriber
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+ Whisper Transcriber
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deleted file mode 100644
index 7153fa5..0000000
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u=Ut.decode(l.subarray(r,r+o));r+=o,o>0&&(n.raw??={},n.raw.vendor??=u);const c=i.getUint32(r,!0);r+=4;for(let d=0;d0&&(n.trackNumber??=w),S&&Number.isInteger(S)&&S>0&&(n.tracksTotal??=S)}break;case"TRACKTOTAL":{const T=Number.parseInt(k,10);Number.isInteger(T)&&T>0&&(n.tracksTotal??=T)}break;case"DISCNUMBER":{const T=k.split("/"),w=Number.parseInt(T[0],10),S=T[1]&&Number.parseInt(T[1],10);Number.isInteger(w)&&w>0&&(n.discNumber??=w),S&&Number.isInteger(S)&&S>0&&(n.discsTotal??=S)}break;case"DISCTOTAL":{const T=Number.parseInt(k,10);Number.isInteger(T)&&T>0&&(n.discsTotal??=T)}break;case"DATE":{const T=new Date(k);Number.isNaN(T.getTime())||(n.date??=T)}break;case"GENRE":n.genre??=k;break;case"METADATA_BLOCK_PICTURE":{const T=a0(k),w=Re(T),S=w.getUint32(0,!1),E=w.getUint32(4,!1),_=String.fromCharCode(...T.subarray(8,8+E)),C=w.getUint32(8+E,!1),B=Ut.decode(T.subarray(12+E,12+E+C)),P=w.getUint32(E+C+28),D=T.subarray(E+C+32,E+C+32+P);n.images??=[],n.images.push({data:D,mimeType:_,kind:S===3?"coverFront":S===4?"coverBack":"unknown",name:void 0,description:B||void 0})}break}}},Lf=[2,1,2,3,3,4,4,5],TS=l=>{if(l.length<7||l[0]!==11||l[1]!==119)return null;const n=new Me(l);n.skipBits(16),n.skipBits(16);const i=n.readBits(2);if(i===3)return null;const r=n.readBits(6),o=n.readBits(5);if(o>8)return null;const u=n.readBits(3),c=n.readBits(3);(c&1)!==0&&c!==1&&n.skipBits(2),(c&4)!==0&&n.skipBits(2),c===2&&n.skipBits(2);const d=n.readBits(1),m=Math.floor(r/2);return{fscod:i,bsid:o,bsmod:u,acmod:c,lfeon:d,bitRateCode:m}},vS=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,288*2,384,418,288*2,448,486,336*2,448,488,336*2,256*2,278*2,384*2,256*2,279*2,384*2,320*2,348*2,480*2,320*2,349*2,480*2,384*2,417*2,576*2,384*2,418*2,576*2,448*2,487*2,672*2,448*2,488*2,672*2,512*2,557*2,768*2,512*2,558*2,768*2,640*2,696*2,960*2,640*2,697*2,960*2,768*2,835*2,1152*2,768*2,836*2,1152*2,896*2,975*2,1344*2,896*2,976*2,1344*2,1024*2,1114*2,1536*2,1024*2,1115*2,1536*2,1152*2,1253*2,1728*2,1152*2,1254*2,1728*2,1280*2,1393*2,1920*2,1280*2,1394*2,1920*2],wS=1536,v0=[1,2,3,6],xS=l=>{if(l.length<6||l[0]!==11||l[1]!==119)return null;const n=new Me(l);n.skipBits(16);const i=n.readBits(2);if(n.skipBits(3),i!==0&&i!==2)return null;const r=n.readBits(11),o=n.readBits(2);let u=0,c;o===3?(u=n.readBits(2),c=3):c=n.readBits(2);const d=n.readBits(3),m=n.readBits(1),p=n.readBits(5);if(p<11||p>16)return null;const y=v0[c];let g;return o<3?g=_o[o]/1e3:g=f0[u]/1e3,{dataRate:Math.round((r+1)*g/(y*16)),substreams:[{fscod:o,fscod2:u,bsid:p,bsmod:0,acmod:d,lfeon:m,numDepSub:0,chanLoc:0}]}},CS=l=>{if(l.length<2)return null;const n=new Me(l),i=n.readBits(13),r=n.readBits(3),o=[];for(let u=0;u<=r&&!(Math.ceil(n.pos/8)+3>l.length);u++){const c=n.readBits(2),d=n.readBits(5);n.skipBits(1),n.skipBits(1);const m=n.readBits(3),p=n.readBits(3),y=n.readBits(1);n.skipBits(3);const g=n.readBits(4);let k=0;g>0?k=n.readBits(9):n.skipBits(1),o.push({fscod:c,fscod2:null,bsid:d,bsmod:m,acmod:p,lfeon:y,numDepSub:g,chanLoc:k})}return o.length===0?null:{dataRate:i,substreams:o}},w0=l=>{const n=l.substreams[0];return x(n),n.fscod<3?_o[n.fscod]:n.fscod2!==null&&n.fscod2<3?f0[n.fscod2]:null},x0=l=>{const n=l.substreams[0];x(n);let i=Lf[n.acmod]+n.lfeon;if(n.numDepSub>0){const r=[2,2,1,1,2,2,2,1,1];for(let o=0;o<9;o++)n.chanLoc&1<<8-o&&(i+=r[o])}return i};class ta{constructor(n){this.input=n}dispose(){}}const Wt=new Uint8Array(0);class ht{constructor(n,i,r,o,u=-1,c,d){if(this.data=n,this.type=i,this.timestamp=r,this.duration=o,this.sequenceNumber=u,n===Wt&&c===void 0)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(c===void 0&&(c=n.byteLength),!(n instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if(i!=="key"&&i!=="delta")throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(r))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(o)||o<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(u))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(c)||c<0)throw new TypeError("byteLength must be a non-negative integer.");if(d!==void 0&&(typeof d!="object"||!d))throw new TypeError("sideData, when provided, must be an object.");if(d?.alpha!==void 0&&!(d.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(d?.alphaByteLength!==void 0&&(!Number.isInteger(d.alphaByteLength)||d.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=c,this.sideData=d??{},this.sideData.alpha&&this.sideData.alphaByteLength===void 0&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===Wt}get microsecondTimestamp(){return Math.trunc(yo*this.timestamp)}get microsecondDuration(){return Math.trunc(yo*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if(typeof EncodedVideoChunk>"u")throw new Error("Your browser does not support EncodedVideoChunk.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(n=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if(typeof EncodedVideoChunk>"u")throw new Error("Your browser does not support EncodedVideoChunk.");return new EncodedVideoChunk({data:this.sideData.alpha,type:n,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if(typeof EncodedAudioChunk>"u")throw new Error("Your browser does not support EncodedAudioChunk.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(n,i){if(!(n instanceof EncodedVideoChunk||n instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const r=new Uint8Array(n.byteLength);return n.copyTo(r),new ht(r,n.type,n.timestamp/1e6,(n.duration??0)/1e6,void 0,void 0,i)}clone(n){if(n!==void 0&&(typeof n!="object"||n===null))throw new TypeError("options, when provided, must be an object.");if(n?.data!==void 0&&!(n.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(n?.type!==void 0&&n.type!=="key"&&n.type!=="delta")throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(n?.timestamp!==void 0&&!Number.isFinite(n.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(n?.duration!==void 0&&!Number.isFinite(n.duration))throw new TypeError("options.duration, when provided, must be a number.");if(n?.sequenceNumber!==void 0&&!Number.isFinite(n.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(n?.sideData!==void 0&&(typeof n.sideData!="object"||n.sideData===null))throw new TypeError("options.sideData, when provided, must be an object.");return new ht(n?.data??this.data,n?.type??this.type,n?.timestamp??this.timestamp,n?.duration??this.duration,n?.sequenceNumber??this.sequenceNumber,this.byteLength,n?.sideData??this.sideData)}}const _S=l=>{let i=(l.hasVideo?"video/":l.hasAudio?"audio/":"application/")+(l.isQuickTime?"quicktime":"mp4");if(l.codecStrings.length>0){const r=[...new Set(l.codecStrings)];i+=`; codecs="${r.join(", ")}"`}return i},C0=l=>{const n=Re(l);let i=0;const r=n.getUint8(i);i+=1,i+=3;const o=Is(l.subarray(i,i+16));i+=16;let u=null;if(r>0){const d=n.getUint32(i);if(i+=4,d>0){u=[];for(let m=0;ml.systemId===n.systemId&&tS(l.data,n.data);const er=8,Cs=16,Pa=l=>{let n=ee(l);const i=Je(l,4);let r=8;n===1&&(n=cn(l),r=16);const u=n-r;return u<0?null:{name:i,totalSize:n,headerSize:r,contentSize:u}},ei=l=>si(l)/65536,af=l=>si(l)/1073741824,rf=l=>{let n=0;for(let i=0;i<4;i++){n<<=7;const r=oe(l);if(n|=r&127,(r&128)===0)break}return n},Tn=l=>{let n=at(l);return l.skip(2),n=Math.min(n,l.remainingLength),Ut.decode(fe(l,n))},ES=l=>{const n=Pa(l);if(!n||n.name!=="data"||l.remainingLength<8)return null;const i=ee(l);l.skip(4);const r=fe(l,n.contentSize-8);switch(i){case 1:return Ut.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new co(r,"image/jpeg");case 14:return new co(r,"image/png");case 27:return new co(r,"image/bmp");default:return r}};const wn=16,Gn=new Uint32Array(256),tr=new Uint32Array(256),nr=new Uint32Array(256),ar=new Uint32Array(256),ir=new Uint32Array(256),bt=new Uint32Array(256),E0=new Uint32Array(10);let A0=!1;const AS=()=>{const l=new Uint8Array(256),n=new Uint8Array(256),i=new Uint8Array(256);for(let u=0,c=1;u<256;u++)i[u]=c,n[c]=u,c=c^c<<1^(c&128?283:0);const r=(u,c)=>u&&c?i[(n[u]+n[c])%255]:0;l[0]=99;for(let u=1;u<256;u++){const c=i[255-n[u]];let d=c^c<<1^c<<2^c<<3^c<<4;d=d>>>8^d&255^99,l[u]=d}for(let u=0;u<256;u++){const c=l[u],d=l.indexOf(u);Gn[u]=c<<24|c<<16|c<<8|c,bt[u]=d<<24|d<<16|d<<8|d;const m=r(d,14),p=r(d,9),y=r(d,13),g=r(d,11),k=m<<24|p<<16|y<<8|g;tr[u]=k,nr[u]=k>>>8|k<<24,ar[u]=k>>>16|k<<16,ir[u]=k>>>24|k<<8}let o=1;for(let u=0;u<10;u++)E0[u]=o<<24,o=o<<1^(o&128?283:0);A0=!0};class P0{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(wn/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(wn),this.out=new Uint8Array(wn),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:n,iv:i}){x(n.byteLength===16),x(i.byteLength===16),A0||AS();const r=new DataView(n.buffer,n.byteOffset,n.byteLength),o=new DataView(i.buffer,i.byteOffset,i.byteLength);this.roundkey[0]=r.getUint32(0,!1),this.roundkey[1]=r.getUint32(4,!1),this.roundkey[2]=r.getUint32(8,!1),this.roundkey[3]=r.getUint32(12,!1),this.iv[0]=o.getUint32(0,!1),this.iv[1]=o.getUint32(4,!1),this.iv[2]=o.getUint32(8,!1),this.iv[3]=o.getUint32(12,!1);for(let u=4;u<44;u+=4){const c=this.roundkey[u-1];this.roundkey[u]=this.roundkey[u-4]^Gn[c>>>16&255]&4278190080^Gn[c>>>8&255]&16711680^Gn[c>>>0&255]&65280^Gn[c>>>24&255]&255^E0[u/4-1],this.roundkey[u+1]=this.roundkey[u-3]^this.roundkey[u],this.roundkey[u+2]=this.roundkey[u-2]^this.roundkey[u+1],this.roundkey[u+3]=this.roundkey[u-1]^this.roundkey[u+2]}for(let u=0,c=40;u>>24&255]&255]^nr[Gn[d>>>16&255]&255]^ar[Gn[d>>>8&255]&255]^ir[Gn[d>>>0&255]&255]}}decrypt(){let n=this.inView.getUint32(0,!1)^this.roundkey[0],i=this.inView.getUint32(4,!1)^this.roundkey[1],r=this.inView.getUint32(8,!1)^this.roundkey[2],o=this.inView.getUint32(12,!1)^this.roundkey[3];const u=this.inView.getUint32(0,!1),c=this.inView.getUint32(4,!1),d=this.inView.getUint32(8,!1),m=this.inView.getUint32(12,!1);let p,y,g,k;for(let _=1;_<10;_++){const C=_*4;p=tr[n>>>24]^nr[o>>>16&255]^ar[r>>>8&255]^ir[i&255]^this.roundkey[C],y=tr[i>>>24]^nr[n>>>16&255]^ar[o>>>8&255]^ir[r&255]^this.roundkey[C+1],g=tr[r>>>24]^nr[i>>>16&255]^ar[n>>>8&255]^ir[o&255]^this.roundkey[C+2],k=tr[o>>>24]^nr[r>>>16&255]^ar[i>>>8&255]^ir[n&255]^this.roundkey[C+3],n=p,i=y,r=g,o=k}const T=bt[n>>>24&255]&4278190080^bt[o>>>16&255]&16711680^bt[r>>>8&255]&65280^bt[i>>>0&255]&255^this.roundkey[40],w=bt[i>>>24&255]&4278190080^bt[n>>>16&255]&16711680^bt[o>>>8&255]&65280^bt[r>>>0&255]&255^this.roundkey[41],S=bt[r>>>24&255]&4278190080^bt[i>>>16&255]&16711680^bt[n>>>8&255]&65280^bt[o>>>0&255]&255^this.roundkey[42],E=bt[o>>>24&255]&4278190080^bt[r>>>16&255]&16711680^bt[i>>>8&255]&65280^bt[n>>>0&255]&255^this.roundkey[43];this.outView.setUint32(0,T^this.iv[0],!1),this.outView.setUint32(4,w^this.iv[1],!1),this.outView.setUint32(8,S^this.iv[2],!1),this.outView.setUint32(12,E^this.iv[3],!1),this.iv[0]=u,this.iv[1]=c,this.iv[2]=d,this.iv[3]=m}}const PS=(l,n,i)=>{let r=!1,o=0;const u=2**16,c=16,d=new P0;return new ReadableStream({pull:async m=>{r||(d.init(await n()),r=!0);const p=u+c;let y=l.requestSliceRange(o,0,p);if(y instanceof Promise&&(y=await y),!y||y.length===0)throw new Error("Invalid ciphertext.");const g=y.length;if(g%16!==0)throw new Error("Invalid ciphertext.");const k=g===p?g-c:g,T=fe(y,k),w=new Uint8Array(k);for(let S=0;S16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const E=w.subarray(0,k-S);m.enqueue(E),m.close(),i()}},cancel:()=>{i()}})};class Vf extends ta{constructor(n){super(n),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=n._reader}async getTrackBackings(){return await this.readMetadata(),this.tracks.map(n=>n.trackBacking)}async getMimeType(){await this.readMetadata();const n=await this.getTrackBackings(),i=await Promise.all(n.map(r=>r.getDecoderConfig().then(o=>o?.codec??null)));return _S({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(r=>r.info?.type==="video"),hasAudio:this.tracks.some(r=>r.info?.type==="audio"),codecStrings:i.filter(Boolean)})}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}readMetadata(){return this.metadataPromise??=(async()=>{let n=0,i=!1;for(;;){let r=this.reader.requestSliceRange(n,er,Cs);if(r instanceof Promise&&(r=await r),!r)break;const o=n,u=Pa(r);if(!u)break;if(u.name==="ftyp"||u.name==="styp"){const c=Je(r,4);this.isQuickTime=c==="qt "}else if(u.name==="moov"){let c=this.reader.requestSlice(r.filePos,u.contentSize);if(c instanceof Promise&&(c=await c),!c)break;this.moovSlice=c,this.readContiguousBoxes(this.moovSlice);for(const d of this.tracks){const m=d.editListPreviousSegmentDurations/this.movieTimescale;d.editListOffset-=Math.round(m*d.timescale)}i=this.isFragmented&&this.reader.fileSize!==null&&this.reader.fileSize>o+u.totalSize;break}else if(u.name==="moof"){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');const c=await this.input._initInput._getDemuxer();if(c.constructor!==Vf)throw new Error("Init input must match the input's format.");await c.readMetadata(),this.movieTimescale=c.movieTimescale,this.movieDurationInTimescale=c.movieDurationInTimescale,this.metadataTags=c.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=c.fragmentTrackDefaults,this.psshBoxes=c.psshBoxes;for(const d of c.tracks){const m={id:d.id,demuxer:this,trackBacking:null,disposition:d.disposition,timescale:d.timescale,durationInMediaTimescale:d.durationInMediaTimescale,durationInMovieTimescale:d.durationInMovieTimescale,rotation:d.rotation,internalCodecId:d.internalCodecId,name:d.name,languageCode:d.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:d.editListPreviousSegmentDurations,editListOffset:d.editListOffset,encryptionInfo:d.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:d.info};if(d.trackBacking){if(x(m.info),m.info.type==="video"&&m.info.width!==-1){const p=m;m.trackBacking=new dg(p),this.tracks.push(m)}else if(m.info.type==="audio"&&m.info.numberOfChannels!==-1){const p=m;m.trackBacking=new hg(p),this.tracks.push(m)}}}i=!1;break}n=o+u.totalSize}if(i){x(this.reader.fileSize!==null);let r=this.reader.requestSlice(this.reader.fileSize-4,4);r instanceof Promise&&(r=await r),x(r);const o=ee(r),u=this.reader.fileSize-o;if(u>=0&&u<=this.reader.fileSize-Cs){let c=this.reader.requestSliceRange(u,er,Cs);if(c instanceof Promise&&(c=await c),c){const d=Pa(c);if(d&&d.name==="mfra"){let m=this.reader.requestSlice(c.filePos,d.contentSize);m instanceof Promise&&(m=await m),m&&this.readContiguousBoxes(m)}}}}})()}getSampleTableForTrack(n){if(n.sampleTable)return n.sampleTable;const i={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(n.sampleTable=i,n.sampleTableByteOffset===null)return i;x(this.moovSlice);const r=this.moovSlice.slice(n.sampleTableByteOffset);if(this.currentTrack=n,this.traverseBox(r),this.currentTrack=null,n.info?.type==="audio"&&n.info.codec&&gr.includes(n.info.codec)&&i.sampleCompositionTimeOffsets.length===0){x(n.info?.type==="audio");const u=l0(n.info.codec),c=[],d=[];for(let m=0;mL.startIndex),E=i.sampleTimingEntries[S],_=Oe(i.sampleTimingEntries,w,L=>L.startIndex),C=i.sampleTimingEntries[_],B=E.startDecodeTimestamp+(T-E.startIndex)*E.delta,D=C.startDecodeTimestamp+(w-C.startIndex)*C.delta-B,z=Zt(c);z&&z.delta===D?z.count++:c.push({startIndex:p.startChunkIndex+k,startDecodeTimestamp:B,count:1,delta:D});const H=p.samplesPerChunk*u.sampleSize*n.info.numberOfChannels;d.push(H)}p.startSampleIndex=p.startChunkIndex,p.samplesPerChunk=1}i.sampleTimingEntries=c,i.sampleSizes=d}if(i.sampleCompositionTimeOffsets.length>0){i.presentationTimestamps=[];for(const u of i.sampleTimingEntries)for(let c=0;cu.presentationTimestamp-c.presentationTimestamp),i.presentationTimestampIndexMap=Array(i.presentationTimestamps.length).fill(-1);for(let u=0;ug.moofOffset===u.moofOffset);if(y)sf(c,y.timestamp);else{const g=Oe(m,u.moofOffset-1,k=>k.moofOffset);if(g!==-1){const k=m[g];sf(c,k.endTimestamp)}}c.startTimestampIsFinal=!0}const p=Oe(m,c.startTimestamp,y=>y.startTimestamp);if((p===-1||m[p].moofOffset!==u.moofOffset)&&m.splice(p+1,0,{moofOffset:u.moofOffset,startTimestamp:c.startTimestamp,endTimestamp:c.endTimestamp}),c.encryptionAuxInfo&&d.encryptionInfo){const y=await D0(this.reader,d.encryptionInfo,c.encryptionAuxInfo);for(let g=0;g0){c.languageCode="";for(let p=0;p<3;p++)c.languageCode=String.fromCharCode(96+(m&31))+c.languageCode,m>>=5;t0(c.languageCode)||(c.languageCode=At)}}break;case"hdlr":{const c=this.currentTrack;if(!c)break;n.skip(8);const d=Je(n,4);d==="vide"?c.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:null,avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}:d==="soun"&&(c.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const c=this.currentTrack;if(!c)break;c.sampleTableByteOffset=i,this.readContiguousBoxes(n.slice(o,r.contentSize))}break;case"stsd":{const c=this.currentTrack;if(!c||c.info===null||c.sampleTable)break;const d=oe(n);n.skip(3);const m=ee(n);for(let p=0;p0&&(T===1?(n.skip(4),S=8*ee(n),n.skip(8)):T===2&&(n.skip(4),E=iy(n),w=ee(n),n.skip(4),S=ee(n),_=ee(n),n.skip(8))),c.info.numberOfChannels=w,c.info.sampleRate=E,c.frmaCodecString=null,this.readContiguousBoxes(n.slice(n.filePos,y+g.totalSize-n.filePos));const C=k==="enca"?c.frmaCodecString:k;if(c.frmaCodecString=null,C!=="mp4a")if(C==="opus")c.info.codec="opus",c.info.sampleRate=Co;else if(C==="flac")c.info.codec="flac";else if(C==="ulaw")c.info.codec="ulaw";else if(C==="alaw")c.info.codec="alaw";else if(C==="ac-3")c.info.codec="ac3";else if(C==="ec-3")c.info.codec="eac3";else if(C==="twos")S===8?c.info.codec="pcm-s8":S===16?c.info.codec=c.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(ke._warn(`Unsupported sample size ${S} for codec 'twos'.`),c.info.codec=null);else if(C==="sowt")S===8?c.info.codec="pcm-s8":S===16?c.info.codec="pcm-s16":(ke._warn(`Unsupported sample size ${S} for codec 'sowt'.`),c.info.codec=null);else if(C==="raw ")c.info.codec="pcm-u8";else if(C==="in24")c.info.codec=c.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if(C==="in32")c.info.codec=c.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if(C==="fl32")c.info.codec=c.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if(C==="fl64")c.info.codec=c.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if(C==="ipcm"){const B=c.info.pcmSampleSize;c.info.pcmLittleEndian?B===16?c.info.codec="pcm-s16":B===24?c.info.codec="pcm-s24":B===32?c.info.codec="pcm-s32":(ke._warn(`Invalid ipcm sample size ${B}.`),c.info.codec=null):B===16?c.info.codec="pcm-s16be":B===24?c.info.codec="pcm-s24be":B===32?c.info.codec="pcm-s32be":(ke._warn(`Invalid ipcm sample size ${B}.`),c.info.codec=null)}else if(C==="fpcm"){const B=c.info.pcmSampleSize;c.info.pcmLittleEndian?B===32?c.info.codec="pcm-f32":B===64?c.info.codec="pcm-f64":(ke._warn(`Invalid fpcm sample size ${B}.`),c.info.codec=null):B===32?c.info.codec="pcm-f32be":B===64?c.info.codec="pcm-f64be":(ke._warn(`Invalid fpcm sample size ${B}.`),c.info.codec=null)}else if(C==="lpcm"&&_!==null){const B=S+7>>3,P=!!(_&1),D=!!(_&2),z=_&4?-1:0;S>0&&S<=64&&(P?S===32&&(c.info.codec=D?"pcm-f32be":"pcm-f32"):z&1<0?(c.encryptionInfo.defaultCryptByteBlock=m>>4,c.encryptionInfo.defaultSkipByteBlock=m&15):(c.encryptionInfo.defaultCryptByteBlock=0,c.encryptionInfo.defaultSkipByteBlock=0),c.encryptionInfo.defaultIsProtected=oe(n)!==0,c.encryptionInfo.defaultPerSampleIvSize=oe(n),c.encryptionInfo.defaultKid=Is(fe(n,16)),c.encryptionInfo.defaultIsProtected&&c.encryptionInfo.defaultPerSampleIvSize===0){const p=oe(n),y=new Uint8Array(16);y.set(fe(n,p),0),c.encryptionInfo.defaultConstantIv=y}}break;case"avcC":{const c=this.currentTrack;if(!c)break;x(c.info),c.info.codecDescription=fe(n,r.contentSize)}break;case"hvcC":{const c=this.currentTrack;if(!c)break;x(c.info),c.info.codecDescription=fe(n,r.contentSize)}break;case"vpcC":{const c=this.currentTrack;if(!c)break;x(c.info?.type==="video"),n.skip(4);const d=oe(n),m=oe(n),p=oe(n),y=p>>4,g=p>>1&7,k=p&1,T=oe(n),w=oe(n),S=oe(n);c.info.vp9CodecInfo={profile:d,level:m,bitDepth:y,chromaSubsampling:g,videoFullRangeFlag:k,colourPrimaries:T,transferCharacteristics:w,matrixCoefficients:S}}break;case"av1C":{const c=this.currentTrack;if(!c)break;x(c.info?.type==="video"),n.skip(1);const d=oe(n),m=d>>5,p=d&31,y=oe(n),g=y>>7,k=y>>6&1,T=y>>5&1,w=y>>4&1,S=y>>3&1,E=y>>2&1,_=y&3,C=m===2&&k?T?12:10:k?10:8;c.info.av1CodecInfo={profile:m,level:p,tier:g,bitDepth:C,monochrome:w,chromaSubsamplingX:S,chromaSubsamplingY:E,chromaSamplePosition:_}}break;case"colr":{const c=this.currentTrack;if(!c)break;x(c.info?.type==="video");const d=Je(n,4);if(d!=="nclx"&&d!=="nclc")break;const m=at(n),p=at(n),y=at(n);let g;d==="nclx"&&(g=!!(oe(n)&128)),c.info.colorSpace={primaries:mo[m],transfer:po[p],matrix:go[y],fullRange:g}}break;case"pasp":{const c=this.currentTrack;if(!c)break;x(c.info?.type==="video");const d=ee(n),m=ee(n);d>0&&m>0&&(d>m?c.info.squarePixelWidth=Math.round(c.info.width*d/m):c.info.squarePixelHeight=Math.round(c.info.height*m/d))}break;case"wave":this.readContiguousBoxes(n.slice(o,r.contentSize));break;case"esds":{const c=this.currentTrack;if(!c)break;x(c.info?.type==="audio"),n.skip(4);const d=oe(n);x(d===3),rf(n),n.skip(2);const m=oe(n),p=(m&128)!==0,y=(m&64)!==0,g=(m&32)!==0;if(p&&n.skip(2),y){const E=oe(n);n.skip(E)}g&&n.skip(2);const k=oe(n);x(k===4);const T=rf(n),w=n.filePos,S=oe(n);if(S===64||S===103?(c.info.codec="aac",c.info.aacCodecInfo={isMpeg2:S===103,objectType:null}):S===105||S===107?c.info.codec="mp3":S===221?c.info.codec="vorbis":ke._warn(`Unsupported audio codec (objectTypeIndication ${S}) - discarding track.`),n.skip(12),T>n.filePos-w){const E=oe(n);x(E===5);const _=rf(n);if(c.info.codecDescription=fe(n,_),c.info.codec==="aac"){const C=r0(c.info.codecDescription);C.numberOfChannels!==null&&(c.info.numberOfChannels=C.numberOfChannels),C.sampleRate!==null&&(c.info.sampleRate=C.sampleRate)}}}break;case"enda":{const c=this.currentTrack;if(!c)break;x(c.info?.type==="audio"),c.info.pcmLittleEndian=!!(at(n)&255)}break;case"pcmC":{const c=this.currentTrack;if(!c)break;x(c.info?.type==="audio"),n.skip(4);const d=oe(n);c.info.pcmLittleEndian=!!(d&1),c.info.pcmSampleSize=oe(n)}break;case"dOps":{const c=this.currentTrack;if(!c)break;x(c.info?.type==="audio"),n.skip(1);const d=oe(n),m=at(n),p=ee(n),y=Ef(n),g=oe(n);let k;g!==0?k=fe(n,2+d):k=new Uint8Array(0);const T=new Uint8Array(19+k.byteLength),w=new DataView(T.buffer);w.setUint32(0,1332770163,!1),w.setUint32(4,1214603620,!1),w.setUint8(8,1),w.setUint8(9,d),w.setUint16(10,m,!0),w.setUint32(12,p,!0),w.setInt16(16,y,!0),w.setUint8(18,g),T.set(k,19),c.info.codecDescription=T,c.info.numberOfChannels=d}break;case"dfLa":{const c=this.currentTrack;if(!c)break;x(c.info?.type==="audio"),n.skip(4);const d=127,m=128,p=n.filePos;for(;n.filePos>>12,B=(_>>9&7)+1;c.info.sampleRate=C,c.info.numberOfChannels=B,n.skip(20)}else n.skip(S);if(w&m)break}const y=n.filePos;n.filePos=p;const g=fe(n,y-p),k=new Uint8Array(4+g.byteLength);new DataView(k.buffer).setUint32(0,1716281667,!1),k.set(g,4),c.info.codecDescription=k}break;case"dac3":{const c=this.currentTrack;if(!c)break;x(c.info?.type==="audio");const d=fe(n,3),m=new Me(d),p=m.readBits(2);m.skipBits(8);const y=m.readBits(3),g=m.readBits(1);p<3&&(c.info.sampleRate=_o[p]),c.info.numberOfChannels=Lf[y]+g}break;case"dec3":{const c=this.currentTrack;if(!c)break;x(c.info?.type==="audio");const d=fe(n,r.contentSize),m=CS(d);if(!m){ke._warn("Invalid dec3 box contents, ignoring.");break}const p=w0(m);p!==null&&(c.info.sampleRate=p),c.info.numberOfChannels=x0(m)}break;case"stts":{const c=this.currentTrack;if(!c||!c.sampleTable)break;n.skip(4);const d=ee(n);let m=0,p=0;for(let y=0;yC.id===d);if(!m)break;const p=ee(n),y=(p&48)>>4,g=(p&12)>>2,k=p&3,T=[oe,at,Kn,ee],w=T[y],S=T[g],E=T[k],_=ee(n);for(let C=0;C<_;C++){const B=c===1?cn(n):ee(n),P=c===1?cn(n):ee(n);w(n),S(n),E(n),m.fragmentLookupTable.push({timestamp:B,moofOffset:P})}m.fragmentLookupTable.sort((C,B)=>C.timestamp-B.timestamp);for(let C=0;C({presentationTimestamp:y.presentationTimestamp,sampleIndex:g})).sort((y,g)=>y.presentationTimestamp-g.presentationTimestamp);for(let y=0;y_.id===w);if(!S)break;const E=this.fragmentTrackDefaults.find(_=>_.trackId===w);this.currentTrack=S,S.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:E?.defaultSampleDescriptionIndex??null,defaultSampleDuration:E?.defaultSampleDuration??null,defaultSampleSize:E?.defaultSampleSize??null,defaultSampleFlags:E?.defaultSampleFlags??null,startTimestamp:null,encryptionAuxInfo:null},d?S.currentFragmentState.baseDataOffset=cn(n):T&&(S.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),m&&(S.currentFragmentState.sampleDescriptionIndex=ee(n)),p&&(S.currentFragmentState.defaultSampleDuration=ee(n)),y&&(S.currentFragmentState.defaultSampleSize=ee(n)),g&&(S.currentFragmentState.defaultSampleFlags=ee(n)),k&&(S.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const c=this.currentTrack;if(!c)break;x(c.currentFragmentState);const d=oe(n);n.skip(3);const m=d===0?ee(n):cn(n);c.currentFragmentState.startTimestamp=m}break;case"trun":{const c=this.currentTrack;if(!c)break;x(this.currentFragment),x(c.currentFragmentState);const d=oe(n),m=Kn(n),p=!!(m&1),y=!!(m&4),g=!!(m&256),k=!!(m&512),T=!!(m&1024),w=!!(m&2048),S=ee(n);let E=null;p&&(E=si(n));let _=null;y&&(_=ee(n));let C;this.currentFragment.trackData.has(c.id)?(C=this.currentFragment.trackData.get(c.id),E!==null&&(C.currentOffset=c.currentFragmentState.baseDataOffset+E)):(C={track:c,currentTimestamp:0,currentOffset:c.currentFragmentState.baseDataOffset+(E??0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(c.id,C));for(let B=0;B0&&(y=fe(n,p));const g=pg(c);g.defaultSampleInfoSize=m,g.sampleSizes=y,g.sampleCount=p}break;case"saio":{const c=this.currentTrack;if(!c||!c.encryptionInfo)break;const d=oe(n);if(Kn(n)&1){const k=Je(n,4),T=ee(n);if(k!==c.encryptionInfo.scheme||T!==0)break}const p=ee(n);if(p===0)break;p>1&&ke._warn("Multiple saio entries are not supported; using the first offset only.");let y=d===0?ee(n):Number(cn(n));this.currentFragment&&(y+=this.currentFragment.moofOffset);const g=pg(c);g.offset=y}break;case"senc":{const c=this.currentTrack;if(!c||!c.encryptionInfo)break;x(this.currentFragment);const d=this.currentFragment.trackData.get(c.id);if(!d)break;n.skip(1);const p=!!(Kn(n)&2),y=ee(n),g=c.encryptionInfo.defaultPerSampleIvSize;x(g!==null);for(let k=0;k0?T.set(fe(n,g),0):T.set(c.encryptionInfo.defaultConstantIv,0);let w=null;if(p){const E=at(n);w=[];for(let _=0;_0&&(this.metadataTags.trackNumber??=T),w&&Number.isInteger(w)&&w>0&&(this.metadataTags.tracksTotal??=w)}break;case"trkn":if(g instanceof Uint8Array&&g.length>=6){const k=Re(g),T=k.getUint16(2,!1),w=k.getUint16(4,!1);T>0&&(this.metadataTags.trackNumber??=T),w>0&&(this.metadataTags.tracksTotal??=w)}break;case"disc":case"disk":if(g instanceof Uint8Array&&g.length>=6){const k=Re(g),T=k.getUint16(2,!1),w=k.getUint16(4,!1);T>0&&(this.metadataTags.discNumber??=T),w>0&&(this.metadataTags.discsTotal??