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ArtPlayer/docs/compiled/artplayer-proxy-mediabunny.legacy.js
T
Harvey Zhao 99ad0d7b93 Update package.json 
Remove options section from README for clarity

Add 'waiting' event emission during seeking in mediabunnyEngine

This change emits a 'waiting' event when the seeking process begins,
improving the event handling and allowing for better synchronization
during media playback.

fix(audioEngine): adjust audio context suspension timing for improved playback responsiveness

refactor(mediabunnyVideoShim): remove redundant width and height getters; enhance poster setter and add setAttribute method

feat: initialize artplayer-proxy-mediabunny with essential files and structure

feat: implement audio and video engines for mediabunny integration

- Added audioEngine.js to handle audio playback using MediaBunny.
- Created mediabunnyEngine.js to manage both audio and video playback.
- Implemented videoEngine.js for rendering video on a canvas.
- Introduced canvasProxy.js to create a canvas element and manage its methods.
- Developed mediabunnyVideoShim.js to bridge ArtPlayer and MediaBunny functionalities.
- Added videoEvents.js for custom event handling related to video playback.
- Included a utility function clamp.js for value clamping.

feat: add playback rate control to audio and video engines

- Introduced playback rate management in the audio engine, allowing dynamic adjustment of playback speed.
- Updated the mediabunny engine to expose the new setPlaybackRate method.
- Enhanced the mediabunny video shim to support playback rate adjustments, including getter and setter for playbackRate.
- Added event emission for rate changes to ensure proper handling in the application.

Enhance audio engine and video shim functionality

- Added a check to ensure the audio context is initialized before playing audio in the audio engine.
- Introduced a new 'playing' getter in the video shim to accurately reflect the playback state, indicating when the video is neither paused nor ended.

Refactor audio context initialization to handle errors and remove async/await

- Changed `ensureAudioContext` from async to synchronous to simplify error handling.
- Added a try-catch block to handle potential errors when creating the AudioContext with a specified sample rate.
- Updated calls to `ensureAudioContext` to remove unnecessary await statements.

Enhance Mediabunny Engine and Video Shim with State Management and Error Handling

- Added readyState, networkState, and error properties to the Mediabunny Engine for better state management.
- Implemented error handling during media loading, emitting appropriate events on error.
- Updated the Video Engine to emit a 'timeupdate' event for better synchronization.
- Extended the Mediabunny Video Shim to expose new properties (readyState, networkState, error) and methods for improved functionality.
- Added seekable property to the Video Shim to provide seekable range based on media duration.
- Implemented additional properties and methods in the Video Shim for autoplay, loop, controls, currentSrc, poster, preload, defaultMuted, and defaultPlaybackRate.
- Enhanced requestVideoFrameCallback and cancelVideoFrameCallback methods for better frame handling.

refactor: streamline audio and video engine implementations

- Updated audioEngine.js to improve readability and maintainability by using consistent formatting and simplifying function structures.
- Refactored mediabunnyEngine.js to enhance clarity and ensure consistent coding style.
- Enhanced videoEngine.js with improved async handling and clearer function definitions.
- Modified canvasProxy.js to maintain consistent formatting and improve readability.
- Updated mediabunnyVideoShim.js to streamline event handling and improve clarity.
- Refactored videoEvents.js for better readability and consistency in event listener management.
- Simplified clamp.js for improved readability.

feat: enhance audio and video loading with metadata callbacks

- Updated audioEngine to accept an optional onMetadata callback in the load function, which is triggered upon loading completion.
- Modified mediabunnyEngine to handle video and audio loading concurrently, emitting loadedmetadata and durationchange events only when both are ready.
- Enhanced videoEngine to include an onMetadata callback in the load function, ensuring metadata events are emitted appropriately.
- Implemented a throttling mechanism for the timeupdate event in videoEngine to reduce event emissions and improve performance.

feat: add seeking state and played property to mediabunny engine and video shim

- Introduced a `_seeking` state in the mediabunny engine to track seek operations.
- Emitted 'seeking' and 'seeked' events during seek operations.
- Added a `seeking` getter to expose the seeking state.
- Implemented a `played` property in the video shim to provide playback range information.
- Added `width` and `height` getters to the video shim for better video dimension access.
- Enhanced cross-origin handling in the video shim.

feat(audioEngine): enhance audio playback management with starvation detection

- Added an event emitter to notify when the audio context is waiting.
- Implemented a starvation check that suspends the audio context if playback is delayed.
- Introduced a mechanism to track the latest scheduled end time of audio buffers.
- Updated the handling of audio buffer playback to ensure proper state transitions.

refactor: remove unnecessary comments and streamline code in audio, video, and mediabunny engines

feat: add resize functionality to canvas proxy and update type definitions

- Implemented a resize function in canvasProxy.js to adjust canvas size based on player dimensions and video metadata.
- Updated TypeScript definitions for artplayer-proxy-mediabunny to include option and result types.
- Modified build-ts script to include all plugin type definitions.
- Added TypeScript definitions for artplayer-proxy-canvas and artplayer-proxy-mediabunny.

refactor: remove unused properties from Artplayer instance and make option parameter optional in artplayerProxyCanvas type definition

Enhance Mediabunny and Video Engine functionality

- Added event listener for 'ended' event in mediabunnyEngine to handle playback state.
- Modified seek function to check if playback should resume after seeking.
- Reset canvas dimensions to zero in videoEngine when video track is not available or cannot be decoded.
- Ensured canvas is cleared when video track is invalid to prevent rendering issues.

Emit 'waiting' event during loadstart in mediabunnyEngine

Refactor event emission in mediabunnyEngine and add sleep utility function

- Changed the event emission for 'loadstart' to be asynchronous using setTimeout.
- Introduced a new utility function 'sleep' to facilitate delayed execution in promises.

feat: enhance mediabunny proxy with new options and source handling

- Added options for event delay, load timeout, timeupdate interval, AV sync tolerance, poster, and source in README.
- Implemented source normalization in audio and video engines to support URL, Blob, and ReadableStream.
- Updated mediabunny engine to handle new options and improve load handling with timeout and error management.
- Enhanced video engine to draw a poster when no video source is available and manage playback rate.
- Modified shim to accept source option and integrate with the new engine options.
- Updated TypeScript definitions to reflect new options and source types.

feat: add dropLateFrames option to video and mediabunny engines

- Introduced dropLateFrames option in mediabunnyEngine and videoEngine to control frame dropping behavior.
- Updated videoEngine logic to handle frame rendering based on the dropLateFrames setting.
- Added type definition for dropLateFrames in TypeScript declaration file.

fix: delay loadstart event emission to ensure proper event handling

The 'loadstart' event emission is now wrapped in a setTimeout to ensure it is triggered after the current call stack is cleared. This change aims to improve the timing of event emissions and prevent potential issues with event handling in the mediabunny engine.

feat: add preflight range check and drop late frames option

- Updated README.md to include new options: dropLateFrames and preflightRange.
- Enhanced mediabunnyEngine to support new options with default values.
- Implemented preflight function in videoEngine to check server support for Range requests.
- Adjusted videoEngine to utilize preflight check before loading media.
- Updated TypeScript definitions to include preflightRange option.

Remove aspectRatio option from Artplayer configuration

Update README and mediabunny example URL for consistency

Refactor code structure for improved readability and maintainability

Update dependencies and fix play/seek state management in mediabunnyEngine

Refactor code structure for improved readability and maintainability

fix(types): update export syntax and formatting in TypeScript declaration files
2025-12-13 14:06:30 +08:00