=w)}break}}}break}return n.filePos=u,!0}}class B0{constructor(n){this.internalTrack=n,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const n=this.internalTrack.demuxer,i=this.internalTrack.trackBacking.getType();let r=0;for(const o of n.tracks)if(o.trackBacking.getType()===i&&r++,o===this.internalTrack)break;return r}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const n=this.internalTrack;return n.durationInMediaTimescale<=0?null:(x(n.trackBacking),((await n.trackBacking.getFirstPacket({metadataOnly:!0}))?.timestamp??0)+n.durationInMediaTimescale/n.timescale)}async getLiveRefreshInterval(){return null}async getFirstPacket(n){const i=await this.fetchPacketForSampleIndex(0,n);return i||!this.internalTrack.demuxer.isFragmented?i:this.performFragmentedLookup(null,r=>r.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,n)}mapTimestampIntoTimescale(n){return Os(n*this.internalTrack.timescale)+this.internalTrack.editListOffset}async getPacket(n,i){const r=this.mapTimestampIntoTimescale(n),o=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),u=bf(o,r),c=await this.fetchPacketForSampleIndex(u,i);return!mg(o)||!this.internalTrack.demuxer.isFragmented?c:this.performFragmentedLookup(null,d=>{const m=d.trackData.get(this.internalTrack.id);if(!m)return{sampleIndex:-1,correctSampleFound:!1};const p=Oe(m.presentationTimestamps,r,k=>k.presentationTimestamp),y=p!==-1?m.presentationTimestamps[p].sampleIndex:-1,g=p!==-1&&r{if(u===o.fragment){const c=u.trackData.get(this.internalTrack.id);if(o.sampleIndex+1{const m=d.trackData.get(this.internalTrack.id);if(!m)return{sampleIndex:-1,correctSampleFound:!1};const p=If(m.presentationTimestamps,k=>m.samples[k.sampleIndex].isKeyFrame&&k.presentationTimestamp<=r),y=p!==-1?m.presentationTimestamps[p].sampleIndex:-1,g=p!==-1&&r{if(u===o.fragment){const d=u.trackData.get(this.internalTrack.id).samples.findIndex((m,p)=>m.isKeyFrame&&p>o.sampleIndex);if(d!==-1)return{sampleIndex:d,correctSampleFound:!0}}else{const c=u.trackData.get(this.internalTrack.id);if(c&&c.firstKeyFrameTimestamp!==null){const d=c.samples.findIndex(m=>m.isKeyFrame);return x(d!==-1),{sampleIndex:d,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,i)}async fetchPacketForSampleIndex(n,i){if(n===-1)return null;const r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),o=DS(r,n);if(!o)return null;let u;if(i.metadataOnly)u=Wt;else{let p=this.internalTrack.demuxer.reader.requestSlice(o.sampleOffset,o.sampleSize);if(p instanceof Promise&&(p=await p),!p)return null;if(u=fe(p,o.sampleSize),this.internalTrack.encryptionAuxInfo){x(this.internalTrack.encryptionInfo);const y=await D0(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);nE.timestamp),g=y!==-1?this.internalTrack.fragmentLookupTable[y]:null,k=Oe(this.internalTrack.fragmentPositionCache,r,E=>E.startTimestamp),T=k!==-1?this.internalTrack.fragmentPositionCache[k]:null,w=Math.max(g?.moofOffset??0,T?.moofOffset??0)||null;let S;for(n?w===null||n.moofOffset>=w?(S=n.moofOffset+n.moofSize,d=n):S=w:S=w??0;;){if(d){const B=d.trackData.get(this.internalTrack.id);if(B&&B.startTimestamp>o)break}let E=c.reader.requestSliceRange(S,er,Cs);if(E instanceof Promise&&(E=await E),!E)break;const _=S,C=Pa(E);if(!C)break;if(C.name==="moof"){d=await c.readFragment(_);const{sampleIndex:B,correctSampleFound:P}=i(d);if(P)return this.fetchPacketInFragment(d,B,u);B!==-1&&(m=d,p=B)}S=_+C.totalSize}if(g&&(!m||m.moofOffset{if(this.internalTrack.info.codec==="vp9"&&!this.internalTrack.info.vp9CodecInfo){const i=await this.getFirstPacket({});this.internalTrack.info.vp9CodecInfo=i&&k0(i.data)}else if(this.internalTrack.info.codec==="av1"&&!this.internalTrack.info.av1CodecInfo){const i=await this.getFirstPacket({});this.internalTrack.info.av1CodecInfo=i&&S0(i.data)}const n={codec:Uf(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace??void 0};return(this.internalTrack.info.width!==this.internalTrack.info.squarePixelWidth||this.internalTrack.info.height!==this.internalTrack.info.squarePixelHeight)&&(n.displayAspectWidth=this.internalTrack.info.squarePixelWidth,n.displayAspectHeight=this.internalTrack.info.squarePixelHeight),n})():null}}class hg extends B0{constructor(n){super(n),this.decoderConfig=null,this.internalTrack=n}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfig??={codec:Ff(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}:null}}const bf=(l,n)=>{if(l.presentationTimestamps){const i=Oe(l.presentationTimestamps,n,r=>r.presentationTimestamp);return i===-1?-1:l.presentationTimestamps[i].sampleIndex}else{const i=Oe(l.sampleTimingEntries,n,o=>o.startDecodeTimestamp);if(i===-1)return-1;const r=l.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((n-r.startDecodeTimestamp)/r.delta),r.count-1)}},BS=(l,n)=>{if(!l.keySampleIndices)return bf(l,n);if(l.presentationTimestamps){const i=Oe(l.presentationTimestamps,n,r=>r.presentationTimestamp);if(i===-1)return-1;for(let r=i;r>=0;r--){const o=l.presentationTimestamps[r].sampleIndex;if(Fs(l.keySampleIndices,o,c=>c)!==-1)return o}return-1}else{const i=bf(l,n),r=Oe(l.keySampleIndices,i,o=>o);return l.keySampleIndices[r]??-1}},DS=(l,n)=>{const i=Oe(l.sampleTimingEntries,n,_=>_.startIndex),r=l.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=n)return null;let u=r.startDecodeTimestamp+(n-r.startIndex)*r.delta;const c=Oe(l.sampleCompositionTimeOffsets,n,_=>_.startIndex),d=l.sampleCompositionTimeOffsets[c];d&&n-d.startIndex_.startSampleIndex),y=l.sampleToChunk[p];x(y);const g=y.startChunkIndex+Math.floor((n-y.startSampleIndex)/y.samplesPerChunk),k=l.chunkOffsets[g],T=y.startSampleIndex+(g-y.startChunkIndex)*y.samplesPerChunk;let w=0,S=k;if(l.sampleSizes.length===1)S+=m*(n-T),w+=m*y.samplesPerChunk;else for(let _=T;__)!==-1:!0}},IS=(l,n)=>{if(!l.keySampleIndices)return n+1;const i=Oe(l.keySampleIndices,n,r=>r);return l.keySampleIndices[i+1]??-1},sf=(l,n)=>{l.startTimestamp+=n,l.endTimestamp+=n;for(const i of l.samples)i.presentationTimestamp+=n;for(const i of l.presentationTimestamps)i.presentationTimestamp+=n},RS=l=>{const[n,i]=l,r=Math.atan2(i,n);return Number.isFinite(r)?r*(180/Math.PI):0},mg=l=>l.sampleSizes.length===0,pg=l=>l.currentFragmentState?l.currentFragmentState.encryptionAuxInfo??={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}:l.encryptionAuxInfo??={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null},D0=async(l,n,i)=>{if(i.resolved)return i.resolved;if(i.offset===null||i.sampleCount===0)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{x(i.sampleSizes);for(let d=0;d0?i.defaultSampleInfoSize:i.sampleSizes[d],p=new Uint8Array(16);u>0?p.set(fe(o,u),0):p.set(n.defaultConstantIv,0);let y=null;if(m>u){const g=at(o);y=[];for(let k=0;k{x(l.encryptionInfo);const o=l.encryptionInfo;x(o.defaultKid!==null);const u=o.defaultKid;let c;const d=l.demuxer.decryptionKeyCache.get(u);if(d)c=await d;else{if(!l.demuxer.input._formatOptions.isobmff?.resolveKeyId)throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const m=(async()=>{let p=l.demuxer.psshBoxes;if(r){p=[...p,...r.psshBoxes].filter(g=>g.keyIds===null||g.keyIds.includes(u));for(let g=0;g{const o=new Uint8Array(16);o.set(i.iv,0);const u=await crypto.subtle.importKey("raw",l,{name:"AES-CTR"},!1,["decrypt"]),c=async w=>{const S=await crypto.subtle.decrypt({name:"AES-CTR",counter:o,length:64},u,w);return new Uint8Array(S)};if(!i.subsamples)return c(r);x(n.defaultCryptByteBlock!==null&&n.defaultSkipByteBlock!==null);const d=I0(i.subsamples,n.defaultCryptByteBlock,n.defaultSkipByteBlock);let m=0;for(const w of d)for(const S of w.perSubsample)m+=S.length;const p=new Uint8Array(m);let y=0;for(const w of d)for(const S of w.perSubsample)p.set(r.subarray(S.offset,S.offset+S.length),y),y+=S.length;const g=await c(p),k=new Uint8Array(r);let T=0;for(const w of d)for(const S of w.perSubsample)k.set(g.subarray(T,T+S.length),S.offset),T+=S.length;return k},zS=(l,n,i,r)=>{const o=new P0;o.init({key:l,iv:i.iv});const u=n.defaultCryptByteBlock,c=n.defaultSkipByteBlock;if(x(u!==null&&c!==null),!i.subsamples){const y=new Uint8Array(r),g=Math.floor(r.length/16);for(let k=0;k{const r=[],o=n!==0||i!==0;let u=0;for(const c of l){u+=c.clearLen;const d=[];if(!o)c.protectedLen>0&&d.push({offset:u,length:c.protectedLen}),u+=c.protectedLen;else{let m=c.protectedLen,p=u;for(;m>0&&!(m<16*n);){const y=16*n;d.push({offset:p,length:y}),p+=y,m-=y;const g=Math.min(16*i,m);p+=g,m-=g}u+=c.protectedLen}r.push({perSubsample:d})}return r};var K;(function(l){l[l.EBML=440786851]="EBML",l[l.EBMLVersion=17030]="EBMLVersion",l[l.EBMLReadVersion=17143]="EBMLReadVersion",l[l.EBMLMaxIDLength=17138]="EBMLMaxIDLength",l[l.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",l[l.DocType=17026]="DocType",l[l.DocTypeVersion=17031]="DocTypeVersion",l[l.DocTypeReadVersion=17029]="DocTypeReadVersion",l[l.Void=236]="Void",l[l.Segment=408125543]="Segment",l[l.SeekHead=290298740]="SeekHead",l[l.Seek=19899]="Seek",l[l.SeekID=21419]="SeekID",l[l.SeekPosition=21420]="SeekPosition",l[l.Duration=17545]="Duration",l[l.Info=357149030]="Info",l[l.TimestampScale=2807729]="TimestampScale",l[l.MuxingApp=19840]="MuxingApp",l[l.WritingApp=22337]="WritingApp",l[l.Tracks=374648427]="Tracks",l[l.TrackEntry=174]="TrackEntry",l[l.TrackNumber=215]="TrackNumber",l[l.TrackUID=29637]="TrackUID",l[l.TrackType=131]="TrackType",l[l.FlagEnabled=185]="FlagEnabled",l[l.FlagDefault=136]="FlagDefault",l[l.FlagForced=21930]="FlagForced",l[l.FlagOriginal=21934]="FlagOriginal",l[l.FlagHearingImpaired=21931]="FlagHearingImpaired",l[l.FlagVisualImpaired=21932]="FlagVisualImpaired",l[l.FlagCommentary=21935]="FlagCommentary",l[l.FlagLacing=156]="FlagLacing",l[l.Name=21358]="Name",l[l.Language=2274716]="Language",l[l.LanguageBCP47=2274717]="LanguageBCP47",l[l.CodecID=134]="CodecID",l[l.CodecPrivate=25506]="CodecPrivate",l[l.CodecDelay=22186]="CodecDelay",l[l.SeekPreRoll=22203]="SeekPreRoll",l[l.DefaultDuration=2352003]="DefaultDuration",l[l.Video=224]="Video",l[l.PixelWidth=176]="PixelWidth",l[l.PixelHeight=186]="PixelHeight",l[l.DisplayWidth=21680]="DisplayWidth",l[l.DisplayHeight=21690]="DisplayHeight",l[l.DisplayUnit=21682]="DisplayUnit",l[l.AlphaMode=21440]="AlphaMode",l[l.Audio=225]="Audio",l[l.SamplingFrequency=181]="SamplingFrequency",l[l.Channels=159]="Channels",l[l.BitDepth=25188]="BitDepth",l[l.SimpleBlock=163]="SimpleBlock",l[l.BlockGroup=160]="BlockGroup",l[l.Block=161]="Block",l[l.BlockAdditions=30113]="BlockAdditions",l[l.BlockMore=166]="BlockMore",l[l.BlockAdditional=165]="BlockAdditional",l[l.BlockAddID=238]="BlockAddID",l[l.BlockDuration=155]="BlockDuration",l[l.ReferenceBlock=251]="ReferenceBlock",l[l.Cluster=524531317]="Cluster",l[l.Timestamp=231]="Timestamp",l[l.Cues=475249515]="Cues",l[l.CuePoint=187]="CuePoint",l[l.CueTime=179]="CueTime",l[l.CueTrackPositions=183]="CueTrackPositions",l[l.CueTrack=247]="CueTrack",l[l.CueClusterPosition=241]="CueClusterPosition",l[l.Colour=21936]="Colour",l[l.MatrixCoefficients=21937]="MatrixCoefficients",l[l.TransferCharacteristics=21946]="TransferCharacteristics",l[l.Primaries=21947]="Primaries",l[l.Range=21945]="Range",l[l.Projection=30320]="Projection",l[l.ProjectionType=30321]="ProjectionType",l[l.ProjectionPoseRoll=30325]="ProjectionPoseRoll",l[l.Attachments=423732329]="Attachments",l[l.AttachedFile=24999]="AttachedFile",l[l.FileDescription=18046]="FileDescription",l[l.FileName=18030]="FileName",l[l.FileMediaType=18016]="FileMediaType",l[l.FileData=18012]="FileData",l[l.FileUID=18094]="FileUID",l[l.Chapters=272869232]="Chapters",l[l.Tags=307544935]="Tags",l[l.Tag=29555]="Tag",l[l.Targets=25536]="Targets",l[l.TargetTypeValue=26826]="TargetTypeValue",l[l.TargetType=25546]="TargetType",l[l.TagTrackUID=25541]="TagTrackUID",l[l.TagEditionUID=25545]="TagEditionUID",l[l.TagChapterUID=25540]="TagChapterUID",l[l.TagAttachmentUID=25542]="TagAttachmentUID",l[l.SimpleTag=26568]="SimpleTag",l[l.TagName=17827]="TagName",l[l.TagLanguage=17530]="TagLanguage",l[l.TagString=17543]="TagString",l[l.TagBinary=17541]="TagBinary",l[l.ContentEncodings=28032]="ContentEncodings",l[l.ContentEncoding=25152]="ContentEncoding",l[l.ContentEncodingOrder=20529]="ContentEncodingOrder",l[l.ContentEncodingScope=20530]="ContentEncodingScope",l[l.ContentCompression=20532]="ContentCompression",l[l.ContentCompAlgo=16980]="ContentCompAlgo",l[l.ContentCompSettings=16981]="ContentCompSettings",l[l.ContentEncryption=20533]="ContentEncryption"})(K||(K={}));const MS=[K.EBML,K.Segment],Ns=[K.SeekHead,K.Info,K.Cluster,K.Tracks,K.Cues,K.Attachments,K.Chapters,K.Tags],uo=[...MS,...Ns],Sf=8,un=2,Zn=2*Sf,R0=l=>{if(l.remainingLength<1)return null;const n=oe(l);if(l.skip(-1),n===0)return null;let i=1,r=128;for(;(n&r)===0;)i++,r>>=1;return l.remainingLength{if(l.remainingLength<1)return null;const n=oe(l);if(n===0)return null;let i=1,r=128;for(;(n&r)===0;)i++,r>>=1;if(l.remainingLength{if(n<1||n>8)throw new Error("Bad unsigned int size "+n);let i=0;for(let r=0;r{if(n<1)throw new Error("Bad unsigned int size "+n);let i=0n;for(let r=0;r{const n=R0(l);return n===null||l.remainingLength{if(l.remainingLength<1)return null;if(oe(l)===255)return;l.skip(-1);const i=_s(l);if(i===null)return null;if(i!==72057594037927940)return i},Qn=l=>{x(l.remainingLength>=un);const n=jf(l);if(n===null)return null;const i=O0(l);return i===null?null:{id:n,size:i}},rr=(l,n)=>{const i=fe(l,n);let r=0;for(;r{const i=fe(l,n);let r=0;for(;r{if(n===0)return 0;if(n!==4&&n!==8)throw new Error("Bad float size "+n);return n===4?uT(l):iy(l)},Tf=async(l,n,i,r)=>{const o=new Set(i);let u=n;for(;r===null||uu?r:u,found:!1}},z0=async(l,n,i,r)=>{const u=new Set(i);let c=n;for(;c{let i=(l.hasVideo?"video/":l.hasAudio?"audio/":"application/")+(l.isWebM?"webm":"x-matroska");if(l.codecStrings.length>0){const r=[...new Set(l.codecStrings.filter(Boolean))];i+=`; codecs="${r.join(", ")}"`}return i};var Yn;(function(l){l[l.None=0]="None",l[l.Xiph=1]="Xiph",l[l.FixedSize=2]="FixedSize",l[l.Ebml=3]="Ebml"})(Yn||(Yn={}));var So;(function(l){l[l.Block=1]="Block",l[l.Private=2]="Private",l[l.Next=4]="Next"})(So||(So={}));var Ps;(function(l){l[l.Zlib=0]="Zlib",l[l.Bzlib=1]="Bzlib",l[l.lzo1x=2]="lzo1x",l[l.HeaderStripping=3]="HeaderStripping"})(Ps||(Ps={}));const of=[{id:K.SeekHead,flag:"seekHeadSeen"},{id:K.Info,flag:"infoSeen"},{id:K.Tracks,flag:"tracksSeen"},{id:K.Cues,flag:"cuesSeen"}],M0=10*2**20;class FS extends ta{constructor(n){super(n),this.readMetadataPromise=null,this.segments=[],this.currentSegment=null,this.currentTrack=null,this.currentCluster=null,this.currentBlock=null,this.currentBlockAdditional=null,this.currentCueTime=null,this.currentDecodingInstruction=null,this.currentTagTargetIsMovie=!0,this.currentSimpleTagName=null,this.currentAttachedFile=null,this.isWebM=!1,this.reader=n._reader}async getTrackBackings(){return await this.readMetadata(),this.segments.flatMap(n=>n.tracks.map(i=>i.trackBacking))}async getMimeType(){await this.readMetadata();const n=await this.getTrackBackings(),i=await Promise.all(n.map(r=>r.getDecoderConfig().then(o=>o?.codec??null)));return US({isWebM:this.isWebM,hasVideo:this.segments.some(r=>r.tracks.some(o=>o.info?.type==="video")),hasAudio:this.segments.some(r=>r.tracks.some(o=>o.info?.type==="audio")),codecStrings:i.filter(Boolean)})}async getMetadataTags(){await this.readMetadata();for(const i of this.segments)i.metadataTagsCollected||(this.reader.fileSize!==null&&await this.loadSegmentMetadata(i),i.metadataTagsCollected=!0);let n={};for(const i of this.segments)n={...n,...i.metadataTags};return n}readMetadata(){return this.readMetadataPromise??=(async()=>{let n=0;for(;;){let i=this.reader.requestSliceRange(n,un,Zn);if(i instanceof Promise&&(i=await i),!i)break;const r=Qn(i);if(!r)break;const o=r.id;let u=r.size;const c=i.filePos;if(o===K.EBML){Aa(u);let d=this.reader.requestSlice(c,u);if(d instanceof Promise&&(d=await d),!d)break;this.readContiguousElements(d)}else if(o===K.Segment){if(await this.readSegment(c,u),u===void 0||this.reader.fileSize===null)break}else if(o===K.Cluster){if(this.reader.fileSize===null)break;u===void 0&&(u=(await Tf(this.reader,c,uo,this.reader.fileSize)).pos-c);const d=Zt(this.segments);d&&(d.elementEndPos=c+u)}Aa(u),n=c+u}})()}async readSegment(n,i){this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:n,elementEndPos:i===void 0?null:n+i,clusterSeekStartPos:n,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let r=n;for(;this.currentSegment.elementEndPos===null||rw.id===y);if(T!==-1){const w=of[T].flag;this.currentSegment[w]=!0,Aa(g);let S=this.reader.requestSlice(k,g);S instanceof Promise&&(S=await S),S&&this.readContiguousElements(S)}else if(y===K.Tags||y===K.Attachments){y===K.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,Aa(g);let w=this.reader.requestSlice(k,g);w instanceof Promise&&(w=await w),w&&this.readContiguousElements(w)}else if(y===K.Cluster){this.currentSegment.clusterSeekStartPos=m;break}if(g===void 0)break;r=k+g}if(this.currentSegment.seekEntries.sort((d,m)=>d.segmentPosition-m.segmentPosition),this.reader.fileSize!==null)for(const d of this.currentSegment.seekEntries){const m=of.find(w=>w.id===d.id);if(!m||this.currentSegment[m.flag])continue;let p=this.reader.requestSliceRange(n+d.segmentPosition,un,Zn);if(p instanceof Promise&&(p=await p),!p)continue;const y=Qn(p);if(!y)continue;const{id:g,size:k}=y;if(g!==m.id)continue;Aa(k),this.currentSegment[m.flag]=!0;let T=this.reader.requestSlice(p.filePos,k);T instanceof Promise&&(T=await T),T&&this.readContiguousElements(T)}this.currentSegment.timestampScale===-1&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e9/1e6);for(const d of this.currentSegment.tracks)d.defaultDurationNs!==null&&(d.defaultDuration=this.currentSegment.timestampFactor*d.defaultDurationNs/1e9);const o=new Map(this.currentSegment.tracks.map(d=>[d.id,d]));for(const d of this.currentSegment.cuePoints){const m=o.get(d.trackId);m&&m.cuePoints.push(d)}for(const d of this.currentSegment.tracks){d.cuePoints.sort((m,p)=>m.time-p.time);for(let m=0;mc&&(c=d.cuePoints.length,u=d);for(const d of this.currentSegment.tracks)d.cuePoints.length===0&&(d.cuePoints=u.cuePoints);this.currentSegment=null}async readCluster(n,i){if(i.lastReadCluster?.elementStartPos===n)return i.lastReadCluster;let r=this.reader.requestSliceRange(n,un,Zn);r instanceof Promise&&(r=await r),x(r);const o=n,u=Qn(r);x(u);const c=u.id;x(c===K.Cluster);let d=u.size;const m=r.filePos;d===void 0&&(d=(await Tf(this.reader,m,uo,i.elementEndPos)).pos-m);let p=this.reader.requestSlice(m,d);p instanceof Promise&&(p=await p);const y={segment:i,elementStartPos:o,elementEndPos:m+d,dataStartPos:m,timestamp:-1,trackData:new Map};if(this.currentCluster=y,p){const g=this.readContiguousElements(p,uo);y.elementEndPos=g}for(const[,g]of y.trackData){const k=g.track;x(g.blocks.length>0);let T=!1;for(let _=0;_({timestamp:_.timestamp,blockIndex:C})).sort((_,C)=>_.timestamp-C.timestamp);for(let _=0;_({timestamp:_.timestamp,blockIndex:C})).sort((_,C)=>_.timestamp-C.timestamp));const w=g.blocks[g.presentationTimestamps[0].blockIndex],S=g.blocks[Zt(g.presentationTimestamps).blockIndex];g.startTimestamp=w.timestamp,g.endTimestamp=S.timestamp+S.duration;const E=Oe(k.clusterPositionCache,g.startTimestamp,_=>_.startTimestamp);(E===-1||k.clusterPositionCache[E].elementStartPos!==o)&&k.clusterPositionCache.splice(E+1,0,{elementStartPos:y.elementStartPos,startTimestamp:g.startTimestamp})}return i.lastReadCluster=y,y}getTrackDataInCluster(n,i){let r=n.trackData.get(i);if(!r){const o=n.segment.tracks.find(u=>u.id===i);if(!o)return null;r={track:o,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},n.trackData.set(i,r)}return r}expandLacedBlocks(n,i){for(let r=0;r=un;){const r=n.filePos;if(!this.traverseElement(n,i))return r}return n.filePos}traverseElement(n,i){const r=Qn(n);if(!r||i&&i.includes(r.id))return!1;const{id:o,size:u}=r,c=n.filePos;switch(Aa(u),o){case K.DocType:this.isWebM=rr(n,u)==="webm";break;case K.Seek:{if(!this.currentSegment)break;const d={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(d),this.readContiguousElements(n.slice(c,u)),(d.id===-1||d.segmentPosition===-1)&&this.currentSegment.seekEntries.pop()}break;case K.SeekID:{const d=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!d)break;d.id=we(n,u)}break;case K.SeekPosition:{const d=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!d)break;d.segmentPosition=we(n,u)}break;case K.TimestampScale:{if(!this.currentSegment)break;this.currentSegment.timestampScale=we(n,u),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale}break;case K.Duration:{if(!this.currentSegment)break;this.currentSegment.duration=lf(n,u)}break;case K.TrackEntry:{if(!this.currentSegment||(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:{...ea,primary:!1},trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(n.slice(c,u)),!this.currentTrack))break;if(this.currentTrack.decodingInstructions.some(d=>d.data?.type!=="decompress"||d.scope!==So.Block||d.data.algorithm!==Ps.HeaderStripping)&&(ke._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&this.currentTrack.id!==-1&&this.currentTrack.codecId&&this.currentTrack.info){const d=this.currentTrack.codecId.indexOf("/"),m=d===-1?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,d);if(this.currentTrack.info.type==="video"&&this.currentTrack.info.width!==-1&&this.currentTrack.info.height!==-1){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,this.currentTrack.info.displayWidth!==null&&this.currentTrack.info.displayHeight!==null){const y=this.currentTrack.info.displayWidth*this.currentTrack.info.height,g=this.currentTrack.info.displayHeight*this.currentTrack.info.width;y>0&&g>0&&(y>g?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*y/g):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*g/y))}if(this.currentTrack.codecId===Yt.avc)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===Yt.hevc)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(m===Yt.vp8)this.currentTrack.info.codec="vp8";else if(m===Yt.vp9)this.currentTrack.info.codec="vp9";else if(m===Yt.av1)this.currentTrack.info.codec="av1";else if(m===Yt.prores){const y=this.currentTrack.codecPrivate?Ut.decode(this.currentTrack.codecPrivate):"";Nf.includes(y)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=y)}const p=this.currentTrack;this.currentTrack.trackBacking=new qS(p),this.currentSegment.tracks.push(this.currentTrack)}else if(this.currentTrack.info.type==="audio"){m===Yt.aac?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===Yt.mp3?this.currentTrack.info.codec="mp3":m===Yt.opus?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=Co):m===Yt.vorbis?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):m===Yt.flac?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):m===Yt.ac3?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):m===Yt.eac3?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId==="A_PCM/INT/LIT"?this.currentTrack.info.bitDepth===8?this.currentTrack.info.codec="pcm-u8":this.currentTrack.info.bitDepth===16?this.currentTrack.info.codec="pcm-s16":this.currentTrack.info.bitDepth===24?this.currentTrack.info.codec="pcm-s24":this.currentTrack.info.bitDepth===32&&(this.currentTrack.info.codec="pcm-s32"):this.currentTrack.codecId==="A_PCM/INT/BIG"?this.currentTrack.info.bitDepth===8?this.currentTrack.info.codec="pcm-u8":this.currentTrack.info.bitDepth===16?this.currentTrack.info.codec="pcm-s16be":this.currentTrack.info.bitDepth===24?this.currentTrack.info.codec="pcm-s24be":this.currentTrack.info.bitDepth===32&&(this.currentTrack.info.codec="pcm-s32be"):this.currentTrack.codecId==="A_PCM/FLOAT/IEEE"&&(this.currentTrack.info.bitDepth===32?this.currentTrack.info.codec="pcm-f32":this.currentTrack.info.bitDepth===64&&(this.currentTrack.info.codec="pcm-f64"));const p=this.currentTrack;this.currentTrack.trackBacking=new HS(p),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null}break;case K.TrackNumber:{if(!this.currentTrack)break;this.currentTrack.id=we(n,u)}break;case K.TrackType:{if(!this.currentTrack)break;const d=we(n,u);d===1?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:null,alphaMode:!1,proresFormat:null}:d===2&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null})}break;case K.FlagEnabled:{if(!this.currentTrack)break;we(n,u)||(this.currentTrack=null)}break;case K.FlagDefault:{if(!this.currentTrack)break;this.currentTrack.disposition.default=!!we(n,u)}break;case K.FlagForced:{if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!we(n,u)}break;case K.FlagOriginal:{if(!this.currentTrack)break;this.currentTrack.disposition.original=!!we(n,u)}break;case K.FlagHearingImpaired:{if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!we(n,u)}break;case K.FlagVisualImpaired:{if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!we(n,u)}break;case K.FlagCommentary:{if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!we(n,u)}break;case K.CodecID:{if(!this.currentTrack)break;this.currentTrack.codecId=rr(n,u)}break;case K.CodecPrivate:{if(!this.currentTrack)break;this.currentTrack.codecPrivate=fe(n,u)}break;case K.DefaultDuration:{if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=we(n,u)}break;case K.Name:{if(!this.currentTrack)break;this.currentTrack.name=ys(n,u)}break;case K.Language:{if(!this.currentTrack||this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=rr(n,u),t0(this.currentTrack.languageCode)||(this.currentTrack.languageCode=At)}break;case K.LanguageBCP47:{if(!this.currentTrack)break;const m=rr(n,u).split("-")[0];m?this.currentTrack.languageCode=m:this.currentTrack.languageCode=At,this.currentTrack.hasLanguageBcp47=!0}break;case K.Video:{if(this.currentTrack?.info?.type!=="video")break;this.readContiguousElements(n.slice(c,u))}break;case K.PixelWidth:{if(this.currentTrack?.info?.type!=="video")break;this.currentTrack.info.width=we(n,u)}break;case K.PixelHeight:{if(this.currentTrack?.info?.type!=="video")break;this.currentTrack.info.height=we(n,u)}break;case K.DisplayWidth:{if(this.currentTrack?.info?.type!=="video")break;this.currentTrack.info.displayWidth=we(n,u)}break;case K.DisplayHeight:{if(this.currentTrack?.info?.type!=="video")break;this.currentTrack.info.displayHeight=we(n,u)}break;case K.DisplayUnit:{if(this.currentTrack?.info?.type!=="video")break;this.currentTrack.info.displayUnit=we(n,u)}break;case K.AlphaMode:{if(this.currentTrack?.info?.type!=="video")break;this.currentTrack.info.alphaMode=we(n,u)===1}break;case K.Colour:{if(this.currentTrack?.info?.type!=="video")break;this.currentTrack.info.colorSpace={},this.readContiguousElements(n.slice(c,u))}break;case K.MatrixCoefficients:{if(this.currentTrack?.info?.type!=="video"||!this.currentTrack.info.colorSpace)break;const d=we(n,u),m=go[d]??null;this.currentTrack.info.colorSpace.matrix=m}break;case K.Range:{if(this.currentTrack?.info?.type!=="video"||!this.currentTrack.info.colorSpace)break;this.currentTrack.info.colorSpace.fullRange=we(n,u)===2}break;case K.TransferCharacteristics:{if(this.currentTrack?.info?.type!=="video"||!this.currentTrack.info.colorSpace)break;const d=we(n,u),m=po[d]??null;this.currentTrack.info.colorSpace.transfer=m}break;case K.Primaries:{if(this.currentTrack?.info?.type!=="video"||!this.currentTrack.info.colorSpace)break;const d=we(n,u),m=mo[d]??null;this.currentTrack.info.colorSpace.primaries=m}break;case K.Projection:{if(this.currentTrack?.info?.type!=="video")break;this.readContiguousElements(n.slice(c,u))}break;case K.ProjectionPoseRoll:{if(this.currentTrack?.info?.type!=="video")break;const m=-lf(n,u);try{this.currentTrack.info.rotation=Yg(m)}catch{}}break;case K.Audio:{if(this.currentTrack?.info?.type!=="audio")break;this.readContiguousElements(n.slice(c,u))}break;case K.SamplingFrequency:{if(this.currentTrack?.info?.type!=="audio")break;this.currentTrack.info.sampleRate=lf(n,u)}break;case K.Channels:{if(this.currentTrack?.info?.type!=="audio")break;this.currentTrack.info.numberOfChannels=we(n,u)}break;case K.BitDepth:{if(this.currentTrack?.info?.type!=="audio")break;this.currentTrack.info.bitDepth=we(n,u)}break;case K.CuePoint:{if(!this.currentSegment)break;this.readContiguousElements(n.slice(c,u)),this.currentCueTime=null}break;case K.CueTime:this.currentCueTime=we(n,u);break;case K.CueTrackPositions:{if(this.currentCueTime===null)break;x(this.currentSegment);const d={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(d),this.readContiguousElements(n.slice(c,u)),(d.trackId===-1||d.clusterPosition===-1)&&this.currentSegment.cuePoints.pop()}break;case K.CueTrack:{const d=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!d)break;d.trackId=we(n,u)}break;case K.CueClusterPosition:{const d=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!d)break;x(this.currentSegment),d.clusterPosition=this.currentSegment.dataStartPos+we(n,u)}break;case K.Timestamp:{if(!this.currentCluster)break;this.currentCluster.timestamp=we(n,u)}break;case K.SimpleBlock:{if(!this.currentCluster)break;const d=_s(n);if(d===null)break;const m=this.getTrackDataInCluster(this.currentCluster,d);if(!m)break;const p=Ef(n),y=oe(n),g=y>>1&3;let k=!!(y&128);m.track.info?.type==="audio"&&m.track.info.codec&&(k=!0);const T=fe(n,u-(n.filePos-c)),w=m.track.decodingInstructions.length>0;m.blocks.push({timestamp:p,duration:0,isKeyFrame:k,data:T,lacing:g,decoded:!w,postProcessed:!1,mainAdditional:null})}break;case K.BlockGroup:{if(!this.currentCluster)break;this.readContiguousElements(n.slice(c,u)),this.currentBlock=null}break;case K.Block:{if(!this.currentCluster)break;const d=_s(n);if(d===null)break;const m=this.getTrackDataInCluster(this.currentCluster,d);if(!m)break;const p=Ef(n),g=oe(n)>>1&3,k=fe(n,u-(n.filePos-c)),T=m.track.decodingInstructions.length>0;this.currentBlock={timestamp:p,duration:0,isKeyFrame:!0,data:k,lacing:g,decoded:!T,postProcessed:!1,mainAdditional:null},m.blocks.push(this.currentBlock)}break;case K.BlockAdditions:this.readContiguousElements(n.slice(c,u));break;case K.BlockMore:{if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(n.slice(c,u)),this.currentBlockAdditional.data&&this.currentBlockAdditional.addId===1&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null}break;case K.BlockAdditional:{if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=fe(n,u)}break;case K.BlockAddID:{if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=we(n,u)}break;case K.BlockDuration:{if(!this.currentBlock)break;this.currentBlock.duration=we(n,u)}break;case K.ReferenceBlock:{if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1}break;case K.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(n.slice(c,u));break;case K.Targets:this.readContiguousElements(n.slice(c,u));break;case K.TargetTypeValue:we(n,u)!==50&&(this.currentTagTargetIsMovie=!1);break;case K.TagTrackUID:case K.TagEditionUID:case K.TagChapterUID:case K.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case K.SimpleTag:{if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(n.slice(c,u))}break;case K.TagName:this.currentSimpleTagName=ys(n,u);break;case K.TagString:{if(!this.currentSimpleTagName)break;const d=ys(n,u);this.processTagValue(this.currentSimpleTagName,d)}break;case K.TagBinary:{if(!this.currentSimpleTagName)break;const d=fe(n,u);this.processTagValue(this.currentSimpleTagName,d)}break;case K.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(n.slice(c,u));const d=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(d.raw??={},d.raw[this.currentAttachedFile.fileUid.toString()]=new aS(this.currentAttachedFile.fileData,this.currentAttachedFile.fileMediaType??void 0,this.currentAttachedFile.fileName??void 0,this.currentAttachedFile.fileDescription??void 0)),this.currentAttachedFile.fileMediaType?.startsWith("image/")&&this.currentAttachedFile.fileData){const m=this.currentAttachedFile.fileName;let p="unknown";if(m){const y=m.toLowerCase();y.startsWith("cover.")?p="coverFront":y.startsWith("back.")&&(p="coverBack")}d.images??=[],d.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:p,name:this.currentAttachedFile.fileName??void 0,description:this.currentAttachedFile.fileDescription??void 0})}this.currentAttachedFile=null}break;case K.FileUID:{if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=NS(n,u)}break;case K.FileName:{if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=ys(n,u)}break;case K.FileMediaType:{if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=rr(n,u)}break;case K.FileData:{if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=fe(n,u)}break;case K.FileDescription:{if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=ys(n,u)}break;case K.ContentEncodings:{if(!this.currentTrack)break;this.readContiguousElements(n.slice(c,u)),this.currentTrack.decodingInstructions.sort((d,m)=>m.order-d.order)}break;case K.ContentEncoding:this.currentDecodingInstruction={order:0,scope:So.Block,data:null},this.readContiguousElements(n.slice(c,u)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case K.ContentEncodingOrder:{if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=we(n,u)}break;case K.ContentEncodingScope:{if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=we(n,u)}break;case K.ContentCompression:{if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:Ps.Zlib,settings:null},this.readContiguousElements(n.slice(c,u))}break;case K.ContentCompAlgo:{if(this.currentDecodingInstruction?.data?.type!=="decompress")break;this.currentDecodingInstruction.data.algorithm=we(n,u)}break;case K.ContentCompSettings:{if(this.currentDecodingInstruction?.data?.type!=="decompress")break;this.currentDecodingInstruction.data.settings=fe(n,u)}break;case K.ContentEncryption:{if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}break}return n.filePos=c+u,!0}decodeBlockData(n,i){x(n.decodingInstructions.length>0);let r=i;for(const o of n.decodingInstructions)switch(x(o.data),o.data.type){case"decompress":switch(o.data.algorithm){case Ps.HeaderStripping:if(o.data.settings&&o.data.settings.length>0){const u=o.data.settings,c=new Uint8Array(u.length+r.length);c.set(u,0),c.set(r,u.length),r=c}break}break}return r}processTagValue(n,i){if(!this.currentSegment?.metadataTags)return;const r=this.currentSegment.metadataTags;if(r.raw??={},r.raw[n]??=i,typeof i=="string")switch(n.toLowerCase()){case"title":r.title??=i;break;case"description":r.description??=i;break;case"artist":r.artist??=i;break;case"album":r.album??=i;break;case"album_artist":r.albumArtist??=i;break;case"genre":r.genre??=i;break;case"comment":r.comment??=i;break;case"lyrics":r.lyrics??=i;break;case"date":{const o=new Date(i);Number.isNaN(o.getTime())||(r.date??=o)}break;case"track_number":case"part_number":{const o=i.split("/"),u=Number.parseInt(o[0],10),c=o[1]&&Number.parseInt(o[1],10);Number.isInteger(u)&&u>0&&(r.trackNumber??=u),c&&Number.isInteger(c)&&c>0&&(r.tracksTotal??=c)}break;case"disc_number":case"disc":{const o=i.split("/"),u=Number.parseInt(o[0],10),c=o[1]&&Number.parseInt(o[1],10);Number.isInteger(u)&&u>0&&(r.discNumber??=u),c&&Number.isInteger(c)&&c>0&&(r.discsTotal??=c)}break}}}class N0{constructor(n){this.internalTrack=n,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const n=this.internalTrack.demuxer,i=this.internalTrack.trackBacking.getType();let r=0;for(const o of n.segments)for(const u of o.tracks)if(u.trackBacking.getType()===i&&r++,u===this.internalTrack)break;return r}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const n=this.internalTrack.segment;if(n.duration<=0)return null;let i=n.duration/n.timestampFactor;const r=await this.getFirstPacket({metadataOnly:!0});return i+=r?.timestamp??0,i}async getLiveRefreshInterval(){return null}async getFirstPacket(n){return this.performClusterLookup(null,i=>i.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,n)}intoTimescale(n){return Os(n*this.internalTrack.segment.timestampFactor)}async getPacket(n,i){const r=this.intoTimescale(n);return this.performClusterLookup(null,o=>{const u=o.trackData.get(this.internalTrack.id);if(!u)return{blockIndex:-1,correctBlockFound:!1};const c=Oe(u.presentationTimestamps,r,p=>p.timestamp),d=c!==-1?u.presentationTimestamps[c].blockIndex:-1,m=c!==-1&&r{if(o===r.cluster){const u=o.trackData.get(this.internalTrack.id);if(r.blockIndex+1{const u=o.trackData.get(this.internalTrack.id);if(!u)return{blockIndex:-1,correctBlockFound:!1};const c=If(u.presentationTimestamps,p=>u.blocks[p.blockIndex].isKeyFrame&&p.timestamp<=r),d=c!==-1?u.presentationTimestamps[c].blockIndex:-1,m=c!==-1&&r{if(o===r.cluster){const c=o.trackData.get(this.internalTrack.id).blocks.findIndex((d,m)=>d.isKeyFrame&&m>r.blockIndex);if(c!==-1)return{blockIndex:c,correctBlockFound:!0}}else{const u=o.trackData.get(this.internalTrack.id);if(u&&u.firstKeyFrameTimestamp!==null){const c=u.blocks.findIndex(d=>d.isKeyFrame);return x(c!==-1),{blockIndex:c,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,i)}async fetchPacketInCluster(n,i,r){if(i===-1)return null;const u=n.trackData.get(this.internalTrack.id).blocks[i];if(x(u),u.decoded||(u.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,u.data),u.decoded=!0),!u.postProcessed){if(this.internalTrack.info?.codec==="prores"&&!(u.data.length>=8&&u.data[4]===105&&u.data[5]===99&&u.data[6]===112&&u.data[7]===102)){const k=new Uint8Array(u.data.length+8);Re(k).setUint32(0,k.length,!1),k[4]=105,k[5]=99,k[6]=112,k[7]=102,k.set(u.data,8),u.data=k}u.postProcessed=!0}const c=r.metadataOnly?Wt:u.data,d=u.timestamp/this.internalTrack.segment.timestampFactor,m=u.duration/this.internalTrack.segment.timestampFactor,p={};u.mainAdditional&&this.internalTrack.info?.type==="video"&&this.internalTrack.info.alphaMode&&(p.alpha=r.metadataOnly?Wt:u.mainAdditional,p.alphaByteLength=u.mainAdditional.byteLength);const y=new ht(c,u.isKeyFrame?"key":"delta",d,m,n.dataStartPos+i,u.data.byteLength,p);return this.packetToClusterLocation.set(y,{cluster:n,blockIndex:i}),y}async performClusterLookup(n,i,r,o,u){const{demuxer:c,segment:d}=this.internalTrack;let m=null,p=null,y=-1;if(n){const{blockIndex:_,correctBlockFound:C}=i(n);if(C)return this.fetchPacketInCluster(n,_,u);_!==-1&&(p=n,y=_)}const g=Oe(this.internalTrack.cuePoints,r,_=>_.time),k=g!==-1?this.internalTrack.cuePoints[g]:null,T=Oe(this.internalTrack.clusterPositionCache,r,_=>_.startTimestamp),w=T!==-1?this.internalTrack.clusterPositionCache[T]:null,S=Math.max(k?.clusterPosition??0,w?.elementStartPos??0)||null;let E;for(n?S===null||n.elementStartPos>=S?(E=n.elementEndPos,m=n):E=S:E=S??d.clusterSeekStartPos;d.elementEndPos===null||E<=d.elementEndPos-un;){if(m){const L=m.trackData.get(this.internalTrack.id);if(L&&L.startTimestamp>o)break}let _=c.reader.requestSliceRange(E,un,Zn);if(_ instanceof Promise&&(_=await _),!_)break;const C=E,B=Qn(_);if(!B||!Ns.includes(B.id)&&B.id!==K.Void){const L=await z0(c.reader,C,Ns,Math.min(d.elementEndPos??1/0,C+M0));if(L){E=L;continue}else break}const P=B.id;let D=B.size;const z=_.filePos;if(P===K.Cluster){m=await c.readCluster(C,d),D=m.elementEndPos-z;const{blockIndex:L,correctBlockFound:I}=i(m);if(I)return this.fetchPacketInCluster(m,L,u);L!==-1&&(p=m,y=L)}D===void 0&&(x(P!==K.Cluster),D=(await Tf(c.reader,z,uo,d.elementEndPos)).pos-z);const H=z+D;if(d.elementEndPos===null){let L=c.reader.requestSliceRange(H,un,Zn);if(L instanceof Promise&&(L=await L),!L)break;if(jf(L)===K.Segment){d.elementEndPos=H;break}}E=H}if(k&&(!p||p.elementStartPos{let n=null;(this.internalTrack.info.codec==="vp9"||this.internalTrack.info.codec==="av1"||this.internalTrack.info.codec==="avc"&&!this.internalTrack.info.codecDescription||this.internalTrack.info.codec==="hevc"&&!this.internalTrack.info.codecDescription)&&(n=await this.getFirstPacket({}));const r={codec:Uf({width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:this.internalTrack.info.codec==="avc"&&n?h0(n.data):null,hevcCodecInfo:this.internalTrack.info.codec==="hevc"&&n?y0(n.data):null,vp9CodecInfo:this.internalTrack.info.codec==="vp9"&&n?k0(n.data):null,av1CodecInfo:this.internalTrack.info.codec==="av1"&&n?S0(n.data):null,proresFormat:this.internalTrack.info.proresFormat}),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace??void 0};return(this.internalTrack.info.width!==this.internalTrack.info.squarePixelWidth||this.internalTrack.info.height!==this.internalTrack.info.squarePixelHeight)&&(r.displayAspectWidth=this.internalTrack.info.squarePixelWidth,r.displayAspectHeight=this.internalTrack.info.squarePixelHeight),r})():null}}class HS extends N0{constructor(n){super(n),this.decoderConfig=null,this.internalTrack=n}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfig??={codec:Ff({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}:null}}const vf=async(l,n,i,r=null)=>{let u=n;for(;i===null||u=oi;){const m=d.filePos,p=ee(d),y=l.fileSize!==null?l.fileSize-u:null,g=qf(p,y);if(g.header&&(!r||g.header.sampleRate===r.sampleRate&&g.header.mpegVersionId===r.mpegVersionId&&g.header.layer===r.layer&&Ms(g.header.channel)===Ms(r.channel)))return{header:g.header,startPos:u};d.filePos=m+g.bytesAdvanced,u=d.filePos}}return null};class LS extends ta{constructor(n){super(n),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new wo,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=n._reader}async readMetadata(){return this.metadataPromise??=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();if(!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new VS(this)]})()}async advanceReader(){if(this.lastLoadedPos===0)for(;;){let d=this.reader.requestSlice(this.lastLoadedPos,fn);if(d instanceof Promise&&(d=await d),!d){this.lastSampleLoaded=!0;return}const m=$n(d);if(!m)break;this.lastLoadedPos=d.filePos+m.size}const n=await vf(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!n){this.lastSampleLoaded=!0;return}const i=n.header;this.lastLoadedPos=n.startPos+i.totalSize-1;const r=u0(i.mpegVersionId,i.channel);let o=this.reader.requestSlice(n.startPos+r,4);if(o instanceof Promise&&(o=await o),o){const d=ee(o);if(d===o0||d===c0){if(!this.xingData){let p=this.reader.requestSlice(n.startPos+r+4,12);if(p instanceof Promise&&(p=await p),p){const y=fe(p,12),g=Re(y),k=g.getUint32(0,!1);this.xingData={frameCount:k&ko.FrameCount?g.getUint32(4,!1):null,fileSize:k&ko.FileSize?g.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=i,this.firstFrameHeaderPos=n.startPos);const u=i.audioSamplesInFrame/this.firstFrameHeader.sampleRate,c={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:u,dataStart:n.startPos,dataSize:i.totalSize};this.loadedSamples.push(c),this.nextTimestampInSamples+=i.audioSamplesInFrame}async getMimeType(){return"audio/mpeg"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const n=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let i=0,r=!1;for(;;){let o=this.reader.requestSlice(i,fn);if(o instanceof Promise&&(o=await o),!o)break;const u=$n(o);if(!u)break;r=!0;let c=this.reader.requestSlice(o.filePos,u.size);if(c instanceof Promise&&(c=await c),!c)break;Io(c,u,this.metadataTags),i=o.filePos+u.size}if(!r&&this.reader.fileSize!==null&&this.reader.fileSize>=ho){let o=this.reader.requestSlice(this.reader.fileSize-ho,ho);o instanceof Promise&&(o=await o),x(o),Je(o,3)==="TAG"&&fT(o,this.metadataTags)}return this.metadataTags}finally{n()}}}class VS{constructor(n){this.demuxer=n}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return x(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const n=this.demuxer;if(x(n.firstFrameHeader!==null),x(n.firstFrameHeaderPos!==null),n.xingData){if(n.xingData.frameCount!==null)return n.xingData.frameCount*n.firstFrameHeader.audioSamplesInFrame/n.firstFrameHeader.sampleRate}else if(n.reader.fileSize!==null){const i=oS(n.firstFrameHeader.lowSamplingFrequency,n.firstFrameHeader.layer,n.firstFrameHeader.bitrate,n.firstFrameHeader.sampleRate),r=(n.reader.fileSize-n.firstFrameHeaderPos)/i;return Math.round(r)*n.firstFrameHeader.audioSamplesInFrame/n.firstFrameHeader.sampleRate}return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return At}getCodec(){return"mp3"}getInternalCodecId(){return null}getNumberOfChannels(){return x(this.demuxer.firstFrameHeader),Ms(this.demuxer.firstFrameHeader.channel)}getSampleRate(){return x(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}getDisposition(){return{...ea}}async getDecoderConfig(){return x(this.demuxer.firstFrameHeader),{codec:"mp3",numberOfChannels:Ms(this.demuxer.firstFrameHeader.channel),sampleRate:this.demuxer.firstFrameHeader.sampleRate}}async getPacketAtIndex(n,i){if(n===-1)return null;const r=this.demuxer.loadedSamples[n];if(!r)return null;let o;if(i.metadataOnly)o=Wt;else{let u=this.demuxer.reader.requestSlice(r.dataStart,r.dataSize);if(u instanceof Promise&&(u=await u),!u)return null;o=fe(u,r.dataSize)}return new ht(o,"key",r.timestamp,r.duration,n,r.dataSize)}getFirstPacket(n){return this.getPacketAtIndex(0,n)}async getNextPacket(n,i){const r=await this.demuxer.readingMutex.acquire();try{const o=Fs(this.demuxer.loadedSamples,n.timestamp,c=>c.timestamp);if(o===-1)throw new Error("Packet was not created from this track.");const u=o+1;for(;u>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(u,i)}finally{r()}}async getPacket(n,i){const r=await this.demuxer.readingMutex.acquire();try{for(;;){const o=Oe(this.demuxer.loadedSamples,n,u=>u.timestamp);if(o===-1&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(o,i);if(o>=0&&o+1>>0&4294967295}const XS=l=>{const n=Re(l),i=n.getUint32(22,!0);n.setUint32(22,0,!0);let r=0;for(let o=0;o>>24^u])>>>0}return n.setUint32(22,i,!0),r},GS=(l,n,i)=>{let r=0,o=null;if(l.length>0)if(n.codec==="vorbis"){x(n.vorbisInfo);const u=n.vorbisInfo.modeBlockflags.length,d=(1<>1;if(m>=n.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let p=i;const y=n.vorbisInfo.modeBlockflags[m];if(o=n.vorbisInfo.blocksizes[y],y===1){const g=(d|1)+1,k=l[0]&g?1:0;p=n.vorbisInfo.blocksizes[k]}r=p!==null?p+o>>2:0}else n.codec==="opus"&&(r=bS(l).durationInSamples);return{durationInSamples:r,vorbisBlockSize:o}},KS=l=>{let n="audio/ogg";if(l.codecStrings){const i=[...new Set(l.codecStrings)];n+=`; codecs="${i.join(", ")}"`}return n};const ri=27,hr=282,YS=hr+65025,Bs=l=>{const n=l.filePos;if(or(l)!==U0)return null;l.skip(1);const r=oe(l),o=cT(l),u=or(l),c=or(l),d=or(l),m=oe(l),p=new Uint8Array(m);for(let T=0;TT+w,0),k=y+g;return{headerStartPos:n,totalSize:k,dataStartPos:n+y,dataSize:g,headerType:r,granulePosition:o,serialNumber:u,sequenceNumber:c,checksum:d,lacingValues:p}},QS=(l,n)=>{for(;l.filePos>>8&255,u=i>>>16&255,c=i>>>24&255,d=79;if(!(r!==d&&o!==d&&u!==d&&c!==d)){if(l.skip(-4),i===U0)return!0;l.skip(1)}}return!1};class ZS extends ta{constructor(n){super(n),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=n._reader}async readMetadata(){return this.metadataPromise??=(async()=>{let n=0;for(;;){let i=this.reader.requestSliceRange(n,ri,hr);if(i instanceof Promise&&(i=await i),!i)break;const r=Bs(i);if(!r||!!!(r.headerType&2))break;this.bitstreams.push({serialNumber:r.serialNumber,bosPage:r,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),n=r.headerStartPos+r.totalSize}for(const i of this.bitstreams){const r=await this.readPacket(i.bosPage,0);r&&(r.data.byteLength>=7&&r.data[0]===1&&r.data[1]===118&&r.data[2]===111&&r.data[3]===114&&r.data[4]===98&&r.data[5]===105&&r.data[6]===115?await this.readVorbisMetadata(r,i):r.data.byteLength>=8&&r.data[0]===79&&r.data[1]===112&&r.data[2]===117&&r.data[3]===115&&r.data[4]===72&&r.data[5]===101&&r.data[6]===97&&r.data[7]===100&&await this.readOpusMetadata(r,i),i.codecInfo.codec!==null&&this.trackBackings.push(new WS(i,this)))}})()}async readVorbisMetadata(n,i){let r=await this.findNextPacketStart(n);if(!r)return;const o=await this.readPacket(r.startPage,r.startSegmentIndex);if(!o||(r=await this.findNextPacketStart(o),!r))return;const u=await this.readPacket(r.startPage,r.startSegmentIndex);if(!u||o.data[0]!==3||u.data[0]!==5)return;const c=[],d=g=>{for(;c.push(Math.min(255,g)),!(g<255);)g-=255};d(n.data.length),d(o.data.length);const m=new Uint8Array(1+c.length+n.data.length+o.data.length+u.data.length);m[0]=2,m.set(c,1),m.set(n.data,1+c.length),m.set(o.data,1+c.length+n.data.length),m.set(u.data,1+c.length+n.data.length+o.data.length),i.codecInfo.codec="vorbis",i.description=m,i.lastMetadataPacket=u;const p=Re(n.data);i.numberOfChannels=p.getUint8(11),i.sampleRate=p.getUint32(12,!0);const y=p.getUint8(28);i.codecInfo.vorbisInfo={blocksizes:[1<<(y&15),1<<(y>>4)],modeBlockflags:SS(u.data).modeBlockflags},kf(o.data.subarray(7),this.metadataTags)}async readOpusMetadata(n,i){const r=await this.findNextPacketStart(n);if(!r)return;const o=await this.readPacket(r.startPage,r.startSegmentIndex);if(!o)return;i.codecInfo.codec="opus",i.description=n.data,i.lastMetadataPacket=o;const u=yS(n.data);i.numberOfChannels=u.outputChannelCount,i.sampleRate=Co,i.codecInfo.opusInfo={preSkip:u.preSkip},kf(o.data.subarray(8),this.metadataTags)}async readPacket(n,i){x(ig+k.length,0);if(m===0)return null;const p=new Uint8Array(m);let y=0;for(let g=0;gi.getDecoderConfig().then(r=>r?.codec??null)));return KS({codecStrings:n.filter(Boolean)})}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}class WS{constructor(n,i){this.bitstream=n,this.demuxer=i,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new wo,this.internalSampleRate=n.codecInfo.codec==="opus"?Co:n.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const n=this.demuxer.trackBackings.findIndex(i=>i.bitstream===this.bitstream);return x(n!==-1),n+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}async getDecoderConfig(){return x(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:this.bitstream.description??void 0}}getName(){return null}getLanguageCode(){return At}getDisposition(){return{...ea,primary:!1}}granulePositionToTimestampInSamples(n){return this.bitstream.codecInfo.codec==="opus"?(x(this.bitstream.codecInfo.opusInfo),n-this.bitstream.codecInfo.opusInfo.preSkip):n}createEncodedPacketFromOggPacket(n,i,r){if(!n)return null;const{durationInSamples:o,vorbisBlockSize:u}=GS(n.data,this.bitstream.codecInfo,i.vorbisLastBlocksize),c=new ht(r.metadataOnly?Wt:n.data,"key",Math.max(0,i.timestampInSamples)/this.internalSampleRate,o/this.internalSampleRate,n.endPage.headerStartPos+n.endSegmentIndex,n.data.byteLength);return this.encodedPacketToMetadata.set(c,{packet:n,timestampInSamples:i.timestampInSamples,durationInSamples:o,vorbisLastBlockSize:i.vorbisLastBlocksize,vorbisBlockSize:u}),c}async getFirstPacket(n){x(this.bitstream.lastMetadataPacket);const i=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!i)return null;let r=0;this.bitstream.codecInfo.codec==="opus"&&(x(this.bitstream.codecInfo.opusInfo),r-=this.bitstream.codecInfo.opusInfo.preSkip);const o=await this.demuxer.readPacket(i.startPage,i.startSegmentIndex);return this.createEncodedPacketFromOggPacket(o,{timestampInSamples:r,vorbisLastBlocksize:null},n)}async getNextPacket(n,i){const r=this.encodedPacketToMetadata.get(n);if(!r)throw new Error("Packet was not created from this track.");const o=await this.demuxer.findNextPacketStart(r.packet);if(!o)return null;const u=r.timestampInSamples+r.durationInSamples,c=await this.demuxer.readPacket(o.startPage,o.startSegmentIndex);return this.createEncodedPacketFromOggPacket(c,{timestampInSamples:u,vorbisLastBlocksize:r.vorbisBlockSize},i)}async getPacket(n,i){if(this.demuxer.reader.fileSize===null)return this.getPacketSequential(n,i);const r=Os(n*this.internalSampleRate);if(r===0)return this.getFirstPacket(i);if(r<0)return null;x(this.bitstream.lastMetadataPacket);const o=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!o)return null;let u=o.startPage,c=this.demuxer.reader.fileSize;const d=[u];e:for(;u.headerStartPos+u.totalSizer?c=I.headerStartPos:(u=I,d.push(I));continue e}}let m=o.startPage;for(const C of d){if(C.granulePosition===u.granulePosition)break;(!m||C.headerStartPos>m.headerStartPos)&&(m=C)}let p=m;const y=[p];for(;!(p.serialNumber===this.bitstream.serialNumber&&p.granulePosition===u.granulePosition);){const C=p.headerStartPos+p.totalSize;let B=this.demuxer.reader.requestSliceRange(C,ri,hr);B instanceof Promise&&(B=await B),x(B);const P=Bs(B);x(P),p=P,p.serialNumber===this.bitstream.serialNumber&&y.push(p)}x(p.granulePosition!==-1);let g=null,k,T,w=p,S=0;if(p.headerStartPos===o.startPage.headerStartPos)k=this.granulePositionToTimestampInSamples(0),T=!0,g=0;else{k=0,T=!1;for(let P=p.lacingValues.length-1;P>=0;P--)if(p.lacingValues[P]<255){g=P+1;break}if(g===null)throw new Error("Invalid page with granule position: no packets end on this page.");S=g-1;const C={data:Wt,endPage:w,endSegmentIndex:S};if(await this.demuxer.findNextPacketStart(C)){const P=kg(y,p,g);x(P);const D=yg(y,P.page,P.segmentIndex);D&&(p=D.page,g=D.segmentIndex)}else for(;;){const P=kg(y,p,g);if(!P)break;const D=yg(y,P.page,P.segmentIndex);if(!D)break;if(p=D.page,g=D.segmentIndex,P.page.headerStartPos!==w.headerStartPos){w=P.page,S=P.segmentIndex;break}}}let E=null,_=null;for(;p!==null;){x(g!==null);const C=await this.demuxer.readPacket(p,g);if(!C)break;if(!(p.headerStartPos===o.startPage.headerStartPos&&gr||Math.max(z.timestampInSamples,0)===r))break}const P=await this.demuxer.findNextPacketStart(C);if(!P)break;p=P.startPage,g=P.startSegmentIndex}return E}async getPacketSequential(n,i){const r=await this.sequentialScanMutex.acquire();try{const o=Os(n*this.internalSampleRate);n=o/this.internalSampleRate;const u=Oe(this.sequentialScanCache,o,m=>m.timestampInSamples);let c;if(u!==-1){const m=this.sequentialScanCache[u];c=this.createEncodedPacketFromOggPacket(m.packet,{timestampInSamples:m.timestampInSamples,vorbisLastBlocksize:m.vorbisLastBlockSize},i)}else c=await this.getFirstPacket(i);let d=0;for(;c&&c.timestampn)break;if(c=m,d++,d===100){d=0;const p=this.encodedPacketToMetadata.get(c);x(p),this.sequentialScanCache.length>0&&x(Zt(this.sequentialScanCache).timestampInSamples<=p.timestampInSamples),this.sequentialScanCache.push(p)}}return c}finally{r()}}getKeyPacket(n,i){return this.getPacket(n,i)}getNextKeyPacket(n,i){return this.getNextPacket(n,i)}}const yg=(l,n,i)=>{let r=n,o=i;e:for(;;){for(o--,o;o>=0;o--)if(r.lacingValues[o]<255){o++;break e}if(x(o===-1),!(r.headerType&1)){o=0;break}const c=$g(l,d=>d.headerStartPos{if(i>0)return{page:n,segmentIndex:i-1};const r=$g(l,o=>o.headerStartPos{let n=this.reader.requestSlice(0,12);n instanceof Promise&&(n=await n),x(n);const i=Je(n,4),r=i!=="RIFX",o=i==="RF64",u=Ia(n,r);let c=o?this.reader.fileSize:Math.min(u+8,this.reader.fileSize??1/0);if(Je(n,4)!=="WAVE")throw new Error("Invalid WAVE file - wrong format");let m=0,p=null,y=n.filePos;for(;c===null||y=18&&u!==357){const y=vs(o,r),g=i-18;if(Math.min(g,y)>=22&&u===_t.EXTENSIBLE){o.skip(6);const T=fe(o,16);u=T[0]|T[1]<<8}}if((u===_t.MULAW||u===_t.ALAW)&&(p=8),u!==_t.PCM&&u!==_t.IEEE_FLOAT&&u!==_t.ALAW&&u!==_t.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${u}). Only integer/float PCM, A-law, and μ-law are supported.