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/*!
* artplayer-proxy-mediabunny.js v1.0.0
* Github: https://github.com/zhw2590582/ArtPlayer
* (c) 2017-2025 Harvey Zack
* Released under the MIT License.
*/
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e,r,n,a,i,s,o,c,u,l,d,f,h,m,g,b,k,y,S;return(0,p._)(this,function(p){switch(p.label){case 0:e=0,p.label=1;case 1:if(!((r=this.reader.requestSliceRange(e,w.MIN_BOX_HEADER_SIZE,w.MAX_BOX_HEADER_SIZE))instanceof Promise))return[3,3];return[4,r];case 2:r=p.sent(),p.label=3;case 3:if(!r||(n=e,!(a=(0,w.readBoxHeader)(r))))return[3,8];if("ftyp"!==a.name)return[3,4];return i=(0,T.readAscii)(r,4),this.isQuickTime="qt "===i,[3,7];case 4:if("moov"!==a.name)return[3,7];if(!((s=this.reader.requestSlice(r.filePos,a.contentSize))instanceof Promise))return[3,6];return[4,s];case 5:s=p.sent(),p.label=6;case 6:if(!s)return[3,8];this.moovSlice=s,this.readContiguousBoxes(this.moovSlice),this.tracks.sort(function(e,r){return Number(r.disposition.default)-Number(e.disposition.default)}),o=!0,c=!1,u=void 0;try{for(l=this.tracks[Symbol.iterator]();!(o=(d=l.next()).done);o=!0)h=(f=d.value).editListPreviousSegmentDurations/this.movieTimescale,f.editListOffset-=Math.round(h*f.timescale)}catch(e){c=!0,u=e}finally{try{o||null==l.return||l.return()}finally{if(c)throw u}}return[3,8];case 7:return e=n+a.totalSize,[3,1];case 8:if(!(this.isFragmented&&null!==this.reader.fileSize))return[3,15];if(!((m=this.reader.requestSlice(this.reader.fileSize-4,4))instanceof Promise))return[3,10];return[4,m];case 9:m=p.sent(),p.label=10;case 10:if((0,_.assert)(m),g=(0,T.readU32Be)(m),!((b=this.reader.fileSize-g)>=0&&b<=this.reader.fileSize-w.MAX_BOX_HEADER_SIZE))return[3,15];if(!((k=this.reader.requestSliceRange(b,w.MIN_BOX_HEADER_SIZE,w.MAX_BOX_HEADER_SIZE))instanceof Promise))return[3,12];return[4,k];case 11:k=p.sent(),p.label=12;case 12:if(!k||!((y=(0,w.readBoxHeader)(k))&&"mfra"===y.name))return[3,15];if(!((S=this.reader.requestSlice(k.filePos,y.contentSize))instanceof Promise))return[3,14];return[4,S];case 13:S=p.sent(),p.label=14;case 14:S&&this.readContiguousBoxes(S),p.label=15;case 15:return[2]}})}).call(this)}},{key:"getSampleTableForTrack",value:function(e){if(e.sampleTable)return e.sampleTable;var r={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};e.sampleTable=r,(0,_.assert)(this.moovSlice);var n=this.moovSlice.slice(e.sampleTableByteOffset);if(this.currentTrack=e,this.traverseBox(n),this.currentTrack=null,(null==(a=e.info)?void 0:a.type)==="audio"&&e.info.codec&&m.PCM_AUDIO_CODECS.includes(e.info.codec)&&0===r.sampleCompositionTimeOffsets.length){(0,_.assert)((null==(i=e.info)?void 0:i.type)==="audio");for(var a,i,s=(0,m.parsePcmCodec)(e.info.codec),o=[],c=[],u=0;u<r.sampleToChunk.length;u++){for(var l=r.sampleToChunk[u],d=r.sampleToChunk[u+1],f=(d?d.startChunkIndex:r.chunkOffsets.length)-l.startChunkIndex,h=0;h<f;h++){var p=l.startSampleIndex+h*l.samplesPerChunk,g=p+l.samplesPerChunk,b=(0,_.binarySearchLessOrEqual)(r.sampleTimingEntries,p,function(e){return e.startIndex}),k=r.sampleTimingEntries[b],y=(0,_.binarySearchLessOrEqual)(r.sampleTimingEntries,g,function(e){return e.startIndex}),S=r.sampleTimingEntries[y],w=k.startDecodeTimestamp+(p-k.startIndex)*k.delta,T=S.startDecodeTimestamp+(g-S.startIndex)*S.delta-w,x=(0,_.last)(o);x&&x.delta===T?x.count++:o.push({startIndex:l.startChunkIndex+h,startDecodeTimestamp:w,count:1,delta:T});var I=l.samplesPerChunk*s.sampleSize*e.info.numberOfChannels;c.push(I)}l.startSampleIndex=l.startChunkIndex,l.samplesPerChunk=1}r.sampleTimingEntries=o,r.sampleSizes=c}if(r.sampleCompositionTimeOffsets.length>0){r.presentationTimestamps=[];var E=!0,j=!1,P=void 0;try{for(var C,A=r.sampleTimingEntries[Symbol.iterator]();!(E=(C=A.next()).done);E=!0)for(var B=C.value,M=0;M<B.count;M++)r.presentationTimestamps.push({presentationTimestamp:B.startDecodeTimestamp+M*B.delta,sampleIndex:B.startIndex+M})}catch(e){j=!0,P=e}finally{try{E||null==A.return||A.return()}finally{if(j)throw P}}var D=!0,F=!1,R=void 0;try{for(var U,O=r.sampleCompositionTimeOffsets[Symbol.iterator]();!(D=(U=O.next()).done);D=!0)for(var L=U.value,N=0;N<L.count;N++){var V=L.startIndex+N,z=r.presentationTimestamps[V];z&&(z.presentationTimestamp+=L.offset)}}catch(e){F=!0,R=e}finally{try{D||null==O.return||O.return()}finally{if(F)throw R}}r.presentationTimestamps.sort(function(e,r){return e.presentationTimestamp-r.presentationTimestamp}),r.presentationTimestampIndexMap=Array(r.presentationTimestamps.length).fill(-1);for(var H=0;H<r.presentationTimestamps.length;H++)r.presentationTimestampIndexMap[r.presentationTimestamps[H].sampleIndex]=H}return r}},{key:"readFragment",value:function(e){return(0,s._)(function(){var r,n,a,i,s,o,c,u,l,d,h,m,g,b,k,y,S;return(0,p._)(this,function(p){switch(p.label){case 0:if((null==(r=this.lastReadFragment)?void 0:r.moofOffset)===e)return[2,this.lastReadFragment];if(!((n=this.reader.requestSliceRange(e,w.MIN_BOX_HEADER_SIZE,w.MAX_BOX_HEADER_SIZE))instanceof Promise))return[3,2];return[4,n];case 1:n=p.sent(),p.label=2;case 2:if((0,_.assert)(n),a=(0,w.readBoxHeader)(n),(0,_.assert)((null==a?void 0:a.name)==="moof"),!((i=this.reader.requestSlice(e,a.totalSize))instanceof Promise))return[3,4];return[4,i];case 3:i=p.sent(),p.label=4;case 4:(0,_.assert)(i),this.traverseBox(i),s=this.lastReadFragment,(0,_.assert)(s&&s.moofOffset===e),o=!0,c=!1,u=void 0;try{for(l=s.trackData[Symbol.iterator]();!(o=(d=l.next()).done);o=!0)g=(m=(h=(0,f._)(d.value,2)[1]).track).fragmentPositionCache,h.startTimestampIsFinal||((b=m.fragmentLookupTable.find(function(e){return e.moofOffset===s.moofOffset}))?D(h,b.timestamp):(k=(0,_.binarySearchLessOrEqual)(g,s.moofOffset-1,function(e){return e.moofOffset}),-1!==k&&(y=g[k],D(h,y.endTimestamp))),h.startTimestampIsFinal=!0),S=(0,_.binarySearchLessOrEqual)(g,h.startTimestamp,function(e){return e.startTimestamp}),(-1===S||g[S].moofOffset!==s.moofOffset)&&g.splice(S+1,0,{moofOffset:s.moofOffset,startTimestamp:h.startTimestamp,endTimestamp:h.endTimestamp})}catch(e){c=!0,u=e}finally{try{o||null==l.return||l.return()}finally{if(c)throw u}}return[2,s]}})}).call(this)}},{key:"readContiguousBoxes",value:function(e){for(var r=e.filePos;e.filePos-r<=e.length-w.MIN_BOX_HEADER_SIZE&&this.traverseBox(e););}},{key:"iterateContiguousBoxes",value:function(e){var r,n,a;return(0,p._)(this,function(i){switch(i.label){case 0:r=e.filePos,i.label=1;case 1:if(!(e.filePos-r<=e.length-w.MIN_BOX_HEADER_SIZE)||(n=e.filePos,!(a=(0,w.readBoxHeader)(e))))return[3,3];return[4,{boxInfo:a,slice:e}];case 2:return i.sent(),e.filePos=n+a.totalSize,[3,1];case 3:return[2]}})}},{key:"traverseBox",value:function(e){var r=e.filePos,n=(0,w.readBoxHeader)(e);if(!n)return!1;var a=e.filePos,i=r+n.totalSize;switch(n.name){case"mdia":case"minf":case"dinf":case"mfra":case"edts":case"wave":this.readContiguousBoxes(e.slice(a,n.contentSize));break;case"mvhd":var s=(0,T.readU8)(e);e.skip(3),1===s?(e.skip(16),this.movieTimescale=(0,T.readU32Be)(e),this.movieDurationInTimescale=(0,T.readU64Be)(e)):(e.skip(8),this.movieTimescale=(0,T.readU32Be)(e),this.movieDurationInTimescale=(0,T.readU32Be)(e));break;case"trak":var o={id:-1,demuxer:this,inputTrack:null,disposition:(0,d._)({},x.DEFAULT_TRACK_DISPOSITION),info:null,timescale:-1,durationInMovieTimescale:-1,durationInMediaTimescale:-1,rotation:0,internalCodecId:null,name:null,languageCode:_.UNDETERMINED_LANGUAGE,sampleTableByteOffset:-1,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:0,editListOffset:0};this.currentTrack=o,this.readContiguousBoxes(e.slice(a,n.contentSize)),-1!==o.id&&-1!==o.timescale&&null!==o.info&&("video"===o.info.type&&-1!==o.info.width?(o.inputTrack=new(0,k.InputVideoTrack)(this.input,new j(o)),this.tracks.push(o)):"audio"===o.info.type&&-1!==o.info.numberOfChannels&&(o.inputTrack=new(0,k.InputAudioTrack)(this.input,new P(o)),this.tracks.push(o))),this.currentTrack=null;break;case"tkhd":var c=this.currentTrack;if(!c)break;var u=(0,T.readU8)(e),l=(0,T.readU24Be)(e);if(c.disposition.default=!!(1&l),0===u)e.skip(8),c.id=(0,T.readU32Be)(e),e.skip(4),c.durationInMovieTimescale=(0,T.readU32Be)(e);else if(1===u)e.skip(16),c.id=(0,T.readU32Be)(e),e.skip(4),c.durationInMovieTimescale=(0,T.readU64Be)(e);else throw Error("Incorrect track header version ".concat(u,"."));e.skip(16);var f=[(0,w.readFixed_16_16)(e),(0,w.readFixed_16_16)(e),(0,w.readFixed_2_30)(e),(0,w.readFixed_16_16)(e),(0,w.readFixed_16_16)(e),(0,w.readFixed_2_30)(e),(0,w.readFixed_16_16)(e),(0,w.readFixed_16_16)(e),(0,w.readFixed_2_30)(e)],h=(0,_.normalizeRotation)((0,_.roundToMultiple)(F(f),90));(0,_.assert)(0===h||90===h||180===h||270===h),c.rotation=h;break;case"elst":var p=this.currentTrack;if(!p)break;var b=(0,T.readU8)(e);e.skip(3);for(var y=!1,S=0,I=(0,T.readU32Be)(e),E=0;E<I;E++){var C=1===b?(0,T.readU64Be)(e):(0,T.readU32Be)(e),A=1===b?(0,T.readI64Be)(e):(0,T.readI32Be)(e),B=(0,w.readFixed_16_16)(e);if(0!==C){if(y){console.warn("Unsupported edit list: multiple edits are not currently supported. Only using first edit.");break}if(-1===A){S+=C;continue}if(1!==B){console.warn("Unsupported edit list entry: media rate must be 1.");break}p.editListPreviousSegmentDurations=S,p.editListOffset=A,y=!0}}break;case"mdhd":var M=this.currentTrack;if(!M)break;var R=(0,T.readU8)(e);e.skip(3),0===R?(e.skip(8),M.timescale=(0,T.readU32Be)(e),M.durationInMediaTimescale=(0,T.readU32Be)(e)):1===R&&(e.skip(16),M.timescale=(0,T.readU32Be)(e),M.durationInMediaTimescale=(0,T.readU64Be)(e));var U=(0,T.readU16Be)(e);if(U>0){M.languageCode="";for(var O=0;O<3;O++)M.languageCode=String.fromCharCode(96+(31&U))+M.languageCode,U>>=5;(0,_.isIso639Dash2LanguageCode)(M.languageCode)||(M.languageCode=_.UNDETERMINED_LANGUAGE)}break;case"hdlr":var L=this.currentTrack;if(!L)break;e.skip(8);var N=(0,T.readAscii)(e,4);"vide"===N?L.info={type:"video",width:-1,height:-1,codec:null,codecDescription:null,colorSpace:null,avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null}:"soun"===N&&(L.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null});break;case"stbl":var V=this.currentTrack;if(!V)break;V.sampleTableByteOffset=r,this.readContiguousBoxes(e.slice(a,n.contentSize));break;case"stsd":var z=this.currentTrack;if(!z||null===z.info||z.sampleTable)break;var H=(0,T.readU8)(e);e.skip(3);for(var G=(0,T.readU32Be)(e),q=0;q<G;q++){var W=e.filePos,K=(0,w.readBoxHeader)(e);if(!K)break;z.internalCodecId=K.name;var X=K.name.toLowerCase();if("video"===z.info.type)"avc1"===X||"avc3"===X?(z.info.codec="avc",z.info.avcType="avc1"===X?1:3):"hvc1"===X||"hev1"===X?z.info.codec="hevc":"vp08"===X?z.info.codec="vp8":"vp09"===X?z.info.codec="vp9":"av01"===X?z.info.codec="av1":console.warn("Unsupported video codec (sample entry type '".concat(K.name,"').")),e.skip(24),z.info.width=(0,T.readU16Be)(e),z.info.height=(0,T.readU16Be)(e),e.skip(50),this.readContiguousBoxes(e.slice(e.filePos,W+K.totalSize-e.filePos));else{"mp4a"===X||("opus"===X?z.info.codec="opus":"flac"===X?z.info.codec="flac":"twos"===X||"sowt"===X||"raw "===X||"in24"===X||"in32"===X||"fl32"===X||"fl64"===X||"lpcm"===X||"ipcm"===X||"fpcm"===X||("ulaw"===X?z.info.codec="ulaw":"alaw"===X?z.info.codec="alaw":console.warn("Unsupported audio codec (sample entry type '".concat(K.name,"').")))),e.skip(8);var Q=(0,T.readU16Be)(e);e.skip(6);var Z=(0,T.readU16Be)(e),Y=(0,T.readU16Be)(e);e.skip(4);var J=(0,T.readU32Be)(e)/65536;if(0===H&&Q>0){if(1===Q)e.skip(4),Y=8*(0,T.readU32Be)(e),e.skip(8);else if(2===Q){e.skip(4),J=(0,T.readF64Be)(e),Z=(0,T.readU32Be)(e),e.skip(4),Y=(0,T.readU32Be)(e);var $=(0,T.readU32Be)(e);if(e.skip(8),"lpcm"===X){var ee=Y+7>>3,et=!!(1&$),er=!!(2&$),en=4&$?-1:0;Y>0&&Y<=64&&(et?32===Y&&(z.info.codec=er?"pcm-f32be":"pcm-f32"):en&1<<ee-1?1===ee?z.info.codec="pcm-s8":2===ee?z.info.codec=er?"pcm-s16be":"pcm-s16":3===ee?z.info.codec=er?"pcm-s24be":"pcm-s24":4===ee&&(z.info.codec=er?"pcm-s32be":"pcm-s32"):1===ee&&(z.info.codec="pcm-u8")),null===z.info.codec&&console.warn("Unsupported PCM format.")}}}"opus"===z.info.codec&&(J=m.OPUS_SAMPLE_RATE),z.info.numberOfChannels=Z,z.info.sampleRate=J,"twos"===X?8===Y?z.info.codec="pcm-s8":16===Y?z.info.codec="pcm-s16be":(console.warn("Unsupported sample size ".concat(Y," for codec 'twos'.")),z.info.codec=null):"sowt"===X?8===Y?z.info.codec="pcm-s8":16===Y?z.info.codec="pcm-s16":(console.warn("Unsupported sample size ".concat(Y," for codec 'sowt'.")),z.info.codec=null):"raw "===X?z.info.codec="pcm-u8":"in24"===X?z.info.codec="pcm-s24be":"in32"===X?z.info.codec="pcm-s32be":"fl32"===X?z.info.codec="pcm-f32be":"fl64"===X?z.info.codec="pcm-f64be":"ipcm"===X?z.info.codec="pcm-s16be":"fpcm"===X&&(z.info.codec="pcm-f32be"),this.readContiguousBoxes(e.slice(e.filePos,W+K.totalSize-e.filePos))}}break;case"avcC":var ea=this.currentTrack;if(!ea)break;(0,_.assert)(ea.info),ea.info.codecDescription=(0,T.readBytes)(e,n.contentSize);break;case"hvcC":var ei=this.currentTrack;if(!ei)break;(0,_.assert)(ei.info),ei.info.codecDescription=(0,T.readBytes)(e,n.contentSize);break;case"vpcC":var es,eo=this.currentTrack;if(!eo)break;(0,_.assert)((null==(es=eo.info)?void 0:es.type)==="video"),e.skip(4);var ec=(0,T.readU8)(e),eu=(0,T.readU8)(e),el=(0,T.readU8)(e),ed=(0,T.readU8)(e),ef=(0,T.readU8)(e),eh=(0,T.readU8)(e);eo.info.vp9CodecInfo={profile:ec,level:eu,bitDepth:el>>4,chromaSubsampling:el>>1&7,videoFullRangeFlag:1&el,colourPrimaries:ed,transferCharacteristics:ef,matrixCoefficients:eh};break;case"av1C":var ep,em=this.currentTrack;if(!em)break;(0,_.assert)((null==(ep=em.info)?void 0:ep.type)==="video"),e.skip(1);var eg=(0,T.readU8)(e),ev=eg>>5,eb=(0,T.readU8)(e),ek=eb>>6&1;em.info.av1CodecInfo={profile:ev,level:31&eg,tier:eb>>7,bitDepth:2===ev&&ek?eb>>5&1?12:10:ek?10:8,monochrome:eb>>4&1,chromaSubsamplingX:eb>>3&1,chromaSubsamplingY:eb>>2&1,chromaSamplePosition:3&eb};break;case"colr":var e_,ey=this.currentTrack;if(!ey||((0,_.assert)((null==(e_=ey.info)?void 0:e_.type)==="video"),"nclx"!==(0,T.readAscii)(e,4)))break;var eS=(0,T.readU16Be)(e),ew=(0,T.readU16Be)(e),eT=(0,T.readU16Be)(e),ex=!!(128&(0,T.readU8)(e));ey.info.colorSpace={primaries:_.COLOR_PRIMARIES_MAP_INVERSE[eS],transfer:_.TRANSFER_CHARACTERISTICS_MAP_INVERSE[ew],matrix:_.MATRIX_COEFFICIENTS_MAP_INVERSE[eT],fullRange:ex};break;case"esds":var eI,eE=this.currentTrack;if(!eE)break;(0,_.assert)((null==(eI=eE.info)?void 0:eI.type)==="audio"),e.skip(4);var ej=(0,T.readU8)(e);(0,_.assert)(3===ej),(0,w.readIsomVariableInteger)(e),e.skip(2);var eP=(0,T.readU8)(e);if((128&eP)!=0&&e.skip(2),(64&eP)!=0){var eC=(0,T.readU8)(e);e.skip(eC)}(32&eP)!=0&&e.skip(2);var eA=(0,T.readU8)(e);(0,_.assert)(4===eA);var eB=(0,w.readIsomVariableInteger)(e),eM=e.filePos,eD=(0,T.readU8)(e);if(64===eD||103===eD?(eE.info.codec="aac",eE.info.aacCodecInfo={isMpeg2:103===eD}):105===eD||107===eD?eE.info.codec="mp3":221===eD?eE.info.codec="vorbis":console.warn("Unsupported audio codec (objectTypeIndication ".concat(eD,") - discarding track.")),e.skip(12),eB>e.filePos-eM){var eF=(0,T.readU8)(e);(0,_.assert)(5===eF);var eR=(0,w.readIsomVariableInteger)(e);if(eE.info.codecDescription=(0,T.readBytes)(e,eR),"aac"===eE.info.codec){var eU=(0,m.parseAacAudioSpecificConfig)(eE.info.codecDescription);null!==eU.numberOfChannels&&(eE.info.numberOfChannels=eU.numberOfChannels),null!==eU.sampleRate&&(eE.info.sampleRate=eU.sampleRate)}}break;case"enda":var eO,eL=this.currentTrack;if(!eL)break;(0,_.assert)((null==(eO=eL.info)?void 0:eO.type)==="audio"),255&(0,T.readU16Be)(e)&&("pcm-s16be"===eL.info.codec?eL.info.codec="pcm-s16":"pcm-s24be"===eL.info.codec?eL.info.codec="pcm-s24":"pcm-s32be"===eL.info.codec?eL.info.codec="pcm-s32":"pcm-f32be"===eL.info.codec?eL.info.codec="pcm-f32":"pcm-f64be"===eL.info.codec&&(eL.info.codec="pcm-f64"));break;case"pcmC":var eN,eV=this.currentTrack;if(!eV)break;(0,_.assert)((null==(eN=eV.info)?void 0:eN.type)==="audio"),e.skip(4);var ez=!!(1&(0,T.readU8)(e)),eH=(0,T.readU8)(e);"pcm-s16be"===eV.info.codec?ez?16===eH?eV.info.codec="pcm-s16":24===eH?eV.info.codec="pcm-s24":32===eH?eV.info.codec="pcm-s32":(console.warn("Invalid ipcm sample size ".concat(eH,".")),eV.info.codec=null):16===eH?eV.info.codec="pcm-s16be":24===eH?eV.info.codec="pcm-s24be":32===eH?eV.info.codec="pcm-s32be":(console.warn("Invalid ipcm sample size ".concat(eH,".")),eV.info.codec=null):"pcm-f32be"===eV.info.codec&&(ez?32===eH?eV.info.codec="pcm-f32":64===eH?eV.info.codec="pcm-f64":(console.warn("Invalid fpcm sample size ".concat(eH,".")),eV.info.codec=null):32===eH?eV.info.codec="pcm-f32be":64===eH?eV.info.codec="pcm-f64be":(console.warn("Invalid fpcm sample size ".concat(eH,".")),eV.info.codec=null));break;case"dOps":var eG,eq,eW=this.currentTrack;if(!eW)break;(0,_.assert)((null==(eG=eW.info)?void 0:eG.type)==="audio"),e.skip(1);var eK=(0,T.readU8)(e),eX=(0,T.readU16Be)(e),eQ=(0,T.readU32Be)(e),eZ=(0,T.readI16Be)(e),eY=(0,T.readU8)(e);eq=0!==eY?(0,T.readBytes)(e,2+eK):new Uint8Array(0);var eJ=new Uint8Array(19+eq.byteLength),e$=new DataView(eJ.buffer);e$.setUint32(0,0x4f707573,!1),e$.setUint32(4,0x48656164,!1),e$.setUint8(8,1),e$.setUint8(9,eK),e$.setUint16(10,eX,!0),e$.setUint32(12,eQ,!0),e$.setInt16(16,eZ,!0),e$.setUint8(18,eY),eJ.set(eq,19),eW.info.codecDescription=eJ,eW.info.numberOfChannels=eK;break;case"dfLa":var e0,e1=this.currentTrack;if(!e1)break;(0,_.assert)((null==(e0=e1.info)?void 0:e0.type)==="audio"),e.skip(4);for(var e2=e.filePos;e.filePos<i;){var e3=(0,T.readU8)(e),e4=(0,T.readU24Be)(e);if((127&e3)===g.FlacBlockType.STREAMINFO){e.skip(10);var e8=(0,T.readU32Be)(e),e6=e8>>>12,e5=(e8>>9&7)+1;e1.info.sampleRate=e6,e1.info.numberOfChannels=e5,e.skip(20)}else e.skip(e4);if(128&e3)break}var e7=e.filePos;e.filePos=e2;var e9=(0,T.readBytes)(e,e7-e2),te=new Uint8Array(4+e9.byteLength);new DataView(te.buffer).setUint32(0,0x664c6143,!1),te.set(e9,4),e1.info.codecDescription=te;break;case"stts":var tt=this.currentTrack;if(!tt||!tt.sampleTable)break;e.skip(4);for(var tr=(0,T.readU32Be)(e),tn=0,ta=0,ti=0;ti<tr;ti++){var ts=(0,T.readU32Be)(e),to=(0,T.readU32Be)(e);tt.sampleTable.sampleTimingEntries.push({startIndex:tn,startDecodeTimestamp:ta,count:ts,delta:to}),tn+=ts,ta+=ts*to}break;case"ctts":var tc=this.currentTrack;if(!tc||!tc.sampleTable)break;e.skip(4);for(var tu=(0,T.readU32Be)(e),tl=0,td=0;td<tu;td++){var tf=(0,T.readU32Be)(e),th=(0,T.readI32Be)(e);tc.sampleTable.sampleCompositionTimeOffsets.push({startIndex:tl,count:tf,offset:th}),tl+=tf}break;case"stsz":var tp=this.currentTrack;if(!tp||!tp.sampleTable)break;e.skip(4);var tm=(0,T.readU32Be)(e),tg=(0,T.readU32Be)(e);if(0===tm)for(var tv=0;tv<tg;tv++){var tb=(0,T.readU32Be)(e);tp.sampleTable.sampleSizes.push(tb)}else tp.sampleTable.sampleSizes.push(tm);break;case"stz2":var tk=this.currentTrack;if(!tk||!tk.sampleTable)break;e.skip(4),e.skip(3);for(var t_=(0,T.readU8)(e),ty=(0,T.readU32Be)(e),tS=(0,T.readBytes)(e,Math.ceil(ty*t_/8)),tw=new(0,_.Bitstream)(tS),tT=0;tT<ty;tT++){var tx=tw.readBits(t_);tk.sampleTable.sampleSizes.push(tx)}break;case"stss":var tI=this.currentTrack;if(!tI||!tI.sampleTable)break;e.skip(4),tI.sampleTable.keySampleIndices=[];for(var tE=(0,T.readU32Be)(e),tj=0;tj<tE;tj++){var tP=(0,T.readU32Be)(e)-1;tI.sampleTable.keySampleIndices.push(tP)}0!==tI.sampleTable.keySampleIndices[0]&&tI.sampleTable.keySampleIndices.unshift(0);break;case"stsc":var tC=this.currentTrack;if(!tC||!tC.sampleTable)break;e.skip(4);for(var tA=(0,T.readU32Be)(e),tB=0;tB<tA;tB++){var tM=(0,T.readU32Be)(e)-1,tD=(0,T.readU32Be)(e),tF=(0,T.readU32Be)(e);tC.sampleTable.sampleToChunk.push({startSampleIndex:-1,startChunkIndex:tM,samplesPerChunk:tD,sampleDescriptionIndex:tF})}for(var tR=0,tU=0;tU<tC.sampleTable.sampleToChunk.length;tU++)tC.sampleTable.sampleToChunk[tU].startSampleIndex=tR,tU<tC.sampleTable.sampleToChunk.length-1&&(tR+=(tC.sampleTable.sampleToChunk[tU+1].startChunkIndex-tC.sampleTable.sampleToChunk[tU].startChunkIndex)*tC.sampleTable.sampleToChunk[tU].samplesPerChunk);break;case"stco":var tO=this.currentTrack;if(!tO||!tO.sampleTable)break;e.skip(4);for(var tL=(0,T.readU32Be)(e),tN=0;tN<tL;tN++){var tV=(0,T.readU32Be)(e);tO.sampleTable.chunkOffsets.push(tV)}break;case"co64":var tz=this.currentTrack;if(!tz||!tz.sampleTable)break;e.skip(4);for(var tH=(0,T.readU32Be)(e),tG=0;tG<tH;tG++){var tq=(0,T.readU64Be)(e);tz.sampleTable.chunkOffsets.push(tq)}break;case"mvex":this.isFragmented=!0,this.readContiguousBoxes(e.slice(a,n.contentSize));break;case"mehd":var tW=(0,T.readU8)(e);e.skip(3);var tK=1===tW?(0,T.readU64Be)(e):(0,T.readU32Be)(e);this.movieDurationInTimescale=tK;break;case"trex":e.skip(4);var tX=(0,T.readU32Be)(e),tQ=(0,T.readU32Be)(e),tZ=(0,T.readU32Be)(e),tY=(0,T.readU32Be)(e),tJ=(0,T.readU32Be)(e);this.fragmentTrackDefaults.push({trackId:tX,defaultSampleDescriptionIndex:tQ,defaultSampleDuration:tZ,defaultSampleSize:tY,defaultSampleFlags:tJ});break;case"tfra":var t$=(0,T.readU8)(e);e.skip(3);var t0=(0,T.readU32Be)(e),t1=this.tracks.find(function(e){return e.id===t0});if(!t1)break;for(var t2=(0,T.readU32Be)(e),t3=[T.readU8,T.readU16Be,T.readU24Be,T.readU32Be],t4=t3[(48&t2)>>4],t8=t3[(12&t2)>>2],t6=t3[3&t2],t5=(0,T.readU32Be)(e),t7=0;t7<t5;t7++){var t9=1===t$?(0,T.readU64Be)(e):(0,T.readU32Be)(e),re=1===t$?(0,T.readU64Be)(e):(0,T.readU32Be)(e);t4(e),t8(e),t6(e),t1.fragmentLookupTable.push({timestamp:t9,moofOffset:re})}t1.fragmentLookupTable.sort(function(e,r){return e.timestamp-r.timestamp});for(var rt=0;rt<t1.fragmentLookupTable.length-1;rt++){var rr=t1.fragmentLookupTable[rt],rn=t1.fragmentLookupTable[rt+1];rr.timestamp===rn.timestamp&&(t1.fragmentLookupTable.splice(rt+1,1),rt--)}break;case"moof":this.currentFragment={moofOffset:r,moofSize:n.totalSize,implicitBaseDataOffset:r,trackData:new Map},this.readContiguousBoxes(e.slice(a,n.contentSize)),this.lastReadFragment=this.currentFragment,this.currentFragment=null;break;case"traf":if((0,_.assert)(this.currentFragment),this.readContiguousBoxes(e.slice(a,n.contentSize)),this.currentTrack){var ra=this.currentFragment.trackData.get(this.currentTrack.id);if(ra){var ri=this.currentTrack.currentFragmentState;(0,_.assert)(ri),null!==ri.startTimestamp&&(D(ra,ri.startTimestamp),ra.startTimestampIsFinal=!0)}this.currentTrack.currentFragmentState=null,this.currentTrack=null}break;case"tfhd":(0,_.assert)(this.currentFragment),e.skip(1);var rs,ro,rc,ru,rl=(0,T.readU24Be)(e),rd=(0,T.readU32Be)(e),rf=this.tracks.find(function(e){return e.id===rd});if(!rf)break;var rh=this.fragmentTrackDefaults.find(function(e){return e.trackId===rd});this.currentTrack=rf,rf.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:null!=(rs=null==rh?void 0:rh.defaultSampleDescriptionIndex)?rs:null,defaultSampleDuration:null!=(ro=null==rh?void 0:rh.defaultSampleDuration)?ro:null,defaultSampleSize:null!=(rc=null==rh?void 0:rh.defaultSampleSize)?rc:null,defaultSampleFlags:null!=(ru=null==rh?void 0:rh.defaultSampleFlags)?ru:null,startTimestamp:null},1&rl?rf.currentFragmentState.baseDataOffset=(0,T.readU64Be)(e):131072&rl&&(rf.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),2&rl&&(rf.currentFragmentState.sampleDescriptionIndex=(0,T.readU32Be)(e)),8&rl&&(rf.currentFragmentState.defaultSampleDuration=(0,T.readU32Be)(e)),16&rl&&(rf.currentFragmentState.defaultSampleSize=(0,T.readU32Be)(e)),32&rl&&(rf.currentFragmentState.defaultSampleFlags=(0,T.readU32Be)(e)),65536&rl&&(rf.currentFragmentState.defaultSampleDuration=0);break;case"tfdt":var rp=this.currentTrack;if(!rp)break;(0,_.assert)(rp.currentFragmentState);var rm=(0,T.readU8)(e);e.skip(3);var rg=0===rm?(0,T.readU32Be)(e):(0,T.readU64Be)(e);rp.currentFragmentState.startTimestamp=rg;break;case"trun":var rv=this.currentTrack;if(!rv)break;if((0,_.assert)(this.currentFragment),(0,_.assert)(rv.currentFragmentState),this.currentFragment.trackData.has(rv.id)){console.warn("Can't have two trun boxes for the same track in one fragment. Ignoring...");break}var rb=(0,T.readU8)(e),rk=(0,T.readU24Be)(e),r_=!!(256&rk),ry=!!(512&rk),rS=!!(1024&rk),rw=!!(2048&rk),rT=(0,T.readU32Be)(e),rx=rv.currentFragmentState.baseDataOffset;1&rk&&(rx+=(0,T.readI32Be)(e));var rI=null;4&rk&&(rI=(0,T.readU32Be)(e));var rE=rx;if(0===rT){this.currentFragment.implicitBaseDataOffset=rE;break}var rj=0,rP={track:rv,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1};this.currentFragment.trackData.set(rv.id,rP);for(var rC=0;rC<rT;rC++){var rA=void 0;r_?rA=(0,T.readU32Be)(e):((0,_.assert)(null!