`);if(u===_t.PCM&&![8,16,24,32].includes(p))throw new Error(`Unsupported WAVE PCM bit depth (${p}). Only 8, 16, 24, and 32 bits are supported.`);if(u===_t.IEEE_FLOAT&&![32,64].includes(p))throw new Error(`Unsupported WAVE float bit depth (${p}). Only 32 and 64 bits are supported.`);this.audioInfo={format:u,numberOfChannels:c,sampleRate:d,sampleSizeInBytes:Math.ceil(p/8),blockSizeInBytes:m}}async parseListChunk(n,i,r){let o=this.reader.requestSlice(n,i);if(o instanceof Promise&&(o=await o),!o)return;const u=Je(o,4);if(u!=="INFO"&&u!=="INF0")return;let c=o.filePos;for(;c<=n+i-8;){o.filePos=c;const d=Je(o,4),m=Ia(o,r),p=fe(o,m);let y=0;for(let k=0;k0&&(this.metadataTags.trackNumber??=T),w&&Number.isInteger(w)&&w>0&&(this.metadataTags.tracksTotal??=w)}break;case"ICRD":case"IDIT":{const k=new Date(g);Number.isNaN(k.getTime())||(this.metadataTags.date??=k)}break;case"YEAR":{const k=Number.parseInt(g,10);Number.isInteger(k)&&k>0&&(this.metadataTags.date??=new Date(k,0,1))}break;case"IGNR":case"GENR":this.metadataTags.genre??=g;break;case"ICMT":case"CMNT":case"COMM":this.metadataTags.comment??=g;break}c+=8+m+(m&1)}}async parseId3Chunk(n,i){let r=this.reader.requestSlice(n,i);if(r instanceof Promise&&(r=await r),!r)return;const o=$n(r);if(o){const u=i-fn;if(o.size=Math.min(o.size,u),o.size>0){const c=r.slice(n+fn,o.size);Io(c,o,this.metadataTags)}}}getCodec(){if(x(this.audioInfo),this.audioInfo.format===_t.MULAW)return"ulaw";if(this.audioInfo.format===_t.ALAW)return"alaw";if(this.audioInfo.format===_t.PCM){if(this.audioInfo.sampleSizeInBytes===1)return"pcm-u8";if(this.audioInfo.sampleSizeInBytes===2)return"pcm-s16";if(this.audioInfo.sampleSizeInBytes===3)return"pcm-s24";if(this.audioInfo.sampleSizeInBytes===4)return"pcm-s32"}if(this.audioInfo.format===_t.IEEE_FLOAT){if(this.audioInfo.sampleSizeInBytes===4)return"pcm-f32";if(this.audioInfo.sampleSizeInBytes===8)return"pcm-f64"}x(!1)}async getMimeType(){return"audio/wav"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}const Zi=2048;class $S{constructor(n){this.demuxer=n}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return x(this.demuxer.audioInfo),this.demuxer.audioInfo.format}async getDecoderConfig(){const n=this.demuxer.getCodec();return n?(x(this.demuxer.audioInfo),{codec:n,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null}getNumberOfChannels(){return x(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return x(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return x(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return x(this.demuxer.dataSize!==-1),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return At}getDisposition(){return{...ea}}async getPacketAtIndex(n,i){x(n>=0),x(this.demuxer.audioInfo);const r=n*Zi*this.demuxer.audioInfo.blockSizeInBytes;if(r>=this.demuxer.dataSize)return null;const o=Math.min(Zi*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-r);if(this.demuxer.reader.fileSize===null){let m=this.demuxer.reader.requestSlice(this.demuxer.dataStart+r,o);if(m instanceof Promise&&(m=await m),!m)return null}let u;if(i.metadataOnly)u=Wt;else{let m=this.demuxer.reader.requestSlice(this.demuxer.dataStart+r,o);m instanceof Promise&&(m=await m),x(m),u=fe(m,o)}const c=n*Zi/this.demuxer.audioInfo.sampleRate,d=o/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(n,this.demuxer.lastKnownPacketIndex),new ht(u,"key",c,d,n,o)}getFirstPacket(n){return this.getPacketAtIndex(0,n)}async getPacket(n,i){x(this.demuxer.audioInfo);const r=Math.floor(Math.min(n*this.demuxer.audioInfo.sampleRate/Zi,(this.demuxer.dataSize-1)/(Zi*this.demuxer.audioInfo.blockSizeInBytes)));if(r<0)return null;const o=await this.getPacketAtIndex(r,i);if(o)return o;if(r===0)return null;x(this.demuxer.reader.fileSize===null);let u=await this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,i);for(;u;){const c=await this.getNextPacket(u,i);if(!c)break;u=c}return u}getNextPacket(n,i){x(this.demuxer.audioInfo);const r=Math.round(n.timestamp*this.demuxer.audioInfo.sampleRate/Zi);return this.getPacketAtIndex(r+1,i)}getKeyPacket(n,i){return this.getPacket(n,i)}getNextKeyPacket(n,i){return this.getNextPacket(n,i)}}const wf=7,mr=9,Us=l=>{const n=l.filePos,i=fe(l,9),r=new Me(i);if(r.readBits(12)!==4095||(r.skipBits(1),r.readBits(2)!==0))return null;const c=r.readBits(1),d=r.readBits(2)+1,m=r.readBits(4);if(m===15)return null;r.skipBits(1);const p=r.readBits(3);if(p===0)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const y=r.readBits(13);r.skipBits(11);const g=r.readBits(2)+1;if(g!==1)throw new Error("ADTS frames with more than one AAC frame are not supported.");let k=null;return c===1?l.filePos-=2:k=r.readBits(16),{objectType:d,samplingFrequencyIndex:m,channelConfiguration:p,frameLength:y,numberOfAacFrames:g,crcCheck:k,startPos:n}};const To=1024;class e1 extends ta{constructor(n){super(n),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new wo,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=n._reader}async readMetadata(){return this.metadataPromise??=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();x(this.firstFrameHeader),this.trackBackings=[new t1(this)]})()}async advanceReader(){if(this.lastLoadedPos===0)for(;;){let c=this.reader.requestSlice(this.lastLoadedPos,fn);if(c instanceof Promise&&(c=await c),!c){this.lastSampleLoaded=!0;return}const d=$n(c);if(!d)break;this.lastLoadedPos=c.filePos+d.size}let n=this.reader.requestSliceRange(this.lastLoadedPos,wf,mr);if(n instanceof Promise&&(n=await n),!n){this.lastSampleLoaded=!0;return}const i=Us(n);if(!i){this.lastSampleLoaded=!0;return}if(this.reader.fileSize!==null&&i.startPos+i.frameLength>this.reader.fileSize){this.lastSampleLoaded=!0;return}this.firstFrameHeader||(this.firstFrameHeader=i);const r=zs[i.samplingFrequencyIndex];x(r!==void 0);const o=To/r,u={timestamp:this.nextTimestampInSamples/r,duration:o,dataStart:i.startPos,dataSize:i.frameLength};this.loadedSamples.push(u),this.nextTimestampInSamples+=To,this.lastLoadedPos=i.startPos+i.frameLength}async getMimeType(){return"audio/aac"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const n=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let i=0;for(;;){let r=this.reader.requestSlice(i,fn);if(r instanceof Promise&&(r=await r),!r)break;const o=$n(r);if(!o)break;let u=this.reader.requestSlice(r.filePos,o.size);if(u instanceof Promise&&(u=await u),!u)break;Io(u,o,this.metadataTags),i=r.filePos+o.size}return this.metadataTags}finally{n()}}}class t1{constructor(n){this.demuxer=n}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/To}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return At}getCodec(){return"aac"}getInternalCodecId(){return x(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){x(this.demuxer.firstFrameHeader);const n=Mf[this.demuxer.firstFrameHeader.channelConfiguration];return x(n!==void 0),n}getSampleRate(){x(this.demuxer.firstFrameHeader);const n=zs[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return x(n!==void 0),n}getDisposition(){return{...ea}}async getDecoderConfig(){return x(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}}async getPacketAtIndex(n,i){if(n===-1)return null;const r=this.demuxer.loadedSamples[n];if(!r)return null;let o;if(i.metadataOnly)o=Wt;else{let u=this.demuxer.reader.requestSlice(r.dataStart,r.dataSize);if(u instanceof Promise&&(u=await u),!u)return null;o=fe(u,r.dataSize)}return new ht(o,"key",r.timestamp,r.duration,n,r.dataSize)}getFirstPacket(n){return this.getPacketAtIndex(0,n)}async getNextPacket(n,i){const r=await this.demuxer.readingMutex.acquire();try{const o=Fs(this.demuxer.loadedSamples,n.timestamp,c=>c.timestamp);if(o===-1)throw new Error("Packet was not created from this track.");const u=o+1;for(;u>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(u,i)}finally{r()}}async getPacket(n,i){const r=await this.demuxer.readingMutex.acquire();try{for(;;){const o=Oe(this.demuxer.loadedSamples,n,u=>u.timestamp);if(o===-1&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(o,i);if(o>=0&&o+1l===0?null:l===1?192:l>=2&&l<=5?144*2**l:l===6?"uncommon-u8":l===7?"uncommon-u16":l>=8&&l<=15?2**l:null,a1=(l,n)=>{switch(l){case 0:return n;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}},i1=l=>{let n=0;const i=new Me(fe(l,1));for(;i.readBits(1)===1;)n++;if(n===0)return i.readBits(7);const r=[],o=n-1,u=new Me(fe(l,o)),c=8-n-1;for(let m=0;mm|p<{if(n==="uncommon-u16")return at(l)+1;if(n==="uncommon-u8")return oe(l)+1;if(typeof n=="number")return n;Rs(n),x(!1)},s1=(l,n)=>n==="uncommon-u16"?at(l):n==="uncommon-u16-10"?at(l)*10:n==="uncommon-u8"?oe(l):typeof n=="number"?n:null,l1=l=>{let i=0;for(const r of l){i^=r;for(let o=0;o<8;o++)(i&128)!==0?i=i<<1^7:i<<=1,i&=255}return i};class o1 extends ta{constructor(n){super(n),this.loadedSamples=[],this.metadataPromise=null,this.trackBacking=null,this.metadataTags={},this.audioInfo=null,this.lastLoadedPos=null,this.blockingBit=null,this.readingMutex=new wo,this.lastSampleLoaded=!1,this.reader=n._reader}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}async getTrackBackings(){return await this.readMetadata(),x(this.trackBacking),[this.trackBacking]}async getMimeType(){return"audio/flac"}async readMetadata(){return this.metadataPromise??=(async()=>{let n=0;for(;;){let i=this.reader.requestSlice(n,fn);if(i instanceof Promise&&(i=await i),!i){this.lastSampleLoaded=!0;return}const r=$n(i);if(!r)break;let o=this.reader.requestSlice(i.filePos,r.size);o instanceof Promise&&(o=await o),x(o),Io(o,r,this.metadataTags),n=i.filePos+r.size}for(n+=4;this.reader.fileSize===null||ny.end-r)return{num:g.num,blockSize:g.blockSize,sampleRate:g.sampleRate,size:y.end-n,isLastFrame:!0};if(oe(y)===255){const T=y.filePos,w=oe(y),S=this.blockingBit===1?249:248;if(w!==S){y.filePos=T;continue}y.skip(-2);const E=y.filePos-n,_=this.readFlacFrameHeader({slice:y,isFirstPacket:!1});if(!_){y.filePos=T;continue}if(this.blockingBit===0){if(_.num-g.num!==1){y.filePos=T;continue}}else if(_.num-g.num!==g.blockSize){y.filePos=T;continue}return{num:g.num,blockSize:g.blockSize,sampleRate:g.sampleRate,size:E,isLastFrame:!1}}}}readFlacFrameHeader({slice:n,isFirstPacket:i}){const r=n.filePos,o=fe(n,4),u=new Me(o);if(u.readBits(15)!==32764)return null;if(this.blockingBit===null){x(i);const E=u.readBits(1);this.blockingBit=E}else if(this.blockingBit===1){if(x(!i),u.readBits(1)!==1)return null}else if(this.blockingBit===0){if(x(!i),u.readBits(1)!==0)return null}else throw new Error("Invalid blocking bit");const d=n1(u.readBits(4));if(!d)return null;x(this.audioInfo);const m=a1(u.readBits(4),this.audioInfo.sampleRate);if(!m||(u.readBits(4),u.readBits(3),u.readBits(1)!==0))return null;const y=i1(n),g=r1(n,d),k=s1(n,m);if(k===null||k!==this.audioInfo.sampleRate)return null;const T=n.filePos-r,w=oe(n);n.skip(-T),n.skip(-1);const S=l1(fe(n,T));return w!==S?null:{num:y,blockSize:g,sampleRate:k}}async advanceReader(){await this.readMetadata(),x(this.lastLoadedPos!==null),x(this.audioInfo);const n=this.lastLoadedPos,i=await this.readNextFlacFrame({startPos:n,isFirstPacket:this.loadedSamples.length===0});if(!i){this.lastSampleLoaded=!0;return}const r=this.loadedSamples[this.loadedSamples.length-1],u={blockOffset:r?r.blockOffset+r.blockSize:0,blockSize:i.blockSize,byteOffset:n,byteSize:i.size};if(this.lastLoadedPos=this.lastLoadedPos+i.size,this.loadedSamples.push(u),i.isLastFrame){this.lastSampleLoaded=!0;return}}}class c1{constructor(n){this.demuxer=n}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return x(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return x(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return At}getTimeResolution(){return x(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return x(this.demuxer.audioInfo),this.demuxer.audioInfo.totalSamples===0?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getDisposition(){return{...ea}}async getDecoderConfig(){return x(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}}async getPacket(n,i){if(x(this.demuxer.audioInfo),n<0)return null;const r=await this.demuxer.readingMutex.acquire();try{for(;;){const o=Oe(this.demuxer.loadedSamples,n,m=>m.blockOffset/this.demuxer.audioInfo.sampleRate);if(o===-1){await this.demuxer.advanceReader();continue}const u=this.demuxer.loadedSamples[o],c=u.blockOffset/this.demuxer.audioInfo.sampleRate,d=u.blockSize/this.demuxer.audioInfo.sampleRate;if(c+d<=n){if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,i);await this.demuxer.advanceReader();continue}return this.getPacketAtIndex(o,i)}}finally{r()}}async getNextPacket(n,i){const r=await this.demuxer.readingMutex.acquire();try{const o=n.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&o>=this.demuxer.loadedSamples.length)return null;for(;o>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(o,i)}finally{r()}}getKeyPacket(n,i){return this.getPacket(n,i)}getNextKeyPacket(n,i){return this.getNextPacket(n,i)}async getPacketAtIndex(n,i){const r=this.demuxer.loadedSamples[n];if(!r)return null;let o;if(i.metadataOnly)o=Wt;else{let d=this.demuxer.reader.requestSlice(r.byteOffset,r.byteSize);if(d instanceof Promise&&(d=await d),!d)return null;o=fe(d,r.byteSize)}x(this.demuxer.audioInfo);const u=r.blockOffset/this.demuxer.audioInfo.sampleRate,c=r.blockSize/this.demuxer.audioInfo.sampleRate;return new ht(o,"key",u,c,n,r.byteSize)}async getFirstPacket(n){for(;this.demuxer.loadedSamples.length===0&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(0,n)}}const Wn=9e4,Qt=188,u1=l=>{let n="video/MP2T";const i=[...new Set(l.filter(Boolean))];return i.length>0&&(n+=`; codecs="${i.join(", ")}"`),n};const q0="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",bg=new Set;class f1 extends ta{constructor(n){super(n),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5*1024*1024,this.minReferencePointByteDistance=-1,this.reader=n._reader}async readMetadata(){return this.metadataPromise??=(async()=>{const n=Qt+16+1;let i=this.reader.requestSlice(0,n);i instanceof Promise&&(i=await i),x(i);const r=fe(i,n);if(r[0]===71&&r[Qt]===71)this.packetOffset=0,this.packetStride=Qt;else if(r[0]===71&&r[Qt+16]===71)this.packetOffset=0,this.packetStride=Qt+16;else if(r[4]===71&&r[4+Qt+4]===71)this.packetOffset=4,this.packetStride=Qt+4;else throw new Error("Unreachable.");const o=256;this.minReferencePointByteDistance=o*this.packetStride;let u=this.packetOffset,c=null,d=!1,m=!1;for(;;){const p=await this.readPacketHeader(u);if(!p)break;if(p.payloadUnitStartIndicator===0){u+=this.packetStride;continue}if(m&&!this.elementaryStreams.some(S=>S.pid===p.pid)){u+=this.packetStride;continue}const y=await this.readSection(u,!0,!m);if(!y)break;const g=3,k=32;let T=!1;if(!m&&y.pid!==0&&!(y.payload[0]===0&&y.payload[1]===0&&y.payload[2]===1)){const E=new Me(y.payload),_=E.readAlignedByte();E.skipBits(8*_),T=E.readBits(8)===2}if(y.pid===0&&!d){const S=new Me(y.payload),E=S.readAlignedByte();S.skipBits(8*E),S.skipBits(14);const _=S.readBits(10);for(S.skipBits(40);8*(_+g)-S.pos>k;){const C=S.readBits(16);S.skipBits(3);const B=S.readBits(13);if(C!==0){if(c!==null)throw new Error("Only files with a single program are supported.");c=B}}if(c===null)throw new Error("Program Association Table must link to a Program Map Table.");d=!0}else if((y.pid===c||T)&&!m){const S=new Me(y.payload),E=S.readAlignedByte();S.skipBits(8*E),S.skipBits(12);const _=S.readBits(12);S.skipBits(43),S.readBits(13),S.skipBits(6);const C=S.readBits(10);for(S.skipBits(8*C);8*(_+g)-S.pos>k;){const B=S.readBits(8);S.skipBits(3);const P=S.readBits(13);S.skipBits(6);const D=S.readBits(10),z=S.pos+8*D;let H=!1,L=!1;for(;S.posE.pid===y.pid);e:if(S&&!S.initialized){const E=lr(y,!0);if(!E)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${S.pid}`);if(S.firstSection=y,S.canBeTrustedWithKeyPackets=y.randomAccessIndicator===1,this.input._initInput){const B=(await this.input._initInput._getDemuxer()).elementaryStreams.find(P=>P.pid===y.pid&&P.info.codec===S.info.codec);if(B){S.info=B.info,S.initialized=!0;break e}}const _=new Es(S,E);if(S.info.type==="video"){for(;;){const C=_;if(C.suppliedPacket=null,await _.markNextPacket(),S.info.codec==="avc"){if(!_.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(S.info.avcCodecInfo=h0(_.suppliedPacket.data),!S.info.avcCodecInfo)continue;const B=S.info.avcCodecInfo.sequenceParameterSets[0];x(B);const P=p0(B);S.info.width=P.displayWidth,S.info.height=P.displayHeight;const D=P.pixelAspectRatio.num,z=P.pixelAspectRatio.den;D>0&&z>0&&(D>z?(S.info.squarePixelWidth=Math.round(S.info.width*D/z),S.info.squarePixelHeight=S.info.height):(S.info.squarePixelWidth=S.info.width,S.info.squarePixelHeight=Math.round(S.info.height*z/D))),S.info.colorSpace={primaries:mo[P.colourPrimaries],transfer:po[P.transferCharacteristics],matrix:go[P.matrixCoefficients],fullRange:!!P.fullRangeFlag},S.info.reorderSize=P.maxDecFrameBuffering;break}else if(S.info.codec==="hevc"){if(!_.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(S.info.hevcCodecInfo=y0(_.suppliedPacket.data),!S.info.hevcCodecInfo)continue;const P=S.info.hevcCodecInfo.arrays.find(z=>z.nalUnitType===St.SPS_NUT).nalUnits[0];x(P);const D=g0(P);S.info.width=D.displayWidth,S.info.height=D.displayHeight,D.pixelAspectRatio.num>D.pixelAspectRatio.den?(S.info.squarePixelWidth=Math.round(S.info.width*D.pixelAspectRatio.num/D.pixelAspectRatio.den),S.info.squarePixelHeight=S.info.height):(S.info.squarePixelWidth=S.info.width,S.info.squarePixelHeight=Math.round(S.info.height*D.pixelAspectRatio.den/D.pixelAspectRatio.num)),S.info.colorSpace={primaries:mo[D.colourPrimaries],transfer:po[D.transferCharacteristics],matrix:go[D.matrixCoefficients],fullRange:!!D.fullRangeFlag},S.info.reorderSize=D.maxDecFrameBuffering;break}else throw new Error("Unhandled.")}S.info.decoderConfig={codec:Uf({width:S.info.width,height:S.info.height,codec:S.info.codec,codecDescription:null,colorSpace:S.info.colorSpace,avcType:1,avcCodecInfo:S.info.avcCodecInfo,hevcCodecInfo:S.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:S.info.width,codedHeight:S.info.height,colorSpace:S.info.colorSpace},(S.info.width!==S.info.squarePixelWidth||S.info.height!==S.info.squarePixelHeight)&&(S.info.decoderConfig.displayAspectWidth=S.info.squarePixelWidth,S.info.decoderConfig.displayAspectHeight=S.info.squarePixelHeight),S.initialized=!0}else{if(await _.markNextPacket(),!_.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${S.pid}`);if(S.info.codec==="aac"){const C=pn.tempFromBytes(_.suppliedPacket.data),B=Us(C);if(!B)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");S.info.aacCodecInfo={isMpeg2:!1,objectType:B.objectType},S.info.numberOfChannels=Mf[B.channelConfiguration],S.info.sampleRate=zs[B.samplingFrequencyIndex]}else if(S.info.codec==="mp3"){const C=ee(pn.tempFromBytes(_.suppliedPacket.data)),B=qf(C,_.suppliedPacket.data.byteLength);if(!B.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");S.info.numberOfChannels=Ms(B.header.channel),S.info.sampleRate=B.header.sampleRate}else if(S.info.codec==="ac3"){const C=TS(_.suppliedPacket.data);if(!C)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(C.fscod===3)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");S.info.numberOfChannels=Lf[C.acmod]+C.lfeon,S.info.sampleRate=_o[C.fscod]}else if(S.info.codec==="eac3"){const C=xS(_.suppliedPacket.data);if(!C)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const B=w0(C);if(B===null)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");S.info.numberOfChannels=x0(C),S.info.sampleRate=B}else throw new Error("Unhandled.");S.info.decoderConfig={codec:Ff({codec:S.info.codec,codecDescription:null,aacCodecInfo:S.info.aacCodecInfo}),numberOfChannels:S.info.numberOfChannels,sampleRate:S.info.sampleRate},S.initialized=!0}}}if(m&&this.elementaryStreams.every(S=>S.initialized))break;u+=this.packetStride}if(!m)throw d?new Error("No Program Map Table found in the file."):new Error("No Program Association Table found in the file.");for(const p of this.elementaryStreams)p.info.type==="video"?this.trackBackingEntries.push(new d1(p)):this.trackBackingEntries.push(new h1(p))})()}async getTrackBackings(){return await this.readMetadata(),this.trackBackingEntries}async getMetadataTags(){return{}}async getMimeType(){await this.readMetadata();const n=await Promise.all(this.trackBackingEntries.map(i=>i.getDecoderConfig().then(r=>r?.codec??null)));return u1(n)}async readSection(n,i,r=!1){let o=n,u=n;const c=[];let d=0,m=null,p=!0,y=0;for(;;){const k=await this.readPacket(u);if(u+=this.packetStride,!k)break;if(m){if(k.pid!==m.pid){if(r)break;continue}if(k.payloadUnitStartIndicator===1)break}else{if(k.payloadUnitStartIndicator===0)break;m=k}const T=!!(k.adaptationFieldControl&2),w=!!(k.adaptationFieldControl&1);let S=0;if(T&&(S=1+k.body[0],k===m&&S>1&&(y=k.body[1]>>6&1)),w&&(S===0?(c.push(k.body),d+=k.body.byteLength):(c.push(k.body.subarray(S)),d+=k.body.byteLength-S)),o=u,!i&&d>=64){p=!1;break}if(Fs(this.sectionEndPositions,o,_=>_)!==-1){p=!1;break}}if(p){const k=Oe(this.sectionEndPositions,o,T=>T);this.sectionEndPositions.splice(k+1,0,o)}if(!m)return null;let g;if(c.length===1)g=c[0];else{const k=c.reduce((w,S)=>w+S.length,0);g=new Uint8Array(k);let T=0;for(const w of c)g.set(w,T),T+=w.length}return{startPos:n,endPos:i?o:null,pid:m.pid,payload:g,randomAccessIndicator:y}}async readPacketHeader(n){let i=this.reader.requestSlice(n,4);if(i instanceof Promise&&(i=await i),!i)return null;if(oe(i)!==71)throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const o=at(i),u=o>>14&1,c=o&8191,m=oe(i)>>4&3;return{payloadUnitStartIndicator:u,pid:c,adaptationFieldControl:m}}async readPacket(n){let i=this.reader.requestSlice(n,Qt);if(i instanceof Promise&&(i=await i),!i)return null;const r=fe(i,Qt);if(r[0]!==71)throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const u=(r[1]<<8)+r[2],c=u>>14&1,d=u&8191,p=r[3]>>4&3;return{payloadUnitStartIndicator:c,pid:d,adaptationFieldControl:p,body:r.subarray(4)}}}const ni=(l,n)=>{if(l.payload.byteLength<3)return null;const i=new Me(l.payload);if(i.readBits(24)!==1)return null;const o=i.readBits(8);if(i.skipBits(16),o===188||o===190||o===191||o===240||o===241||o===255||o===242||o===248)return null;i.skipBits(8);const u=i.readBits(2);i.skipBits(14);let c=null;if(u===2||u===3)c=0,i.skipBits(4),c+=i.readBits(3)*(1<<30),i.skipBits(1),c+=i.readBits(15)*32768,i.skipBits(1),c+=i.readBits(15);else if(n)throw new Error(q0);return{sectionStartPos:l.startPos,sectionEndPos:l.endPos,pts:c,randomAccessIndicator:l.randomAccessIndicator}},lr=(l,n)=>{x(l.endPos!==null);const i=ni(l,n);if(!i)return null;const r=new Me(l.payload);r.skipBits(32);const o=r.readBits(16),u=6;r.skipBits(16);const c=r.readBits(8),d=r.pos+8*c;r.pos=d;const m=d/8;x(Number.isInteger(m));const p=l.payload.subarray(m,o>0?u+o:l.payload.byteLength);return{...i,data:p}};class Po{constructor(n){this.elementaryStream=n,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const n=this.elementaryStream.demuxer,i=this.elementaryStream.info.type;let r=0;for(const o of n.trackBackingEntries)if(o.getType()===i&&r++,x(o instanceof Po),o.elementaryStream===this.elementaryStream)break;return r}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return At}getDisposition(){return{...ea,primary:!1}}getTimeResolution(){return Wn}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}createEncodedPacket(n,i,r){let o;return this.allPacketsAreKeyPackets()?o="key":o=n.randomAccessIndicator===1?"key":"delta",new ht(r.metadataOnly?Wt:n.data,o,n.pts/Wn,Math.max(i/Wn,0),n.sequenceNumber,n.data.byteLength)}async getFirstPacket(n){const i=this.elementaryStream.firstSection;x(i);const r=lr(i,!0);x(r);const o=new Es(this.elementaryStream,r),u=new cf(this,o),c=await u.readNext();if(!c)return null;const d=this.createEncodedPacket(c.packet,c.duration,n);return this.packetBuffers.set(d,u),this.packetSectionStarts.set(d,c.packet.sectionStartPos),d}async getNextPacket(n,i){let r=this.packetBuffers.get(n);if(r){const y=await r.readNext();if(!y)return null;this.packetBuffers.delete(n);const g=this.createEncodedPacket(y.packet,y.duration,i);return this.packetBuffers.set(g,r),this.packetSectionStarts.set(g,y.packet.sectionStartPos),g}const o=this.packetSectionStarts.get(n);if(o===void 0)throw new Error("Packet was not created from this track.");const c=await this.elementaryStream.demuxer.readSection(o,!0);x(c);const d=lr(c,!0);x(d);const m=new Es(this.elementaryStream,d);r=new cf(this,m);const p=n.sequenceNumber;for(;;){const y=await r.readNext();if(!y)return null;if(y.packet.sequenceNumber>p){const g=this.createEncodedPacket(y.packet,y.duration,i);return this.packetBuffers.set(g,r),this.packetSectionStarts.set(g,y.packet.sectionStartPos),g}}}async getNextKeyPacket(n,i){let r=n;for(;;){if(r=await this.getNextPacket(r,i),!r)return null;if(r.type==="key")return r}}getPacket(n,i){return this.doPacketLookup(n,!1,i)}getKeyPacket(n,i){return this.doPacketLookup(n,!0,i)}async doPacketLookup(n,i,r){const o=Os(n*Wn),u=this.elementaryStream.demuxer,{reader:c,seekChunkSize:d}=u,m=this.elementaryStream.pid,p=async(P,D,z)=>{let H=P;for(;HP.pts),S=w!==-1?T[w]:null;if(S&&o-S.pts1){let z=0,H=D-1;for(P=z;z<=H;){const L=Math.floor((z+H)/2),I=$u(L*d,u.packetStride)+g.sectionStartPos,X=I+d,J=await p(I,X,!1);if(!J){H=L-1;continue}J.pesPacketHeader.pts<=o?(P=L,z=L+1):H=L-1}}}k=$u(P*d,u.packetStride)+g.sectionStartPos}let _=(await p(k,c.fileSize??1/0,!1))?.pesPacketHeader??null;_||(_=g);const C=this.getReorderSize(),B=async(P,D)=>{const z=await u.readSection(P,!0);x(z);const H=lr(z,!0);x(H);const L=new Es(this.elementaryStream,H),I=new cf(this,L);for(;!((Zt(I.presentationOrderPackets)?.pts??-1/0)>=o||!await I.readNextPacket()););const X=If(I.presentationOrderPackets,D);if(X===-1)return null;const J=I.presentationOrderPackets[X],Z=X===0?0:J.pts-I.presentationOrderPackets[X-1].pts;for(;I.decodeOrderPackets[0]!==J;)I.decodeOrderPackets.shift();I.lastDuration=Z;const se=await I.readNext();x(se);const de=this.createEncodedPacket(se.packet,se.duration,r);return this.packetBuffers.set(de,I),this.packetSectionStarts.set(de,se.packet.sectionStartPos),de};if(!i||this.allPacketsAreKeyPackets()){e:for(;;){let P=_.sectionStartPos+u.packetStride;for(;;){const D=await u.readPacketHeader(P);if(!D)break e;if(D.pid===m&&D.payloadUnitStartIndicator===1){const z=await u.readSection(P,!1);if(z){const H=ni(z,!1);if(H&&H.pts!==null){if(H.pts>o)break e;_=H,xf(this.elementaryStream,_);break}}}P+=u.packetStride}}e:for(let P=0;P=u.packetOffset;){const z=await u.readPacketHeader(D);if(!z)break e;if(z.pid===m&&z.payloadUnitStartIndicator===1){const H=await u.readSection(D,!1);if(H){const L=ni(H,!1);if(L&&L.pts!==null){_=L;break}}}D-=u.packetStride}}return B(_.sectionStartPos,P=>P.pts<=o)}else{let P=k,D=null;const z=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let H=null;const L=P<=g.sectionStartPos;let I,X=null;if(L)I=g,X=y;else{const se=await p(P,c.fileSize??1/0,z);I=se?.pesPacketHeader??null,X=se?.section??null}let J=!1,Z=0;e:for(;I&&!(D!==null&&I.sectionStartPos>=D);){if(I.pts<=o){let de;if(this.elementaryStream.canBeTrustedWithKeyPackets)de=I.randomAccessIndicator===1;else{x(X);const ce=lr(X,!0);x(ce);const N=new Es(this.elementaryStream,ce);await N.markNextPacket(),de=N.suppliedPacket?.randomAccessIndicator===1}de&&(H=I)}if(I.pts>o&&(J=!0),J&&(Z++,Z>C))break;let se=I.sectionStartPos+u.packetStride;for(;;){const de=await u.readPacketHeader(se);if(!de)break e;if(de.pid===m&&de.payloadUnitStartIndicator===1){const ce=await u.readSection(se,z);if(ce){const N=ni(ce,!1);if(N&&N.pts!==null){I=N,X=ce,xf(this.elementaryStream,I);break}}}se+=u.packetStride}}if(H){let se=H;if(Z===0)e:for(let ce=0;ce=u.packetOffset;){const $=await u.readPacketHeader(N);if(!$)break e;if($.pid===m&&$.payloadUnitStartIndicator===1){const re=await u.readSection(N,z);if(re){const pe=ni(re,!1);if(pe&&pe.pts!==null){se=pe;break}}}N-=u.packetStride}}const de=await B(se.sectionStartPos,ce=>ce.pts<=o&&ce.randomAccessIndicator===1);return x(de),de}if(L)return null;D=P,P=Math.max($u(P-g.sectionStartPos-d,u.packetStride)+g.sectionStartPos,g.sectionStartPos)}}}}class d1 extends Po{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}async getColorSpace(){return this.elementaryStream.info.colorSpace}async canBeTransparent(){return!1}async getDecoderConfig(){return x(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class h1 extends Po{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}async getDecoderConfig(){return x(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const xf=(l,n)=>{const i=l.referencePesPackets,r=Oe(i,n.sectionStartPos,o=>o.sectionStartPos);if(r>=0){const o=i[r];if(n.pts<=o.pts)return!1;const u=l.demuxer.minReferencePointByteDistance;if(n.sectionStartPos-o.sectionStartPos=n?n:this.bufferData(n-i).then(()=>Math.min(this.endPos-this.currentPos,n))}getCurrentPesPacket(){const n=this.pesPackets[this.currentPesPacketIndex];return x(n),n}async bufferData(n){const i=this.endPos+n;for(;this.endPos=g)break;k=T;const w=p+k;if(k+3>=g){this.seekTo(w);break}const S=y[k+1],E=y[k+2],_=y[k+3];let C=0;if(S===0&&E===0&&_===1?C=4:S===0&&E===1&&(C=3),C===0){k++;continue}const B=w;u??=B;const P=k+C,D=P+o,z=6;if(D+(i==="avc"?z:1)>g){this.seekTo(w);break}const L=y[P];let I,X,J;if(i==="avc")I=Hf(L),X=I===vt.NON_IDR_SLICE||I===vt.SLICE_DPA||I===vt.IDR,J=I===vt.SEI||I===vt.SPS||I===vt.PPS||I===vt.AUD;else{if(I=bo(L),((L&1)<<5|y[P+1]>>3)>0){k+=C;continue}X=I<=St.RASL_R||I>=St.BLA_W_LP&&I<=21,J=I>=St.VPS_NUT&&I<=37||I===St.PREFIX_SEI_NUT||I>=41&&I<=44||I>=48&&I<=55}let Z=!1;if(X){let se;if(i==="avc"){const de=y.subarray(D,D+z),ce=te(new Me(de));se=!c||ce<=d,d=ce}else se=y[D]>>7===1;se&&(c?Z=!0:c=!0)}else J&&c&&(Z=!0);if(Z){const se=B-u;return this.seekTo(u),this.supplyPacket(se,0)}k+=C}if(mu){const m=this.endPos-u;return this.seekTo(u),this.supplyPacket(m,0)}}else{const i=n.info.codec,r=128;for(;;){let o=this.ensureBuffered(r);o instanceof Promise&&(o=await o);const u=this.currentPos;for(;this.currentPos-u>6,g=p[4]&63;if(y===3||g>37){this.seekTo(d+1);continue}const k=vS[3*g+y];x(k!==void 0),this.seekTo(d),m=this.ensureBuffered(k),m instanceof Promise&&(m=await m);const T=Math.round(wS*Wn/n.info.sampleRate);return this.supplyPacket(m,T)}else if(i==="eac3"){if(c!==11)continue;this.skip(-1);const d=this.currentPos;let m=this.ensureBuffered(5);if(m instanceof Promise&&(m=await m),m<5)return;const p=this.readBytes(5);if(p[0]!==11||p[1]!==119){this.seekTo(d+1);continue}const g=(((p[2]&7)<<8|p[3])+1)*2,T=p[4]>>6===3?3:p[4]>>4&3,w=v0[T];this.seekTo(d),m=this.ensureBuffered(g),m instanceof Promise&&(m=await m);const S=w*256,E=Math.round(S*Wn/n.info.sampleRate);return this.supplyPacket(m,E)}else throw new Error("Unhandled.")}if(o=0)}async readNext(){if(this.decodeOrderPackets.length===0&&!await this.readNextPacket())return null;await this.ensureCurrentPacketHasNext();const n=this.decodeOrderPackets[0],i=this.presentationOrderPackets.indexOf(n);x(i!==-1);let r;for(i===this.presentationOrderPackets.length-1?r=this.lastDuration:(r=this.presentationOrderPackets[i+1].pts-n.pts,this.lastDuration=r),this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const o=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(o))break;this.presentationOrderPackets.shift()}return{packet:n,duration:r}}async readNextPacket(){if(this.reachedEnd)return!1;let n;return this.context.suppliedPacket?n=this.context.suppliedPacket:(await this.context.markNextPacket(),n=this.context.suppliedPacket),this.context.suppliedPacket=null,n?(this.decodeOrderPackets.push(n),this.processPacketThroughReorderBuffer(n),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)}async ensureCurrentPacketHasNext(){const n=this.decodeOrderPackets[0];for(x(n);;){const i=this.presentationOrderPackets.indexOf(n);if(i!==-1&&i<=this.presentationOrderPackets.length-2||!await this.readNextPacket())break}}processPacketThroughReorderBuffer(n){if(this.reorderBuffer.push(n),this.reorderBuffer.length>this.reorderSize){let i=0;for(let o=1;on.pts-i.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const H0="application/vnd.apple.mpegurl",Sg="#EXT-X-STREAM-INF:",Tg="#EXT-X-I-FRAME-STREAM-INF:",vg="#EXT-X-MEDIA:",Cf="#EXTINF:",wg="#EXT-X-MAP:",xg="#EXT-X-KEY:",Cg="#EXT-X-MEDIA-SEQUENCE:",_g="#EXT-X-BYTERANGE:",Eg="#EXT-X-PROGRAM-DATE-TIME:",m1="#EXT-X-DISCONTINUITY",Ag="#EXT-X-TARGETDURATION:",p1="#EXT-X-ENDLIST",Pg="#EXT-X-PLAYLIST-TYPE:",g1="#EXT-X-I-FRAMES-ONLY",L0=l=>l.length===0||l.startsWith("#")&&!l.startsWith("#EXT");class Ds{constructor(n){this._attributes={};let i="",r="",o=!1,u=!1;for(let c=0;c{const n=[];if(this.trackDeclarations){for(const i of this.trackDeclarations)if(i.type==="video"){const r=xs(n,o=>o.getType()==="video")+1;n.push(new Bg(this,i,r))}else if(i.type==="audio"){const r=xs(n,o=>o.getType()==="audio")+1;n.push(new Dg(this,i,r))}}else{if(this.firstSegment=await this.getFirstSegment({}),!this.firstSegment)return[];const r=await this.getInputForSegment(this.firstSegment).getTracks();for(const o of r)if(o.type==="video"){const u=xs(n,c=>c.getType()==="video")+1;n.push(new Bg(this,{id:n.length+1,type:"video"},u))}else if(o.type==="audio"){const u=xs(n,c=>c.getType()==="audio")+1;n.push(new Dg(this,{id:n.length+1,type:"audio"},u))}}return n})()}async getFirstTimestampForInput(n){const i=this.firstTimestampCache.get(n);if(i!==void 0)return i;const r=await n.getFirstTimestamp();return this.firstTimestampCache.set(n,r),r}async getMediaOffset(n,i){const r=n.firstSegment??n;let o;if(this.firstSegmentFirstTimestamps.has(r))o=this.firstSegmentFirstTimestamps.get(r);else{const p=this.getInputForSegment(r);o=await this.getFirstTimestampForInput(p),this.firstSegmentFirstTimestamps.set(r,o)}if(r===n)return r.timestamp-o;const u=await this.getFirstTimestampForInput(i),c=n.timestamp-r.timestamp,m=u-o-c;return Math.abs(m)<=Math.min(.25,c)?r.timestamp-o:n.timestamp-u}dispose(){for(const n of this.inputCache)n.input.dispose();this.inputCache.length=0}}class V0{constructor(n,i,r){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.segmentedInput=n,this.decl=i,this.number=r}hydrate(){return this.hydrationPromise??=(async()=>{if(this.segmentedInput.firstSegment??=await this.segmentedInput.getFirstSegment({}),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");const r=(await this.segmentedInput.getInputForSegment(this.segmentedInput.firstSegment).getTracks()).find(o=>o.type===this.decl.type&&o.number===this.number);if(!r)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=r})()}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(n){return this.firstInputTrack?n():this.hydrate().then(n)}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}getHasOnlyKeyPackets(){return this.delegate(()=>this.firstInputTrack._backing.getHasOnlyKeyPackets?.()??null)}getPairingMask(){return 1n}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}async isRelativeToUnixEpoch(){return await this.hydrate(),x(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp}getUnixTimeForTimestamp(n){return this.segmentedInput.getUnixTimeForTimestamp(n)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(n){return this.segmentedInput.getDurationFromMetadata(n)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}async createAdjustedPacket(n,i,r){x(n.sequenceNumber>=0),x(this.segmentedInput.firstSegment);const o=await this.segmentedInput.getMediaOffset(i,r.input),u=i.timestamp-this.segmentedInput.firstSegment.timestamp,c=n.clone({timestamp:e0(n.timestamp+o,await r.getTimeResolution()),sequenceNumber:Math.floor(1e8*u)+n.sequenceNumber});return this.packetInfos.set(c,{segment:i,track:r,sourcePacket:n}),c}async getFirstPacket(n){await this.hydrate(),x(this.segmentedInput.firstSegment),x(this.firstInputTrack);const i=await this.firstInputTrack._backing.getFirstPacket(n);return i?this.createAdjustedPacket(i,this.segmentedInput.firstSegment,this.firstInputTrack):null}getNextPacket(n,i){return this._getNextInternal(n,i,!1)}getNextKeyPacket(n,i){return this._getNextInternal(n,i,!0)}async _getNextInternal(n,i,r){const o=this.packetInfos.get(n);if(!o)throw new Error("Packet was not created from this track.");const u=r?await o.track._backing.getNextKeyPacket(o.sourcePacket,i):await o.track._backing.getNextPacket(o.sourcePacket,i);if(u)return this.createAdjustedPacket(u,o.segment,o.track);let c=o.segment;for(;;){const d=await this.segmentedInput.getNextSegment(c,{skipLiveWait:i.skipLiveWait});if(!d)return null;const y=(await this.segmentedInput.getInputForSegment(d).getTracks()).find(k=>k.type===o.track.type&&k.number===o.track.number);if(!y){c=d;continue}const g=await y._backing.getFirstPacket(i);return g?this.createAdjustedPacket(g,d,y):null}}getPacket(n,i){return this._getPacketInternal(n,i,!1)}getKeyPacket(n,i){return this._getPacketInternal(n,i,!0)}async _getPacketInternal(n,i,r){let o=await this.segmentedInput.getSegmentAt(n,{skipLiveWait:i.skipLiveWait});if(!o)return null;for(await this.hydrate();o;){const u=this.segmentedInput.getInputForSegment(o),d=(await u.getTracks()).find(g=>g.type===this.firstInputTrack.type&&g.number===this.firstInputTrack.number);if(!d){o=await this.segmentedInput.getPreviousSegment(o,{skipLiveWait:i.skipLiveWait});continue}const m=await this.segmentedInput.getMediaOffset(o,u),p=n-m,y=r?await d._backing.getKeyPacket(p,i):await d._backing.getPacket(p,i);if(!y){o=await this.segmentedInput.getPreviousSegment(o,{skipLiveWait:i.skipLiveWait});continue}return this.createAdjustedPacket(y,o,d)}return null}}class Bg extends V0{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}async getColorSpace(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())}async canBeTransparent(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}class Dg extends V0{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}Rf();const j0=0,X0=1/0;typeof FinalizationRegistry<"u"&&new FinalizationRegistry(l=>{l()});class Cn extends zf{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,typeof FinalizationRegistry<"u"&&(this._refFinalizationRegistry=new FinalizationRegistry(n=>{n._decrementRefCount()}))}async getSizeOrNull(){if(this._disposed)throw new Et;return this._sizePromise??=(async()=>{let n=this._getFileSize();return n!==void 0||(await this._read(0,1,j0,X0),n=this._getFileSize(),x(n!==void 0)),n})()}async getSize(){if(this._disposed)throw new Et;const n=await this.getSizeOrNull();if(n===null)throw new Error("Cannot determine the size of an unsized source.");return n}slice(n,i){if(!Number.isInteger(n)||n<0)throw new TypeError("offset must be a non-negative integer.");if(i!==void 0&&(!Number.isInteger(i)||i<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new w1(this,n,i)}_dispatchRead(n,i){this.onread?.(n,i),this._emit("read",{start:n,end:i})}ref(){return new Xf(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,this._refCount===0&&(this._dispose(),this._disposed=!0)}}class Xf{constructor(n){if(this._freed=!1,n._disposed)throw new Error("Cannot ref a disposed source.");n._incrementRefCount(),n._refFinalizationRegistry?.register(this,n,this),this._source=n}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const n=this.source;x(n._refCount>0),n._decrementRefCount(),n._refFinalizationRegistry?.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class qs extends Cn{constructor(n,i){if(typeof n!="string")throw new TypeError("rootPath must be a string.");if(typeof i!="function")throw new TypeError("requestHandler must be a function.");super(),this.rootPath=n,this.requestHandler=i}_resolveRequest(n){const i=this.requestHandler(n),r=o=>{if(!(o instanceof Cn||o instanceof Xf))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const u=o instanceof Cn?o.ref():o;return u.source._usedForHls||=this._usedForHls,u};return i instanceof Promise?i.then(r):r(i)}}const Ig=(l,n)=>l.path===n.path;class k1 extends qs{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(n,i,r,o){if(!this._root){if(!this._rootRequest){const u=this._resolveRequest({path:this.rootPath,isRoot:!0}),c=d=>{const m=d instanceof Cn?d.ref():d;return this._root=m,this._rootRequest=null,m};u instanceof Promise?this._rootRequest=u.then(c):(c(u),x(this._root))}if(this._rootRequest)return this._rootRequest.then(u=>u.source._read(n,i,r,o))}return this._root.source._read(n,i,r,o)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(n=>n.free())}}class b1 extends Cn{constructor(n,i={}){if(!(n instanceof Blob))throw new TypeError("blob must be a Blob.");if(!i||typeof i!="object")throw new TypeError("options must be an object.");if(i.maxCacheSize!==void 0&&(!Of(i.maxCacheSize)||i.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(i.useStreamReader!==void 0&&typeof i.useStreamReader!="boolean")throw new TypeError("options.useStreamReader, when provided, must be a boolean.");super(),this._readers=new WeakMap,this._blob=n,this._options=i,this._orchestrator=new v1({maxCacheSize:i.maxCacheSize??8*2**20,maxWorkerCount:4,runWorker:this._runWorker.bind(this),prefetchProfile:T1.fileSystem}),this._orchestrator.fileSize=n.size}_getFileSize(){return this._orchestrator.fileSize}_read(n,i,r,o){return this._orchestrator.read(n,i,r,o)}async _runWorker(n){x(n.strictTarget);let i=this._readers.get(n);for(i===void 0&&("stream"in this._blob&&!n0()&&this._options.useStreamReader!==!1?i=this._blob.slice(n.currentPos).stream().getReader():i=null,this._readers.set(n,i));n.currentPosthis._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,i);const r=Oe(this._cache,n,y=>y.start),o=r!==-1?this._cache[r]:null;if(o&&o.start<=n&&i<=o.end)return{bytes:o.bytes,view:o.view,offset:o.start};let u=n;const c=new Uint8Array(i-n);if(r!==-1)for(let y=r;y=i)break;const k=Math.max(n,g.start);k>u&&this._throwDueToCacheMiss();const T=Math.min(i,g.end);ku&&this._throwDueToCacheMiss();const{promise:d,resolve:m,reject:p}=Nt();return this._pendingSlices.push({start:n,end:i,bytes:c,resolve:m,reject:p}),this._targetIndex=Math.max(this._targetIndex,i),this._pulling||(this._pulling=!0,this._pull().catch(y=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(g=>g.reject(y)),this._pendingSlices.length=0;else throw y})),d}_throwDueToCacheMiss(){throw new Error("Read is before the cached region. With ReadableStreamSource, you must access the data more sequentially or increase the size of its cache.")}async _pull(){for(this._reader??=this._stream.getReader();this._currentIndex0;){const u=this._cache[0];if(this._maxRequestedIndex-u.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=i.byteLength}this._pulling=!1}_dispose(){this._pendingSlices.length=0,this._cache.length=0,this._reader?.cancel()}}const T1={fileSystem:(l,n)=>(l=Math.floor((l-65536)/65536)*65536,n=Math.ceil((n+65536)/65536)*65536,{start:l,end:n})};class v1{constructor(n){this.options=n,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(n,i,r,o){x(!this.disposed);const u=this.options.prefetchProfile(n,i,this.workers),c=Math.max(u.start,r),d=Math.min(u.end,this.fileSize??1/0,o);x(c<=n&&i<=d);let m=null;const p=Oe(this.cache,n,D=>D.start),y=p!==-1?this.cache[p]:null;y&&y.start<=n&&i<=y.end&&(y.age=this.nextAge++,m={bytes:y.bytes,view:y.view,offset:y.start});const g=Oe(this.cache,c,D=>D.start),k=m?null:new Uint8Array(i-n);let T=0,w=c;const S=[];if(g!==-1){for(let D=g;D=d)break;if(z.end<=c)continue;const H=Math.max(c,z.start),L=Math.min(d,z.end);if(x(H<=L),w=k.length&&(m={bytes:k,view:Re(k),offset:n}),S.length===0)return x(m),m;const{promise:E,resolve:_,reject:C}=Nt(),B=[];for(const D of S){const z=Math.max(n,D.start),H=Math.min(i,D.end);z===D.start&&H===D.end?B.push(D):zX.hole.start),I=L!==-1?this.queuedReads[L]:null;for(I&&D.start<=I.hole.end?(I.hole.end=Math.max(I.hole.end,D.end),I.strictTarget&&=z,P&&I.pendingSlices.push(P)):(L++,I={hole:{start:D.start,end:D.end},strictTarget:z,pendingSlices:P?[P]:[],age:this.nextAge++},this.queuedReads.splice(L,0,I));L+1I.hole.end)break;I.hole.end=Math.max(I.hole.end,X.hole.end),I.pendingSlices.push(...X.pendingSlices),I.strictTarget&&=X.strictTarget,I.age=Math.min(I.age,X.age),this.queuedReads.splice(L+1,1)}}}return m?E.catch(D=>{if(!this.disposed)throw D}):(x(k),m=E.then(D=>D&&{bytes:D,view:Re(D),offset:n})),m}checkHoleAgainstWorker(n,i,r){if(ng(i.start-131072,i.start,n.currentPos,n.targetPos)){n.targetPos=Math.max(n.targetPos,i.end);for(let u=0;u=this.options.maxWorkerCount){let u=null,c=null;for(let d=0;d{if(n.running=!1,n.pendingSlices.length>0)n.pendingSlices.forEach(r=>r.reject(i)),n.pendingSlices.length=0;else if(!n.aborted&&!this.disposed)throw i}).finally(()=>{if(!n.running&&this.queuedReads.length>0){let i=0;for(let u=1;un.targetPos&&(n.targetPos=n.currentPos,this.checkQueuedReadsAgainstWorker(n));for(let u=0;uy.start&&(y.start=o),y.end<=y.start&&(c.holes.splice(p,1),p--)}c.holes.length===0&&(c.resolve(c.bytes),n.pendingSlices.splice(u,1),u--)}for(let u=0;un){o.resolve(null),i.pendingSlices.splice(r,1),r--;break}}}for(let i=0;i=n){for(const o of r.pendingSlices)o.resolve(null);this.queuedReads.splice(i,1),i--}else if(r.hole.end>n){r.hole.end=n,r.strictTarget=!0;for(let o=0;o=n&&(u.resolve(null),r.pendingSlices.splice(o,1),o--)}}}}signalWorkerStoppedRunning(n){n.running=!1,n.pendingSlices.length=0}onWorkerFinished(n){const i=this.workers.indexOf(n);x(i!==-1),n.running=!1,this.workers.splice(i,1),this.fileSize===null&&this.supplyFileSize(n.currentPos);for(const r of n.pendingSlices)r.resolve(null)}insertIntoCache(n){if(this.options.maxCacheSize===0)return;let i=Oe(this.cache,n.start,r=>r.start)+1;if(i>0){const r=this.cache[i-1];if(r.end>=n.end)return;if(r.end>n.start){const o=new Uint8Array(n.end-r.start);o.set(r.bytes,0),o.set(n.bytes,n.start-r.start),this.currentCacheSize+=n.end-r.end,r.bytes=o,r.view=Re(o),r.end=n.end,i--,n=r}else this.cache.splice(i,0,n),this.currentCacheSize+=n.bytes.length}else this.cache.splice(i,0,n),this.currentCacheSize+=n.bytes.length;for(let r=i+1;r=o.end){this.cache.splice(r,1),this.currentCacheSize-=o.bytes.length,r--;continue}const u=new Uint8Array(o.end-n.start);u.set(n.bytes,0),u.set(o.bytes,o.start-n.start),this.currentCacheSize-=n.end-o.start,n.bytes=u,n.view=Re(u),n.end=o.end,this.cache.splice(r,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let r=0,o=this.cache[0];for(let u=1;uthis._length)return null;const u=this._baseSource._read(this._offset+n,this._offset+i,this._offset+r,this._offset+o),c=d=>d?(d.offset-=this._offset,d):null;return u instanceof Promise?u.then(c):c(u)}_dispose(){this._ref?.free()}ref(){return this._ref??=this._baseSource.ref(),super.ref()}}var Rg=function(l,n,i){if(n!=null){if(typeof n!="object"&&typeof n!="function")throw new TypeError("Object expected.");var r,o;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=n[Symbol.asyncDispose]}if(r===void 0){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=n[Symbol.dispose],i&&(o=r)}if(typeof r!="function")throw new TypeError("Object not disposable.");o&&(r=function(){try{o.call(this)}catch(u){return Promise.reject(u)}}),l.stack.push({value:n,dispose:r,async:i})}else i&&l.stack.push({async:!0});return n},Og=(function(l){return function(n){function i(c){n.error=n.hasError?new l(c,n.error,"An error was suppressed during disposal."):c,n.hasError=!0}var r,o=0;function u(){for(;r=n.stack.pop();)try{if(!r.async&&o===1)return o=0,n.stack.push(r),Promise.resolve().then(u);if(r.dispose){var c=r.dispose.call(r.value);if(r.async)return o|=2,Promise.resolve(c).then(u,function(d){return i(d),u()})}else o|=1}catch(d){i(d)}if(o===1)return n.hasError?Promise.reject(n.error):Promise.resolve();if(n.hasError)throw n.error}return u()}})(typeof SuppressedError=="function"?SuppressedError:function(l,n,i){var r=new Error(i);return r.name="SuppressedError",r.error=l,r.suppressed=n,r});const x1=/^0[xX][0-9a-fA-F]+$/,C1=/^data:.*;base64,/i;class zg extends y1{constructor(n,i,r,o){super(n.input,i,r),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=i,this.demuxer=n,this.nextLines=o}runUpdateSegments(){return this.currentUpdateSegmentsPromise??=(async()=>{try{const n=this.getRemainingWaitTimeMs();n>0&&await nS(n),this.lastSegmentUpdateTime=performance.now(),await this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}})()}getRemainingWaitTimeMs(){const n=performance.now()-this.lastSegmentUpdateTime,i=Math.max(0,1e3*this.refreshInterval-n);return i<=50?0:i}async updateSegments(){let n=this.nextLines;if(this.nextLines=null,!n){const B={stack:[],error:void 0,hasError:!1};try{const P=Rg(B,await this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),z=await new fo(P.source).requestEntireFile();x(z),n=ry(z,z.length,{ignore:L0}),P.source instanceof qs&&(this.rootPath=P.source.rootPath)}catch(P){B.error=P,B.hasError=!0}finally{Og(B)}}const i=this.input._formatOptions.hls?.offsetTimestampsByDateTime!==!1;let r=!1,o=0,u=null,c=null,d=null,m=0,p=null,y=null,g=null,k=null,T=null,w=null,S=!1,E=Zt(this.segments)??null;const _=B=>{const P=B.indexOf("@"),D=Number(P===-1?B:B.slice(0,P));if(!Number.isInteger(D)||D<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${B}'.`);let z=null;if(P!==-1&&(z=Number(B.slice(P+1)),!Number.isInteger(z)||z<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${B}'.`);return{length:D,offset:z}},C=B=>{m=B,E&&(x(E.sequenceNumber!==null),E.sequenceNumber0&&w!==null&&(o=m*w),S=!0);const D=P.slice(Cf.length),z=D.indexOf(","),H=z===-1?D:D.slice(0,z),L=Number(H);if(!Number.isFinite(L)||L<0)throw new Error(`Invalid #EXTINF tag duration '${H}'.`);c=L}else if(P.startsWith(wg)){const D=new Ds(P.slice(wg.length)),z=D.get("uri");if(!z)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const H=D.get("byterange");let L=null;if(H!==null&&(L=_(H)),L&&L.offset===null)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!E){const X={path:Da(this.rootPath,z),offset:L?.offset??0,length:L?.length??null};if(d?.method==="AES-128"&&!d.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");y={timestamp:o,unixEpochTimestamp:u,firstSegment:null,sequenceNumber:null,location:X,duration:0,encryption:d,initSegment:null,lastProgramDateTimeSeconds:T}}c=null,k===null?g=null:k=null}else if(P.startsWith(xg)){const D=new Ds(P.slice(xg.length)),z=D.get("method");if(z==="NONE")d=null;else if(z==="AES-128"){const H=D.get("uri");if(!H)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let L=null;const I=D.get("iv");if(I){if(!x1.test(I))throw new Error(`Unsupported IV format '${I}'.`);let J=I.slice(2);J=J.padStart(wn*2,"0"),L=new Uint8Array(wn);for(let Z=0;Z=8&&J[4]===112&&J[5]===115&&J[6]===115&&J[7]===104){const Z=Re(J).getUint32(0);I=C0(J.subarray(8,Math.min(Z,J.length)))}}d={method:z,psshBox:I}}else throw new Error(`Unsupported encryption method '${z}'. If you think this method should be supported, please raise an issue.`)}else if(P.startsWith(Cg)){const D=P.slice(Cg.length),z=Number(D);if(!Number.isInteger(z)||z<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${D}'.`);C(z)}else if(P.startsWith(_g)){const D=_(P.slice(_g.length));if(D.offset===null){if(g===null)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");D.offset=g}k=D,g=D.offset+D.length}else if(P.startsWith(Eg)){if(E)continue;const D=P.slice(Eg.length),z=Date.parse(D);if(!Number.isFinite(z))continue;const H=z/1e3;if(T===H)continue;if(T===null&&this.segments.length>0){const L=Zt(this.segments),I=L.timestamp+L.duration,X=H-I;for(const J of this.segments)J.unixEpochTimestamp=J.timestamp+X,i&&(J.timestamp=J.unixEpochTimestamp)}T=H,u=H,i&&(o=H)}else if(P===m1)p=null;else if(P.startsWith(Ag)){const D=P.slice(Ag.length),z=Number(D);if(!Number.isFinite(z)||z<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${D}'.`);this.refreshInterval=z,w=z}else if(P===p1){this.streamHasEnded=!0;break}else P.startsWith(Pg)&&P.slice(Pg.length).toLowerCase()==="vod"&&(this.streamHasEnded=!0)}if(!r)throw new Error("Invalid M3U8 file; no #EXTM3U header.")}async getFirstSegment(){return this.segments.length===0&&await this.runUpdateSegments(),this.segments[0]??null}async getSegmentAt(n,i){this.segments.length===0&&await this.runUpdateSegments();let r=!!i.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const o=Oe(this.segments,n,c=>c.timestamp);if(o===-1)return null;if(o0;for(;;){if(om.segment===i);if(r)return r.age=this.nextInputCacheAge++,r.input;let o=null;(i.initSegment||i.firstSegment)&&(o=this.getInputForSegment(i.initSegment??i.firstSegment));const u={...this.input._formatOptions,isobmff:{...this.input._formatOptions.isobmff,resolveKeyId:this.input._formatOptions.isobmff?.resolveKeyId&&(m=>{if(!i.encryption||!(i.encryption.method==="SAMPLE-AES"||i.encryption.method==="SAMPLE-AES-CTR")||!i.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(m);let p=m.psshBoxes;const{psshBox:y}=i.encryption;return(y.keyIds===null||y.keyIds.includes(m.keyId))&&!p.some(g=>_0(g,y))&&(p=[...p,y]),this.input._formatOptions.isobmff.resolveKeyId({...m,psshBoxes:p})})}},c=new Do({source:new k1(i.location.path,async m=>{x(m.isRoot);const p={...m,isRoot:!1};let y;const g=i.location.offset>0||i.location.length!==null;if(!i.encryption||i.encryption.method==="SAMPLE-AES"||i.encryption.method==="SAMPLE-AES-CTR"){if(y=await this.input._getSourceCached(p),g){const T=y.source.slice(i.location.offset,i.location.length??void 0).ref();y.free(),y=T}}else if(i.encryption.method==="AES-128"){const k=i.encryption;x(k.iv);let T=await this.input._getSourceCached(p);if(g){const _=T.source.slice(i.location.offset,i.location.length??void 0).ref();T.free(),T=_}const w=new fo(T.source),S=PS(w,async()=>{const E={stack:[],error:void 0,hasError:!1};try{const _=Rg(E,await this.input._getSourceCached({path:k.keyUri,isRoot:!1},sT),!1),B=await new fo(_.source).requestSlice(0,wn);if(!B)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:fe(B,wn),iv:k.iv}}catch(_){E.error=_,E.hasError=!0}finally{Og(E)}},()=>{T.free()});y=new S1(S).ref()}else x(!1);return y}),formats:this.input._formats.filter(m=>!(m instanceof W0)),initInput:o??void 0,formatOptions:u});if(c._onFormatDetermined=m=>{if((i.encryption?.method==="SAMPLE-AES"||i.encryption?.method==="SAMPLE-AES-CTR")&&!m._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:i,input:c,age:this.nextInputCacheAge++}),this.inputCache.length>4){const m=i0(this.inputCache,p=>p.age);x(m!==-1),this.inputCache.splice(m,1)}return c}async getLiveRefreshInterval(){return this.getRemainingWaitTimeMs()===0&&await this.runUpdateSegments(),this.streamHasEnded?null:this.refreshInterval}}class _1 extends ta{constructor(n){super(n),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){return this.metadataPromise??