==rv.currentFragmentState.defaultSampleDuration),rA=rv.currentFragmentState.defaultSampleDuration);var rB=void 0;ry?rB=(0,T.readU32Be)(e):((0,_.assert)(null!==rv.currentFragmentState.defaultSampleSize),rB=rv.currentFragmentState.defaultSampleSize);var rM=void 0;rS?rM=(0,T.readU32Be)(e):((0,_.assert)(null!==rv.currentFragmentState.defaultSampleFlags),rM=rv.currentFragmentState.defaultSampleFlags),0===rC&&null!==rI&&(rM=rI);var rD=0;rw&&(rD=0===rb?(0,T.readU32Be)(e):(0,T.readI32Be)(e));var rF=!(65536&rM);rP.samples.push({presentationTimestamp:rj+rD,duration:rA,byteOffset:rE,byteSize:rB,isKeyFrame:rF}),rE+=rB,rj+=rA}rP.presentationTimestamps=rP.samples.map(function(e,r){return{presentationTimestamp:e.presentationTimestamp,sampleIndex:r}}).sort(function(e,r){return e.presentationTimestamp-r.presentationTimestamp});for(var rR=0;rR<rP.presentationTimestamps.length;rR++){var rU=rP.presentationTimestamps[rR],rO=rP.samples[rU.sampleIndex];null===rP.firstKeyFrameTimestamp&&rO.isKeyFrame&&(rP.firstKeyFrameTimestamp=rO.presentationTimestamp),rR<rP.presentationTimestamps.length-1&&(rO.duration=rP.presentationTimestamps[rR+1].presentationTimestamp-rU.presentationTimestamp)}var rL=rP.samples[rP.presentationTimestamps[0].sampleIndex],rN=rP.samples[(0,_.last)(rP.presentationTimestamps).sampleIndex];rP.startTimestamp=rL.presentationTimestamp,rP.endTimestamp=rN.presentationTimestamp+rN.duration,this.currentFragment.implicitBaseDataOffset=rE;break;case"udta":var rV=this.iterateContiguousBoxes(e.slice(a,n.contentSize)),rz=!0,rH=!1,rG=void 0;try{for(var rq,rW=rV[Symbol.iterator]();!(rz=(rq=rW.next()).done);rz=!0){var rK,rX,rQ=rq.value,rZ=rQ.boxInfo,rY=rQ.slice;if("meta"!==rZ.name&&!this.currentTrack){var rJ,r$,r0,r1,r2,r3=rY.filePos;null!=(rJ=this.metadataTags).raw||(rJ.raw={}),"©"===rZ.name[0]?null!=(r$=this.metadataTags.raw)[r0=rZ.name]||(r$[r0]=(0,w.readMetadataStringShort)(rY)):null!=(r1=this.metadataTags.raw)[r2=rZ.name]||(r1[r2]=(0,T.readBytes)(rY,rZ.contentSize)),rY.filePos=r3}switch(rZ.name){case"meta":rY.skip(-rZ.headerSize),this.traverseBox(rY);break;case"©nam":case"name":this.currentTrack?this.currentTrack.name=_.textDecoder.decode((0,T.readBytes)(rY,rZ.contentSize)):null!=(r4=this.metadataTags).title||(r4.title=(0,w.readMetadataStringShort)(rY));break;case"©des":this.currentTrack||null!=(r8=this.metadataTags).description||(r8.description=(0,w.readMetadataStringShort)(rY));break;case"©ART":this.currentTrack||null!=(r6=this.metadataTags).artist||(r6.artist=(0,w.readMetadataStringShort)(rY));break;case"©alb":this.currentTrack||null!=(r5=this.metadataTags).album||(r5.album=(0,w.readMetadataStringShort)(rY));break;case"albr":this.currentTrack||null!=(r7=this.metadataTags).albumArtist||(r7.albumArtist=(0,w.readMetadataStringShort)(rY));break;case"©gen":this.currentTrack||null!=(r9=this.metadataTags).genre||(r9.genre=(0,w.readMetadataStringShort)(rY));break;case"©day":if(!this.currentTrack){var r4,r8,r6,r5,r7,r9,ne,nt=new Date((0,w.readMetadataStringShort)(rY));Number.isNaN(nt.getTime())||null!=(ne=this.metadataTags).date||(ne.date=nt)}break;case"©cmt":this.currentTrack||null!=(rK=this.metadataTags).comment||(rK.comment=(0,w.readMetadataStringShort)(rY));break;case"©lyr":this.currentTrack||null!=(rX=this.metadataTags).lyrics||(rX.lyrics=(0,w.readMetadataStringShort)(rY))}}}catch(e){rH=!0,rG=e}finally{try{rz||null==rW.return||rW.return()}finally{if(rH)throw rG}}break;case"meta":if(this.currentTrack)break;var nr=(0,T.readU32Be)(e);this.currentMetadataKeys=new Map,0!==nr?this.readContiguousBoxes(e.slice(a,n.contentSize)):this.readContiguousBoxes(e.slice(a+4,n.contentSize-4)),this.currentMetadataKeys=null;break;case"keys":if(!this.currentMetadataKeys)break;e.skip(4);for(var nn=(0,T.readU32Be)(e),na=0;na<nn;na++){var ni=(0,T.readU32Be)(e);e.skip(4);var ns=_.textDecoder.decode((0,T.readBytes)(e,ni-8));this.currentMetadataKeys.set(na+1,ns)}break;case"ilst":if(!this.currentMetadataKeys)break;var no=this.iterateContiguousBoxes(e.slice(a,n.contentSize)),nc=!0,nu=!1,nl=void 0;try{for(var nd,nf=no[Symbol.iterator]();!(nc=(nd=nf.next()).done);nc=!0){var nh=nd.value,np=nh.boxInfo,nm=nh.slice,ng=np.name,nv=(ng.charCodeAt(0)<<24)+(ng.charCodeAt(1)<<16)+(ng.charCodeAt(2)<<8)+ng.charCodeAt(3);this.currentMetadataKeys.has(nv)&&(ng=this.currentMetadataKeys.get(nv));var nb=(0,w.readDataBox)(nm);switch(null!=(nk=this.metadataTags).raw||(nk.raw={}),null!=(n_=this.metadataTags.raw)[ny=ng]||(n_[ny]=nb),ng){case"©nam":case"titl":case"com.apple.quicktime.title":case"title":"string"==typeof nb&&(null!=(nS=this.metadataTags).title||(nS.title=nb));break;case"©des":case"desc":case"dscp":case"com.apple.quicktime.description":case"description":"string"==typeof nb&&(null!=(nw=this.metadataTags).description||(nw.description=nb));break;case"©ART":case"com.apple.quicktime.artist":case"artist":"string"==typeof nb&&(null!=(nT=this.metadataTags).artist||(nT.artist=nb));break;case"©alb":case"albm":case"com.apple.quicktime.album":case"album":"string"==typeof nb&&(null!=(nx=this.metadataTags).album||(nx.album=nb));break;case"aART":case"album_artist":"string"==typeof nb&&(null!=(nI=this.metadataTags).albumArtist||(nI.albumArtist=nb));break;case"©cmt":case"com.apple.quicktime.comment":case"comment":"string"==typeof nb&&(null!=(nE=this.metadataTags).comment||(nE.comment=nb));break;case"©gen":case"gnre":case"com.apple.quicktime.genre":case"genre":"string"==typeof nb&&(null!=(nj=this.metadataTags).genre||(nj.genre=nb));break;case"©lyr":case"lyrics":"string"==typeof nb&&(null!=(nP=this.metadataTags).lyrics||(nP.lyrics=nb));break;case"©day":case"rldt":case"com.apple.quicktime.creationdate":case"date":if("string"==typeof nb){var nk,n_,ny,nS,nw,nT,nx,nI,nE,nj,nP,nC,nA=new Date(nb);Number.isNaN(nA.getTime())||null!=(nC=this.metadataTags).date||(nC.date=nA)}break;case"covr":case"com.apple.quicktime.artwork":nb instanceof x.RichImageData?(null!=(nB=this.metadataTags).images||(nB.images=[]),this.metadataTags.images.push({data:nb.data,kind:"coverFront",mimeType:nb.mimeType})):nb instanceof Uint8Array&&(null!=(nM=this.metadataTags).images||(nM.images=[]),this.metadataTags.images.push({data:nb,kind:"coverFront",mimeType:"image/*"}));break;case"track":if("string"==typeof nb){var nB,nM,nD,nF,nR=nb.split("/"),nU=Number.parseInt(nR[0],10),nO=nR[1]&&Number.parseInt(nR[1],10);Number.isInteger(nU)&&nU>0&&(null!=(nD=this.metadataTags).trackNumber||(nD.trackNumber=nU)),nO&&Number.isInteger(nO)&&nO>0&&(null!=(nF=this.metadataTags).tracksTotal||(nF.tracksTotal=nO))}break;case"trkn":if(nb instanceof Uint8Array&&nb.length>=6){var nL,nN,nV=(0,_.toDataView)(nb),nz=nV.getUint16(2,!1),nH=nV.getUint16(4,!1);nz>0&&(null!=(nL=this.metadataTags).trackNumber||(nL.trackNumber=nz)),nH>0&&(null!=(nN=this.metadataTags).tracksTotal||(nN.tracksTotal=nH))}break;case"disc":case"disk":if(nb instanceof Uint8Array&&nb.length>=6){var nG,nq,nW=(0,_.toDataView)(nb),nK=nW.getUint16(2,!1),nX=nW.getUint16(4,!1);nK>0&&(null!=(nG=this.metadataTags).discNumber||(nG.discNumber=nK)),nX>0&&(null!=(nq=this.metadataTags).discsTotal||(nq.discsTotal=nX))}}}}catch(e){nu=!0,nl=e}finally{try{nc||null==nf.return||nf.return()}finally{if(nu)throw nl}}}return e.filePos=i,!0}}]),r}(b.Demuxer),E=function(){"use strict";function e(r){(0,c._)(this,e),this.internalTrack=r,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}return(0,u._)(e,[{key:"getId",value:function(){return this.internalTrack.id}},{key:"getCodec",value:function(){throw Error("Not implemented on base class.")}},{key:"getInternalCodecId",value:function(){return this.internalTrack.internalCodecId}},{key:"getName",value:function(){return this.internalTrack.name}},{key:"getLanguageCode",value:function(){return this.internalTrack.languageCode}},{key:"getTimeResolution",value:function(){return this.internalTrack.timescale}},{key:"getDisposition",value:function(){return this.internalTrack.disposition}},{key:"computeDuration",value:function(){return(0,s._)(function(){var e,r,n;return(0,p._)(this,function(a){switch(a.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(r=null==(e=a.sent())?void 0:e.timestamp)?r:0)+(null!=(n=null==e?void 0:e.duration)?n:0)]}})}).call(this)}},{key:"getFirstTimestamp",value:function(){return(0,s._)(function(){var e,r;return(0,p._)(this,function(n){switch(n.label){case 0:return[4,this.getFirstPacket({metadataOnly:!0})];case 1:return[2,null!=(r=null==(e=n.sent())?void 0:e.timestamp)?r:0]}})}).call(this)}},{key:"getFirstPacket",value:function(e){return(0,s._)(function(){var r,n;return(0,p._)(this,function(a){switch(a.label){case 0:return r=this,[4,this.fetchPacketForSampleIndex(0,e)];case 1:if((n=a.sent())||!this.internalTrack.demuxer.isFragmented)return[2,n];return[2,this.performFragmentedLookup(null,function(e){return e.trackData.get(r.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,e)]}})}).call(this)}},{key:"mapTimestampIntoTimescale",value:function(e){return(0,_.roundIfAlmostInteger)(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}},{key:"getPacket",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o;return(0,p._)(this,function(c){switch(c.label){case 0:return n=this,a=this.mapTimestampIntoTimescale(e),s=C(i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a),[4,this.fetchPacketForSampleIndex(s,r)];case 1:if(o=c.sent(),!R(i)||!this.internalTrack.demuxer.isFragmented)return[2,o];return[2,this.performFragmentedLookup(null,function(e){var r=e.trackData.get(n.internalTrack.id);if(!r)return{sampleIndex:-1,correctSampleFound:!1};var i=(0,_.binarySearchLessOrEqual)(r.presentationTimestamps,a,function(e){return e.presentationTimestamp});return{sampleIndex:-1!==i?r.presentationTimestamps[i].sampleIndex:-1,correctSampleFound:-1!==i&&a<r.endTimestamp}},a,a,r)]}})}).call(this)}},{key:"getNextPacket",value:function(e,r){return(0,s._)(function(){var n,a,i;return(0,p._)(this,function(s){if(n=this,void 0!==(a=this.packetToSampleIndex.get(e)))return[2,this.fetchPacketForSampleIndex(a+1,r)];if(void 0===(i=this.packetToFragmentLocation.get(e)))throw Error("Packet was not created from this track.");return[2,this.performFragmentedLookup(i.fragment,function(e){if(e===i.fragment){var r=e.trackData.get(n.internalTrack.id);if(i.sampleIndex+1<r.samples.length)return{sampleIndex:i.sampleIndex+1,correctSampleFound:!0}}else if(e.trackData.get(n.internalTrack.id))return{sampleIndex:0,correctSampleFound:!0};return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,r)]})}).call(this)}},{key:"getKeyPacket",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o;return(0,p._)(this,function(c){switch(c.label){case 0:return n=this,a=this.mapTimestampIntoTimescale(e),s=A(i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a),[4,this.fetchPacketForSampleIndex(s,r)];case 1:if(o=c.sent(),!R(i)||!this.internalTrack.demuxer.isFragmented)return[2,o];return[2,this.performFragmentedLookup(null,function(e){var r=e.trackData.get(n.internalTrack.id);if(!r)return{sampleIndex:-1,correctSampleFound:!1};var i=(0,_.findLastIndex)(r.presentationTimestamps,function(e){return 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e.isKeyFrame});return(0,_.assert)(-1!==i),{sampleIndex:i,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,r)]})}).call(this)}},{key:"fetchPacketForSampleIndex",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o,c;return(0,p._)(this,function(u){switch(u.label){case 0:if(-1===e||!(n=B(this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),e)))return[2,null];if(!r.metadataOnly)return[3,1];return a=y.PLACEHOLDER_DATA,[3,4];case 1:if(!((i=this.internalTrack.demuxer.reader.requestSlice(n.sampleOffset,n.sampleSize))instanceof Promise))return[3,3];return[4,i];case 2:i=u.sent(),u.label=3;case 3:(0,_.assert)(i),a=(0,T.readBytes)(i,n.sampleSize),u.label=4;case 4:return s=(n.presentationTimestamp-this.internalTrack.editListOffset)/this.internalTrack.timescale,o=n.duration/this.internalTrack.timescale,c=new(0,y.EncodedPacket)(a,n.isKeyFrame?"key":"delta",s,o,e,n.sampleSize),this.packetToSampleIndex.set(c,e),[2,c]}})}).call(this)}},{key:"fetchPacketInFragment",value:function(e,r,n){return(0,s._)(function(){var a,i,s,o,c,u;return(0,p._)(this,function(l){switch(l.label){case 0:if(-1===r)return[2,null];if(a=e.trackData.get(this.internalTrack.id).samples[r],(0,_.assert)(a),!n.metadataOnly)return[3,1];return i=y.PLACEHOLDER_DATA,[3,4];case 1:if(!((s=this.internalTrack.demuxer.reader.requestSlice(a.byteOffset,a.byteSize))instanceof Promise))return[3,3];return[4,s];case 2:s=l.sent(),l.label=3;case 3:(0,_.assert)(s),i=(0,T.readBytes)(s,a.byteSize),l.label=4;case 4:return 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a=!1,i=!1,s=!1;r&&(a=1===e.readBits(1),i=1===e.readBits(1),(a||i)&&((s=1===e.readBits(1))&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),s&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5)));for(var o=0;o<=n;o++){var c=1===e.readBits(1),u=!0;c||(u=1===e.readBits(1));var l=!1;u?(0,m.readExpGolomb)(e):l=1===e.readBits(1);var d=1;l||(d=(0,m.readExpGolomb)(e)+1),a&&R(e,d,s),i&&R(e,d,s)}},R=function(e,r,n){for(var a=0;a<r;a++)(0,m.readExpGolomb)(e),(0,m.readExpGolomb)(e),n&&((0,m.readExpGolomb)(e),(0,m.readExpGolomb)(e)),e.readBits(1)},U=function(e){var r=[];r.push(e.configurationVersion),r.push((3&e.generalProfileSpace)<<6|(1&e.generalTierFlag)<<5|31&e.generalProfileIdc),r.push(e.generalProfileCompatibilityFlags>>>24&255),r.push(e.generalProfileCompatibilityFlags>>>16&255),r.push(e.generalProfileCompatibilityFlags>>>8&255),r.push(255&e.generalProfileCompatibilityFlags),r.push.apply(r,(0,f._)(e.generalConstraintIndicatorFlags)),r.push(255&e.generalLevelIdc),r.push(240|e.minSpatialSegmentationIdc>>8&15),r.push(255&e.minSpatialSegmentationIdc),r.push(252|3&e.parallelismType),r.push(252|3&e.chromaFormatIdc),r.push(248|7&e.bitDepthLumaMinus8),r.push(248|7&e.bitDepthChromaMinus8),r.push(e.avgFrameRate>>8&255),r.push(255&e.avgFrameRate),r.push((3&e.constantFrameRate)<<6|(7&e.numTemporalLayers)<<3|(1&e.temporalIdNested)<<2|3&e.lengthSizeMinusOne),r.push(255&e.arrays.length);var n=!0,a=!1,i=void 0;try{for(var s,o=e.arrays[Symbol.iterator]();!(n=(s=o.next()).done);n=!0){var c=s.value;r.push((1&c.arrayCompleteness)<<7|63&c.nalUnitType),r.push(c.nalUnits.length>>8&255),r.push(255&c.nalUnits.length);var u=!0,l=!1,d=void 0;try{for(var h,p=c.nalUnits[Symbol.iterator]();!(u=(h=p.next()).done);u=!0){var m=h.value;r.push(m.length>>8&255),r.push(255&m.length);for(var g=0;g<m.length;g++)r.push(m[g])}}catch(e){l=!0,d=e}finally{try{u||null==p.return||p.return()}finally{if(l)throw d}}}}catch(e){a=!0,i=e}finally{try{n||null==o.return||o.return()}finally{if(a)throw i}}return new Uint8Array(r)},O=function(e){var r=new(0,m.Bitstream)(e);if(2!==r.readBits(2))return null;var n=r.readBits(1),a=(r.readBits(1)<<1)+n;if(3===a&&r.skipBits(1),1===r.readBits(1)||0!==r.readBits(1)||(r.skipBits(2),4817730!==r.readBits(24)))return null;var i=8;a>=2&&(i=r.readBits(1)?12:10);var s=r.readBits(3),o=0,c=0;if(7!==s)if(c=r.readBits(1),1===a||3===a){var u=r.readBits(1),l=r.readBits(1);o=u||l?u&&!l?2:1:3,r.skipBits(1)}else o=1;else o=3,c=1;var d=(r.readBits(16)+1)*(r.readBits(16)+1),f=(0,m.last)(p.VP9_LEVEL_TABLE).level,h=!0,g=!1,b=void 0;try{for(var k,_=p.VP9_LEVEL_TABLE[Symbol.iterator]();!(h=(k=_.next()).done);h=!0){var y=k.value;if(d<=y.maxPictureSize){f=y.level;break}}}catch(e){g=!0,b=e}finally{try{h||null==_.return||_.return()}finally{if(g)throw b}}return{profile:a,level:f,bitDepth:i,chromaSubsampling:o,videoFullRangeFlag:c,colourPrimaries:2===s?1:1===s?6:2,transferCharacteristics:2===s?1:1===s?6:2,matrixCoefficients:7===s?0:2===s?1:1===s?6:2}},L=function(e){var r,n,a,i,s,o,c;return(0,h._)(this,function(u){switch(u.label){case 0:r=new(0,m.Bitstream)(e),n=function(){for(var e=0,n=0;n<8;n++){var a=r.readAlignedByte();if(e|=(127&a)<<7*n,!(128&a))break;if(7===n&&128&a)return null}return e>=0xffffffff?null:e},u.label=1;case 1:if(!(r.getBitsLeft()>=8))return[3,3];if(r.skipBits(1),a=r.readBits(4),i=r.readBits(1),s=r.readBits(1),r.skipBits(1),i&&r.skipBits(8),o=void 0,s){if(null===(c=n()))return[2];o=c}else 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s=e("@swc/helpers/cjs/_async_iterator.cjs"),o=e("@swc/helpers/cjs/_async_to_generator.cjs"),c=e("@swc/helpers/cjs/_call_super.cjs"),u=e("@swc/helpers/cjs/_class_call_check.cjs"),l=e("@swc/helpers/cjs/_create_class.cjs"),d=e("@swc/helpers/cjs/_inherits.cjs"),f=e("@swc/helpers/cjs/_ts_generator.cjs"),h=e("./codec-data.js"),p=e("./custom-coder.js"),m=e("./media-sink.js"),g=e("./misc.js"),b=e("./packet.js"),k=function(){"use strict";function e(r,n){(0,u._)(this,e),this.input=r,this._backing=n}return(0,l._)(e,[{key:"isVideoTrack",value:function(){return this instanceof _}},{key:"isAudioTrack",value:function(){return this instanceof y}},{key:"id",get:function(){return this._backing.getId()}},{key:"internalCodecId",get:function(){return this._backing.getInternalCodecId()}},{key:"languageCode",get:function(){return this._backing.getLanguageCode()}},{key:"name",get:function(){return this._backing.getName()}},{key:"timeResolution",get:function(){return this._backing.getTimeResolution()}},{key:"disposition",get:function(){return this._backing.getDisposition()}},{key:"getFirstTimestamp",value:function(){return this._backing.getFirstTimestamp()}},{key:"computeDuration",value:function(){return this._backing.computeDuration()}},{key:"computePacketStats",value:function(){return(0,o._)(function(){var e,r,n,a,i,o,c,u,l,d,h,p,g,b=arguments;return(0,f._)(this,function(f){switch(f.label){case 0:e=b.length>0&&void 0!==b[0]?b[0]:1/0,r=new(0,m.EncodedPacketSink)(this),n=1/0,a=-1/0,i=0,o=0,c=!1,u=!1,f.label=1;case 1:f.trys.push([1,6,7,12]),d=(0,s._)(r.packets(void 0,void 0,{metadataOnly:!0})),f.label=2;case 2:return[4,d.next()];case 3:if(!(c=!(h=f.sent()).done)||(p=h.value,i>=e&&p.timestamp>=a))return[3,5];n=Math.min(n,p.timestamp),a=Math.max(a,p.timestamp+p.duration),i++,o+=p.byteLength,f.label=4;case 4:return c=!1,[3,2];case 5:return[3,12];case 6:return g=f.sent(),u=!0,l=g,[3,12];case 7:if(f.trys.push([7,,10,11]),!(c&&null!=d.return))return[3,9];return[4,d.return()];case 8:f.sent(),f.label=9;case 9:return[3,11];case 10:if(u)throw l;return[7];case 11:return[7];case 12:return[2,{packetCount:i,averagePacketRate:i?Number((i/(a-n)).toPrecision(16)):0,averageBitrate:i?Number((8*o/(a-n)).toPrecision(16)):0}]}})}).apply(this,arguments)}}]),e}(),_=function(e){"use strict";function r(e,n){var a;return(0,u._)(this,r),(a=(0,c._)(this,r,[e,n]))._backing=n,a}return(0,d._)(r,e),(0,l._)(r,[{key:"type",get:function(){return"video"}},{key:"codec",get:function(){return this._backing.getCodec()}},{key:"codedWidth",get:function(){return this._backing.getCodedWidth()}},{key:"codedHeight",get:function(){return this._backing.getCodedHeight()}},{key:"rotation",get:function(){return this._backing.getRotation()}},{key:"displayWidth",get:function(){return this._backing.getRotation()%180==0?this._backing.getCodedWidth():this._backing.getCodedHeight()}},{key:"displayHeight",get:function(){return this._backing.getRotation()%180==0?this._backing.getCodedHeight():this._backing.getCodedWidth()}},{key:"getColorSpace",value:function(){return this._backing.getColorSpace()}},{key:"hasHighDynamicRange",value:function(){return(0,o._)(function(){var e;return(0,f._)(this,function(r){switch(r.label){case 0:return[4,this._backing.getColorSpace()];case 1:return[2,"bt2020"===(e=r.sent()).primaries||"smpte432"===e.primaries||"pg"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix]}})}).call(this)}},{key:"canBeTransparent",value:function(){return this._backing.canBeTransparent()}},{key:"getDecoderConfig",value:function(){return this._backing.getDecoderConfig()}},{key:"getCodecParameterString",value:function(){return(0,o._)(function(){var e,r;return(0,f._)(this,function(n){switch(n.label){case 0:return[4,this._backing.getDecoderConfig()];case 1:return[2,null!=(r=null==(e=n.sent())?void 0:e.codec)?r:null]}})}).call(this)}},{key:"canDecode",value:function(){return(0,o._)(function(){var e,r;return(0,f._)(this,function(n){switch(n.label){case 0:return n.trys.push([0,3,,4]),[4,this._backing.getDecoderConfig()];case 1:if(!(e=n.sent()))return[2,!1];if(r=this._backing.getCodec(),(0,g.assert)(null!==r),p.customVideoDecoders.some(function(n){return n.supports(r,e)}))return[2,!0];if("undefined"==typeof VideoDecoder)return[2,!1];return[4,VideoDecoder.isConfigSupported(e)];case 2:return[2,!0===n.sent().supported];case 3:return console.error("Error during decodability check:",n.sent()),[2,!1];case 4:return[2]}})}).call(this)}},{key:"determinePacketType",value:function(e){return(0,o._)(function(){var r;return(0,f._)(this,function(n){switch(n.label){case 0:if(!(e instanceof b.EncodedPacket))throw TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw TypeError("packet must not be metadata-only to determine its type.");if(null===this.codec)return[2,null];return[4,this.getDecoderConfig()];case 1:return r=n.sent(),(0,g.assert)(r),[2,(0,h.determineVideoPacketType)(this.codec,r,e.data)]}})}).call(this)}}]),r}(k),y=function(e){"use strict";function r(e,n){var a;return(0,u._)(this,r),(a=(0,c._)(this,r,[e,n]))._backing=n,a}return(0,d._)(r,e),(0,l._)(r,[{key:"type",get:function(){return"audio"}},{key:"codec",get:function(){return this._backing.getCodec()}},{key:"numberOfChannels",get:function(){return this._backing.getNumberOfChannels()}},{key:"sampleRate",get:function(){return this._backing.getSampleRate()}},{key:"getDecoderConfig",value:function(){return this._backing.getDecoderConfig()}},{key:"getCodecParameterString",value:function(){return(0,o._)(function(){var e,r;return(0,f._)(this,function(n){switch(n.label){case 0:return[4,this._backing.getDecoderConfig()];case 1:return[2,null!=(r=null==(e=n.sent())?void 0:e.codec)?r:null]}})}).call(this)}},{key:"canDecode",value:function(){return(0,o._)(function(){var e,r;return(0,f._)(this,function(n){switch(n.label){case 0:return 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2:if("delta"===i.sent())return[2,this.getNextKeyPacket(n,r)];return[2,n]}})}).apply(this,arguments)}},{key:"packets",value:function(e,r){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};if(void 0!==e&&!(e instanceof x.EncodedPacket))throw TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!(null==n?void 0:n.metadataOnly))throw TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==r&&!(r instanceof x.EncodedPacket))throw TypeError("endPacket must be an EncodedPacket.");if(j(n),this._track.input._disposed)throw new(0,S.InputDisposedError);var a=[],i=(0,T.promiseWithResolvers)(),s=i.promise,c=i.resolve,u=(0,T.promiseWithResolvers)(),l=u.promise,f=u.resolve,h=!1,p=!1,m=null,g=[];(0,o._)(function(){var i,o,u,d;return(0,b._)(this,function(m){switch(m.label){case 0:if(null==e)return[3,1];return o=e,[3,3];case 1:return[4,this.getFirstPacket(n)];case 2:o=m.sent(),m.label=3;case 3:i=o,m.label=4;case 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f=function(e){if(l.alphaQueue.length>0){var r=l.alphaQueue.shift();(0,T.assert)(void 0!==r),l.mergeAlpha(e,r)}else l.colorQueue.push(e)};if("avc"===a&&l.decoderConfig.description&&(0,T.isChromium)()){var m=(0,_.deserializeAvcDecoderConfigurationRecord)((0,T.toUint8Array)(l.decoderConfig.description));if(m&&m.sequenceParameterSets.length>0){var g=(0,_.parseAvcSps)(m.sequenceParameterSets[0]);g&&0===g.frameMbsOnlyFlag&&(l.decoderConfig=(0,p._)((0,h._)({},l.decoderConfig),{hardwareAcceleration:"prefer-software"}))}}l.decoder=new VideoDecoder({output:function(e){try{f(e)}catch(e){l.onError(e)}},error:n}),l.decoder.configure(l.decoderConfig)}return l}return(0,f._)(r,e),(0,l._)(r,[{key:"getDecodeQueueSize",value:function(){var e,r;return this.customDecoder?this.customDecoderQueueSize:((0,T.assert)(this.decoder),Math.max(this.decoder.decodeQueueSize,null!