=(async()=>{x(this.input._rootSource instanceof qs);const n=await this.input._reader.requestEntireFile();x(n);const i=ry(n,n.length,{ignore:L0}),{rootPath:r}=this.input._rootSource,o=[],u=[];for(let g=1;gg.attributes.get("type").toLowerCase()==="video").map(g=>g.attributes.get("group-id")))],d=[...new Set(u.filter(g=>g.attributes.get("type").toLowerCase()==="audio").map(g=>g.attributes.get("group-id")))],m=await Promise.all(o.map(async(g,k)=>{const T=[],w=g.attributes.get("codecs");let S;if(w)S=w.split(",").map(I=>I.trim());else{const X=await this.getSegmentedInputForPath(g.fullPath).getTrackBackings(),J=await Promise.all(X.map(async Z=>({track:Z,codec:await Z.getCodec()})));S=await Promise.all(J.filter(Z=>Z.codec!==null).map(Z=>Z.track.getDecoderConfig().then(se=>se.codec)))}const E=g.attributes.get("video"),_=g.attributes.get("audio"),C=S.some(I=>ig.includes(As(I))),B=S.some(I=>rg.includes(As(I)));if(E!==null&&!C){if(!c.includes(E))throw new Error(`Invalid M3U8 file; variant stream references video group "${E}" which is not defined in any #EXT-X-MEDIA tags.`);const I=u.find(X=>{const J=X.attributes.get("group-id"),Z=X.attributes.get("type");return J===E&&Z.toLowerCase()==="video"});e:if(I){const X=I.attributes.get("uri");if(X===null)break e;const J=Da(r,X),de=(await this.getSegmentedInputForPath(J).getTrackBackings()).find(N=>N.getType()==="video");if(!de||await de.getCodec()===null)break e;const ce=await de.getDecoderConfig().then(N=>N?.codec??null);x(ce!==null),S.push(ce)}}if(_!==null&&!B){if(!d.includes(_))throw new Error(`Invalid M3U8 file; variant stream references audio group "${_}" which is not defined in any #EXT-X-MEDIA tags.`);const I=u.find(X=>{const J=X.attributes.get("group-id"),Z=X.attributes.get("type");return J===_&&Z.toLowerCase()==="audio"});e:if(I){const X=I.attributes.get("uri");if(X===null)break e;const J=Da(r,X),de=(await this.getSegmentedInputForPath(J).getTrackBackings()).find(N=>N.getType()==="audio");if(!de||await de.getCodec()===null)break e;const ce=await de.getDecoderConfig().then(N=>N?.codec??null);x(ce!==null),S.push(ce)}}S=[...new Set(S)];let P=null,D=null;const z=g.attributes.getAsNumber("bandwidth");x(z!==null);const H=g.attributes.getAsNumber("average-bandwidth"),L=g.attributes.get("name");for(const I of S){const X=As(I);if(X!==null){if(ig.includes(X)){if(P!==null)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");P=I;const J=g.attributes.get("video");if(J===null){const Z=g.attributes.get("resolution");let se=null,de=null;if(Z){const ce=Z.match(/^(\d+)x(\d+)$/);ce&&(se=Number(ce[1]),de=Number(ce[2]))}T.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:At,lineNumber:g.lineNumber,fullPath:g.fullPath,fullCodecString:P,pairingMask:1n<0?se:null}})}else{if(!d.includes(J))throw new Error(`Invalid M3U8 file; variant stream references audio group "${J}" which is not defined in any #EXT-X-MEDIA tags.`);for(const Z of u){const se=Z.attributes.get("group-id"),de=Z.attributes.get("type");if(se!==J||de.toLowerCase()!=="audio")continue;const ce=Z.attributes.get("channels")??g.attributes.get("channels"),N=ce!==null?Number(ce.split("/")[0]):null;T.push({id:-1,demuxer:this,backingTrack:null,default:ro(Z.attributes),autoselect:ro(Z.attributes)||Mg(Z.attributes),languageCode:Ng(Z.attributes.get("language")),lineNumber:Z.lineNumber,fullPath:Z.fullPath??g.fullPath,fullCodecString:D,pairingMask:1n<0?N:null}})}}}}}return T})),p=[],y=g=>{const k=p.find(T=>T.fullPath===g.fullPath&&T.info.type===g.info.type);k?(k.pairingMask|=g.pairingMask,k.default||=g.default,k.autoselect||=g.autoselect,k.lineNumber=Math.min(k.lineNumber,g.lineNumber),g.peakBitrate!==null&&(k.peakBitrate=Math.max(k.peakBitrate??-1/0,g.peakBitrate)),g.averageBitrate!==null&&(k.averageBitrate=Math.max(k.averageBitrate??-1/0,g.averageBitrate)),k.languageCode===At&&(k.languageCode=g.languageCode)):(g.id=p.length+1,p.push(g))};for(const g of m)for(const k of g)y(k);p.sort((g,k)=>g.lineNumber-k.lineNumber),this.trackBackings=[];for(const g of p)g.info.type==="video"?this.trackBackings.push(new K0(g)):this.trackBackings.push(new Y0(g));this.internalTracks=p})()}async getTrackBackings(){return await this.readMetadata(),x(this.trackBackings),this.trackBackings}getSegmentedInputForPath(n){let i=this.segmentedInputs.find(o=>o.path===n);if(i)return i;let r=null;return this.internalTracks&&(r=this.internalTracks.filter(u=>u.fullPath===n).map(u=>({id:u.id,type:u.info.type}))),i=new zg(this,n,r,null),this.segmentedInputs.push(i),i}async getMetadataTags(){return{}}async getMimeType(){return H0}dispose(){if(this.segmentedInputs){for(const n of this.segmentedInputs)n.dispose();this.segmentedInputs.length=0}}}class G0{constructor(n){this.internalTrack=n,this.hydrationPromise=null}hydrate(){return this.hydrationPromise??=(async()=>{const n=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let i=null;const o=(await n.getTrackBackings()).filter(u=>u.getType()===this.getType());if(o.length===1)i=o[0];else if(this instanceof K0){for(const u of o)if(await u.getCodec()===this.getCodec()){i=u;break}}else{x(this instanceof Y0);for(const u of o)if(await u.getCodec()===this.getCodec()){i=u;break}}if(!i)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=i})()}delegate(n){return this.internalTrack.backingTrack?n():this.hydrate().then(n)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return{...ea,default:this.internalTrack.autoselect,primary:this.internalTrack.default}}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){x(this.internalTrack.demuxer.internalTracks);const n=this.internalTrack.info.type;let i=0;for(const r of this.internalTrack.demuxer.internalTracks)if(r.info.type===n&&i++,r===this.internalTrack)break;return i}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(n){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(n))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}async getDurationFromMetadata(n){return await this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(n)}async getLiveRefreshInterval(){return await this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}async getFirstPacket(n){return await this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(n)}async getPacket(n,i){return await this.hydrate(),this.internalTrack.backingTrack.getPacket(n,i)}async getKeyPacket(n,i){return await this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(n,i)}async getNextPacket(n,i){return await this.hydrate(),this.internalTrack.backingTrack.getNextPacket(n,i)}async getNextKeyPacket(n,i){return await this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(n,i)}}class K0 extends G0{constructor(n){super(n)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return As(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}async getColorSpace(){return await this.hydrate(),this.backingVideoTrack.getColorSpace()}async canBeTransparent(){return await this.hydrate(),this.backingVideoTrack.canBeTransparent()}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingVideoTrack.getDecoderConfig()}}class Y0 extends G0{constructor(n){super(n)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return As(this.internalTrack.fullCodecString)}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels!==null?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingAudioTrack.getDecoderConfig()}}const ro=l=>{const n=l.get("default");if(n===null)return!1;const i=n.toUpperCase();if(i==="YES")return!0;if(i==="NO")return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${n}".`)},Mg=l=>{const n=l.get("autoselect");if(n===null)return!1;const i=n.toUpperCase();if(i==="YES")return!0;if(i==="NO")return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${n}".`)},Ng=l=>{if(l===null)return At;const n=l.split("-")[0];return n||At};class _n{constructor(){this._isIsobmff=!1}}class Q0 extends _n{constructor(){super(...arguments),this._isIsobmff=!0}async _getMajorBrand(n){let i=n._reader.requestSlice(0,12);if(i instanceof Promise&&(i=await i),!i)return null;i.skip(4);const r=Je(i,4);return r!=="ftyp"&&r!=="styp"?null:Je(i,4)}_createDemuxer(n){return new Vf(n)}}class E1 extends Q0{async _canReadInput(n){const i=await this._getMajorBrand(n);if(i!==null)return i!=="qt ";let r=n._reader.requestSlice(4,4);if(r instanceof Promise&&(r=await r),!r)return!1;const o=Je(r,4);return o==="moof"||o==="sidx"}get name(){return"MP4"}get mimeType(){return"video/mp4"}}class A1 extends Q0{async _canReadInput(n){return await this._getMajorBrand(n)==="qt "}get name(){return"QuickTime File Format"}get mimeType(){return"video/quicktime"}}class Z0 extends _n{async isSupportedEBMLOfDocType(n,i){let r=n._reader.requestSlice(0,Zn);if(r instanceof Promise&&(r=await r),!r)return!1;const o=R0(r);if(o===null||o<1||o>8||we(r,o)!==K.EBML)return!1;const c=O0(r);if(typeof c!="number")return!1;let d=n._reader.requestSlice(r.filePos,c);if(d instanceof Promise&&(d=await d),!d)return!1;const m=r.filePos;for(;d.filePos<=m+c-un;){const p=Qn(d);if(!p)break;const{id:y,size:g}=p,k=d.filePos;if(g===void 0)return!1;switch(y){case K.EBMLVersion:if(we(d,g)!==1)return!1;break;case K.EBMLReadVersion:if(we(d,g)!==1)return!1;break;case K.DocType:if(rr(d,g)!==i)return!1;break;case K.DocTypeVersion:if(we(d,g)>4)return!1;break}d.filePos=k+g}return!0}_canReadInput(n){return this.isSupportedEBMLOfDocType(n,"matroska")}_createDemuxer(n){return new FS(n)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class P1 extends Z0{_canReadInput(n){return this.isSupportedEBMLOfDocType(n,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class B1 extends _n{async _canReadInput(n){let i=0;for(;;){let g=n._reader.requestSlice(i,fn);if(g instanceof Promise&&(g=await g),!g)break;const k=$n(g);if(!k)break;i=g.filePos+k.size}const r=await vf(n._reader,i,i+4096);if(!r)return!1;const o=r.header,u=u0(o.mpegVersionId,o.channel);let c=n._reader.requestSlice(r.startPos+u,4);if(c instanceof Promise&&(c=await c),!c)return!1;const d=ee(c);if(d===o0||d===c0)return!0;i=r.startPos+r.header.totalSize;const p=await vf(n._reader,i,i+oi);if(!p)return!1;const y=p.header;return!(o.channel!==y.channel||o.sampleRate!==y.sampleRate)}_createDemuxer(n){return new LS(n)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class D1 extends _n{async _canReadInput(n){let i=n._reader.requestSlice(0,12);if(i instanceof Promise&&(i=await i),!i)return!1;const r=Je(i,4);return r!=="RIFF"&&r!=="RIFX"&&r!=="RF64"?!1:(i.skip(4),Je(i,4)==="WAVE")}_createDemuxer(n){return new JS(n)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class I1 extends _n{async _canReadInput(n){let i=n._reader.requestSlice(0,4);return i instanceof Promise&&(i=await i),i?Je(i,4)==="OggS":!1}_createDemuxer(n){return new ZS(n)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class R1 extends _n{async _canReadInput(n){let i=0;for(;;){let o=n._reader.requestSlice(i,fn);if(o instanceof Promise&&(o=await o),!o)break;const u=$n(o);if(!u)break;i=o.filePos+u.size}let r=n._reader.requestSlice(i,4);return r instanceof Promise&&(r=await r),r?Je(r,4)==="fLaC":!1}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(n){return new o1(n)}}class O1 extends _n{async _canReadInput(n){let i=0;for(;;){let c=n._reader.requestSlice(i,fn);if(c instanceof Promise&&(c=await c),!c)break;const d=$n(c);if(!d)break;i=c.filePos+d.size}let r=n._reader.requestSliceRange(i,wf,mr);if(r instanceof Promise&&(r=await r),!r)return!1;const o=Us(r);if(!o||(i+=o.frameLength,r=n._reader.requestSliceRange(i,wf,mr),r instanceof Promise&&(r=await r),!r))return!1;const u=Us(r);return u?o.objectType===u.objectType&&o.samplingFrequencyIndex===u.samplingFrequencyIndex&&o.channelConfiguration===u.channelConfiguration:!1}_createDemuxer(n){return new e1(n)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class z1 extends _n{async _canReadInput(n){const i=Qt+16+1;let r=n._reader.requestSlice(0,i);if(r instanceof Promise&&(r=await r),!r)return!1;const o=fe(r,i);return o[0]===71&&o[Qt]===71||o[0]===71&&o[Qt+16]===71?!0:o[4]===71&&o[4+Qt+4]===71}_createDemuxer(n){return new f1(n)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class W0 extends _n{async _canReadInput(n){let i=n._reader.requestSlice(0,7);if(i instanceof Promise&&(i=await i),!i||!(Je(i,7)==="#EXTM3U"))return!1;if(!(n._rootSource instanceof qs))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return n._rootSource._usedForHls=!0,!0}_createDemuxer(n){return new _1(n)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return H0}}const M1=new E1,N1=new A1,U1=new Z0,F1=new P1,q1=new B1,H1=new D1,L1=new I1,V1=new O1,j1=new R1,X1=new z1,G1=new W0,K1=[G1,M1,N1,U1,F1,H1,L1,j1,q1,V1,X1],Y1=(l,n)=>{if(!l||typeof l!="object")throw new TypeError(`${n}, when provided, must be an object.`);if(l.isobmff!==void 0){if(!l.isobmff||typeof l.isobmff!="object")throw new TypeError(`${n}.isobmff, when provided, must be an object.`);if(l.isobmff.resolveKeyId!==void 0&&typeof l.isobmff.resolveKeyId!="function")throw new TypeError(`${n}.isobmff.resolveKeyId, when provided, must be a function.`)}if(l.hls!==void 0){if(!l.hls||typeof l.hls!="object")throw new TypeError(`${n}.hls, when provided, must be an object.`);if(l.hls.offsetTimestampsByDateTime!==void 0&&typeof l.hls.offsetTimestampsByDateTime!="boolean")throw new TypeError(`${n}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}};Rf();let Ug=-1/0,Fg=-1/0,_f=null;typeof FinalizationRegistry<"u"&&(_f=new FinalizationRegistry(l=>{const n=performance.now();l.type==="video"?(n-Ug>=1e3&&(ke._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."),Ug=n),typeof VideoFrame<"u"&&l.data instanceof VideoFrame&&l.data.close()):(n-Fg>=1e3&&(ke._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."),Fg=n),typeof AudioData<"u"&&l.data instanceof AudioData&&l.data.close())}));const Q1=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"];new Set(Q1);const so=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]);class ks{constructor(){this._referenceCount=0}}class xn{get microsecondTimestamp(){return Math.trunc(yo*this.timestamp)}get microsecondDuration(){return Math.trunc(yo*this.duration)}constructor(n){if(this._closed=!1,bs(n)){if(n.format===null)throw new TypeError("AudioData with null format is not supported.");this._data=n,this.format=n.format,this.sampleRate=n.sampleRate,this.numberOfFrames=n.numberOfFrames,this.numberOfChannels=n.numberOfChannels,this.timestamp=n.timestamp/1e6,this.duration=n.numberOfFrames/n.sampleRate}else if(n instanceof ks){if(this._data=n,n._referenceCount++,this.format=n.getFormat(),!so.has(this.format))throw new TypeError("getFormat() must return an AudioSampleFormat.");if(this.sampleRate=n.getSampleRate(),!Number.isInteger(this.sampleRate)||this.sampleRate<=0)throw new TypeError("getSampleRate() must return a positive integer.");if(this.numberOfFrames=n.getNumberOfFrames(),!Number.isInteger(this.numberOfFrames)||this.numberOfFrames<0)throw new TypeError("getNumberOfFrames() must return a non-negative integer.");if(this.numberOfChannels=n.getNumberOfChannels(),!Number.isInteger(this.numberOfChannels)||this.numberOfChannels<=0)throw new TypeError("getNumberOfChannels() must return a positive integer.");if(this.timestamp=n.getTimestamp(),!Number.isFinite(this.timestamp))throw new TypeError("getTimestamp() must return a finite number.");this.duration=this.numberOfFrames/this.sampleRate}else{if(!n||typeof n!="object")throw new TypeError("Invalid AudioDataInit: must be an object.");if(!so.has(n.format))throw new TypeError("Invalid AudioDataInit: invalid format.");if(!Number.isFinite(n.sampleRate)||n.sampleRate<=0)throw new TypeError("Invalid AudioDataInit: sampleRate must be > 0.");if(!Number.isInteger(n.numberOfChannels)||n.numberOfChannels===0)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(n?.timestamp))throw new TypeError("init.timestamp must be a number.");const i=n.data.byteLength/(Ba(n.format)*n.numberOfChannels);if(!Number.isInteger(i))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");this.format=n.format,this.sampleRate=n.sampleRate,this.numberOfFrames=i,this.numberOfChannels=n.numberOfChannels,this.timestamp=n.timestamp,this.duration=i/n.sampleRate;let r;if(n.data instanceof ArrayBuffer)r=new Uint8Array(n.data);else if(ArrayBuffer.isView(n.data))r=new Uint8Array(n.data.buffer,n.data.byteOffset,n.data.byteLength);else throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");const o=this.numberOfFrames*this.numberOfChannels*Ba(this.format);if(r.byteLength=this.numberOfFrames)throw new RangeError("frameOffset out of range");const o=n.frameCount!==void 0?n.frameCount:this.numberOfFrames-r;if(o>this.numberOfFrames-r)throw new RangeError("frameCount out of range");const u=Ba(i),c=ai(i);if(c&&n.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!c&&n.planeIndex!==0)throw new RangeError("planeIndex out of range");return(c?o:o*this.numberOfChannels)*u}copyTo(n,i){if(!Lb(n))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!i||typeof i!="object")throw new TypeError("options must be an object.");if(!Number.isInteger(i.planeIndex)||i.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(i.format!==void 0&&!so.has(i.format))throw new TypeError("Invalid format.");if(i.frameOffset!==void 0&&(!Number.isInteger(i.frameOffset)||i.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(i.frameCount!==void 0&&(!Number.isInteger(i.frameCount)||i.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:r,frameCount:o,frameOffset:u}=i;let{planeIndex:c}=i;const d=this.format,m=r??this.format;if(!m)throw new Error("Destination format not determined");const p=this.numberOfFrames,y=this.numberOfChannels,g=u??0;if(g>=p)throw new RangeError("frameOffset out of range");const k=o!==void 0?o:p-g;if(k>p-g)throw new RangeError("frameCount out of range");const T=Ba(m),w=ai(m);if(w&&c>=y)throw new RangeError("planeIndex out of range");if(!w&&c!==0)throw new RangeError("planeIndex out of range");const E=(w?k:k*y)*T;if(n.byteLength2&&m!==d?Z1(this._data,_,d,m,y,c,g,k):this._data.copyTo(n,{planeIndex:c,frameOffset:g,frameCount:k,format:m});else{const B=J0(d),P=Ba(d),D=ai(d);let z;if(this._data instanceof ks){const L=I=>{const X=this._data.getDataPlane(I);if(!(X instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const J=p*P*(D?1:y);if(X.byteLength!==J)throw new TypeError(`Data plane ${I} has invalid size. Expected exactly ${J} bytes, got ${X.byteLength} bytes.`);return X};if(D)if(w)z=L(c),c=0;else{z=new Uint8Array(p*P*y);for(let I=0;Ithis.numberOfFrames)throw new RangeError("startSample out of range.");if(i>this.numberOfFrames)throw new RangeError("endSample out of range.");if(i0)for(let d=0;d0&&this.copyTo(u,{planeIndex:0,format:this.format,frameOffset:n,frameCount:r});return new xn({data:u,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+n/this.sampleRate})}close(){this._closed||(_f?.unregister(this),this._data instanceof ks?(this._data._referenceCount--,this._data._referenceCount===0&&this._data.close()):bs(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof ks?this._createAudioDataFromData():bs(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(ai(this.format)){const n=this.allocationSize({planeIndex:0,format:this.format}),i=new ArrayBuffer(n*this.numberOfChannels);for(let r=0;r0;){const y=Math.min(d,p),g=new Float32Array(o*y);for(let k=0;k0;){const g=Math.min(d,p),k=new Float32Array(o*g);for(let w=0;w{switch(l){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":return 4;case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},ai=l=>{switch(l){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},J0=l=>{switch(l){case"u8":case"u8-planar":return(n,i)=>(n.getUint8(i)-128)/128;case"s16":case"s16-planar":return(n,i)=>n.getInt16(i,!0)/32768;case"s32":case"s32-planar":return(n,i)=>n.getInt32(i,!0)/2147483648;case"f32":case"f32-planar":return(n,i)=>n.getFloat32(i,!0)}},$0=l=>{switch(l){case"u8":case"u8-planar":return(n,i,r)=>n.setUint8(i,fr((r+1)*127.5,0,255));case"s16":case"s16-planar":return(n,i,r)=>n.setInt16(i,fr(Math.round(r*32767),-32768,32767),!0);case"s32":case"s32-planar":return(n,i,r)=>n.setInt32(i,fr(Math.round(r*2147483647),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(n,i,r)=>n.setFloat32(i,r,!0)}},bs=l=>typeof AudioData<"u"&&l instanceof AudioData,Z1=(l,n,i,r,o,u,c,d)=>{const m=J0(i),p=$0(r),y=Ba(i),g=Ba(r),k=ai(i);if(ai(r))if(k){const w=new ArrayBuffer(d*y),S=Re(w);l.copyTo(w,{planeIndex:u,frameOffset:c,frameCount:d,format:i});for(let E=0;E{let i=0,r=0,o=~l;o&128&&(o&=-129,i=-1),r=((o&240)>>4)+5;const u=(1<{let n=0,i=0,r=l^85;r&128&&(r&=-129,n=-1),i=((r&240)>>4)+4;let o=0;return i!==4?o=1<{if(!l||typeof l!="object")throw new TypeError("options must be an object.");if(l.metadataOnly!==void 0&&typeof l.metadataOnly!="boolean")throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(l.verifyKeyPackets!==void 0&&typeof l.verifyKeyPackets!="boolean")throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(l.verifyKeyPackets&&l.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(l.skipLiveWait!==void 0&&typeof l.skipLiveWait!="boolean")throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},ci=l=>{if(!Of(l))throw new TypeError("timestamp must be a number.")},uf=(l,n,i)=>i.verifyKeyPackets?n.then(async r=>{if(!r||r.type==="delta")return r;const o=await l.determinePacketType(r);return o&&(r.type=o),r}):n;class ty{constructor(n){if(!(n instanceof Hs))throw new TypeError("track must be an InputTrack.");this._track=n}async getFirstPacket(n={}){if(ti(n),this._track.input._disposed)throw new Et;return uf(this._track,this._track._backing.getFirstPacket(n),n)}async getFirstKeyPacket(n={}){ti(n);const i=await this.getFirstPacket(n);return i?i.type==="key"?i:this.getNextKeyPacket(i,n):null}async getPacket(n,i={}){if(ci(n),ti(i),this._track.input._disposed)throw new Et;return uf(this._track,this._track._backing.getPacket(n,i),i)}async getNextPacket(n,i={}){if(!(n instanceof ht))throw new TypeError("packet must be an EncodedPacket.");if(ti(i),this._track.input._disposed)throw new Et;return uf(this._track,this._track._backing.getNextPacket(n,i),i)}async getKeyPacket(n,i={}){if(ci(n),ti(i),this._track.input._disposed)throw new Et;if(!i.verifyKeyPackets)return this._track._backing.getKeyPacket(n,i);const r=await this._track._backing.getKeyPacket(n,i);return r&&(x(r.type==="key"),await this._track.determinePacketType(r)==="delta"?this.getKeyPacket(r.timestamp-1/await this._track.getTimeResolution(),i):r)}async getNextKeyPacket(n,i={}){if(!(n instanceof ht))throw new TypeError("packet must be an EncodedPacket.");if(ti(i),this._track.input._disposed)throw new Et;if(!i.verifyKeyPackets)return this._track._backing.getNextKeyPacket(n,i);const r=await this._track._backing.getNextKeyPacket(n,i);return r&&(x(r.type==="key"),await this._track.determinePacketType(r)==="delta"?this.getNextKeyPacket(r,i):r)}packets(n,i,r={}){if(n!==void 0&&!(n instanceof ht))throw new TypeError("startPacket must be an EncodedPacket.");if(n!==void 0&&n.isMetadataOnly&&!r?.metadataOnly)throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(i!==void 0&&!(i instanceof ht))throw new TypeError("endPacket must be an EncodedPacket.");if(ti(r),this._track.input._disposed)throw new Et;const o=[];let{promise:u,resolve:c}=Nt(),{promise:d,resolve:m}=Nt(),p=!1,y=!1,g=null,k=!1;const T=[],w=()=>Math.max(2,T.length);(async()=>{let E=n??await this.getFirstPacket(r);for(;E&&!y&&!this._track.input._disposed&&!(i&&E.sequenceNumber>=i?.sequenceNumber);){if(o.length>w()){({promise:d,resolve:m}=Nt()),await d;continue}o.push(E),c(),{promise:u,resolve:c}=Nt(),E=await this.getNextPacket(E,r)}p=!0,c()})().catch(E=>{k||(g=E,k=!0,c())});const S=this._track;return{async next(){for(;;){if(S.input._disposed)throw new Et;if(y)return{value:void 0,done:!0};if(k)throw g;if(o.length>0){const E=o.shift(),_=performance.now();for(T.push(_);T.length>0&&_-T[0]>=1e3;)T.shift();return m(),{value:E,done:!1}}else{if(p)return{value:void 0,done:!0};await u}}},async return(){return y=!0,m(),c(),{value:void 0,done:!0}},async throw(E){throw E},[Symbol.asyncIterator](){return this}}}}class ny{constructor(n,i){this.onSample=n,this.onError=i}}class eT{mediaSamplesInRange(n=-1/0,i=1/0,r){ci(n),ci(i);const o=[];let u=!1,c=null,{promise:d,resolve:m}=Nt(),{promise:p,resolve:y}=Nt(),g=!1,k=!1,T=!1,w=null,S=!1;const E={...r,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{const B=await this._createDecoder(I=>{if(y(),I.timestamp>=i&&(k=!0),k){I.close();return}c&&(I.timestamp>n?(o.push(c),u=!0):c.close()),I.timestamp>=n&&(o.push(I),u=!0),c=u?null:I,o.length>0&&(m(),{promise:d,resolve:m}=Nt())},I=>{S||(w=I,S=!0,m())}),P=this._createPacketSink(),D=await P.getKeyPacket(n,E)??await P.getFirstKeyPacket(E);let z=D;const L=P.packets(D??void 0,void 0,E);for(await L.next();z&&!k&&!this._track.input._disposed;){const I=qg(o.length);if(o.length+B.getDecodeQueueSize()>I){({promise:p,resolve:y}=Nt()),await p;continue}B.decode(z);const X=await L.next();if(X.done)break;z=X.value}await L.return(),!T&&!this._track.input._disposed&&await B.flush(),B.close(),!u&&c&&o.push(c),g=!0,m()})().catch(B=>{S||(w=B,S=!0,m())});const _=this._track,C=()=>{c?.close();for(const B of o)B.close()};return{async next(){for(;;){if(_.input._disposed)throw C(),new Et;if(T)return{value:void 0,done:!0};if(S)throw C(),w;if(o.length>0){const B=o.shift();return y(),{value:B,done:!1}}else if(!g)await d;else return{value:void 0,done:!0}}},async return(){return T=!0,k=!0,y(),m(),C(),{value:void 0,done:!0}},async throw(B){throw B},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(n,i){Kb(n);const r=Gb(n),o=[],u=[];let{promise:c,resolve:d}=Nt(),{promise:m,resolve:p}=Nt(),y=!1,g=!1,k=null,T=!1;const w=C=>{u.push(C),d(),{promise:c,resolve:d}=Nt()},S={...i,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{const C=await this._createDecoder(I=>{if(p(),g){I.close();return}let X=0;for(;o.length>0&&I.timestamp-o[0]>-1e-10;)X++,o.shift();if(X>0)for(let J=0;J{T||(k=I,T=!0,d())}),B=this._createPacketSink();let P=null,D=null,z=-1;const H=async()=>{x(D);let I=D;for(C.decode(I);I.sequenceNumberX&&!g;)({promise:m,resolve:p}=Nt()),await m;if(g)break;const J=await B.getNextPacket(I,S);x(J),C.decode(J),I=J}z=-1},L=async()=>{await C.flush();for(let I=0;I{T||(k=C,T=!0,d())});const E=this._track,_=()=>{for(const C of u)C?.close()};return{async next(){for(;;){if(E.input._disposed)throw _(),new Et;if(g)return{value:void 0,done:!0};if(T)throw _(),k;if(u.length>0){const C=u.shift();return x(C!==void 0),p(),{value:C,done:!1}}else if(!y)await c;else return{value:void 0,done:!0}}},async return(){return g=!0,p(),d(),_(),{value:void 0,done:!0}},async throw(C){throw C},[Symbol.asyncIterator](){return this}}}}const qg=l=>l===0?40:8;class tT extends ny{constructor(n,i,r,o){super(n,i),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new Jb,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const u=d=>{let m=d.timestamp;this.expectedFirstTimestamp&&this.currentTimestamp===null&&(this.timestampOffset=this.expectedFirstTimestamp-m),m+=this.timestampOffset,(this.currentTimestamp===null||Math.abs(m-this.currentTimestamp)>=d.duration)&&(this.currentTimestamp=m);const p=this.currentTimestamp;if(this.currentTimestamp+=d.duration,d.numberOfFrames===0){d.close();return}const y=o.sampleRate;d.setTimestamp(Math.round(p*y)/y),n(d)},c=ey.find(d=>d.supports(r,o));if(c)this.customDecoder=new c,this.customDecoder.codec=r,this.customDecoder.config=o,this.customDecoder.onSample=d=>{if(!