=(r=null==(e=this.alphaDecoder)?void 0:e.decodeQueueSize)?r:0))}},{key:"decode",value:function(e){var r=this;if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}this.currentPacketIndex++,this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(function(){return r.customDecoder.decode(e)}).then(function(){return r.customDecoderQueueSize--})):((0,T.assert)(this.decoder),(0,T.isWebKit)()||(0,T.insertSorted)(this.inputTimestamps,e.timestamp,function(e){return e}),this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e))}},{key:"decodeAlphaData",value:function(e){var r=this;if(!e.sideData.alpha||this.mergerCreationFailed)return void this.pushNullAlphaFrame();if(!this.merger)try{this.merger=new R}catch(r){console.error("Due to an error, only color data will be decoded.",r),this.mergerCreationFailed=!0,this.decodeAlphaData(e);return}if(!this.alphaDecoder){var n=function(e){if(r.alphaDecoderQueueSize--,r.colorQueue.length>0){var n=r.colorQueue.shift();(0,T.assert)(void 0!==n),r.mergeAlpha(n,e)}else r.alphaQueue.push(e);for(r.decodedAlphaChunkCount++;r.nullAlphaFrameQueue.length>0&&r.nullAlphaFrameQueue[0]===r.decodedAlphaChunkCount;)if(r.nullAlphaFrameQueue.shift(),r.colorQueue.length>0){var a=r.colorQueue.shift();(0,T.assert)(void 0!==a),r.mergeAlpha(a,null)}else r.alphaQueue.push(null)};this.alphaDecoder=new VideoDecoder({output:function(e){try{n(e)}catch(e){r.onError(e)}},error:this.onError}),this.alphaDecoder.configure(this.decoderConfig)}var a=(0,_.determineVideoPacketType)(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===a),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(null!=a?a:e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}},{key:"pushNullAlphaFrame",value:function(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}},{key:"hasHevcRaslPicture",value:function(e){return(0,_.extractHevcNalUnits)(e,this.decoderConfig).some(function(e){var r=(0,_.extractNalUnitTypeForHevc)(e);return r===_.HevcNalUnitType.RASL_N||r===_.HevcNalUnitType.RASL_R})}},{key:"sampleHandler",value:function(e){if((0,T.isWebKit)()){if(this.sampleQueue.length>0&&e.timestamp>=(0,T.last)(this.sampleQueue).timestamp){var r=!0,n=!1,a=void 0;try{for(var i,s=this.sampleQueue[Symbol.iterator]();!(r=(i=s.next()).done);r=!0){var o=i.value;this.finalizeAndEmitSample(o)}}catch(e){n=!0,a=e}finally{try{r||null==s.return||s.return()}finally{if(n)throw a}}this.sampleQueue.length=0}(0,T.insertSorted)(this.sampleQueue,e,function(e){return e.timestamp})}else{var c=this.inputTimestamps.shift();(0,T.assert)(void 0!==c),e.setTimestamp(c),this.finalizeAndEmitSample(e)}}},{key:"finalizeAndEmitSample",value:function(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}},{key:"mergeAlpha",value:function(e,r){if(!r){var n,a=new(0,E.VideoSample)(e);this.sampleHandler(a);return}(0,T.assert)(this.merger),this.merger.update(e,r),e.close(),r.close();var i=new VideoFrame(this.merger.canvas,{timestamp:e.timestamp,duration:null!=(n=e.duration)?n:void 0}),s=new(0,E.VideoSample)(i);this.sampleHandler(s)}},{key:"flush",value:function(){return(0,o._)(function(){var e,r,n,a,i,s,o,c;return(0,b._)(this,function(u){switch(u.label){case 0:if(e=this,!this.customDecoder)return[3,2];return[4,this.customDecoderCallSerializer.call(function(){return e.customDecoder.flush()})];case 1:return u.sent(),[3,4];case 2:return(0,T.assert)(this.decoder),[4,Promise.all([this.decoder.flush(),null==(r=this.alphaDecoder)?void 0:r.flush()])];case 3:u.sent(),this.colorQueue.forEach(function(e){return e.close()}),this.colorQueue.length=0,this.alphaQueue.forEach(function(e){return null==e?void 0:e.close()}),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,u.label=4;case 4:if((0,T.isWebKit)()){n=!0,a=!1,i=void 0;try{for(s=this.sampleQueue[Symbol.iterator]();!(n=(o=s.next()).done);n=!0)c=o.value,this.finalizeAndEmitSample(c)}catch(e){a=!0,i=e}finally{try{n||null==s.return||s.return()}finally{if(a)throw i}}this.sampleQueue.length=0}return this.currentPacketIndex=0,this.raslSkipped=!1,[2]}})}).call(this)}},{key:"close",value:function(){var e=this;this.customDecoder?this.customDecoderCallSerializer.call(function(){return e.customDecoder.close()}):((0,T.assert)(this.decoder),this.decoder.close(),null==(i=this.alphaDecoder)||i.close(),this.colorQueue.forEach(function(e){return e.close()}),this.colorQueue.length=0,this.alphaQueue.forEach(function(e){return null==e?void 0:e.close()}),this.alphaQueue.length=0,null==(s=this.merger)||s.close());var r=!0,n=!1,a=void 0;try{for(var i,s,o,c=this.sampleQueue[Symbol.iterator]();!(r=(o=c.next()).done);r=!0)o.value.close()}catch(e){n=!0,a=e}finally{try{r||null==c.return||c.return()}finally{if(n)throw a}}this.sampleQueue.length=0}}]),r}(B),R=function(){"use strict";function e(){(0,u._)(this,e),"undefined"!=typeof OffscreenCanvas?this.canvas=new OffscreenCanvas(300,150):this.canvas=document.createElement("canvas");var r=this.canvas.getContext("webgl2",{premultipliedAlpha:!1});if(!r)throw Error("Couldn't acquire WebGL 2 context.");this.gl=r,this.program=this.createProgram(),this.vao=this.createVAO(),this.colorTexture=this.createTexture(),this.alphaTexture=this.createTexture(),this.gl.useProgram(this.program),this.gl.uniform1i(this.gl.getUniformLocation(this.program,"u_colorTexture"),0),this.gl.uniform1i(this.gl.getUniformLocation(this.program,"u_alphaTexture"),1)}return(0,l._)(e,[{key:"createProgram",value:function(){var e=this.createShader(this.gl.VERTEX_SHADER,"#version 300 es\n in vec2 a_position;\n in vec2 a_texCoord;\n out vec2 v_texCoord;\n \n void main() {\n gl_Position = vec4(a_position, 0.0, 1.0);\n v_texCoord = a_texCoord;\n }\n "),r=this.createShader(this.gl.FRAGMENT_SHADER,"#version 300 es\n precision highp float;\n \n uniform sampler2D u_colorTexture;\n uniform sampler2D u_alphaTexture;\n in vec2 v_texCoord;\n out vec4 fragColor;\n \n void main() {\n vec3 color = texture(u_colorTexture, v_texCoord).rgb;\n float alpha = texture(u_alphaTexture, v_texCoord).r;\n fragColor = vec4(color, alpha);\n }\n "),n=this.gl.createProgram();return this.gl.attachShader(n,e),this.gl.attachShader(n,r),this.gl.linkProgram(n),n}},{key:"createShader",value:function(e,r){var n=this.gl.createShader(e);return this.gl.shaderSource(n,r),this.gl.compileShader(n),n}},{key:"createVAO",value:function(){var e=this.gl.createVertexArray();this.gl.bindVertexArray(e);var r=new Float32Array([-1,-1,0,1,1,-1,1,1,-1,1,0,0,1,1,1,0]),n=this.gl.createBuffer();this.gl.bindBuffer(this.gl.ARRAY_BUFFER,n),this.gl.bufferData(this.gl.ARRAY_BUFFER,r,this.gl.STATIC_DRAW);var a=this.gl.getAttribLocation(this.program,"a_position"),i=this.gl.getAttribLocation(this.program,"a_texCoord");return this.gl.enableVertexAttribArray(a),this.gl.vertexAttribPointer(a,2,this.gl.FLOAT,!1,16,0),this.gl.enableVertexAttribArray(i),this.gl.vertexAttribPointer(i,2,this.gl.FLOAT,!1,16,8),e}},{key:"createTexture",value:function(){var e=this.gl.createTexture();return this.gl.bindTexture(this.gl.TEXTURE_2D,e),this.gl.texParameteri(this.gl.TEXTURE_2D,this.gl.TEXTURE_WRAP_S,this.gl.CLAMP_TO_EDGE),this.gl.texParameteri(this.gl.TEXTURE_2D,this.gl.TEXTURE_WRAP_T,this.gl.CLAMP_TO_EDGE),this.gl.texParameteri(this.gl.TEXTURE_2D,this.gl.TEXTURE_MIN_FILTER,this.gl.LINEAR),this.gl.texParameteri(this.gl.TEXTURE_2D,this.gl.TEXTURE_MAG_FILTER,this.gl.LINEAR),e}},{key:"update",value:function(e,r){(e.displayWidth!==this.canvas.width||e.displayHeight!==this.canvas.height)&&(this.canvas.width=e.displayWidth,this.canvas.height=e.displayHeight),this.gl.activeTexture(this.gl.TEXTURE0),this.gl.bindTexture(this.gl.TEXTURE_2D,this.colorTexture),this.gl.texImage2D(this.gl.TEXTURE_2D,0,this.gl.RGBA,this.gl.RGBA,this.gl.UNSIGNED_BYTE,e),this.gl.activeTexture(this.gl.TEXTURE1),this.gl.bindTexture(this.gl.TEXTURE_2D,this.alphaTexture),this.gl.texImage2D(this.gl.TEXTURE_2D,0,this.gl.RGBA,this.gl.RGBA,this.gl.UNSIGNED_BYTE,r),this.gl.viewport(0,0,this.canvas.width,this.canvas.height),this.gl.clear(this.gl.COLOR_BUFFER_BIT),this.gl.bindVertexArray(this.vao),this.gl.drawArrays(this.gl.TRIANGLE_STRIP,0,4)}},{key:"close",value:function(){var e;null==(e=this.gl.getExtension("WEBGL_lose_context"))||e.loseContext(),this.gl=null}}]),e}(),U=function(e){"use strict";function r(e){var n;if((0,u._)(this,r),!(e instanceof w.InputVideoTrack))throw TypeError("videoTrack must be an InputVideoTrack.");return(n=(0,c._)(this,r))._track=e,n}return(0,f._)(r,e),(0,l._)(r,[{key:"_createDecoder",value:function(e,r){return(0,o._)(function(){var n,a,i,s;return(0,b._)(this,function(o){switch(o.label){case 0:return[4,this._track.canDecode()];case 1:if(!o.sent())throw Error("This video track cannot be decoded by this browser. Make sure to check decodability before using a track.");return n=this._track.codec,a=this._track.rotation,[4,this._track.getDecoderConfig()];case 2:return i=o.sent(),s=this._track.timeResolution,(0,T.assert)(n&&i),[2,new F(e,r,n,i,a,s)]}})}).call(this)}},{key:"_createPacketSink",value:function(){return new A(this._track)}},{key:"getSample",value:function(e){return(0,o._)(function(){var r,n,a,i,o,c;return(0,b._)(this,function(u){switch(u.label){case 0:P(e),r=!1,n=!1,u.label=1;case 1:u.trys.push([1,6,7,12]),i=(0,s._)(this.mediaSamplesAtTimestamps([e])),u.label=2;case 2:return[4,i.next()];case 3:if(!(r=!(o=u.sent()).done))return[3,5];return[2,o.value];case 4:return r=!1,[3,2];case 5:return[3,12];case 6:return c=u.sent(),n=!0,a=c,[3,12];case 7:if(u.trys.push([7,,10,11]),!(r&&null!=i.return))return[3,9];return[4,i.return()];case 8:u.sent(),u.label=9;case 9:return[3,11];case 10:if(n)throw a;return[7];case 11:return[7];case 12:throw Error("Internal error: Iterator returned nothing.")}})}).call(this)}},{key:"samples",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:1/0;return this.mediaSamplesInRange(e,r)}},{key:"samplesAtTimestamps",value:function(e){return this.mediaSamplesAtTimestamps(e)}}]),r}(M),O=function(){"use strict";function e(r){var n,a,i,s,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if((0,u._)(this,e),this._nextCanvasIndex=0,!(r instanceof w.InputVideoTrack))throw TypeError("videoTrack must be an InputVideoTrack.");if(o&&(void 0===o?"undefined":(0,g._)(o))!=="object")throw TypeError("options must be an object.");if(void 0!==o.alpha&&"boolean"!=typeof o.alpha)throw TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==o.width&&(!Number.isInteger(o.width)||o.width<=0))throw TypeError("options.width, when defined, must be a positive integer.");if(void 0!==o.height&&(!Number.isInteger(o.height)||o.height<=0))throw TypeError("options.height, when defined, must be a positive integer.");if(void 0!==o.fit&&!["fill","contain","cover"].includes(o.fit))throw TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==o.width&&void 0!==o.height&&void 0===o.fit)throw TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==o.rotation&&![0,90,180,270].includes(o.rotation))throw TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==o.crop&&(0,E.validateCropRectangle)(o.crop,"options."),void 0!==o.poolSize&&("number"!=typeof o.poolSize||!Number.isInteger(o.poolSize)||o.poolSize<0))throw TypeError("poolSize must be a non-negative integer.");var c=null!=(n=o.rotation)?n:r.rotation,l=(0,m._)(c%180==0?[r.codedWidth,r.codedHeight]:[r.codedHeight,r.codedWidth],2),d=l[0],f=l[1],h=o.crop;h&&(0,E.clampCropRectangle)(h,d,f);var p=(0,m._)(h?[h.width,h.height]:[d,f],2),b=p[0],k=p[1],_=b/k;void 0!==o.width&&void 0===o.height?k=Math.round((b=o.width)/_):void 0===o.width&&void 0!==o.height?b=Math.round((k=o.height)*_):void 0!==o.width&&void 0!==o.height&&(b=o.width,k=o.height),this._videoTrack=r,this._alpha=null!=(a=o.alpha)&&a,this._width=b,this._height=k,this._rotation=c,this._crop=h,this._fit=null!=(i=o.fit)?i:"fill",this._videoSampleSink=new U(r),this._canvasPool=Array.from({length:null!=(s=o.poolSize)?s:0},function(){return null})}return(0,l._)(e,[{key:"_videoSampleToWrappedCanvas",value:function(e){var r=this._canvasPool[this._nextCanvasIndex],n=!1;r||("undefined"!=typeof document?((r=document.createElement("canvas")).width=this._width,r.height=this._height):r=new OffscreenCanvas(this._width,this._height),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),n=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);var a=r.getContext("2d",{alpha:this._alpha||(0,T.isFirefox)()});(0,T.assert)(a),a.resetTransform(),n||(!this._alpha&&(0,T.isFirefox)()?(a.fillStyle="black",a.fillRect(0,0,this._width,this._height)):a.clearRect(0,0,this._width,this._height)),e.drawWithFit(a,{fit:this._fit,rotation:this._rotation,crop:this._crop});var i={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),i}},{key:"getCanvas",value:function(e){return(0,o._)(function(){var r;return(0,b._)(this,function(n){switch(n.label){case 0:return P(e),[4,this._videoSampleSink.getSample(e)];case 1:return[2,(r=n.sent())&&this._videoSampleToWrappedCanvas(r)]}})}).call(this)}},{key:"canvases",value:function(){var e=this,r=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:1/0;return(0,T.mapAsyncGenerator)(this._videoSampleSink.samples(r,n),function(r){return e._videoSampleToWrappedCanvas(r)})}},{key:"canvasesAtTimestamps",value:function(e){var r=this;return(0,T.mapAsyncGenerator)(this._videoSampleSink.samplesAtTimestamps(e),function(e){return e&&r._videoSampleToWrappedCanvas(e)})}}]),e}(),L=function(e){"use strict";function r(e,n,a,i){(0,u._)(this,r),(s=(0,c._)(this,r,[e,n])).decoder=null,s.customDecoder=null,s.customDecoderCallSerializer=new(0,T.CallSerializer),s.customDecoderQueueSize=0,s.currentTimestamp=null;var s,o=function(r){(null===s.currentTimestamp||Math.abs(r.timestamp-s.currentTimestamp)>=r.duration)&&(s.currentTimestamp=r.timestamp);var n=s.currentTimestamp;if(s.currentTimestamp+=r.duration,0===r.numberOfFrames)return void r.close();var a=i.sampleRate;r.setTimestamp(Math.round(n*a)/a),e(r)},l=y.customAudioDecoders.find(function(e){return e.supports(a,i)});return l?(s.customDecoder=new l,s.customDecoder.codec=a,s.customDecoder.config=i,s.customDecoder.onSample=function(e){if(!(e instanceof E.AudioSample))throw TypeError("The argument passed to onSample must be an 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e=this;this.customDecoder?this.customDecoderCallSerializer.call(function(){return e.customDecoder.close()}):((0,T.assert)(this.decoder),this.decoder.close())}}]),r}(B),N=function(e){"use strict";function r(e,n,a){(0,u._)(this,r),(i=(0,c._)(this,r,[e,n])).decoderConfig=a,i.currentTimestamp=null,(0,T.assert)(k.PCM_AUDIO_CODECS.includes(a.codec)),i.codec=a.codec;var i,s=(0,k.parsePcmCodec)(i.codec),o=s.dataType,l=s.sampleSize,d=s.littleEndian;switch(i.inputSampleSize=l,l){case 1:"unsigned"===o?i.readInputValue=function(e,r){return e.getUint8(r)-128}:"signed"===o?i.readInputValue=function(e,r){return e.getInt8(r)}:"ulaw"===o?i.readInputValue=function(e,r){return(0,I.fromUlaw)(e.getUint8(r))}:"alaw"===o?i.readInputValue=function(e,r){return(0,I.fromAlaw)(e.getUint8(r))}:(0,T.assert)(!1);break;case 2:"unsigned"===o?i.readInputValue=function(e,r){return e.getUint16(r,d)-32768}:"signed"===o?i.readInputValue=function(e,r){return e.getInt16(r,d)}:(0,T.assert)(!1);break;case 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270.");if(!Number.isFinite(n.timestamp))throw TypeError("init.timestamp must be a number.");if(void 0!==n.duration&&(!Number.isFinite(n.duration)||n.duration<0))throw TypeError("init.duration, when provided, must be a non-negative number.");this._data=(0,f.toUint8Array)(r).slice(),this.format=n.format,this.codedWidth=n.codedWidth,this.codedHeight=n.codedHeight,this.rotation=null!=(a=n.rotation)?a:0,this.timestamp=n.timestamp,this.duration=null!=(i=n.duration)?i:0,this.colorSpace=new VideoColorSpace(n.colorSpace)}else if("undefined"!=typeof VideoFrame&&r instanceof VideoFrame){if((null==n?void 0:n.rotation)!==void 0&&![0,90,180,270].includes(n.rotation))throw TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if((null==n?void 0:n.timestamp)!==void 0&&!Number.isFinite(null==n?void 0:n.timestamp))throw TypeError("init.timestamp, when provided, must be a number.");if((null==n?void 0:n.duration)!==void 0&&(!Number.isFinite(n.duration)||n.duration<0))throw TypeError("init.duration, when provided, must be a non-negative number.");this._data=r,this.format=r.format,this.codedWidth=r.displayWidth,this.codedHeight=r.displayHeight,this.rotation=null!=(s=null==n?void 0:n.rotation)?s:0,this.timestamp=null!=(c=null==n?void 0:n.timestamp)?c:r.timestamp/1e6,this.duration=null!=(d=null==n?void 0:n.duration)?d:(null!=(u=r.duration)?u:0)/1e6,this.colorSpace=r.colorSpace}else if("undefined"!=typeof HTMLImageElement&&r instanceof HTMLImageElement||"undefined"!=typeof SVGImageElement&&r instanceof SVGImageElement||"undefined"!=typeof ImageBitmap&&r instanceof ImageBitmap||"undefined"!=typeof HTMLVideoElement&&r instanceof HTMLVideoElement||"undefined"!=typeof HTMLCanvasElement&&r instanceof HTMLCanvasElement||"undefined"!=typeof OffscreenCanvas&&r instanceof OffscreenCanvas){if(!n||(void 0===n?"undefined":(0,l._)(n))!=="object")throw TypeError("init must be an object.");if(void 0!==n.rotation&&![0,90,180,270].includes(n.rotation))throw TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(n.timestamp))throw TypeError("init.timestamp must be a number.");if(void 0!==n.duration&&(!Number.isFinite(n.duration)||n.duration<0))throw TypeError("init.duration, when provided, must be a non-negative number.");if("undefined"!=typeof VideoFrame)return new e(new VideoFrame(r,{timestamp:Math.trunc(n.timestamp*f.SECOND_TO_MICROSECOND_FACTOR),duration:Math.trunc((null!=(h=n.duration)?h:0)*f.SECOND_TO_MICROSECOND_FACTOR)||void 0}),n);var a,i,s,c,u,d,h,p,g,b=0,k=0;if("naturalWidth"in r?(b=r.naturalWidth,k=r.naturalHeight):"videoWidth"in r?(b=r.videoWidth,k=r.videoHeight):"width"in r&&(b=Number(r.width),k=Number(r.height)),!b||!k)throw TypeError("Could not determine dimensions.");var _=new OffscreenCanvas(b,k),y=_.getContext("2d",{alpha:(0,f.isFirefox)(),willReadFrequently:!0});(0,f.assert)(y),y.drawImage(r,0,0),this._data=_,this.format="RGBX",this.codedWidth=b,this.codedHeight=k,this.rotation=null!=(p=n.rotation)?p:0,this.timestamp=n.timestamp,this.duration=null!=(g=n.duration)?g:0,this.colorSpace=new VideoColorSpace({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else throw TypeError("Invalid data type: Must be a BufferSource or CanvasImageSource.");null==m||m.register(this,{type:"video",data:this._data},this)}return(0,c._)(e,[{key:"displayWidth",get:function(){return this.rotation%180==0?this.codedWidth:this.codedHeight}},{key:"displayHeight",get:function(){return this.rotation%180==0?this.codedHeight:this.codedWidth}},{key:"microsecondTimestamp",get:function(){return Math.trunc(f.SECOND_TO_MICROSECOND_FACTOR*this.timestamp)}},{key:"microsecondDuration",get:function(){return 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e(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation})}},{key:"close",value:function(){this._closed||(null==m||m.unregister(this),b(this._data)?this._data.close():this._data=null,this._closed=!0)}},{key:"allocationSize",value:function(){if(this._closed)throw Error("VideoSample is closed.");return((0,f.assert)(null!==this._data),b(this._data))?this._data.allocationSize():this._data instanceof Uint8Array?this._data.byteLength:this.codedWidth*this.codedHeight*4}},{key:"copyTo",value:function(e){return(0,s._)(function(){var r,n;return(0,d._)(this,function(a){switch(a.label){case 0:if(!(0,f.isAllowSharedBufferSource)(e))throw TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(this._closed)throw Error("VideoSample is closed.");if((0,f.assert)(null!==this._data),!b(this._data))return[3,2];return[4,this._data.copyTo(e)];case 1:return a.sent(),[3,3];case 2:this._data instanceof Uint8Array?(0,f.toUint8Array)(e).set(this._data):(r=this._data.getContext("2d"),(0,f.assert)(r),n=r.getImageData(0,0,this.codedWidth,this.codedHeight),(0,f.toUint8Array)(e).set(n.data)),a.label=3;case 3:return[2]}})}).call(this)}},{key:"toVideoFrame",value:function(){if(this._closed)throw Error("VideoSample is closed.");return((0,f.assert)(null!==this._data),b(this._data))?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace}):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}},{key:"draw",value:function(e,r,n,a,i,s,o,c,u){var l,d=0,f=0,h=this.displayWidth,p=this.displayHeight,m=0,g=0,b=this.displayWidth,k=this.displayHeight;if(void 0!==s?(d=r,f=n,h=a,p=i,m=s,g=o,void 0!==c?(b=c,k=u):(b=h,k=p)):(m=r,g=n,void 0!==a&&(b=a,k=i)),!("undefined"!=typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!=typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(d))throw TypeError("sx must be a number.");if(!Number.isFinite(f))throw TypeError("sy must be a number.");if(!Number.isFinite(h)||h<0)throw TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(p)||p<0)throw TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(m))throw TypeError("dx must be a number.");if(!Number.isFinite(g))throw TypeError("dy must be a number.");if(!Number.isFinite(b)||b<0)throw TypeError("dWidth must be a non-negative 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R=w%180==0?1:f/h;e.translate(y/2,S/2),e.rotate(w*Math.PI/180),e.scale(1/R,R),e.translate(-y/2,-S/2),e.drawImage(this.toCanvasImageSource(),j,P,C,A,c,d,f,h),e.restore()}},{key:"_rotateSourceRegion",value:function(e,r,n,a,i){var s,o,c;return 90===i?(e=(s=[r,this.codedHeight-e-n,a,n])[0],r=s[1],n=s[2],a=s[3]):180===i?(e=(o=[this.codedWidth-e-n,this.codedHeight-r-a])[0],r=o[1]):270===i&&(e=(c=[this.codedWidth-r-a,e,a,n])[0],r=c[1],n=c[2],a=c[3]),{sx:e,sy:r,sWidth:n,sHeight:a}}},{key:"toCanvasImageSource",value:function(){if(this._closed)throw Error("VideoSample is closed.");if((0,f.assert)(null!==this._data),!(this._data instanceof Uint8Array))return this._data;var e=this.toVideoFrame();return queueMicrotask(function(){return e.close()}),e}},{key:"setRotation",value:function(e){if(![0,90,180,270].includes(e))throw TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}},{key:"setTimestamp",value:function(e){if(!Number.isFinite(e))throw TypeError("newTimestamp must be a 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TypeError(r+"crop.height must be a non-negative integer.")},y=new Set(["f32","f32-planar","s16","s16-planar","s32","s32-planar","u8","u8-planar"]),S=function(){"use strict";function e(r){if((0,o._)(this,e),this._closed=!1,E(r)){if(null===r.format)throw TypeError("AudioData with null format is not supported.");this._data=r,this.format=r.format,this.sampleRate=r.sampleRate,this.numberOfFrames=r.numberOfFrames,this.numberOfChannels=r.numberOfChannels,this.timestamp=r.timestamp/1e6,this.duration=r.numberOfFrames/r.sampleRate}else{if(!r||(void 0===r?"undefined":(0,l._)(r))!=="object")throw TypeError("Invalid AudioDataInit: must be an object.");if(!y.has(r.format))throw TypeError("Invalid AudioDataInit: invalid format.");if(!Number.isFinite(r.sampleRate)||r.sampleRate<=0)throw TypeError("Invalid AudioDataInit: sampleRate must be >0.");if(!Number.isInteger(r.numberOfChannels)||0===r.numberOfChannels)throw TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 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AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()});if(this._data.timestamp===this.microsecondTimestamp)return this._data.clone();if(T(this.format)){for(var e=this.allocationSize({planeIndex:0,format:this.format}),r=new ArrayBuffer(e*this.numberOfChannels),n=0;n<this.numberOfChannels;n++)this.copyTo(new Uint8Array(r,n*e,e),{planeIndex:n,format:this.format});return new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:r})}var a=new ArrayBuffer(this.allocationSize({planeIndex:0,format:this.format}));return this.copyTo(a,{planeIndex:0,format:this.format}),new 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s=e("@swc/helpers/cjs/_class_call_check.cjs"),o=e("@swc/helpers/cjs/_create_class.cjs"),c=e("./input.js"),u=e("./misc.js"),l=function(){"use strict";function e(r){(0,s._)(this,e),this.source=r}return(0,o._)(e,[{key:"requestSlice",value:function(e,r){if(this.source._disposed)throw new(0,c.InputDisposedError);if(null!==this.fileSize&&e+r>this.fileSize)return null;var n=e+r,a=this.source._read(e,n);return a instanceof Promise?a.then(function(r){return r?new d(r.bytes,r.view,r.offset,e,n):null}):a?new d(a.bytes,a.view,a.offset,e,n):null}},{key:"requestSliceRange",value:function(e,r,n){var a=this;if(this.source._disposed)throw new(0,c.InputDisposedError);if(null!==this.fileSize)return this.requestSlice(e,(0,u.clamp)(this.fileSize-e,r,n));var i=this.requestSlice(e,n),s=function(i){if(i)return i;var s=function(i){return(0,u.assert)(null!==i),a.requestSlice(e,(0,u.clamp)(i-e,r,n))},o=a.source._retrieveSize();return o instanceof Promise?o.then(s):s(o)};return i instanceof 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2:if((0,j.assert)(a),i=e,s=(0,C.readElementHeader)(a),(0,j.assert)(s),o=s.id,(0,j.assert)(o===C.EBMLId.Cluster),u=s.size,l=a.filePos,null!==u)return[3,4];return[4,(0,C.searchForNextElementId)(this.reader,l,C.LEVEL_0_AND_1_EBML_IDS,r.elementEndPos)];case 3:u=y.sent().pos-l,y.label=4;case 4:if(!((d=this.reader.requestSlice(l,u))instanceof Promise))return[3,6];return[4,d];case 5:d=y.sent(),y.label=6;case 6:f={segment:r,elementStartPos:i,elementEndPos:l+u,dataStartPos:l,timestamp:-1,trackData:new Map},this.currentCluster=f,d&&(f.elementEndPos=this.readContiguousElements(d,C.LEVEL_0_AND_1_EBML_IDS)),h=!0,p=!1,m=void 0;try{for(g=f.trackData[Symbol.iterator]();!(h=(b=g.next()).done);h=!0){for(S=(_=(0,k._)(b.value,2)[1]).track,(0,j.assert)(_.blocks.length>0),w=!1,T=0;T<_.blocks.length;T++)x=_.blocks[T],x.timestamp+=f.timestamp,w||(w=x.lacing!==c.None);for(I=0,_.presentationTimestamps=_.blocks.map(function(e,r){return{timestamp:e.timestamp,blockIndex:r}}).sort(function(e,r){return e.timestamp-r.timestamp});I<_.presentationTimestamps.length;I++)E=_.presentationTimestamps[I],P=_.blocks[E.blockIndex],null===_.firstKeyFrameTimestamp&&P.isKeyFrame&&(_.firstKeyFrameTimestamp=P.timestamp),I<_.presentationTimestamps.length-1?P.duration=_.presentationTimestamps[I+1].timestamp-P.timestamp:0===P.duration&&null!=S.defaultDuration&&P.lacing===c.None&&(P.duration=S.defaultDuration);w&&(this.expandLacedBlocks(_.blocks,S),_.presentationTimestamps=_.blocks.map(function(e,r){return{timestamp:e.timestamp,blockIndex:r}}).sort(function(e,r){return e.timestamp-r.timestamp})),A=_.blocks[_.presentationTimestamps[0].blockIndex],B=_.blocks[(0,j.last)(_.presentationTimestamps).blockIndex],_.startTimestamp=A.timestamp,_.endTimestamp=B.timestamp+B.duration,M=(0,j.binarySearchLessOrEqual)(S.clusterPositionCache,_.startTimestamp,function(e){return e.startTimestamp}),(-1===M||S.clusterPositionCache[M].elementStartPos!==i)&&S.clusterPositionCache.splice(M+1,0,{elementStartPos:f.elementStartPos,startTimestamp:_.startTimestamp})}}catch(e){p=!0,m=e}finally{try{h||null==g.return||g.return()}finally{if(p)throw m}}return r.lastReadCluster=f,[2,f]}})}).call(this)}},{key:"getTrackDataInCluster",value:function(e,r){var n=e.trackData.get(r);if(!n){var a=e.segment.tracks.find(function(e){return e.id===r});if(!a)return null;n={track:a,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(r,n)}return n}},{key:"expandLacedBlocks",value:function(e,r){for(var n=0;n<e.length;n++){var a,i=e[n];if(i.lacing!==c.None){i.decoded||(i.data=this.decodeBlockData(r,i.data),i.decoded=!0);var s=B.FileSlice.tempFromBytes(i.data),o=[],u=(0,B.readU8)(s)+1;switch(i.lacing){case c.Xiph:for(var l=0,d=0;d<u-1;d++)for(var f=0;s.bufferPos<s.length;){var h=(0,B.readU8)(s);if(f+=h,h<255){o.push(f),l+=f;break}}o.push(s.length-(s.bufferPos+l));break;case c.FixedSize:for(var p=Math.floor((s.length-1)/u),m=0;m<u;m++)o.push(p);break;case c.Ebml:var g=(0,C.readVarInt)(s);(0,j.assert)(null!==g);var b=g;o.push(b);for(var k=b,_=1;_<u-1;_++){var y=s.bufferPos,S=(0,C.readVarInt)(s);(0,j.assert)(null!==S),b+=S-((1<<7*(s.bufferPos-y)-1)-1),o.push(b),k+=b}o.push(s.length-(s.bufferPos+k));break;default:(0,j.assert)(!1)}(0,j.assert)(o.length===u),e.splice(n,1);for(var w=i.duration||u*(null!=(a=r.defaultDuration)?a:0),T=0;T<u;T++){var x=o[T],I=(0,B.readBytes)(s,x),E=i.timestamp+w*T/u,P=w/u;e.splice(n+T,0,{timestamp:E,duration:P,isKeyFrame:i.isKeyFrame,data:I,lacing:c.None,decoded:!0,mainAdditional:i.mainAdditional})}n+=u,n--}}}},{key:"loadSegmentMetadata",value:function(e){return(0,f._)(function(){var r,n,a,i,s,o,c,u,l,d,f;return(0,y._)(this,function(h){switch(h.label){case 0:r=!0,n=!1,a=void 0,h.label=1;case 1:h.trys.push([1,9,10,11]),i=e.seekEntries[Symbol.iterator](),h.label=2;case 2:if(r=(s=i.next()).done)return[3,8];if(((o=s.value).id!==C.EBMLId.Tags||e.tagsSeen)&&(o.id!==C.EBMLId.Attachments||e.attachmentsSeen))return[3,7];if(!((c=this.reader.requestSliceRange(e.dataStartPos+o.segmentPosition,C.MIN_HEADER_SIZE,C.MAX_HEADER_SIZE))instanceof Promise))return[3,4];return[4,c];case 3:c=h.sent(),h.label=4;case 4:if(!c||!(u=(0,C.readElementHeader)(c))||u.id!==o.id)return[3,7];if(l=u.size,(0,C.assertDefinedSize)(l),(0,j.assert)(!this.currentSegment),this.currentSegment=e,!((d=this.reader.requestSlice(c.filePos,l))instanceof Promise))return[3,6];return[4,d];case 5:d=h.sent(),h.label=6;case 6:d&&this.readContiguousElements(d),this.currentSegment=null,o.id===C.EBMLId.Tags?e.tagsSeen=!0:o.id===C.EBMLId.Attachments&&(e.attachmentsSeen=!0),h.label=7;case 7:return r=!0,[3,2];case 8:return[3,11];case 9:return f=h.sent(),n=!0,a=f,[3,11];case 10:try{r||null==i.return||i.return()}finally{if(n)throw a}return[7];case 11:return[2]}})}).call(this)}},{key:"readContiguousElements",value:function(e,r){for(var n=e.filePos;e.filePos-n<=e.length-C.MIN_HEADER_SIZE;){var a=e.filePos;if(!this.traverseElement(e,r))return a}return e.filePos}},{key:"traverseElement",value:function(e,r){var n,a,i,s,o=(0,C.readElementHeader)(e);if(!o||r&&r.includes(o.id))return!1;var c=o.id,d=o.size,f=e.filePos;switch((0,C.assertDefinedSize)(d),c){case C.EBMLId.DocType:this.isWebM="webm"===(0,C.readAsciiString)(e,d);break;case C.EBMLId.Seek:if(!this.currentSegment)break;var h={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(h),this.readContiguousElements(e.slice(f,d)),(-1===h.id||-1===h.segmentPosition)&&this.currentSegment.seekEntries.pop();break;case C.EBMLId.SeekID:var p,m=null==(p=this.currentSegment)?void 0:p.seekEntries[this.currentSegment.seekEntries.length-1];if(!m)break;m.id=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.SeekPosition:var g,k=null==(g=this.currentSegment)?void 0:g.seekEntries[this.currentSegment.seekEntries.length-1];if(!k)break;k.segmentPosition=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=(0,C.readUnsignedInt)(e,d),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case C.EBMLId.Duration:if(!this.currentSegment)break;this.currentSegment.duration=(0,C.readFloat)(e,d);break;case C.EBMLId.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:(0,b._)({},E.DEFAULT_TRACK_DISPOSITION),inputTrack:null,codecId:null,codecPrivate:null,defaultDuration:null,name:null,languageCode:j.UNDETERMINED_LANGUAGE,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(f,d)),this.currentTrack.decodingInstructions.some(function(e){var r;return(null==(r=e.data)?void 0:r.type)!=="decompress"||e.scope!==u.Block||e.data.algorithm!==l.HeaderStripping})&&(console.warn("Track #".concat(this.currentTrack.id," has an unsupported content encoding; dropping.")),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){var _=this.currentTrack.codecId.indexOf("/"),y=-1===_?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,_);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){this.currentTrack.codecId===C.CODEC_STRING_MAP.avc?(this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===C.CODEC_STRING_MAP.hevc?(this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):y===C.CODEC_STRING_MAP.vp8?this.currentTrack.info.codec="vp8":y===C.CODEC_STRING_MAP.vp9?this.currentTrack.info.codec="vp9":y===C.CODEC_STRING_MAP.av1&&(this.currentTrack.info.codec="av1");var S=this.currentTrack,w=new(0,I.InputVideoTrack)(this.input,new R(S));this.currentTrack.inputTrack=w,this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type&&-1!==this.currentTrack.info.numberOfChannels&&-1!==this.currentTrack.info.sampleRate){y===C.CODEC_STRING_MAP.aac?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2")},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===C.CODEC_STRING_MAP.mp3?this.currentTrack.info.codec="mp3":y===C.CODEC_STRING_MAP.opus?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=T.OPUS_SAMPLE_RATE):y===C.CODEC_STRING_MAP.vorbis?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):y===C.CODEC_STRING_MAP.flac?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));var x=this.currentTrack,P=new(0,I.InputAudioTrack)(this.input,new U(x));this.currentTrack.inputTrack=P,this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case C.EBMLId.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.TrackType:if(!this.currentTrack)break;var A=(0,C.readUnsignedInt)(e,d);1===A?this.currentTrack.info={type:"video",width:-1,height:-1,rotation:0,codec:null,codecDescription:null,colorSpace:null,alphaMode:!1}:2===A&&(this.currentTrack.info={type:"audio",numberOfChannels:-1,sampleRate:-1,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null});break;case C.EBMLId.FlagEnabled:if(!this.currentTrack)break;(0,C.readUnsignedInt)(e,d)||(this.currentSegment.tracks.pop(),this.currentTrack=null);break;case C.EBMLId.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=(0,C.readAsciiString)(e,d);break;case C.EBMLId.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=(0,B.readBytes)(e,d);break;case C.EBMLId.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDuration=this.currentTrack.segment.timestampFactor*(0,C.readUnsignedInt)(e,d)/1e9;break;case C.EBMLId.Name:if(!this.currentTrack)break;this.currentTrack.name=(0,C.readUnicodeString)(e,d);break;case C.EBMLId.Language:if(!this.currentTrack||this.currentTrack.languageCode!==j.UNDETERMINED_LANGUAGE)break;this.currentTrack.languageCode=(0,C.readAsciiString)(e,d),(0,j.isIso639Dash2LanguageCode)(this.currentTrack.languageCode)||(this.currentTrack.languageCode=j.UNDETERMINED_LANGUAGE);break;case C.EBMLId.LanguageBCP47:if(!this.currentTrack)break;var M=(0,C.readAsciiString)(e,d).split("-")[0];M?this.currentTrack.languageCode=M:this.currentTrack.languageCode=j.UNDETERMINED_LANGUAGE;break;case C.EBMLId.Video:if((null==(F=this.currentTrack)||null==(D=F.info)?void 0:D.type)!=="video")break;this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.PixelWidth:if((null==(L=this.currentTrack)||null==(O=L.info)?void 0:O.type)!=="video")break;this.currentTrack.info.width=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.PixelHeight:if((null==(V=this.currentTrack)||null==(N=V.info)?void 0:N.type)!=="video")break;this.currentTrack.info.height=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.AlphaMode:if((null==(H=this.currentTrack)||null==(z=H.info)?void 0:z.type)!=="video")break;this.currentTrack.info.alphaMode=1===(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.Colour:if((null==(q=this.currentTrack)||null==(G=q.info)?void 0:G.type)!=="video")break;this.currentTrack.info.colorSpace={},this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.MatrixCoefficients:if((null==(K=this.currentTrack)||null==(W=K.info)?void 0:W.type)!=="video"||!this.currentTrack.info.colorSpace)break;var D,F,O,L,N,V,z,H,G,q,W,K,X,Q=(0,C.readUnsignedInt)(e,d),Z=null!=(X=j.MATRIX_COEFFICIENTS_MAP_INVERSE[Q])?X:null;this.currentTrack.info.colorSpace.matrix=Z;break;case C.EBMLId.Range:if((null==(J=this.currentTrack)||null==(Y=J.info)?void 0:Y.type)!=="video"||!this.currentTrack.info.colorSpace)break;this.currentTrack.info.colorSpace.fullRange=2===(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.TransferCharacteristics:if((null==(ee=this.currentTrack)||null==($=ee.info)?void 0:$.type)!=="video"||!this.currentTrack.info.colorSpace)break;var Y,J,$,ee,et,er=(0,C.readUnsignedInt)(e,d),en=null!=(et=j.TRANSFER_CHARACTERISTICS_MAP_INVERSE[er])?et:null;this.currentTrack.info.colorSpace.transfer=en;break;case C.EBMLId.Primaries:if((null==(ei=this.currentTrack)||null==(ea=ei.info)?void 0:ea.type)!=="video"||!this.currentTrack.info.colorSpace)break;var ea,ei,es,eo=(0,C.readUnsignedInt)(e,d),ec=null!=(es=j.COLOR_PRIMARIES_MAP_INVERSE[eo])?es:null;this.currentTrack.info.colorSpace.primaries=ec;break;case C.EBMLId.Projection:if((null==(el=this.currentTrack)||null==(eu=el.info)?void 0:eu.type)!=="video")break;this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.ProjectionPoseRoll:if((null==(ef=this.currentTrack)||null==(ed=ef.info)?void 0:ed.type)!=="video")break;var eu,el,ed,ef,eh=(0,C.readFloat)(e,d);try{this.currentTrack.info.rotation=(0,j.normalizeRotation)(-eh)}catch(e){}break;case C.EBMLId.Audio:if((null==(eg=this.currentTrack)||null==(em=eg.info)?void 0:em.type)!=="audio")break;this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.SamplingFrequency:if((null==(eb=this.currentTrack)||null==(ev=eb.info)?void 0:ev.type)!=="audio")break;this.currentTrack.info.sampleRate=(0,C.readFloat)(e,d);break;case C.EBMLId.Channels:if((null==(e_=this.currentTrack)||null==(ek=e_.info)?void 0:ek.type)!=="audio")break;this.currentTrack.info.numberOfChannels=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.BitDepth:if((null==(eS=this.currentTrack)||null==(ey=eS.info)?void 0:ey.type)!=="audio")break;this.currentTrack.info.bitDepth=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(f,d)),this.currentCueTime=null;break;case C.EBMLId.CueTime:this.currentCueTime=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.CueTrackPositions:if(null===this.currentCueTime)break;(0,j.assert)(this.currentSegment);var ep={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(ep),this.readContiguousElements(e.slice(f,d)),(-1===ep.trackId||-1===ep.clusterPosition)&&this.currentSegment.cuePoints.pop();break;case C.EBMLId.CueTrack:var em,eg,ev,eb,ek,e_,ey,eS,ew,eT=null==(ew=this.currentSegment)?void 0:ew.cuePoints[this.currentSegment.cuePoints.length-1];if(!eT)break;eT.trackId=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.CueClusterPosition:var ex,eI=null==(ex=this.currentSegment)?void 0:ex.cuePoints[this.currentSegment.cuePoints.length-1];if(!eI)break;(0,j.assert)(this.currentSegment),eI.clusterPosition=this.currentSegment.dataStartPos+(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.SimpleBlock:if(!this.currentCluster)break;var eE,ej=(0,C.readVarInt)(e);if(null===ej)break;var eP=this.getTrackDataInCluster(this.currentCluster,ej);if(!eP)break;var eC=(0,B.readI16Be)(e),eA=(0,B.readU8)(e),eB=!!(128&eA);(null==(eE=eP.track.info)?void 0:eE.type)==="audio"&&eP.track.info.codec&&(eB=!0);var eM=(0,B.readBytes)(e,d-(e.filePos-f)),eD=eP.track.decodingInstructions.length>0;eP.blocks.push({timestamp:eC,duration:0,isKeyFrame:eB,data:eM,lacing:eA>>1&3,decoded:!eD,mainAdditional:null});break;case C.EBMLId.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(f,d)),this.currentBlock=null;break;case C.EBMLId.Block:if(!this.currentCluster)break;var eF=(0,C.readVarInt)(e);if(null===eF)break;var eR=this.getTrackDataInCluster(this.currentCluster,eF);if(!eR)break;var eU=(0,B.readI16Be)(e),eO=(0,B.readU8)(e),eL=(0,B.readBytes)(e,d-(e.filePos-f)),eN=eR.track.decodingInstructions.length>0;this.currentBlock={timestamp:eU,duration:0,isKeyFrame:!0,data:eL,lacing:eO>>1&3,decoded:!eN,mainAdditional:null},eR.blocks.push(this.currentBlock);break;case C.EBMLId.BlockAdditions:this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(f,d)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case C.EBMLId.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=(0,B.readBytes)(e,d);break;case C.EBMLId.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case C.EBMLId.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.Targets:this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.TargetTypeValue:50!==(0,C.readUnsignedInt)(e,d)&&(this.currentTagTargetIsMovie=!1);break;case C.EBMLId.TagTrackUID:case C.EBMLId.TagEditionUID:case C.EBMLId.TagChapterUID:case C.EBMLId.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case C.EBMLId.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.TagName:this.currentSimpleTagName=(0,C.readUnicodeString)(e,d);break;case C.EBMLId.TagString:if(!this.currentSimpleTagName)break;var eV=(0,C.readUnicodeString)(e,d);this.processTagValue(this.currentSimpleTagName,eV);break;case C.EBMLId.TagBinary:if(!this.currentSimpleTagName)break;var ez=(0,B.readBytes)(e,d);this.processTagValue(this.currentSimpleTagName,ez);break;case C.EBMLId.AttachedFile:if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(f,d));var eH=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(null!=eH.raw||(eH.raw={}),eH.raw[this.currentAttachedFile.fileUid.toString()]=new(0,E.AttachedFile)(this.currentAttachedFile.fileData,null!=(eq=this.currentAttachedFile.fileMediaType)?eq:void 0,null!=(eW=this.currentAttachedFile.fileName)?eW:void 0,null!=(eK=this.currentAttachedFile.fileDescription)?eK:void 0)),(null==(eG=this.currentAttachedFile.fileMediaType)?void 0:eG.startsWith("image/"))&&this.currentAttachedFile.fileData){var eG,eq,eW,eK,eX,eQ,eZ=this.currentAttachedFile.fileName,eY="unknown";if(eZ){var eJ=eZ.toLowerCase();eJ.startsWith("cover.")?eY="coverFront":eJ.startsWith("back.")&&(eY="coverBack")}null!=eH.images||(eH.images=[]),eH.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:eY,name:null!=(eX=this.currentAttachedFile.fileName)?eX:void 0,description:null!=(eQ=this.currentAttachedFile.fileDescription)?eQ:void 0})}this.currentAttachedFile=null;break;case C.EBMLId.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=(0,C.readUnsignedBigInt)(e,d);break;case C.EBMLId.FileName:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=(0,C.readUnicodeString)(e,d);break;case C.EBMLId.FileMediaType:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=(0,C.readAsciiString)(e,d);break;case C.EBMLId.FileData:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=(0,B.readBytes)(e,d);break;case C.EBMLId.FileDescription:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=(0,C.readUnicodeString)(e,d);break;case C.EBMLId.ContentEncodings:if(!this.currentTrack)break;this.readContiguousElements(e.slice(f,d)),this.currentTrack.decodingInstructions.sort(function(e,r){return r.order-e.order});break;case C.EBMLId.ContentEncoding:this.currentDecodingInstruction={order:0,scope:u.Block,data:null},this.readContiguousElements(e.slice(f,d)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case C.EBMLId.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:l.Zlib,settings:null},this.readContiguousElements(e.slice(f,d));break;case C.EBMLId.ContentCompAlgo:if((null==(a=this.currentDecodingInstruction)||null==(n=a.data)?void 0:n.type)!=="decompress")break;this.currentDecodingInstruction.data.algorithm=(0,C.readUnsignedInt)(e,d);break;case C.EBMLId.ContentCompSettings:if((null==(s=this.currentDecodingInstruction)||null==(i=s.data)?void 0:i.type)!=="decompress")break;this.currentDecodingInstruction.data.settings=(0,B.readBytes)(e,d);break;case C.EBMLId.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=f+d,!0}},{key:"decodeBlockData",value:function(e,r){(0,j.assert)(e.decodingInstructions.length>0);var n=r,a=!0,i=!1,s=void 0;try{for(var o,c=e.decodingInstructions[Symbol.iterator]();!(a=(o=c.next()).done);a=!0){var u=o.value;if((0,j.assert)(u.data),"decompress"===u.data.type&&u.data.algorithm===l.HeaderStripping&&u.data.settings&&u.data.settings.length>0){var d=u.data.settings,f=new Uint8Array(d.length+n.length);f.set(d,0),f.set(n,d.length),n=f}}}catch(e){i=!0,s=e}finally{try{a||null==c.return||c.return()}finally{if(i)throw s}}return n}},{key:"processTagValue",value:function(e,r){if(null==(a=this.currentSegment)?void 0:a.metadataTags){var n=this.currentSegment.metadataTags;if(null!=n.raw||(n.raw={}),null!=(i=n.raw)[e]||(i[e]=r),"string"==typeof r)switch(e.toLowerCase()){case"title":null!=n.title||(n.title=r);break;case"description":null!=n.description||(n.description=r);break;case"artist":null!=n.artist||(n.artist=r);break;case"album":null!=n.album||(n.album=r);break;case"album_artist":null!=n.albumArtist||(n.albumArtist=r);break;case"genre":null!=n.genre||(n.genre=r);break;case"comment":null!=n.comment||(n.comment=r);break;case"lyrics":null!=n.lyrics||(n.lyrics=r);break;case"date":var a,i,s=new Date(r);Number.isNaN(s.getTime())||null!=n.date||(n.date=s);break;case"track_number":case"part_number":var o=r.split("/"),c=Number.parseInt(o[0],10),u=o[1]&&Number.parseInt(o[1],10);Number.isInteger(c)&&c>0&&(null!=n.trackNumber||(n.trackNumber=c)),u&&Number.isInteger(u)&&u>0&&(null!=n.tracksTotal||(n.tracksTotal=u));break;case"disc_number":case"disc":var l=r.split("/"),d=Number.parseInt(l[0],10),f=l[1]&&Number.parseInt(l[1],10);Number.isInteger(d)&&d>0&&(null!=n.discNumber||(n.discNumber=d)),f&&Number.isInteger(f)&&f>0&&(null!=n.discsTotal||(n.discsTotal=f))}}}}]),r}(x.Demuxer),F=function(){"use strict";function e(r){(0,p._)(this,e),this.internalTrack=r,this.packetToClusterLocation=new WeakMap}return(0,m._)(e,[{key:"getId",value:function(){return this.internalTrack.id}},{key:"getCodec",value:function(){throw Error("Not implemented on base class.")}},{key:"getInternalCodecId",value:function(){return this.internalTrack.codecId}},{key:"computeDuration",value:function(){return(0,f._)(function(){var e,r,n;return(0,y._)(this,function(a){switch(a.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(r=null==(e=a.sent())?void 0:e.timestamp)?r:0)+(null!=(n=null==e?void 0:e.duration)?n:0)]}})}).call(this)}},{key:"getName",value:function(){return this.internalTrack.name}},{key:"getLanguageCode",value:function(){return this.internalTrack.languageCode}},{key:"getFirstTimestamp",value:function(){return(0,f._)(function(){var e,r;return(0,y._)(this,function(n){switch(n.label){case 0:return[4,this.getFirstPacket({metadataOnly:!0})];case 1:return[2,null!=(r=null==(e=n.sent())?void 0:e.timestamp)?r:0]}})}).call(this)}},{key:"getTimeResolution",value:function(){return this.internalTrack.segment.timestampFactor}},{key:"getDisposition",value:function(){return this.internalTrack.disposition}},{key:"getFirstPacket",value:function(e){return(0,f._)(function(){var r;return(0,y._)(this,function(n){return r=this,[2,this.performClusterLookup(null,function(e){return e.trackData.get(r.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,e)]})}).call(this)}},{key:"intoTimescale",value:function(e){return(0,j.roundIfAlmostInteger)(e*this.internalTrack.segment.timestampFactor)}},{key:"getPacket",value:function(e,r){return(0,f._)(function(){var n,a;return(0,y._)(this,function(i){return n=this,a=this.intoTimescale(e),[2,this.performClusterLookup(null,function(e){var r=e.trackData.get(n.internalTrack.id);if(!r)return{blockIndex:-1,correctBlockFound:!1};var i=(0,j.binarySearchLessOrEqual)(r.presentationTimestamps,a,function(e){return e.timestamp});return{blockIndex:-1!==i?r.presentationTimestamps[i].blockIndex:-1,correctBlockFound:-1!==i&&a<r.endTimestamp}},a,a,r)]})}).call(this)}},{key:"getNextPacket",value:function(e,r){return(0,f._)(function(){var n,a;return(0,y._)(this,function(i){if(n=this,void 0===(a=this.packetToClusterLocation.get(e)))throw Error("Packet was not created from this track.");return[2,this.performClusterLookup(a.cluster,function(e){if(e===a.cluster){var r=e.trackData.get(n.internalTrack.id);if(a.blockIndex+1<r.blocks.length)return{blockIndex:a.blockIndex+1,correctBlockFound:!0}}else if(e.trackData.get(n.internalTrack.id))return{blockIndex:0,correctBlockFound:!0};return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,r)]})}).call(this)}},{key:"getKeyPacket",value:function(e,r){return(0,f._)(function(){var n,a;return(0,y._)(this,function(i){return n=this,a=this.intoTimescale(e),[2,this.performClusterLookup(null,function(e){var r=e.trackData.get(n.internalTrack.id);if(!r)return{blockIndex:-1,correctBlockFound:!1};var i=(0,j.findLastIndex)(r.presentationTimestamps,function(e){return r.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=a});return{blockIndex:-1!==i?r.presentationTimestamps[i].blockIndex:-1,correctBlockFound:-1!==i&&a<r.endTimestamp}},a,a,r)]})}).call(this)}},{key:"getNextKeyPacket",value:function(e,r){return(0,f._)(function(){var n,a;return(0,y._)(this,function(i){if(n=this,void 0===(a=this.packetToClusterLocation.get(e)))throw Error("Packet was not created from this track.");return[2,this.performClusterLookup(a.cluster,function(e){if(e===a.cluster){var r=e.trackData.get(n.internalTrack.id).blocks.findIndex(function(e,r){return e.isKeyFrame&&r>a.blockIndex});if(-1!