(d instanceof xn))throw new TypeError("The argument passed to onSample must be an AudioSample.");u(d)},this.customDecoder.onError=d=>{i(d)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(d=>i(d));else{const d=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:m=>{try{u(new xn(m))}catch(p){this.onError(p)}},error:m=>{m.stack=d,this.onError(m)}}),this.decoder.configure(o)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(x(this.decoder),this.decoder.decodeQueueSize)}decode(n){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(n)).catch(i=>this.onError(i)).finally(()=>this.customDecoderQueueSize--)):(x(this.decoder),this.expectedFirstTimestamp??=n.timestamp,this.decoder.decode(n.toEncodedAudioChunk()))}async flush(){this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(x(this.decoder),await this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(x(this.decoder),this.decoder.close())}}class nT extends ny{constructor(n,i,r){super(n,i),this.decoderConfig=r,this.currentTimestamp=null,x(gr.includes(r.codec)),this.codec=r.codec;const{dataType:o,sampleSize:u,littleEndian:c}=l0(this.codec);switch(this.inputSampleSize=u,u){case 1:o==="unsigned"?this.readInputValue=(d,m)=>d.getUint8(m)-2**7:o==="signed"?this.readInputValue=(d,m)=>d.getInt8(m):o==="ulaw"?this.readInputValue=(d,m)=>J1(d.getUint8(m)):o==="alaw"?this.readInputValue=(d,m)=>$1(d.getUint8(m)):x(!1);break;case 2:o==="unsigned"?this.readInputValue=(d,m)=>d.getUint16(m,c)-2**15:o==="signed"?this.readInputValue=(d,m)=>d.getInt16(m,c):x(!1);break;case 3:o==="unsigned"?this.readInputValue=(d,m)=>xo(d,m,c)-2**23:o==="signed"?this.readInputValue=(d,m)=>Yb(d,m,c):x(!1);break;case 4:o==="unsigned"?this.readInputValue=(d,m)=>d.getUint32(m,c)-2**31:o==="signed"?this.readInputValue=(d,m)=>d.getInt32(m,c):o==="float"?this.readInputValue=(d,m)=>d.getFloat32(m,c):x(!1);break;case 8:o==="float"?this.readInputValue=(d,m)=>d.getFloat64(m,c):x(!1);break;default:Rs(u),x(!1)}switch(u){case 1:o==="ulaw"||o==="alaw"?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(d,m,p)=>d.setInt16(m,p,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(d,m,p)=>d.setUint8(m,p+2**7));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(d,m,p)=>d.setInt16(m,p,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(d,m,p)=>d.setInt32(m,p<<8,!0);break;case 4:this.outputSampleSize=4,o==="float"?(this.outputFormat="f32",this.writeOutputValue=(d,m,p)=>d.setFloat32(m,p,!0)):(this.outputFormat="s32",this.writeOutputValue=(d,m,p)=>d.setInt32(m,p,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(d,m,p)=>d.setFloat32(m,p,!0);break;default:Rs(u),x(!1)}}getDecodeQueueSize(){return 0}decode(n){const i=Re(n.data),r=n.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,o=r*this.decoderConfig.numberOfChannels*this.outputSampleSize,u=new ArrayBuffer(o),c=new DataView(u);for(let y=0;y=d)&&(this.currentTimestamp=n.timestamp);const m=this.currentTimestamp;this.currentTimestamp+=d;const p=new xn({format:this.outputFormat,data:u,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:r,timestamp:m});this.onSample(p)}async flush(){}close(){}}class aT extends eT{constructor(n){if(!(n instanceof Bo))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=n}async _createDecoder(n,i){if(!await this._track.canDecode())throw new Error("This audio track cannot be decoded by this browser. Make sure to check decodability before using a track.");const r=await this._track.getCodec(),o=await this._track.getDecoderConfig();return x(r&&o),gr.includes(o.codec)?new nT(n,i,o):new tT(n,i,r,o)}_createPacketSink(){return new ty(this._track)}async getSample(n,i={}){ci(n);for await(const r of this.mediaSamplesAtTimestamps([n],i))return r;throw new Error("Internal error: Iterator returned nothing.")}samples(n,i,r={}){return this.mediaSamplesInRange(n,i,r)}samplesAtTimestamps(n,i={}){return this.mediaSamplesAtTimestamps(n,i)}}class iT{constructor(n){if(!(n instanceof Bo))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new aT(n)}_audioSampleToWrappedArrayBuffer(n){const i={buffer:n.toAudioBuffer(),timestamp:n.timestamp,duration:n.duration};return n.close(),i}async getBuffer(n,i){ci(n);const r=await this._audioSampleSink.getSample(n,i);return r&&this._audioSampleToWrappedArrayBuffer(r)}buffers(n,i,r){return tg(this._audioSampleSink.samples(n,i,r),o=>this._audioSampleToWrappedArrayBuffer(o))}buffersAtTimestamps(n,i){return tg(this._audioSampleSink.samplesAtTimestamps(n,i),r=>r&&this._audioSampleToWrappedArrayBuffer(r))}}class Hs{constructor(n,i){this.input=n,this._backing=i}isVideoTrack(){return this instanceof ay}isAudioTrack(){return this instanceof Bo}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}async getInternalCodecId(){return this._backing.getInternalCodecId()}get internalCodecId(){return Ze(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}async getLanguageCode(){return this._backing.getLanguageCode()}get languageCode(){return Ze(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}async getName(){return this._backing.getName()}get name(){return Ze(this._backing.getName(),"name","getName")}async getTimeResolution(){return this._backing.getTimeResolution()}get timeResolution(){return Ze(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}async isRelativeToUnixEpoch(){return this._backing.isRelativeToUnixEpoch()}async getUnixTimeForTimestamp(n){return this._backing.getUnixTimeForTimestamp(n)}async hasUnixTimeMapping(){return await this._backing.getUnixTimeForTimestamp(await this.getFirstTimestamp())!==null}async getDisposition(){return this._backing.getDisposition()}get disposition(){return Ze(this._backing.getDisposition(),"disposition","getDisposition")}async getBitrate(){return this._backing.getBitrate()}async getAverageBitrate(){return this._backing.getAverageBitrate()}async getFirstTimestamp(){return(await this._backing.getFirstPacket({metadataOnly:!0}))?.timestamp??0}async computeDuration(n){const i=await this._backing.getPacket(1/0,{metadataOnly:!0,...n}),r=(i?.timestamp??0)+(i?.duration??0);return e0(r,await this.getTimeResolution())}async getDurationFromMetadata(n={}){return this._backing.getDurationFromMetadata(n)}async computePacketStats(n=1/0,i){const r=new ty(this);let o=1/0,u=-1/0,c=0,d=0;for await(const m of r.packets(void 0,void 0,{metadataOnly:!0,...i})){if(c>=n&&m.timestamp>=u)break;o=Math.min(o,m.timestamp),u=Math.max(u,m.timestamp+m.duration),c++,d+=m.byteLength}return{packetCount:c,averagePacketRate:c?Number((c/(u-o)).toPrecision(16)):0,averageBitrate:c?Number((8*d/(u-o)).toPrecision(16)):0}}async isLive(){return await this._backing.getLiveRefreshInterval()!==null}async getLiveRefreshInterval(){return this._backing.getLiveRefreshInterval()}canBePairedWith(n){if(!(n instanceof Hs))throw new TypeError("other must be an InputTrack.");return this.input!==n.input||this===n?!1:(this._backing.getPairingMask()&n._backing.getPairingMask())!==0n}async getPairableTracks(n){return this.input.getTracks(ii({filter:i=>i.canBePairedWith(this)},n))}async getPairableVideoTracks(n){return this.input.getVideoTracks(ii({filter:i=>i.canBePairedWith(this)},n))}async getPairableAudioTracks(n){return this.input.getAudioTracks(ii({filter:i=>i.canBePairedWith(this)},n))}async getPrimaryPairableVideoTrack(n){return this.input.getPrimaryVideoTrack(ii({filter:i=>i.canBePairedWith(this)},n))}async getPrimaryPairableAudioTrack(n){return this.input.getPrimaryAudioTrack(ii({filter:i=>i.canBePairedWith(this)},n))}async hasPairableTrack(n){n&&=ff(n);const i=await this.input.getTracks();for(const r of i)if(this.canBePairedWith(r)&&(!n||await n(r)))return!0;return!1}hasPairableVideoTrack(n){return n&&=ff(n),this.hasPairableTrack(async i=>i.isVideoTrack()&&(!n||await n(i)))}hasPairableAudioTrack(n){return n&&=ff(n),this.hasPairableTrack(async i=>i.isAudioTrack()&&(!n||await n(i)))}}const Ze=(l,n,i)=>{if(l instanceof Promise)throw new Error(`'${n}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return l},ff=l=>{if(l!==void 0&&typeof l!="function")throw new TypeError("predicate, when provided, must be a function.");return l?n=>{const i=o=>{if(typeof o!="boolean")throw new TypeError("predicate must return or resolve to a boolean value.");return o},r=l(n);return r instanceof Promise?r.then(i):i(r)}:void 0};class ay extends Hs{constructor(n,i){super(n,i),this._pixelAspectRatioCache=null,this._backing=i}get type(){return"video"}async getCodec(){return this._backing.getCodec()}get codec(){return Ze(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await this._backing.getHasOnlyKeyPackets?.()??await this._backing.getCodec()==="prores"}async getCodedWidth(){return this._backing.getCodedWidth()}get codedWidth(){return Ze(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}async getCodedHeight(){return this._backing.getCodedHeight()}get codedHeight(){return Ze(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}async getRotation(){return this._backing.getRotation()}get rotation(){return Ze(this._backing.getRotation(),"rotation","getRotation")}async getSquarePixelWidth(){return this._backing.getSquarePixelWidth()}get squarePixelWidth(){return Ze(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}async getSquarePixelHeight(){return this._backing.getSquarePixelHeight()}get squarePixelHeight(){return Ze(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}async getPixelAspectRatio(){return this._pixelAspectRatioCache??=ag({num:await this.getSquarePixelWidth()*await this.getCodedHeight(),den:await this.getSquarePixelHeight()*await this.getCodedWidth()})}get pixelAspectRatio(){return this._pixelAspectRatioCache??=ag({num:Ze(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*Ze(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:Ze(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*Ze(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")})}async getDisplayWidth(){const n=await this._backing.getMetadataDisplayWidth?.();return n??(await this.getRotation()%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight())}get displayWidth(){const n=this._backing.getMetadataDisplayWidth?.();if(n!==void 0){const o=Ze(n,"displayWidth","getDisplayWidth");if(o!==null)return o}const r=Ze(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return Ze(r,"displayWidth","getDisplayWidth")}async getDisplayHeight(){const n=await this._backing.getMetadataDisplayHeight?.();return n??(await this.getRotation()%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth())}get displayHeight(){const n=this._backing.getMetadataDisplayHeight?.();if(n!==void 0){const o=Ze(n,"displayHeight","getDisplayHeight");if(o!==null)return o}const r=Ze(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return Ze(r,"displayHeight","getDisplayHeight")}async getColorSpace(){return this._backing.getColorSpace()}async hasHighDynamicRange(){const n=await this._backing.getColorSpace();return n.primaries==="bt2020"||n.primaries==="smpte432"||n.transfer==="pq"||n.transfer==="hlg"||n.matrix==="bt2020-ncl"}async canBeTransparent(){return this._backing.canBeTransparent()}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const n=await this._backing.getMetadataCodecParameterString?.();return n??(await this._backing.getDecoderConfig())?.codec??null}async canDecode(){try{const n=await this._backing.getDecoderConfig();if(!n)return!1;const i=await this._backing.getCodec();return x(i!==null),W1.some(o=>o.supports(i,n))?!0:typeof VideoDecoder>"u"?!1:(await VideoDecoder.isConfigSupported(n)).supported===!0}catch(n){return ke._error("Error during decodability check:",n),!1}}async determinePacketType(n){if(!(n instanceof ht))throw new TypeError("packet must be an EncodedPacket.");if(n.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const i=await this.getCodec();if(i===null)return null;const r=await this.getDecoderConfig();return x(r),T0(i,r,n.data)}}class Bo extends Hs{constructor(n,i){super(n,i),this._backing=i}get type(){return"audio"}async getCodec(){return this._backing.getCodec()}get codec(){return Ze(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await this._backing.getHasOnlyKeyPackets?.()??!0}async getNumberOfChannels(){return this._backing.getNumberOfChannels()}get numberOfChannels(){return Ze(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}async getSampleRate(){return this._backing.getSampleRate()}get sampleRate(){return Ze(this._backing.getSampleRate(),"sampleRate","getSampleRate")}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const n=await this._backing.getMetadataCodecParameterString?.();return n??(await this._backing.getDecoderConfig())?.codec??null}async canDecode(){try{const n=await this._backing.getDecoderConfig();if(!n)return!1;const i=await this._backing.getCodec();return x(i!==null),ey.some(r=>r.supports(i,n))||n.codec.startsWith("pcm-")?!0:typeof AudioDecoder>"u"?!1:(await AudioDecoder.isConfigSupported(n)).supported===!0}catch(n){return ke._error("Error during decodability check:",n),!1}}async determinePacketType(n){if(!(n instanceof ht))throw new TypeError("packet must be an EncodedPacket.");return await this.getCodec()===null?null:"key"}}const Hg=l=>-(l??-1/0),Ss=l=>-l,Ts=l=>{if(typeof l!="object"||!l)throw new TypeError("query must be an object.");if(l.filter!==void 0&&typeof l.filter!="function")throw new TypeError("query.filter, when provided, must be a function.");if(l.sortBy!==void 0&&typeof l.sortBy!="function")throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:l.filter?n=>{const i=o=>{if(typeof o!="boolean")throw new TypeError("query.filter must return or resolve to a boolean.");return o},r=l.filter(n);return r instanceof Promise?r.then(i):i(r)}:void 0,sortBy:l.sortBy?n=>{const i=o=>{if(typeof o!="number"&&(!Array.isArray(o)||!o.every(u=>typeof u=="number")))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return o},r=l.sortBy(n);return r instanceof Promise?r.then(i):i(r)}:void 0}},ii=(l,n)=>({filter:l?.filter||n?.filter?i=>{const r=l?.filter?.(i)??!0,o=u=>u===!1?!1:n?.filter?.(i)??!0;return r instanceof Promise?r.then(o):o(r)}:void 0,sortBy:l?.sortBy||n?.sortBy?i=>{const r=l?.sortBy?.(i)??[],o=n?.sortBy?.(i)??[],u=(c,d)=>[...Array.isArray(c)?c:[c],...Array.isArray(d)?d:[d]];return r instanceof Promise||o instanceof Promise?Promise.all([r,o]).then(([c,d])=>u(c,d)):u(r,o)}:void 0}),df=async(l,n)=>{let i=l;if(n?.filter){const c=l.map(m=>n.filter(m));if(c.some(m=>m instanceof Promise)){const m=await Promise.all(c);i=l.filter((p,y)=>m[y])}else i=l.filter((m,p)=>c[p])}if(!n?.sortBy)return i;const r=i.map(c=>n.sortBy(c)),u=r.some(c=>c instanceof Promise)?await Promise.all(r):r;return i.map((c,d)=>({track:c,sortValue:u[d]})).sort((c,d)=>{const m=Array.isArray(c.sortValue)?c.sortValue:[c.sortValue],p=Array.isArray(d.sortValue)?d.sortValue:[d.sortValue],y=Math.max(m.length,p.length);for(let g=0;gc.track)};Rf();const rT=1,sT=2;class Do extends zf{get disposed(){return this._disposed}constructor(n){if(super(),this._demuxerPromise=null,this._format=null,this._trackBackingsCache=null,this._backingToTrack=new Map,this._disposed=!1,this._nextSourceCacheAge=0,this._sourceRefs=[],this._sourceCache=[],this._sourceCachePromises=[],this._onFormatDetermined=null,!n||typeof n!="object")throw new TypeError("options must be an object.");if(!Array.isArray(n.formats)||n.formats.some(i=>!(i instanceof _n)))throw new TypeError("options.formats must be an array of InputFormat.");if(!(n.source instanceof Cn||n.source instanceof Xf))throw new TypeError("options.source must be a Source or SourceRef.");if(n.source instanceof Cn&&n.source._disposed)throw new TypeError("options.source must not be a disposed Source.");if(n.initInput!==void 0&&!(n.initInput instanceof Do))throw new TypeError("options.initInput, when provided, must be an Input.");n.formatOptions!==void 0&&Y1(n.formatOptions,"formatOptions"),this._formats=n.formats,this._initInput=n.initInput??null,this._formatOptions=n.formatOptions??{},n.source instanceof Cn?this._rootRef=n.source.ref():this._rootRef=n.source,this._sourceRefs.push(this._rootRef)}get _rootSource(){return this._rootRef.source}async _getSourceUncached(n){x(this._rootSource instanceof qs);const i=await this._rootSource._resolveRequest(n);return this._emit("source",{source:i.source,request:n,isRoot:n.isRoot}),i}_getSourceCached(n,i=rT){const r=this._sourceCache.find(c=>c.cacheGroup===i&&Ig(c.request,n));if(r)return r.age++,Promise.resolve(r.sourceRef.source.ref());const o=this._sourceCachePromises.find(c=>c.cacheGroup===i&&Ig(c.request,n));if(o)return o.promise.then(c=>c.sourceRef.source.ref());const u=(async()=>{const c=await this._getSourceUncached(n);if(xs(this._sourceCache,g=>g.cacheGroup===i&&g.sourceRef.source._refCount===1)>=4){const g=i0(this._sourceCache,T=>T.cacheGroup===i&&T.sourceRef.source._refCount===1?T.age:1/0);x(g!==-1);const k=this._sourceCache[g];this._sourceCache.splice(g,1),k.sourceRef.free(),Xb(this._sourceRefs,k.sourceRef)}this._sourceRefs.push(c);const p=this._sourceCachePromises.findIndex(g=>g.request===n);return x(p!==-1),this._sourceCachePromises.splice(p,1),{request:n,sourceRef:c,age:this._nextSourceCacheAge++,cacheGroup:i}})();return this._sourceCachePromises.push({request:n,cacheGroup:i,promise:u}),u.then(c=>{const d=c.sourceRef.source.ref();return this._sourceCache.push(c),d})}_getDemuxer(){return this._demuxerPromise??=(async()=>{this._reader=new fo(this._rootSource),this._emit("source",{source:this._rootSource,request:null,isRoot:!0});for(const n of this._formats)if(await n._canReadInput(this))return this._format=n,this._onFormatDetermined?.(n),n._createDemuxer(this);throw new Lg})()}get source(){return this._rootSource}async getFormat(){return await this._getDemuxer(),x(this._format),this._format}async canRead(){try{return await this._getDemuxer(),!0}catch(n){if(n instanceof Lg)return!1;throw n}}async getFirstTimestamp(n){n??=await this.getTracks();const i=n.filter(o=>o!==null);if(i.length===0)return 0;const r=await Promise.all(i.map(o=>o.getFirstTimestamp()));return Math.min(...r)}async computeDuration(n,i){n??=await this.getTracks();const r=n.filter(u=>u!==null);if(r.length===0)return 0;const o=await Promise.all(r.map(u=>u.computeDuration(i)));return Math.max(...o)}async getDurationFromMetadata(n,i){n??=await this.getTracks();const r=n.filter(c=>c!==null),u=(await Promise.all(r.map(c=>c.getDurationFromMetadata(i)))).filter(c=>c!==null);return u.length===0?null:Math.max(...u)}async getTracks(n){n&&=Ts(n);const r=(await this._getTrackBackings()).map(o=>this._wrapBackingAsTrack(o));return df(r,n)}async getVideoTracks(n){n&&=Ts(n);const r=(await this.getTracks()).filter(o=>o.isVideoTrack());return df(r,n)}async getAudioTracks(n){n&&=Ts(n);const r=(await this.getTracks()).filter(o=>o.isAudioTrack());return df(r,n)}async getPrimaryVideoTrack(n){n&&=Ts(n);const i=ii(n,{sortBy:async o=>[Ss((await o.getDisposition()).default),Ss(await o.hasPairableAudioTrack()),Ss(!await o.hasOnlyKeyPackets()),Hg(await o.getBitrate())]});return(await this.getVideoTracks(i))[0]??null}async getPrimaryAudioTrack(n){n&&=Ts(n);const i=await this.getPrimaryVideoTrack(),r=ii(n,{sortBy:async u=>[Ss(!i||u.canBePairedWith(i)),Ss((await u.getDisposition()).default),Hg(await u.getBitrate())]});return(await this.getAudioTracks(r))[0]??null}async _getTrackBackings(){const n=await this._getDemuxer();return this._trackBackingsCache??=await n.getTrackBackings()}_wrapBackingAsTrack(n){const i=this._backingToTrack.get(n);if(i)return i;const o=n.getType()==="video"?new ay(this,n):new Bo(this,n);return this._backingToTrack.set(n,o),o}async getMimeType(){return(await this._getDemuxer()).getMimeType()}async getMetadataTags(){return(await this._getDemuxer()).getMetadataTags()}dispose(){if(!this._disposed){this._disposed=!0;for(const n of this._sourceRefs)n.free();this._sourceRefs.length=0,this._demuxerPromise&&this._demuxerPromise.then(n=>n.dispose()).catch(()=>{})}}[Symbol.dispose](){this.dispose()}}class Lg extends Error{constructor(n="Input has an unsupported or unrecognizable format."){super(n),this.name="UnsupportedInputFormatError"}}class Et extends Error{constructor(n="Input has been disposed."){super(n),this.name="InputDisposedError"}}class fo{constructor(n){this.source=n}get fileSize(){const n=this.source._getFileSize();if(n===void 0)throw new Error("Reading file size too early; read required first.");return n}get fileSizeNonStrict(){return this.source._getFileSize()??null}requestSlice(n,i){if(this.source._disposed)throw new Et;if(n<0||this.fileSizeNonStrict!==null&&n+i>this.fileSizeNonStrict)return null;if(i===0){const u=new Uint8Array(0);return new pn(u,Re(u),0,n,n)}const r=n+i,o=this.source._read(n,r,j0,X0);return o instanceof Promise?o.then(u=>u?new pn(u.bytes,u.view,u.offset,n,r):null):o?new pn(o.bytes,o.view,o.offset,n,r):null}requestSliceRange(n,i,r){if(this.source._disposed)throw new Et;if(n<0)return null;if(this.fileSizeNonStrict!==null)return this.requestSlice(n,fr(this.fileSizeNonStrict-n,i,r));{const o=this.requestSlice(n,r),u=c=>c||(x(this.fileSizeNonStrict!==null),this.requestSlice(n,fr(this.fileSizeNonStrict-n,i,r)));return o instanceof Promise?o.then(u):u(o)}}requestEntireFile(){if(this.fileSizeNonStrict!==null)return this.requestSlice(0,this.fileSizeNonStrict);const n=1024;return(async()=>{const i=[];let r=0;for(;;){if(i.length===1&&this.fileSizeNonStrict!==null)return this.requestSlice(0,this.fileSizeNonStrict);let c=this.requestSliceRange(r,0,n);if(c instanceof Promise&&(c=await c),!c||c.length===0)break;const d=fe(c,c.length);i.push(d),r+=c.length}const o=new Uint8Array(r);let u=0;for(const c of i)o.set(c,u),u+=c.length;return new pn(o,Re(o),0,0,r)})()}}class pn{constructor(n,i,r,o,u){this.bytes=n,this.view=i,this.offset=r,this.start=o,this.end=u,this.bufferPos=o-r}static tempFromBytes(n){return new pn(n,Re(n),0,0,n.length)}get length(){return this.end-this.start}get filePos(){return this.offset+this.bufferPos}set filePos(n){this.bufferPos=n-this.offset}get remainingLength(){return Math.max(this.end-this.filePos,0)}skip(n){this.bufferPos+=n}slice(n,i=this.end-n){if(nthis.end)throw new RangeError("Slicing outside of original slice.");return new pn(this.bytes,this.view,this.offset,n,n+i)}}const Ft=(l,n)=>{if(l.filePosl.end)throw new RangeError(`Tried reading [${l.filePos}, ${l.filePos+n}), but slice is [${l.start}, ${l.end}). 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diff --git a/static/utility-apps/whisper-transcriber/assets/index-Bz_YcdLD.css b/static/utility-apps/whisper-transcriber/assets/index-Bz_YcdLD.css
deleted file mode 100644
index baa2425..0000000
--- a/static/utility-apps/whisper-transcriber/assets/index-Bz_YcdLD.css
+++ /dev/null
@@ -1 +0,0 @@
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new file mode 100644
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p=new Uint8Array([o.avcProfileIndication,o.profileCompatibility,o.avcLevelIndication]);return`avc${s.avcType}.${Ds(p)}`}if(!i||i.byteLength<4)throw new TypeError("AVC decoder description is not provided or is not at least 4 bytes long.");return`avc${s.avcType}.${Ds(i.subarray(1,4))}`}else if(n==="hevc"){let p,y,g,k,T,w;if(u)p=u.generalProfileSpace,y=u.generalProfileIdc,g=rg(u.generalProfileCompatibilityFlags),k=u.generalTierFlag,T=u.generalLevelIdc,w=[...u.generalConstraintIndicatorFlags];else{if(!i||i.byteLength<23)throw new TypeError("HEVC decoder description is not provided or is not at least 23 bytes long.");const E=Re(i),C=E.getUint8(1);p=C>>6&3,y=C&31,g=rg(E.getUint32(2)),k=C>>5&1,T=E.getUint8(12),w=[];for(let _=0;_<6;_++)w.push(E.getUint8(6+_))}let S="hev1.";for(S+=["","A","B","C"][p]+y,S+=".",S+=g.toString(16).toUpperCase(),S+=".",S+=k===0?"L":"H",S+=T;w.length>0&&w[w.length-1]===0;)w.pop();return 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p=d.profile,y=d.level.toString().padStart(2,"0"),g=d.tier?"H":"M",k=d.bitDepth.toString().padStart(2,"0"),T=d.monochrome?"1":"0",w=100*d.chromaSubsamplingX+10*d.chromaSubsamplingY+1*(d.chromaSubsamplingX&&d.chromaSubsamplingY?d.chromaSamplePosition:0),S=r?.primaries?i0[r.primaries]:1,E=r?.transfer?r0[r.transfer]:1,C=r?.matrix?s0[r.matrix]:1,_=r?.fullRange?1:0;let B=`av01.${p}.${y}${g}.${k}`;return B+=`.${T}.${w.toString().padStart(3,"0")}`,B+=`.${S.toString().padStart(2,"0")}`,B+=`.${E.toString().padStart(2,"0")}`,B+=`.${C.toString().padStart(2,"0")}`,B+=`.${_}`,B.endsWith(hg)&&(B=B.slice(0,-hg.length)),B}else{if(n==="prores")return h??"apch";n!==null&&Is(n)}}throw new TypeError(`Unhandled codec '${n}'.`)},Vf=s=>{const{codec:n,codecDescription:i,aacCodecInfo:r}=s;if(n==="aac"){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let o;return r.objectType!==null?o=r.objectType:o=h0(i).objectType,`mp4a.40.${o}`}}else{if(n==="mp3")return"mp3";if(n==="opus")return"opus";if(n==="vorbis")return"vorbis";if(n==="flac")return"flac";if(n==="ac3")return"ac-3";if(n==="eac3")return"ec-3";if(n&&gr.includes(n))return n}throw new TypeError(`Unhandled codec '${n}'.`)},Co=48e3,m0=/^pcm-([usf])(\d+)(be)?$/,p0=s=>{if(x(gr.includes(s)),s==="ulaw")return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if(s==="alaw")return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const n=m0.exec(s);x(n);let i;n[1]==="u"?i="unsigned":n[1]==="s"?i="signed":i="float";const r=Number(n[2])/8,o=n[3]!=="be",u=s==="pcm-u8"?2**7:0;return{dataType:i,sampleSize:r,littleEndian:o,silentValue:u}},Es=s=>s.startsWith("avc1")||s.startsWith("avc3")?"avc":s.startsWith("hev1")||s.startsWith("hvc1")?"hevc":s==="vp8"?"vp8":s.startsWith("vp09")?"vp9":s.startsWith("av01")?"av1":Hf.includes(s)?"prores":s==="mp3"||s==="mp4a.69"||s==="mp4a.6B"||s==="mp4a.6b"||s==="mp4a.40.34"?"mp3":s.startsWith("mp4a.40.")||s==="mp4a.67"?"aac":s==="opus"?"opus":s==="vorbis"?"vorbis":s==="flac"?"flac":s==="ac-3"||s==="ac3"?"ac3":s==="ec-3"||s==="eac3"?"eac3":s==="ulaw"?"ulaw":s==="alaw"?"alaw":m0.test(s)?s:s==="webvtt"?"webvtt":null;const li=4,hS=[44100,48e3,32e3],mS=[-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,32,40,48,56,64,80,96,112,128,160,192,224,256,320,-1,-1,32,48,56,64,80,96,112,128,160,192,224,256,320,384,-1,-1,32,64,96,128,160,192,224,256,288,320,352,384,416,448,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1,-1,32,48,56,64,80,96,112,128,144,160,176,192,224,256,-1],g0=1483304551,y0=1231971951,pS=(s,n,i,r,o)=>n===0?0:n===1?Math.floor(144*i/(r<n===0?0:n===1?144*i/(r<s===3?n===3?21:36:n===3?13:21,jf=(s,n)=>{const i=s>>>24,r=s>>>16&255,o=s>>>8&255,u=s&255;if(i!==255&&r!==255&&o!==255&&u!==255)return{header:null,bytesAdvanced:4};if(i!==255)return{header:null,bytesAdvanced:1};if((r&224)!==224)return{header:null,bytesAdvanced:1};let c=0,d=0;r&16?c=r&8?0:1:(c=1,d=1);const h=r>>3&3,p=r>>1&3,y=o>>4&15,g=(o>>2&3)%3,k=o>>1&1,T=u>>6&3,w=u>>4&3,S=u>>3&1,E=u>>2&1,C=u&3,_=mS[c*16*4+p*16+y];if(_===-1)return{header:null,bytesAdvanced:1};const B=_*1e3,P=hS[g]>>c+d,D=pS(c,p,B,P,k);if(n!==null&&n{let n=2130706432,i=0;for(;n!