==r)return{blockIndex:r,correctBlockFound:!0}}else{var i=e.trackData.get(n.internalTrack.id);if(i&&null!==i.firstKeyFrameTimestamp){var s=i.blocks.findIndex(function(e){return e.isKeyFrame});return(0,j.assert)(-1!==s),{blockIndex:s,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,r)]})}).call(this)}},{key:"fetchPacketInCluster",value:function(e,r,n){return(0,f._)(function(){var a,i,s,o,c,u,l;return(0,y._)(this,function(d){return -1===r?[2,null]:(i=e.trackData.get(this.internalTrack.id).blocks[r],(0,j.assert)(i),i.decoded||(i.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,i.data),i.decoded=!0),s=n.metadataOnly?P.PLACEHOLDER_DATA:i.data,o=i.timestamp/this.internalTrack.segment.timestampFactor,c=i.duration/this.internalTrack.segment.timestampFactor,u={},i.mainAdditional&&(null==(a=this.internalTrack.info)?void 0:a.type)==="video"&&this.internalTrack.info.alphaMode&&(u.alpha=n.metadataOnly?P.PLACEHOLDER_DATA:i.mainAdditional,u.alphaByteLength=i.mainAdditional.byteLength),l=new(0,P.EncodedPacket)(s,i.isKeyFrame?"key":"delta",o,c,e.dataStartPos+r,i.data.byteLength,u),this.packetToClusterLocation.set(l,{cluster:e,blockIndex:r}),[2,l])})}).call(this)}},{key:"performClusterLookup",value:function(e,r,n,a,i){return(0,f._)(function(){var s,o,c,u,l,d,f,h,p,m,g,b,k,_,S,w,T,x,I,E,P,A,B,M,D,F,R,U,O,L,N,V;return(0,y._)(this,function(y){switch(y.label){case 0:if(o=(s=this.internalTrack).demuxer,c=s.segment,u=null,l=null,d=-1,e){if(h=(f=r(e)).blockIndex,f.correctBlockFound)return[2,this.fetchPacketInCluster(e,h,i)];-1!==h&&(l=e,d=h)}m=-1!==(p=(0,j.binarySearchLessOrEqual)(this.internalTrack.cuePoints,n,function(e){return e.time}))?this.internalTrack.cuePoints[p]:null,b=-1!==(g=(0,j.binarySearchLessOrEqual)(this.internalTrack.clusterPositionCache,n,function(e){return e.startTimestamp}))?this.internalTrack.clusterPositionCache[g]:null,S=Math.max(null!=(k=null==m?void 0:m.clusterPosition)?k:0,null!=(_=null==b?void 0:b.elementStartPos)?_:0)||null,e?null===S||e.elementStartPos>=S?(w=e.elementEndPos,u=e):w=S:w=null!=S?S:c.clusterSeekStartPos,y.label=1;case 1:if(!(null===c.elementEndPos||w<=c.elementEndPos-C.MIN_HEADER_SIZE)||u&&(T=u.trackData.get(this.internalTrack.id))&&T.startTimestamp>a)return[3,13];if(!((x=o.reader.requestSliceRange(w,C.MIN_HEADER_SIZE,C.MAX_HEADER_SIZE))instanceof Promise))return[3,3];return[4,x];case 2:x=y.sent(),y.label=3;case 3:if(!x)return[3,13];if(I=w,!(!(E=(0,C.readElementHeader)(x))||!C.LEVEL_1_EBML_IDS.includes(E.id)&&E.id!==C.EBMLId.Void))return[3,5];return[4,(0,C.resync)(o.reader,I,C.LEVEL_1_EBML_IDS,Math.min(null!=(P=c.elementEndPos)?P:1/0,I+0xa00000))];case 4:if(A=y.sent())return w=A,[3,1];return[3,13];case 5:if(B=E.id,M=E.size,D=x.filePos,B!==C.EBMLId.Cluster)return[3,7];return[4,o.readCluster(I,c)];case 6:if(M=(u=y.sent()).elementEndPos-D,R=(F=r(u)).blockIndex,F.correctBlockFound)return[2,this.fetchPacketInCluster(u,R,i)];-1!==R&&(l=u,d=R),y.label=7;case 7:if(null!==M)return[3,9];return(0,j.assert)(B!==C.EBMLId.Cluster),[4,(0,C.searchForNextElementId)(o.reader,D,C.LEVEL_0_AND_1_EBML_IDS,c.elementEndPos)];case 8:M=y.sent().pos-D,y.label=9;case 9:if(U=D+M,null!==c.elementEndPos)return[3,12];if(!((O=o.reader.requestSliceRange(U,C.MIN_HEADER_SIZE,C.MAX_HEADER_SIZE))instanceof Promise))return[3,11];return[4,O];case 10:O=y.sent(),y.label=11;case 11:if(!O)return[3,13];if((0,C.readElementId)(O)===C.EBMLId.Segment)return c.elementEndPos=U,[3,13];y.label=12;case 12:return w=U,[3,1];case 13:if(m&&(!l||l.elementStartPos<m.clusterPosition))return L=this.internalTrack.cuePoints[p-1],(0,j.assert)(!L||L.time<m.time),V=null!=(N=null==L?void 0:L.time)?N:-1/0,[2,this.performClusterLookup(null,r,V,a,i)];if(l)return[2,this.fetchPacketInCluster(l,d,i)];return[2,null]}})}).call(this)}}]),e}(),R=function(e){"use strict";function r(e){var n;return(0,p._)(this,r),(n=(0,h._)(this,r,[e])).decoderConfigPromise=null,n.internalTrack=e,n}return(0,g._)(r,e),(0,m._)(r,[{key:"getCodec",value:function(){return this.internalTrack.info.codec}},{key:"getCodedWidth",value:function(){return this.internalTrack.info.width}},{key:"getCodedHeight",value:function(){return this.internalTrack.info.height}},{key:"getRotation",value:function(){return this.internalTrack.info.rotation}},{key:"getColorSpace",value:function(){return(0,f._)(function(){var 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s=e("@swc/helpers/cjs/_to_consumable_array.cjs"),o=function(e){var r=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");if(e.codecStrings.length>0){var n=(0,s._)(new Set(e.codecStrings.filter(Boolean)));r+='; codecs="'.concat(n.join(", "),'"')}return r}},{"@swc/helpers/cjs/_to_consumable_array.cjs":"i81N6","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],ifShX:[function(e,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"Mp3Demuxer",function(){return w});var s=e("@swc/helpers/cjs/_async_to_generator.cjs"),o=e("@swc/helpers/cjs/_call_super.cjs"),c=e("@swc/helpers/cjs/_class_call_check.cjs"),u=e("@swc/helpers/cjs/_create_class.cjs"),l=e("@swc/helpers/cjs/_inherits.cjs"),d=e("@swc/helpers/cjs/_object_spread.cjs"),f=e("@swc/helpers/cjs/_ts_generator.cjs"),h=e("../demuxer.js"),p=e("../input-track.js"),m=e("../metadata.js"),g=e("../misc.js"),b=e("../packet.js"),k=e("../../shared/mp3-misc.js"),_=e("../id3.js"),y=e("./mp3-reader.js"),S=e("../reader.js"),w=function(e){"use strict";function r(e){var n;return(0,c._)(this,r),(n=(0,o._)(this,r,[e])).metadataPromise=null,n.firstFrameHeader=null,n.loadedSamples=[],n.metadataTags=null,n.tracks=[],n.readingMutex=new(0,g.AsyncMutex),n.lastSampleLoaded=!1,n.lastLoadedPos=0,n.nextTimestampInSamples=0,n.reader=e._reader,n}return(0,l._)(r,e),(0,u._)(r,[{key:"readMetadata",value:function(){return(0,s._)(function(){var e,r;return(0,f._)(this,function(n){return e=this,[2,null!=(r=this.metadataPromise)?r:this.metadataPromise=(0,s._)(function(){return(0,f._)(this,function(e){switch(e.label){case 0:if(!(!this.firstFrameHeader&&!this.lastSampleLoaded))return[3,2];return[4,this.advanceReader()];case 1:return e.sent(),[3,0];case 2:if(!this.firstFrameHeader)throw Error("No valid MP3 frame found.");return this.tracks=[new(0,p.InputAudioTrack)(this.input,new T(this))],[2]}})}).call(e)]})}).call(this)}},{key:"advanceReader",value:function(){return(0,s._)(function(){var e,r,n,a,i,s,o,c,u;return(0,f._)(this,function(l){switch(l.label){case 0:if(0!==this.lastLoadedPos)return[3,4];l.label=1;case 1:if(!((e=this.reader.requestSlice(this.lastLoadedPos,_.ID3_V2_HEADER_SIZE))instanceof Promise))return[3,3];return[4,e];case 2:e=l.sent(),l.label=3;case 3:if(!e)return this.lastSampleLoaded=!0,[2];if(!(r=(0,_.readId3V2Header)(e)))return[3,4];return this.lastLoadedPos=e.filePos+r.size,[3,1];case 4:return[4,(0,y.readNextFrameHeader)(this.reader,this.lastLoadedPos,this.reader.fileSize)];case 5:if(!(n=l.sent()))return this.lastSampleLoaded=!0,[2];if(a=n.header,this.lastLoadedPos=n.startPos+a.totalSize-1,i=(0,k.getXingOffset)(a.mpegVersionId,a.channel),!((s=this.reader.requestSlice(n.startPos+i,4))instanceof Promise))return[3,7];return[4,s];case 6:s=l.sent(),l.label=7;case 7:if(s&&((o=(0,S.readU32Be)(s))===k.XING||o===k.INFO))return[2];return this.firstFrameHeader||(this.firstFrameHeader=a),a.sampleRate!==this.firstFrameHeader.sampleRate&&console.warn("MP3 changed sample rate mid-file: ".concat(this.firstFrameHeader.sampleRate," Hz to ").concat(a.sampleRate," Hz.")+" Might be a bug, so please report this file."),c=a.audioSamplesInFrame/this.firstFrameHeader.sampleRate,u={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:c,dataStart:n.startPos,dataSize:a.totalSize},this.loadedSamples.push(u),this.nextTimestampInSamples+=a.audioSamplesInFrame,[2]}})}).call(this)}},{key:"getMimeType",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){return[2,"audio/mpeg"]})})()}},{key:"getTracks",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),[2,this.tracks]}})}).call(this)}},{key:"computeDuration",value:function(){return(0,s._)(function(){var e;return(0,f._)(this,function(r){switch(r.label){case 0:return[4,this.readMetadata()];case 1:return r.sent(),e=this.tracks[0],(0,g.assert)(e),[2,e.computeDuration()]}})}).call(this)}},{key:"getMetadataTags",value:function(){return(0,s._)(function(){var e,r,n,a,i,s,o;return(0,f._)(this,function(c){switch(c.label){case 0:return[4,this.readingMutex.acquire()];case 1:e=c.sent(),c.label=2;case 2:return c.trys.push([2,,13,14]),[4,this.readMetadata()];case 3:if(c.sent(),this.metadataTags)return[2,this.metadataTags];this.metadataTags={},r=0,n=!1,c.label=4;case 4:if(!((a=this.reader.requestSlice(r,_.ID3_V2_HEADER_SIZE))instanceof Promise))return[3,6];return[4,a];case 5:a=c.sent(),c.label=6;case 6:if(!a||!(i=(0,_.readId3V2Header)(a)))return[3,9];if(n=!0,!((s=this.reader.requestSlice(a.filePos,i.size))instanceof Promise))return[3,8];return[4,s];case 7:s=c.sent(),c.label=8;case 8:if(!s)return[3,9];return(0,_.parseId3V2Tag)(s,i,this.metadataTags),r=a.filePos+i.size,[3,4];case 9:if(!(!n&&null!==this.reader.fileSize&&this.reader.fileSize>=_.ID3_V1_TAG_SIZE))return[3,12];if(!((o=this.reader.requestSlice(this.reader.fileSize-_.ID3_V1_TAG_SIZE,_.ID3_V1_TAG_SIZE))instanceof Promise))return[3,11];return[4,o];case 10:o=c.sent(),c.label=11;case 11:(0,g.assert)(o),"TAG"===(0,S.readAscii)(o,3)&&(0,_.parseId3V1Tag)(o,this.metadataTags),c.label=12;case 12:return[2,this.metadataTags];case 13:return e(),[7];case 14:return[2]}})}).call(this)}}]),r}(h.Demuxer),T=function(){"use strict";function e(r){(0,c._)(this,e),this.demuxer=r}return(0,u._)(e,[{key:"getId",value:function(){return 1}},{key:"getFirstTimestamp",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){return[2,0]})})()}},{key:"getTimeResolution",value:function(){return(0,g.assert)(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}},{key:"computeDuration",value:function(){return(0,s._)(function(){var e,r,n;return(0,f._)(this,function(a){switch(a.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(r=null==(e=a.sent())?void 0:e.timestamp)?r:0)+(null!=(n=null==e?void 0:e.duration)?n:0)]}})}).call(this)}},{key:"getName",value:function(){return null}},{key:"getLanguageCode",value:function(){return g.UNDETERMINED_LANGUAGE}},{key:"getCodec",value:function(){return"mp3"}},{key:"getInternalCodecId",value:function(){return null}},{key:"getNumberOfChannels",value:function(){return(0,g.assert)(this.demuxer.firstFrameHeader),3===this.demuxer.firstFrameHeader.channel?1:2}},{key:"getSampleRate",value:function(){return(0,g.assert)(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}},{key:"getDisposition",value:function(){return(0,d._)({},m.DEFAULT_TRACK_DISPOSITION)}},{key:"getDecoderConfig",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){return(0,g.assert)(this.demuxer.firstFrameHeader),[2,{codec:"mp3",numberOfChannels:3===this.demuxer.firstFrameHeader.channel?1:2,sampleRate:this.demuxer.firstFrameHeader.sampleRate}]})}).call(this)}},{key:"getPacketAtIndex",value:function(e,r){return(0,s._)(function(){var n,a,i;return(0,f._)(this,function(s){switch(s.label){case 0:if(-1===e||!(n=this.demuxer.loadedSamples[e]))return[2,null];if(!r.metadataOnly)return[3,1];return a=b.PLACEHOLDER_DATA,[3,4];case 1:if(!((i=this.demuxer.reader.requestSlice(n.dataStart,n.dataSize))instanceof Promise))return[3,3];return[4,i];case 2:i=s.sent(),s.label=3;case 3:if(!i)return[2,null];a=(0,S.readBytes)(i,n.dataSize),s.label=4;case 4:return[2,new(0,b.EncodedPacket)(a,"key",n.timestamp,n.duration,e,n.dataSize)]}})}).call(this)}},{key:"getFirstPacket",value:function(e){return this.getPacketAtIndex(0,e)}},{key:"getNextPacket",value:function(e,r){return(0,s._)(function(){var n,a,i;return(0,f._)(this,function(s){switch(s.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:n=s.sent(),s.label=2;case 2:if(s.trys.push([2,,6,7]),-1===(a=(0,g.binarySearchExact)(this.demuxer.loadedSamples,e.timestamp,function(e){return e.timestamp})))throw Error("Packet was not created from this track.");i=a+1,s.label=3;case 3:if(!(i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded))return[3,5];return[4,this.demuxer.advanceReader()];case 4:return s.sent(),[3,3];case 5:return[2,this.getPacketAtIndex(i,r)];case 6:return n(),[7];case 7:return[2]}})}).call(this)}},{key:"getPacket",value:function(e,r){return(0,s._)(function(){var n,a;return(0,f._)(this,function(i){switch(i.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:n=i.sent(),i.label=2;case 2:i.trys.push([2,,6,7]),i.label=3;case 3:if(-1===(a=(0,g.binarySearchLessOrEqual)(this.demuxer.loadedSamples,e,function(e){return e.timestamp}))&&this.demuxer.loadedSamples.length>0)return[2,null];if(this.demuxer.lastSampleLoaded||a>=0&&a+1<this.demuxer.loadedSamples.length)return[2,this.getPacketAtIndex(a,r)];return[4,this.demuxer.advanceReader()];case 4:return i.sent(),[3,3];case 5:return[3,7];case 6:return n(),[7];case 7:return[2]}})}).call(this)}},{key:"getKeyPacket",value:function(e,r){return this.getPacket(e,r)}},{key:"getNextKeyPacket",value:function(e,r){return this.getNextPacket(e,r)}}]),e}()},{"@swc/helpers/cjs/_async_to_generator.cjs":"cZn0e","@swc/helpers/cjs/_call_super.cjs":"clpdF","@swc/helpers/cjs/_class_call_check.cjs":"4Uf9M","@swc/helpers/cjs/_create_class.cjs":"igUuK","@swc/helpers/cjs/_inherits.cjs":"jtSwf","@swc/helpers/cjs/_object_spread.cjs":"kyoEj","@swc/helpers/cjs/_ts_generator.cjs":"eltGh","../demuxer.js":"d4thC","../input-track.js":"b22CJ","../metadata.js":"eSjom","../misc.js":"j7iGm","../packet.js":"QfqGG","../../shared/mp3-misc.js":"gcure","../id3.js":"42Y2c","./mp3-reader.js":"gFWvE","../reader.js":"8KRfO","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],gcure:[function(e,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"FRAME_HEADER_SIZE",function(){return s}),i.export(n,"SAMPLING_RATES",function(){return o}),i.export(n,"KILOBIT_RATES",function(){return c}),i.export(n,"XING",function(){return u}),i.export(n,"INFO",function(){return l}),i.export(n,"computeMp3FrameSize",function(){return d}),i.export(n,"getXingOffset",function(){return f}),i.export(n,"readFrameHeader",function(){return h}),i.export(n,"encodeSynchsafe",function(){return p}),i.export(n,"decodeSynchsafe",function(){return m});var s=4,o=[44100,48e3,32e3],c=[-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],u=0x58696e67,l=0x496e666f,d=function(e,r,n,a,i){return 0===r?0:1===r?Math.floor(144*n/(a<<e))+i:2===r?Math.floor(144*n/a)+i:(Math.floor(12*n/a)+i)*4},f=function(e,r){return 3===e?3===r?21:36:3===r?13:21},h=function(e,r){var n,a=e>>>24,i=e>>>16&255,s=e>>>8&255,u=255&e;if(255!==a&&255!==i&&255!==s&&255!==u)return{header:null,bytesAdvanced:4};if(255!==a||(224&i)!=224)return{header:null,bytesAdvanced:1};var l=0,f=0;16&i?l=8&i?0:1:(l=1,f=1);var h=i>>3&3,p=i>>1&3,m=(s>>2&3)%3,g=c[64*l+16*p+(s>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};var b=1e3*g,k=o[m]>>l+f,_=d(l,p,b,k,s>>1&1);return null!==r&&r<_?{header:null,bytesAdvanced:1}:(n=3===h?3===p?384:1152:3===p?384:2===p?1152:576,{header:{totalSize:_,mpegVersionId:h,layer:p,bitrate:b,frequencyIndex:m,sampleRate:k,channel:u>>6&3,modeExtension:u>>4&3,copyright:u>>3&1,original:u>>2&1,emphasis:3&u,audioSamplesInFrame:n},bytesAdvanced:1})},p=function(e){for(var r=127,n=0,a=e;(0x7fffffff^r)!=0;)n=(a&~r)<<1|a&r,r=(r+1<<8)-1,a=n;return n},m=function(e){for(var r=0x7f000000,n=0;0!==r;)n>>=1,n|=e&r,r>>=8;return n}},{"@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],"42Y2c":[function(e,r,n,a){var i,s,o,c,u=e("@parcel/transformer-js/src/esmodule-helpers.js");u.defineInteropFlag(n),u.export(n,"Id3V2HeaderFlags",function(){return o}),u.export(n,"Id3V2TextEncoding",function(){return c}),u.export(n,"ID3_V1_TAG_SIZE",function(){return m}),u.export(n,"ID3_V2_HEADER_SIZE",function(){return g}),u.export(n,"ID3_V1_GENRES",function(){return b}),u.export(n,"parseId3V1Tag",function(){return k}),u.export(n,"readId3V1String",function(){return _}),u.export(n,"readId3V2Header",function(){return y}),u.export(n,"parseId3V2Tag",function(){return S}),u.export(n,"Id3V2Reader",function(){return w}),u.export(n,"Id3V2Writer",function(){return T});var l=e("@swc/helpers/cjs/_class_call_check.cjs"),d=e("@swc/helpers/cjs/_create_class.cjs"),f=e("../shared/mp3-misc.js"),h=e("./misc.js"),p=e("./reader.js");(i=o||(o={}))[i.Unsynchronisation=128]="Unsynchronisation",i[i.ExtendedHeader=64]="ExtendedHeader",i[i.ExperimentalIndicator=32]="ExperimentalIndicator",i[i.Footer=16]="Footer",(s=c||(c={}))[s.ISO_8859_1=0]="ISO_8859_1",s[s.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",s[s.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",s[s.UTF_8=3]="UTF_8";var m=128,g=10,b=["Blues","Classic rock","Country","Dance","Disco","Funk","Grunge","Hip-hop","Jazz","Metal","New age","Oldies","Other","Pop","Rhythm and blues","Rap","Reggae","Rock","Techno","Industrial","Alternative","Ska","Death metal","Pranks","Soundtrack","Euro-techno","Ambient","Trip-hop","Vocal","Jazz & funk","Fusion","Trance","Classical","Instrumental","Acid","House","Game","Sound clip","Gospel","Noise","Alternative rock","Bass","Soul","Punk","Space","Meditative","Instrumental pop","Instrumental rock","Ethnic","Gothic","Darkwave","Techno-industrial","Electronic","Pop-folk","Eurodance","Dream","Southern rock","Comedy","Cult","Gangsta","Top 40","Christian rap","Pop/funk","Jungle music","Native US","Cabaret","New wave","Psychedelic","Rave","Showtunes","Trailer","Lo-fi","Tribal","Acid punk","Acid jazz","Polka","Retro","Musical","Rock 'n' roll","Hard rock","Folk","Folk rock","National folk","Swing","Fast fusion","Bebop","Latin","Revival","Celtic","Bluegrass","Avantgarde","Gothic rock","Progressive rock","Psychedelic rock","Symphonic rock","Slow rock","Big band","Chorus","Easy listening","Acoustic","Humour","Speech","Chanson","Opera","Chamber music","Sonata","Symphony","Booty bass","Primus","Porn groove","Satire","Slow jam","Club","Tango","Samba","Folklore","Ballad","Power ballad","Rhythmic Soul","Freestyle","Duet","Punk rock","Drum solo","A cappella","Euro-house","Dance hall","Goa music","Drum & bass","Club-house","Hardcore techno","Terror","Indie","Britpop","Negerpunk","Polsk punk","Beat","Christian gangsta rap","Heavy metal","Black metal","Crossover","Contemporary Christian","Christian rock","Merengue","Salsa","Thrash metal","Anime","Jpop","Synthpop","Christmas","Art rock","Baroque","Bhangra","Big beat","Breakbeat","Chillout","Downtempo","Dub","EBM","Eclectic","Electro","Electroclash","Emo","Experimental","Garage","Global","IDM","Illbient","Industro-Goth","Jam Band","Krautrock","Leftfield","Lounge","Math rock","New romantic","Nu-breakz","Post-punk","Post-rock","Psytrance","Shoegaze","Space rock","Trop rock","World music","Neoclassical","Audiobook","Audio theatre","Neue Deutsche Welle","Podcast","Indie rock","G-Funk","Dubstep","Garage rock","Psybient"],k=function(e,r){var n=e.filePos;null!=r.raw||(r.raw={}),null!=(u=r.raw).TAG||(u.TAG=(0,p.readBytes)(e,m-3)),e.filePos=n;var a=_(e,30);a&&(null!=r.title||(r.title=a));var i=_(e,30);i&&(null!=r.artist||(r.artist=i));var s=_(e,30);s&&(null!=r.album||(r.album=s));var o=Number.parseInt(_(e,4),10);Number.isInteger(o)&&o>0&&(null!=r.date||(r.date=new Date(o,0,1)));var c=(0,p.readBytes)(e,30);if(0===c[28]&&0!==c[29]){var u,l,d=c[29];d>0&&(null!=r.trackNumber||(r.trackNumber=d)),e.skip(-30),l=_(e,28),e.skip(2)}else e.skip(-30),l=_(e,30);l&&(null!=r.comment||(r.comment=l));var f=(0,p.readU8)(e);f<b.length&&(null!=r.genre||(r.genre=b[f]))},_=function(e,r){for(var n=(0,p.readBytes)(e,r),a=(0,h.coalesceIndex)(n.indexOf(0),n.length),i=n.subarray(0,a),s="",o=0;o<i.length;o++)s+=String.fromCharCode(i[o]);return s.trimEnd()},y=function(e){var r=e.filePos,n=(0,p.readAscii)(e,3),a=(0,p.readU8)(e),i=(0,p.readU8)(e),s=(0,p.readU8)(e),o=(0,p.readU32Be)(e);return"ID3"!==n||255===a||255===i||(0x80808080&o)!=0?(e.filePos=r,null):{majorVersion:a,revision:i,flags:s,size:(0,f.decodeSynchsafe)(o)}},S=function(e,r,n){if(![2,3,4].includes(r.majorVersion))return void console.warn("Unsupported ID3v2 major version: ".concat(r.majorVersion));var a=(0,p.readBytes)(e,r.size),i=new w(r,a);if(r.flags&o.Footer&&i.removeFooter(),r.flags&o.Unsynchronisation&&3===r.majorVersion&&i.ununsynchronizeAll(),r.flags&o.ExtendedHeader){var s=i.readU32();3===r.majorVersion?i.pos+=s:i.pos+=s-4}for(;i.pos<=i.bytes.length-i.frameHeaderSize();){var c=i.readId3V2Frame();if(!c)break;var u=i.pos,l=i.pos+c.size,d=!1,f=!1,h=!1;if(3===r.majorVersion?(d=!!(64&c.flags),f=!!(128&c.flags)):4===r.majorVersion&&(d=!!(4&c.flags),f=!!(8&c.flags),h=!!(2&c.flags)||!!(r.flags&o.Unsynchronisation)),d){console.warn("Skipping encrypted ID3v2 frame ".concat(c.id)),i.pos=l;continue}if(f){console.warn("Skipping compressed ID3v2 frame ".concat(c.id)),i.pos=l;continue}switch(h&&i.ununsynchronizeRegion(i.pos,l),null!=n.raw||(n.raw={}),"T"===c.id[0]?null!=(m=n.raw)[g=c.id]||(m[g]=i.readId3V2EncodingAndText(l)):null!=(k=n.raw)[_=c.id]||(k[_]=i.readBytes(c.size)),i.pos=u,c.id){case"TIT2":case"TT2":null!=n.title||(n.title=i.readId3V2EncodingAndText(l));break;case"TIT3":case"TT3":null!=n.description||(n.description=i.readId3V2EncodingAndText(l));break;case"TPE1":case"TP1":null!=n.artist||(n.artist=i.readId3V2EncodingAndText(l));break;case"TALB":case"TAL":null!=n.album||(n.album=i.readId3V2EncodingAndText(l));break;case"TPE2":case"TP2":null!=n.albumArtist||(n.albumArtist=i.readId3V2EncodingAndText(l));break;case"TRCK":case"TRK":var m,g,k,_,y=i.readId3V2EncodingAndText(l).split("/"),S=Number.parseInt(y[0],10),T=y[1]&&Number.parseInt(y[1],10);Number.isInteger(S)&&S>0&&(null!=n.trackNumber||(n.trackNumber=S)),T&&Number.isInteger(T)&&T>0&&(null!=n.tracksTotal||(n.tracksTotal=T));break;case"TPOS":case"TPA":var x=i.readId3V2EncodingAndText(l).split("/"),I=Number.parseInt(x[0],10),E=x[1]&&Number.parseInt(x[1],10);Number.isInteger(I)&&I>0&&(null!=n.discNumber||(n.discNumber=I)),E&&Number.isInteger(E)&&E>0&&(null!=n.discsTotal||(n.discsTotal=E));break;case"TCON":case"TCO":var j=i.readId3V2EncodingAndText(l),P=/^\((\d+)\)/.exec(j);if(P){var C=Number.parseInt(P[1]);if(void 0!==b[C]){null!=n.genre||(n.genre=b[C]);break}}if(P=/^\d+$/.exec(j)){var A=Number.parseInt(P[0]);if(void 0!==b[A]){null!=n.genre||(n.genre=b[A]);break}}null!=n.genre||(n.genre=j);break;case"TDRC":case"TDAT":var B=new Date(i.readId3V2EncodingAndText(l));Number.isNaN(B.getTime())||null!=n.date||(n.date=B);break;case"TYER":case"TYE":var M=Number.parseInt(i.readId3V2EncodingAndText(l),10);Number.isInteger(M)&&(null!=n.date||(n.date=new Date(M,0,1)));break;case"USLT":case"ULT":var D=i.readU8();i.pos+=3,i.readId3V2Text(D,l),null!=n.lyrics||(n.lyrics=i.readId3V2Text(D,l));break;case"COMM":case"COM":var F=i.readU8();i.pos+=3,i.readId3V2Text(F,l),null!=n.comment||(n.comment=i.readId3V2Text(F,l));break;case"APIC":case"PIC":var R=i.readId3V2TextEncoding(),U=void 0;if(2===r.majorVersion){var O=i.readAscii(3);U="PNG"===O?"image/png":"JPG"===O?"image/jpeg":"image/*"}else U=i.readId3V2Text(R,l);var L=i.readU8(),N=i.readId3V2Text(R,l).trimEnd(),V=l-i.pos;if(V>=0){var z=i.readBytes(V);n.images||(n.images=[]),n.images.push({data:z,mimeType:U,kind:3===L?"coverFront":4===L?"coverBack":"unknown",description:N})}break;default:i.pos+=c.size}i.pos=l}},w=function(){"use strict";function e(r,n){(0,l._)(this,e),this.header=r,this.bytes=n,this.pos=0,this.view=new DataView(n.buffer,n.byteOffset,n.byteLength)}return(0,d._)(e,[{key:"frameHeaderSize",value:function(){return 2===this.header.majorVersion?6:10}},{key:"ununsynchronizeAll",value:function(){for(var e=[],r=0;r<this.bytes.length;r++){var n=this.bytes[r];e.push(n),255===n&&r!==this.bytes.length-1&&0===this.bytes[r]&&r++}this.bytes=new Uint8Array(e),this.view=new DataView(this.bytes.buffer)}},{key:"ununsynchronizeRegion",value:function(e,r){for(var n=[],a=e;a<r;a++){var i=this.bytes[a];n.push(i),255===i&&a!==r-1&&0===this.bytes[a+1]&&a++}var s=this.bytes.subarray(0,e),o=this.bytes.subarray(r);this.bytes=new Uint8Array(s.length+n.length+o.length),this.bytes.set(s,0),this.bytes.set(n,s.length),this.bytes.set(o,s.length+n.length),this.view=new DataView(this.bytes.buffer)}},{key:"removeFooter",value:function(){this.bytes=this.bytes.subarray(0,this.bytes.length-g),this.view=new DataView(this.bytes.buffer)}},{key:"readBytes",value:function(e){var r=this.bytes.subarray(this.pos,this.pos+e);return this.pos+=e,r}},{key:"readU8",value:function(){var e=this.view.getUint8(this.pos);return this.pos+=1,e}},{key:"readU16",value:function(){var e=this.view.getUint16(this.pos,!1);return this.pos+=2,e}},{key:"readU24",value:function(){var e=this.view.getUint16(this.pos,!1),r=this.view.getUint8(this.pos+1);return this.pos+=3,256*e+r}},{key:"readU32",value:function(){var e=this.view.getUint32(this.pos,!1);return this.pos+=4,e}},{key:"readAscii",value:function(e){for(var r="",n=0;n<e;n++)r+=String.fromCharCode(this.view.getUint8(this.pos+n));return this.pos+=e,r}},{key:"readId3V2Frame",value:function(){var e=this;if(2===this.header.majorVersion){var r=this.readAscii(3);return"\0\0\0"===r?null:{id:r,size:this.readU24(),flags:0}}var n=this.readAscii(4);if("\0\0\0\0"===n)return null;var a=this.readU32(),i=4===this.header.majorVersion?(0,f.decodeSynchsafe)(a):a,s=this.readU16(),o=this.pos,c=function(r){var n=e.pos+r;if(n>e.bytes.length)return!1;if(n<=e.bytes.length-e.frameHeaderSize()){e.pos+=r;var a=e.readAscii(4);if("\0\0\0\0"!==a&&!/[0-9A-Z]{4}/.test(a))return!1}return!0};if(!c(i)){var u=4===this.header.majorVersion?a:(0,f.decodeSynchsafe)(a);c(u)&&(i=u)}return this.pos=o,{id:n,size:i,flags:s}}},{key:"readId3V2TextEncoding",value:function(){var e=this.readU8();if(e>3)throw Error("Unsupported text encoding: ".concat(e));return e}},{key:"readId3V2Text",value:function(e,r){var n=this.pos,a=this.readBytes(r-this.pos);switch(e){case c.ISO_8859_1:for(var i="",s=0;s<a.length;s++){var o=a[s];if(0===o){this.pos=n+s+1;break}i+=String.fromCharCode(o)}return i;case c.UTF_16_WITH_BOM:if(255===a[0]&&254===a[1]){var u=new TextDecoder("utf-16le"),l=(0,h.coalesceIndex)(a.findIndex(function(e,r){return 0===e&&0===a[r+1]&&r%2==0}),a.length);return this.pos=n+Math.min(l+2,a.length),u.decode(a.subarray(2,l))}if(254===a[0]&&255===a[1]){var d=new TextDecoder("utf-16be"),f=(0,h.coalesceIndex)(a.findIndex(function(e,r){return 0===e&&0===a[r+1]&&r%2==0}),a.length);return this.pos=n+Math.min(f+2,a.length),d.decode(a.subarray(2,f))}var p=(0,h.coalesceIndex)(a.findIndex(function(e){return 0===e}),a.length);return this.pos=n+Math.min(p+1,a.length),h.textDecoder.decode(a.subarray(0,p));case c.UTF_16_BE_NO_BOM:var m=new TextDecoder("utf-16be"),g=(0,h.coalesceIndex)(a.findIndex(function(e,r){return 0===e&&0===a[r+1]&&r%2==0}),a.length);return this.pos=n+Math.min(g+2,a.length),m.decode(a.subarray(0,g));case c.UTF_8:var b=(0,h.coalesceIndex)(a.findIndex(function(e){return 0===e}),a.length);return this.pos=n+Math.min(b+1,a.length),h.textDecoder.decode(a.subarray(0,b))}}},{key:"readId3V2EncodingAndText",value:function(e){if(this.pos>=e)return"";var r=this.readId3V2TextEncoding();return this.readId3V2Text(r,e)}}]),e}(),T=function(){"use strict";function e(r){(0,l._)(this,e),this.helper=new Uint8Array(8),this.helperView=(0,h.toDataView)(this.helper),this.writer=r}return(0,d._)(e,[{key:"writeId3V2Tag",value:function(e){var r=this.writer.getPos();this.writeAscii("ID3"),this.writeU8(4),this.writeU8(0),this.writeU8(0),this.writeSynchsafeU32(0);var n=this.writer.getPos(),a=new Set,i=!0,s=!1,o=void 0;try{for(var u,l=(0,h.keyValueIterator)(e)[Symbol.iterator]();!(i=(u=l.next()).done);i=!0){var d=u.value,f=d.key,p=d.value;switch(f){case"title":this.writeId3V2TextFrame("TIT2",p),a.add("TIT2");break;case"description":this.writeId3V2TextFrame("TIT3",p),a.add("TIT3");break;case"artist":this.writeId3V2TextFrame("TPE1",p),a.add("TPE1");break;case"album":this.writeId3V2TextFrame("TALB",p),a.add("TALB");break;case"albumArtist":this.writeId3V2TextFrame("TPE2",p),a.add("TPE2");break;case"trackNumber":var m=void 0!==e.tracksTotal?"".concat(p,"/").concat(e.tracksTotal):p.toString();this.writeId3V2TextFrame("TRCK",m),a.add("TRCK");break;case"discNumber":var g=void 0!==e.discsTotal?"".concat(p,"/").concat(e.discsTotal):p.toString();this.writeId3V2TextFrame("TPOS",g),a.add("TPOS");break;case"genre":this.writeId3V2TextFrame("TCON",p),a.add("TCON");break;case"date":this.writeId3V2TextFrame("TDRC",p.toISOString().slice(0,10)),a.add("TDRC");break;case"lyrics":this.writeId3V2LyricsFrame(p),a.add("USLT");break;case"comment":this.writeId3V2CommentFrame(p),a.add("COMM");break;case"images":var b={coverFront:3,coverBack:4,unknown:0},k=!0,_=!1,y=void 0;try{for(var S,w=p[Symbol.iterator]();!(k=(S=w.next()).done);k=!0){var T,x,I=S.value,E=null!=(T=b[I.kind])?T:0,j=null!=(x=I.description)?x:"";this.writeId3V2ApicFrame(I.mimeType,E,j,I.data)}}catch(e){_=!0,y=e}finally{try{k||null==w.return||w.return()}finally{if(_)throw y}}break;case"tracksTotal":case"discsTotal":case"raw":break;default:(0,h.assertNever)(f)}}}catch(e){s=!0,o=e}finally{try{i||null==l.return||l.return()}finally{if(s)throw o}}if(e.raw)for(var P in e.raw){var C=e.raw[P];if(!(null==C||4!==P.length||a.has(P))){var A=void 0;if("string"==typeof C){var B=h.textEncoder.encode(C);(A=new Uint8Array(B.byteLength+2))[0]=c.UTF_8,A.set(B,1)}else{if(!(C instanceof Uint8Array))continue;A=C}this.writeAscii(P),this.writeSynchsafeU32(A.byteLength),this.writeU16(0),this.writer.write(A)}}var M=this.writer.getPos(),D=M-n;return this.writer.seek(r+6),this.writeSynchsafeU32(D),this.writer.seek(M),D+10}},{key:"writeU8",value:function(e){this.helper[0]=e,this.writer.write(this.helper.subarray(0,1))}},{key:"writeU16",value:function(e){this.helperView.setUint16(0,e,!1),this.writer.write(this.helper.subarray(0,2))}},{key:"writeU32",value:function(e){this.helperView.setUint32(0,e,!1),this.writer.write(this.helper.subarray(0,4))}},{key:"writeAscii",value:function(e){for(var r=0;r<e.length;r++)this.helper[r]=e.charCodeAt(r);this.writer.write(this.helper.subarray(0,e.length))}},{key:"writeSynchsafeU32",value:function(e){this.writeU32((0,f.encodeSynchsafe)(e))}},{key:"writeIsoString",value:function(e){for(var r=new Uint8Array(e.length+1),n=0;n<e.length;n++)r[n]=e.charCodeAt(n);r[e.length]=0,this.writer.write(r)}},{key:"writeUtf8String",value:function(e){var r=h.textEncoder.encode(e);this.writer.write(r),this.writeU8(0)}},{key:"writeId3V2TextFrame",value:function(e,r){var n=(0,h.isIso88591Compatible)(r),a=n?r.length:h.textEncoder.encode(r).byteLength;this.writeAscii(e),this.writeSynchsafeU32(1+a+1),this.writeU16(0),this.writeU8(n?c.ISO_8859_1:c.UTF_8),n?this.writeIsoString(r):this.writeUtf8String(r)}},{key:"writeId3V2LyricsFrame",value:function(e){var r=(0,h.isIso88591Compatible)(e),n=5+e.length+1;this.writeAscii("USLT"),this.writeSynchsafeU32(n),this.writeU16(0),this.writeU8(r?c.ISO_8859_1:c.UTF_8),this.writeAscii("und"),r?(this.writeIsoString(""),this.writeIsoString(e)):(this.writeUtf8String(""),this.writeUtf8String(e))}},{key:"writeId3V2CommentFrame",value:function(e){var r=(0,h.isIso88591Compatible)(e),n=r?e.length:h.textEncoder.encode(e).byteLength;this.writeAscii("COMM"),this.writeSynchsafeU32(5+n+1),this.writeU16(0),this.writeU8(r?c.ISO_8859_1:c.UTF_8),this.writeU8(117),this.writeU8(110),this.writeU8(100),r?(this.writeIsoString(""),this.writeIsoString(e)):(this.writeUtf8String(""),this.writeUtf8String(e))}},{key:"writeId3V2ApicFrame",value:function(e,r,n,a){var i=(0,h.isIso88591Compatible)(e)&&(0,h.isIso88591Compatible)(n),s=i?n.length:h.textEncoder.encode(n).byteLength,o=1+e.length+1+1+s+1+a.byteLength;this.writeAscii("APIC"),this.writeSynchsafeU32(o),this.writeU16(0),this.writeU8(i?c.ISO_8859_1:c.UTF_8),i?this.writeIsoString(e):this.writeUtf8String(e),this.writeU8(r),i?this.writeIsoString(n):this.writeUtf8String(n),this.writer.write(a)}}]),e}()},{"@swc/helpers/cjs/_class_call_check.cjs":"4Uf9M","@swc/helpers/cjs/_create_class.cjs":"igUuK","../shared/mp3-misc.js":"gcure","./misc.js":"j7iGm","./reader.js":"8KRfO","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],gFWvE:[function(e,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"readNextFrameHeader",function(){return l});var s=e("@swc/helpers/cjs/_async_to_generator.cjs"),o=e("@swc/helpers/cjs/_ts_generator.cjs"),c=e("../../shared/mp3-misc.js"),u=e("../reader.js"),l=function(e,r,n){return(0,s._)(function(){var a,i,s,l;return(0,o._)(this,function(o){switch(o.label){case 0:a=r,o.label=1;case 1:if(!(null===n||a<n))return[3,4];if(!((i=e.requestSlice(a,c.FRAME_HEADER_SIZE))instanceof Promise))return[3,3];return[4,i];case 2:i=o.sent(),o.label=3;case 3:if(!i)return[3,4];if(s=(0,u.readU32Be)(i),(l=(0,c.readFrameHeader)(s,null!==e.fileSize?e.fileSize-a:null)).header)return[2,{header:l.header,startPos:a}];return a+=l.bytesAdvanced,[3,1];case 4:return[2,null]}})})()}},{"@swc/helpers/cjs/_async_to_generator.cjs":"cZn0e","@swc/helpers/cjs/_ts_generator.cjs":"eltGh","../../shared/mp3-misc.js":"gcure","../reader.js":"8KRfO","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],hRJRs:[function(e,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"OggDemuxer",function(){return x});var s=e("@swc/helpers/cjs/_async_to_generator.cjs"),o=e("@swc/helpers/cjs/_call_super.cjs"),c=e("@swc/helpers/cjs/_class_call_check.cjs"),u=e("@swc/helpers/cjs/_create_class.cjs"),l=e("@swc/helpers/cjs/_inherits.cjs"),d=e("@swc/helpers/cjs/_object_spread.cjs"),f=e("@swc/helpers/cjs/_to_consumable_array.cjs"),h=e("@swc/helpers/cjs/_ts_generator.cjs"),p=e("../codec.js"),m=e("../codec-data.js"),g=e("../demuxer.js"),b=e("../input-track.js"),k=e("../metadata.js"),_=e("../misc.js"),y=e("../packet.js"),S=e("../reader.js"),w=e("./ogg-misc.js"),T=e("./ogg-reader.js"),x=function(e){"use strict";function r(e){var n;return(0,c._)(this,r),(n=(0,o._)(this,r,[e])).metadataPromise=null,n.bitstreams=[],n.tracks=[],n.metadataTags={},n.reader=e._reader,n}return(0,l._)(r,e),(0,u._)(r,[{key:"readMetadata",value:function(){return(0,s._)(function(){var e,r;return(0,h._)(this,function(n){return e=this,[2,null!=(r=this.metadataPromise)?r:this.metadataPromise=(0,s._)(function(){var e,r,n,a,i,s,o,c,u,l,d;return(0,h._)(this,function(f){switch(f.label){case 0:e=0,f.label=1;case 1:if(!((r=this.reader.requestSliceRange(e,T.MIN_PAGE_HEADER_SIZE,T.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,3];return[4,r];case 2:r=f.sent(),f.label=3;case 3:if(!r||!(n=(0,T.readPageHeader)(r))||!(2&n.headerType))return[3,4];return this.bitstreams.push({serialNumber:n.serialNumber,bosPage:n,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=n.headerStartPos+n.totalSize,[3,1];case 4:a=!0,i=!1,s=void 0,f.label=5;case 5:f.trys.push([5,14,15,16]),o=this.bitstreams[Symbol.iterator](),f.label=6;case 6:if(a=(c=o.next()).done)return[3,13];return u=c.value,[4,this.readPacket(u.bosPage,0)];case 7:if(!(l=f.sent()))return[3,12];if(!(l.data.byteLength>=7&&1===l.data[0]&&118===l.data[1]&&111===l.data[2]&&114===l.data[3]&&98===l.data[4]&&105===l.data[5]&&115===l.data[6]))return[3,9];return[4,this.readVorbisMetadata(l,u)];case 8:return f.sent(),[3,11];case 9:if(!(l.data.byteLength>=8&&79===l.data[0]&&112===l.data[1]&&117===l.data[2]&&115===l.data[3]&&72===l.data[4]&&101===l.data[5]&&97===l.data[6]&&100===l.data[7]))return[3,11];return[4,this.readOpusMetadata(l,u)];case 10:f.sent(),f.label=11;case 11:null!==u.codecInfo.codec&&this.tracks.push(new(0,b.InputAudioTrack)(this.input,new I(u,this))),f.label=12;case 12:return a=!0,[3,6];case 13:return[3,16];case 14:return d=f.sent(),i=!0,s=d,[3,16];case 15:try{a||null==o.return||o.return()}finally{if(i)throw s}return[7];case 16:return[2]}})}).call(e)]})}).call(this)}},{key:"readVorbisMetadata",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o,c,u,l;return(0,h._)(this,function(d){switch(d.label){case 0:return[4,this.findNextPacketStart(e)];case 1:case 3:if(!(n=d.sent()))return[2];return[4,this.readPacket(n.startPage,n.startSegmentIndex)];case 2:if(!(a=d.sent()))return[2];return[4,this.findNextPacketStart(a)];case 4:if(!(i=d.sent())||3!==a.data[0]||5!==i.data[0])return[2];return s=[],(o=function(e){for(;s.push(Math.min(255,e)),!(e<255);)e-=255})(e.data.length),o(a.data.length),(c=new Uint8Array(1+s.length+e.data.length+a.data.length+i.data.length))[0]=2,c.set(s,1),c.set(e.data,1+s.length),c.set(a.data,1+s.length+e.data.length),c.set(i.data,1+s.length+e.data.length+a.data.length),r.codecInfo.codec="vorbis",r.description=c,r.lastMetadataPacket=i,r.numberOfChannels=(u=(0,_.toDataView)(e.data)).getUint8(11),r.sampleRate=u.getUint32(12,!0),l=u.getUint8(28),r.codecInfo.vorbisInfo={blocksizes:[1<<(15&l),1<<(l>>4)],modeBlockflags:(0,m.parseModesFromVorbisSetupPacket)(i.data).modeBlockflags},(0,m.readVorbisComments)(a.data.subarray(7),this.metadataTags),[2]}})}).call(this)}},{key:"readOpusMetadata",value:function(e,r){return(0,s._)(function(){var n,a,i;return(0,h._)(this,function(s){switch(s.label){case 0:return[4,this.findNextPacketStart(e)];case 1:if(!(n=s.sent()))return[2];return[4,this.readPacket(n.startPage,n.startSegmentIndex)];case 2:if(!(a=s.sent()))return[2];return r.codecInfo.codec="opus",r.description=e.data,r.lastMetadataPacket=a,r.numberOfChannels=(i=(0,m.parseOpusIdentificationHeader)(e.data)).outputChannelCount,r.sampleRate=p.OPUS_SAMPLE_RATE,r.codecInfo.opusInfo={preSkip:i.preSkip},(0,m.readVorbisComments)(a.data.subarray(8),this.metadataTags),[2]}})}).call(this)}},{key:"readPacket",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o,c,u,l,d,f,p,m,g,b,k,y;return(0,h._)(this,function(h){switch(h.label){case 0:for((0,_.assert)(r<e.lacingValues.length),n=0,a=0;a<r;a++)n+=e.lacingValues[a];i=e,s=n,o=r,c=[],h.label=1;case 1:if(!((u=this.reader.requestSlice(i.dataStartPos,i.dataSize))instanceof Promise))return[3,3];return[4,u];case 2:u=h.sent(),h.label=3;case 3:for((0,_.assert)(u),l=(0,S.readBytes)(u,i.dataSize);;){if(o===i.lacingValues.length){c.push(l.subarray(n,s));break}if(d=i.lacingValues[o],s+=d,d<255)return c.push(l.subarray(n,s)),[3,8];o++}f=i.headerStartPos+i.totalSize,h.label=4;case 4:if(!((p=this.reader.requestSliceRange(f,T.MIN_PAGE_HEADER_SIZE,T.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,6];return[4,p];case 5:p=h.sent(),h.label=6;case 6:if(!p||!(m=(0,T.readPageHeader)(p)))return[2,null];if((i=m).serialNumber===e.serialNumber)return[3,7];return f=i.headerStartPos+i.totalSize,[3,4];case 7:return n=0,s=0,o=0,[3,1];case 8:for(k=0,g=new Uint8Array(c.reduce(function(e,r){return e+r.length},0)),b=0;k<c.length;k++)y=c[k],g.set(y,b),b+=y.length;return[2,{data:g,endPage:i,endSegmentIndex:o}]}})}).call(this)}},{key:"findNextPacketStart",value:function(e){return(0,s._)(function(){var r,n,a;return(0,h._)(this,function(i){switch(i.label){case 0:if(e.endSegmentIndex<e.endPage.lacingValues.length-1)return[2,{startPage:e.endPage,startSegmentIndex:e.endSegmentIndex+1}];if(4&e.endPage.headerType)return[2,null];r=e.endPage.headerStartPos+e.endPage.totalSize,i.label=1;case 1:if(!((n=this.reader.requestSliceRange(r,T.MIN_PAGE_HEADER_SIZE,T.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,3];return[4,n];case 2:n=i.sent(),i.label=3;case 3:if(!n||!(a=(0,T.readPageHeader)(n)))return[2,null];if(a.serialNumber===e.endPage.serialNumber)return[2,{startPage:a,startSegmentIndex:0}];return r=a.headerStartPos+a.totalSize,[3,1];case 4:return[2]}})}).call(this)}},{key:"getMimeType",value:function(){return(0,s._)(function(){var e;return(0,h._)(this,function(r){switch(r.label){case 0:return[4,this.readMetadata()];case 1:return r.sent(),[4,Promise.all(this.tracks.map(function(e){return e.getCodecParameterString()}))];case 2:return e=r.sent(),[2,(0,w.buildOggMimeType)({codecStrings:e.filter(Boolean)})]}})}).call(this)}},{key:"getTracks",value:function(){return(0,s._)(function(){return(0,h._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),[2,this.tracks]}})}).call(this)}},{key:"computeDuration",value:function(){return(0,s._)(function(){var e,r;return(0,h._)(this,function(n){switch(n.label){case 0:return[4,this.getTracks()];case 1:return[4,Promise.all(n.sent().map(function(e){return e.computeDuration()}))];case 2:return r=n.sent(),[2,(e=Math).max.apply(e,[0].concat((0,f._)(r)))]}})}).call(this)}},{key:"getMetadataTags",value:function(){return(0,s._)(function(){return(0,h._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),[2,this.metadataTags]}})}).call(this)}}]),r}(g.Demuxer),I=function(){"use strict";function e(r,n){(0,c._)(this,e),this.bitstream=r,this.demuxer=n,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new(0,_.AsyncMutex),this.internalSampleRate="opus"===r.codecInfo.codec?p.OPUS_SAMPLE_RATE:r.sampleRate}return(0,u._)(e,[{key:"getId",value:function(){return this.bitstream.serialNumber}},{key:"getNumberOfChannels",value:function(){return this.bitstream.numberOfChannels}},{key:"getSampleRate",value:function(){return this.bitstream.sampleRate}},{key:"getTimeResolution",value:function(){return this.bitstream.sampleRate}},{key:"getCodec",value:function(){return this.bitstream.codecInfo.codec}},{key:"getInternalCodecId",value:function(){return null}},{key:"getDecoderConfig",value:function(){return(0,s._)(function(){var e;return(0,h._)(this,function(r){return(0,_.assert)(this.bitstream.codecInfo.codec),[2,{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:null!=(e=this.bitstream.description)?e:void 0}]})}).call(this)}},{key:"getName",value:function(){return null}},{key:"getLanguageCode",value:function(){return _.UNDETERMINED_LANGUAGE}},{key:"getDisposition",value:function(){return(0,d._)({},k.DEFAULT_TRACK_DISPOSITION)}},{key:"getFirstTimestamp",value:function(){return(0,s._)(function(){return(0,h._)(this,function(e){return[2,0]})})()}},{key:"computeDuration",value:function(){return(0,s._)(function(){var e,r,n;return(0,h._)(this,function(a){switch(a.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(r=null==(e=a.sent())?void 0:e.timestamp)?r:0)+(null!=(n=null==e?void 0:e.duration)?n:0)]}})}).call(this)}},{key:"granulePositionToTimestampInSamples",value:function(e){return"opus"===this.bitstream.codecInfo.codec?((0,_.assert)(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}},{key:"createEncodedPacketFromOggPacket",value:function(e,r,n){if(!e)return null;var a=(0,w.extractSampleMetadata)(e.data,this.bitstream.codecInfo,r.vorbisLastBlocksize),i=a.durationInSamples,s=a.vorbisBlockSize,o=new(0,y.EncodedPacket)(n.metadataOnly?y.PLACEHOLDER_DATA:e.data,"key",Math.max(0,r.timestampInSamples)/this.internalSampleRate,i/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(o,{packet:e,timestampInSamples:r.timestampInSamples,durationInSamples:i,vorbisLastBlockSize:r.vorbisLastBlocksize,vorbisBlockSize:s}),o}},{key:"getFirstPacket",value:function(e){return(0,s._)(function(){var r,n,a;return(0,h._)(this,function(i){switch(i.label){case 0:return(0,_.assert)(this.bitstream.lastMetadataPacket),[4,this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket)];case 1:if(!(r=i.sent()))return[2,null];return n=0,"opus"===this.bitstream.codecInfo.codec&&((0,_.assert)(this.bitstream.codecInfo.opusInfo),n-=this.bitstream.codecInfo.opusInfo.preSkip),[4,this.demuxer.readPacket(r.startPage,r.startSegmentIndex)];case 2:return a=i.sent(),[2,this.createEncodedPacketFromOggPacket(a,{timestampInSamples:n,vorbisLastBlocksize:null},e)]}})}).call(this)}},{key:"getNextPacket",value:function(e,r){return(0,s._)(function(){var n,a,i,s;return(0,h._)(this,function(o){switch(o.label){case 0:if(!(n=this.encodedPacketToMetadata.get(e)))throw Error("Packet was not created from this track.");return[4,this.demuxer.findNextPacketStart(n.packet)];case 1:if(!(a=o.sent()))return[2,null];return i=n.timestampInSamples+n.durationInSamples,[4,this.demuxer.readPacket(a.startPage,a.startSegmentIndex)];case 2:return s=o.sent(),[2,this.createEncodedPacketFromOggPacket(s,{timestampInSamples:i,vorbisLastBlocksize:n.vorbisBlockSize},r)]}})}).call(this)}},{key:"getPacket",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o,c,u,l,d,f,p,m,g,b,k,x,I,P,C,A,B,M,D,F,R,U,O,L,N,V,z,H,G,q,W,K,X,Q,Z,Y,J,$,ee,et,er;return(0,h._)(this,function(h){switch(h.label){case 0:if(null===this.demuxer.reader.fileSize)return[2,this.getPacketSequential(e,r)];if(0===(n=(0,_.roundIfAlmostInteger)(e*this.internalSampleRate)))return[2,this.getFirstPacket(r)];if(n<0)return[2,null];return(0,_.assert)(this.bitstream.lastMetadataPacket),[4,this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket)];case 1:if(!(a=h.sent()))return[2,null];i=a.startPage,s=this.demuxer.reader.fileSize,o=[i],h.label=2;case 2:if(!(i.headerStartPos+i.totalSize<s))return[3,13];u=c=Math.floor((i.headerStartPos+s)/2),h.label=3;case 3:if(l=Math.min(u+T.MAX_PAGE_SIZE,s-T.MIN_PAGE_HEADER_SIZE),!((d=this.demuxer.reader.requestSlice(u,l-u))instanceof Promise))return[3,5];return[4,d];case 4:d=h.sent(),h.label=5;case 5:if((0,_.assert)(d),!(0,T.findNextPageHeader)(d,l))return s=c+T.MIN_PAGE_HEADER_SIZE,[3,2];if(!((f=this.demuxer.reader.requestSliceRange(d.filePos,T.MIN_PAGE_HEADER_SIZE,T.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,7];return[4,f];case 6:f=h.sent(),h.label=7;case 7:if((0,_.assert)(f),p=(0,T.readPageHeader)(f),(0,_.assert)(p),m=!1,p.serialNumber!==this.bitstream.serialNumber)return[3,8];return m=!0,[3,11];case 8:if(!((g=this.demuxer.reader.requestSlice(p.headerStartPos,p.totalSize))instanceof Promise))return[3,10];return[4,g];case 9:g=h.sent(),h.label=10;case 10:(0,_.assert)(g),b=(0,S.readBytes)(g,p.totalSize),m=(0,w.computeOggPageCrc)(b)===p.checksum,h.label=11;case 11:if(!m)return u=p.headerStartPos+4,[3,3];if(m&&p.serialNumber!==this.bitstream.serialNumber||-1===p.granulePosition)return u=p.headerStartPos+p.totalSize,[3,3];return this.granulePositionToTimestampInSamples(p.granulePosition)>n?s=p.headerStartPos:(i=p,o.push(p)),[3,2];case 12:return[3,2];case 13:k=a.startPage,x=!0,I=!1,P=void 0;try{for(C=o[Symbol.iterator]();!(x=(A=C.next()).done)&&(B=A.value).granulePosition!==i.granulePosition;x=!0)(!k||B.headerStartPos>k.headerStartPos)&&(k=B)}catch(e){I=!0,P=e}finally{try{x||null==C.return||C.return()}finally{if(I)throw P}}D=[M=k],h.label=14;case 14:if(M.serialNumber===this.bitstream.serialNumber&&M.granulePosition===i.granulePosition)return[3,17];if(F=M.headerStartPos+M.totalSize,!((R=this.demuxer.reader.requestSliceRange(F,T.MIN_PAGE_HEADER_SIZE,T.MAX_PAGE_HEADER_SIZE))instanceof Promise))return[3,16];return[4,R];case 15:R=h.sent(),h.label=16;case 16:return(0,_.assert)(R),U=(0,T.readPageHeader)(R),(0,_.assert)(U),(M=U).serialNumber===this.bitstream.serialNumber&&D.push(M),[3,14];case 17:if((0,_.assert)(-1!==M.granulePosition),O=null,V=M,z=0,M.headerStartPos!==a.startPage.headerStartPos)return[3,18];return L=this.granulePositionToTimestampInSamples(0),N=!0,O=0,[3,20];case 18:for(L=0,N=!1,H=M.lacingValues.length-1;H>=0;H--)if(M.lacingValues[H]<255){O=H+1;break}if(null===O)throw Error("Invalid page with granule position: no packets end on this page.");return z=O-1,G={data:y.PLACEHOLDER_DATA,endPage:V,endSegmentIndex:z},[4,this.demuxer.findNextPacketStart(G)];case 19:if(h.sent())q=j(D,M,O),(0,_.assert)(q),(W=E(D,q.page,q.segmentIndex))&&(M=W.page,O=W.segmentIndex);else for(;(K=j(D,M,O))&&(X=E(D,K.page,K.segmentIndex));)if(M=X.page,O=X.segmentIndex,K.page.headerStartPos!==V.headerStartPos){V=K.page,z=K.segmentIndex;break}h.label=20;case 20:Q=null,Z=null,h.label=21;case 21:if(null===M)return[3,24];return(0,_.assert)(null!==O),[4,this.demuxer.readPacket(M,O)];case 22:if(!(Y=h.sent())||!(M.headerStartPos===a.startPage.headerStartPos&&O<a.startSegmentIndex)&&($=this.createEncodedPacketFromOggPacket(Y,{timestampInSamples:L,vorbisLastBlocksize:null!=(J=null==Z?void 0:Z.vorbisBlockSize)?J:null},r),(0,_.assert)($),ee=this.encodedPacketToMetadata.get($),(0,_.assert)(ee),N||Y.endPage.headerStartPos!==V.headerStartPos||Y.endSegmentIndex!==z?L+=ee.durationInSamples:(L=this.granulePositionToTimestampInSamples(M.granulePosition),N=!0,$=this.createEncodedPacketFromOggPacket(Y,{timestampInSamples:L-ee.durationInSamples,vorbisLastBlocksize:null!=(et=null==Z?void 0:Z.vorbisBlockSize)?et:null},r),(0,_.assert)($),ee=this.encodedPacketToMetadata.get($),(0,_.assert)(ee)),Q=$,Z=ee,N&&(Math.max(L,0)>n||Math.max(ee.timestampInSamples,0)===n)))return[3,24];return[4,this.demuxer.findNextPacketStart(Y)];case 23:if(!