==0;)i>>=1,i|=s&n,n>>=8;return i};var yo;(function(s){s[s.FrameCount=1]="FrameCount",s[s.FileSize=2]="FileSize",s[s.Toc=4]="Toc"})(yo||(yo={}));const zs=s=>s===3?1:2;const _o=[48e3,44100,32e3],b0=[24e3,22050,16e3];var wt;(function(s){s[s.NON_IDR_SLICE=1]="NON_IDR_SLICE",s[s.SLICE_DPA=2]="SLICE_DPA",s[s.SLICE_DPB=3]="SLICE_DPB",s[s.SLICE_DPC=4]="SLICE_DPC",s[s.IDR=5]="IDR",s[s.SEI=6]="SEI",s[s.SPS=7]="SPS",s[s.PPS=8]="PPS",s[s.AUD=9]="AUD",s[s.SPS_EXT=13]="SPS_EXT"})(wt||(wt={}));var Tt;(function(s){s[s.RASL_N=8]="RASL_N",s[s.RASL_R=9]="RASL_R",s[s.BLA_W_LP=16]="BLA_W_LP",s[s.RSV_IRAP_VCL23=23]="RSV_IRAP_VCL23",s[s.VPS_NUT=32]="VPS_NUT",s[s.SPS_NUT=33]="SPS_NUT",s[s.PPS_NUT=34]="PPS_NUT",s[s.AUD_NUT=35]="AUD_NUT",s[s.PREFIX_SEI_NUT=39]="PREFIX_SEI_NUT",s[s.SUFFIX_SEI_NUT=40]="SUFFIX_SEI_NUT"})(Tt||(Tt={}));const Eo=function*(s){let n=0,i=-1;for(;n=s.length-2)break;n=r;let o=0;if(n+3i&&(yield{offset:i,length:n-i}),i=n+o,n=i}i!==-1&&i{if(n.description){const o=(a0(n.description)[4]&3)+1;return S0(s,o)}else return Eo(s)},Xf=s=>s&31,Ao=s=>{const n=[],i=s.length;for(let r=0;r{try{const n=[],i=[],r=[];for(const d of Eo(s)){const h=s.subarray(d.offset,d.offset+d.length),p=Xf(h[0]);p===wt.SPS?n.push(h):p===wt.PPS?i.push(h):p===wt.SPS_EXT&&r.push(h)}if(n.length===0||i.length===0)return null;const o=n[0],u=w0(o);x(u!==null);const c=u.profileIdc===100||u.profileIdc===110||u.profileIdc===122||u.profileIdc===144;return{configurationVersion:1,avcProfileIndication:u.profileIdc,profileCompatibility:u.constraintFlags,avcLevelIndication:u.levelIdc,lengthSizeMinusOne:3,sequenceParameterSets:n,pictureParameterSets:i,chromaFormat:c?u.chromaFormatIdc:null,bitDepthLumaMinus8:c?u.bitDepthLumaMinus8:null,bitDepthChromaMinus8:c?u.bitDepthChromaMinus8:null,sequenceParameterSetExt:c?r:null}}catch(n){return be._error("Error building AVC Decoder Configuration Record:",n),null}},v0={1:{num:1,den:1},2:{num:12,den:11},3:{num:10,den:11},4:{num:16,den:11},5:{num:40,den:33},6:{num:24,den:11},7:{num:20,den:11},8:{num:32,den:11},9:{num:80,den:33},10:{num:18,den:11},11:{num:15,den:11},12:{num:64,den:33},13:{num:160,den:99},14:{num:4,den:3},15:{num:3,den:2},16:{num:2,den:1}},w0=s=>{try{const n=new Ne(Ao(s));if(n.skipBits(1),n.skipBits(2),n.readBits(5)!==7)return null;const r=n.readAlignedByte(),o=n.readAlignedByte(),u=n.readAlignedByte();te(n);let c=1,d=0,h=0,p=0;if((r===100||r===110||r===122||r===244||r===44||r===83||r===86||r===118||r===128)&&(c=te(n),c===3&&(p=n.readBits(1)),d=te(n),h=te(n),n.skipBits(1),n.readBits(1))){for(let Z=0;Z<(c!==3?8:12);Z++)if(n.readBits(1)){const de=Z<6?16:64;let ce=8,N=8;for(let $=0;$$.level>=u)??Jt(fg),N=Math.min(Math.floor(ce.maxDpbMbs/(Z*de)),16);L=N,I=N}}return x(I!==null),{profileIdc:r,constraintFlags:o,levelIdc:u,frameMbsOnlyFlag:C,chromaFormatIdc:c,bitDepthLumaMinus8:d,bitDepthChromaMinus8:h,codedWidth:T,codedHeight:w,displayWidth:S,displayHeight:E,pixelAspectRatio:H,colourPrimaries:B,matrixCoefficients:D,transferCharacteristics:P,fullRangeFlag:z,numReorderFrames:L,maxDecFrameBuffering:I}}catch(n){return be._error("Error parsing AVC SPS:",n),null}},mg=s=>{const n=te(s);s.skipBits(4),s.skipBits(4);for(let i=0;i<=n;i++)te(s),te(s),s.skipBits(1);s.skipBits(5),s.skipBits(5),s.skipBits(5),s.skipBits(5)},kS=(s,n)=>{if(n.description){const o=(a0(n.description)[21]&3)+1;return S0(s,o)}else return Eo(s)},ko=s=>s>>1&63,x0=s=>{try{const n=new Ne(Ao(s));n.skipBits(16),n.readBits(4);const i=n.readBits(3),r=n.readBits(1),{general_profile_space:o,general_tier_flag:u,general_profile_idc:c,general_profile_compatibility_flags:d,general_constraint_indicator_flags:h,general_level_idc:p}=bS(n,i);te(n);const y=te(n);let g=0;y===3&&(g=n.readBits(1));const k=te(n),T=te(n);let w=k,S=T;if(n.readBits(1)){const Z=te(n),se=te(n),de=te(n),ce=te(n);let N=1,$=1;const ie=g===0?y:0;ie===1?(N=2,$=2):ie===2&&(N=2,$=1),w-=(Z+se)*N,S-=(de+ce)*$}const E=te(n),C=te(n);te(n);const B=n.readBits(1)?0:i;let P=0;for(let Z=B;Z<=i;Z++)te(n),P=te(n),te(n);te(n),te(n),te(n),te(n),te(n),te(n),n.readBits(1)&&n.readBits(1)&&SS(n),n.skipBits(1),n.skipBits(1),n.readBits(1)&&(n.skipBits(4),n.skipBits(4),te(n),te(n),n.skipBits(1));const D=te(n);if(TS(n,D),n.readBits(1)){const Z=te(n);for(let se=0;se{try{const n=[],i=[],r=[],o=[];for(const p of Eo(s)){const y=s.subarray(p.offset,p.offset+p.length),g=ko(y[0]);g===Tt.VPS_NUT?n.push(y):g===Tt.SPS_NUT?i.push(y):g===Tt.PPS_NUT?r.push(y):(g===Tt.PREFIX_SEI_NUT||g===Tt.SUFFIX_SEI_NUT)&&o.push(y)}if(i.length===0||r.length===0)return null;const u=x0(i[0]);if(!u)return null;let c=0;if(r.length>0){const p=r[0],y=new Ne(Ao(p));y.skipBits(16),te(y),te(y),y.skipBits(1),y.skipBits(1),y.skipBits(3),y.skipBits(1),y.skipBits(1),te(y),te(y),ea(y),y.skipBits(1),y.skipBits(1),y.readBits(1)&&te(y),ea(y),ea(y),y.skipBits(1),y.skipBits(1),y.skipBits(1),y.skipBits(1);const g=y.readBits(1),k=y.readBits(1);!g&&!k?c=0:g&&!k?c=2:!g&&k?c=3:c=0}const d=[...n.length?[{arrayCompleteness:1,nalUnitType:Tt.VPS_NUT,nalUnits:n}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Tt.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Tt.PPS_NUT,nalUnits:r}]:[],...o.length?[{arrayCompleteness:1,nalUnitType:ko(o[0][0]),nalUnits:o}]:[]];return{configurationVersion:1,generalProfileSpace:u.generalProfileSpace,generalTierFlag:u.generalTierFlag,generalProfileIdc:u.generalProfileIdc,generalProfileCompatibilityFlags:u.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:u.generalConstraintIndicatorFlags,generalLevelIdc:u.generalLevelIdc,minSpatialSegmentationIdc:u.minSpatialSegmentationIdc,parallelismType:c,chromaFormatIdc:u.chromaFormatIdc,bitDepthLumaMinus8:u.bitDepthLumaMinus8,bitDepthChromaMinus8:u.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:u.spsMaxSubLayersMinus1+1,temporalIdNested:u.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:d}}catch(n){return be._error("Error building HEVC Decoder Configuration Record:",n),null}},bS=(s,n)=>{const i=s.readBits(2),r=s.readBits(1),o=s.readBits(5);let u=0;for(let y=0;y<32;y++)u=u<<1|s.readBits(1);const c=new Uint8Array(6);for(let y=0;y<6;y++)c[y]=s.readBits(8);const d=s.readBits(8),h=[],p=[];for(let y=0;y0)for(let y=n;y<8;y++)s.skipBits(2);for(let y=0;y{for(let n=0;n<4;n++)for(let i=0;i<(n===3?2:6);i++)if(!s.readBits(1))te(s);else{const o=Math.min(64,1<<4+(n<<1));n>1&&ea(s);for(let u=0;u{const i=[];for(let r=0;r{let o=0,u=0,c=0;if(n!==0&&(u=s.readBits(1)),u){if(n===i){const h=te(s);c=n-(h+1)}else c=n-1;s.readBits(1),te(s);const d=r[c]??0;for(let h=0;h<=d;h++)s.readBits(1)||s.readBits(1);o=r[c]}else{const d=te(s),h=te(s);for(let p=0;p{let i=2,r=2,o=2,u=0,c=0,d={num:1,den:1};if(s.readBits(1)){const h=s.readBits(8);if(h===255)d={num:s.readBits(16),den:s.readBits(16)};else{const p=v0[h];p&&(d=p)}}return s.readBits(1)&&s.readBits(1),s.readBits(1)&&(s.readBits(3),u=s.readBits(1),s.readBits(1)&&(i=s.readBits(8),r=s.readBits(8),o=s.readBits(8))),s.readBits(1)&&(te(s),te(s)),s.readBits(1),s.readBits(1),s.readBits(1),s.readBits(1)&&(te(s),te(s),te(s),te(s)),s.readBits(1)&&(s.readBits(32),s.readBits(32),s.readBits(1)&&te(s),s.readBits(1)&&xS(s,!0,n)),s.readBits(1)&&(s.readBits(1),s.readBits(1),s.readBits(1),c=te(s),te(s),te(s),te(s),te(s)),{pixelAspectRatio:d,colourPrimaries:i,transferCharacteristics:r,matrixCoefficients:o,fullRangeFlag:u,minSpatialSegmentationIdc:c}},xS=(s,n,i)=>{let r=!1,o=!1,u=!1;r=s.readBits(1)===1,o=s.readBits(1)===1,(r||o)&&(u=s.readBits(1)===1,u&&(s.readBits(8),s.readBits(5),s.readBits(1),s.readBits(5)),s.readBits(4),s.readBits(4),u&&s.readBits(4),s.readBits(5),s.readBits(5),s.readBits(5));for(let c=0;c<=i;c++){const d=s.readBits(1)===1;let h=!0;d||(h=s.readBits(1)===1);let p=!1;h?te(s):p=s.readBits(1)===1;let y=1;p||(y=te(s)+1),r&&pg(s,y,u),o&&pg(s,y,u)}},pg=(s,n,i)=>{for(let r=0;r{const n=new Ne(s);if(n.readBits(2)!==2)return null;const r=n.readBits(1),u=(n.readBits(1)<<1)+r;if(u===3&&n.skipBits(1),n.readBits(1)===1||n.readBits(1)!==0||(n.skipBits(2),n.readBits(24)!==4817730))return null;let p=8;u>=2&&(p=n.readBits(1)?12:10);const y=n.readBits(3);let g=0,k=0;if(y!==7)if(k=n.readBits(1),u===1||u===3){const H=n.readBits(1),L=n.readBits(1);g=!H&&!L?3:H&&!L?2:1,n.skipBits(1)}else g=1;else g=3,k=1;const T=n.readBits(16),w=n.readBits(16),S=T+1,E=w+1,C=S*E;let _=Jt(sr).level;for(const z of sr)if(C<=z.maxPictureSize){_=z.level;break}return{profile:u,level:_,bitDepth:p,chromaSubsampling:g,videoFullRangeFlag:k,colourPrimaries:y===2?1:y===1?6:2,transferCharacteristics:y===2?1:y===1?6:2,matrixCoefficients:y===7?0:y===2?1:y===1?6:2}},E0=function*(s){const n=new Ne(s),i=()=>{let r=0;for(let o=0;o<8;o++){const u=n.readAlignedByte();if(r|=(u&127)<=2**32-1?null:r};for(;n.getBitsLeft()>=8;){n.skipBits(1);const r=n.readBits(4),o=n.readBits(1),u=n.readBits(1);n.skipBits(1),o&&n.skipBits(8);let c;if(u){const d=i();if(d===null)return;c=d}else c=Math.floor(n.getBitsLeft()/8);x(n.pos%8===0),yield{type:r,data:s.subarray(n.pos/8,n.pos/8+c)},n.skipBits(c*8)}},A0=s=>{for(const{type:n,data:i}of E0(s)){if(n!==1)continue;const r=new Ne(i),o=r.readBits(3);r.readBits(1);const u=r.readBits(1);let c=0,d=0,h=0;if(u)c=r.readBits(5);else{if(r.readBits(1)&&(r.skipBits(32),r.skipBits(32),r.readBits(1)))return null;const D=r.readBits(1);D&&(h=r.readBits(5),r.skipBits(32),r.skipBits(5),r.skipBits(5));const z=r.readBits(5);for(let H=0;H<=z;H++){r.skipBits(12);const L=r.readBits(5);if(H===0&&(c=L),L>7){const X=r.readBits(1);H===0&&(d=X)}if(D&&r.readBits(1)){const J=h+1;r.skipBits(J),r.skipBits(J),r.skipBits(1)}r.readBits(1)&&r.skipBits(4)}}const p=r.readBits(4),y=r.readBits(4),g=p+1;r.skipBits(g);const k=y+1;r.skipBits(k);let T=0;if(u?T=0:T=r.readBits(1),T&&(r.skipBits(4),r.skipBits(3)),r.skipBits(1),r.skipBits(1),r.skipBits(1),!u){r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const P=r.readBits(1);P&&(r.skipBits(1),r.skipBits(1));const D=r.readBits(1);let z=0;D?z=2:z=r.readBits(1),z>0&&(r.readBits(1)||r.skipBits(1)),P&&r.skipBits(3)}r.skipBits(1),r.skipBits(1),r.skipBits(1);const w=r.readBits(1);let S=8;o===2&&w?S=r.readBits(1)?12:10:o<=2&&(S=w?10:8);let E=0;o!==1&&(E=r.readBits(1));let C=1,_=1,B=0;return E||(o===0?(C=1,_=1):o===1?(C=0,_=0):S===12&&(C=r.readBits(1),C&&(_=r.readBits(1))),C&&_&&(B=r.readBits(2))),{profile:o,level:c,tier:d,bitDepth:S,monochrome:E,chromaSubsamplingX:C,chromaSubsamplingY:_,chromaSamplePosition:B}}return null},CS=s=>{const n=Re(s),i=n.getUint8(9),r=n.getUint16(10,!0),o=n.getUint32(12,!0),u=n.getInt16(16,!0),c=n.getUint8(18);let d=null;return c&&(d=s.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:o,outputGain:u,channelMappingFamily:c,channelMappingTable:d}},_S=[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],ES=s=>{const n=s[0]>>3,i=s[0]&3;let r;return i===0?r=1:i===1||i===2?r=2:r=s[1]&63,{durationInSamples:_S[n]*r}},AS=s=>{if(s.length<7)throw new Error("Setup header is too short.");if(s[0]!==5)throw new Error("Wrong packet type in Setup header.");if(String.fromCharCode(...s.slice(1,7))!=="vorbis")throw new Error("Invalid packet signature in Setup header.");const i=s.length,r=new Uint8Array(i);for(let g=0;g97;)if(o.readBits(1)===1){u=o.pos;break}if(u===0)throw new Error("Invalid Setup header: framing bit not found.");let c=0,d=!1,h=0;for(;o.getBitsLeft()>=97;){const g=o.pos,k=o.readBits(8),T=o.readBits(16),w=o.readBits(16);if(k>63||T!==0||w!==0){o.pos=g;break}if(o.skipBits(1),c++,c>64)break;o.clone().readBits(6)+1===c&&(d=!0,h=c)}if(!d)throw new Error("Invalid Setup header: mode header not found.");if(h>63)throw new Error(`Unsupported mode count: ${h}.`);const p=h;o.pos=0,o.skipBits(u);const y=Array(p).fill(0);for(let g=p-1;g>=0;g--)o.skipBits(40),y[g]=o.readBits(1);return{modeBlockflags:y}},P0=(s,n,i)=>{switch(s){case"avc":{for(const r of yS(i,n)){const o=i[r.offset],u=Xf(o);if(u>=wt.NON_IDR_SLICE&&u<=wt.SLICE_DPC)return"delta";if(u===wt.IDR)return"key";if(u===wt.SEI&&(!lS()||oS()>=144)){const c=i.subarray(r.offset,r.offset+r.length),d=Ao(c);let h=1;do{let p=0;for(;;){const k=d[h++];if(k===void 0||(p+=k,k<255))break}let y=0;for(;;){const k=d[h++];if(k===void 0||(y+=k,k<255))break}if(p===6){const k=new Ne(d);k.pos=8*h;const T=te(k),w=k.readBits(1);if(T===0&&w===1)return"key"}h+=y}while(h{const i=Re(s);let r=0;const o=i.getUint32(r,!0);r+=4;const u=qt.decode(s.subarray(r,r+o));r+=o,o>0&&(n.raw??={},n.raw.vendor??=u);const c=i.getUint32(r,!0);r+=4;for(let d=0;d0&&(n.trackNumber??=w),S&&Number.isInteger(S)&&S>0&&(n.tracksTotal??=S)}break;case"TRACKTOTAL":{const T=Number.parseInt(k,10);Number.isInteger(T)&&T>0&&(n.tracksTotal??=T)}break;case"DISCNUMBER":{const T=k.split("/"),w=Number.parseInt(T[0],10),S=T[1]&&Number.parseInt(T[1],10);Number.isInteger(w)&&w>0&&(n.discNumber??=w),S&&Number.isInteger(S)&&S>0&&(n.discsTotal??=S)}break;case"DISCTOTAL":{const T=Number.parseInt(k,10);Number.isInteger(T)&&T>0&&(n.discsTotal??=T)}break;case"DATE":{const T=new Date(k);Number.isNaN(T.getTime())||(n.date??=T)}break;case"GENRE":n.genre??=k;break;case"METADATA_BLOCK_PICTURE":{const T=f0(k),w=Re(T),S=w.getUint32(0,!1),E=w.getUint32(4,!1),C=String.fromCharCode(...T.subarray(8,8+E)),_=w.getUint32(8+E,!1),B=qt.decode(T.subarray(12+E,12+E+_)),P=w.getUint32(E+_+28),D=T.subarray(E+_+32,E+_+32+P);n.images??=[],n.images.push({data:D,mimeType:C,kind:S===3?"coverFront":S===4?"coverBack":"unknown",name:void 0,description:B||void 0})}break}}},Gf=[2,1,2,3,3,4,4,5],PS=s=>{if(s.length<7||s[0]!==11||s[1]!==119)return null;const n=new Ne(s);n.skipBits(16),n.skipBits(16);const i=n.readBits(2);if(i===3)return null;const r=n.readBits(6),o=n.readBits(5);if(o>8)return null;const u=n.readBits(3),c=n.readBits(3);(c&1)!==0&&c!==1&&n.skipBits(2),(c&4)!==0&&n.skipBits(2),c===2&&n.skipBits(2);const d=n.readBits(1),h=Math.floor(r/2);return{fscod:i,bsid:o,bsmod:u,acmod:c,lfeon:d,bitRateCode:h}},BS=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,288*2,384,418,288*2,448,486,336*2,448,488,336*2,256*2,278*2,384*2,256*2,279*2,384*2,320*2,348*2,480*2,320*2,349*2,480*2,384*2,417*2,576*2,384*2,418*2,576*2,448*2,487*2,672*2,448*2,488*2,672*2,512*2,557*2,768*2,512*2,558*2,768*2,640*2,696*2,960*2,640*2,697*2,960*2,768*2,835*2,1152*2,768*2,836*2,1152*2,896*2,975*2,1344*2,896*2,976*2,1344*2,1024*2,1114*2,1536*2,1024*2,1115*2,1536*2,1152*2,1253*2,1728*2,1152*2,1254*2,1728*2,1280*2,1393*2,1920*2,1280*2,1394*2,1920*2],DS=1536,B0=[1,2,3,6],IS=s=>{if(s.length<6||s[0]!==11||s[1]!==119)return null;const n=new Ne(s);n.skipBits(16);const i=n.readBits(2);if(n.skipBits(3),i!==0&&i!==2)return null;const r=n.readBits(11),o=n.readBits(2);let u=0,c;o===3?(u=n.readBits(2),c=3):c=n.readBits(2);const d=n.readBits(3),h=n.readBits(1),p=n.readBits(5);if(p<11||p>16)return null;const y=B0[c];let g;return o<3?g=_o[o]/1e3:g=b0[u]/1e3,{dataRate:Math.round((r+1)*g/(y*16)),substreams:[{fscod:o,fscod2:u,bsid:p,bsmod:0,acmod:d,lfeon:h,numDepSub:0,chanLoc:0}]}},RS=s=>{if(s.length<2)return null;const n=new Ne(s),i=n.readBits(13),r=n.readBits(3),o=[];for(let u=0;u<=r&&!(Math.ceil(n.pos/8)+3>s.length);u++){const c=n.readBits(2),d=n.readBits(5);n.skipBits(1),n.skipBits(1);const h=n.readBits(3),p=n.readBits(3),y=n.readBits(1);n.skipBits(3);const g=n.readBits(4);let k=0;g>0?k=n.readBits(9):n.skipBits(1),o.push({fscod:c,fscod2:null,bsid:d,bsmod:h,acmod:p,lfeon:y,numDepSub:g,chanLoc:k})}return o.length===0?null:{dataRate:i,substreams:o}},D0=s=>{const n=s.substreams[0];return x(n),n.fscod<3?_o[n.fscod]:n.fscod2!==null&&n.fscod2<3?b0[n.fscod2]:null},I0=s=>{const n=s.substreams[0];x(n);let i=Gf[n.acmod]+n.lfeon;if(n.numDepSub>0){const r=[2,2,1,1,2,2,2,1,1];for(let o=0;o<9;o++)n.chanLoc&1<<8-o&&(i+=r[o])}return i};class aa{constructor(n){this.input=n}dispose(){}}const $t=new Uint8Array(0);class mt{constructor(n,i,r,o,u=-1,c,d){if(this.data=n,this.type=i,this.timestamp=r,this.duration=o,this.sequenceNumber=u,n===$t&&c===void 0)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(c===void 0&&(c=n.byteLength),!(n instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if(i!=="key"&&i!=="delta")throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(r))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(o)||o<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(u))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(c)||c<0)throw new TypeError("byteLength must be a non-negative integer.");if(d!==void 0&&(typeof d!="object"||!d))throw new TypeError("sideData, when provided, must be an object.");if(d?.alpha!==void 0&&!(d.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(d?.alphaByteLength!==void 0&&(!Number.isInteger(d.alphaByteLength)||d.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=c,this.sideData=d??{},this.sideData.alpha&&this.sideData.alphaByteLength===void 0&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===$t}get microsecondTimestamp(){return Math.trunc(go*this.timestamp)}get microsecondDuration(){return Math.trunc(go*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if(typeof EncodedVideoChunk>"u")throw new Error("Your browser does not support EncodedVideoChunk.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(n=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if(typeof EncodedVideoChunk>"u")throw new Error("Your browser does not support EncodedVideoChunk.");return new EncodedVideoChunk({data:this.sideData.alpha,type:n,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if(typeof EncodedAudioChunk>"u")throw new Error("Your browser does not support EncodedAudioChunk.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(n,i){if(!(n instanceof EncodedVideoChunk||n instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const r=new Uint8Array(n.byteLength);return n.copyTo(r),new mt(r,n.type,n.timestamp/1e6,(n.duration??0)/1e6,void 0,void 0,i)}clone(n){if(n!==void 0&&(typeof n!="object"||n===null))throw new TypeError("options, when provided, must be an object.");if(n?.data!==void 0&&!(n.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(n?.type!==void 0&&n.type!=="key"&&n.type!=="delta")throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(n?.timestamp!==void 0&&!Number.isFinite(n.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(n?.duration!==void 0&&!Number.isFinite(n.duration))throw new TypeError("options.duration, when provided, must be a number.");if(n?.sequenceNumber!==void 0&&!Number.isFinite(n.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(n?.sideData!==void 0&&(typeof n.sideData!="object"||n.sideData===null))throw new TypeError("options.sideData, when provided, must be an object.");return new mt(n?.data??this.data,n?.type??this.type,n?.timestamp??this.timestamp,n?.duration??this.duration,n?.sequenceNumber??this.sequenceNumber,this.byteLength,n?.sideData??this.sideData)}}const OS=s=>{let i=(s.hasVideo?"video/":s.hasAudio?"audio/":"application/")+(s.isQuickTime?"quicktime":"mp4");if(s.codecStrings.length>0){const r=[...new Set(s.codecStrings)];i+=`; codecs="${r.join(", ")}"`}return i},R0=s=>{const n=Re(s);let i=0;const r=n.getUint8(i);i+=1,i+=3;const o=Ds(s.subarray(i,i+16));i+=16;let u=null;if(r>0){const d=n.getUint32(i);if(i+=4,d>0){u=[];for(let h=0;hs.systemId===n.systemId&&cS(s.data,n.data);const er=8,ws=16,Ba=s=>{let n=ee(s);const i=Je(s,4);let r=8;n===1&&(n=fn(s),r=16);const u=n-r;return u<0?null:{name:i,totalSize:n,headerSize:r,contentSize:u}},$a=s=>ri(s)/65536,lf=s=>ri(s)/1073741824,of=s=>{let n=0;for(let i=0;i<4;i++){n<<=7;const r=oe(s);if(n|=r&127,(r&128)===0)break}return n},vn=s=>{let n=rt(s);return s.skip(2),n=Math.min(n,s.remainingLength),qt.decode(fe(s,n))},zS=s=>{const n=Ba(s);if(!n||n.name!=="data"||s.remainingLength<8)return null;const i=ee(s);s.skip(4);const r=fe(s,n.contentSize-8);switch(i){case 1:return qt.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new oo(r,"image/jpeg");case 14:return new oo(r,"image/png");case 27:return new oo(r,"image/bmp");default:return r}};const xn=16,Kn=new Uint32Array(256),tr=new Uint32Array(256),nr=new Uint32Array(256),ar=new Uint32Array(256),ir=new Uint32Array(256),St=new Uint32Array(256),z0=new Uint32Array(10);let M0=!1;const MS=()=>{const s=new Uint8Array(256),n=new Uint8Array(256),i=new Uint8Array(256);for(let u=0,c=1;u<256;u++)i[u]=c,n[c]=u,c=c^c<<1^(c&128?283:0);const r=(u,c)=>u&&c?i[(n[u]+n[c])%255]:0;s[0]=99;for(let u=1;u<256;u++){const c=i[255-n[u]];let d=c^c<<1^c<<2^c<<3^c<<4;d=d>>>8^d&255^99,s[u]=d}for(let u=0;u<256;u++){const c=s[u],d=s.indexOf(u);Kn[u]=c<<24|c<<16|c<<8|c,St[u]=d<<24|d<<16|d<<8|d;const h=r(d,14),p=r(d,9),y=r(d,13),g=r(d,11),k=h<<24|p<<16|y<<8|g;tr[u]=k,nr[u]=k>>>8|k<<24,ar[u]=k>>>16|k<<16,ir[u]=k>>>24|k<<8}let o=1;for(let u=0;u<10;u++)z0[u]=o<<24,o=o<<1^(o&128?283:0);M0=!0};class N0{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(xn/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(xn),this.out=new Uint8Array(xn),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:n,iv:i}){x(n.byteLength===16),x(i.byteLength===16),M0||MS();const r=new DataView(n.buffer,n.byteOffset,n.byteLength),o=new DataView(i.buffer,i.byteOffset,i.byteLength);this.roundkey[0]=r.getUint32(0,!1),this.roundkey[1]=r.getUint32(4,!1),this.roundkey[2]=r.getUint32(8,!1),this.roundkey[3]=r.getUint32(12,!1),this.iv[0]=o.getUint32(0,!1),this.iv[1]=o.getUint32(4,!1),this.iv[2]=o.getUint32(8,!1),this.iv[3]=o.getUint32(12,!1);for(let u=4;u<44;u+=4){const c=this.roundkey[u-1];this.roundkey[u]=this.roundkey[u-4]^Kn[c>>>16&255]&4278190080^Kn[c>>>8&255]&16711680^Kn[c>>>0&255]&65280^Kn[c>>>24&255]&255^z0[u/4-1],this.roundkey[u+1]=this.roundkey[u-3]^this.roundkey[u],this.roundkey[u+2]=this.roundkey[u-2]^this.roundkey[u+1],this.roundkey[u+3]=this.roundkey[u-1]^this.roundkey[u+2]}for(let u=0,c=40;u>>24&255]&255]^nr[Kn[d>>>16&255]&255]^ar[Kn[d>>>8&255]&255]^ir[Kn[d>>>0&255]&255]}}decrypt(){let n=this.inView.getUint32(0,!1)^this.roundkey[0],i=this.inView.getUint32(4,!1)^this.roundkey[1],r=this.inView.getUint32(8,!1)^this.roundkey[2],o=this.inView.getUint32(12,!1)^this.roundkey[3];const u=this.inView.getUint32(0,!1),c=this.inView.getUint32(4,!1),d=this.inView.getUint32(8,!1),h=this.inView.getUint32(12,!1);let p,y,g,k;for(let C=1;C<10;C++){const _=C*4;p=tr[n>>>24]^nr[o>>>16&255]^ar[r>>>8&255]^ir[i&255]^this.roundkey[_],y=tr[i>>>24]^nr[n>>>16&255]^ar[o>>>8&255]^ir[r&255]^this.roundkey[_+1],g=tr[r>>>24]^nr[i>>>16&255]^ar[n>>>8&255]^ir[o&255]^this.roundkey[_+2],k=tr[o>>>24]^nr[r>>>16&255]^ar[i>>>8&255]^ir[n&255]^this.roundkey[_+3],n=p,i=y,r=g,o=k}const T=St[n>>>24&255]&4278190080^St[o>>>16&255]&16711680^St[r>>>8&255]&65280^St[i>>>0&255]&255^this.roundkey[40],w=St[i>>>24&255]&4278190080^St[n>>>16&255]&16711680^St[o>>>8&255]&65280^St[r>>>0&255]&255^this.roundkey[41],S=St[r>>>24&255]&4278190080^St[i>>>16&255]&16711680^St[n>>>8&255]&65280^St[o>>>0&255]&255^this.roundkey[42],E=St[o>>>24&255]&4278190080^St[r>>>16&255]&16711680^St[i>>>8&255]&65280^St[n>>>0&255]&255^this.roundkey[43];this.outView.setUint32(0,T^this.iv[0],!1),this.outView.setUint32(4,w^this.iv[1],!1),this.outView.setUint32(8,S^this.iv[2],!1),this.outView.setUint32(12,E^this.iv[3],!1),this.iv[0]=u,this.iv[1]=c,this.iv[2]=d,this.iv[3]=h}}const NS=(s,n,i)=>{let r=!1,o=0;const u=2**16,c=16,d=new N0;return new ReadableStream({pull:async h=>{r||(d.init(await n()),r=!0);const p=u+c;let y=s.requestSliceRange(o,0,p);if(y instanceof Promise&&(y=await y),!y||y.length===0)throw new Error("Invalid ciphertext.");const g=y.length;if(g%16!==0)throw new Error("Invalid ciphertext.");const k=g===p?g-c:g,T=fe(y,k),w=new Uint8Array(k);for(let S=0;S16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const E=w.subarray(0,k-S);h.enqueue(E),h.close(),i()}},cancel:()=>{i()}})};class Kf extends aa{constructor(n){super(n),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=n._reader}async getTrackBackings(){return await this.readMetadata(),this.tracks.map(n=>n.trackBacking)}async getMimeType(){await this.readMetadata();const n=await this.getTrackBackings(),i=await Promise.all(n.map(r=>r.getDecoderConfig().then(o=>o?.codec??null)));return OS({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(r=>r.info?.type==="video"),hasAudio:this.tracks.some(r=>r.info?.type==="audio"),codecStrings:i.filter(Boolean)})}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}readMetadata(){return this.metadataPromise??=(async()=>{let n=0,i=!1;for(;;){let r=this.reader.requestSliceRange(n,er,ws);if(r instanceof Promise&&(r=await r),!r)break;const o=n,u=Ba(r);if(!u)break;if(u.name==="ftyp"||u.name==="styp"){const c=Je(r,4);this.isQuickTime=c==="qt "}else if(u.name==="moov"){let c=this.reader.requestSlice(r.filePos,u.contentSize);if(c instanceof Promise&&(c=await c),!c)break;this.moovSlice=c,this.readContiguousBoxes(this.moovSlice);for(const d of this.tracks){const h=d.editListPreviousSegmentDurations/this.movieTimescale;d.editListOffset-=Math.round(h*d.timescale)}i=this.isFragmented&&this.reader.fileSize!==null&&this.reader.fileSize>o+u.totalSize;break}else if(u.name==="moof"){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');const c=await this.input._initInput._getDemuxer();if(c.constructor!==Kf)throw new Error("Init input must match the input's format.");await c.readMetadata(),this.movieTimescale=c.movieTimescale,this.movieDurationInTimescale=c.movieDurationInTimescale,this.metadataTags=c.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=c.fragmentTrackDefaults,this.psshBoxes=c.psshBoxes;for(const d of c.tracks){const h={id:d.id,demuxer:this,trackBacking:null,disposition:d.disposition,timescale:d.timescale,durationInMediaTimescale:d.durationInMediaTimescale,durationInMovieTimescale:d.durationInMovieTimescale,rotation:d.rotation,internalCodecId:d.internalCodecId,name:d.name,languageCode:d.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:d.editListPreviousSegmentDurations,editListOffset:d.editListOffset,encryptionInfo:d.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:d.info};if(d.trackBacking){if(x(h.info),h.info.type==="video"&&h.info.width!==-1){const p=h;h.trackBacking=new yg(p),this.tracks.push(h)}else if(h.info.type==="audio"&&h.info.numberOfChannels!==-1){const p=h;h.trackBacking=new kg(p),this.tracks.push(h)}}}i=!1;break}n=o+u.totalSize}if(i){x(this.reader.fileSize!==null);let r=this.reader.requestSlice(this.reader.fileSize-4,4);r instanceof Promise&&(r=await r),x(r);const o=ee(r),u=this.reader.fileSize-o;if(u>=0&&u<=this.reader.fileSize-ws){let c=this.reader.requestSliceRange(u,er,ws);if(c instanceof Promise&&(c=await c),c){const d=Ba(c);if(d&&d.name==="mfra"){let h=this.reader.requestSlice(c.filePos,d.contentSize);h instanceof Promise&&(h=await h),h&&this.readContiguousBoxes(h)}}}}})()}getSampleTableForTrack(n){if(n.sampleTable)return n.sampleTable;const i={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(n.sampleTable=i,n.sampleTableByteOffset===null)return i;x(this.moovSlice);const r=this.moovSlice.slice(n.sampleTableByteOffset);if(this.currentTrack=n,this.traverseBox(r),this.currentTrack=null,n.info?.type==="audio"&&n.info.codec&&gr.includes(n.info.codec)&&i.sampleCompositionTimeOffsets.length===0){x(n.info?.type==="audio");const u=p0(n.info.codec),c=[],d=[];for(let h=0;hL.startIndex),E=i.sampleTimingEntries[S],C=Oe(i.sampleTimingEntries,w,L=>L.startIndex),_=i.sampleTimingEntries[C],B=E.startDecodeTimestamp+(T-E.startIndex)*E.delta,D=_.startDecodeTimestamp+(w-_.startIndex)*_.delta-B,z=Jt(c);z&&z.delta===D?z.count++:c.push({startIndex:p.startChunkIndex+k,startDecodeTimestamp:B,count:1,delta:D});const H=p.samplesPerChunk*u.sampleSize*n.info.numberOfChannels;d.push(H)}p.startSampleIndex=p.startChunkIndex,p.samplesPerChunk=1}i.sampleTimingEntries=c,i.sampleSizes=d}if(i.sampleCompositionTimeOffsets.length>0){i.presentationTimestamps=[];for(const u of i.sampleTimingEntries)for(let c=0;c