(er=h.sent()))return[3,24];return M=er.startPage,O=er.startSegmentIndex,[3,21];case 24:return[2,Q]}})}).call(this)}},{key:"getPacketSequential",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o,c,u,l;return(0,h._)(this,function(d){switch(d.label){case 0:return[4,this.sequentialScanMutex.acquire()];case 1:n=d.sent(),d.label=2;case 2:if(d.trys.push([2,,9,10]),e=(a=(0,_.roundIfAlmostInteger)(e*this.internalSampleRate))/this.internalSampleRate,-1===(i=(0,_.binarySearchLessOrEqual)(this.sequentialScanCache,a,function(e){return e.timestampInSamples})))return[3,3];return o=this.sequentialScanCache[i],s=this.createEncodedPacketFromOggPacket(o.packet,{timestampInSamples:o.timestampInSamples,vorbisLastBlocksize:o.vorbisLastBlockSize},r),[3,5];case 3:return[4,this.getFirstPacket(r)];case 4:s=d.sent(),d.label=5;case 5:c=0,d.label=6;case 6:if(!(s&&s.timestamp<e))return[3,8];return[4,this.getNextPacket(s,r)];case 7:if(!(u=d.sent())||u.timestamp>e)return[3,8];return s=u,100==++c&&(c=0,l=this.encodedPacketToMetadata.get(s),(0,_.assert)(l),this.sequentialScanCache.length>0&&(0,_.assert)((0,_.last)(this.sequentialScanCache).timestampInSamples<=l.timestampInSamples),this.sequentialScanCache.push(l)),[3,6];case 8:return[2,s];case 9:return n(),[7];case 10:return[2]}})}).call(this)}},{key:"getKeyPacket",value:function(e,r){return this.getPacket(e,r)}},{key:"getNextKeyPacket",value:function(e,r){return this.getNextPacket(e,r)}}]),e}(),E=function(e,r,n){var a=r,i=n;e:for(;;){for(i--;i>=0;i--)if(a.lacingValues[i]<255){i++;break e}if((0,_.assert)(-1===i),!(1&a.headerType)){i=0;break}var s=(0,_.findLast)(e,function(e){return e.headerStartPos<a.headerStartPos});if(!s)return null;i=(a=s).lacingValues.length}if((0,_.assert)(-1!==i),i===a.lacingValues.length){var o=e[e.indexOf(a)+1];(0,_.assert)(o),a=o,i=0}return{page:a,segmentIndex:i}},j=function(e,r,n){if(n>0)return{page:r,segmentIndex:n-1};var a=(0,_.findLast)(e,function(e){return e.headerStartPos<r.headerStartPos});return a?{page:a,segmentIndex:a.lacingValues.length-1}:null}},{"@swc/helpers/cjs/_async_to_generator.cjs":"cZn0e","@swc/helpers/cjs/_call_super.cjs":"clpdF","@swc/helpers/cjs/_class_call_check.cjs":"4Uf9M","@swc/helpers/cjs/_create_class.cjs":"igUuK","@swc/helpers/cjs/_inherits.cjs":"jtSwf","@swc/helpers/cjs/_object_spread.cjs":"kyoEj","@swc/helpers/cjs/_to_consumable_array.cjs":"i81N6","@swc/helpers/cjs/_ts_generator.cjs":"eltGh","../codec.js":"fXWqW","../codec-data.js":"kWTYV","../demuxer.js":"d4thC","../input-track.js":"b22CJ","../metadata.js":"eSjom","../misc.js":"j7iGm","../packet.js":"QfqGG","../reader.js":"8KRfO","./ogg-misc.js":"g1LsD","./ogg-reader.js":"fY5up","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],g1LsD:[function(e,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"OGGS",function(){return u}),i.export(n,"computeOggPageCrc",function(){return p}),i.export(n,"extractSampleMetadata",function(){return m}),i.export(n,"buildOggMimeType",function(){return g});for(var s=e("@swc/helpers/cjs/_to_consumable_array.cjs"),o=e("../codec-data.js"),c=e("../misc.js"),u=0x5367674f,l=new Uint32Array(256),d=0;d<256;d++){for(var f=d<<24,h=0;h<8;h++)f=0x80000000&f?f<<1^0x4c11db7:f<<1;l[d]=f>>>0}var p=function(e){var r=(0,c.toDataView)(e),n=r.getUint32(22,!0);r.setUint32(22,0,!0);for(var a=0,i=0;i<e.length;i++)a=(a<<8^l[a>>>24^e[i]])>>>0;return r.setUint32(22,n,!0),a},m=function(e,r,n){var a=0,i=null;if(e.length>0)if("vorbis"===r.codec){(0,c.assert)(r.vorbisInfo);var s=r.vorbisInfo.modeBlockflags.length,u=(1<<(0,c.ilog)(s-1))-1<<1,l=(e[0]&u)>>1;if(l>=r.vorbisInfo.modeBlockflags.length)throw Error("Invalid mode number.");var d=n,f=r.vorbisInfo.modeBlockflags[l];if(i=r.vorbisInfo.blocksizes[f],1===f){var h=e[0]&(1|u)+1?1:0;d=r.vorbisInfo.blocksizes[h]}a=null!==d?d+i>>2:0}else"opus"===r.codec&&(a=(0,o.parseOpusTocByte)(e).durationInSamples);return{durationInSamples:a,vorbisBlockSize:i}},g=function(e){var r="audio/ogg";if(e.codecStrings){var n=(0,s._)(new Set(e.codecStrings));r+='; codecs="'.concat(n.join(", "),'"')}return r}},{"@swc/helpers/cjs/_to_consumable_array.cjs":"i81N6","../codec-data.js":"kWTYV","../misc.js":"j7iGm","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],fY5up:[function(e,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"MIN_PAGE_HEADER_SIZE",function(){return c}),i.export(n,"MAX_PAGE_HEADER_SIZE",function(){return u}),i.export(n,"MAX_PAGE_SIZE",function(){return l}),i.export(n,"readPageHeader",function(){return d}),i.export(n,"findNextPageHeader",function(){return f});var s=e("../reader.js"),o=e("./ogg-misc.js"),c=27,u=282,l=65307,d=function(e){var r=e.filePos;if((0,s.readU32Le)(e)!==o.OGGS)return 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c=e("@swc/helpers/cjs/_async_to_generator.cjs"),u=e("@swc/helpers/cjs/_call_super.cjs"),l=e("@swc/helpers/cjs/_class_call_check.cjs"),d=e("@swc/helpers/cjs/_create_class.cjs"),f=e("@swc/helpers/cjs/_inherits.cjs"),h=e("@swc/helpers/cjs/_object_spread.cjs"),p=e("@swc/helpers/cjs/_to_consumable_array.cjs"),m=e("@swc/helpers/cjs/_ts_generator.cjs"),g=e("../demuxer.js"),b=e("../input-track.js"),k=e("../metadata.js"),_=e("../misc.js"),y=e("../packet.js"),S=e("../reader.js"),w=e("../id3.js");(i=s||(s={}))[i.PCM=1]="PCM",i[i.IEEE_FLOAT=3]="IEEE_FLOAT",i[i.ALAW=6]="ALAW",i[i.MULAW=7]="MULAW",i[i.EXTENSIBLE=65534]="EXTENSIBLE";var T=function(e){"use strict";function r(e){var n;return(0,l._)(this,r),(n=(0,u._)(this,r,[e])).metadataPromise=null,n.dataStart=-1,n.dataSize=-1,n.audioInfo=null,n.tracks=[],n.lastKnownPacketIndex=0,n.metadataTags={},n.reader=e._reader,n}return(0,f._)(r,e),(0,d._)(r,[{key:"readMetadata",value:function(){return(0,c._)(function(){var 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w=this.audioInfo.blockSizeInBytes,this.dataSize=Math.floor(this.dataSize/w)*w,this.tracks.push(new(0,b.InputAudioTrack)(this.input,new x(this))),[2]}})}).call(e)]})}).call(this)}},{key:"parseFmtChunk",value:function(e,r,n){return(0,c._)(function(){var a,i,o,c,u,l,d;return(0,m._)(this,function(f){switch(f.label){case 0:if(!((a=this.reader.requestSlice(e,r))instanceof Promise))return[3,2];return[4,a];case 1:a=f.sent(),f.label=2;case 2:if(!a)return[2];return i=(0,S.readU16)(a,n),o=(0,S.readU16)(a,n),c=(0,S.readU32)(a,n),a.skip(4),u=(0,S.readU16)(a,n),l=14===r?8:(0,S.readU16)(a,n),r>=18&&357!==i&&Math.min(r-18,(0,S.readU16)(a,n))>=22&&i===s.EXTENSIBLE&&(a.skip(6),i=(d=(0,S.readBytes)(a,16))[0]|d[1]<<8),(i===s.MULAW||i===s.ALAW)&&(l=8),this.audioInfo={format:i,numberOfChannels:o,sampleRate:c,sampleSizeInBytes:Math.ceil(l/8),blockSizeInBytes:u},[2]}})}).call(this)}},{key:"parseListChunk",value:function(e,r,n){return(0,c._)(function(){var 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s=e("@swc/helpers/cjs/_async_to_generator.cjs"),o=e("@swc/helpers/cjs/_call_super.cjs"),c=e("@swc/helpers/cjs/_class_call_check.cjs"),u=e("@swc/helpers/cjs/_create_class.cjs"),l=e("@swc/helpers/cjs/_inherits.cjs"),d=e("@swc/helpers/cjs/_object_spread.cjs"),f=e("@swc/helpers/cjs/_ts_generator.cjs"),h=e("../codec.js"),p=e("../demuxer.js"),m=e("../input-track.js"),g=e("../misc.js"),b=e("../packet.js"),k=e("../reader.js"),_=e("../metadata.js"),y=e("./adts-reader.js"),S=function(e){"use strict";function r(e){var n;return(0,c._)(this,r),(n=(0,o._)(this,r,[e])).metadataPromise=null,n.firstFrameHeader=null,n.loadedSamples=[],n.tracks=[],n.readingMutex=new(0,g.AsyncMutex),n.lastSampleLoaded=!1,n.lastLoadedPos=0,n.nextTimestampInSamples=0,n.reader=e._reader,n}return(0,l._)(r,e),(0,u._)(r,[{key:"readMetadata",value:function(){return(0,s._)(function(){var e,r;return(0,f._)(this,function(n){return 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g.UNDETERMINED_LANGUAGE}},{key:"getCodec",value:function(){return"aac"}},{key:"getInternalCodecId",value:function(){return(0,g.assert)(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}},{key:"getNumberOfChannels",value:function(){(0,g.assert)(this.demuxer.firstFrameHeader);var e=h.aacChannelMap[this.demuxer.firstFrameHeader.channelConfiguration];return(0,g.assert)(void 0!==e),e}},{key:"getSampleRate",value:function(){(0,g.assert)(this.demuxer.firstFrameHeader);var e=h.aacFrequencyTable[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return(0,g.assert)(void 0!==e),e}},{key:"getDisposition",value:function(){return(0,d._)({},_.DEFAULT_TRACK_DISPOSITION)}},{key:"getDecoderConfig",value:function(){return(0,s._)(function(){var e,r,n,a,i,s;return(0,f._)(this,function(o){return(0,g.assert)(this.demuxer.firstFrameHeader),e=new Uint8Array(3),r=new(0,g.Bitstream)(e),a=(n=this.demuxer.firstFrameHeader).objectType,i=n.samplingFrequencyIndex,s=n.channelConfiguration,a>31?(r.writeBits(5,31),r.writeBits(6,a-32)):r.writeBits(5,a),r.writeBits(4,i),r.writeBits(4,s),[2,{codec:"mp4a.40.".concat(this.demuxer.firstFrameHeader.objectType),numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate(),description:e.subarray(0,Math.ceil((r.pos-1)/8))}]})}).call(this)}},{key:"getPacketAtIndex",value:function(e,r){return(0,s._)(function(){var n,a,i;return(0,f._)(this,function(s){switch(s.label){case 0:if(-1===e||!(n=this.demuxer.loadedSamples[e]))return[2,null];if(!r.metadataOnly)return[3,1];return a=b.PLACEHOLDER_DATA,[3,4];case 1:if(!((i=this.demuxer.reader.requestSlice(n.dataStart,n.dataSize))instanceof Promise))return[3,3];return[4,i];case 2:i=s.sent(),s.label=3;case 3:if(!i)return[2,null];a=(0,k.readBytes)(i,n.dataSize),s.label=4;case 4:return[2,new(0,b.EncodedPacket)(a,"key",n.timestamp,n.duration,e,n.dataSize)]}})}).call(this)}},{key:"getFirstPacket",value:function(e){return this.getPacketAtIndex(0,e)}},{key:"getNextPacket",value:function(e,r){return(0,s._)(function(){var n,a,i;return(0,f._)(this,function(s){switch(s.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:n=s.sent(),s.label=2;case 2:if(s.trys.push([2,,6,7]),-1===(a=(0,g.binarySearchExact)(this.demuxer.loadedSamples,e.timestamp,function(e){return e.timestamp})))throw Error("Packet was not created from this track.");i=a+1,s.label=3;case 3:if(!(i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded))return[3,5];return[4,this.demuxer.advanceReader()];case 4:return s.sent(),[3,3];case 5:return[2,this.getPacketAtIndex(i,r)];case 6:return n(),[7];case 7:return[2]}})}).call(this)}},{key:"getPacket",value:function(e,r){return(0,s._)(function(){var n,a;return(0,f._)(this,function(i){switch(i.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:n=i.sent(),i.label=2;case 2:i.trys.push([2,,6,7]),i.label=3;case 3:if(-1===(a=(0,g.binarySearchLessOrEqual)(this.demuxer.loadedSamples,e,function(e){return e.timestamp}))&&this.demuxer.loadedSamples.length>0)return[2,null];if(this.demuxer.lastSampleLoaded||a>=0&&a+1<this.demuxer.loadedSamples.length)return[2,this.getPacketAtIndex(a,r)];return[4,this.demuxer.advanceReader()];case 4:return i.sent(),[3,3];case 5:return[3,7];case 6:return n(),[7];case 7:return[2]}})}).call(this)}},{key:"getKeyPacket",value:function(e,r){return this.getPacket(e,r)}},{key:"getNextKeyPacket",value:function(e,r){return this.getNextPacket(e,r)}}]),e}()},{"@swc/helpers/cjs/_async_to_generator.cjs":"cZn0e","@swc/helpers/cjs/_call_super.cjs":"clpdF","@swc/helpers/cjs/_class_call_check.cjs":"4Uf9M","@swc/helpers/cjs/_create_class.cjs":"igUuK","@swc/helpers/cjs/_inherits.cjs":"jtSwf","@swc/helpers/cjs/_object_spread.cjs":"kyoEj","@swc/helpers/cjs/_ts_generator.cjs":"eltGh","../codec.js":"fXWqW","../demuxer.js":"d4thC","../input-track.js":"b22CJ","../misc.js":"j7iGm","../packet.js":"QfqGG","../reader.js":"8KRfO","../metadata.js":"eSjom","./adts-reader.js":"5AUBv","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],e0w8C:[function(e,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"FlacDemuxer",function(){return S});var s=e("@swc/helpers/cjs/_async_to_generator.cjs"),o=e("@swc/helpers/cjs/_call_super.cjs"),c=e("@swc/helpers/cjs/_class_call_check.cjs"),u=e("@swc/helpers/cjs/_create_class.cjs"),l=e("@swc/helpers/cjs/_inherits.cjs"),d=e("@swc/helpers/cjs/_object_spread.cjs"),f=e("@swc/helpers/cjs/_ts_generator.cjs"),h=e("../codec-data.js"),p=e("../demuxer.js"),m=e("../input-track.js"),g=e("../misc.js"),b=e("../packet.js"),k=e("../reader.js"),_=e("../metadata.js"),y=e("./flac-misc.js"),S=function(e){"use strict";function r(e){var n;return(0,c._)(this,r),(n=(0,o._)(this,r,[e])).loadedSamples=[],n.metadataPromise=null,n.track=null,n.metadataTags={},n.audioInfo=null,n.lastLoadedPos=null,n.blockingBit=null,n.readingMutex=new(0,g.AsyncMutex),n.lastSampleLoaded=!1,n.reader=e._reader,n}return(0,l._)(r,e),(0,u._)(r,[{key:"computeDuration",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),(0,g.assert)(this.track),[2,this.track.computeDuration()]}})}).call(this)}},{key:"getMetadataTags",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),[2,this.metadataTags]}})}).call(this)}},{key:"getTracks",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){switch(e.label){case 0:return[4,this.readMetadata()];case 1:return e.sent(),(0,g.assert)(this.track),[2,[this.track]]}})}).call(this)}},{key:"getMimeType",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){return[2,"audio/flac"]})})()}},{key:"readMetadata",value:function(){return(0,s._)(function(){var e,r,n;return(0,f._)(this,function(a){return e=this,r=4,[2,null!=(n=this.metadataPromise)?n:this.metadataPromise=(0,s._)(function(){var e,n,a,i,s,o,c,u,l,d,p,b,_,y,S,T,x,I,E,j,P,C,A,B,M;return(0,f._)(this,function(f){switch(f.label){case 0:if(!(null===this.reader.fileSize||r<this.reader.fileSize))return[3,14];if(!((e=this.reader.requestSlice(r,4))instanceof Promise))return[3,2];return[4,e];case 1:e=f.sent(),f.label=2;case 2:if(r+=4,null===e)throw Error("Metadata block at position ".concat(r," is too small! Corrupted file."));switch((0,g.assert)(e),n=(0,k.readU8)(e),a=(0,k.readU24Be)(e),i=(128&n)!=0,127&n){case h.FlacBlockType.STREAMINFO:return[3,3];case h.FlacBlockType.VORBIS_COMMENT:return[3,6];case h.FlacBlockType.PICTURE:return[3,9]}return[3,12];case 3:if(!((s=this.reader.requestSlice(r,a))instanceof Promise))return[3,5];return[4,s];case 4:s=f.sent(),f.label=5;case 5:if((0,g.assert)(s),null===s)throw Error("StreamInfo block at position ".concat(r," is too small! Corrupted file."));return o=(0,k.readBytes)(s,34),u=(c=new(0,g.Bitstream)(o)).readBits(16),l=c.readBits(16),d=c.readBits(24),p=c.readBits(24),b=c.readBits(20),_=c.readBits(3)+1,c.readBits(5),y=c.readBits(36),c.skipBits(128),(S=new Uint8Array(42)).set(new Uint8Array([102,76,97,67]),0),S.set(new Uint8Array([128,0,0,34]),4),S.set(o,8),this.audioInfo={numberOfChannels:_,sampleRate:b,totalSamples:y,minimumBlockSize:u,maximumBlockSize:l,minimumFrameSize:d,maximumFrameSize:p,description:S},this.track=new(0,m.InputAudioTrack)(this.input,new w(this)),[3,13];case 6:if(!((T=this.reader.requestSlice(r,a))instanceof Promise))return[3,8];return[4,T];case 7:T=f.sent(),f.label=8;case 8:return(0,g.assert)(T),(0,h.readVorbisComments)((0,k.readBytes)(T,a),this.metadataTags),[3,13];case 9:if(!((I=this.reader.requestSlice(r,a))instanceof Promise))return[3,11];return[4,I];case 10:I=f.sent(),f.label=11;case 11:return(0,g.assert)(I),E=(0,k.readU32Be)(I),j=(0,k.readU32Be)(I),P=g.textDecoder.decode((0,k.readBytes)(I,j)),C=(0,k.readU32Be)(I),A=g.textDecoder.decode((0,k.readBytes)(I,C)),I.skip(16),B=(0,k.readU32Be)(I),M=(0,k.readBytes)(I,B),null!=(x=this.metadataTags).images||(x.images=[]),this.metadataTags.images.push({data:M,mimeType:P,kind:3===E?"coverFront":4===E?"coverBack":"unknown",description:A}),[3,13];case 12:return[3,13];case 13:if(r+=a,i)return this.lastLoadedPos=r,[3,14];return[3,0];case 14:return[2]}})}).call(e)]})}).call(this)}},{key:"readNextFlacFrame",value:function(e){return(0,s._)(function(e){var r,n,a,i,s,o,c,u,l;return(0,f._)(this,function(d){switch(d.label){case 0:return r=e.startPos,n=e.isFirstPacket,(0,g.assert)(this.audioInfo),a=6,i=this.audioInfo.maximumFrameSize+16,[4,this.reader.requestSliceRange(r,this.audioInfo.minimumFrameSize,i)];case 1:if(!(s=d.sent())||!(o=this.readFlacFrameHeader({slice:s,isFirstPacket:n})))return[2,null];for(s.filePos=r+this.audioInfo.minimumFrameSize;;){if(s.filePos>s.end-a)return[2,{num:o.num,blockSize:o.blockSize,sampleRate:o.sampleRate,size:s.end-r,isLastFrame:!0}];if(255===(0,k.readU8)(s)){if(c=s.filePos,(0,k.readU8)(s)!==(1===this.blockingBit?249:248)||(s.skip(-2),u=s.filePos-r,!(l=this.readFlacFrameHeader({slice:s,isFirstPacket:!1})))){s.filePos=c;continue}if(0===this.blockingBit){if(l.num-o.num!=1){s.filePos=c;continue}}else if(l.num-o.num!==o.blockSize){s.filePos=c;continue}return[2,{num:o.num,blockSize:o.blockSize,sampleRate:o.sampleRate,size:u,isLastFrame:!1}]}}return[2]}})}).apply(this,arguments)}},{key:"readFlacFrameHeader",value:function(e){var r=e.slice,n=e.isFirstPacket,a=r.filePos,i=(0,k.readBytes)(r,4),s=new(0,g.Bitstream)(i);if(32764!==s.readBits(15))return null;if(null===this.blockingBit){(0,g.assert)(n);var o=s.readBits(1);this.blockingBit=o}else if(1===this.blockingBit){if((0,g.assert)(!n),1!==s.readBits(1))return null}else if(0===this.blockingBit){if((0,g.assert)(!n),0!==s.readBits(1))return null}else throw Error("Invalid blocking bit");var c=(0,y.getBlockSizeOrUncommon)(s.readBits(4));if(!c)return null;(0,g.assert)(this.audioInfo);var u=(0,y.getSampleRateOrUncommon)(s.readBits(4),this.audioInfo.sampleRate);if(!u||(s.readBits(4),s.readBits(3),0!==s.readBits(1)))return null;var l=(0,y.readCodedNumber)(r),d=(0,y.readBlockSize)(r,c),f=(0,y.readSampleRate)(r,u);if(null===f||f!==this.audioInfo.sampleRate)return null;var h=r.filePos-a,p=(0,k.readU8)(r);return(r.skip(-h),r.skip(-1),p!==(0,y.calculateCrc8)((0,k.readBytes)(r,h)))?null:{num:l,blockSize:d,sampleRate:f}}},{key:"advanceReader",value:function(){return(0,s._)(function(){var e,r,n,a;return(0,f._)(this,function(i){switch(i.label){case 0:return[4,this.readMetadata()];case 1:return i.sent(),(0,g.assert)(null!==this.lastLoadedPos),(0,g.assert)(this.audioInfo),e=this.lastLoadedPos,[4,this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length})];case 2:if(!(r=i.sent()))return this.lastSampleLoaded=!0,[2];return a={blockOffset:(n=this.loadedSamples[this.loadedSamples.length-1])?n.blockOffset+n.blockSize:0,blockSize:r.blockSize,byteOffset:e,byteSize:r.size},this.lastLoadedPos=this.lastLoadedPos+r.size,this.loadedSamples.push(a),r.isLastFrame&&(this.lastSampleLoaded=!0),[2]}})}).call(this)}}]),r}(p.Demuxer),w=function(){"use strict";function e(r){(0,c._)(this,e),this.demuxer=r}return(0,u._)(e,[{key:"getId",value:function(){return 1}},{key:"getCodec",value:function(){return"flac"}},{key:"getInternalCodecId",value:function(){return null}},{key:"getNumberOfChannels",value:function(){return(0,g.assert)(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}},{key:"computeDuration",value:function(){return(0,s._)(function(){var e,r,n;return(0,f._)(this,function(a){switch(a.label){case 0:return[4,this.getPacket(1/0,{metadataOnly:!0})];case 1:return[2,(null!=(r=null==(e=a.sent())?void 0:e.timestamp)?r:0)+(null!=(n=null==e?void 0:e.duration)?n:0)]}})}).call(this)}},{key:"getSampleRate",value:function(){return(0,g.assert)(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}},{key:"getName",value:function(){return null}},{key:"getLanguageCode",value:function(){return g.UNDETERMINED_LANGUAGE}},{key:"getTimeResolution",value:function(){return(0,g.assert)(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}},{key:"getDisposition",value:function(){return(0,d._)({},_.DEFAULT_TRACK_DISPOSITION)}},{key:"getFirstTimestamp",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){return[2,0]})})()}},{key:"getDecoderConfig",value:function(){return(0,s._)(function(){return(0,f._)(this,function(e){return(0,g.assert)(this.demuxer.audioInfo),[2,{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}]})}).call(this)}},{key:"getPacket",value:function(e,r){return(0,s._)(function(){var n,a,i,s;return(0,f._)(this,function(o){switch(o.label){case 0:if(n=this,(0,g.assert)(this.demuxer.audioInfo),e<0)throw Error("Timestamp cannot be negative");return[4,this.demuxer.readingMutex.acquire()];case 1:a=o.sent(),o.label=2;case 2:o.trys.push([2,,9,10]),o.label=3;case 3:if(-1!==(i=(0,g.binarySearchLessOrEqual)(this.demuxer.loadedSamples,e,function(e){return e.blockOffset/n.demuxer.audioInfo.sampleRate})))return[3,5];return[4,this.demuxer.advanceReader()];case 4:case 6:return o.sent(),[3,3];case 5:if(!((s=this.demuxer.loadedSamples[i]).blockOffset/this.demuxer.audioInfo.sampleRate+s.blockSize/this.demuxer.audioInfo.sampleRate<=e))return[3,7];if(this.demuxer.lastSampleLoaded)return[2,this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,r)];return[4,this.demuxer.advanceReader()];case 7:return[2,this.getPacketAtIndex(i,r)];case 8:return[3,10];case 9:return a(),[7];case 10:return[2]}})}).call(this)}},{key:"getNextPacket",value:function(e,r){return(0,s._)(function(){var n,a;return(0,f._)(this,function(i){switch(i.label){case 0:return[4,this.demuxer.readingMutex.acquire()];case 1:n=i.sent(),i.label=2;case 2:if(i.trys.push([2,,6,7]),a=e.sequenceNumber+1,this.demuxer.lastSampleLoaded&&a>=this.demuxer.loadedSamples.length)return[2,null];i.label=3;case 3:if(!(a>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded))return[3,5];return[4,this.demuxer.advanceReader()];case 4:return i.sent(),[3,3];case 5:return[2,this.getPacketAtIndex(a,r)];case 6:return n(),[7];case 7:return[2]}})}).call(this)}},{key:"getKeyPacket",value:function(e,r){return this.getPacket(e,r)}},{key:"getNextKeyPacket",value:function(e,r){return this.getNextPacket(e,r)}},{key:"getPacketAtIndex",value:function(e,r){return(0,s._)(function(){var n,a,i,s,o;return(0,f._)(this,function(c){switch(c.label){case 0:if(!(n=this.demuxer.loadedSamples[e]))return[2,null];if(!r.metadataOnly)return[3,1];return a=b.PLACEHOLDER_DATA,[3,4];case 1:if(!((i=this.demuxer.reader.requestSlice(n.byteOffset,n.byteSize))instanceof Promise))return[3,3];return[4,i];case 2:i=c.sent(),c.label=3;case 3:if(!i)return[2,null];a=(0,k.readBytes)(i,n.byteSize),c.label=4;case 4:return(0,g.assert)(this.demuxer.audioInfo),s=n.blockOffset/this.demuxer.audioInfo.sampleRate,o=n.blockSize/this.demuxer.audioInfo.sampleRate,[2,new(0,b.EncodedPacket)(a,"key",s,o,e,n.byteSize)]}})}).call(this)}},{key:"getFirstPacket",value:function(e){return(0,s._)(function(){return(0,f._)(this,function(r){switch(r.label){case 0:if(!(0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded))return[3,2];return[4,this.demuxer.advanceReader()];case 1:return r.sent(),[3,0];case 2:return[2,this.getPacketAtIndex(0,e)]}})}).call(this)}}]),e}()},{"@swc/helpers/cjs/_async_to_generator.cjs":"cZn0e","@swc/helpers/cjs/_call_super.cjs":"clpdF","@swc/helpers/cjs/_class_call_check.cjs":"4Uf9M","@swc/helpers/cjs/_create_class.cjs":"igUuK","@swc/helpers/cjs/_inherits.cjs":"jtSwf","@swc/helpers/cjs/_object_spread.cjs":"kyoEj","@swc/helpers/cjs/_ts_generator.cjs":"eltGh","../codec-data.js":"kWTYV","../demuxer.js":"d4thC","../input-track.js":"b22CJ","../misc.js":"j7iGm","../packet.js":"QfqGG","../reader.js":"8KRfO","../metadata.js":"eSjom","./flac-misc.js":"4iR5P","@parcel/transformer-js/src/esmodule-helpers.js":"qpMMf"}],"4iR5P":[function(e,r,n,a){var i=e("@parcel/transformer-js/src/esmodule-helpers.js");i.defineInteropFlag(n),i.export(n,"getBlockSizeOrUncommon",function(){return c}),i.export(n,"getSampleRateOrUncommon",function(){return u}),i.export(n,"readCodedNumber",function(){return l}),i.export(n,"readBlockSize",function(){return d}),i.export(n,"readSampleRate",function(){return f}),i.export(n,"calculateCrc8",function(){return h});var s=e("../misc.js"),o=e("../reader.js"),c=function(e){if(0===e)return null;if(1===e)return 192;if(e>=2&&e<=5)return 144*Math.pow(2,e);if(6===e)return"uncommon-u8";if(7===e)return"uncommon-u16";else if(e>=8&&e<=15)return Math.pow(2,e);else return null},u=function(e,r){switch(e){case 0:return r;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}},l=function(e){for(var r=0,n=new(0,s.Bitstream)((0,o.readBytes)(e,1));1===n.readBits(1);)r++;if(0===r)return n.readBits(7);for(var a=[],i=r-1,c=new(0,s.Bitstream)((0,o.readBytes)(e,i)),u=8-r-1,l=0;l<u;l++)a.unshift(n.readBits(1));for(var d=0;d<i;d++)for(var f=0;f<8;f++){var 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